/* $Id: exo-icon-view.c 24207 2006-12-28 19:16:50Z benny $ */
/*-
 * Copyright (c) 2004-2006  os-cillation e.K.
 * Copyright (c) 2002,2004  Anders Carlsson <andersca@gnu.org>
 *
 * Written by Benedikt Meurer <benny@xfce.org>.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

/* Modified by Hong Jen Yee (PCMan) <pcman.tw@gmail.com>
 * on 2008.05.11 for use in PCManFM */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

/* #ifdef HAVE_MATH_H */
#include <math.h>
/* #endif */
#ifdef HAVE_MEMORY_H
#include <memory.h>
#endif
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#ifdef HAVE_STRING_H
#include <string.h>
#endif

#include <gdk/gdkkeysyms.h>

#include "exo-icon-view.h"
#include "exo-string.h"
#include "exo-marshal.h"
#include "exo-private.h"
#include "exo-common.h"

#include "gtk2-compat.h"
#include "ptk-utils.h"


GType
exo_icon_view_layout_mode_get_type (void)
{
    static GType type = 0;
    if (type == 0) {
        static const GEnumValue values[] = {
            { EXO_ICON_VIEW_LAYOUT_ROWS, "EXO_ICON_VIEW_LAYOUT_ROWS", "rows" },
            { EXO_ICON_VIEW_LAYOUT_COLS, "EXO_ICON_VIEW_LAYOUT_COLS", "cols" },
            { 0, NULL, NULL }
        };
        type = g_enum_register_static ("ExoIconViewLayoutMode", values);
    }
    return type;
}
#define EXO_TYPE_ICON_VIEW_LAYOUT_MODE (exo_icon_view_layout_mode_get_type())
/* enumerations from "exo-mount-point.h" */

/* the search dialog timeout (in ms) */
#define EXO_ICON_VIEW_SEARCH_DIALOG_TIMEOUT (5000)

#define SCROLL_EDGE_SIZE 15



/* Property identifiers */
enum
{
    PROP_0,
    PROP_PIXBUF_COLUMN,
    PROP_TEXT_COLUMN,
    PROP_MARKUP_COLUMN,
    PROP_SELECTION_MODE,
    PROP_LAYOUT_MODE,
    PROP_ORIENTATION,
    PROP_MODEL,
    PROP_COLUMNS,
    PROP_ITEM_WIDTH,
    PROP_SPACING,
    PROP_ROW_SPACING,
    PROP_COLUMN_SPACING,
    PROP_MARGIN,
    PROP_REORDERABLE,
    PROP_SINGLE_CLICK,
    PROP_SINGLE_CLICK_TIMEOUT,
    PROP_ENABLE_SEARCH,
    PROP_SEARCH_COLUMN,
#if GTK_CHECK_VERSION (3, 0, 0)
    PROP_HADJUSTMENT,
    PROP_VADJUSTMENT,
    PROP_HSCROLL_POLICY,
    PROP_VSCROLL_POLICY,
#endif
};

/* Signal identifiers */
enum
{
    ITEM_ACTIVATED,
    SELECTION_CHANGED,
    SELECT_ALL,
    UNSELECT_ALL,
    SELECT_CURSOR_ITEM,
    TOGGLE_CURSOR_ITEM,
    MOVE_CURSOR,
    ACTIVATE_CURSOR_ITEM,
    START_INTERACTIVE_SEARCH,
    LAST_SIGNAL
};

/* Icon view flags */
typedef enum
{
    EXO_ICON_VIEW_DRAW_KEYFOCUS = (1l << 0),  /* whether to draw keyboard focus */
    EXO_ICON_VIEW_ITERS_PERSIST = (1l << 1),  /* whether current model provides persistent iterators */
} ExoIconViewFlags;

#define EXO_ICON_VIEW_SET_FLAG(icon_view, flag)   G_STMT_START{ (EXO_ICON_VIEW (icon_view)->priv->flags |= flag); }G_STMT_END
#define EXO_ICON_VIEW_UNSET_FLAG(icon_view, flag) G_STMT_START{ (EXO_ICON_VIEW (icon_view)->priv->flags &= ~(flag));}G_STMT_END
#define EXO_ICON_VIEW_FLAG_SET(icon_view, flag)   ((EXO_ICON_VIEW (icon_view)->priv->flags & (flag)) == (flag))



typedef struct _ExoIconViewCellInfo ExoIconViewCellInfo;
typedef struct _ExoIconViewChild    ExoIconViewChild;
typedef struct _ExoIconViewItem     ExoIconViewItem;



#define EXO_ICON_VIEW_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), EXO_TYPE_ICON_VIEW, ExoIconViewPrivate))
#define EXO_ICON_VIEW_CELL_INFO(obj)   ((ExoIconViewCellInfo *) (obj))
#define EXO_ICON_VIEW_CHILD(obj)       ((ExoIconViewChild *) (obj))
#define EXO_ICON_VIEW_ITEM(obj)        ((ExoIconViewItem *) (obj))



static void exo_icon_view_class_init                     (ExoIconViewClass       *klass);
static void exo_icon_view_cell_layout_init               (GtkCellLayoutIface     *iface);
static void exo_icon_view_init                           (ExoIconView            *icon_view);
static void exo_icon_view_dispose                        (GObject                *object);
static void exo_icon_view_finalize                       (GObject                *object);
static void exo_icon_view_get_property                   (GObject                *object,
                                                                          guint                   prop_id,
                                                                          GValue                 *value,
                                                                          GParamSpec             *pspec);
static void exo_icon_view_set_property                   (GObject                *object,
                                                                          guint                   prop_id,
                                                                          const GValue           *value,
                                                                          GParamSpec             *pspec);
static void exo_icon_view_realize                        (GtkWidget              *widget);
static void exo_icon_view_unrealize                      (GtkWidget              *widget);
static void exo_icon_view_size_allocate                  (GtkWidget              *widget,
                                                                          GtkAllocation          *allocation);
static void exo_icon_view_style_set                      (GtkWidget              *widget,
                                                                          GtkStyle               *previous_style);
#if GTK_CHECK_VERSION (3, 0, 0)
static gboolean             exo_icon_view_draw                           (GtkWidget              *widget,
                                                                          cairo_t                *cr);
static void exo_icon_view_set_hadjustment                (ExoIconView            *icon_view,
                                                                          GtkAdjustment          *hadj);
static void exo_icon_view_set_vadjustment                (ExoIconView            *icon_view,
                                                                          GtkAdjustment          *vadj);
#else
static gboolean             exo_icon_view_expose_event                   (GtkWidget              *widget,
                                                                          GdkEventExpose         *event);
static void exo_icon_view_set_adjustments                (ExoIconView            *icon_view,
                                                                          GtkAdjustment          *hadj,
                                                                          GtkAdjustment          *vadj);
#endif
static void exo_icon_view_size_request                   (GtkWidget              *widget,
                                                                          GtkRequisition         *requisition);
static gboolean             exo_icon_view_motion_notify_event            (GtkWidget              *widget,
                                                                          GdkEventMotion         *event);
static gboolean             exo_icon_view_button_press_event             (GtkWidget              *widget,
                                                                          GdkEventButton         *event);
static gboolean             exo_icon_view_button_release_event           (GtkWidget              *widget,
                                                                          GdkEventButton         *event);
static gboolean             exo_icon_view_scroll_event                   (GtkWidget              *widget,
                                                                          GdkEventScroll         *event);
static gboolean             exo_icon_view_key_press_event                (GtkWidget              *widget,
                                                                          GdkEventKey            *event);
static gboolean             exo_icon_view_focus_out_event                (GtkWidget              *widget,
                                                                          GdkEventFocus          *event);
static gboolean             exo_icon_view_leave_notify_event             (GtkWidget              *widget,
                                                                          GdkEventCrossing       *event);
static void exo_icon_view_remove                         (GtkContainer           *container,
                                                                          GtkWidget              *widget);
static void exo_icon_view_forall                         (GtkContainer           *container,
                                                                          gboolean                include_internals,
                                                                          GtkCallback             callback,
                                                                          gpointer                callback_data);
static void exo_icon_view_real_select_all                (ExoIconView            *icon_view);
static void exo_icon_view_real_unselect_all              (ExoIconView            *icon_view);
static void exo_icon_view_real_select_cursor_item        (ExoIconView            *icon_view);
static void exo_icon_view_real_toggle_cursor_item        (ExoIconView            *icon_view);
static gboolean             exo_icon_view_real_activate_cursor_item      (ExoIconView            *icon_view);
static gboolean             exo_icon_view_real_start_interactive_search  (ExoIconView            *icon_view);
static void exo_icon_view_adjustment_changed             (GtkAdjustment          *adjustment,
                                                                          ExoIconView            *icon_view);
static gint                 exo_icon_view_layout_cols                    (ExoIconView            *icon_view,
                                                                          gint                    item_height,
                                                                          gint                   *x,
                                                                          gint                   *maximum_height,
                                                                          gint                    max_rows);
static gint                 exo_icon_view_layout_rows                    (ExoIconView            *icon_view,
                                                                          gint                    item_width,
                                                                          gint                   *y,
                                                                          gint                   *maximum_width,
                                                                          gint                    max_cols);
static void exo_icon_view_layout                         (ExoIconView            *icon_view);
static void exo_icon_view_paint_item                     (ExoIconView            *icon_view,
                                                                          ExoIconViewItem        *item,
                                                                          GdkRectangle           *area,
                                                                          #if GTK_CHECK_VERSION (3, 0, 0)
                                                                          cairo_t                *cr,
                                                                          #else
                                                                          GdkDrawable            *drawable,
                                                                          #endif
                                                                          gint                    x,
                                                                          gint                    y,
                                                                          gboolean                draw_focus);
static void exo_icon_view_queue_draw_item                (ExoIconView            *icon_view,
                                                                          ExoIconViewItem        *item);
static void exo_icon_view_queue_layout                   (ExoIconView            *icon_view);
static void exo_icon_view_set_cursor_item                (ExoIconView            *icon_view,
                                                                          ExoIconViewItem        *item,
                                                                          gint                    cursor_cell);
static void exo_icon_view_start_rubberbanding            (ExoIconView            *icon_view,
                                                                          gint                    x,
                                                                          gint                    y);
static void exo_icon_view_stop_rubberbanding             (ExoIconView            *icon_view);
static void exo_icon_view_update_rubberband_selection    (ExoIconView            *icon_view);
static gboolean             exo_icon_view_item_hit_test                  (ExoIconView            *icon_view,
                                                                          ExoIconViewItem        *item,
                                                                          gint                    x,
                                                                          gint                    y,
                                                                          gint                    width,
                                                                          gint                    height);
static gboolean             exo_icon_view_unselect_all_internal          (ExoIconView            *icon_view);
static void exo_icon_view_calculate_item_size            (ExoIconView            *icon_view,
                                                                          ExoIconViewItem        *item);
static void exo_icon_view_calculate_item_size2           (ExoIconView            *icon_view,
                                                                          ExoIconViewItem        *item,
                                                                          gint                   *max_width,
                                                                          gint                   *max_height);
static void exo_icon_view_update_rubberband              (gpointer                data);
static void exo_icon_view_invalidate_sizes               (ExoIconView            *icon_view);
static void exo_icon_view_add_move_binding               (GtkBindingSet          *binding_set,
                                                                          guint                   keyval,
                                                                          guint                   modmask,
                                                                          GtkMovementStep         step,
                                                                          gint                    count);
static gboolean             exo_icon_view_real_move_cursor               (ExoIconView            *icon_view,
                                                                          GtkMovementStep         step,
                                                                          gint                    count);
static void exo_icon_view_move_cursor_up_down            (ExoIconView            *icon_view,
                                                                          gint                    count);
static void exo_icon_view_move_cursor_page_up_down       (ExoIconView            *icon_view,
                                                                          gint                    count);
static void exo_icon_view_move_cursor_left_right         (ExoIconView            *icon_view,
                                                                          gint                    count);
static void exo_icon_view_move_cursor_start_end          (ExoIconView            *icon_view,
                                                                          gint                    count);
static void exo_icon_view_scroll_to_item                 (ExoIconView            *icon_view,
                                                                          ExoIconViewItem        *item);
static void exo_icon_view_select_item                    (ExoIconView            *icon_view,
                                                                          ExoIconViewItem        *item);
static void exo_icon_view_unselect_item                  (ExoIconView            *icon_view,
                                                                          ExoIconViewItem        *item);
static gboolean             exo_icon_view_select_all_between             (ExoIconView            *icon_view,
                                                                          ExoIconViewItem        *anchor,
                                                                          ExoIconViewItem        *cursor);
static ExoIconViewItem *    exo_icon_view_get_item_at_coords             (const ExoIconView      *icon_view,
                                                                          gint                    x,
                                                                          gint                    y,
                                                                          gboolean                only_in_cell,
                                                                          ExoIconViewCellInfo   **cell_at_pos);
static void exo_icon_view_get_cell_area                  (ExoIconView            *icon_view,
                                                                          ExoIconViewItem        *item,
                                                                          ExoIconViewCellInfo    *cell_info,
                                                                          GdkRectangle           *cell_area);
static ExoIconViewCellInfo *exo_icon_view_get_cell_info                  (ExoIconView            *icon_view,
                                                                          GtkCellRenderer        *renderer);
static void exo_icon_view_set_cell_data                  (const ExoIconView      *icon_view,
                                                                          ExoIconViewItem        *item);
static void exo_icon_view_cell_layout_pack_start         (GtkCellLayout          *layout,
                                                                          GtkCellRenderer        *renderer,
                                                                          gboolean                expand);
static void exo_icon_view_cell_layout_pack_end           (GtkCellLayout          *layout,
                                                                          GtkCellRenderer        *renderer,
                                                                          gboolean                expand);
static void exo_icon_view_cell_layout_add_attribute      (GtkCellLayout          *layout,
                                                                          GtkCellRenderer        *renderer,
                                                                          const gchar            *attribute,
                                                                          gint                    column);
static void exo_icon_view_cell_layout_clear              (GtkCellLayout          *layout);
static void exo_icon_view_cell_layout_clear_attributes   (GtkCellLayout          *layout,
                                                                          GtkCellRenderer        *renderer);
static void exo_icon_view_cell_layout_set_cell_data_func (GtkCellLayout          *layout,
                                                                          GtkCellRenderer        *cell,
                                                                          GtkCellLayoutDataFunc   func,
                                                                          gpointer                func_data,
                                                                          GDestroyNotify          destroy);
static void exo_icon_view_cell_layout_reorder            (GtkCellLayout          *layout,
                                                                          GtkCellRenderer        *cell,
                                                                          gint                    position);
static void exo_icon_view_item_activate_cell             (ExoIconView            *icon_view,
                                                                          ExoIconViewItem        *item,
                                                                          ExoIconViewCellInfo    *cell_info,
                                                                          GdkEvent               *event);
static void exo_icon_view_put                            (ExoIconView            *icon_view,
                                                                          GtkWidget              *widget,
                                                                          ExoIconViewItem        *item,
                                                                          gint                    cell);
static void exo_icon_view_remove_widget                  (GtkCellEditable        *editable,
                                                                          ExoIconView            *icon_view);
static void exo_icon_view_start_editing                  (ExoIconView            *icon_view,
                                                                          ExoIconViewItem        *item,
                                                                          ExoIconViewCellInfo    *cell_info,
                                                                          GdkEvent               *event);
static void exo_icon_view_stop_editing                   (ExoIconView            *icon_view,
                                                                          gboolean                cancel_editing);

/* Source side drag signals */
static void exo_icon_view_drag_begin       (GtkWidget        *widget,
                                            GdkDragContext   *context);
static void exo_icon_view_drag_end         (GtkWidget        *widget,
                                            GdkDragContext   *context);
static void exo_icon_view_drag_data_get    (GtkWidget        *widget,
                                            GdkDragContext   *context,
                                            GtkSelectionData *selection_data,
                                            guint             info,
                                            guint             time);
static void exo_icon_view_drag_data_delete (GtkWidget        *widget,
                                            GdkDragContext   *context);

/* Target side drag signals */
static void exo_icon_view_drag_leave         (GtkWidget        *widget,
                                                  GdkDragContext   *context,
                                                  guint             time);
static gboolean exo_icon_view_drag_motion        (GtkWidget        *widget,
                                                  GdkDragContext   *context,
                                                  gint              x,
                                                  gint              y,
                                                  guint             time);
static gboolean exo_icon_view_drag_drop          (GtkWidget        *widget,
                                                  GdkDragContext   *context,
                                                  gint              x,
                                                  gint              y,
                                                  guint             time);
static void exo_icon_view_drag_data_received (GtkWidget        *widget,
                                                  GdkDragContext   *context,
                                                  gint              x,
                                                  gint              y,
                                                  GtkSelectionData *selection_data,
                                                  guint             info,
                                                  guint             time);
static gboolean exo_icon_view_maybe_begin_drag   (ExoIconView      *icon_view,  GdkEventMotion   *event);

static void remove_scroll_timeout            (ExoIconView *icon_view);

/* single-click autoselection support */
static gboolean exo_icon_view_single_click_timeout          (gpointer user_data);
static void exo_icon_view_single_click_timeout_destroy  (gpointer user_data);

/* Interactive search support */
static void exo_icon_view_search_activate           (GtkEntry       *entry,
                                                         ExoIconView    *icon_view);
static void exo_icon_view_search_dialog_hide        (GtkWidget      *search_dialog,
                                                         ExoIconView    *icon_view);
static void exo_icon_view_search_ensure_directory   (ExoIconView    *icon_view);
static void exo_icon_view_search_init               (GtkWidget      *search_entry,
                                                         ExoIconView    *icon_view);
static gboolean exo_icon_view_search_iter               (ExoIconView    *icon_view,
                                                         GtkTreeModel   *model,
                                                         GtkTreeIter    *iter,
                                                         const gchar    *text,
                                                         gint           *count,
                                                         gint            n);
static void exo_icon_view_search_move               (GtkWidget      *widget,
                                                         ExoIconView    *icon_view,
                                                         gboolean        move_up);
#if GTK_CHECK_VERSION (3, 0, 0)
static void exo_icon_view_search_preedit_changed    (GtkEntry       *entry,
                                                         gchar          *preedit,
                                                         #else
static void exo_icon_view_search_preedit_changed    (GtkIMContext   *im_context,
                                                         #endif
                                                         ExoIconView    *icon_view);
static gboolean exo_icon_view_search_start              (ExoIconView    *icon_view,
                                                         gboolean        keybinding);
static gboolean exo_icon_view_search_equal_func         (GtkTreeModel   *model,
                                                         gint            column,
                                                         const gchar    *key,
                                                         GtkTreeIter    *iter,
                                                         gpointer        user_data);
static void exo_icon_view_search_position_func      (ExoIconView    *icon_view,
                                                         GtkWidget      *search_dialog,
                                                         gpointer        user_data);
static gboolean exo_icon_view_search_button_press_event (GtkWidget      *widget,
                                                         GdkEventButton *event,
                                                         ExoIconView    *icon_view);
static gboolean exo_icon_view_search_delete_event       (GtkWidget      *widget,
                                                         GdkEventAny    *event,
                                                         ExoIconView    *icon_view);
static gboolean exo_icon_view_search_key_press_event    (GtkWidget      *widget,
                                                         GdkEventKey    *event,
                                                         ExoIconView    *icon_view);
static gboolean exo_icon_view_search_scroll_event       (GtkWidget      *widget,
                                                         GdkEventScroll *event,
                                                         ExoIconView    *icon_view);
static gboolean exo_icon_view_search_timeout            (gpointer        user_data);
static void exo_icon_view_search_timeout_destroy    (gpointer        user_data);



struct _ExoIconViewCellInfo
{
    GtkCellRenderer      *cell;
    guint                 expand : 1;
    guint                 pack : 1;
    guint                 editing : 1;
    gint                  position;
    GSList               *attributes;
    GtkCellLayoutDataFunc func;
    gpointer              func_data;
    GDestroyNotify        destroy;
};

struct _ExoIconViewChild
{
    ExoIconViewItem *item;
    GtkWidget       *widget;
    gint             cell;
};


struct _ExoIconViewItem {
    GtkTreeIter iter;

    /* Bounding box (a value of -1 for width indicates
   * that the item needs to be layouted first)
   */
    GdkRectangle area;

    /* Individual cells.
   * box[i] is the actual area occupied by cell i,
   * before, after are used to calculate the cell area relative to the box.
   * See exo_icon_view_get_cell_area().
   */
    gint n_cells;
    GdkRectangle *box;
    gint *before;
    gint *after;

    guint row : ((sizeof (guint) / 2) * 8) - 1;
    guint col : ((sizeof (guint) / 2) * 8) - 1;
    guint selected : 1;
    guint selected_before_rubberbanding : 1;
};


struct _ExoIconViewPrivate {
    gint width, height;
    gint rows, cols;

    GtkSelectionMode selection_mode;
    ExoIconViewLayoutMode layout_mode;
    GdkWindow *bin_window;
    GList *children;
    GtkTreeModel *model;
    GList *items;

    GtkAdjustment *hadjustment;
    GtkAdjustment *vadjustment;
#if GTK_CHECK_VERSION (3, 0, 0)
    guint hscroll_policy : 1;
    guint vscroll_policy : 1;
#endif

    gint layout_idle_id;

    gboolean doing_rubberband;
    gint rubberband_x1, rubberband_y1;
    gint rubberband_x2, rubberband_y2;
#if GTK_CHECK_VERSION (3, 0, 0)
    GdkRGBA rubberband_border_color;
    GdkRGBA rubberband_fill_color;
#else
    GdkColor *rubberband_border_color;
    GdkColor *rubberband_fill_color;
#endif

    gint scroll_timeout_id;
    gint scroll_value_diff;
    gint event_last_x, event_last_y;

    ExoIconViewItem *anchor_item;
    ExoIconViewItem *cursor_item;
    ExoIconViewItem *edited_item;
    GtkCellEditable *editable;
    ExoIconViewItem *prelit_item;

    ExoIconViewItem *last_single_clicked;

    GList *cell_list;
    guint n_cells;

    gint cursor_cell;

    GtkOrientation orientation;

    gint columns;
    gint item_width;
    gint spacing;
    gint row_spacing;
    gint column_spacing;
    gint margin;

    gint text_column;
    gint markup_column;
    gint pixbuf_column;

    gint pixbuf_cell;
    gint text_cell;

    /* Drag-and-drop. */
    GdkModifierType start_button_mask;
    gint pressed_button;
    gint press_start_x;
    gint press_start_y;

    GtkTargetList *source_targets;
    GdkDragAction source_actions;

    GtkTargetList *dest_targets;
    GdkDragAction dest_actions;

    GtkTreeRowReference *dest_item;
    ExoIconViewDropPosition dest_pos;

    /* delayed scrolling */
    GtkTreeRowReference          *scroll_to_path;
    gfloat                        scroll_to_row_align;
    gfloat                        scroll_to_col_align;
    guint                         scroll_to_use_align : 1;

    /* misc flags */
    guint                         source_set : 1;
    guint                         dest_set : 1;
    guint                         reorderable : 1;
    guint                         empty_view_drop :1;

    guint                         ctrl_pressed : 1;
    guint                         shift_pressed : 1;

    /* Single-click support
   * The single_click_timeout is the timeout after which the
   * prelited item will be automatically selected in single
   * click mode (0 to disable).
   */
    guint                         single_click : 1;
    guint                         single_click_timeout;
    guint                         single_click_timeout_id;
    guint                         single_click_timeout_state;

    /* Interactive search support */
    guint                         enable_search : 1;
    guint                         search_imcontext_changed : 1;
    gint                          search_column;
    gint                          search_selected_iter;
    gint                          search_timeout_id;
    gboolean                      search_disable_popdown;
    ExoIconViewSearchEqualFunc    search_equal_func;
    gpointer                      search_equal_data;
    GDestroyNotify                search_equal_destroy;
    ExoIconViewSearchPositionFunc search_position_func;
    gpointer                      search_position_data;
    GDestroyNotify                search_position_destroy;
    gint                          search_entry_changed_id;
    GtkWidget                    *search_entry;
    GtkWidget                    *search_window;

    /* ExoIconViewFlags */
    guint flags;
};



static GObjectClass *exo_icon_view_parent_class;
static guint         icon_view_signals[LAST_SIGNAL];



GType
exo_icon_view_get_type (void)
{
    static GType type = G_TYPE_INVALID;

    if (G_UNLIKELY (type == G_TYPE_INVALID))
    {
        type = _exo_g_type_register_simple (GTK_TYPE_CONTAINER, "ExoIconView",
                                            sizeof (ExoIconViewClass), exo_icon_view_class_init,
                                            sizeof (ExoIconView), exo_icon_view_init);
        _exo_g_type_add_interface_simple (type, GTK_TYPE_CELL_LAYOUT, (GInterfaceInitFunc) exo_icon_view_cell_layout_init);
#if GTK_CHECK_VERSION (3, 0, 0)
        _exo_g_type_add_interface_simple (type, GTK_TYPE_SCROLLABLE, NULL);
#endif
    }

    return type;
}


#if GTK_CHECK_VERSION (3, 0, 0)
static void  exo_icon_view_get_preferred_width (GtkWidget *widget, gint      *minimal_width, gint      *natural_width)
{
    GtkRequisition requisition;

    exo_icon_view_size_request (widget, &requisition);

    *minimal_width = *natural_width = requisition.width;
}

static void  exo_icon_view_get_preferred_height (GtkWidget *widget, gint      *minimal_height, gint      *natural_height)
{
    GtkRequisition requisition;

    exo_icon_view_size_request (widget, &requisition);

    *minimal_height = *natural_height = requisition.height;
}
#endif


static void  exo_icon_view_class_init (ExoIconViewClass *klass)
{
    GtkContainerClass *gtkcontainer_class;
    GtkWidgetClass    *gtkwidget_class;
    GtkBindingSet     *gtkbinding_set;
    GObjectClass      *gobject_class;

    /* determine the parent type class */
    exo_icon_view_parent_class = g_type_class_peek_parent (klass);

    /* add our private data to the type's instances */
    g_type_class_add_private (klass, sizeof (ExoIconViewPrivate));

    gobject_class = G_OBJECT_CLASS (klass);
    gobject_class->dispose = exo_icon_view_dispose;
    gobject_class->finalize = exo_icon_view_finalize;
    gobject_class->set_property = exo_icon_view_set_property;
    gobject_class->get_property = exo_icon_view_get_property;

    gtkwidget_class = GTK_WIDGET_CLASS (klass);
    gtkwidget_class->realize = exo_icon_view_realize;
    gtkwidget_class->unrealize = exo_icon_view_unrealize;
    gtkwidget_class->size_allocate = exo_icon_view_size_allocate;
    gtkwidget_class->style_set = exo_icon_view_style_set;
#if GTK_CHECK_VERSION (3, 0, 0)
    gtkwidget_class->draw = exo_icon_view_draw;
    gtkwidget_class->get_preferred_width = exo_icon_view_get_preferred_width;
    gtkwidget_class->get_preferred_height = exo_icon_view_get_preferred_height;
#else
    gtkwidget_class->size_request = exo_icon_view_size_request;
    gtkwidget_class->expose_event = exo_icon_view_expose_event;
#endif
    gtkwidget_class->motion_notify_event = exo_icon_view_motion_notify_event;
    gtkwidget_class->button_press_event = exo_icon_view_button_press_event;
    gtkwidget_class->button_release_event = exo_icon_view_button_release_event;
    gtkwidget_class->scroll_event = exo_icon_view_scroll_event;
    gtkwidget_class->key_press_event = exo_icon_view_key_press_event;
    gtkwidget_class->focus_out_event = exo_icon_view_focus_out_event;
    gtkwidget_class->leave_notify_event = exo_icon_view_leave_notify_event;
    gtkwidget_class->drag_begin = exo_icon_view_drag_begin;
    gtkwidget_class->drag_end = exo_icon_view_drag_end;
    gtkwidget_class->drag_data_get = exo_icon_view_drag_data_get;
    gtkwidget_class->drag_data_delete = exo_icon_view_drag_data_delete;
    gtkwidget_class->drag_leave = exo_icon_view_drag_leave;
    gtkwidget_class->drag_motion = exo_icon_view_drag_motion;
    gtkwidget_class->drag_drop = exo_icon_view_drag_drop;
    gtkwidget_class->drag_data_received = exo_icon_view_drag_data_received;

    gtkcontainer_class = GTK_CONTAINER_CLASS (klass);
    gtkcontainer_class->remove = exo_icon_view_remove;
    gtkcontainer_class->forall = exo_icon_view_forall;

#if !GTK_CHECK_VERSION (3, 0, 0)
    klass->set_scroll_adjustments = exo_icon_view_set_adjustments;
#endif
    klass->select_all = exo_icon_view_real_select_all;
    klass->unselect_all = exo_icon_view_real_unselect_all;
    klass->select_cursor_item = exo_icon_view_real_select_cursor_item;
    klass->toggle_cursor_item = exo_icon_view_real_toggle_cursor_item;
    klass->move_cursor = exo_icon_view_real_move_cursor;
    klass->activate_cursor_item = exo_icon_view_real_activate_cursor_item;
    klass->start_interactive_search = exo_icon_view_real_start_interactive_search;

    /**
   * ExoIconView:column-spacing:
   *
   * The column-spacing property specifies the space which is inserted between
   * the columns of the icon view.
   **/
    g_object_class_install_property (gobject_class, PROP_COLUMN_SPACING,
                                     g_param_spec_int ("column-spacing",
                                                       "Column Spacing",
                                                       "Space which is inserted between grid column",
                                                       0, G_MAXINT, 6,
                                                       EXO_PARAM_READWRITE));

    /**
   * ExoIconView:columns:
   *
   * The columns property contains the number of the columns in which the
   * items should be displayed. If it is -1, the number of columns will
   * be chosen automatically to fill the available area.
   **/
    g_object_class_install_property (gobject_class, PROP_COLUMNS,
                                     g_param_spec_int ("columns",
                                                       "Number of columns",
                                                       "Number of columns to display",
                                                       -1, G_MAXINT, -1,
                                                       EXO_PARAM_READWRITE));

    /**
   * ExoIconView:enable-search:
   *
   * View allows user to search through columns interactively.
   **/
    g_object_class_install_property (gobject_class, PROP_ENABLE_SEARCH,
                                     g_param_spec_boolean ("enable-search",
                                                           "Enable Search",
                                                           "View allows user to search through columns interactively",
                                                           TRUE,
                                                           EXO_PARAM_READWRITE));


    /**
   * ExoIconView:item-width:
   *
   * The item-width property specifies the width to use for each item.
   * If it is set to -1, the icon view will automatically determine a
   * suitable item size.
   **/
    g_object_class_install_property (gobject_class, PROP_ITEM_WIDTH,
                                     g_param_spec_int ("item-width",
                                                       "Width for each item",
                                                       "The width used for each item",
                                                       -1, G_MAXINT, -1,
                                                       EXO_PARAM_READWRITE));

    /**
   * ExoIconView:layout-mode:
   *
   * The layout-mode property specifies the way items are layed out in
   * the #ExoIconView. This can be either %EXO_ICON_VIEW_LAYOUT_ROWS,
   * which is the default, where items are layed out horizontally in
   * rows from top to bottom, or %EXO_ICON_VIEW_LAYOUT_COLS, where items
   * are layed out vertically in columns from left to right.
   **/
    g_object_class_install_property (gobject_class, PROP_LAYOUT_MODE,
                                     g_param_spec_enum ("layout-mode",
                                                        "Layout mode",
                                                        "The layout mode",
                                                        EXO_TYPE_ICON_VIEW_LAYOUT_MODE,
                                                        EXO_ICON_VIEW_LAYOUT_ROWS,
                                                        EXO_PARAM_READWRITE));

    /**
   * ExoIconView:margin:
   *
   * The margin property specifies the space which is inserted
   * at the edges of the icon view.
   **/
    g_object_class_install_property (gobject_class, PROP_MARGIN,
                                     g_param_spec_int ("margin",
                                                       "Margin",
                                                       "Space which is inserted at the edges of the icon view",
                                                       0, G_MAXINT, 6,
                                                       EXO_PARAM_READWRITE));

    /**
   * ExoIconView:markup-column:
   *
   * The markup-column property contains the number of the model column
   * containing markup information to be displayed. The markup column must be
   * of type #G_TYPE_STRING. If this property and the text-column property
   * are both set to column numbers, it overrides the text column.
   * If both are set to -1, no texts are displayed.
   **/
    g_object_class_install_property (gobject_class, PROP_MARKUP_COLUMN,
                                     g_param_spec_int ("markup-column",
                                                       "Markup column",
                                                       "Model column used to retrieve the text if using Pango markup",
                                                       -1, G_MAXINT, -1,
                                                       EXO_PARAM_READWRITE));

    /**
   * ExoIconView:model:
   *
   * The model property contains the #GtkTreeModel, which should be
   * display by this icon view. Setting this property to %NULL turns
   * off the display of anything.
   **/
    g_object_class_install_property (gobject_class, PROP_MODEL,
                                     g_param_spec_object ("model",
                                                          "Icon View Model",
                                                          "The model for the icon view",
                                                          GTK_TYPE_TREE_MODEL,
                                                          EXO_PARAM_READWRITE));

    /**
   * ExoIconView:orientation:
   *
   * The orientation property specifies how the cells (i.e. the icon and
   * the text) of the item are positioned relative to each other.
   **/
    g_object_class_install_property (gobject_class, PROP_ORIENTATION,
                                     g_param_spec_enum ("orientation",
                                                        "Orientation",
                                                        "How the text and icon of each item are positioned relative to each other",
                                                        GTK_TYPE_ORIENTATION,
                                                        GTK_ORIENTATION_VERTICAL,
                                                        EXO_PARAM_READWRITE));

    /**
   * ExoIconView:pixbuf-column:
   *
   * The ::pixbuf-column property contains the number of the model column
   * containing the pixbufs which are displayed. The pixbuf column must be
   * of type #GDK_TYPE_PIXBUF. Setting this property to -1 turns off the
   * display of pixbufs.
   **/
    g_object_class_install_property (gobject_class, PROP_PIXBUF_COLUMN,
                                     g_param_spec_int ("pixbuf-column",
                                                       "Pixbuf column",
                                                       "Model column used to retrieve the icon pixbuf from",
                                                       -1, G_MAXINT, -1,
                                                       EXO_PARAM_READWRITE));

    /**
   * ExoIconView:reorderable:
   *
   * The reorderable property specifies if the items can be reordered by Drag and Drop.
   **/
    g_object_class_install_property (gobject_class, PROP_REORDERABLE,
                                     g_param_spec_boolean ("reorderable",
                                                           "Reorderable",
                                                           "View is reorderable",
                                                           FALSE,
                                                           EXO_PARAM_READWRITE));

    /**
   * ExoIconView:row-spacing:
   *
   * The row-spacing property specifies the space which is inserted between the rows of the icon view.
   **/
    g_object_class_install_property (gobject_class, PROP_ROW_SPACING,
                                     g_param_spec_int ("row-spacing",
                                                       "Row Spacing",
                                                       "Space which is inserted between grid rows",
                                                       0, G_MAXINT, 6,
                                                       EXO_PARAM_READWRITE));

    /**
   * ExoIconView:search-column:
   *
   * Model column to search through when searching through code.
   **/
    g_object_class_install_property (gobject_class, PROP_SEARCH_COLUMN,
                                     g_param_spec_int ("search-column",
                                                       "Search Column",
                                                       "Model column to search through when searching through item",
                                                       -1, G_MAXINT, -1,
                                                       EXO_PARAM_READWRITE));

    /**
   * ExoIconView:selection-mode:
   *
   * The selection-mode property specifies the selection mode of
   * icon view. If the mode is #GTK_SELECTION_MULTIPLE, rubberband selection
   * is enabled, for the other modes, only keyboard selection is possible.
   **/
    g_object_class_install_property (gobject_class, PROP_SELECTION_MODE,
                                     g_param_spec_enum ("selection-mode",
                                                        "Selection mode",
                                                        "The selection mode",
                                                        GTK_TYPE_SELECTION_MODE,
                                                        GTK_SELECTION_SINGLE,
                                                        EXO_PARAM_READWRITE));

    /**
   * ExoIconView:single-click:
   *
   * Determines whether items can be activated by single or double clicks.
   **/
    g_object_class_install_property (gobject_class,
                                     PROP_SINGLE_CLICK,
                                     g_param_spec_boolean ("single-click",
                                                           "Single Click",
                                                           "Whether the items in the view can be activated with single clicks",
                                                           FALSE,
                                                           EXO_PARAM_READWRITE));

    /**
   * ExoIconView:single-click-timeout:
   *
   * The amount of time in milliseconds after which a prelited item (an item
   * which is hovered by the mouse cursor) will be selected automatically in
   * single click mode. A value of %0 disables the automatic selection.
   **/
    g_object_class_install_property (gobject_class, PROP_SINGLE_CLICK_TIMEOUT,
                                     g_param_spec_uint ("single-click-timeout",
                                                        "Single Click Timeout",
                                                        "The amount of time after which the item under the mouse cursor will be selected automatically in single click mode",
                                                        0, G_MAXUINT, 0,
                                                        EXO_PARAM_READWRITE));

    /**
   * ExoIconView:spacing:
   *
   * The spacing property specifies the space which is inserted between
   * the cells (i.e. the icon and the text) of an item.
   **/
    g_object_class_install_property (gobject_class, PROP_SPACING,
                                     g_param_spec_int ("spacing",
                                                       "Spacing",
                                                       "Space which is inserted between cells of an item",
                                                       0, G_MAXINT, 0,
                                                       EXO_PARAM_READWRITE));

    /**
   * ExoIconView:text-column:
   *
   * The text-column property contains the number of the model column
   * containing the texts which are displayed. The text column must be
   * of type #G_TYPE_STRING. If this property and the markup-column
   * property are both set to -1, no texts are displayed.
   **/
    g_object_class_install_property (gobject_class, PROP_TEXT_COLUMN,
                                     g_param_spec_int ("text-column",
                                                       "Text column",
                                                       "Model column used to retrieve the text from",
                                                       -1, G_MAXINT, -1,
                                                       EXO_PARAM_READWRITE));


    gtk_widget_class_install_style_property (gtkwidget_class,
                                             g_param_spec_boxed ("selection-box-color",
                                                                 "Selection Box Color",
                                                                 "Color of the selection box",
                                                                 GDK_TYPE_COLOR,
                                                                 EXO_PARAM_READABLE));

    gtk_widget_class_install_style_property (gtkwidget_class,
                                             g_param_spec_uchar ("selection-box-alpha",
                                                                 "Selection Box Alpha",
                                                                 "Opacity of the selection box",
                                                                 0, 0xff,
                                                                 0x40,
                                                                 EXO_PARAM_READABLE));

#if GTK_CHECK_VERSION (3, 0, 0)
    g_object_class_override_property (gobject_class, PROP_HADJUSTMENT, "hadjustment");
    g_object_class_override_property (gobject_class, PROP_VADJUSTMENT, "vadjustment");
    g_object_class_override_property (gobject_class, PROP_HSCROLL_POLICY, "hscroll-policy");
    g_object_class_override_property (gobject_class, PROP_VSCROLL_POLICY, "vscroll-policy");
#endif

    /**
   * ExoIconView::item-activated:
   * @icon_view : a #ExoIconView.
   * @path      :
   **/
    icon_view_signals[ITEM_ACTIVATED] =
            g_signal_new (I_("item-activated"),
                          G_TYPE_FROM_CLASS (gobject_class),
                          G_SIGNAL_RUN_LAST,
                          G_STRUCT_OFFSET (ExoIconViewClass, item_activated),
                          NULL, NULL,
                          g_cclosure_marshal_VOID__BOXED,
                          G_TYPE_NONE, 1,
                          GTK_TYPE_TREE_PATH);

    /**
   * ExoIconView::selection-changed:
   * @icon_view : a #ExoIconView.
   **/
    icon_view_signals[SELECTION_CHANGED] =
            g_signal_new (I_("selection-changed"),
                          G_TYPE_FROM_CLASS (gobject_class),
                          G_SIGNAL_RUN_FIRST,
                          G_STRUCT_OFFSET (ExoIconViewClass, selection_changed),
                          NULL, NULL,
                          g_cclosure_marshal_VOID__VOID,
                          G_TYPE_NONE, 0);

#if !GTK_CHECK_VERSION (3, 0, 0)
    /**
   * ExoIconView::set-scroll-adjustments:
   * @icon_view   : a #ExoIconView.
   * @hadjustment :
   * @vadjustment :
   **/
    gtkwidget_class->set_scroll_adjustments_signal =
            g_signal_new (I_("set-scroll-adjustments"),
                          G_TYPE_FROM_CLASS (gobject_class),
                          G_SIGNAL_RUN_LAST,
                          G_STRUCT_OFFSET (ExoIconViewClass, set_scroll_adjustments),
                          NULL, NULL,
                          _exo_marshal_VOID__OBJECT_OBJECT,
                          G_TYPE_NONE, 2,
                          GTK_TYPE_ADJUSTMENT, GTK_TYPE_ADJUSTMENT);
#endif

    /**
   * ExoIconView::select-all:
   * @icon_view : a #ExoIconView.
   **/
    icon_view_signals[SELECT_ALL] =
            g_signal_new (I_("select-all"),
                          G_TYPE_FROM_CLASS (gobject_class),
                          G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
                          G_STRUCT_OFFSET (ExoIconViewClass, select_all),
                          NULL, NULL,
                          g_cclosure_marshal_VOID__VOID,
                          G_TYPE_NONE, 0);

    /**
   * ExoIconView::unselect-all:
   * @icon_view : a #ExoIconView.
   **/
    icon_view_signals[UNSELECT_ALL] =
            g_signal_new (I_("unselect-all"),
                          G_TYPE_FROM_CLASS (gobject_class),
                          G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
                          G_STRUCT_OFFSET (ExoIconViewClass, unselect_all),
                          NULL, NULL,
                          g_cclosure_marshal_VOID__VOID,
                          G_TYPE_NONE, 0);

    /**
   * ExoIconView::select-cursor-item:
   * @icon_view : a #ExoIconView.
   **/
    icon_view_signals[SELECT_CURSOR_ITEM] =
            g_signal_new (I_("select-cursor-item"),
                          G_TYPE_FROM_CLASS (gobject_class),
                          G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
                          G_STRUCT_OFFSET (ExoIconViewClass, select_cursor_item),
                          NULL, NULL,
                          g_cclosure_marshal_VOID__VOID,
                          G_TYPE_NONE, 0);

    /**
   * ExoIconView::toggle-cursor-item:
   * @icon_view : a #ExoIconView.
   **/
    icon_view_signals[TOGGLE_CURSOR_ITEM] =
            g_signal_new (I_("toggle-cursor-item"),
                          G_TYPE_FROM_CLASS (gobject_class),
                          G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
                          G_STRUCT_OFFSET (ExoIconViewClass, toggle_cursor_item),
                          NULL, NULL,
                          g_cclosure_marshal_VOID__VOID,
                          G_TYPE_NONE, 0);

    /**
   * ExoIconView::activate-cursor-item:
   * @icon_view : a #ExoIconView.
   *
   * Return value:
   **/
    icon_view_signals[ACTIVATE_CURSOR_ITEM] =
            g_signal_new (I_("activate-cursor-item"),
                          G_TYPE_FROM_CLASS (gobject_class),
                          G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
                          G_STRUCT_OFFSET (ExoIconViewClass, activate_cursor_item),
                          NULL, NULL,
                          _exo_marshal_BOOLEAN__VOID,
                          G_TYPE_BOOLEAN, 0);

    /**
   * ExoIconView::start-interactive-search:
   * @iconb_view : a #ExoIconView.
   *
   * Return value:
   **/
    icon_view_signals[START_INTERACTIVE_SEARCH] =
            g_signal_new (I_("start-interactive-search"),
                          G_TYPE_FROM_CLASS (gobject_class),
                          G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
                          G_STRUCT_OFFSET (ExoIconViewClass, start_interactive_search),
                          NULL, NULL,
                          _exo_marshal_BOOLEAN__VOID,
                          G_TYPE_BOOLEAN, 0);

    /**
   * ExoIconView::move-cursor:
   * @icon_view : a #ExoIconView.
   * @step      :
   * @count     :
   *
   * Return value:
   **/
    icon_view_signals[MOVE_CURSOR] =
            g_signal_new (I_("move-cursor"),
                          G_TYPE_FROM_CLASS (gobject_class),
                          G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
                          G_STRUCT_OFFSET (ExoIconViewClass, move_cursor),
                          NULL, NULL,
                          _exo_marshal_BOOLEAN__ENUM_INT,
                          G_TYPE_BOOLEAN, 2,
                          GTK_TYPE_MOVEMENT_STEP,
                          G_TYPE_INT);

    /* Key bindings */
    gtkbinding_set = gtk_binding_set_by_class (klass);
    gtk_binding_entry_add_signal (gtkbinding_set, GDK_KEY_a, GDK_CONTROL_MASK, "select-all", 0);
    gtk_binding_entry_add_signal (gtkbinding_set, GDK_KEY_a, GDK_CONTROL_MASK | GDK_SHIFT_MASK, "unselect-all", 0);
    gtk_binding_entry_add_signal (gtkbinding_set, GDK_KEY_space, GDK_CONTROL_MASK, "toggle-cursor-item", 0);
    gtk_binding_entry_add_signal (gtkbinding_set, GDK_KEY_space, 0, "activate-cursor-item", 0);
    gtk_binding_entry_add_signal (gtkbinding_set, GDK_KEY_Return, 0, "activate-cursor-item", 0);
    gtk_binding_entry_add_signal (gtkbinding_set, GDK_KEY_ISO_Enter, 0, "activate-cursor-item", 0);
    gtk_binding_entry_add_signal (gtkbinding_set, GDK_KEY_KP_Enter, 0, "activate-cursor-item", 0);
    //  gtk_binding_entry_add_signal (gtkbinding_set, GDK_f, GDK_CONTROL_MASK, "start-interactive-search", 0);   //MOD  stole ctrl-f for create new folder
    gtk_binding_entry_add_signal (gtkbinding_set, GDK_KEY_F, GDK_CONTROL_MASK, "start-interactive-search", 0);

    exo_icon_view_add_move_binding (gtkbinding_set, GDK_KEY_Up, 0, GTK_MOVEMENT_DISPLAY_LINES, -1);
    exo_icon_view_add_move_binding (gtkbinding_set, GDK_KEY_KP_Up, 0, GTK_MOVEMENT_DISPLAY_LINES, -1);
    exo_icon_view_add_move_binding (gtkbinding_set, GDK_KEY_Down, 0, GTK_MOVEMENT_DISPLAY_LINES, 1);
    exo_icon_view_add_move_binding (gtkbinding_set, GDK_KEY_KP_Down, 0, GTK_MOVEMENT_DISPLAY_LINES, 1);
    exo_icon_view_add_move_binding (gtkbinding_set, GDK_KEY_p, GDK_CONTROL_MASK, GTK_MOVEMENT_DISPLAY_LINES, -1);
    exo_icon_view_add_move_binding (gtkbinding_set, GDK_KEY_n, GDK_CONTROL_MASK, GTK_MOVEMENT_DISPLAY_LINES, 1);
    exo_icon_view_add_move_binding (gtkbinding_set, GDK_KEY_Home, 0, GTK_MOVEMENT_BUFFER_ENDS, -1);
    exo_icon_view_add_move_binding (gtkbinding_set, GDK_KEY_KP_Home, 0, GTK_MOVEMENT_BUFFER_ENDS, -1);
    exo_icon_view_add_move_binding (gtkbinding_set, GDK_KEY_End, 0, GTK_MOVEMENT_BUFFER_ENDS, 1);
    exo_icon_view_add_move_binding (gtkbinding_set, GDK_KEY_KP_End, 0, GTK_MOVEMENT_BUFFER_ENDS, 1);
    exo_icon_view_add_move_binding (gtkbinding_set, GDK_KEY_Page_Up, 0, GTK_MOVEMENT_PAGES, -1);
    exo_icon_view_add_move_binding (gtkbinding_set, GDK_KEY_KP_Page_Up, 0, GTK_MOVEMENT_PAGES, -1);
    exo_icon_view_add_move_binding (gtkbinding_set, GDK_KEY_Page_Down, 0, GTK_MOVEMENT_PAGES, 1);
    exo_icon_view_add_move_binding (gtkbinding_set, GDK_KEY_KP_Page_Down, 0, GTK_MOVEMENT_PAGES, 1);
    exo_icon_view_add_move_binding (gtkbinding_set, GDK_KEY_Right, 0, GTK_MOVEMENT_VISUAL_POSITIONS, 1);
    exo_icon_view_add_move_binding (gtkbinding_set, GDK_KEY_Left, 0, GTK_MOVEMENT_VISUAL_POSITIONS, -1);
    exo_icon_view_add_move_binding (gtkbinding_set, GDK_KEY_KP_Right, 0, GTK_MOVEMENT_VISUAL_POSITIONS, 1);
    exo_icon_view_add_move_binding (gtkbinding_set, GDK_KEY_KP_Left, 0, GTK_MOVEMENT_VISUAL_POSITIONS, -1);
}



static void  exo_icon_view_cell_layout_init (GtkCellLayoutIface *iface)
{
    iface->pack_start = exo_icon_view_cell_layout_pack_start;
    iface->pack_end = exo_icon_view_cell_layout_pack_end;
    iface->clear = exo_icon_view_cell_layout_clear;
    iface->add_attribute = exo_icon_view_cell_layout_add_attribute;
    iface->set_cell_data_func = exo_icon_view_cell_layout_set_cell_data_func;
    iface->clear_attributes = exo_icon_view_cell_layout_clear_attributes;
    iface->reorder = exo_icon_view_cell_layout_reorder;
}



static void  exo_icon_view_init (ExoIconView *icon_view)
{
    icon_view->priv = EXO_ICON_VIEW_GET_PRIVATE (icon_view);

    icon_view->priv->selection_mode = GTK_SELECTION_SINGLE;
    icon_view->priv->pressed_button = -1;
    icon_view->priv->press_start_x = -1;
    icon_view->priv->press_start_y = -1;
    icon_view->priv->text_column = -1;
    icon_view->priv->markup_column = -1;
    icon_view->priv->pixbuf_column = -1;
    icon_view->priv->text_cell = -1;
    icon_view->priv->pixbuf_cell = -1;

    gtk_widget_set_can_focus (GTK_WIDGET(icon_view), TRUE);

#if !GTK_CHECK_VERSION (3, 0, 0)
    exo_icon_view_set_adjustments (icon_view, NULL, NULL);
#endif

    icon_view->priv->cursor_cell = -1;

    icon_view->priv->orientation = GTK_ORIENTATION_VERTICAL;

    icon_view->priv->columns = -1;
    icon_view->priv->item_width = -1;
    icon_view->priv->row_spacing = 3;
    icon_view->priv->column_spacing = 3;
    icon_view->priv->margin = 3;

    icon_view->priv->enable_search = TRUE;
    icon_view->priv->search_column = -1;
    icon_view->priv->search_equal_func = exo_icon_view_search_equal_func;
    icon_view->priv->search_position_func = exo_icon_view_search_position_func;

    icon_view->priv->flags = EXO_ICON_VIEW_DRAW_KEYFOCUS;
}



static void  exo_icon_view_dispose (GObject *object)
{
    ExoIconView *icon_view = EXO_ICON_VIEW (object);

    /* cancel any pending search timeout */
    if (G_UNLIKELY (icon_view->priv->search_timeout_id != 0))
        g_source_remove (icon_view->priv->search_timeout_id);

    /* destroy the interactive search dialog */
    if (G_UNLIKELY (icon_view->priv->search_window != NULL))
    {
        gtk_widget_destroy (icon_view->priv->search_window);
        icon_view->priv->search_entry = NULL;
        icon_view->priv->search_window = NULL;
    }

    /* drop search equal and position functions (if any) */
    exo_icon_view_set_search_equal_func (icon_view, NULL, NULL, NULL);
    exo_icon_view_set_search_position_func (icon_view, NULL, NULL, NULL);

    /* reset the drag dest item */
    exo_icon_view_set_drag_dest_item (icon_view, NULL, EXO_ICON_VIEW_NO_DROP);

    /* drop the scroll to path (if any) */
    if (G_UNLIKELY (icon_view->priv->scroll_to_path != NULL))
    {
        gtk_tree_row_reference_free (icon_view->priv->scroll_to_path);
        icon_view->priv->scroll_to_path = NULL;
    }

    /* reset the model (also stops any active editing) */
    exo_icon_view_set_model (icon_view, NULL);

    /* drop the scroll timer */
    remove_scroll_timeout (icon_view);

    (*G_OBJECT_CLASS (exo_icon_view_parent_class)->dispose) (object);
}



static void  exo_icon_view_finalize (GObject *object)
{
    ExoIconView *icon_view = EXO_ICON_VIEW (object);

    /* drop the scroll adjustments */
    g_object_unref (G_OBJECT (icon_view->priv->hadjustment));
    g_object_unref (G_OBJECT (icon_view->priv->vadjustment));

    /* drop the cell renderers */
    exo_icon_view_cell_layout_clear (GTK_CELL_LAYOUT (icon_view));

    /* be sure to cancel the single click timeout */
    if (G_UNLIKELY (icon_view->priv->single_click_timeout_id != 0))
        g_source_remove (icon_view->priv->single_click_timeout_id);

    /* kill the layout idle source (it's important to have this last!) */
    if (G_UNLIKELY (icon_view->priv->layout_idle_id != 0))
        g_source_remove (icon_view->priv->layout_idle_id);

    (*G_OBJECT_CLASS (exo_icon_view_parent_class)->finalize) (object);
}


static void  exo_icon_view_get_property (GObject      *object, guint         prop_id, GValue       *value, GParamSpec   *pspec)
{
    const ExoIconViewPrivate *priv = EXO_ICON_VIEW (object)->priv;

    switch (prop_id)
    {
    case PROP_COLUMN_SPACING:
        g_value_set_int (value, priv->column_spacing);
        break;

    case PROP_COLUMNS:
        g_value_set_int (value, priv->columns);
        break;

    case PROP_ENABLE_SEARCH:
        g_value_set_boolean (value, priv->enable_search);
        break;

    case PROP_ITEM_WIDTH:
        g_value_set_int (value, priv->item_width);
        break;

    case PROP_MARGIN:
        g_value_set_int (value, priv->margin);
        break;

    case PROP_MARKUP_COLUMN:
        g_value_set_int (value, priv->markup_column);
        break;

    case PROP_MODEL:
        g_value_set_object (value, priv->model);
        break;

    case PROP_ORIENTATION:
        g_value_set_enum (value, priv->orientation);
        break;

    case PROP_PIXBUF_COLUMN:
        g_value_set_int (value, priv->pixbuf_column);
        break;

    case PROP_REORDERABLE:
        g_value_set_boolean (value, priv->reorderable);
        break;

    case PROP_ROW_SPACING:
        g_value_set_int (value, priv->row_spacing);
        break;

    case PROP_SEARCH_COLUMN:
        g_value_set_int (value, priv->search_column);
        break;

    case PROP_SELECTION_MODE:
        g_value_set_enum (value, priv->selection_mode);
        break;

    case PROP_SINGLE_CLICK:
        g_value_set_boolean (value, priv->single_click);
        break;

    case PROP_SINGLE_CLICK_TIMEOUT:
        g_value_set_uint (value, priv->single_click_timeout);
        break;

    case PROP_SPACING:
        g_value_set_int (value, priv->spacing);
        break;

    case PROP_TEXT_COLUMN:
        g_value_set_int (value, priv->text_column);
        break;

    case PROP_LAYOUT_MODE:
        g_value_set_enum (value, priv->layout_mode);
        break;

#if GTK_CHECK_VERSION (3, 0, 0)
    case PROP_HADJUSTMENT:
        g_value_set_object (value, priv->hadjustment);
        break;

    case PROP_VADJUSTMENT:
        g_value_set_object (value, priv->vadjustment);
        break;

    case PROP_HSCROLL_POLICY:
        g_value_set_enum (value, priv->hscroll_policy);
        break;

    case PROP_VSCROLL_POLICY:
        g_value_set_enum (value, priv->vscroll_policy);
        break;
#endif

    default:
        G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
        break;
    }
}



static void  exo_icon_view_set_property (GObject      *object, guint         prop_id, const GValue *value, GParamSpec   *pspec)
{
    ExoIconView *icon_view = EXO_ICON_VIEW (object);

    switch (prop_id)
    {
    case PROP_COLUMN_SPACING:
        exo_icon_view_set_column_spacing (icon_view, g_value_get_int (value));
        break;

    case PROP_COLUMNS:
        exo_icon_view_set_columns (icon_view, g_value_get_int (value));
        break;

    case PROP_ENABLE_SEARCH:
        exo_icon_view_set_enable_search (icon_view, g_value_get_boolean (value));
        break;

    case PROP_ITEM_WIDTH:
        exo_icon_view_set_item_width (icon_view, g_value_get_int (value));
        break;

    case PROP_MARGIN:
        exo_icon_view_set_margin (icon_view, g_value_get_int (value));
        break;

    case PROP_MARKUP_COLUMN:
        exo_icon_view_set_markup_column (icon_view, g_value_get_int (value));
        break;

    case PROP_MODEL:
        exo_icon_view_set_model (icon_view, g_value_get_object (value));
        break;

    case PROP_ORIENTATION:
        exo_icon_view_set_orientation (icon_view, g_value_get_enum (value));
        break;

    case PROP_PIXBUF_COLUMN:
        exo_icon_view_set_pixbuf_column (icon_view, g_value_get_int (value));
        break;

    case PROP_REORDERABLE:
        exo_icon_view_set_reorderable (icon_view, g_value_get_boolean (value));
        break;

    case PROP_ROW_SPACING:
        exo_icon_view_set_row_spacing (icon_view, g_value_get_int (value));
        break;

    case PROP_SEARCH_COLUMN:
        exo_icon_view_set_search_column (icon_view, g_value_get_int (value));
        break;

    case PROP_SELECTION_MODE:
        exo_icon_view_set_selection_mode (icon_view, g_value_get_enum (value));
        break;

    case PROP_SINGLE_CLICK:
        exo_icon_view_set_single_click (icon_view, g_value_get_boolean (value));
        break;

    case PROP_SINGLE_CLICK_TIMEOUT:
        exo_icon_view_set_single_click_timeout (icon_view, g_value_get_uint (value));
        break;

    case PROP_SPACING:
        exo_icon_view_set_spacing (icon_view, g_value_get_int (value));
        break;

    case PROP_TEXT_COLUMN:
        exo_icon_view_set_text_column (icon_view, g_value_get_int (value));
        break;

    case PROP_LAYOUT_MODE:
        exo_icon_view_set_layout_mode (icon_view, g_value_get_enum (value));
        break;

#if GTK_CHECK_VERSION (3, 0, 0)
    case PROP_HADJUSTMENT:
        exo_icon_view_set_hadjustment (icon_view, g_value_get_object (value));
        break;

    case PROP_VADJUSTMENT:
        exo_icon_view_set_vadjustment (icon_view, g_value_get_object (value));
        break;

    case PROP_HSCROLL_POLICY:
        icon_view->priv->hscroll_policy = g_value_get_enum (value);
        gtk_widget_queue_resize (GTK_WIDGET (icon_view));
        break;

    case PROP_VSCROLL_POLICY:
        icon_view->priv->vscroll_policy = g_value_get_enum (value);
        gtk_widget_queue_resize (GTK_WIDGET (icon_view));
        break;
#endif

    default:
        G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
        break;
    }
}



static void  exo_icon_view_realize (GtkWidget *widget)
{
    ExoIconViewPrivate *priv = EXO_ICON_VIEW (widget)->priv;
    GdkWindowAttr       attributes;
    GtkAllocation       allocation;
    gint                attributes_mask;

    gtk_widget_set_realized (widget, TRUE);

    /* Allocate the clipping window */
    attributes.window_type = GDK_WINDOW_CHILD;
    gtk_widget_get_allocation (widget, &allocation);
    attributes.x = allocation.x;
    attributes.y = allocation.y;
    attributes.width = allocation.width;
    attributes.height = allocation.height;
    attributes.wclass = GDK_INPUT_OUTPUT;
    attributes.visual = gtk_widget_get_visual (widget);
    attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK;
    attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL;
#if !GTK_CHECK_VERSION (3, 0, 0)
    attributes_mask |= GDK_WA_COLORMAP;
    attributes.colormap = gtk_widget_get_colormap (widget);
#endif
    gtk_widget_set_window (widget, gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask));
    gdk_window_set_user_data (gtk_widget_get_window(widget), widget);

    /* Allocate the icons window */
    attributes.x = 0;
    attributes.y = 0;
    attributes.width = MAX (priv->width, allocation.width);
    attributes.height = MAX (priv->height, allocation.height);
    attributes.event_mask = GDK_EXPOSURE_MASK
            | GDK_SCROLL_MASK
            | GDK_POINTER_MOTION_MASK
            | GDK_BUTTON_PRESS_MASK
            | GDK_BUTTON_RELEASE_MASK
            | GDK_KEY_PRESS_MASK
            | GDK_KEY_RELEASE_MASK
            | gtk_widget_get_events (widget);
    priv->bin_window = gdk_window_new (gtk_widget_get_window(widget), &attributes, attributes_mask);
    gdk_window_set_user_data (priv->bin_window, widget);

#if !GTK_CHECK_VERSION (3, 0, 0)
    /* GTK2: Attach style/background - this breaks 'dark theme version' styles in GTK3     /issues/578    */

    /* This widget is fully reimplementing realize, so must attach a style
     * (nothing is there currently) - there is no need to then call
     * gtk_widget_set_style, however if you do with a non-NULL style, GTK
     * considers the style hardcoded and therefore outside of its inherited 'rc
     * style' system, which results in exo_icon_view_style_set no longer being
     * called on a theme change
     * /issues/627  shows that this correct method of setting the style causes a slowdown (??), so going back to the
     * broken method */
    //widget->style = gtk_style_attach (widget->style, widget->window);
    gtk_widget_set_style( widget, gtk_style_attach(gtk_widget_get_style (widget), gtk_widget_get_window(widget) ) );

    /* However the true widget window background remains black without the below
     * call - the documentation recommends to call gtk_style_set_background,
     * however this has no effect with any requested GtkStateType. Both the
     * ExoIconView's window and presumably the earlier GTK window (??) need to
     * have the background set - if you don't do the earlier window, the widget
     * has a black background prior to loading directory contents - see issue 627 */
    gdk_window_set_background (priv->bin_window, &gtk_widget_get_style (widget)->base[gtk_widget_get_state (widget)]);
    gdk_window_set_background (gtk_widget_get_window (widget), &gtk_widget_get_style (widget)->base[gtk_widget_get_state (widget)]);

#else
    /* GTK3: Adding style class (styling works fine for me without this, but
     * one user so far has reported breakage) */
    gtk_style_context_add_class (gtk_widget_get_style_context (GTK_WIDGET (widget)), GTK_STYLE_CLASS_VIEW);
#endif

    /* map the icons window */
    gdk_window_show (priv->bin_window);
}



static void  exo_icon_view_unrealize (GtkWidget *widget)
{
    ExoIconViewPrivate *priv = EXO_ICON_VIEW (widget)->priv;

    /* drop the icons window */
    gdk_window_set_user_data (priv->bin_window, NULL);
    gdk_window_destroy (priv->bin_window);
    priv->bin_window = NULL;

    /* let GtkWidget destroy children and widget->window */
    if (GTK_WIDGET_CLASS (exo_icon_view_parent_class)->unrealize)
        (*GTK_WIDGET_CLASS (exo_icon_view_parent_class)->unrealize) (widget);
}



static void  exo_icon_view_size_request (GtkWidget      *widget, GtkRequisition *requisition)
{
    const ExoIconViewPrivate *priv = EXO_ICON_VIEW (widget)->priv;
    ExoIconViewChild         *child;
    GtkRequisition            child_requisition;
    GList                    *lp;

    /* well, this is easy */
    requisition->width = priv->width;
    requisition->height = priv->height;

    /* handle the child widgets */
    for (lp = priv->children; lp != NULL; lp = lp->next)
    {
        child = lp->data;
        if (gtk_widget_get_visible (child->widget))
            gtk_widget_size_request (child->widget, &child_requisition);
    }
}



static void  exo_icon_view_allocate_children (ExoIconView *icon_view)
{
    const ExoIconViewPrivate *priv = icon_view->priv;
    const ExoIconViewChild   *child;
    GtkAllocation             allocation;
    const GList              *lp;
    gint                      focus_line_width;
    gint                      focus_padding;

    for (lp = priv->children; lp != NULL; lp = lp->next)
    {
        child = EXO_ICON_VIEW_CHILD (lp->data);

        /* totally ignore our child's requisition */
        if (child->cell < 0)
            allocation = child->item->area;
        else
            allocation = child->item->box[child->cell];

        /* increase the item area by focus width/padding */
        gtk_widget_style_get (GTK_WIDGET (icon_view), "focus-line-width", &focus_line_width, "focus-padding", &focus_padding, NULL);
        allocation.x = MAX (0, allocation.x - (focus_line_width + focus_padding));
        allocation.y = MAX (0, allocation.y - (focus_line_width + focus_padding));
        allocation.width = MIN (priv->width - allocation.x, allocation.width + 2 * (focus_line_width + focus_padding));
        allocation.height = MIN (priv->height - allocation.y, allocation.height + 2 * (focus_line_width + focus_padding));

        /* allocate the area to the child */
        gtk_widget_size_allocate (child->widget, &allocation);
    }
}



static void  exo_icon_view_size_allocate (GtkWidget     *widget, GtkAllocation *allocation)
{
    GtkAdjustment *hadjustment;
    GtkAdjustment *vadjustment;
    ExoIconView   *icon_view = EXO_ICON_VIEW (widget);

    /* apply the new size allocation */
    gtk_widget_set_allocation (widget, allocation);

    /* move/resize the clipping window, the icons window
   * will be handled by exo_icon_view_layout().
   */
    if (gtk_widget_get_realized (widget))
        gdk_window_move_resize (gtk_widget_get_window (widget), MAX(0, allocation->x), MAX(0, allocation->y), allocation->width, allocation->height);

    /* layout the items */
    exo_icon_view_layout (icon_view);

    /* allocate space to the widgets (editing) */
    exo_icon_view_allocate_children (icon_view);

    /* update the horizontal scroll adjustment accordingly */
    hadjustment = icon_view->priv->hadjustment;
    gtk_adjustment_set_page_size (hadjustment, allocation->width);
    gtk_adjustment_set_page_increment (hadjustment, allocation->width * 0.9);
    gtk_adjustment_set_step_increment (hadjustment, allocation->width * 0.1);
    gtk_adjustment_set_lower (hadjustment, 0);
    gtk_adjustment_set_upper (hadjustment, MAX (allocation->width, icon_view->priv->width));
    if (gtk_adjustment_get_value (hadjustment) > gtk_adjustment_get_upper(hadjustment) - gtk_adjustment_get_page_size(hadjustment))
        gtk_adjustment_set_value (hadjustment, MAX (0, gtk_adjustment_get_upper(hadjustment) - gtk_adjustment_get_page_size(hadjustment)));

    /* update the vertical scroll adjustment accordingly */
    vadjustment = icon_view->priv->vadjustment;
    gtk_adjustment_set_page_size (vadjustment, allocation->height);
    gtk_adjustment_set_page_increment (vadjustment, allocation->height * 0.9);
    gtk_adjustment_set_step_increment (vadjustment, allocation->height * 0.1);
    gtk_adjustment_set_lower (vadjustment, 0);
    gtk_adjustment_set_upper (vadjustment, MAX (allocation->height, icon_view->priv->height));
    if (gtk_adjustment_get_value (vadjustment) > gtk_adjustment_get_upper(vadjustment) - gtk_adjustment_get_page_size(vadjustment))
        gtk_adjustment_set_value (vadjustment, MAX (0, gtk_adjustment_get_upper(vadjustment) - gtk_adjustment_get_page_size(vadjustment)));


    /* we need to emit "changed" ourselves */
    gtk_adjustment_changed (hadjustment);
    gtk_adjustment_changed (vadjustment);
}



static void  exo_icon_view_style_set (GtkWidget *widget, GtkStyle  *previous_style)
{
    ExoIconView *icon_view = EXO_ICON_VIEW (widget);

    /* let GtkWidget do its work */
    (*GTK_WIDGET_CLASS (exo_icon_view_parent_class)->style_set) (widget, previous_style);

#if !GTK_CHECK_VERSION (3, 0, 0)
    /* Apply the new style for the bin_window if we're realized - GTK3 handles
     * this on its own, the background colour is wrong if you do this for GTK3 */
    if (gtk_widget_get_realized (widget))
        gdk_window_set_background (icon_view->priv->bin_window, &gtk_widget_get_style(widget)->base[gtk_widget_get_state(widget)]);
#endif
}


#if GTK_CHECK_VERSION (3, 0, 0)
static gboolean  exo_icon_view_draw (GtkWidget    *widget, cairo_t      *cr)
#else
static gboolean  exo_icon_view_expose_event (GtkWidget      *widget, GdkEventExpose *event)
#endif
{
    ExoIconViewDropPosition dest_pos;
    ExoIconViewPrivate     *priv = EXO_ICON_VIEW (widget)->priv;
    ExoIconViewItem        *dest_item = NULL;
    ExoIconViewItem        *item;
#if GTK_CHECK_VERSION (3, 0, 0)
    GtkAllocation           event_area;
#else
    GdkRectangle            event_area = event->area;
#endif
    ExoIconView            *icon_view = EXO_ICON_VIEW (widget);
    GtkTreePath            *path;
    GdkRectangle            rubber_rect;
    const GList            *lp;
    gint                    event_area_last;
    gint                    dest_index = -1;

    /* verify that the expose happened on the icon window */
#if GTK_CHECK_VERSION (3, 0, 0)
    if (!G_UNLIKELY (gtk_cairo_should_draw_window (cr, priv->bin_window)))
        return FALSE;
#else
    if (G_UNLIKELY (event->window != priv->bin_window))
        return FALSE;
#endif

    /* don't handle expose if the layout isn't done yet; the layout
   * method will schedule a redraw when done.
   */
    if (G_UNLIKELY (priv->layout_idle_id != 0))
        return FALSE;

#if !GTK_CHECK_VERSION (3, 0, 0)
    cairo_t                *cr;
    cr = gdk_cairo_create (priv->bin_window);
    cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
#else
    gtk_cairo_transform_to_window (cr, widget, priv->bin_window);
#endif
    cairo_set_line_width (cr, 1);

    /* scroll to the previously remembered path (if any) */
    if (G_UNLIKELY (priv->scroll_to_path != NULL))
    {
        /* grab the path from the reference and invalidate the reference */
        path = gtk_tree_row_reference_get_path (priv->scroll_to_path);
        gtk_tree_row_reference_free (priv->scroll_to_path);
        priv->scroll_to_path = NULL;

        /* check if the reference was still valid */
        if (G_LIKELY (path != NULL))
        {
            /* try to scroll again */
            exo_icon_view_scroll_to_path (icon_view, path, priv->scroll_to_use_align, priv->scroll_to_row_align, priv->scroll_to_col_align);

            /* release the path */
            gtk_tree_path_free (path);
        }
    }

    /* check if we need to draw a drag indicator */
    exo_icon_view_get_drag_dest_item (icon_view, &path, &dest_pos);
    if (G_UNLIKELY (path != NULL))
    {
        dest_index = gtk_tree_path_get_indices (path)[0];
        gtk_tree_path_free (path);
    }

    /* paint the rubberband background */
    if (G_UNLIKELY (priv->doing_rubberband))
    {
        /* calculate the rubberband area */
        rubber_rect.x = MIN (priv->rubberband_x1, priv->rubberband_x2);
        rubber_rect.y = MIN (priv->rubberband_y1, priv->rubberband_y2);
        rubber_rect.width = ABS (priv->rubberband_x1 - priv->rubberband_x2) + 1;
        rubber_rect.height = ABS (priv->rubberband_y1 - priv->rubberband_y2) + 1;

        /* we take advantage of double-buffering here and use only a single
       * draw_rectangle() operation w/o having to take care of clipping.
       */
#if GTK_CHECK_VERSION (3, 0, 0)
        gdk_cairo_set_source_rgba (cr, &priv->rubberband_fill_color);
#else
        gdk_cairo_set_source_color (cr, priv->rubberband_fill_color);
#endif
        cairo_rectangle (cr, rubber_rect.x + 0.5, rubber_rect.y + 0.5, rubber_rect.width - 1, rubber_rect.height - 1);
        cairo_fill (cr);
    }
    cairo_set_operator (cr, CAIRO_OPERATOR_OVER);

    /* determine the last interesting coordinate (depending on the layout mode) */
#if GTK_CHECK_VERSION (3, 0, 0)
    gtk_widget_get_allocation (widget, &event_area);
    gdk_window_get_position (priv->bin_window, &event_area.x, &event_area.y);
    event_area.x = -event_area.x;
    event_area.y = -event_area.y;
#endif
    event_area_last = (priv->layout_mode == EXO_ICON_VIEW_LAYOUT_ROWS)
            ? event_area.y + event_area.height
            : event_area.x + event_area.width;

    /* paint all items that are affected by the expose event */
    for (lp = priv->items; lp != NULL; lp = lp->next)
    {
        /* check if this item is in the visible area */
        item = EXO_ICON_VIEW_ITEM (lp->data);
        if (G_LIKELY (priv->layout_mode == EXO_ICON_VIEW_LAYOUT_ROWS))
        {
            if (item->area.y > event_area_last)
                break;
            else if (item->area.y + item->area.height < event_area.y)
                continue;
        } else {
            if (item->area.x > event_area_last)
                break;
            else if (item->area.x + item->area.width < event_area.x)
                continue;
        }

        /* check if this item needs an update */
#if GTK_CHECK_VERSION (3, 0, 0)
        if (G_LIKELY (gdk_rectangle_intersect(&event_area, &item->area, NULL)))
        {
            exo_icon_view_paint_item (icon_view, item, &event_area, cr, item->area.x, item->area.y, TRUE);
#else
        if (G_LIKELY (gdk_region_rect_in (event->region, &item->area) != GDK_OVERLAP_RECTANGLE_OUT))
        {
            exo_icon_view_paint_item (icon_view, item, &event_area, event->window, item->area.x, item->area.y, TRUE);
#endif
            if (G_UNLIKELY (dest_index >= 0 && dest_item == NULL && dest_index == g_list_index (priv->items, item)))
                dest_item = item;
        }
    }

    /* draw the drag indicator */
    if (G_UNLIKELY (dest_item != NULL))
    {
        switch (dest_pos)
        {
        case EXO_ICON_VIEW_DROP_INTO:
#if GTK_CHECK_VERSION (3, 0, 0)
            gtk_paint_focus (gtk_widget_get_style(widget), cr, gtk_widget_get_state (widget), widget,
                 #else
            gtk_paint_focus (gtk_widget_get_style(widget), priv->bin_window, gtk_widget_get_state (widget), NULL, widget,
                 #endif
                             "iconview-drop-indicator", dest_item->area.x, dest_item->area.y, dest_item->area.width, dest_item->area.height);
            break;

        case EXO_ICON_VIEW_DROP_ABOVE:
#if GTK_CHECK_VERSION (3, 0, 0)
            gtk_paint_focus (gtk_widget_get_style(widget), cr, gtk_widget_get_state (widget), widget,
                 #else
            gtk_paint_focus (gtk_widget_get_style(widget), priv->bin_window, gtk_widget_get_state (widget), NULL, widget,
                 #endif
                             "iconview-drop-indicator", dest_item->area.x, dest_item->area.y - 1, dest_item->area.width, 2);
            break;

        case EXO_ICON_VIEW_DROP_LEFT:
#if GTK_CHECK_VERSION (3, 0, 0)
            gtk_paint_focus (gtk_widget_get_style(widget), cr, gtk_widget_get_state (widget), widget,
                 #else
            gtk_paint_focus (gtk_widget_get_style(widget), priv->bin_window, gtk_widget_get_state (widget), NULL, widget,
                 #endif
                             "iconview-drop-indicator", dest_item->area.x - 1, dest_item->area.y, 2, dest_item->area.height);
            break;

        case EXO_ICON_VIEW_DROP_BELOW:
#if GTK_CHECK_VERSION (3, 0, 0)
            gtk_paint_focus (gtk_widget_get_style(widget), cr, gtk_widget_get_state (widget), widget,
                 #else
            gtk_paint_focus (gtk_widget_get_style(widget), priv->bin_window, gtk_widget_get_state (widget), NULL, widget,
                 #endif
                             "iconview-drop-indicator", dest_item->area.x, dest_item->area.y + dest_item->area.height - 1, dest_item->area.width, 2);
            break;

        case EXO_ICON_VIEW_DROP_RIGHT:
#if GTK_CHECK_VERSION (3, 0, 0)
            gtk_paint_focus (gtk_widget_get_style(widget), cr, gtk_widget_get_state (widget), widget,
                 #else
            gtk_paint_focus (gtk_widget_get_style(widget), priv->bin_window, gtk_widget_get_state (widget), NULL, widget,
                 #endif
                             "iconview-drop-indicator", dest_item->area.x + dest_item->area.width - 1, dest_item->area.y, 2, dest_item->area.height);

        case EXO_ICON_VIEW_NO_DROP:
            break;

        default:
            g_assert_not_reached ();
        }
    }

    /* draw the rubberband border */
    if (G_UNLIKELY (priv->doing_rubberband))
    {
        /* draw the border */
#if GTK_CHECK_VERSION (3, 0, 0)
        gdk_cairo_set_source_rgba (cr, &priv->rubberband_border_color);
#else
        gdk_cairo_set_source_color (cr, priv->rubberband_border_color);
#endif
        cairo_set_line_width (cr, 1);
        cairo_rectangle (cr, rubber_rect.x + 0.5, rubber_rect.y + 0.5, rubber_rect.width - 1, rubber_rect.height - 1);
        cairo_stroke (cr);
    }

#if !GTK_CHECK_VERSION (3, 0, 0)
    cairo_destroy (cr);

    /* let the GtkContainer forward the expose event to all children */
    (*GTK_WIDGET_CLASS (exo_icon_view_parent_class)->expose_event) (widget, event);
#endif

    return FALSE;
}



static gboolean  rubberband_scroll_timeout (gpointer user_data)
{
    GtkAdjustment *adjustment;
    ExoIconView   *icon_view = EXO_ICON_VIEW (user_data);
    gdouble        value;

    GDK_THREADS_ENTER ();

    /* determine the adjustment for the scroll direction */
    adjustment = (icon_view->priv->layout_mode == EXO_ICON_VIEW_LAYOUT_ROWS)
            ? icon_view->priv->vadjustment
            : icon_view->priv->hadjustment;

    /* determine the new scroll value */
    value = MIN (gtk_adjustment_get_value (adjustment) + icon_view->priv->scroll_value_diff, gtk_adjustment_get_upper (adjustment) - gtk_adjustment_get_page_size (adjustment) );

    /* apply the new value */
    gtk_adjustment_set_value (adjustment, value);

    /* update the rubberband */
    exo_icon_view_update_rubberband (icon_view);

    GDK_THREADS_LEAVE ();

    return TRUE;
}


static gboolean  exo_icon_view_motion_notify_event (GtkWidget      *widget, GdkEventMotion *event)
{
    ExoIconViewItem *item;
    GtkAllocation    allocation;
    ExoIconView     *icon_view = EXO_ICON_VIEW (widget);
    GdkCursor       *cursor;
    gint             size;
    gint             abs;

    exo_icon_view_maybe_begin_drag (icon_view, event);

    gtk_widget_get_allocation (widget, &allocation);

    if (icon_view->priv->doing_rubberband)
    {
        exo_icon_view_update_rubberband (widget);

        if (icon_view->priv->layout_mode == EXO_ICON_VIEW_LAYOUT_ROWS)
        {
            abs = event->y - icon_view->priv->height *
                    (gtk_adjustment_get_value (icon_view->priv->vadjustment) /
                     (gtk_adjustment_get_upper (icon_view->priv->vadjustment) -
                      gtk_adjustment_get_lower (icon_view->priv->vadjustment)));

            size = allocation.height;
        } else {
            abs = event->x - icon_view->priv->width *
                    (gtk_adjustment_get_value (icon_view->priv->hadjustment) /
                     (gtk_adjustment_get_upper (icon_view->priv->hadjustment) -
                      gtk_adjustment_get_lower (icon_view->priv->hadjustment)));

            size = allocation.width;
        }

        if (abs < 0 || abs > size)
        {
            if (abs < 0)
                icon_view->priv->scroll_value_diff = abs;
            else
                icon_view->priv->scroll_value_diff = abs - size;
            icon_view->priv->event_last_x = event->x;
            icon_view->priv->event_last_y = event->y;

            if (icon_view->priv->scroll_timeout_id == 0)
                icon_view->priv->scroll_timeout_id = g_timeout_add (30, rubberband_scroll_timeout, icon_view);
        } else {
            remove_scroll_timeout (icon_view);
        }
    } else {
        item = exo_icon_view_get_item_at_coords (icon_view, event->x, event->y, TRUE, NULL);
        if (item != icon_view->priv->prelit_item)
        {
            if (G_LIKELY (icon_view->priv->prelit_item != NULL))
                exo_icon_view_queue_draw_item (icon_view, icon_view->priv->prelit_item);
            icon_view->priv->prelit_item = item;
            if (G_LIKELY (item != NULL))
                exo_icon_view_queue_draw_item (icon_view, item);

            /* check if we are in single click mode right now */
            if (G_UNLIKELY (icon_view->priv->single_click))
            {
                /* display a hand cursor when pointer is above an item */
                if (G_LIKELY (item != NULL))
                {
                    /* hand2 seems to be what we should use */
                    cursor = gdk_cursor_new (GDK_HAND2);
                    gdk_window_set_cursor (event->window, cursor);
                    gdk_cursor_unref (cursor);
                } else {
                    /* reset the cursor */
                    gdk_window_set_cursor (event->window, NULL);
                }

                /* check if autoselection is enabled */
                if (G_LIKELY (icon_view->priv->single_click_timeout > 0))
                {
                    /* drop any running timeout */
                    if (G_LIKELY (icon_view->priv->single_click_timeout_id != 0))
                        g_source_remove (icon_view->priv->single_click_timeout_id);

                    /* remember the current event state */
                    icon_view->priv->single_click_timeout_state = event->state;

                    /* schedule a new timeout */
                    icon_view->priv->single_click_timeout_id = g_timeout_add_full (G_PRIORITY_LOW, icon_view->priv->single_click_timeout,
                                                                                   exo_icon_view_single_click_timeout, icon_view,
                                                                                   exo_icon_view_single_click_timeout_destroy);
                }
            }
        }
    }

    return TRUE;
}



static void  exo_icon_view_remove (GtkContainer *container, GtkWidget    *widget)
{
    ExoIconViewChild *child;
    ExoIconView      *icon_view = EXO_ICON_VIEW (container);
    GList            *lp;

    for (lp = icon_view->priv->children; lp != NULL; lp = lp->next)
    {
        child = lp->data;
        if (G_LIKELY (child->widget == widget))
        {
            icon_view->priv->children = g_list_delete_link (icon_view->priv->children, lp);
            gtk_widget_unparent (widget);
            _exo_slice_free (ExoIconViewChild, child);
            return;
        }
    }
}



static void  exo_icon_view_forall (GtkContainer *container, gboolean      include_internals, GtkCallback   callback, gpointer      callback_data)
{
    ExoIconView *icon_view = EXO_ICON_VIEW (container);
    GList       *lp;

    for (lp = icon_view->priv->children; lp != NULL; lp = lp->next)
        (*callback) (((ExoIconViewChild *) lp->data)->widget, callback_data);
}



static void  exo_icon_view_item_activate_cell (ExoIconView         *icon_view, ExoIconViewItem     *item, ExoIconViewCellInfo *info, GdkEvent            *event)
{
    GtkCellRendererMode mode;
    GdkRectangle        cell_area;
    GtkTreePath        *path;
    gboolean            visible;
    gchar              *path_string;

    exo_icon_view_set_cell_data (icon_view, item);

    g_object_get (G_OBJECT (info->cell), "visible", &visible, "mode", &mode, NULL);

    if (G_UNLIKELY (visible && mode == GTK_CELL_RENDERER_MODE_ACTIVATABLE))
    {
        exo_icon_view_get_cell_area (icon_view, item, info, &cell_area);

        path = gtk_tree_path_new_from_indices (g_list_index (icon_view->priv->items, item), -1);
        path_string = gtk_tree_path_to_string (path);
        gtk_tree_path_free (path);

        gtk_cell_renderer_activate (info->cell, event, GTK_WIDGET (icon_view), path_string, &cell_area, &cell_area, 0);

        g_free (path_string);
    }
}



static void  exo_icon_view_put (ExoIconView     *icon_view, GtkWidget       *widget, ExoIconViewItem *item, gint             cell)
{
    ExoIconViewChild *child;

    /* allocate the new child */
    child = _exo_slice_new (ExoIconViewChild);
    child->widget = widget;
    child->item = item;
    child->cell = cell;

    /* hook up the child */
    icon_view->priv->children = g_list_append (icon_view->priv->children, child);

    /* setup the parent for the child */
    if (gtk_widget_get_realized (GTK_WIDGET (icon_view)))
        gtk_widget_set_parent_window (child->widget, icon_view->priv->bin_window);
    gtk_widget_set_parent (widget, GTK_WIDGET (icon_view));
}



static void  exo_icon_view_remove_widget (GtkCellEditable *editable, ExoIconView     *icon_view)
{
    ExoIconViewItem *item;
    GList           *lp;

    if (G_LIKELY (icon_view->priv->edited_item != NULL))
    {
        item = icon_view->priv->edited_item;
        icon_view->priv->edited_item = NULL;
        icon_view->priv->editable = NULL;

        for (lp = icon_view->priv->cell_list; lp != NULL; lp = lp->next)
            ((ExoIconViewCellInfo *) lp->data)->editing = FALSE;

        if (gtk_widget_has_focus (GTK_WIDGET (editable)))
            gtk_widget_grab_focus (GTK_WIDGET (icon_view));

        g_signal_handlers_disconnect_by_func (editable, exo_icon_view_remove_widget, icon_view);
        gtk_container_remove (GTK_CONTAINER (icon_view), GTK_WIDGET (editable));

        exo_icon_view_queue_draw_item (icon_view, item);
    }
}



static void  exo_icon_view_start_editing (ExoIconView         *icon_view, ExoIconViewItem     *item, ExoIconViewCellInfo *info, GdkEvent            *event)
{
    GtkCellRendererMode mode;
    GtkCellEditable    *editable;
    GdkRectangle        cell_area;
    GtkTreePath        *path;
    gboolean            visible;
    gchar              *path_string;

    /* setup cell data for the given item */
    exo_icon_view_set_cell_data (icon_view, item);

    /* check if the cell is visible and editable (given the updated cell data) */
    g_object_get (info->cell, "visible", &visible, "mode", &mode, NULL);
    if (G_LIKELY (visible && mode == GTK_CELL_RENDERER_MODE_EDITABLE))
    {
        /* draw keyboard focus while editing */
        EXO_ICON_VIEW_SET_FLAG (icon_view, EXO_ICON_VIEW_DRAW_KEYFOCUS);

        /* determine the cell area */
        exo_icon_view_get_cell_area (icon_view, item, info, &cell_area);

        /* determine the tree path */
        path = gtk_tree_path_new_from_indices (g_list_index (icon_view->priv->items, item), -1);
        path_string = gtk_tree_path_to_string (path);
        gtk_tree_path_free (path);

        /* allocate the editable from the cell renderer */
        editable = gtk_cell_renderer_start_editing (info->cell, event, GTK_WIDGET (icon_view), path_string, &cell_area, &cell_area, 0);

        /* ugly hack, but works */
        if (g_object_class_find_property (G_OBJECT_GET_CLASS (editable), "has-frame") != NULL)
            g_object_set (editable, "has-frame", TRUE, NULL);

        /* setup the editing widget */
        icon_view->priv->edited_item = item;
        icon_view->priv->editable = editable;
        info->editing = TRUE;

        exo_icon_view_put (icon_view, GTK_WIDGET (editable), item, info->position);
        gtk_cell_editable_start_editing (GTK_CELL_EDITABLE (editable), (GdkEvent *)event);
        gtk_widget_grab_focus (GTK_WIDGET (editable));
        g_signal_connect (G_OBJECT (editable), "remove-widget", G_CALLBACK (exo_icon_view_remove_widget), icon_view);

        /* cleanup */
        g_free (path_string);
    }
}



static void  exo_icon_view_stop_editing (ExoIconView *icon_view, gboolean     cancel_editing)
{
    ExoIconViewItem *item;
    GtkCellRenderer *cell = NULL;
    GList           *lp;

    if (icon_view->priv->edited_item == NULL)
        return;

    /*
   * This is very evil. We need to do this, because
   * gtk_cell_editable_editing_done may trigger exo_icon_view_row_changed
   * later on. If exo_icon_view_row_changed notices
   * icon_view->priv->edited_item != NULL, it'll call
   * exo_icon_view_stop_editing again. Bad things will happen then.
   *
   * Please read that again if you intend to modify anything here.
   */

    item = icon_view->priv->edited_item;
    icon_view->priv->edited_item = NULL;

    for (lp = icon_view->priv->cell_list; lp != NULL; lp = lp->next)
    {
        ExoIconViewCellInfo *info = lp->data;
        if (info->editing)
        {
            cell = info->cell;
            break;
        }
    }

    if (G_UNLIKELY (cell == NULL))
        return;

    gtk_cell_renderer_stop_editing (cell, cancel_editing);
    if (G_LIKELY (!cancel_editing))
        gtk_cell_editable_editing_done (icon_view->priv->editable);

    icon_view->priv->edited_item = item;

    gtk_cell_editable_remove_widget (icon_view->priv->editable);
}



static gboolean  exo_icon_view_button_press_event (GtkWidget      *widget, GdkEventButton *event)
{
    ExoIconViewCellInfo *info = NULL;
    GtkCellRendererMode  mode;
    ExoIconViewItem     *item;
    ExoIconView         *icon_view;
    GtkTreePath         *path;
    gboolean             dirty = FALSE;
    gint                 cursor_cell;

    icon_view = EXO_ICON_VIEW (widget);

    if (event->window != icon_view->priv->bin_window)
        return FALSE;

    /* stop any pending "single-click-timeout" */
    if (G_UNLIKELY (icon_view->priv->single_click_timeout_id != 0))
        g_source_remove (icon_view->priv->single_click_timeout_id);

    if (G_UNLIKELY (!gtk_widget_has_focus (widget)))
        gtk_widget_grab_focus (widget);

    if (event->button == 1 && event->type == GDK_BUTTON_PRESS)
    {
        item = exo_icon_view_get_item_at_coords (icon_view, event->x, event->y, TRUE, &info);
        if (item != NULL)
        {
            g_object_get (info->cell, "mode", &mode, NULL);

            if (mode == GTK_CELL_RENDERER_MODE_ACTIVATABLE ||
                    mode == GTK_CELL_RENDERER_MODE_EDITABLE)
                cursor_cell = g_list_index (icon_view->priv->cell_list, info);
            else
                cursor_cell = -1;

            exo_icon_view_scroll_to_item (icon_view, item);

            if (icon_view->priv->selection_mode == GTK_SELECTION_NONE)
            {
                exo_icon_view_set_cursor_item (icon_view, item, cursor_cell);
            }
            else if (icon_view->priv->selection_mode == GTK_SELECTION_MULTIPLE &&
                     (event->state & GDK_SHIFT_MASK))
            {
                if (!(event->state & GDK_CONTROL_MASK))
                    exo_icon_view_unselect_all_internal (icon_view);

                exo_icon_view_set_cursor_item (icon_view, item, cursor_cell);
                if (!icon_view->priv->anchor_item)
                    icon_view->priv->anchor_item = item;
                else
                    exo_icon_view_select_all_between (icon_view, icon_view->priv->anchor_item, item);
                dirty = TRUE;
            } else {
                if ((icon_view->priv->selection_mode == GTK_SELECTION_MULTIPLE ||
                     ((icon_view->priv->selection_mode == GTK_SELECTION_SINGLE) && item->selected)) &&
                        (event->state & GDK_CONTROL_MASK))
                {
                    item->selected = !item->selected;
                    exo_icon_view_queue_draw_item (icon_view, item);
                    dirty = TRUE;
                } else {
                    if (!item->selected)
                    {
                        exo_icon_view_unselect_all_internal (icon_view);

                        item->selected = TRUE;
                        exo_icon_view_queue_draw_item (icon_view, item);
                        dirty = TRUE;
                    }
                }
                exo_icon_view_set_cursor_item (icon_view, item, cursor_cell);
                icon_view->priv->anchor_item = item;
            }

            /* Save press to possibly begin a drag */
            if (icon_view->priv->pressed_button < 0)
            {
                icon_view->priv->pressed_button = event->button;
                icon_view->priv->press_start_x = event->x;
                icon_view->priv->press_start_y = event->y;
            }

            //if (G_LIKELY (icon_view->priv->last_single_clicked == NULL))   //sfm disabled
            icon_view->priv->last_single_clicked = item;

            /* cancel the current editing, if it exists */
            exo_icon_view_stop_editing (icon_view, TRUE);

            if (mode == GTK_CELL_RENDERER_MODE_ACTIVATABLE)
                exo_icon_view_item_activate_cell (icon_view, item, info, (GdkEvent *)event);
            else if (mode == GTK_CELL_RENDERER_MODE_EDITABLE)
                exo_icon_view_start_editing (icon_view, item, info, (GdkEvent *)event);
        } else {
            /* cancel the current editing, if it exists */
            exo_icon_view_stop_editing (icon_view, TRUE);

            if (icon_view->priv->selection_mode != GTK_SELECTION_BROWSE &&
                    !(event->state & GDK_CONTROL_MASK))
            {
                dirty = exo_icon_view_unselect_all_internal (icon_view);
            }

            if (icon_view->priv->selection_mode == GTK_SELECTION_MULTIPLE)
                exo_icon_view_start_rubberbanding (icon_view, event->x, event->y);
        }
    }
    else if (event->button == 1 && event->type == GDK_2BUTTON_PRESS)
    {
        /* ignore double-click events in single-click mode */
        if (G_LIKELY (!icon_view->priv->single_click))
        {
            item = exo_icon_view_get_item_at_coords (icon_view, event->x, event->y, TRUE, NULL);
            if (G_LIKELY (item != NULL))
            {
                path = gtk_tree_path_new_from_indices (g_list_index (icon_view->priv->items, item), -1);
                exo_icon_view_item_activated (icon_view, path);
                gtk_tree_path_free (path);
            }
        }

        icon_view->priv->last_single_clicked = NULL;
        icon_view->priv->pressed_button = -1;
    }

    /* grab focus and stop drawing the keyboard focus indicator on single clicks */
    if (G_LIKELY (event->type != GDK_2BUTTON_PRESS && event->type != GDK_3BUTTON_PRESS))
    {
        if (!gtk_widget_has_focus (GTK_WIDGET (icon_view)))
            gtk_widget_grab_focus (GTK_WIDGET (icon_view));
        EXO_ICON_VIEW_UNSET_FLAG (icon_view, EXO_ICON_VIEW_DRAW_KEYFOCUS);
    }

    if (dirty)
        g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);

    return event->button == 1;
}



static gboolean  exo_icon_view_button_release_event (GtkWidget      *widget, GdkEventButton *event)
{
    ExoIconViewItem *item;
    ExoIconView     *icon_view = EXO_ICON_VIEW (widget);
    GtkTreePath     *path;

    if (icon_view->priv->pressed_button == event->button)
    {
        /* check if we're in single click mode */
        if (G_UNLIKELY (icon_view->priv->single_click && (event->state & (GDK_CONTROL_MASK | GDK_SHIFT_MASK)) == 0))
        {
            /* determine the item at the mouse coords and check if this is the last single clicked one */
            item = exo_icon_view_get_item_at_coords (icon_view, event->x, event->y, TRUE, NULL);
            if (G_LIKELY (item != NULL && item == icon_view->priv->last_single_clicked))
            {
                /* emit an "item-activated" signal for this item */
                path = gtk_tree_path_new_from_indices (g_list_index (icon_view->priv->items, item), -1);
                exo_icon_view_item_activated (icon_view, path);
                gtk_tree_path_free (path);
            }

            /* reset the last single clicked item */
            icon_view->priv->last_single_clicked = NULL;
        }

        /* reset the pressed_button state */
        icon_view->priv->pressed_button = -1;
    }

    exo_icon_view_stop_rubberbanding (icon_view);

    remove_scroll_timeout (icon_view);

    return TRUE;
}



static gboolean  exo_icon_view_scroll_event (GtkWidget      *widget, GdkEventScroll *event)
{
    GtkAdjustment *adjustment;
    ExoIconView   *icon_view = EXO_ICON_VIEW (widget);
    gdouble        delta;
    gdouble        value;

    /* we don't care for scroll events in "rows" layout mode, as
   * that's completely handled by GtkScrolledWindow.
   */
    if (icon_view->priv->layout_mode != EXO_ICON_VIEW_LAYOUT_COLS)
        return FALSE;

    /* also, we don't care for anything but Up/Down, as
   * everything else will be handled by GtkScrolledWindow.
   */
    if (event->direction != GDK_SCROLL_UP && event->direction != GDK_SCROLL_DOWN)
        return FALSE;

    /* determine the horizontal adjustment */
    adjustment = icon_view->priv->hadjustment;

    /* determine the scroll delta */
    delta = pow (gtk_adjustment_get_page_size (adjustment), 2.0 / 3.0);
    delta = (event->direction == GDK_SCROLL_UP) ? -delta : delta;

    /* apply the new adjustment value */
    value = CLAMP (gtk_adjustment_get_value (adjustment) + delta, gtk_adjustment_get_lower (adjustment), gtk_adjustment_get_upper (adjustment) - gtk_adjustment_get_page_size (adjustment));
    gtk_adjustment_set_value (adjustment, value);

    return TRUE;
}



static gboolean  exo_icon_view_key_press_event (GtkWidget   *widget, GdkEventKey *event)
{
    ExoIconView *icon_view = EXO_ICON_VIEW (widget);
    GdkScreen   *screen;
    GdkEvent    *new_event;
    gboolean     retval;
    gulong       popup_menu_id;
    gchar       *new_text;
    gchar       *old_text;

    /* let the parent class handle the key bindings and stuff */
    if ((*GTK_WIDGET_CLASS (exo_icon_view_parent_class)->key_press_event) (widget, event))
        return TRUE;

    /* check if typeahead search is enabled */
    if (G_UNLIKELY (!icon_view->priv->enable_search))
        return FALSE;

    exo_icon_view_search_ensure_directory (icon_view);

    /* make sure the search window is realized */
    gtk_widget_realize (icon_view->priv->search_window);

    /* make a copy of the current text */
    old_text = gtk_editable_get_chars (GTK_EDITABLE (icon_view->priv->search_entry), 0, -1);

    /* make sure we don't accidently popup the context menu */
    popup_menu_id = g_signal_connect (G_OBJECT (icon_view->priv->search_entry), "popup-menu", G_CALLBACK (gtk_true), NULL);

    /* move the search window offscreen */
    screen = gtk_widget_get_screen (GTK_WIDGET (icon_view));
    gtk_window_move (GTK_WINDOW (icon_view->priv->search_window), gdk_screen_get_width (screen) + 1, gdk_screen_get_height (screen) + 1);
    gtk_widget_show (icon_view->priv->search_window);

    /* allocate a new event to forward */
    new_event = gdk_event_copy ((GdkEvent *) event);
    g_object_unref (G_OBJECT (new_event->key.window));
    new_event->key.window = g_object_ref (G_OBJECT (gtk_widget_get_window (GTK_WIDGET(icon_view->priv->search_entry))));

    /* send the event to the search entry. If the "preedit-changed" signal is
   * emitted during this event, priv->search_imcontext_changed will be set.
   */
    icon_view->priv->search_imcontext_changed = FALSE;
    retval = gtk_widget_event (icon_view->priv->search_entry, new_event);
    gtk_widget_hide (icon_view->priv->search_window);

    /* release the temporary event */
    gdk_event_free (new_event);

    /* disconnect the popup menu prevention */
    g_signal_handler_disconnect (G_OBJECT (icon_view->priv->search_entry), popup_menu_id);

    /* we check to make sure that the entry tried to handle the,  and that the text has actually changed.   */
    new_text = gtk_editable_get_chars (GTK_EDITABLE (icon_view->priv->search_entry), 0, -1);
    retval = retval && (strcmp (new_text, old_text) != 0);
    g_free (old_text);
    g_free (new_text);

    /* if we're in a preedit or the text was modified */
    if (icon_view->priv->search_imcontext_changed || retval)
    {
        if (exo_icon_view_search_start (icon_view, FALSE))
        {
            gtk_widget_grab_focus (GTK_WIDGET (icon_view));
            return TRUE;
        } else {
            gtk_entry_set_text (GTK_ENTRY (icon_view->priv->search_entry), "");
            return FALSE;
        }
    }

    return FALSE;
}



static gboolean  exo_icon_view_focus_out_event (GtkWidget     *widget, GdkEventFocus *event)
{
    ExoIconView *icon_view = EXO_ICON_VIEW (widget);

    /* be sure to cancel any single-click timeout */
    if (G_UNLIKELY (icon_view->priv->single_click_timeout_id != 0))
        g_source_remove (icon_view->priv->single_click_timeout_id);

    /* reset the cursor if we're still realized */
    if (G_LIKELY (icon_view->priv->bin_window != NULL))
        gdk_window_set_cursor (icon_view->priv->bin_window, NULL);

    /* destroy the interactive search dialog */
    if (G_UNLIKELY (icon_view->priv->search_window != NULL))
        exo_icon_view_search_dialog_hide (icon_view->priv->search_window, icon_view);

    /* schedule a redraw with the new focus state */
    gtk_widget_queue_draw (widget);

    return FALSE;
}



static gboolean  exo_icon_view_leave_notify_event (GtkWidget        *widget, GdkEventCrossing *event)
{
    /* reset cursor to default */
    if (gtk_widget_get_realized (widget))
        gdk_window_set_cursor (gtk_widget_get_window (widget), NULL);

    /* call the parent's leave_notify_event (if any) */
    if (GTK_WIDGET_CLASS (exo_icon_view_parent_class)->leave_notify_event != NULL)
        return (*GTK_WIDGET_CLASS (exo_icon_view_parent_class)->leave_notify_event) (widget, event);

    /* other signal handlers may be invoked */
    return FALSE;
}



static void  exo_icon_view_update_rubberband (gpointer data)
{
    ExoIconView *icon_view;
    gint x, y;
    GdkRectangle old_area;
    GdkRectangle new_area;
    GdkRectangle common;
#if GTK_CHECK_VERSION (3, 0, 0)
    cairo_region_t *invalid_region;
#else
    GdkRegion *invalid_region;
#endif

    icon_view = EXO_ICON_VIEW (data);

    gdk_window_get_pointer (icon_view->priv->bin_window, &x, &y, NULL);

    x = MAX (x, 0);
    y = MAX (y, 0);

    old_area.x = MIN (icon_view->priv->rubberband_x1, icon_view->priv->rubberband_x2);
    old_area.y = MIN (icon_view->priv->rubberband_y1, icon_view->priv->rubberband_y2);
    old_area.width = ABS (icon_view->priv->rubberband_x2 -
                          icon_view->priv->rubberband_x1) + 1;
    old_area.height = ABS (icon_view->priv->rubberband_y2 -
                           icon_view->priv->rubberband_y1) + 1;

    new_area.x = MIN (icon_view->priv->rubberband_x1, x);
    new_area.y = MIN (icon_view->priv->rubberband_y1, y);
    new_area.width = ABS (x - icon_view->priv->rubberband_x1) + 1;
    new_area.height = ABS (y - icon_view->priv->rubberband_y1) + 1;

#if GTK_CHECK_VERSION (3, 0, 0)
    invalid_region = cairo_region_create_rectangle ((cairo_rectangle_int_t *)&old_area);
    cairo_region_union_rectangle (invalid_region, (cairo_rectangle_int_t *)&new_area);
#else
    invalid_region = gdk_region_rectangle (&old_area);
    gdk_region_union_with_rect (invalid_region, &new_area);
#endif

    gdk_rectangle_intersect (&old_area, &new_area, &common);
    if (common.width > 2 && common.height > 2)
    {
#if GTK_CHECK_VERSION (3, 0, 0)
        cairo_region_t *common_region;
#else
        GdkRegion *common_region;
#endif

        /* make sure the border is invalidated */
        common.x += 1;
        common.y += 1;
        common.width -= 2;
        common.height -= 2;

#if GTK_CHECK_VERSION (3, 0, 0)
        common_region = cairo_region_create_rectangle ((cairo_rectangle_int_t *)&common);
        cairo_region_subtract (invalid_region, common_region);

        cairo_region_destroy (common_region);
#else
        common_region = gdk_region_rectangle (&common);

        gdk_region_subtract (invalid_region, common_region);
        gdk_region_destroy (common_region);
#endif
    }

    gdk_window_invalidate_region (icon_view->priv->bin_window, invalid_region, TRUE);

#if GTK_CHECK_VERSION (3, 0, 0)
    cairo_region_destroy (invalid_region);
#else
    gdk_region_destroy (invalid_region);
#endif

    icon_view->priv->rubberband_x2 = x;
    icon_view->priv->rubberband_y2 = y;

    exo_icon_view_update_rubberband_selection (icon_view);
}



static void  exo_icon_view_start_rubberbanding (ExoIconView  *icon_view, gint          x, gint          y)
{
    const GdkColor *background_color;
    GdkColor       *color;
    guchar          alpha;
    gpointer        drag_data;
    GList          *items;

    /* be sure to disable any previously active rubberband */
    exo_icon_view_stop_rubberbanding (icon_view);

    for (items = icon_view->priv->items; items; items = items->next)
    {
        ExoIconViewItem *item = items->data;
        item->selected_before_rubberbanding = item->selected;
    }

    icon_view->priv->rubberband_x1 = x;
    icon_view->priv->rubberband_y1 = y;
    icon_view->priv->rubberband_x2 = x;
    icon_view->priv->rubberband_y2 = y;

    icon_view->priv->doing_rubberband = TRUE;

#if GTK_CHECK_VERSION (3, 0, 0)
    GtkStyleContext *style_ctx = gtk_widget_get_style_context (GTK_WIDGET (icon_view));
    gtk_style_context_save (style_ctx);
    gtk_style_context_add_class (style_ctx, GTK_STYLE_CLASS_RUBBERBAND);

    /* set the rubberband border color */
    gtk_style_context_get_border_color (style_ctx, GTK_STATE_FLAG_NORMAL, &icon_view->priv->rubberband_border_color);

    /* set the rubberband fill color */
    gtk_style_context_get_background_color (style_ctx, GTK_STATE_FLAG_NORMAL, &icon_view->priv->rubberband_fill_color);

    gtk_style_context_restore (style_ctx);
#else
    /* determine the border color */
    gtk_widget_style_get (GTK_WIDGET (icon_view), "selection-box-color", &color, NULL);
    if (G_LIKELY (color == NULL))
        color = gdk_color_copy (&gtk_widget_get_style(GTK_WIDGET (icon_view))->base[GTK_STATE_SELECTED]);

    /* set the rubberband border color */
    icon_view->priv->rubberband_border_color = color;

    /* determine the fill color and alpha setting */
    gtk_widget_style_get (GTK_WIDGET (icon_view), "selection-box-color", &color, "selection-box-alpha", &alpha, NULL);
    if (G_LIKELY (color == NULL))
        color = gdk_color_copy (&gtk_widget_get_style(GTK_WIDGET (icon_view))->base[GTK_STATE_SELECTED]);

    /* calculate the fill color (based on the fill color, the alpha setting and the background color) */
    background_color = &gtk_widget_get_style(GTK_WIDGET (icon_view))->base[GTK_STATE_NORMAL];
    color->red = ((color->red * (alpha / 255.0)) + (background_color->red * (255.0 - alpha / 255.0)));
    color->green = ((color->green * (alpha / 255.0)) + (background_color->green * (255.0 - alpha / 255.0)));
    color->blue = ((color->blue * (alpha / 255.0)) + (background_color->blue * (255.0 - alpha / 255.0)));

    /* set the rubberband background color */
    icon_view->priv->rubberband_fill_color = color;
#endif

    gtk_grab_add (GTK_WIDGET (icon_view));

    /* be sure to disable Gtk+ DnD callbacks, because else rubberbanding will be interrupted */
    drag_data = g_object_get_data (G_OBJECT (icon_view), I_("gtk-site-data"));
    if (G_LIKELY (drag_data != NULL))
    {
        g_signal_handlers_block_matched (G_OBJECT (icon_view), G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, drag_data);
    }
}



static void  exo_icon_view_stop_rubberbanding (ExoIconView *icon_view)
{
    gpointer drag_data;

    if (G_LIKELY (icon_view->priv->doing_rubberband))
    {
        icon_view->priv->doing_rubberband = FALSE;
        gtk_grab_remove (GTK_WIDGET (icon_view));
        gtk_widget_queue_draw (GTK_WIDGET (icon_view));

#if !GTK_CHECK_VERSION (3, 0, 0)
        /* Free the colors for drawing the rubberband */
        gdk_color_free (icon_view->priv->rubberband_border_color);
        gdk_color_free (icon_view->priv->rubberband_fill_color);
        icon_view->priv->rubberband_border_color = NULL;
        icon_view->priv->rubberband_fill_color = NULL;
#endif

        /* re-enable Gtk+ DnD callbacks again */
        drag_data = g_object_get_data (G_OBJECT (icon_view), I_("gtk-site-data"));
        if (G_LIKELY (drag_data != NULL))
        {
            g_signal_handlers_unblock_matched (G_OBJECT (icon_view), G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, drag_data);
        }
    }
}



static void  exo_icon_view_update_rubberband_selection (ExoIconView *icon_view)
{
    ExoIconViewItem *item;
    gboolean         selected;
    gboolean         changed = FALSE;
    gboolean         is_in;
    GList           *lp;
    gint             x, y;
    gint             width;
    gint             height;

    /* determine the new rubberband area */
    x = MIN (icon_view->priv->rubberband_x1, icon_view->priv->rubberband_x2);
    y = MIN (icon_view->priv->rubberband_y1, icon_view->priv->rubberband_y2);
    width = ABS (icon_view->priv->rubberband_x1 - icon_view->priv->rubberband_x2);
    height = ABS (icon_view->priv->rubberband_y1 - icon_view->priv->rubberband_y2);

    /* check all items */
    for (lp = icon_view->priv->items; lp != NULL; lp = lp->next)
    {
        item = EXO_ICON_VIEW_ITEM (lp->data);

        is_in = exo_icon_view_item_hit_test (icon_view, item, x, y, width, height);

        selected = is_in ^ item->selected_before_rubberbanding;

        if (G_UNLIKELY (item->selected != selected))
        {
            changed = TRUE;
            item->selected = selected;
            exo_icon_view_queue_draw_item (icon_view, item);
        }
    }

    if (G_LIKELY (changed))
        g_signal_emit (G_OBJECT (icon_view), icon_view_signals[SELECTION_CHANGED], 0);
}



static gboolean  exo_icon_view_item_hit_test (ExoIconView      *icon_view, ExoIconViewItem  *item, gint              x, gint              y, gint              width, gint              height)
{
    GList *l;
    GdkRectangle box;

    for (l = icon_view->priv->cell_list; l; l = l->next)
    {
        ExoIconViewCellInfo *info = (ExoIconViewCellInfo *)l->data;

        if (!gtk_cell_renderer_get_visible (info->cell))
            continue;

        box = item->box[info->position];

        if (MIN (x + width, box.x + box.width) - MAX (x, box.x) > 0 &&
                MIN (y + height, box.y + box.height) - MAX (y, box.y) > 0)
            return TRUE;
    }

    return FALSE;
}



static gboolean  exo_icon_view_unselect_all_internal (ExoIconView  *icon_view)
{
    ExoIconViewItem *item;
    gboolean         dirty = FALSE;
    GList           *lp;

    if (G_LIKELY (icon_view->priv->selection_mode != GTK_SELECTION_NONE))
    {
        for (lp = icon_view->priv->items; lp != NULL; lp = lp->next)
        {
            item = EXO_ICON_VIEW_ITEM (lp->data);
            if (item->selected)
            {
                dirty = TRUE;
                item->selected = FALSE;
                exo_icon_view_queue_draw_item (icon_view, item);
            }
        }
    }

    return dirty;
}


#if GTK_CHECK_VERSION (3, 0, 0)
static void  exo_icon_view_set_hadjustment (ExoIconView   *icon_view, GtkAdjustment *hadj)
{
    if (hadj && icon_view->priv->hadjustment == hadj)
        return;

    if (icon_view->priv->hadjustment)
    {
        g_signal_handlers_disconnect_matched (icon_view->priv->hadjustment, G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, icon_view);
        g_object_unref (icon_view->priv->hadjustment);
    }

    if (!hadj)
        hadj = gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0);

    icon_view->priv->hadjustment = g_object_ref_sink (G_OBJECT (hadj));

    g_signal_connect (icon_view->priv->hadjustment, "value-changed", G_CALLBACK (exo_icon_view_adjustment_changed), icon_view);

    if (icon_view->priv->vadjustment)
        exo_icon_view_adjustment_changed (NULL, icon_view);
}

static void  exo_icon_view_set_vadjustment (ExoIconView   *icon_view, GtkAdjustment *vadj)
{
    if (vadj && icon_view->priv->vadjustment == vadj)
        return;

    if (icon_view->priv->vadjustment)
    {
        g_signal_handlers_disconnect_matched (icon_view->priv->vadjustment, G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, icon_view);
        g_object_unref (icon_view->priv->vadjustment);
    }

    if (!vadj)
        vadj = gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0);

    icon_view->priv->vadjustment = g_object_ref_sink (G_OBJECT (vadj));

    g_signal_connect (icon_view->priv->vadjustment, "value-changed", G_CALLBACK (exo_icon_view_adjustment_changed), icon_view);

    if (icon_view->priv->hadjustment)
        exo_icon_view_adjustment_changed (NULL, icon_view);
}
#else
static void  exo_icon_view_set_adjustments (ExoIconView   *icon_view, GtkAdjustment *hadj, GtkAdjustment *vadj)
{
    gboolean need_adjust = FALSE;

    if (hadj)
        _exo_return_if_fail (GTK_IS_ADJUSTMENT (hadj));
    else
        hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
    if (vadj)
        _exo_return_if_fail (GTK_IS_ADJUSTMENT (vadj));
    else
        vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));

    if (icon_view->priv->hadjustment && (icon_view->priv->hadjustment != hadj))
    {
        g_signal_handlers_disconnect_matched (icon_view->priv->hadjustment, G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, icon_view);
        g_object_unref (icon_view->priv->hadjustment);
    }

    if (icon_view->priv->vadjustment && (icon_view->priv->vadjustment != vadj))
    {
        g_signal_handlers_disconnect_matched (icon_view->priv->vadjustment, G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, icon_view);
        g_object_unref (icon_view->priv->vadjustment);
    }

    if (icon_view->priv->hadjustment != hadj)
    {
        icon_view->priv->hadjustment = hadj;
        g_object_ref (icon_view->priv->hadjustment);
        g_object_ref_sink (G_OBJECT (icon_view->priv->hadjustment));

        g_signal_connect (icon_view->priv->hadjustment, "value-changed", G_CALLBACK (exo_icon_view_adjustment_changed), icon_view);
        need_adjust = TRUE;
    }

    if (icon_view->priv->vadjustment != vadj)
    {
        icon_view->priv->vadjustment = vadj;
        g_object_ref (icon_view->priv->vadjustment);
        g_object_ref_sink (G_OBJECT (icon_view->priv->vadjustment));

        g_signal_connect (icon_view->priv->vadjustment, "value-changed", G_CALLBACK (exo_icon_view_adjustment_changed), icon_view);
        need_adjust = TRUE;
    }

    if (need_adjust)
        exo_icon_view_adjustment_changed (NULL, icon_view);
}
#endif



static void  exo_icon_view_real_select_all (ExoIconView *icon_view)
{
    exo_icon_view_select_all (icon_view);
}



static void  exo_icon_view_real_unselect_all (ExoIconView *icon_view)
{
    exo_icon_view_unselect_all (icon_view);
}



static void  exo_icon_view_real_select_cursor_item (ExoIconView *icon_view)
{
    exo_icon_view_unselect_all (icon_view);

    if (icon_view->priv->cursor_item != NULL)
        exo_icon_view_select_item (icon_view, icon_view->priv->cursor_item);
}



static gboolean  exo_icon_view_real_activate_cursor_item (ExoIconView *icon_view)
{
    GtkTreePath *path;
    GtkCellRendererMode mode;
    ExoIconViewCellInfo *info = NULL;

    if (!icon_view->priv->cursor_item)
        return FALSE;

    info = g_list_nth_data (icon_view->priv->cell_list, icon_view->priv->cursor_cell);

    if (info)
    {
        g_object_get (info->cell, "mode", &mode, NULL);

        if (mode == GTK_CELL_RENDERER_MODE_ACTIVATABLE)
        {
            exo_icon_view_item_activate_cell (icon_view, icon_view->priv->cursor_item, info, NULL);
            return TRUE;
        }
        else if (mode == GTK_CELL_RENDERER_MODE_EDITABLE)
        {
            exo_icon_view_start_editing (icon_view, icon_view->priv->cursor_item, info, NULL);
            return TRUE;
        }
    }

    path = gtk_tree_path_new_from_indices (g_list_index (icon_view->priv->items, icon_view->priv->cursor_item), -1);
    exo_icon_view_item_activated (icon_view, path);
    gtk_tree_path_free (path);

    return TRUE;
}



static gboolean  exo_icon_view_real_start_interactive_search (ExoIconView *icon_view)
{
    return exo_icon_view_search_start (icon_view, TRUE);
}



static void  exo_icon_view_real_toggle_cursor_item (ExoIconView *icon_view)
{
    if (G_LIKELY (icon_view->priv->cursor_item != NULL))
    {
        switch (icon_view->priv->selection_mode)
        {
        case GTK_SELECTION_NONE:
            break;

        case GTK_SELECTION_BROWSE:
            exo_icon_view_select_item (icon_view, icon_view->priv->cursor_item);
            break;

        case GTK_SELECTION_SINGLE:
            if (icon_view->priv->cursor_item->selected)
                exo_icon_view_unselect_item (icon_view, icon_view->priv->cursor_item);
            else
                exo_icon_view_select_item (icon_view, icon_view->priv->cursor_item);
            break;

        case GTK_SELECTION_MULTIPLE:
            icon_view->priv->cursor_item->selected = !icon_view->priv->cursor_item->selected;
            g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
            exo_icon_view_queue_draw_item (icon_view, icon_view->priv->cursor_item);
            break;

        default:
            g_assert_not_reached ();
        }
    }
}



static void  exo_icon_view_adjustment_changed (GtkAdjustment *adjustment, ExoIconView   *icon_view)
{
    if (gtk_widget_get_realized (GTK_WIDGET (icon_view)))
    {
        gdk_window_move (icon_view->priv->bin_window, -gtk_adjustment_get_value (icon_view->priv->hadjustment), -gtk_adjustment_get_value (icon_view->priv->vadjustment));

        if (G_UNLIKELY (icon_view->priv->doing_rubberband))
            exo_icon_view_update_rubberband (GTK_WIDGET (icon_view));

        gdk_window_process_updates (icon_view->priv->bin_window, TRUE);
    }
}



static GList*
exo_icon_view_layout_single_row (ExoIconView *icon_view,
                                 GList       *first_item,
                                 gint         item_width,
                                 gint         row,
                                 gint        *y,
                                 gint        *maximum_width,
                                 gint         max_cols)
{
    ExoIconViewPrivate *priv = icon_view->priv;
    ExoIconViewItem    *item;
    GtkAllocation       allocation;
    gboolean            rtl;
    GList              *last_item;
    GList              *items = first_item;
    gint               *max_width;
    gint               *max_height;
    gint                focus_width;
    gint                current_width;
    gint                colspan;
    gint                col = 0;
    gint                x;
    gint                i;

    rtl = (gtk_widget_get_direction (GTK_WIDGET (icon_view)) == GTK_TEXT_DIR_RTL);

    max_width = g_newa (gint, priv->n_cells);
    max_height = g_newa (gint, priv->n_cells);
    for (i = priv->n_cells; --i >= 0; )
    {
        max_width[i] = 0;
        max_height[i] = 0;
    }

    gtk_widget_style_get (GTK_WIDGET (icon_view), "focus-line-width", &focus_width, NULL);

    x = priv->margin + focus_width;
    current_width = 2 * (priv->margin + focus_width);

    gtk_widget_get_allocation (GTK_WIDGET (icon_view), &allocation);

    for (items = first_item; items != NULL; items = items->next)
    {
        item = EXO_ICON_VIEW_ITEM (items->data);

        exo_icon_view_calculate_item_size (icon_view, item);
        colspan = 1 + (item->area.width - 1) / (item_width + priv->column_spacing);

        item->area.width = colspan * item_width + (colspan - 1) * priv->column_spacing;

        current_width += item->area.width + priv->column_spacing + 2 * focus_width;

        if (G_LIKELY (items != first_item))
        {
            if ((priv->columns <= 0 && current_width > allocation.width) ||
                    (priv->columns > 0 && col >= priv->columns) ||
                    (max_cols > 0 && col >= max_cols))
                break;
        }

        item->area.y = *y + focus_width;
        item->area.x = rtl ? allocation.width - item->area.width - x : x;

        x = current_width - (priv->margin + focus_width);

        for (i = 0; i < priv->n_cells; i++)
        {
            max_width[i] = MAX (max_width[i], item->box[i].width);
            max_height[i] = MAX (max_height[i], item->box[i].height);
        }

        if (current_width > *maximum_width)
            *maximum_width = current_width;

        item->row = row;
        item->col = col;

        col += colspan;
    }

    last_item = items;

    /* Now go through the row again and align the icons */
    for (items = first_item; items != last_item; items = items->next)
    {
        item = EXO_ICON_VIEW_ITEM (items->data);

        exo_icon_view_calculate_item_size2 (icon_view, item, max_width, max_height);

        /* We may want to readjust the new y coordinate. */
        if (item->area.y + item->area.height + focus_width + priv->row_spacing > *y)
            *y = item->area.y + item->area.height + focus_width + priv->row_spacing;

        if (G_UNLIKELY (rtl))
            item->col = col - 1 - item->col;
    }

    return last_item;
}



static GList*
exo_icon_view_layout_single_col (ExoIconView *icon_view,
                                 GList       *first_item,
                                 gint         item_height,
                                 gint         col,
                                 gint        *x,
                                 gint        *maximum_height,
                                 gint         max_rows)
{
    ExoIconViewPrivate *priv = icon_view->priv;
    ExoIconViewItem    *item;
    GtkAllocation       allocation;
    GList              *items = first_item;
    GList              *last_item;
    gint               *max_width;
    gint               *max_height;
    gint                focus_width;
    gint                current_height;
    gint                rowspan;
    gint                row = 0;
    gint                y;
    gint                i;

    max_width = g_newa (gint, priv->n_cells);
    max_height = g_newa (gint, priv->n_cells);
    for (i = priv->n_cells; --i >= 0; )
    {
        max_width[i] = 0;
        max_height[i] = 0;
    }

    gtk_widget_style_get (GTK_WIDGET (icon_view), "focus-line-width", &focus_width, NULL);

    y = priv->margin + focus_width;
    current_height = 2 * (priv->margin + focus_width);

    gtk_widget_get_allocation (GTK_WIDGET (icon_view), &allocation);

    for (items = first_item; items != NULL; items = items->next)
    {
        item = EXO_ICON_VIEW_ITEM (items->data);

        exo_icon_view_calculate_item_size (icon_view, item);

        rowspan = 1 + (item->area.height - 1) / (item_height + priv->row_spacing);

        item->area.height = rowspan * item_height + (rowspan - 1) * priv->row_spacing;

        current_height += item->area.height + priv->row_spacing + 2 * focus_width;

        if (G_LIKELY (items != first_item))
        {
            if (current_height >= allocation.height ||
                    (max_rows > 0 && row >= max_rows))
                break;
        }

        item->area.y = y + focus_width;
        item->area.x = *x;

        y = current_height - (priv->margin + focus_width);

        for (i = 0; i < priv->n_cells; i++)
        {
            max_width[i] = MAX (max_width[i], item->box[i].width);
            max_height[i] = MAX (max_height[i], item->box[i].height);
        }

        if (current_height > *maximum_height)
            *maximum_height = current_height;

        item->row = row;
        item->col = col;

        row += rowspan;
    }

    last_item = items;

    /* Now go through the column again and align the icons */
    for (items = first_item; items != last_item; items = items->next)
    {
        item = EXO_ICON_VIEW_ITEM (items->data);

        exo_icon_view_calculate_item_size2 (icon_view, item, max_width, max_height);

        /* We may want to readjust the new x coordinate. */
        if (item->area.x + item->area.width + focus_width + priv->column_spacing > *x)
            *x = item->area.x + item->area.width + focus_width + priv->column_spacing;
    }

    return last_item;
}



static void  exo_icon_view_set_adjustment_upper (GtkAdjustment *adj, gdouble        upper)
{
    if (upper != gtk_adjustment_get_upper (adj))
    {
        gdouble min = MAX (0.0, upper - gtk_adjustment_get_page_size (adj));
        gboolean value_changed = FALSE;

        gtk_adjustment_set_upper (adj, upper);

        if (gtk_adjustment_get_value (adj) > min)
        {
            gtk_adjustment_set_value (adj, min);
            value_changed = TRUE;
        }

        gtk_adjustment_changed (adj);

        if (value_changed)
            gtk_adjustment_value_changed (adj);
    }
}



static gint
exo_icon_view_layout_cols (ExoIconView *icon_view,
                           gint         item_height,
                           gint        *x,
                           gint        *maximum_height,
                           gint         max_rows)
{
    GList *icons = icon_view->priv->items;
    GList *items;
    gint   col = 0;
    gint   rows;

    *x = icon_view->priv->margin;

    do
    {
        icons = exo_icon_view_layout_single_col (icon_view, icons, item_height, col, x, maximum_height, max_rows);

        /* count the number of rows in the first column */
        if (G_UNLIKELY (col == 0))
        {
            for (items = icon_view->priv->items, rows = 0; items != icons; items = items->next, ++rows)
                ;
        }

        col++;
    }
    while (icons != NULL);

    *x += icon_view->priv->margin;
    icon_view->priv->cols = col;

    return rows;
}



static gint
exo_icon_view_layout_rows (ExoIconView *icon_view, gint         item_width,
                           gint        *y,
                           gint        *maximum_width,
                           gint         max_cols)
{
    GList *icons = icon_view->priv->items;
    GList *items;
    gint   row = 0;
    gint   cols;

    *y = icon_view->priv->margin;

    do
    {
        icons = exo_icon_view_layout_single_row (icon_view, icons,
                                                 item_width, row,
                                                 y, maximum_width, max_cols);

        /* count the number of columns in the first row */
        if (G_UNLIKELY (row == 0))
        {
            for (items = icon_view->priv->items, cols = 0; items != icons; items = items->next, ++cols)
                ;
        }

        row++;
    }
    while (icons != NULL);

    *y += icon_view->priv->margin;
    icon_view->priv->rows = row;

    return cols;
}



static void  exo_icon_view_layout (ExoIconView *icon_view)
{
    ExoIconViewPrivate *priv = icon_view->priv;
    ExoIconViewItem    *item;
    GtkAllocation       allocation;
    GList              *icons;
    gint                maximum_height = 0;
    gint                maximum_width = 0;
    gint                item_height;
    gint                item_width;
    gint                rows, cols;
    gint                x, y;

    /* verify that we still have a valid model */
    if (G_UNLIKELY (priv->model == NULL))
        return;

    gtk_widget_get_allocation (GTK_WIDGET (icon_view), &allocation);

    /* determine the layout mode */
    if (G_LIKELY (priv->layout_mode == EXO_ICON_VIEW_LAYOUT_ROWS))
    {
        /* calculate item sizes on-demand */
        item_width = priv->item_width;
        if (item_width < 0)
        {
            for (icons = priv->items; icons != NULL; icons = icons->next)
            {
                item = icons->data;
                exo_icon_view_calculate_item_size (icon_view, item);
                item_width = MAX (item_width, item->area.width);
            }
        }

        cols = exo_icon_view_layout_rows (icon_view, item_width, &y, &maximum_width, 0);

        /* If, by adding another column, we increase the height of the icon view, thus forcing a
       * vertical scrollbar to appear that would prevent the last column from being able to fit,
       * we need to relayout the icons with one less column.
       */
        if (cols == priv->cols + 1 && y > allocation.height &&
                priv->height <= allocation.height)
        {
            cols = exo_icon_view_layout_rows (icon_view, item_width, &y, &maximum_width, priv->cols);
        }

        priv->width = maximum_width;
        priv->height = y;
        priv->cols = cols;
    } else {
        /* calculate item sizes on-demand */
        for (icons = priv->items, item_height = 0; icons != NULL; icons = icons->next)
        {
            item = icons->data;
            exo_icon_view_calculate_item_size (icon_view, item);
            item_height = MAX (item_height, item->area.height);
        }

        rows = exo_icon_view_layout_cols (icon_view, item_height, &x, &maximum_height, 0);

        /* If, by adding another row, we increase the width of the icon view, thus forcing a
       * horizontal scrollbar to appear that would prevent the last row from being able to fit,
       * we need to relayout the icons with one less row.
       */
        if (rows == priv->rows + 1 && x > allocation.width &&
                priv->width <= allocation.width)
        {
            rows = exo_icon_view_layout_cols (icon_view, item_height, &x, &maximum_height, priv->rows);
        }

        priv->height = maximum_height;
        priv->width = x;
        priv->rows = rows;
    }

    exo_icon_view_set_adjustment_upper (priv->hadjustment, priv->width);
    exo_icon_view_set_adjustment_upper (priv->vadjustment, priv->height);

    if (gtk_widget_get_realized (GTK_WIDGET (icon_view)))
    {
        gdk_window_resize (priv->bin_window, MAX (priv->width, allocation.width), MAX (priv->height, allocation.height));
    }

    /* drop any pending layout idle source */
    if (priv->layout_idle_id != 0)
        g_source_remove (priv->layout_idle_id);

    gtk_widget_queue_draw (GTK_WIDGET (icon_view));
}



static void  exo_icon_view_get_cell_area (ExoIconView         *icon_view,
                             ExoIconViewItem     *item,
                             ExoIconViewCellInfo *info,
                             GdkRectangle        *cell_area)
{
    if (icon_view->priv->orientation == GTK_ORIENTATION_HORIZONTAL)
    {
        cell_area->x = item->box[info->position].x - item->before[info->position];
        cell_area->y = item->area.y;
        cell_area->width = item->box[info->position].width + item->before[info->position] + item->after[info->position];
        cell_area->height = item->area.height;
    } else {
        cell_area->x = item->area.x;
        cell_area->y = item->box[info->position].y - item->before[info->position];
        cell_area->width = item->area.width;
        cell_area->height = item->box[info->position].height + item->before[info->position] + item->after[info->position];
    }
}



static void  exo_icon_view_calculate_item_size (ExoIconView     *icon_view, ExoIconViewItem *item)
{
    ExoIconViewCellInfo *info;
    GList               *lp;
    gchar               *buffer;

    if (G_LIKELY (item->area.width != -1))
        return;

    if (G_UNLIKELY (item->n_cells != icon_view->priv->n_cells))
    {
        /* apply the new cell size */
        item->n_cells = icon_view->priv->n_cells;

        /* release the memory chunk (if any) */
        g_free (item->box);

        /* allocate a single memory chunk for box, after and before */
        buffer = g_malloc0 (item->n_cells * (sizeof (GdkRectangle) + 2 * sizeof (gint)));

        /* assign the memory */
        item->box = (GdkRectangle *) buffer;
        item->after = (gint *) (buffer + item->n_cells * sizeof (GdkRectangle));
        item->before = item->after + item->n_cells;
    }

    exo_icon_view_set_cell_data (icon_view, item);

    item->area.width = 0;
    item->area.height = 0;
    for (lp = icon_view->priv->cell_list; lp != NULL; lp = lp->next)
    {
        info = EXO_ICON_VIEW_CELL_INFO (lp->data);
        if (G_UNLIKELY (!gtk_cell_renderer_get_visible (info->cell)))
            continue;

        gtk_cell_renderer_get_size (info->cell, GTK_WIDGET (icon_view), NULL, NULL, NULL, &item->box[info->position].width,
                &item->box[info->position].height);

        if (icon_view->priv->orientation == GTK_ORIENTATION_HORIZONTAL)
        {
            item->area.width += item->box[info->position].width + (info->position > 0 ? icon_view->priv->spacing : 0);
            item->area.height = MAX (item->area.height, item->box[info->position].height);
        } else {
            item->area.width = MAX (item->area.width, item->box[info->position].width);
            item->area.height += item->box[info->position].height + (info->position > 0 ? icon_view->priv->spacing : 0);
        }
    }
}



static void  exo_icon_view_calculate_item_size2 (ExoIconView     *icon_view,
                                    ExoIconViewItem *item,
                                    gint            *max_width,
                                    gint            *max_height)
{
    ExoIconViewCellInfo *info;
    GdkRectangle        *box;
    GdkRectangle         cell_area;
    gboolean             rtl;
    gfloat               xalign, yalign;
    GList               *lp;
    gint                 spacing;
    gint                 i, k;
    gint                 xpad, ypad;

    rtl = (gtk_widget_get_direction (GTK_WIDGET (icon_view)) == GTK_TEXT_DIR_RTL);

    spacing = icon_view->priv->spacing;

    if (G_LIKELY (icon_view->priv->layout_mode == EXO_ICON_VIEW_LAYOUT_ROWS))
    {
        item->area.height = 0;
        for (i = 0; i < icon_view->priv->n_cells; ++i)
        {
            if (icon_view->priv->orientation == GTK_ORIENTATION_HORIZONTAL)
                item->area.height = MAX (item->area.height, max_height[i]);
            else
                item->area.height += max_height[i] + (i > 0 ? spacing : 0);
        }
    } else {
        item->area.width = 0;
        for (i = 0; i < icon_view->priv->n_cells; ++i)
        {
            if (icon_view->priv->orientation == GTK_ORIENTATION_HORIZONTAL)
                item->area.width += max_width[i] + (i > 0 ? spacing : 0);
            else
                item->area.width = MAX (item->area.width, max_width[i]);
        }
    }

    cell_area.x = item->area.x;
    cell_area.y = item->area.y;

    for (k = 0; k < 2; ++k)
    {
        for (lp = icon_view->priv->cell_list, i = 0; lp != NULL; lp = lp->next, ++i)
        {
            info = EXO_ICON_VIEW_CELL_INFO (lp->data);
            if (G_UNLIKELY (!gtk_cell_renderer_get_visible (info->cell) || info->pack == (k ? GTK_PACK_START : GTK_PACK_END)))
                continue;

            if (icon_view->priv->orientation == GTK_ORIENTATION_HORIZONTAL)
            {
                cell_area.width = item->box[info->position].width;
                cell_area.height = item->area.height;
            } else {
                cell_area.width = item->area.width;
                cell_area.height = max_height[i];
            }

            gtk_cell_renderer_get_alignment (info->cell, &xalign, &yalign);
            gtk_cell_renderer_get_padding (info->cell, &xpad, &ypad);
            box = item->box + info->position;
            box->x = cell_area.x + (rtl ? (1.0 - xalign) : xalign) * (cell_area.width - box->width - (2 * xpad));
            box->x = MAX (box->x, 0);
            box->y = cell_area.y + yalign * (cell_area.height - box->height - (2 * ypad));
            box->y = MAX (box->y, 0);

            if (icon_view->priv->orientation == GTK_ORIENTATION_HORIZONTAL)
            {
                item->before[info->position] = item->box[info->position].x - cell_area.x;
                item->after[info->position] = cell_area.width - item->box[info->position].width - item->before[info->position];
                cell_area.x += cell_area.width + spacing;
            } else {
                if (item->box[info->position].width > item->area.width)
                {
                    item->area.width = item->box[info->position].width;
                    cell_area.width = item->area.width;
                }
                item->before[info->position] = item->box[info->position].y - cell_area.y;
                item->after[info->position] = cell_area.height - item->box[info->position].height - item->before[info->position];
                cell_area.y += cell_area.height + spacing;
            }
        }
    }

    if (G_UNLIKELY (rtl && icon_view->priv->orientation == GTK_ORIENTATION_HORIZONTAL))
    {
        for (i = 0; i < icon_view->priv->n_cells; i++)
            item->box[i].x = item->area.x + item->area.width - (item->box[i].x + item->box[i].width - item->area.x);
    }
}



static void  exo_icon_view_invalidate_sizes (ExoIconView *icon_view)
{
    GList *lp;

    for (lp = icon_view->priv->items; lp != NULL; lp = lp->next)
        EXO_ICON_VIEW_ITEM (lp->data)->area.width = -1;
    exo_icon_view_queue_layout (icon_view);
}



static void  exo_icon_view_paint_item (ExoIconView     *icon_view,
                          ExoIconViewItem *item,
                          GdkRectangle    *area,
                          #if GTK_CHECK_VERSION (3, 0, 0)
                          cairo_t         *cr,
                          #else
                          GdkDrawable     *drawable,
                          #endif
                          gint             x,
                          gint             y,
                          gboolean         draw_focus)
{
    GtkCellRendererState flags;
    ExoIconViewCellInfo *info;
    GtkStateType         state;
    GdkRectangle         cell_area;
    gboolean             rtl;
    GList               *lp;

    if (G_UNLIKELY (icon_view->priv->model == NULL))
        return;

    exo_icon_view_set_cell_data (icon_view, item);

    rtl = gtk_widget_get_direction (GTK_WIDGET (icon_view)) == GTK_TEXT_DIR_RTL;

    if (item->selected)
    {
        flags = GTK_CELL_RENDERER_SELECTED;
        state = gtk_widget_has_focus (GTK_WIDGET (icon_view)) ? GTK_STATE_SELECTED : GTK_STATE_ACTIVE;
    } else {
        flags = 0;
        state = GTK_STATE_NORMAL;
    }

    if (G_UNLIKELY (icon_view->priv->prelit_item == item))
        flags |= GTK_CELL_RENDERER_PRELIT;
    /* NOTE by Hong Jen Yee: We always want to focus rectangle. */
    if (G_UNLIKELY (/*EXO_ICON_VIEW_FLAG_SET (icon_view, EXO_ICON_VIEW_DRAW_KEYFOCUS) &&*/ icon_view->priv->cursor_item == item))
        flags |= GTK_CELL_RENDERER_FOCUSED;

#ifdef DEBUG_ICON_VIEW
    gdk_draw_rectangle (drawable, GTK_WIDGET (icon_view)->style->black_gc, FALSE, x, y, item->area.width, item->area.height);
#endif

    for (lp = icon_view->priv->cell_list; lp != NULL; lp = lp->next)
    {
        info = EXO_ICON_VIEW_CELL_INFO (lp->data);

        if (G_UNLIKELY (!gtk_cell_renderer_get_visible (info->cell)))
            continue;

        exo_icon_view_get_cell_area (icon_view, item, info, &cell_area);

#ifdef DEBUG_ICON_VIEW
        gdk_draw_rectangle (drawable,
                            GTK_WIDGET (icon_view)->style->black_gc,
                            FALSE,
                            x - item->area.x + cell_area.x,
                            y - item->area.y + cell_area.y,
                            cell_area.width, cell_area.height);

        gdk_draw_rectangle (drawable,
                            GTK_WIDGET (icon_view)->style->black_gc,
                            FALSE,
                            x - item->area.x + item->box[info->position].x,
                y - item->area.y + item->box[info->position].y,
                item->box[info->position].width, item->box[info->position].height);
#endif

        cell_area.x = x - item->area.x + cell_area.x;
        cell_area.y = y - item->area.y + cell_area.y;

#if GTK_CHECK_VERSION (3, 0, 0)
        gtk_cell_renderer_render (info->cell, cr, GTK_WIDGET (icon_view), &cell_area, &cell_area, flags);
#else
        gtk_cell_renderer_render (info->cell, drawable, GTK_WIDGET (icon_view), &cell_area, &cell_area, area, flags);
#endif

    }
}



static void  exo_icon_view_queue_draw_item (ExoIconView     *icon_view, ExoIconViewItem *item)
{
    GdkRectangle rect;
    gint         focus_width;

    gtk_widget_style_get (GTK_WIDGET (icon_view), "focus-line-width", &focus_width, NULL);

    rect.x = item->area.x - focus_width;
    rect.y = item->area.y - focus_width;
    rect.width = item->area.width + 2 * focus_width;
    rect.height = item->area.height + 2 * focus_width;

    if (icon_view->priv->bin_window)
    {
        //printf("draw_item %d,%d %dx%d\n", rect.x, rect.y, rect.width, rect.height );
        gdk_window_invalidate_rect (icon_view->priv->bin_window, &rect, TRUE);
    }
}



static gboolean  layout_callback (gpointer user_data)
{
    ExoIconView *icon_view = EXO_ICON_VIEW (user_data);

    GDK_THREADS_ENTER ();
    exo_icon_view_layout (icon_view);
    GDK_THREADS_LEAVE();

    return FALSE;
}



static void  layout_destroy (gpointer user_data)
{
    EXO_ICON_VIEW (user_data)->priv->layout_idle_id = 0;
}



static void  exo_icon_view_queue_layout (ExoIconView *icon_view)
{
    if (G_UNLIKELY (icon_view->priv->layout_idle_id == 0))
        icon_view->priv->layout_idle_id = g_idle_add_full (G_PRIORITY_DEFAULT_IDLE, layout_callback, icon_view, layout_destroy);
}



static void  exo_icon_view_set_cursor_item (ExoIconView     *icon_view, ExoIconViewItem *item, gint             cursor_cell)
{
    if (icon_view->priv->cursor_item == item &&
            (cursor_cell < 0 || cursor_cell == icon_view->priv->cursor_cell))
        return;

    if (icon_view->priv->cursor_item != NULL)
        exo_icon_view_queue_draw_item (icon_view, icon_view->priv->cursor_item);

    icon_view->priv->cursor_item = item;
    if (cursor_cell >= 0)
        icon_view->priv->cursor_cell = cursor_cell;

    exo_icon_view_queue_draw_item (icon_view, item);
}



static ExoIconViewItem*
exo_icon_view_get_item_at_coords (const ExoIconView    *icon_view, gint                  x, gint                  y, gboolean              only_in_cell, ExoIconViewCellInfo **cell_at_pos)
{
    const ExoIconViewPrivate *priv = icon_view->priv;
    ExoIconViewCellInfo      *info;
    ExoIconViewItem          *item;
    GdkRectangle              box;
    const GList              *items;
    const GList              *lp;

    for (items = priv->items; items != NULL; items = items->next)
    {
        item = items->data;
        if (x >= item->area.x - priv->row_spacing / 2 && x <= item->area.x + item->area.width + priv->row_spacing / 2 &&
                y >= item->area.y - priv->column_spacing / 2 && y <= item->area.y + item->area.height + priv->column_spacing / 2)
        {
            if (only_in_cell || cell_at_pos)
            {
                exo_icon_view_set_cell_data (icon_view, item);
                for (lp = priv->cell_list; lp != NULL; lp = lp->next)
                {
                    /* check if the cell is visible */
                    info = (ExoIconViewCellInfo *) lp->data;
                    if (!gtk_cell_renderer_get_visible (info->cell))
                        continue;

                    box = item->box[info->position];
                    if ((x >= box.x && x <= box.x + box.width &&
                         y >= box.y && y <= box.y + box.height) ||
                            (x >= box.x  &&
                             x <= box.x + box.width &&
                             y >= box.y &&
                             y <= box.y + box.height))
                    {
                        if (cell_at_pos != NULL)
                            *cell_at_pos = info;

                        return item;
                    }
                }

                if (only_in_cell)
                    return NULL;

                if (cell_at_pos != NULL)
                    *cell_at_pos = NULL;
            }

            return item;
        }
    }

    return NULL;
}



static void  exo_icon_view_select_item (ExoIconView      *icon_view, ExoIconViewItem  *item)
{
    if (item->selected || icon_view->priv->selection_mode == GTK_SELECTION_NONE)
        return;
    else if (icon_view->priv->selection_mode != GTK_SELECTION_MULTIPLE)
        exo_icon_view_unselect_all_internal (icon_view);

    item->selected = TRUE;

    exo_icon_view_queue_draw_item (icon_view, item);

    g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
}



static void  exo_icon_view_unselect_item (ExoIconView      *icon_view, ExoIconViewItem  *item)
{
    if (!item->selected)
        return;

    if (icon_view->priv->selection_mode == GTK_SELECTION_NONE ||
            icon_view->priv->selection_mode == GTK_SELECTION_BROWSE)
        return;

    item->selected = FALSE;

    g_signal_emit (G_OBJECT (icon_view), icon_view_signals[SELECTION_CHANGED], 0);

    exo_icon_view_queue_draw_item (icon_view, item);
}



static void  exo_icon_view_row_changed (GtkTreeModel *model,
                           GtkTreePath  *path,
                           GtkTreeIter  *iter,
                           ExoIconView  *icon_view)
{
    ExoIconViewItem *item;

    item = g_list_nth_data (icon_view->priv->items, gtk_tree_path_get_indices(path)[0]);

    /* stop editing this item */
    if (G_UNLIKELY (item == icon_view->priv->edited_item))
        exo_icon_view_stop_editing (icon_view, TRUE);

    /* emit "selection-changed" if the item is selected */
    if (G_UNLIKELY (item->selected))
        g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);

    /* recalculate layout (a value of -1 for width
   * indicates that the item needs to be layouted).
   */
    item->area.width = -1;
    exo_icon_view_queue_layout (icon_view);
}



static void  exo_icon_view_row_inserted (GtkTreeModel *model, GtkTreePath  *path, GtkTreeIter  *iter, ExoIconView  *icon_view)
{
    ExoIconViewItem *item;
    gint             index;

    index = gtk_tree_path_get_indices (path)[0];

    /* allocate the new item */
    item = _exo_slice_new0 (ExoIconViewItem);
    item->iter = *iter;
    item->area.width = -1;
    icon_view->priv->items = g_list_insert (icon_view->priv->items, item, index);

    /* recalculate the layout */
    exo_icon_view_queue_layout (icon_view);
}



static void  exo_icon_view_row_deleted (GtkTreeModel *model, GtkTreePath  *path, ExoIconView  *icon_view)
{
    ExoIconViewItem *item;
    gboolean         changed = FALSE;
    GList           *list;

    /* determine the position and the item for the path */
    list = g_list_nth (icon_view->priv->items, gtk_tree_path_get_indices (path)[0]);
    item = list->data;

    if (G_UNLIKELY (item == icon_view->priv->edited_item))
        exo_icon_view_stop_editing (icon_view, TRUE);

    /* use the next item (if any) as anchor, else use prev, otherwise reset anchor */
    if (G_UNLIKELY (item == icon_view->priv->anchor_item))
        icon_view->priv->anchor_item = (list->next != NULL) ? list->next->data : ((list->prev != NULL) ? list->prev->data : NULL);

    /* use the next item (if any) as cursor, else use prev, otherwise reset cursor */
    if (G_UNLIKELY (item == icon_view->priv->cursor_item))
        icon_view->priv->cursor_item = (list->next != NULL) ? list->next->data : ((list->prev != NULL) ? list->prev->data : NULL);

    if (G_UNLIKELY (item == icon_view->priv->prelit_item))
    {
        /* reset the prelit item */
        icon_view->priv->prelit_item = NULL;

        /* cancel any pending single click timer */
        if (G_UNLIKELY (icon_view->priv->single_click_timeout_id != 0))
            g_source_remove (icon_view->priv->single_click_timeout_id);

        /* in single click mode, we also reset the cursor when realized */
        if (G_UNLIKELY (icon_view->priv->single_click && gtk_widget_get_realized (GTK_WIDGET (icon_view))))
            gdk_window_set_cursor (icon_view->priv->bin_window, NULL);
    }

    /* check if the selection changed */
    if (G_UNLIKELY (item->selected))
        changed = TRUE;

    /* release the item resources */
    g_free (item->box);

    /* drop the item from the list */
    icon_view->priv->items = g_list_delete_link (icon_view->priv->items, list);

    /* release the item */
    _exo_slice_free (ExoIconViewItem, item);

    /* recalculate the layout */
    exo_icon_view_queue_layout (icon_view);

    /* if we removed a previous selected item, we need
   * to tell others that we have a new selection.
   */
    if (G_UNLIKELY (changed))
        g_signal_emit (G_OBJECT (icon_view), icon_view_signals[SELECTION_CHANGED], 0);
}



static void  exo_icon_view_rows_reordered (GtkTreeModel *model, GtkTreePath  *parent, GtkTreeIter  *iter, gint         *new_order, ExoIconView  *icon_view)
{
    GList **list_array;
    GList  *list;
    gint   *order;
    gint     length;
    gint     i;

    /* cancel any editing attempt */
    exo_icon_view_stop_editing (icon_view, TRUE);

    /* determine the number of items to reorder */
    length = gtk_tree_model_iter_n_children (model, NULL);
    if (G_UNLIKELY (length == 0))
        return;

    list_array = g_newa (GList *, length);
    order = g_newa (gint, length);

    for (i = 0; i < length; i++)
        order[new_order[i]] = i;

    for (i = 0, list = icon_view->priv->items; list != NULL; list = list->next, i++)
        list_array[order[i]] = list;

    /* hook up the first item */
    icon_view->priv->items = list_array[0];
    list_array[0]->prev = NULL;

    /* hook up the remaining items */
    for (i = 1; i < length; ++i)
    {
        list_array[i - 1]->next = list_array[i];
        list_array[i]->prev = list_array[i - 1];
    }

    /* hook up the last item */
    list_array[length - 1]->next = NULL;

    exo_icon_view_queue_layout (icon_view);
}



static void  exo_icon_view_add_move_binding (GtkBindingSet  *binding_set, guint           keyval, guint           modmask, GtkMovementStep step, gint            count)
{

    gtk_binding_entry_add_signal (binding_set, keyval, modmask, "move-cursor", 2, G_TYPE_ENUM, step, G_TYPE_INT, count);
    gtk_binding_entry_add_signal (binding_set, keyval, GDK_SHIFT_MASK, "move-cursor", 2, G_TYPE_ENUM, step, G_TYPE_INT, count);

    if ((modmask & GDK_CONTROL_MASK) != GDK_CONTROL_MASK)
    {
        gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK | GDK_SHIFT_MASK, "move-cursor", 2, G_TYPE_ENUM, step, G_TYPE_INT, count);
        gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK, "move-cursor", 2, G_TYPE_ENUM, step, G_TYPE_INT, count);
    }
}



static gboolean  exo_icon_view_real_move_cursor (ExoIconView     *icon_view, GtkMovementStep  step, gint             count)
{
    GdkModifierType state;

    _exo_return_val_if_fail (EXO_ICON_VIEW (icon_view), FALSE);
    _exo_return_val_if_fail (step == GTK_MOVEMENT_LOGICAL_POSITIONS ||
                             step == GTK_MOVEMENT_VISUAL_POSITIONS ||
                             step == GTK_MOVEMENT_DISPLAY_LINES ||
                             step == GTK_MOVEMENT_PAGES ||
                             step == GTK_MOVEMENT_BUFFER_ENDS, FALSE);

    if (!gtk_widget_has_focus (GTK_WIDGET (icon_view)))
        return FALSE;

    exo_icon_view_stop_editing (icon_view, FALSE);
    EXO_ICON_VIEW_SET_FLAG (icon_view, EXO_ICON_VIEW_DRAW_KEYFOCUS);
    gtk_widget_grab_focus (GTK_WIDGET (icon_view));

    if (gtk_get_current_event_state (&state))
    {
        if ((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
            icon_view->priv->ctrl_pressed = TRUE;
        if ((state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
            icon_view->priv->shift_pressed = TRUE;
    }
    /* else we assume not pressed */

    switch (step)
    {
    case GTK_MOVEMENT_LOGICAL_POSITIONS:
    case GTK_MOVEMENT_VISUAL_POSITIONS:
        exo_icon_view_move_cursor_left_right (icon_view, count);
        break;
    case GTK_MOVEMENT_DISPLAY_LINES:
        exo_icon_view_move_cursor_up_down (icon_view, count);
        break;
    case GTK_MOVEMENT_PAGES:
        exo_icon_view_move_cursor_page_up_down (icon_view, count);
        break;
    case GTK_MOVEMENT_BUFFER_ENDS:
        exo_icon_view_move_cursor_start_end (icon_view, count);
        break;
    default:
        g_assert_not_reached ();
    }

    icon_view->priv->ctrl_pressed = FALSE;
    icon_view->priv->shift_pressed = FALSE;

    return TRUE;
}



static gint
find_cell (ExoIconView     *icon_view,
           ExoIconViewItem *item,
           gint             cell,
           GtkOrientation   orientation,
           gint             step,
           gint            *count)
{
    GtkCellRendererMode mode;
    gint n_focusable;
    gint *focusable;
    gint first_text;
    gint current;
    gint i, k;
    GList *l;

    if (icon_view->priv->orientation != orientation)
        return cell;

    exo_icon_view_set_cell_data (icon_view, item);

    focusable = g_new0 (gint, icon_view->priv->n_cells);
    n_focusable = 0;

    first_text = 0;
    current = 0;
    for (k = 0; k < 2; k++)
        for (l = icon_view->priv->cell_list, i = 0; l; l = l->next, i++)
        {
            ExoIconViewCellInfo *info = (ExoIconViewCellInfo *)l->data;

            if (info->pack == (k ? GTK_PACK_START : GTK_PACK_END))
                continue;

            if (!gtk_cell_renderer_get_visible (info->cell))
                continue;

            if (GTK_IS_CELL_RENDERER_TEXT (info->cell))
                first_text = i;

            g_object_get (G_OBJECT (info->cell), "mode", &mode, NULL);
            if (mode != GTK_CELL_RENDERER_MODE_INERT)
            {
                if (cell == i)
                    current = n_focusable;

                focusable[n_focusable] = i;

                n_focusable++;
            }
        }

    if (n_focusable == 0)
        focusable[n_focusable++] = first_text;

    if (cell < 0)
    {
        current = step > 0 ? 0 : n_focusable - 1;
        cell = focusable[current];
    }

    if (current + *count < 0)
    {
        cell = -1;
        *count = current + *count;
    }
    else if (current + *count > n_focusable - 1)
    {
        cell = -1;
        *count = current + *count - (n_focusable - 1);
    } else {
        cell = focusable[current + *count];
        *count = 0;
    }

    g_free (focusable);

    return cell;
}



static ExoIconViewItem *
find_item_page_up_down (ExoIconView     *icon_view, ExoIconViewItem *current, gint             count)
{
    GList *item = g_list_find (icon_view->priv->items, current);
    GList *next;
    gint   col = current->col;
    gint   y = current->area.y + count * gtk_adjustment_get_page_size (icon_view->priv->vadjustment);

    if (count > 0)
    {
        for (; item != NULL; item = item->next)
        {
            for (next = item->next; next; next = next->next)
                if (EXO_ICON_VIEW_ITEM (next->data)->col == col)
                    break;

            if (next == NULL || EXO_ICON_VIEW_ITEM (next->data)->area.y > y)
                break;
        }
    } else {
        for (; item != NULL; item = item->prev)
        {
            for (next = item->prev; next; next = next->prev)
                if (EXO_ICON_VIEW_ITEM (next->data)->col == col)
                    break;

            if (next == NULL || EXO_ICON_VIEW_ITEM (next->data)->area.y < y)
                break;
        }
    }

    return (item != NULL) ? item->data : NULL;
}



static gboolean  exo_icon_view_select_all_between (ExoIconView     *icon_view, ExoIconViewItem *anchor, ExoIconViewItem *cursor)
{
    GList *items;
    ExoIconViewItem *item, *last;
    gboolean dirty = FALSE;

    for (items = icon_view->priv->items; items; items = items->next)
    {
        item = items->data;

        if (item == anchor)
        {
            last = cursor;
            break;
        }
        else if (item == cursor)
        {
            last = anchor;
            break;
        }
    }

    for (; items; items = items->next)
    {
        item = items->data;

        if (!item->selected)
            dirty = TRUE;

        item->selected = TRUE;

        exo_icon_view_queue_draw_item (icon_view, item);

        if (item == last)
            break;
    }

    return dirty;
}



static void  exo_icon_view_move_cursor_up_down (ExoIconView *icon_view, gint         count)
{
    ExoIconViewItem *item;
    gboolean         dirty = FALSE;
    GList           *list;
    gint             cell = -1;
    gint             step;

    if (!gtk_widget_has_focus (GTK_WIDGET (icon_view)))
        return;

    if (!icon_view->priv->cursor_item)
    {
        if (count > 0)
            list = icon_view->priv->items;
        else
            list = g_list_last (icon_view->priv->items);

        item = list ? list->data : NULL;
    } else {
        item = icon_view->priv->cursor_item;
        cell = icon_view->priv->cursor_cell;
        step = count > 0 ? 1 : -1;
        while (item)
        {
            cell = find_cell (icon_view, item, cell, GTK_ORIENTATION_VERTICAL, step, &count);
            if (count == 0)
                break;

            /* determine the list position for the item */
            list = g_list_find (icon_view->priv->items, item);

            if (G_LIKELY (icon_view->priv->layout_mode == EXO_ICON_VIEW_LAYOUT_ROWS))
            {
                /* determine the item in the next/prev row */
                if (step > 0)
                {
                    for (list = list->next; list != NULL; list = list->next)
                        if (EXO_ICON_VIEW_ITEM (list->data)->row == item->row + step
                                && EXO_ICON_VIEW_ITEM (list->data)->col == item->col)
                            break;
                } else {
                    for (list = list->prev; list != NULL; list = list->prev)
                        if (EXO_ICON_VIEW_ITEM (list->data)->row == item->row + step
                                && EXO_ICON_VIEW_ITEM (list->data)->col == item->col)
                            break;
                }
            } else {
                list = (step > 0) ? list->next : list->prev;
            }

            /* check if we found a matching item */
            item = (list != NULL) ? list->data : NULL;

            count = count - step;
        }
    }

    if (!item)
        return;

    if (icon_view->priv->ctrl_pressed ||
            !icon_view->priv->shift_pressed ||
            !icon_view->priv->anchor_item ||
            icon_view->priv->selection_mode != GTK_SELECTION_MULTIPLE)
        icon_view->priv->anchor_item = item;

    exo_icon_view_set_cursor_item (icon_view, item, cell);

    if (!icon_view->priv->ctrl_pressed &&
            icon_view->priv->selection_mode != GTK_SELECTION_NONE)
    {
        dirty = exo_icon_view_unselect_all_internal (icon_view);
        dirty = exo_icon_view_select_all_between (icon_view, icon_view->priv->anchor_item, item) || dirty;
    }

    exo_icon_view_scroll_to_item (icon_view, item);

    if (dirty)
        g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
}



static void  exo_icon_view_move_cursor_page_up_down (ExoIconView *icon_view, gint         count)
{
    ExoIconViewItem *item;
    gboolean dirty = FALSE;

    if (!gtk_widget_has_focus (GTK_WIDGET (icon_view)))
        return;

    if (!icon_view->priv->cursor_item)
    {
        GList *list;

        if (count > 0)
            list = icon_view->priv->items;
        else
            list = g_list_last (icon_view->priv->items);

        item = list ? list->data : NULL;
    }
    else
        item = find_item_page_up_down (icon_view, icon_view->priv->cursor_item, count);

    if (!item)
        return;

    if (icon_view->priv->ctrl_pressed ||
            !icon_view->priv->shift_pressed ||
            !icon_view->priv->anchor_item ||
            icon_view->priv->selection_mode != GTK_SELECTION_MULTIPLE)
        icon_view->priv->anchor_item = item;

    exo_icon_view_set_cursor_item (icon_view, item, -1);

    if (!icon_view->priv->ctrl_pressed &&
            icon_view->priv->selection_mode != GTK_SELECTION_NONE)
    {
        dirty = exo_icon_view_unselect_all_internal (icon_view);
        dirty = exo_icon_view_select_all_between (icon_view, icon_view->priv->anchor_item, item) || dirty;
    }

    exo_icon_view_scroll_to_item (icon_view, item);

    if (dirty)
        g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
}



static void  exo_icon_view_move_cursor_left_right (ExoIconView *icon_view, gint         count)
{
    ExoIconViewItem *item;
    gboolean         dirty = FALSE;
    GList           *list;
    gint             cell = -1;
    gint             step;

    if (!gtk_widget_has_focus (GTK_WIDGET (icon_view)))
        return;

    if (!icon_view->priv->cursor_item)
    {
        if (count > 0)
            list = icon_view->priv->items;
        else
            list = g_list_last (icon_view->priv->items);

        item = list ? list->data : NULL;
    } else {
        item = icon_view->priv->cursor_item;
        cell = icon_view->priv->cursor_cell;
        step = count > 0 ? 1 : -1;
        while (item)
        {
            cell = find_cell (icon_view, item, cell, GTK_ORIENTATION_HORIZONTAL, step, &count);
            if (count == 0)
                break;

            /* lookup the item in the list */
            list = g_list_find (icon_view->priv->items, item);

            if (G_LIKELY (icon_view->priv->layout_mode == EXO_ICON_VIEW_LAYOUT_ROWS))
            {
                /* determine the next/prev list item depending on step,
               * support wrapping around on the edges, as requested
               * in http://bugzilla.xfce.org/show_bug.cgi?id=1623.
               */
                list = (step > 0) ? list->next : list->prev;
            } else {
                /* determine the item in the next/prev row */
                if (step > 0)
                {
                    for (list = list->next; list != NULL; list = list->next)
                        if (EXO_ICON_VIEW_ITEM (list->data)->col == item->col + step
                                && EXO_ICON_VIEW_ITEM (list->data)->row == item->row)
                            break;
                } else {
                    for (list = list->prev; list != NULL; list = list->prev)
                        if (EXO_ICON_VIEW_ITEM (list->data)->col == item->col + step
                                && EXO_ICON_VIEW_ITEM (list->data)->row == item->row)
                            break;
                }
            }

            /* determine the item for the list position (if any) */
            item = (list != NULL) ? list->data : NULL;

            count = count - step;
        }
    }

    if (!item)
        return;

    if (icon_view->priv->ctrl_pressed ||
            !icon_view->priv->shift_pressed ||
            !icon_view->priv->anchor_item ||
            icon_view->priv->selection_mode != GTK_SELECTION_MULTIPLE)
        icon_view->priv->anchor_item = item;

    exo_icon_view_set_cursor_item (icon_view, item, cell);

    if (!icon_view->priv->ctrl_pressed &&
            icon_view->priv->selection_mode != GTK_SELECTION_NONE)
    {
        dirty = exo_icon_view_unselect_all_internal (icon_view);
        dirty = exo_icon_view_select_all_between (icon_view, icon_view->priv->anchor_item, item) || dirty;
    }

    exo_icon_view_scroll_to_item (icon_view, item);

    if (dirty)
        g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
}



static void  exo_icon_view_move_cursor_start_end (ExoIconView *icon_view, gint         count)
{
    ExoIconViewItem *item;
    gboolean         dirty = FALSE;
    GList           *lp;

    if (!gtk_widget_has_focus (GTK_WIDGET (icon_view)))
        return;

    lp = (count < 0) ? icon_view->priv->items : g_list_last (icon_view->priv->items);
    if (G_UNLIKELY (lp == NULL))
        return;

    item = EXO_ICON_VIEW_ITEM (lp->data);
    if (icon_view->priv->ctrl_pressed ||
            !icon_view->priv->shift_pressed ||
            !icon_view->priv->anchor_item ||
            icon_view->priv->selection_mode != GTK_SELECTION_MULTIPLE)
        icon_view->priv->anchor_item = item;

    exo_icon_view_set_cursor_item (icon_view, item, -1);

    if (!icon_view->priv->ctrl_pressed &&
            icon_view->priv->selection_mode != GTK_SELECTION_NONE)
    {
        dirty = exo_icon_view_unselect_all_internal (icon_view);
        dirty = exo_icon_view_select_all_between (icon_view, icon_view->priv->anchor_item, item) || dirty;
    }

    exo_icon_view_scroll_to_item (icon_view, item);

    if (G_UNLIKELY (dirty))
        g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
}


/* Get the actual size needed by an item (as opposed to the size
 * allocated based on the largest item in the same row/column).
 */
static void  exo_icon_view_get_item_needed_size (ExoIconView     *icon_view, ExoIconViewItem *item, gint            *width, gint            *height)
{
    GList               *lp;
    ExoIconViewCellInfo *info;

    *width = 0;
    *height = 0;

    for (lp = icon_view->priv->cell_list; lp != NULL; lp = lp->next)
    {
        info = EXO_ICON_VIEW_CELL_INFO (lp->data);
        if (G_UNLIKELY (!gtk_cell_renderer_get_visible(info->cell)))
            continue;

        if (icon_view->priv->orientation == GTK_ORIENTATION_HORIZONTAL)
        {
            *width += item->box[info->position].width
                    + (info->position > 0 ? icon_view->priv->spacing : 0);
            *height = MAX (*height, item->box[info->position].height);
        } else {
            *width = MAX (*width, item->box[info->position].width);
            *height += item->box[info->position].height
                    + (info->position > 0 ? icon_view->priv->spacing : 0);
        }
    }
}


static void  exo_icon_view_scroll_to_item (ExoIconView     *icon_view, ExoIconViewItem *item)
{
    GtkAllocation allocation;
    gint x, y, width, height;
    gint focus_width;
    gint item_width, item_height;

    gtk_widget_style_get (GTK_WIDGET (icon_view), "focus-line-width", &focus_width, NULL);

    gtk_widget_get_allocation (GTK_WIDGET (icon_view), &allocation);

    width = gdk_window_get_width(icon_view->priv->bin_window);
    height = gdk_window_get_height(icon_view->priv->bin_window);
    gdk_window_get_position (icon_view->priv->bin_window, &x, &y);
    exo_icon_view_get_item_needed_size (icon_view, item, &item_width, &item_height);

    /*
   * If an item reaches beyond the edges of the view, we scroll just enough
   * to make as much of it visible as possible.  This avoids interfering
   * with double-click (since the second click will not scroll differently),
   * prevents narrow items in wide columns from being scrolled out of view
   * when selected, and ensures that items will be brought into view when
   * selected even if it was done by a keystroke instead of a mouse click.
   * See XFCE bugs 1683 and 6014 for some problems seen in the past.
   */

    if (y + item->area.y - focus_width < 0)
    {
        gtk_adjustment_set_value (icon_view->priv->vadjustment,
                                  gtk_adjustment_get_value (icon_view->priv->vadjustment) + y + item->area.y - focus_width);
    }
    else if (y + item->area.y + item_height + focus_width > allocation.height
             && y + item->area.y - focus_width > 0)
    {
        gtk_adjustment_set_value (icon_view->priv->vadjustment,
                                  gtk_adjustment_get_value (icon_view->priv->vadjustment)
                                  + MIN (y + item->area.y - focus_width,
                                         y + item->area.y + item_height + focus_width - allocation.height));
    }

    if (x + item->area.x - focus_width < 0)
    {
        gtk_adjustment_set_value (icon_view->priv->hadjustment,
                                  gtk_adjustment_get_value (icon_view->priv->hadjustment) + x + item->area.x - focus_width);
    }
    else if (x + item->area.x + item_width + focus_width > allocation.width
             && x + item->area.x - focus_width > 0)
    {
        gtk_adjustment_set_value (icon_view->priv->hadjustment,
                                  gtk_adjustment_get_value (icon_view->priv->hadjustment)
                                  + MIN (x + item->area.x - focus_width,
                                         x + item->area.x + item_width + focus_width - allocation.width));
    }

    gtk_adjustment_changed (icon_view->priv->hadjustment);
    gtk_adjustment_changed (icon_view->priv->vadjustment);
}



static ExoIconViewCellInfo *
exo_icon_view_get_cell_info (ExoIconView     *icon_view, GtkCellRenderer *renderer)
{
    GList *lp;

    for (lp = icon_view->priv->cell_list; lp != NULL; lp = lp->next)
        if (EXO_ICON_VIEW_CELL_INFO (lp->data)->cell == renderer)
            return lp->data;

    return NULL;
}



static void  exo_icon_view_set_cell_data (const ExoIconView *icon_view, ExoIconViewItem   *item)
{
    ExoIconViewCellInfo *info;
    GtkTreePath         *path;
    GtkTreeIter          iter;
    GValue               value = {0, };
    GSList              *slp;
    GList               *lp;

    if (G_UNLIKELY (!EXO_ICON_VIEW_FLAG_SET (icon_view, EXO_ICON_VIEW_ITERS_PERSIST)))
    {
        path = gtk_tree_path_new_from_indices (g_list_index (icon_view->priv->items, item), -1);
        gtk_tree_model_get_iter (icon_view->priv->model, &iter, path);
        gtk_tree_path_free (path);
    } else {
        iter = item->iter;
    }

    for (lp = icon_view->priv->cell_list; lp != NULL; lp = lp->next)
    {
        info = EXO_ICON_VIEW_CELL_INFO (lp->data);

        for (slp = info->attributes; slp != NULL && slp->next != NULL; slp = slp->next->next)
        {
            gtk_tree_model_get_value (icon_view->priv->model, &iter, GPOINTER_TO_INT (slp->next->data), &value);
            g_object_set_property (G_OBJECT (info->cell), slp->data, &value);
            g_value_unset (&value);
        }

        if (G_UNLIKELY (info->func != NULL))
            (*info->func) (GTK_CELL_LAYOUT (icon_view), info->cell, icon_view->priv->model, &iter, info->func_data);
    }
}



static void  free_cell_attributes (ExoIconViewCellInfo *info)
{
    GSList *lp;

    for (lp = info->attributes; lp != NULL && lp->next != NULL; lp = lp->next->next)
        g_free (lp->data);
    g_slist_free (info->attributes);
    info->attributes = NULL;
}



static void  free_cell_info (ExoIconViewCellInfo *info)
{
    if (G_UNLIKELY (info->destroy != NULL))
        (*info->destroy) (info->func_data);

    free_cell_attributes (info);
    g_object_unref (G_OBJECT (info->cell));
    _exo_slice_free (ExoIconViewCellInfo, info);
}



static void  exo_icon_view_cell_layout_pack_start (GtkCellLayout   *layout, GtkCellRenderer *renderer, gboolean         expand)
{
    ExoIconViewCellInfo *info;
    ExoIconView         *icon_view = EXO_ICON_VIEW (layout);

    _exo_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
    _exo_return_if_fail (exo_icon_view_get_cell_info (icon_view, renderer) == NULL);

    g_object_ref (renderer);
    g_object_ref_sink (G_OBJECT (renderer));

    info = _exo_slice_new0 (ExoIconViewCellInfo);
    info->cell = renderer;
    info->expand = expand ? TRUE : FALSE;
    info->pack = GTK_PACK_START;
    info->position = icon_view->priv->n_cells;

    icon_view->priv->cell_list = g_list_append (icon_view->priv->cell_list, info);
    icon_view->priv->n_cells++;

    exo_icon_view_invalidate_sizes (icon_view);
}



static void  exo_icon_view_cell_layout_pack_end (GtkCellLayout   *layout, GtkCellRenderer *renderer, gboolean         expand)
{
    ExoIconViewCellInfo *info;
    ExoIconView         *icon_view = EXO_ICON_VIEW (layout);

    _exo_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
    _exo_return_if_fail (exo_icon_view_get_cell_info (icon_view, renderer) == NULL);

    g_object_ref (renderer);
    g_object_ref_sink (G_OBJECT (renderer));

    info = _exo_slice_new0 (ExoIconViewCellInfo);
    info->cell = renderer;
    info->expand = expand ? TRUE : FALSE;
    info->pack = GTK_PACK_END;
    info->position = icon_view->priv->n_cells;

    icon_view->priv->cell_list = g_list_append (icon_view->priv->cell_list, info);
    icon_view->priv->n_cells++;

    exo_icon_view_invalidate_sizes (icon_view);
}



static void  exo_icon_view_cell_layout_add_attribute (GtkCellLayout   *layout, GtkCellRenderer *renderer, const gchar     *attribute, gint             column)
{
    ExoIconViewCellInfo *info;

    info = exo_icon_view_get_cell_info (EXO_ICON_VIEW (layout), renderer);
    if (G_LIKELY (info != NULL))
    {
        info->attributes = g_slist_prepend (info->attributes, GINT_TO_POINTER (column));
        info->attributes = g_slist_prepend (info->attributes, g_strdup (attribute));

        exo_icon_view_invalidate_sizes (EXO_ICON_VIEW (layout));
    }
}



static void  exo_icon_view_cell_layout_clear (GtkCellLayout *layout)
{
    ExoIconView *icon_view = EXO_ICON_VIEW (layout);

    g_list_foreach (icon_view->priv->cell_list, (GFunc) free_cell_info, NULL);
    g_list_free (icon_view->priv->cell_list);
    icon_view->priv->cell_list = NULL;
    icon_view->priv->n_cells = 0;

    exo_icon_view_invalidate_sizes (icon_view);
}



static void  exo_icon_view_cell_layout_set_cell_data_func (GtkCellLayout         *layout, GtkCellRenderer       *cell, GtkCellLayoutDataFunc  func, gpointer               func_data, GDestroyNotify         destroy)
{
    ExoIconViewCellInfo *info;
    GDestroyNotify       notify;

    info = exo_icon_view_get_cell_info (EXO_ICON_VIEW (layout), cell);
    if (G_LIKELY (info != NULL))
    {
        if (G_UNLIKELY (info->destroy != NULL))
        {
            notify = info->destroy;
            info->destroy = NULL;
            (*notify) (info->func_data);
        }

        info->func = func;
        info->func_data = func_data;
        info->destroy = destroy;

        exo_icon_view_invalidate_sizes (EXO_ICON_VIEW (layout));
    }
}



static void  exo_icon_view_cell_layout_clear_attributes (GtkCellLayout   *layout, GtkCellRenderer *renderer)
{
    ExoIconViewCellInfo *info;

    info = exo_icon_view_get_cell_info (EXO_ICON_VIEW (layout), renderer);
    if (G_LIKELY (info != NULL))
    {
        free_cell_attributes (info);

        exo_icon_view_invalidate_sizes (EXO_ICON_VIEW (layout));
    }
}



static void  exo_icon_view_cell_layout_reorder (GtkCellLayout   *layout, GtkCellRenderer *cell, gint             position)
{
    ExoIconViewCellInfo *info;
    ExoIconView         *icon_view = EXO_ICON_VIEW (layout);
    GList               *lp;
    gint                 n;

    icon_view = EXO_ICON_VIEW (layout);

    info = exo_icon_view_get_cell_info (icon_view, cell);
    if (G_LIKELY (info != NULL))
    {
        lp = g_list_find (icon_view->priv->cell_list, info);

        icon_view->priv->cell_list = g_list_remove_link (icon_view->priv->cell_list, lp);
        icon_view->priv->cell_list = g_list_insert (icon_view->priv->cell_list, info, position);

        for (lp = icon_view->priv->cell_list, n = 0; lp != NULL; lp = lp->next, ++n)
            EXO_ICON_VIEW_CELL_INFO (lp->data)->position = n;

        exo_icon_view_invalidate_sizes (icon_view);
    }
}



/**
 * exo_icon_view_new:
 *
 * Creates a new #ExoIconView widget
 *
 * Return value: A newly created #ExoIconView widget
 **/
GtkWidget*
exo_icon_view_new (void)
{
    return g_object_new (EXO_TYPE_ICON_VIEW, NULL);
}



/**
 * exo_icon_view_new_with_model:
 * @model: The model.
 *
 * Creates a new #ExoIconView widget with the model @model.
 *
 * Return value: A newly created #ExoIconView widget.
 **/
GtkWidget*
exo_icon_view_new_with_model (GtkTreeModel *model)
{
    g_return_val_if_fail (model == NULL || GTK_IS_TREE_MODEL (model), NULL);

    return g_object_new (EXO_TYPE_ICON_VIEW, "model", model, NULL);
}



/**
 * exo_icon_view_widget_to_icon_coords:
 * @icon_view : a #ExoIconView.
 * @wx        : widget x coordinate.
 * @wy        : widget y coordinate.
 * @ix        : return location for icon x coordinate or %NULL.
 * @iy        : return location for icon y coordinate or %NULL.
 *
 * Converts widget coordinates to coordinates for the icon window
 * (the full scrollable area of the icon view).
 **/
void
exo_icon_view_widget_to_icon_coords (const ExoIconView *icon_view,
                                     gint               wx,
                                     gint               wy,
                                     gint              *ix,
                                     gint              *iy)
{
    g_return_if_fail (EXO_IS_ICON_VIEW (icon_view));

    if (G_LIKELY (ix != NULL))
        *ix = wx + gtk_adjustment_get_value (icon_view->priv->hadjustment);
    if (G_LIKELY (iy != NULL))
        *iy = wy + gtk_adjustment_get_value (icon_view->priv->vadjustment);
}



/**
 * exo_icon_view_icon_to_widget_coords:
 * @icon_view : a #ExoIconView.
 * @ix        : icon x coordinate.
 * @iy        : icon y coordinate.
 * @wx        : return location for widget x coordinate or %NULL.
 * @wy        : return location for widget y coordinate or %NULL.
 *
 * Converts icon view coordinates (coordinates in full scrollable
 * area of the icon view) to widget coordinates.
 **/
void
exo_icon_view_icon_to_widget_coords (const ExoIconView *icon_view,
                                     gint               ix,
                                     gint               iy,
                                     gint              *wx,
                                     gint              *wy)
{
    g_return_if_fail (EXO_IS_ICON_VIEW (icon_view));

    if (G_LIKELY (wx != NULL))
        *wx = ix - gtk_adjustment_get_value (icon_view->priv->hadjustment);
    if (G_LIKELY (wy != NULL))
        *wy = iy - gtk_adjustment_get_value (icon_view->priv->vadjustment);
}



/**
 * exo_icon_view_get_path_at_pos:
 * @icon_view : A #ExoIconView.
 * @x         : The x position to be identified
 * @y         : The y position to be identified
 *
 * Finds the path at the point (@x, @y), relative to widget coordinates.
 * See exo_icon_view_get_item_at_pos(), if you are also interested in
 * the cell at the specified position.
 *
 * Return value: The #GtkTreePath corresponding to the icon or %NULL
 *               if no icon exists at that position.
 **/
GtkTreePath*
exo_icon_view_get_path_at_pos (const ExoIconView *icon_view, gint               x, gint               y)
{
    ExoIconViewItem *item;

    g_return_val_if_fail (EXO_IS_ICON_VIEW (icon_view), NULL);

    /* translate the widget coordinates to icon window coordinates */
    /*
  NOTE by Hong Jen Yee: This should be disabled for pcmanfm to work. So weird.
  x += icon_view->priv->hadjustment->value;
  y += icon_view->priv->vadjustment->value;
  */
    item = exo_icon_view_get_item_at_coords (icon_view, x, y, TRUE, NULL);

    return (item != NULL) ? gtk_tree_path_new_from_indices (g_list_index (icon_view->priv->items, item), -1) : NULL;
}



/**
 * exo_icon_view_get_item_at_pos:
 * @icon_view: A #ExoIconView.
 * @x: The x position to be identified
 * @y: The y position to be identified
 * @path: Return location for the path, or %NULL
 * @cell: Return location for the renderer responsible for the cell
 *   at (@x, @y), or %NULL
 *
 * Finds the path at the point (@x, @y), relative to widget coordinates.
 * In contrast to exo_icon_view_get_path_at_pos(), this function also
 * obtains the cell at the specified position. The returned path should
 * be freed with gtk_tree_path_free().
 *
 * Return value: %TRUE if an item exists at the specified position
 **/
gboolean
exo_icon_view_get_item_at_pos (const ExoIconView *icon_view,
                               gint               x,
                               gint               y,
                               GtkTreePath      **path,
                               GtkCellRenderer  **cell)
{
    ExoIconViewCellInfo *info;
    ExoIconViewItem     *item;

    g_return_val_if_fail (EXO_IS_ICON_VIEW (icon_view), FALSE);

    item = exo_icon_view_get_item_at_coords (icon_view, x, y, TRUE, &info);

    if (G_LIKELY (path != NULL))
        *path = (item != NULL) ? gtk_tree_path_new_from_indices (g_list_index (icon_view->priv->items, item), -1) : NULL;

    if (G_LIKELY (cell != NULL))
        *cell = (info != NULL) ? info->cell : NULL;

    return (item != NULL);
}



/**
 * exo_icon_view_get_visible_range:
 * @icon_view  : A #ExoIconView
 * @start_path : Return location for start of region, or %NULL
 * @end_path   : Return location for end of region, or %NULL
 *
 * Sets @start_path and @end_path to be the first and last visible path.
 * Note that there may be invisible paths in between.
 *
 * Both paths should be freed with gtk_tree_path_free() after use.
 *
 * Return value: %TRUE, if valid paths were placed in @start_path and @end_path
 **/
gboolean  exo_icon_view_get_visible_range (const ExoIconView *icon_view, GtkTreePath      **start_path, GtkTreePath      **end_path)
{
    const ExoIconViewPrivate *priv = icon_view->priv;
    const ExoIconViewItem    *item;
    const GList              *lp;
    gint                      start_index = -1;
    gint                      end_index = -1;
    gint                      i;

    g_return_val_if_fail (EXO_IS_ICON_VIEW (icon_view), FALSE);

    if (priv->hadjustment == NULL || priv->vadjustment == NULL)
        return FALSE;

    if (start_path == NULL && end_path == NULL)
        return FALSE;

    for (i = 0, lp = priv->items; lp != NULL; ++i, lp = lp->next)
    {
        item = (const ExoIconViewItem *) lp->data;
        if ((item->area.x + item->area.width >= (gint) gtk_adjustment_get_value (priv->hadjustment)) &&
                (item->area.y + item->area.height >= (gint) gtk_adjustment_get_value (priv->vadjustment)) &&
                (item->area.x <= (gint) (gtk_adjustment_get_value (priv->hadjustment) + gtk_adjustment_get_page_size (priv->hadjustment))) &&
                (item->area.y <= (gint) (gtk_adjustment_get_value (priv->vadjustment) + gtk_adjustment_get_page_size (priv->vadjustment))))
        {
            if (start_index == -1)
                start_index = i;
            end_index = i;
        }
    }

    if (start_path != NULL && start_index != -1)
        *start_path = gtk_tree_path_new_from_indices (start_index, -1);
    if (end_path != NULL && end_index != -1)
        *end_path = gtk_tree_path_new_from_indices (end_index, -1);

    return (start_index != -1);
}



/**
 * exo_icon_view_selected_foreach:
 * @icon_view : A #ExoIconView.
 * @func      : The funcion to call for each selected icon.
 * @data      : User data to pass to the function.
 *
 * Calls a function for each selected icon. Note that the model or
 * selection cannot be modified from within this function.
 **/
void  exo_icon_view_selected_foreach (ExoIconView           *icon_view, ExoIconViewForeachFunc func, gpointer               data)
{
    GtkTreePath *path;
    GList       *lp;

    path = gtk_tree_path_new_first ();
    for (lp = icon_view->priv->items; lp != NULL; lp = lp->next)
    {
        if (EXO_ICON_VIEW_ITEM (lp->data)->selected)
            (*func) (icon_view, path, data);
        gtk_tree_path_next (path);
    }
    gtk_tree_path_free (path);
}



/**
 * exo_icon_view_get_selection_mode:
 * @icon_view : A #ExoIconView.
 *
 * Gets the selection mode of the @icon_view.
 *
 * Return value: the current selection mode
 **/
GtkSelectionMode
exo_icon_view_get_selection_mode (const ExoIconView *icon_view)
{
    g_return_val_if_fail (EXO_IS_ICON_VIEW (icon_view), GTK_SELECTION_SINGLE);
    return icon_view->priv->selection_mode;
}



/**
 * exo_icon_view_set_selection_mode:
 * @icon_view : A #ExoIconView.
 * @mode      : The selection mode
 *
 * Sets the selection mode of the @icon_view.
 **/
void  exo_icon_view_set_selection_mode (ExoIconView      *icon_view, GtkSelectionMode  mode)
{
    g_return_if_fail (EXO_IS_ICON_VIEW (icon_view));

    if (G_LIKELY (mode != icon_view->priv->selection_mode))
    {
        if (mode == GTK_SELECTION_NONE || icon_view->priv->selection_mode == GTK_SELECTION_MULTIPLE)
            exo_icon_view_unselect_all (icon_view);

        icon_view->priv->selection_mode = mode;

        g_object_notify (G_OBJECT (icon_view), "selection-mode");
    }
}



/**
 * exo_icon_view_get_layout_mode:
 * @icon_view : A #ExoIconView.
 *
 * Returns the #ExoIconViewLayoutMode used to layout the
 * items in the @icon_view.
 *
 * Return value: the layout mode of @icon_view.
 **/
ExoIconViewLayoutMode
exo_icon_view_get_layout_mode (const ExoIconView *icon_view)
{
    g_return_val_if_fail (EXO_IS_ICON_VIEW (icon_view), EXO_ICON_VIEW_LAYOUT_ROWS);
    return icon_view->priv->layout_mode;
}



/**
 * exo_icon_view_set_layout_mode:
 * @icon_view   : a #ExoIconView.
 * @layout_mode : the new #ExoIconViewLayoutMode for @icon_view.
 *
 * Sets the layout mode of @icon_view to @layout_mode.
 **/
void  exo_icon_view_set_layout_mode (ExoIconView          *icon_view, ExoIconViewLayoutMode layout_mode)
{
    g_return_if_fail (EXO_IS_ICON_VIEW (icon_view));

    /* check if we have a new setting */
    if (G_LIKELY (icon_view->priv->layout_mode != layout_mode))
    {
        /* apply the new setting */
        icon_view->priv->layout_mode = layout_mode;

        /* cancel any active cell editor */
        exo_icon_view_stop_editing (icon_view, TRUE);

        /* invalidate the current item sizes */
        exo_icon_view_invalidate_sizes (icon_view);
        exo_icon_view_queue_layout (icon_view);

        /* notify listeners */
        g_object_notify (G_OBJECT (icon_view), "layout-mode");
    }
}



/**
 * exo_icon_view_get_model:
 * @icon_view : a #ExoIconView
 *
 * Returns the model the #ExoIconView is based on. Returns %NULL if the
 * model is unset.
 *
 * Return value: A #GtkTreeModel, or %NULL if none is currently being used.
 **/
GtkTreeModel*
exo_icon_view_get_model (const ExoIconView *icon_view)
{
    g_return_val_if_fail (EXO_IS_ICON_VIEW (icon_view), NULL);
    return icon_view->priv->model;
}



/**
 * exo_icon_view_set_model:
 * @icon_view : A #ExoIconView.
 * @model     : The model.
 *
 * Sets the model for a #ExoIconView.
 * If the @icon_view already has a model set, it will remove
 * it before setting the new model.  If @model is %NULL, then
 * it will unset the old model.
 **/
void  exo_icon_view_set_model (ExoIconView  *icon_view, GtkTreeModel *model)
{
    ExoIconViewItem *item;
    GtkTreeIter      iter;
    GList           *items = NULL;
    GList           *lp;
    gint             n;

    g_return_if_fail (EXO_IS_ICON_VIEW (icon_view));
    g_return_if_fail (model == NULL || GTK_IS_TREE_MODEL (model));

    /* verify that we don't already use that model */
    if (G_UNLIKELY (icon_view->priv->model == model))
        return;

    /* verify the new model */
    if (G_LIKELY (model != NULL))
    {
        g_return_if_fail (gtk_tree_model_get_flags (model) & GTK_TREE_MODEL_LIST_ONLY);

        if (G_UNLIKELY (icon_view->priv->pixbuf_column != -1))
            g_return_if_fail (gtk_tree_model_get_column_type (model, icon_view->priv->pixbuf_column) == GDK_TYPE_PIXBUF);

        if (G_UNLIKELY (icon_view->priv->text_column != -1))
            g_return_if_fail (gtk_tree_model_get_column_type (model, icon_view->priv->text_column) == G_TYPE_STRING);

        if (G_UNLIKELY (icon_view->priv->markup_column != -1))
            g_return_if_fail (gtk_tree_model_get_column_type (model, icon_view->priv->markup_column) == G_TYPE_STRING);
    }

    /* be sure to cancel any pending editor */
    exo_icon_view_stop_editing (icon_view, TRUE);

    /* disconnect from the previous model */
    if (G_LIKELY (icon_view->priv->model != NULL))
    {
        /* disconnect signals handlers from the previous model */
        g_signal_handlers_disconnect_by_func (G_OBJECT (icon_view->priv->model), exo_icon_view_row_changed, icon_view);
        g_signal_handlers_disconnect_by_func (G_OBJECT (icon_view->priv->model), exo_icon_view_row_inserted, icon_view);
        g_signal_handlers_disconnect_by_func (G_OBJECT (icon_view->priv->model), exo_icon_view_row_deleted, icon_view);
        g_signal_handlers_disconnect_by_func (G_OBJECT (icon_view->priv->model), exo_icon_view_rows_reordered, icon_view);

        /* release our reference on the model */
        g_object_unref (G_OBJECT (icon_view->priv->model));

        /* drop all items belonging to the previous model */
        for (lp = icon_view->priv->items; lp != NULL; lp = lp->next)
        {
            g_free (EXO_ICON_VIEW_ITEM (lp->data)->box);
            _exo_slice_free (ExoIconViewItem, lp->data);
        }
        g_list_free (icon_view->priv->items);
        icon_view->priv->items = NULL;

        /* reset statistics */
        icon_view->priv->search_column = -1;
        icon_view->priv->anchor_item = NULL;
        icon_view->priv->cursor_item = NULL;
        icon_view->priv->prelit_item = NULL;
        icon_view->priv->last_single_clicked = NULL;
        icon_view->priv->width = 0;
        icon_view->priv->height = 0;

        /* cancel any pending single click timer */
        if (G_UNLIKELY (icon_view->priv->single_click_timeout_id != 0))
            g_source_remove (icon_view->priv->single_click_timeout_id);

        /* reset cursor when in single click mode and realized */
        if (G_UNLIKELY (icon_view->priv->single_click && gtk_widget_get_realized ( GTK_WIDGET (icon_view))))
            gdk_window_set_cursor (icon_view->priv->bin_window, NULL);
    }

    /* be sure to drop any previous scroll_to_path reference,
   * as it points to the old (no longer valid) model.
   */
    if (G_UNLIKELY (icon_view->priv->scroll_to_path != NULL))
    {
        gtk_tree_row_reference_free (icon_view->priv->scroll_to_path);
        icon_view->priv->scroll_to_path = NULL;
    }

    /* activate the new model */
    icon_view->priv->model = model;

    /* connect to the new model */
    if (G_LIKELY (model != NULL))
    {
        /* take a reference on the model */
        g_object_ref (G_OBJECT (model));

        /* connect signals */
        g_signal_connect (G_OBJECT (model), "row-changed", G_CALLBACK (exo_icon_view_row_changed), icon_view);
        g_signal_connect (G_OBJECT (model), "row-inserted", G_CALLBACK (exo_icon_view_row_inserted), icon_view);
        g_signal_connect (G_OBJECT (model), "row-deleted", G_CALLBACK (exo_icon_view_row_deleted), icon_view);
        g_signal_connect (G_OBJECT (model), "rows-reordered", G_CALLBACK (exo_icon_view_rows_reordered), icon_view);

        /* check if the new model supports persistent iterators */
        if (gtk_tree_model_get_flags (model) & GTK_TREE_MODEL_ITERS_PERSIST)
            EXO_ICON_VIEW_SET_FLAG (icon_view, EXO_ICON_VIEW_ITERS_PERSIST);
        else
            EXO_ICON_VIEW_UNSET_FLAG (icon_view, EXO_ICON_VIEW_ITERS_PERSIST);

        /* determine an appropriate search column */
        if (icon_view->priv->search_column <= 0)
        {
            /* we simply use the first string column */
            for (n = 0; n < gtk_tree_model_get_n_columns (model); ++n)
                if (g_value_type_transformable (gtk_tree_model_get_column_type (model, n), G_TYPE_STRING))
                {
                    icon_view->priv->search_column = n;
                    break;
                }
        }

        /* build up the initial items list */
        if (gtk_tree_model_get_iter_first (model, &iter))
        {
            do
            {
                item = _exo_slice_new0 (ExoIconViewItem);
                item->iter = iter;
                item->area.width = -1;
                items = g_list_prepend (items, item);
            }
            while (gtk_tree_model_iter_next (model, &iter));
        }
        icon_view->priv->items = g_list_reverse (items);

        /* layout the new items */
        exo_icon_view_queue_layout (icon_view);
    }

    /* hide the interactive search dialog (if any) */
    if (G_LIKELY (icon_view->priv->search_window != NULL))
        exo_icon_view_search_dialog_hide (icon_view->priv->search_window, icon_view);

    /* notify listeners */
    g_object_notify (G_OBJECT (icon_view), "model");

    if (gtk_widget_get_realized (GTK_WIDGET (icon_view)))
        gtk_widget_queue_resize (GTK_WIDGET (icon_view));
}



static void  update_text_cell (ExoIconView *icon_view)
{
    ExoIconViewCellInfo *info;
    GList *l;
    gint i;

    if (icon_view->priv->text_column == -1 &&
            icon_view->priv->markup_column == -1)
    {
        if (icon_view->priv->text_cell != -1)
        {
            info = g_list_nth_data (icon_view->priv->cell_list, icon_view->priv->text_cell);

            icon_view->priv->cell_list = g_list_remove (icon_view->priv->cell_list, info);

            free_cell_info (info);

            icon_view->priv->n_cells--;
            icon_view->priv->text_cell = -1;
        }
    } else {
        if (icon_view->priv->text_cell == -1)
        {
            GtkCellRenderer *cell = gtk_cell_renderer_text_new ();
            gtk_cell_layout_pack_end (GTK_CELL_LAYOUT (icon_view), cell, FALSE);
            for (l = icon_view->priv->cell_list, i = 0; l; l = l->next, i++)
            {
                info = l->data;
                if (info->cell == cell)
                {
                    icon_view->priv->text_cell = i;
                    break;
                }
            }
        }

        info = g_list_nth_data (icon_view->priv->cell_list, icon_view->priv->text_cell);

        if (icon_view->priv->markup_column != -1)
            gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (icon_view), info->cell, "markup", icon_view->priv->markup_column, NULL);
        else
            gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (icon_view), info->cell, "text", icon_view->priv->text_column, NULL);
    }
}

static void  update_pixbuf_cell (ExoIconView *icon_view)
{
    ExoIconViewCellInfo *info;
    GList *l;
    gint i;

    if (icon_view->priv->pixbuf_column == -1)
    {
        if (icon_view->priv->pixbuf_cell != -1)
        {
            info = g_list_nth_data (icon_view->priv->cell_list, icon_view->priv->pixbuf_cell);

            icon_view->priv->cell_list = g_list_remove (icon_view->priv->cell_list, info);

            free_cell_info (info);

            icon_view->priv->n_cells--;
            icon_view->priv->pixbuf_cell = -1;
        }
    } else {
        if (icon_view->priv->pixbuf_cell == -1)
        {
            GtkCellRenderer *cell = gtk_cell_renderer_pixbuf_new ();

            gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (icon_view), cell, FALSE);
            for (l = icon_view->priv->cell_list, i = 0; l; l = l->next, i++)
            {
                info = l->data;
                if (info->cell == cell)
                {
                    icon_view->priv->pixbuf_cell = i;
                    break;
                }
            }
        }

        info = g_list_nth_data (icon_view->priv->cell_list, icon_view->priv->pixbuf_cell);

        gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (icon_view), info->cell, "pixbuf", icon_view->priv->pixbuf_column, NULL);
    }
}



/**
 * exo_icon_view_get_text_column:
 * @icon_view: A #ExoIconView.
 *
 * Returns the column with text for @icon_view.
 *
 * Returns: the text column, or -1 if it's unset.
 *
 * Deprecated: Use the more powerful #GtkCellRenderer<!---->s instead, as #ExoIconView
 *             now implements #GtkCellLayout.
 */
gint
exo_icon_view_get_text_column (const ExoIconView *icon_view)
{
    g_return_val_if_fail (EXO_IS_ICON_VIEW (icon_view), -1);
    return icon_view->priv->text_column;
}



/**
 * exo_icon_view_set_text_column:
 * @icon_view: A #ExoIconView.
 * @column: A column in the currently used model.
 *
 * Sets the column with text for @icon_view to be @column. The text
 * column must be of type #G_TYPE_STRING.
 *
 * Deprecated: Use the more powerful #GtkCellRenderer<!---->s instead, as #ExoIconView
 *             now implements #GtkCellLayout.
 **/
void  exo_icon_view_set_text_column (ExoIconView *icon_view, gint         column)
{
    GType column_type;

    if (G_UNLIKELY (column == icon_view->priv->text_column))
        return;

    if (column == -1)
    {
        icon_view->priv->text_column = -1;
    } else {
        if (icon_view->priv->model != NULL)
        {
            column_type = gtk_tree_model_get_column_type (icon_view->priv->model, column);
            g_return_if_fail (column_type == G_TYPE_STRING);
        }

        icon_view->priv->text_column = column;
    }

    exo_icon_view_stop_editing (icon_view, TRUE);

    update_text_cell (icon_view);

    exo_icon_view_invalidate_sizes (icon_view);

    g_object_notify (G_OBJECT (icon_view), "text-column");
}



/**
 * exo_icon_view_get_markup_column:
 * @icon_view: A #ExoIconView.
 *
 * Returns the column with markup text for @icon_view.
 *
 * Returns: the markup column, or -1 if it's unset.
 *
 * Deprecated: Use the more powerful #GtkCellRenderer<!---->s instead, as #ExoIconView
 *             now implements #GtkCellLayout.
 */
gint
exo_icon_view_get_markup_column (const ExoIconView *icon_view)
{
    g_return_val_if_fail (EXO_IS_ICON_VIEW (icon_view), -1);
    return icon_view->priv->markup_column;
}



/**
 * exo_icon_view_set_markup_column:
 * @icon_view : A #ExoIconView.
 * @column    : A column in the currently used model.
 *
 * Sets the column with markup information for @icon_view to be
 * @column. The markup column must be of type #G_TYPE_STRING.
 * If the markup column is set to something, it overrides
 * the text column set by exo_icon_view_set_text_column().
 *
 * Deprecated: Use the more powerful #GtkCellRenderer<!---->s instead, as #ExoIconView
 *             now implements #GtkCellLayout.
 **/
void  exo_icon_view_set_markup_column (ExoIconView *icon_view, gint         column)
{
    if (G_UNLIKELY (column == icon_view->priv->markup_column))
        return;

    if (column == -1)
        icon_view->priv->markup_column = -1;
    else
    {
        if (icon_view->priv->model != NULL)
        {
            GType column_type;

            column_type = gtk_tree_model_get_column_type (icon_view->priv->model, column);

            g_return_if_fail (column_type == G_TYPE_STRING);
        }

        icon_view->priv->markup_column = column;
    }

    exo_icon_view_stop_editing (icon_view, TRUE);

    update_text_cell (icon_view);

    exo_icon_view_invalidate_sizes (icon_view);

    g_object_notify (G_OBJECT (icon_view), "markup-column");
}



/**
 * exo_icon_view_get_pixbuf_column:
 * @icon_view : A #ExoIconView.
 *
 * Returns the column with pixbufs for @icon_view.
 *
 * Returns: the pixbuf column, or -1 if it's unset.
 *
 * Deprecated: Use the more powerful #GtkCellRenderer<!---->s instead, as #ExoIconView
 *             now implements #GtkCellLayout.
 */
gint
exo_icon_view_get_pixbuf_column (const ExoIconView *icon_view)
{
    g_return_val_if_fail (EXO_IS_ICON_VIEW (icon_view), -1);
    return icon_view->priv->pixbuf_column;
}



/**
 * exo_icon_view_set_pixbuf_column:
 * @icon_view : A #ExoIconView.
 * @column    : A column in the currently used model.
 *
 * Sets the column with pixbufs for @icon_view to be @column. The pixbuf
 * column must be of type #GDK_TYPE_PIXBUF
 *
 * Deprecated: Use the more powerful #GtkCellRenderer<!---->s instead, as #ExoIconView
 *             now implements #GtkCellLayout.
 **/
void  exo_icon_view_set_pixbuf_column (ExoIconView *icon_view, gint         column)
{
    GType column_type;

    if (G_UNLIKELY (column == icon_view->priv->pixbuf_column))
        return;

    if (column == -1)
    {
        icon_view->priv->pixbuf_column = -1;
    } else {
        if (icon_view->priv->model != NULL)
        {
            column_type = gtk_tree_model_get_column_type (icon_view->priv->model, column);
            g_return_if_fail (column_type == GDK_TYPE_PIXBUF);
        }

        icon_view->priv->pixbuf_column = column;
    }

    exo_icon_view_stop_editing (icon_view, TRUE);

    update_pixbuf_cell (icon_view);

    exo_icon_view_invalidate_sizes (icon_view);

    g_object_notify (G_OBJECT (icon_view), "pixbuf-column");

}


/**
 * exo_icon_view_select_path:
 * @icon_view : A #ExoIconView.
 * @path      : The #GtkTreePath to be selected.
 *
 * Selects the row at @path.
 **/
void  exo_icon_view_select_path (ExoIconView *icon_view, GtkTreePath *path)
{
    ExoIconViewItem *item;

    g_return_if_fail (EXO_IS_ICON_VIEW (icon_view));
    g_return_if_fail (icon_view->priv->model != NULL);
    g_return_if_fail (gtk_tree_path_get_depth (path) > 0);

    item = g_list_nth_data (icon_view->priv->items, gtk_tree_path_get_indices(path)[0]);
    if (G_LIKELY (item != NULL))
        exo_icon_view_select_item (icon_view, item);
}



/**
 * exo_icon_view_unselect_path:
 * @icon_view : A #ExoIconView.
 * @path      : The #GtkTreePath to be unselected.
 *
 * Unselects the row at @path.
 **/
void  exo_icon_view_unselect_path (ExoIconView *icon_view, GtkTreePath *path)
{
    ExoIconViewItem *item;

    g_return_if_fail (EXO_IS_ICON_VIEW (icon_view));
    g_return_if_fail (icon_view->priv->model != NULL);
    g_return_if_fail (gtk_tree_path_get_depth (path) > 0);

    item = g_list_nth_data (icon_view->priv->items, gtk_tree_path_get_indices(path)[0]);
    if (G_LIKELY (item != NULL))
        exo_icon_view_unselect_item (icon_view, item);
}



/**
 * exo_icon_view_get_selected_items:
 * @icon_view: A #ExoIconView.
 *
 * Creates a list of paths of all selected items. Additionally, if you are
 * planning on modifying the model after calling this function, you may
 * want to convert the returned list into a list of #GtkTreeRowReference<!-- -->s.
 * To do this, you can use gtk_tree_row_reference_new().
 *
 * To free the return value, use:
 * <informalexample><programlisting>
 * g_list_foreach (list, gtk_tree_path_free, NULL);
 * g_list_free (list);
 * </programlisting></informalexample>
 *
 * Return value: A #GList containing a #GtkTreePath for each selected row.
 **/
GList*
exo_icon_view_get_selected_items (const ExoIconView *icon_view)
{
    GList *selected = NULL;
    GList *lp;
    gint   i;

    g_return_val_if_fail (EXO_IS_ICON_VIEW (icon_view), NULL);

    for (i = 0, lp = icon_view->priv->items; lp != NULL; ++i, lp = lp->next)
    {
        if (EXO_ICON_VIEW_ITEM (lp->data)->selected)
            selected = g_list_append (selected, gtk_tree_path_new_from_indices (i, -1));
    }

    return selected;
}



/**
 * exo_icon_view_select_all:
 * @icon_view : A #ExoIconView.
 *
 * Selects all the icons. @icon_view must has its selection mode set
 * to #GTK_SELECTION_MULTIPLE.
 **/
void  exo_icon_view_select_all (ExoIconView *icon_view)
{
    GList *items;
    gboolean dirty = FALSE;

    g_return_if_fail (EXO_IS_ICON_VIEW (icon_view));

    if (icon_view->priv->selection_mode != GTK_SELECTION_MULTIPLE)
        return;

    for (items = icon_view->priv->items; items; items = items->next)
    {
        ExoIconViewItem *item = items->data;

        if (!item->selected)
        {
            dirty = TRUE;
            item->selected = TRUE;
            exo_icon_view_queue_draw_item (icon_view, item);
        }
    }

    if (dirty)
        g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
}



/**
 * exo_icon_view_unselect_all:
 * @icon_view : A #ExoIconView.
 *
 * Unselects all the icons.
 **/
void  exo_icon_view_unselect_all (ExoIconView *icon_view)
{
    g_return_if_fail (EXO_IS_ICON_VIEW (icon_view));

    if (G_UNLIKELY (icon_view->priv->selection_mode == GTK_SELECTION_BROWSE))
        return;

    if (exo_icon_view_unselect_all_internal (icon_view))
        g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0);
}



/**
 * exo_icon_view_path_is_selected:
 * @icon_view: A #ExoIconView.
 * @path: A #GtkTreePath to check selection on.
 *
 * Returns %TRUE if the icon pointed to by @path is currently
 * selected. If @icon does not point to a valid location, %FALSE is returned.
 *
 * Return value: %TRUE if @path is selected.
 **/
gboolean  exo_icon_view_path_is_selected (const ExoIconView *icon_view, GtkTreePath       *path)
{
    ExoIconViewItem *item;

    g_return_val_if_fail (EXO_IS_ICON_VIEW (icon_view), FALSE);
    g_return_val_if_fail (icon_view->priv->model != NULL, FALSE);
    g_return_val_if_fail (gtk_tree_path_get_depth (path) > 0, FALSE);

    item = g_list_nth_data (icon_view->priv->items, gtk_tree_path_get_indices(path)[0]);

    return (item != NULL && item->selected);
}



/**
 * exo_icon_view_item_activated:
 * @icon_view : a #ExoIconView
 * @path      : the #GtkTreePath to be activated
 *
 * Activates the item determined by @path.
 **/
void  exo_icon_view_item_activated (ExoIconView *icon_view, GtkTreePath *path)
{
    g_return_if_fail (EXO_IS_ICON_VIEW (icon_view));
    g_return_if_fail (gtk_tree_path_get_depth (path) > 0);

    g_signal_emit (icon_view, icon_view_signals[ITEM_ACTIVATED], 0, path);
}



/**
 * exo_icon_view_get_cursor:
 * @icon_view : A #ExoIconView
 * @path      : Return location for the current cursor path, or %NULL
 * @cell      : Return location the current focus cell, or %NULL
 *
 * Fills in @path and @cell with the current cursor path and cell.
 * If the cursor isn't currently set, then *@path will be %NULL.
 * If no cell currently has focus, then *@cell will be %NULL.
 *
 * The returned #GtkTreePath must be freed with gtk_tree_path_free().
 *
 * Return value: %TRUE if the cursor is set.
 **/
gboolean  exo_icon_view_get_cursor (const ExoIconView *icon_view, GtkTreePath      **path, GtkCellRenderer  **cell)
{
    ExoIconViewCellInfo *info;
    ExoIconViewItem     *item;

    g_return_val_if_fail (EXO_IS_ICON_VIEW (icon_view), FALSE);

    item = icon_view->priv->cursor_item;
    info = (icon_view->priv->cursor_cell < 0) ? NULL : g_list_nth_data (icon_view->priv->cell_list, icon_view->priv->cursor_cell);

    if (G_LIKELY (path != NULL))
        *path = (item != NULL) ? gtk_tree_path_new_from_indices (g_list_index (icon_view->priv->items, item), -1) : NULL;

    if (G_LIKELY (cell != NULL))
        *cell = (info != NULL) ? info->cell : NULL;

    return (item != NULL);
}



/**
 * exo_icon_view_set_cursor:
 * @icon_view     : a #ExoIconView
 * @path          : a #GtkTreePath
 * @cell          : a #GtkCellRenderer or %NULL
 * @start_editing : %TRUE if the specified cell should start being edited.
 *
 * Sets the current keyboard focus to be at @path, and selects it.  This is
 * useful when you want to focus the user's attention on a particular item.
 * If @cell is not %NULL, then focus is given to the cell specified by
 * it. Additionally, if @start_editing is %TRUE, then editing should be
 * started in the specified cell.
 *
 * This function is often followed by <literal>gtk_widget_grab_focus
 * (icon_view)</literal> in order to give keyboard focus to the widget.
 * Please note that editing can only happen when the widget is realized.
 **/
void  exo_icon_view_set_cursor (ExoIconView     *icon_view, GtkTreePath     *path, GtkCellRenderer *cell, gboolean         start_editing)
{
    ExoIconViewItem *item;
    ExoIconViewCellInfo *info =  NULL;
    GList *l;
    gint i, cell_pos;

    g_return_if_fail (EXO_IS_ICON_VIEW (icon_view));
    g_return_if_fail (path != NULL);
    g_return_if_fail (cell == NULL || GTK_IS_CELL_RENDERER (cell));

    exo_icon_view_stop_editing (icon_view, TRUE);

    item = g_list_nth_data (icon_view->priv->items, gtk_tree_path_get_indices(path)[0]);
    if (G_UNLIKELY (item == NULL))
        return;

    cell_pos = -1;
    for (l = icon_view->priv->cell_list, i = 0; l; l = l->next, i++)
    {
        info = l->data;

        if (info->cell == cell)
        {
            cell_pos = i;
            break;
        }

        info = NULL;
    }

    /* place the cursor on the item */
    exo_icon_view_set_cursor_item (icon_view, item, cell_pos);

    /* scroll to the item (maybe delayed) */
    exo_icon_view_scroll_to_path (icon_view, path, FALSE, 0.0f, 0.0f);

    if (start_editing)
        exo_icon_view_start_editing (icon_view, item, info, NULL);
}



/**
 * exo_icon_view_scroll_to_path:
 * @icon_view: A #ExoIconView.
 * @path: The path of the item to move to.
 * @use_align: whether to use alignment arguments, or %FALSE.
 * @row_align: The vertical alignment of the item specified by @path.
 * @col_align: The horizontal alignment of the item specified by @column.
 *
 * Moves the alignments of @icon_view to the position specified by @path.
 * @row_align determines where the row is placed, and @col_align determines where
 * @column is placed.  Both are expected to be between 0.0 and 1.0.
 * 0.0 means left/top alignment, 1.0 means right/bottom alignment, 0.5 means center.
 *
 * If @use_align is %FALSE, then the alignment arguments are ignored, and the
 * tree does the minimum amount of work to scroll the item onto the screen.
 * This means that the item will be scrolled to the edge closest to its current
 * position.  If the item is currently visible on the screen, nothing is done.
 *
 * This function only works if the model is set, and @path is a valid row on the
 * model.  If the model changes before the @tree_view is realized, the centered
 * path will be modified to reflect this change.
 **/
void  exo_icon_view_scroll_to_path (ExoIconView *icon_view,
                              GtkTreePath *path,
                              gboolean     use_align,
                              gfloat       row_align,
                              gfloat       col_align)
{
    ExoIconViewItem *item;

    g_return_if_fail (EXO_IS_ICON_VIEW (icon_view));
    g_return_if_fail (gtk_tree_path_get_depth (path) > 0);
    g_return_if_fail (row_align >= 0.0 && row_align <= 1.0);
    g_return_if_fail (col_align >= 0.0 && col_align <= 1.0);

    /* Delay scrolling if either not realized or pending layout() */
    if (!gtk_widget_get_realized (GTK_WIDGET (icon_view)) || icon_view->priv->layout_idle_id != 0)
    {
        /* release the previous scroll_to_path reference */
        if (G_UNLIKELY (icon_view->priv->scroll_to_path != NULL))
            gtk_tree_row_reference_free (icon_view->priv->scroll_to_path);

        /* remember a reference for the new path and settings */
        icon_view->priv->scroll_to_path = gtk_tree_row_reference_new_proxy (G_OBJECT (icon_view), icon_view->priv->model, path);
        icon_view->priv->scroll_to_use_align = use_align;
        icon_view->priv->scroll_to_row_align = row_align;
        icon_view->priv->scroll_to_col_align = col_align;
    } else {
        item = g_list_nth_data (icon_view->priv->items, gtk_tree_path_get_indices(path)[0]);
        if (G_UNLIKELY (item == NULL))
            return;

        if (use_align)
        {
            gint x, y;
            gint focus_width;
            gfloat offset, value;
            GtkAllocation allocation;

            gtk_widget_style_get (GTK_WIDGET (icon_view), "focus-line-width", &focus_width, NULL);

            gtk_widget_get_allocation (GTK_WIDGET (icon_view), &allocation);

            gdk_window_get_position (icon_view->priv->bin_window, &x, &y);

            offset =  y + item->area.y - focus_width -
                    row_align * (allocation.height - item->area.height);
            value = CLAMP (gtk_adjustment_get_value (icon_view->priv->vadjustment) + offset,
                           gtk_adjustment_get_lower (icon_view->priv->vadjustment),
                           gtk_adjustment_get_upper (icon_view->priv->vadjustment) - gtk_adjustment_get_page_size (icon_view->priv->vadjustment));
            gtk_adjustment_set_value (icon_view->priv->vadjustment, value);

            offset = x + item->area.x - focus_width -
                    col_align * (allocation.width - item->area.width);
            value = CLAMP (gtk_adjustment_get_value (icon_view->priv->hadjustment) + offset,
                           gtk_adjustment_get_lower (icon_view->priv->hadjustment),
                           gtk_adjustment_get_upper (icon_view->priv->hadjustment) - gtk_adjustment_get_page_size (icon_view->priv->hadjustment));
            gtk_adjustment_set_value (icon_view->priv->hadjustment, value);

            gtk_adjustment_changed (icon_view->priv->hadjustment);
            gtk_adjustment_changed (icon_view->priv->vadjustment);
        } else {
            exo_icon_view_scroll_to_item (icon_view, item);
        }
    }
}



/**
 * exo_icon_view_get_orientation:
 * @icon_view : a #ExoIconView
 *
 * Returns the value of the ::orientation property which determines
 * whether the labels are drawn beside the icons instead of below.
 *
 * Return value: the relative position of texts and icons
 **/
GtkOrientation
exo_icon_view_get_orientation (const ExoIconView *icon_view)
{
    g_return_val_if_fail (EXO_IS_ICON_VIEW (icon_view), GTK_ORIENTATION_VERTICAL);
    return icon_view->priv->orientation;
}



/**
 * exo_icon_view_set_orientation:
 * @icon_view   : a #ExoIconView
 * @orientation : the relative position of texts and icons
 *
 * Sets the ::orientation property which determines whether the labels
 * are drawn beside the icons instead of below.
 **/
void  exo_icon_view_set_orientation (ExoIconView   *icon_view, GtkOrientation orientation)
{
    g_return_if_fail (EXO_IS_ICON_VIEW (icon_view));

    if (G_LIKELY (icon_view->priv->orientation != orientation))
    {
        icon_view->priv->orientation = orientation;

        exo_icon_view_stop_editing (icon_view, TRUE);
        exo_icon_view_invalidate_sizes (icon_view);

        update_text_cell (icon_view);
        update_pixbuf_cell (icon_view);

        g_object_notify (G_OBJECT (icon_view), "orientation");
    }
}



/**
 * exo_icon_view_get_columns:
 * @icon_view: a #ExoIconView
 *
 * Returns the value of the ::columns property.
 *
 * Return value: the number of columns, or -1
 */
gint
exo_icon_view_get_columns (const ExoIconView *icon_view)
{
    g_return_val_if_fail (EXO_IS_ICON_VIEW (icon_view), -1);
    return icon_view->priv->columns;
}



/**
 * exo_icon_view_set_columns:
 * @icon_view : a #ExoIconView
 * @columns   : the number of columns
 *
 * Sets the ::columns property which determines in how
 * many columns the icons are arranged. If @columns is
 * -1, the number of columns will be chosen automatically
 * to fill the available area.
 */
void  exo_icon_view_set_columns (ExoIconView *icon_view, gint         columns)
{
    g_return_if_fail (EXO_IS_ICON_VIEW (icon_view));

    if (G_LIKELY (icon_view->priv->columns != columns))
    {
        icon_view->priv->columns = columns;

        exo_icon_view_stop_editing (icon_view, TRUE);
        exo_icon_view_queue_layout (icon_view);

        g_object_notify (G_OBJECT (icon_view), "columns");
    }
}



/**
 * exo_icon_view_get_item_width:
 * @icon_view: a #ExoIconView
 *
 * Returns the value of the ::item-width property.
 *
 * Return value: the width of a single item, or -1
 */
gint
exo_icon_view_get_item_width (const ExoIconView *icon_view)
{
    g_return_val_if_fail (EXO_IS_ICON_VIEW (icon_view), -1);
    return icon_view->priv->item_width;
}



/**
 * exo_icon_view_set_item_width:
 * @icon_view  : a #ExoIconView
 * @item_width : the width for each item
 *
 * Sets the ::item-width property which specifies the width
 * to use for each item. If it is set to -1, the icon view will
 * automatically determine a suitable item size.
 */
void  exo_icon_view_set_item_width (ExoIconView *icon_view, gint         item_width)
{
    g_return_if_fail (EXO_IS_ICON_VIEW (icon_view));

    if (icon_view->priv->item_width != item_width)
    {
        icon_view->priv->item_width = item_width;

        exo_icon_view_stop_editing (icon_view, TRUE);
        exo_icon_view_invalidate_sizes (icon_view);

        update_text_cell (icon_view);

        g_object_notify (G_OBJECT (icon_view), "item-width");
    }
}



/**
 * exo_icon_view_get_spacing:
 * @icon_view: a #ExoIconView
 *
 * Returns the value of the ::spacing property.
 *
 * Return value: the space between cells
 */
gint
exo_icon_view_get_spacing (const ExoIconView *icon_view)
{
    g_return_val_if_fail (EXO_IS_ICON_VIEW (icon_view), -1);
    return icon_view->priv->spacing;
}



/**
 * exo_icon_view_set_spacing:
 * @icon_view : a #ExoIconView
 * @spacing   : the spacing
 *
 * Sets the ::spacing property which specifies the space
 * which is inserted between the cells (i.e. the icon and
 * the text) of an item.
 */
void  exo_icon_view_set_spacing (ExoIconView *icon_view, gint         spacing)
{
    g_return_if_fail (EXO_IS_ICON_VIEW (icon_view));

    if (G_LIKELY (icon_view->priv->spacing != spacing))
    {
        icon_view->priv->spacing = spacing;

        exo_icon_view_stop_editing (icon_view, TRUE);
        exo_icon_view_invalidate_sizes (icon_view);

        g_object_notify (G_OBJECT (icon_view), "spacing");
    }
}



/**
 * exo_icon_view_get_row_spacing:
 * @icon_view: a #ExoIconView
 *
 * Returns the value of the ::row-spacing property.
 *
 * Return value: the space between rows
 */
gint
exo_icon_view_get_row_spacing (const ExoIconView *icon_view)
{
    g_return_val_if_fail (EXO_IS_ICON_VIEW (icon_view), -1);
    return icon_view->priv->row_spacing;
}



/**
 * exo_icon_view_set_row_spacing:
 * @icon_view   : a #ExoIconView
 * @row_spacing : the row spacing
 *
 * Sets the ::row-spacing property which specifies the space
 * which is inserted between the rows of the icon view.
 */
void  exo_icon_view_set_row_spacing (ExoIconView *icon_view, gint         row_spacing)
{
    g_return_if_fail (EXO_IS_ICON_VIEW (icon_view));

    if (G_LIKELY (icon_view->priv->row_spacing != row_spacing))
    {
        icon_view->priv->row_spacing = row_spacing;

        exo_icon_view_stop_editing (icon_view, TRUE);
        exo_icon_view_invalidate_sizes (icon_view);

        g_object_notify (G_OBJECT (icon_view), "row-spacing");
    }
}



/**
 * exo_icon_view_get_column_spacing:
 * @icon_view: a #ExoIconView
 *
 * Returns the value of the ::column-spacing property.
 *
 * Return value: the space between columns
 **/
gint
exo_icon_view_get_column_spacing (const ExoIconView *icon_view)
{
    g_return_val_if_fail (EXO_IS_ICON_VIEW (icon_view), -1);
    return icon_view->priv->column_spacing;
}



/**
 * exo_icon_view_set_column_spacing:
 * @icon_view      : a #ExoIconView
 * @column_spacing : the column spacing
 *
 * Sets the ::column-spacing property which specifies the space
 * which is inserted between the columns of the icon view.
 **/
void  exo_icon_view_set_column_spacing (ExoIconView *icon_view, gint         column_spacing)
{
    g_return_if_fail (EXO_IS_ICON_VIEW (icon_view));

    if (G_LIKELY (icon_view->priv->column_spacing != column_spacing))
    {
        icon_view->priv->column_spacing = column_spacing;

        exo_icon_view_stop_editing (icon_view, TRUE);
        exo_icon_view_invalidate_sizes (icon_view);

        g_object_notify (G_OBJECT (icon_view), "column-spacing");
    }
}



/**
 * exo_icon_view_get_margin:
 * @icon_view : a #ExoIconView
 *
 * Returns the value of the ::margin property.
 *
 * Return value: the space at the borders
 **/
gint
exo_icon_view_get_margin (const ExoIconView *icon_view)
{
    g_return_val_if_fail (EXO_IS_ICON_VIEW (icon_view), -1);
    return icon_view->priv->margin;
}



/**
 * exo_icon_view_set_margin:
 * @icon_view : a #ExoIconView
 * @margin    : the margin
 *
 * Sets the ::margin property which specifies the space
 * which is inserted at the top, bottom, left and right
 * of the icon view.
 **/
void  exo_icon_view_set_margin (ExoIconView *icon_view, gint         margin)
{
    g_return_if_fail (EXO_IS_ICON_VIEW (icon_view));

    if (G_LIKELY (icon_view->priv->margin != margin))
    {
        icon_view->priv->margin = margin;

        exo_icon_view_stop_editing (icon_view, TRUE);
        exo_icon_view_invalidate_sizes (icon_view);

        g_object_notify (G_OBJECT (icon_view), "margin");
    }
}



/* Get/set whether drag_motion requested the drag data and
 * drag_data_received should thus not actually insert the data,
 * since the data doesn't result from a drop.
 */
static void  set_status_pending (GdkDragContext *context, GdkDragAction   suggested_action)
{
    g_object_set_data (G_OBJECT (context), I_("exo-icon-view-status-pending"), GINT_TO_POINTER (suggested_action));
}

static GdkDragAction
get_status_pending (GdkDragContext *context)
{
    return GPOINTER_TO_INT (g_object_get_data (G_OBJECT (context), I_("exo-icon-view-status-pending")));
}

static void  unset_reorderable (ExoIconView *icon_view)
{
    if (icon_view->priv->reorderable)
    {
        icon_view->priv->reorderable = FALSE;
        g_object_notify (G_OBJECT (icon_view), "reorderable");
    }
}

static void  clear_source_info (ExoIconView *icon_view)
{
    if (icon_view->priv->source_targets)
        gtk_target_list_unref (icon_view->priv->source_targets);
    icon_view->priv->source_targets = NULL;

    icon_view->priv->source_set = FALSE;
}

static void  clear_dest_info (ExoIconView *icon_view)
{
    if (icon_view->priv->dest_targets)
        gtk_target_list_unref (icon_view->priv->dest_targets);
    icon_view->priv->dest_targets = NULL;

    icon_view->priv->dest_set = FALSE;
}

static void  set_source_row (GdkDragContext *context, GtkTreeModel   *model, GtkTreePath    *source_row)
{
    if (source_row)
        g_object_set_data_full (G_OBJECT (context),
                                I_("exo-icon-view-source-row"),
                                gtk_tree_row_reference_new (model, source_row),
                                (GDestroyNotify) gtk_tree_row_reference_free);
    else
        g_object_set_data_full (G_OBJECT (context), I_("exo-icon-view-source-row"), NULL, NULL);
}

static GtkTreePath*
get_source_row (GdkDragContext *context)
{
    GtkTreeRowReference *ref;

    ref = g_object_get_data (G_OBJECT (context), I_("exo-icon-view-source-row"));

    if (ref)
        return gtk_tree_row_reference_get_path (ref);
    else
        return NULL;
}

typedef struct
{
    GtkTreeRowReference *dest_row;
    gboolean             empty_view_drop;
    gboolean             drop_append_mode;
} DestRow;

static void  dest_row_free (gpointer data)
{
    DestRow *dr = (DestRow *)data;

    gtk_tree_row_reference_free (dr->dest_row);
    _exo_slice_free (DestRow, dr);
}

static void  set_dest_row (GdkDragContext *context,
              GtkTreeModel   *model,
              GtkTreePath    *dest_row,
              gboolean        empty_view_drop,
              gboolean        drop_append_mode)
{
    DestRow *dr;

    if (!dest_row)
    {
        g_object_set_data_full (G_OBJECT (context),
                                I_("exo-icon-view-dest-row"),
                                NULL, NULL);
        return;
    }

    dr = _exo_slice_new0 (DestRow);

    dr->dest_row = gtk_tree_row_reference_new (model, dest_row);
    dr->empty_view_drop = empty_view_drop;
    dr->drop_append_mode = drop_append_mode;
    g_object_set_data_full (G_OBJECT (context), I_("exo-icon-view-dest-row"), dr, (GDestroyNotify) dest_row_free);
}



static GtkTreePath*
get_dest_row (GdkDragContext *context)
{
    DestRow *dr;

    dr = g_object_get_data (G_OBJECT (context), I_("exo-icon-view-dest-row"));

    if (dr)
    {
        GtkTreePath *path = NULL;

        if (dr->dest_row)
            path = gtk_tree_row_reference_get_path (dr->dest_row);
        else if (dr->empty_view_drop)
            path = gtk_tree_path_new_from_indices (0, -1);
        else
            path = NULL;

        if (path && dr->drop_append_mode)
            gtk_tree_path_next (path);

        return path;
    }
    else
        return NULL;
}



static gboolean  check_model_dnd (GtkTreeModel *model, GType         required_iface, const gchar  *signal)
{
    if (model == NULL || !G_TYPE_CHECK_INSTANCE_TYPE ((model), required_iface))
    {
        g_warning ("You must override the default '%s' handler "
                   "on ExoIconView when using models that don't support "
                   "the %s interface and enabling drag-and-drop. The simplest way to do this "
                   "is to connect to '%s' and call "
                   "g_signal_stop_emission_by_name() in your signal handler to prevent "
                   "the default handler from running. Look at the source code "
                   "for the default handler in gtkiconview.c to get an idea what "
                   "your handler should do. (gtkiconview.c is in the GTK+ source "
                   "code.) If you're using GTK+ from a language other than C, "
                   "there may be a more natural way to override default handlers, e.g. via derivation.",
                   signal, g_type_name (required_iface), signal);
        return FALSE;
    }
    else
        return TRUE;
}



static void  remove_scroll_timeout (ExoIconView *icon_view)
{
    if (icon_view->priv->scroll_timeout_id != 0)
    {
        g_source_remove (icon_view->priv->scroll_timeout_id);

        icon_view->priv->scroll_timeout_id = 0;
    }
}



static void  exo_icon_view_autoscroll (ExoIconView *icon_view)
{
    gint px, py, x, y, width, height;
    gint hoffset, voffset;
    gfloat value;

    gdk_window_get_pointer (gtk_widget_get_window (GTK_WIDGET (icon_view)), &px, &py, NULL);
#if GTK_CHECK_VERSION (3, 0, 0)
    gdk_window_get_geometry (gtk_widget_get_window (GTK_WIDGET (icon_view)), &x, &y, &width, &height);
#else
    gdk_window_get_geometry (gtk_widget_get_window (GTK_WIDGET (icon_view)), &x, &y, &width, &height, NULL);
#endif

    /* see if we are near the edge. */
    voffset = py - (y + 2 * SCROLL_EDGE_SIZE);
    if (voffset > 0)
        voffset = MAX (py - (y + height - 2 * SCROLL_EDGE_SIZE), 0);

    hoffset = px - (x + 2 * SCROLL_EDGE_SIZE);
    if (hoffset > 0)
        hoffset = MAX (px - (x + width - 2 * SCROLL_EDGE_SIZE), 0);

    if (voffset != 0)
    {
        value = CLAMP (gtk_adjustment_get_value (icon_view->priv->vadjustment) + voffset,
                       gtk_adjustment_get_lower (icon_view->priv->vadjustment),
                       gtk_adjustment_get_upper (icon_view->priv->vadjustment) - gtk_adjustment_get_page_size (icon_view->priv->vadjustment));
        gtk_adjustment_set_value (icon_view->priv->vadjustment, value);
    }
    if (hoffset != 0)
    {
        value = CLAMP (gtk_adjustment_get_value (icon_view->priv->hadjustment) + hoffset,
                       gtk_adjustment_get_lower (icon_view->priv->hadjustment),
                       gtk_adjustment_get_upper (icon_view->priv->hadjustment) - gtk_adjustment_get_page_size (icon_view->priv->hadjustment));
        gtk_adjustment_set_value (icon_view->priv->hadjustment, value);
    }
}


static gboolean  drag_scroll_timeout (gpointer data)
{
    ExoIconView *icon_view = EXO_ICON_VIEW (data);

    GDK_THREADS_ENTER ();

    exo_icon_view_autoscroll (icon_view);

    GDK_THREADS_LEAVE ();

    return TRUE;
}


static gboolean  set_destination (ExoIconView    *icon_view,
                 GdkDragContext *context,
                 gint            x,
                 gint            y,
                 GdkDragAction  *suggested_action,
                 GdkAtom        *target)
{
    GtkWidget *widget;
    GtkTreePath *path = NULL;
    ExoIconViewDropPosition pos;
    ExoIconViewDropPosition old_pos;
    GtkTreePath *old_dest_path = NULL;
    gboolean can_drop = FALSE;

    widget = GTK_WIDGET (icon_view);

    *suggested_action = 0;
    *target = GDK_NONE;

    if (!icon_view->priv->dest_set)
    {
        /* someone unset us as a drag dest, note that if
       * we return FALSE drag_leave isn't called
       */

        exo_icon_view_set_drag_dest_item (icon_view, NULL, EXO_ICON_VIEW_DROP_LEFT);

        remove_scroll_timeout (EXO_ICON_VIEW (widget));

        return FALSE; /* no longer a drop site */
    }

    *target = gtk_drag_dest_find_target (widget, context, icon_view->priv->dest_targets);
    if (*target == GDK_NONE)
        return FALSE;

    if (!exo_icon_view_get_dest_item_at_pos (icon_view, x, y, &path, &pos))
    {
        gint n_children;
        GtkTreeModel *model;

        /* the row got dropped on empty space, let's setup a special case
       */

        if (path)
            gtk_tree_path_free (path);

        model = exo_icon_view_get_model (icon_view);

        n_children = gtk_tree_model_iter_n_children (model, NULL);
        if (n_children)
        {
            pos = EXO_ICON_VIEW_DROP_BELOW;
            path = gtk_tree_path_new_from_indices (n_children - 1, -1);
        } else {
            pos = EXO_ICON_VIEW_DROP_ABOVE;
            path = gtk_tree_path_new_from_indices (0, -1);
        }

        can_drop = TRUE;

        goto out;
    }

    g_assert (path);

    exo_icon_view_get_drag_dest_item (icon_view, &old_dest_path, &old_pos);

    if (old_dest_path)
        gtk_tree_path_free (old_dest_path);

    if (TRUE /* FIXME if the location droppable predicate */)
    {
        can_drop = TRUE;
    }

out:
    if (can_drop)
    {
        GtkWidget *source_widget;

        *suggested_action = gdk_drag_context_get_suggested_action (context);
        source_widget = gtk_drag_get_source_widget (context);

        if (source_widget == widget)
        {
            /* Default to MOVE, unless the user has
           * pressed ctrl or shift to affect available actions
           */
            if ((gdk_drag_context_get_actions (context) & GDK_ACTION_MOVE) != 0)
                *suggested_action = GDK_ACTION_MOVE;
        }

        exo_icon_view_set_drag_dest_item (EXO_ICON_VIEW (widget), path, pos);
    } else {
        /* can't drop here */
        exo_icon_view_set_drag_dest_item (EXO_ICON_VIEW (widget), NULL, EXO_ICON_VIEW_DROP_LEFT);
    }

    if (path)
        gtk_tree_path_free (path);

    return TRUE;
}

static GtkTreePath*
get_logical_destination (ExoIconView *icon_view, gboolean    *drop_append_mode)
{
    /* adjust path to point to the row the drop goes in front of */
    GtkTreePath *path = NULL;
    ExoIconViewDropPosition pos;

    *drop_append_mode = FALSE;

    exo_icon_view_get_drag_dest_item (icon_view, &path, &pos);

    if (path == NULL)
        return NULL;

    if (pos == EXO_ICON_VIEW_DROP_RIGHT ||
            pos == EXO_ICON_VIEW_DROP_BELOW)
    {
        GtkTreeIter iter;
        GtkTreeModel *model = icon_view->priv->model;

        if (!gtk_tree_model_get_iter (model, &iter, path) ||
                !gtk_tree_model_iter_next (model, &iter))
            *drop_append_mode = TRUE;
        else
        {
            *drop_append_mode = FALSE;
            gtk_tree_path_next (path);
        }
    }

    return path;
}
                             // howdy
static gboolean  exo_icon_view_maybe_begin_drag (ExoIconView *icon_view, GdkEventMotion *event)
{
    GdkDragContext *context;
    GtkTreePath *path = NULL;
    gint button;
    GtkTreeModel *model;
    gboolean retval = FALSE;

    if (!icon_view->priv->source_set)
        goto out;

    if (icon_view->priv->pressed_button < 0)
        goto out;

    if (!gtk_drag_check_threshold (GTK_WIDGET (icon_view), icon_view->priv->press_start_x, icon_view->priv->press_start_y, event->x, event->y))
        goto out;

    model = exo_icon_view_get_model (icon_view);

    if (model == NULL)
        goto out;

    button = icon_view->priv->pressed_button;
    icon_view->priv->pressed_button = -1;

    path = exo_icon_view_get_path_at_pos (icon_view, icon_view->priv->press_start_x, icon_view->priv->press_start_y);

    if (path == NULL)
        goto out;

    if (!GTK_IS_TREE_DRAG_SOURCE (model) ||  !gtk_tree_drag_source_row_draggable (GTK_TREE_DRAG_SOURCE (model), path))
        goto out;

    /* FIXME Check whether we're a start button, if not return FALSE and free path   */

    /* Now we can begin the drag */

    retval = TRUE;

    context = gtk_drag_begin (GTK_WIDGET (icon_view), icon_view->priv->source_targets, icon_view->priv->source_actions, button, (GdkEvent*)event);

    set_source_row (context, model, path);

out:
    if (path)
        gtk_tree_path_free (path);

    return retval;
}

/* Source side drag signals */
static void  exo_icon_view_drag_begin (GtkWidget      *widget, GdkDragContext *context)
{
    ExoIconView *icon_view;
    ExoIconViewItem *item;
#if GTK_CHECK_VERSION (3, 0, 0)
    cairo_surface_t *icon;
#else
    GdkPixmap *icon;
#endif
    gint x, y;
    GtkTreePath *path;

    icon_view = EXO_ICON_VIEW (widget);

    /* if the user uses a custom DnD impl, we don't set the icon here */
    if (!icon_view->priv->dest_set && !icon_view->priv->source_set)
        return;

    item = exo_icon_view_get_item_at_coords (icon_view, icon_view->priv->press_start_x, icon_view->priv->press_start_y, TRUE, NULL);

    _exo_return_if_fail (item != NULL);

    x = icon_view->priv->press_start_x - item->area.x + 1;
    y = icon_view->priv->press_start_y - item->area.y + 1;

    path = gtk_tree_path_new_from_indices (g_list_index (icon_view->priv->items, item), -1);
    icon = exo_icon_view_create_drag_icon (icon_view, path);
    gtk_tree_path_free (path);

#if GTK_CHECK_VERSION (3, 0, 0)
    gtk_drag_set_icon_surface (context, icon);

    cairo_surface_destroy (icon);
#else
    gtk_drag_set_icon_pixmap (context, gdk_drawable_get_colormap (icon), icon, NULL, x, y);

    g_object_unref (icon);
#endif
}

static void  exo_icon_view_drag_end (GtkWidget *widget, GdkDragContext *context)
{
    /* do nothing */
}

static void  exo_icon_view_drag_data_get (GtkWidget *widget,
                             GdkDragContext   *context,
                             GtkSelectionData *selection_data,
                             guint             info,
                             guint             time)
{
    ExoIconView *icon_view;
    GtkTreeModel *model;
    GtkTreePath *source_row;

    icon_view = EXO_ICON_VIEW (widget);
    model = exo_icon_view_get_model (icon_view);

    if (model == NULL)
        return;

    if (!icon_view->priv->dest_set)
        return;

    source_row = get_source_row (context);

    if (source_row == NULL)
        return;

    /* We can implement the GTK_TREE_MODEL_ROW target generically for
   * any model; for DragSource models there are some other targets
   * we also support.
   */

    if (GTK_IS_TREE_DRAG_SOURCE (model) &&
            gtk_tree_drag_source_drag_data_get (GTK_TREE_DRAG_SOURCE (model), source_row, selection_data))
        goto done;

    /* If drag_data_get does nothing, try providing row data. */
    if (gtk_selection_data_get_target (selection_data) == gdk_atom_intern ("GTK_TREE_MODEL_ROW", FALSE))
        gtk_tree_set_row_drag_data (selection_data, model, source_row);

done:
    gtk_tree_path_free (source_row);
}

static void  exo_icon_view_drag_data_delete (GtkWidget *widget, GdkDragContext *context)
{
    GtkTreeModel *model;
    ExoIconView *icon_view;
    GtkTreePath *source_row;

    icon_view = EXO_ICON_VIEW (widget);
    model = exo_icon_view_get_model (icon_view);

    if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_SOURCE, "drag_data_delete"))
        return;

    if (!icon_view->priv->dest_set)
        return;

    source_row = get_source_row (context);

    if (source_row == NULL)
        return;

    if ( GTK_IS_TREE_DRAG_SOURCE( model ) )
        gtk_tree_drag_source_drag_data_delete( GTK_TREE_DRAG_SOURCE (model), source_row );

    gtk_tree_path_free (source_row);

    set_source_row (context, NULL, NULL);
}

/* Target side drag signals */
static void  exo_icon_view_drag_leave (GtkWidget      *widget, GdkDragContext *context, guint           time)
{
    ExoIconView *icon_view;

    icon_view = EXO_ICON_VIEW (widget);

    /* unset any highlight row */
    exo_icon_view_set_drag_dest_item (icon_view, NULL, EXO_ICON_VIEW_DROP_LEFT);

    remove_scroll_timeout (icon_view);
}

static gboolean  exo_icon_view_drag_motion (GtkWidget      *widget,
                           GdkDragContext *context,
                           gint            x,
                           gint            y,
                           guint           time)
{
    ExoIconViewDropPosition pos;
    GdkDragAction           suggested_action = 0;
    GtkTreePath            *path = NULL;
    ExoIconView            *icon_view = EXO_ICON_VIEW (widget);
    gboolean                empty;
    GdkAtom                 target;

    if (!set_destination (icon_view, context, x, y, &suggested_action, &target))
        return FALSE;

    exo_icon_view_get_drag_dest_item (icon_view, &path, &pos);

    /* we only know this *after* set_desination_row */
    empty = icon_view->priv->empty_view_drop;

    if (path == NULL && !empty)
    {
        /* Can't drop here. */
        gdk_drag_status (context, 0, time);
    } else {
        if (icon_view->priv->scroll_timeout_id == 0)
            icon_view->priv->scroll_timeout_id = g_timeout_add (50, drag_scroll_timeout, icon_view);

        if (target == gdk_atom_intern ("GTK_TREE_MODEL_ROW", FALSE))
        {
            /* Request data so we can use the source row when
           * determining whether to accept the drop
           */
            set_status_pending (context, suggested_action);
            gtk_drag_get_data (widget, context, target, time);
        } else {
            set_status_pending (context, 0);
            gdk_drag_status (context, suggested_action, time);
        }
    }

    if (path != NULL)
        gtk_tree_path_free (path);

    return TRUE;
}

static gboolean  exo_icon_view_drag_drop (GtkWidget      *widget,
                         GdkDragContext *context,
                         gint            x,
                         gint            y,
                         guint           time)
{
    ExoIconView *icon_view;
    GtkTreePath *path;
    GdkDragAction suggested_action = 0;
    GdkAtom target = GDK_NONE;
    GtkTreeModel *model;
    gboolean drop_append_mode;

    icon_view = EXO_ICON_VIEW (widget);
    model = exo_icon_view_get_model (icon_view);

    remove_scroll_timeout (EXO_ICON_VIEW (widget));

    if (!icon_view->priv->dest_set)
        return FALSE;

    if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag_drop"))
        return FALSE;

    if (!set_destination (icon_view, context, x, y, &suggested_action, &target))
        return FALSE;

    path = get_logical_destination (icon_view, &drop_append_mode);

    if (target != GDK_NONE && path != NULL)
    {
        /* in case a motion had requested drag data, change things so we treat drag data receives as a drop.
       */
        set_status_pending (context, 0);
        set_dest_row (context, model, path, icon_view->priv->empty_view_drop, drop_append_mode);
    }

    if (path)
        gtk_tree_path_free (path);

    /* Unset this thing */
    exo_icon_view_set_drag_dest_item (icon_view, NULL, EXO_ICON_VIEW_DROP_LEFT);

    if (target != GDK_NONE)
    {
        gtk_drag_get_data (widget, context, target, time);
        return TRUE;
    }
    else
        return FALSE;
}

static void  exo_icon_view_drag_data_received (GtkWidget        *widget,
                                  GdkDragContext   *context,
                                  gint              x,
                                  gint              y,
                                  GtkSelectionData *selection_data,
                                  guint             info,
                                  guint             time)
{
    GtkTreePath *path;
    gboolean accepted = FALSE;
    GtkTreeModel *model;
    ExoIconView *icon_view;
    GtkTreePath *dest_row;
    GdkDragAction suggested_action;
    gboolean drop_append_mode;

    icon_view = EXO_ICON_VIEW (widget);
    model = exo_icon_view_get_model (icon_view);

    if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag_data_received"))
        return;

    if (!icon_view->priv->dest_set)
        return;

    suggested_action = get_status_pending (context);

    if (suggested_action)
    {
        /* We are getting this data due to a request in drag_motion,
       * rather than due to a request in drag_drop, so we are just
       * supposed to call drag_status, not actually paste in the data.
       */
        path = get_logical_destination (icon_view, &drop_append_mode);

        if (path == NULL)
            suggested_action = 0;

        if (suggested_action)
        {
            if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model), path, selection_data))
                suggested_action = 0;
        }

        gdk_drag_status (context, suggested_action, time);

        if (path)
            gtk_tree_path_free (path);

        /* If you can't drop, remove user drop indicator until the next motion */
        if (suggested_action == 0)
            exo_icon_view_set_drag_dest_item (icon_view, NULL, EXO_ICON_VIEW_DROP_LEFT);
        return;
    }


    dest_row = get_dest_row (context);

    if (dest_row == NULL)
        return;

    if (gtk_selection_data_get_length (selection_data) >= 0)
    {
        if (gtk_tree_drag_dest_drag_data_received (GTK_TREE_DRAG_DEST (model), dest_row, selection_data))
            accepted = TRUE;
    }

    gtk_drag_finish (context, accepted, (gdk_drag_context_get_selected_action (context) == GDK_ACTION_MOVE), time);

    gtk_tree_path_free (dest_row);

    /* drop dest_row */
    set_dest_row (context, NULL, NULL, FALSE, FALSE);
}



/**
 * exo_icon_view_enable_model_drag_source:
 * @icon_view         : a #GtkIconTreeView
 * @start_button_mask : Mask of allowed buttons to start drag
 * @targets           : the table of targets that the drag will support
 * @n_targets         : the number of items in @targets
 * @actions           : the bitmask of possible actions for a drag from this widget
 *
 * Turns @icon_view into a drag source for automatic DND.
 **/
void  exo_icon_view_enable_model_drag_source (ExoIconView              *icon_view,
                                        GdkModifierType           start_button_mask,
                                        const GtkTargetEntry     *targets,
                                        gint                      n_targets,
                                        GdkDragAction             actions)
{
    g_return_if_fail (EXO_IS_ICON_VIEW (icon_view));

    gtk_drag_source_set (GTK_WIDGET (icon_view), 0, NULL, 0, actions);

    clear_source_info (icon_view);
    icon_view->priv->start_button_mask = start_button_mask;
    icon_view->priv->source_targets = gtk_target_list_new (targets, n_targets);
    icon_view->priv->source_actions = actions;

    icon_view->priv->source_set = TRUE;

    unset_reorderable (icon_view);
}



/**
 * exo_icon_view_enable_model_drag_dest:
 * @icon_view : a #ExoIconView
 * @targets   : the table of targets that the drag will support
 * @n_targets : the number of items in @targets
 * @actions   : the bitmask of possible actions for a drag from this widget
 *
 * Turns @icon_view into a drop destination for automatic DND.
 **/
void  exo_icon_view_enable_model_drag_dest (ExoIconView          *icon_view,
                                      const GtkTargetEntry *targets,
                                      gint                  n_targets,
                                      GdkDragAction         actions)
{
    g_return_if_fail (EXO_IS_ICON_VIEW (icon_view));

    gtk_drag_dest_set (GTK_WIDGET (icon_view), 0, NULL, 0, actions);

    clear_dest_info (icon_view);

    icon_view->priv->dest_targets = gtk_target_list_new (targets, n_targets);
    icon_view->priv->dest_actions = actions;

    icon_view->priv->dest_set = TRUE;

    unset_reorderable (icon_view);
}



/**
 * exo_icon_view_unset_model_drag_source:
 * @icon_view : a #ExoIconView
 *
 * Undoes the effect of #exo_icon_view_enable_model_drag_source().
 **/
void  exo_icon_view_unset_model_drag_source (ExoIconView *icon_view)
{
    g_return_if_fail (EXO_IS_ICON_VIEW (icon_view));

    if (icon_view->priv->source_set)
    {
        gtk_drag_source_unset (GTK_WIDGET (icon_view));
        clear_source_info (icon_view);
    }

    unset_reorderable (icon_view);
}



/**
 * exo_icon_view_unset_model_drag_dest:
 * @icon_view : a #ExoIconView
 *
 * Undoes the effect of #exo_icon_view_enable_model_drag_dest().
 **/
void  exo_icon_view_unset_model_drag_dest (ExoIconView *icon_view)
{
    g_return_if_fail (EXO_IS_ICON_VIEW (icon_view));

    if (icon_view->priv->dest_set)
    {
        gtk_drag_dest_unset (GTK_WIDGET (icon_view));
        clear_dest_info (icon_view);
    }

    unset_reorderable (icon_view);
}



/**
 * exo_icon_view_set_drag_dest_item:
 * @icon_view : a #ExoIconView
 * @path      : The path of the item to highlight, or %NULL.
 * @pos       : Specifies whether to drop, relative to the item
 *
 * Sets the item that is highlighted for feedback.
 */
void  exo_icon_view_set_drag_dest_item (ExoIconView *icon_view, GtkTreePath *path, ExoIconViewDropPosition pos)
{
    ExoIconViewItem *item;
    GtkTreePath     *previous_path;

    g_return_if_fail (EXO_IS_ICON_VIEW (icon_view));

    /* Note; this function is exported to allow a custom DND
   * implementation, so it can't touch TreeViewDragInfo
   */

    if (icon_view->priv->dest_item != NULL)
    {
        /* determine and reset the previous path */
        previous_path = gtk_tree_row_reference_get_path (icon_view->priv->dest_item);
        gtk_tree_row_reference_free (icon_view->priv->dest_item);
        icon_view->priv->dest_item = NULL;

        /* check if the path is still valid */
        if (G_LIKELY (previous_path != NULL))
        {
            /* schedule a redraw for the previous path */
            item = g_list_nth_data (icon_view->priv->items, gtk_tree_path_get_indices (previous_path)[0]);
            if (G_LIKELY (item != NULL))
                exo_icon_view_queue_draw_item (icon_view, item);
            gtk_tree_path_free (previous_path);
        }
    }

    /* special case a drop on an empty model */
    icon_view->priv->empty_view_drop = FALSE;
    if (pos == GTK_TREE_VIEW_DROP_BEFORE && path
            && gtk_tree_path_get_depth (path) == 1
            && gtk_tree_path_get_indices (path)[0] == 0)
    {
        gint n_children;

        n_children = gtk_tree_model_iter_n_children (icon_view->priv->model, NULL);

        if (n_children == 0)
            icon_view->priv->empty_view_drop = TRUE;
    }

    icon_view->priv->dest_pos = pos;

    if (G_LIKELY (path != NULL))
    {
        /* take a row reference for the new item path */
        icon_view->priv->dest_item = gtk_tree_row_reference_new_proxy (G_OBJECT (icon_view), icon_view->priv->model, path);

        /* schedule a redraw on the new path */
        item = g_list_nth_data (icon_view->priv->items, gtk_tree_path_get_indices (path)[0]);
        if (G_LIKELY (item != NULL))
            exo_icon_view_queue_draw_item (icon_view, item);
    }
}



/**
 * exo_icon_view_get_drag_dest_item:
 * @icon_view : a #ExoIconView
 * @path      : Return location for the path of the highlighted item, or %NULL.
 * @pos       : Return location for the drop position, or %NULL
 *
 * Gets information about the item that is highlighted for feedback.
 **/
void  exo_icon_view_get_drag_dest_item (ExoIconView *icon_view, GtkTreePath **path, ExoIconViewDropPosition  *pos)
{
    g_return_if_fail (EXO_IS_ICON_VIEW (icon_view));

    if (path)
    {
        if (icon_view->priv->dest_item)
            *path = gtk_tree_row_reference_get_path (icon_view->priv->dest_item);
        else
            *path = NULL;
    }

    if (pos)
        *pos = icon_view->priv->dest_pos;
}



/**
 * exo_icon_view_get_dest_item_at_pos:
 * @icon_view : a #ExoIconView
 * @drag_x    : the position to determine the destination item for
 * @drag_y    : the position to determine the destination item for
 * @path      : Return location for the path of the highlighted item, or %NULL.
 * @pos       : Return location for the drop position, or %NULL
 *
 * Determines the destination item for a given position.
 *
 * Both @drag_x and @drag_y are given in icon window coordinates. Use
 * #exo_icon_view_widget_to_icon_coords() if you need to translate
 * widget coordinates first.
 *
 * Return value: whether there is an item at the given position.
 **/
gboolean  exo_icon_view_get_dest_item_at_pos (ExoIconView  *icon_view,
                                    gint                      drag_x,
                                    gint                      drag_y,
                                    GtkTreePath  **path,
                                    ExoIconViewDropPosition  *pos)
{
    ExoIconViewItem *item;

    /* Note; this function is exported to allow a custom DND
   * implementation, so it can't touch TreeViewDragInfo
   */

    g_return_val_if_fail (EXO_IS_ICON_VIEW (icon_view), FALSE);
    g_return_val_if_fail (drag_x >= 0, FALSE);
    g_return_val_if_fail (drag_y >= 0, FALSE);
    g_return_val_if_fail (icon_view->priv->bin_window != NULL, FALSE);

    if (G_LIKELY (path != NULL))
        *path = NULL;

    item = exo_icon_view_get_item_at_coords (icon_view, drag_x, drag_y, FALSE, NULL);

    if (G_UNLIKELY (item == NULL))
        return FALSE;

    if (G_LIKELY (path != NULL))
        *path = gtk_tree_path_new_from_indices (g_list_index (icon_view->priv->items, item), -1);

    if (G_LIKELY (pos != NULL))
    {
        if (drag_x < item->area.x + item->area.width / 4)
            *pos = EXO_ICON_VIEW_DROP_LEFT;
        else if (drag_x > item->area.x + item->area.width * 3 / 4)
            *pos = EXO_ICON_VIEW_DROP_RIGHT;
        else if (drag_y < item->area.y + item->area.height / 4)
            *pos = EXO_ICON_VIEW_DROP_ABOVE;
        else if (drag_y > item->area.y + item->area.height * 3 / 4)
            *pos = EXO_ICON_VIEW_DROP_BELOW;
        else
            *pos = EXO_ICON_VIEW_DROP_INTO;
    }

    return TRUE;
}



/**
 * exo_icon_view_create_drag_icon:
 * @icon_view : a #ExoIconView
 * @path      : a #GtkTreePath in @icon_view
 *
 * Creates a #GdkPixmap or #cairo_surface_t representation of the item at @path.
 * This image is used for a drag icon.
 *
 * Return value: a newly-allocated pixmap (gtk2) or cairo surface (gtk3) of the drag icon.
 **/
#if GTK_CHECK_VERSION (3, 0, 0)
cairo_surface_t*
#else
GdkPixmap*
#endif
exo_icon_view_create_drag_icon (ExoIconView *icon_view, GtkTreePath *path)
{
    GdkRectangle      area;
    GtkWidget  *widget = GTK_WIDGET (icon_view);
#if GTK_CHECK_VERSION (3, 0, 0)
    cairo_surface_t  *drawable;
#else
    GdkDrawable  *drawable;
#endif
    GList  *lp;
    gint              index;
    cairo_t  *cr;

    g_return_val_if_fail (EXO_IS_ICON_VIEW (icon_view), NULL);
    g_return_val_if_fail (gtk_tree_path_get_depth (path) > 0, NULL);

    /* verify that the widget is realized */
    if (G_UNLIKELY (!gtk_widget_get_realized (GTK_WIDGET (icon_view))))
        return NULL;

    index = gtk_tree_path_get_indices (path)[0];

    for (lp = icon_view->priv->items; lp != NULL; lp = lp->next)
    {
        ExoIconViewItem *item = lp->data;
        if (G_UNLIKELY (index == g_list_index (icon_view->priv->items, item)))
        {
#if GTK_CHECK_VERSION (3, 0, 0)
            drawable = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, item->area.width + 2, item->area.height + 2);

            cr = cairo_create (drawable);
#else
            drawable = gdk_pixmap_new (icon_view->priv->bin_window, item->area.width + 2, item->area.height + 2, -1);

            cr = gdk_cairo_create (drawable);
#endif
            cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
            gdk_cairo_set_source_color (cr, &gtk_widget_get_style(widget)->base[gtk_widget_get_state (widget)]);
            cairo_rectangle (cr, 0, 0, item->area.width + 2, item->area.height + 2);
            cairo_fill (cr);

            area.x = 0;
            area.y = 0;
            area.width = item->area.width;
            area.height = item->area.height;

#if GTK_CHECK_VERSION (3, 0, 0)
            exo_icon_view_paint_item (icon_view, item, &area, cr, 1, 1, FALSE);
#else
            exo_icon_view_paint_item (icon_view, item, &area, drawable, 1, 1, FALSE);
#endif

            gdk_cairo_set_source_color (cr, &gtk_widget_get_style(widget)->black);
            cairo_rectangle (cr, 1, 1, item->area.width + 1, item->area.height + 1);
            cairo_stroke (cr);

            cairo_destroy (cr);

            return drawable;
        }
    }

    return NULL;
}



/**
 * exo_icon_view_get_reorderable:
 * @icon_view : a #ExoIconView
 *
 * Retrieves whether the user can reorder the list via drag-and-drop.
 * See exo_icon_view_set_reorderable().
 *
 * Return value: %TRUE if the list can be reordered.
 **/
gboolean  exo_icon_view_get_reorderable (ExoIconView *icon_view)
{
    g_return_val_if_fail (EXO_IS_ICON_VIEW (icon_view), FALSE);

    return icon_view->priv->reorderable;
}



/**
 * exo_icon_view_set_reorderable:
 * @icon_view   : A #ExoIconView.
 * @reorderable : %TRUE, if the list of items can be reordered.
 *
 * This function is a convenience function to allow you to reorder models that
 * support the #GtkTreeDragSourceIface and the #GtkTreeDragDestIface.  Both
 * #GtkTreeStore and #GtkListStore support these.  If @reorderable is %TRUE, then
 * the user can reorder the model by dragging and dropping rows.  The
 * developer can listen to these changes by connecting to the model's
 * ::row-inserted and ::row-deleted signals.
 *
 * This function does not give you any degree of control over the order -- any
 * reordering is allowed.  If more control is needed, you should probably
 * handle drag and drop manually.
 **/
void  exo_icon_view_set_reorderable (ExoIconView *icon_view, gboolean     reorderable)
{
    static const GtkTargetEntry item_targets[] =
    {
        { "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_WIDGET, 0, },
    };

    g_return_if_fail (EXO_IS_ICON_VIEW (icon_view));

    reorderable = (reorderable != FALSE);

    if (G_UNLIKELY (icon_view->priv->reorderable == reorderable))
        return;

    if (G_LIKELY (reorderable))
    {
        exo_icon_view_enable_model_drag_source (icon_view, GDK_BUTTON1_MASK, item_targets, G_N_ELEMENTS (item_targets), GDK_ACTION_MOVE);
        exo_icon_view_enable_model_drag_dest (icon_view, item_targets, G_N_ELEMENTS (item_targets), GDK_ACTION_MOVE);
    } else {
        exo_icon_view_unset_model_drag_source (icon_view);
        exo_icon_view_unset_model_drag_dest (icon_view);
    }

    icon_view->priv->reorderable = reorderable;

    g_object_notify (G_OBJECT (icon_view), "reorderable");
}



/*----------------------*
 * Single-click support *
 *----------------------*/

/**
 * exo_icon_view_get_single_click:
 * @icon_view : a #ExoIconView.
 *
 * Returns %TRUE if @icon_view is currently in single click mode,
 * else %FALSE will be returned.
 *
 * Return value: whether @icon_view is currently in single click mode.
 **/
gboolean  exo_icon_view_get_single_click (const ExoIconView *icon_view)
{
    g_return_val_if_fail (EXO_IS_ICON_VIEW (icon_view), FALSE);
    return icon_view->priv->single_click;
}



/**
 * exo_icon_view_set_single_click:
 * @icon_view    : a #ExoIconView.
 * @single_click : %TRUE for single click, %FALSE for double click mode.
 *
 * If @single_click is %TRUE, @icon_view will be in single click mode
 * afterwards, else @icon_view will be in double click mode.
 **/
void  exo_icon_view_set_single_click (ExoIconView *icon_view, gboolean     single_click)
{
    g_return_if_fail (EXO_IS_ICON_VIEW (icon_view));

    /* normalize the value */
    single_click = !!single_click;

    /* check if we have a new setting here */
    if (icon_view->priv->single_click != single_click)
    {
        icon_view->priv->single_click = single_click;
        g_object_notify (G_OBJECT (icon_view), "single-click");
    }
}



/**
 * exo_icon_view_get_single_click_timeout:
 * @icon_view : a #ExoIconView.
 *
 * Returns the amount of time in milliseconds after which the
 * item under the mouse cursor will be selected automatically
 * in single click mode. A value of %0 means that the behavior
 * is disabled and the user must alter the selection manually.
 *
 * Return value: the single click autoselect timeout or %0 if
 *               the behavior is disabled.
 **/
guint
exo_icon_view_get_single_click_timeout (const ExoIconView *icon_view)
{
    g_return_val_if_fail (EXO_IS_ICON_VIEW (icon_view), 0u);
    return icon_view->priv->single_click_timeout;
}



/**
 * exo_icon_view_set_single_click_timeout:
 * @icon_view            : a #ExoIconView.
 * @single_click_timeout : the new timeout or %0 to disable.
 *
 * If @single_click_timeout is a value greater than zero, it specifies
 * the amount of time in milliseconds after which the item under the
 * mouse cursor will be selected automatically in single click mode.
 * A value of %0 for @single_click_timeout disables the autoselection
 * for @icon_view.
 *
 * This setting does not have any effect unless the @icon_view is in
 * single-click mode, see exo_icon_view_set_single_click().
 **/
void  exo_icon_view_set_single_click_timeout (ExoIconView *icon_view, guint        single_click_timeout)
{
    g_return_if_fail (EXO_IS_ICON_VIEW (icon_view));

    /* check if we have a new setting */
    if (icon_view->priv->single_click_timeout != single_click_timeout)
    {
        /* apply the new setting */
        icon_view->priv->single_click_timeout = single_click_timeout;

        /* be sure to cancel any pending single click timeout */
        if (G_UNLIKELY (icon_view->priv->single_click_timeout_id != 0))
            g_source_remove (icon_view->priv->single_click_timeout_id);

        /* notify listeners */
        g_object_notify (G_OBJECT (icon_view), "single-click-timeout");
    }
}



static gboolean  exo_icon_view_single_click_timeout (gpointer user_data)
{
    ExoIconViewItem *item;
    gboolean         dirty = FALSE;
    ExoIconView  *icon_view = EXO_ICON_VIEW (user_data);

    GDK_THREADS_ENTER ();

    /* verify that we are in single-click mode, have focus and a prelit item */
    if (gtk_widget_has_focus (GTK_WIDGET (icon_view)) && icon_view->priv->single_click && icon_view->priv->prelit_item != NULL)
    {
        /* work on the prelit item */
        item = icon_view->priv->prelit_item;

        /* be sure the item is fully visible */
        exo_icon_view_scroll_to_item (icon_view, item);

        /* change the selection appropriately */
        if (G_UNLIKELY (icon_view->priv->selection_mode == GTK_SELECTION_NONE))
        {
            exo_icon_view_set_cursor_item (icon_view, item, -1);
        }
        else if ((icon_view->priv->single_click_timeout_state & GDK_SHIFT_MASK) != 0
                 && icon_view->priv->selection_mode == GTK_SELECTION_MULTIPLE)
        {
            if (!(icon_view->priv->single_click_timeout_state & GDK_CONTROL_MASK))
                /* unselect all previously selected items */
                exo_icon_view_unselect_all_internal (icon_view);

            /* select all items between the anchor and the prelit item */
            exo_icon_view_set_cursor_item (icon_view, item, -1);
            if (icon_view->priv->anchor_item == NULL)
                icon_view->priv->anchor_item = item;
            else
                exo_icon_view_select_all_between (icon_view, icon_view->priv->anchor_item, item);

            /* selection was changed */
            dirty = TRUE;
        } else {
            if ((icon_view->priv->selection_mode == GTK_SELECTION_MULTIPLE ||
                 ((icon_view->priv->selection_mode == GTK_SELECTION_SINGLE) && item->selected)) &&
                    (icon_view->priv->single_click_timeout_state & GDK_CONTROL_MASK) != 0)
            {
                item->selected = !item->selected;
                exo_icon_view_queue_draw_item (icon_view, item);
                dirty = TRUE;
            }
            else if (!item->selected)
            {
                exo_icon_view_unselect_all_internal (icon_view);
                exo_icon_view_queue_draw_item (icon_view, item);
                item->selected = TRUE;
                dirty = TRUE;
            }
            exo_icon_view_set_cursor_item (icon_view, item, -1);
            icon_view->priv->anchor_item = item;
        }
    }

    /* emit "selection-changed" and stop drawing keyboard
   * focus indicator if the selection was altered
   */
    if (G_LIKELY (dirty))
    {
        /* reset "draw keyfocus" flag */
        EXO_ICON_VIEW_UNSET_FLAG (icon_view, EXO_ICON_VIEW_DRAW_KEYFOCUS);

        /* emit "selection-changed" */
        g_signal_emit (G_OBJECT (icon_view), icon_view_signals[SELECTION_CHANGED], 0);
    }

    GDK_THREADS_LEAVE ();

    return FALSE;
}



static void  exo_icon_view_single_click_timeout_destroy (gpointer user_data)
{
    EXO_ICON_VIEW (user_data)->priv->single_click_timeout_id = 0;
}



/*----------------------------*
 * Interactive search support *
 *----------------------------*/

/**
 * exo_icon_view_get_enable_search:
 * @icon_view : an #ExoIconView.
 *
 * Returns whether or not the @icon_view allows to start
 * interactive searching by typing in text.
 *
 * Return value: whether or not to let the user search
 *               interactively.
 **/
gboolean  exo_icon_view_get_enable_search (const ExoIconView *icon_view)
{
    g_return_val_if_fail (EXO_IS_ICON_VIEW (icon_view), FALSE);
    return icon_view->priv->enable_search;
}



/**
 * exo_icon_view_set_enable_search:
 * @icon_view     : an #ExoIconView.
 * @enable_search : %TRUE if the user can search interactively.
 *
 * If @enable_search is set, then the user can type in text to search through
 * the @icon_view interactively (this is sometimes called "typeahead find").
 *
 * Note that even if this is %FALSE, the user can still initiate a search
 * using the "start-interactive-search" key binding.
 **/
void  exo_icon_view_set_enable_search (ExoIconView *icon_view, gboolean     enable_search)
{
    g_return_if_fail (EXO_IS_ICON_VIEW (icon_view));

    enable_search = !!enable_search;

    if (G_LIKELY (icon_view->priv->enable_search != enable_search))
    {
        icon_view->priv->enable_search = enable_search;
        g_object_notify (G_OBJECT (icon_view), "enable-search");
    }
}



/**
 * exo_icon_view_get_search_column:
 * @icon_view : an #ExoIconView.
 *
 * Returns the column searched on by the interactive search code.
 *
 * Return value: the column the interactive search code searches in.
 **/
gint
exo_icon_view_get_search_column (const ExoIconView *icon_view)
{
    g_return_val_if_fail (EXO_IS_ICON_VIEW (icon_view), -1);
    return icon_view->priv->search_column;
}



/**
 * exo_icon_view_set_search_column:
 * @icon_view     : an #ExoIconView.
 * @search_column : the column of the model to search in, or -1 to disable searching.
 *
 * Sets @search_column as the column where the interactive search code should search in.
 *
 * If the search column is set, user can use the "start-interactive-search" key
 * binding to bring up search popup. The "enable-search" property controls
 * whether simply typing text will also start an interactive search.
 *
 * Note that @search_column refers to a column of the model.
 **/
void  exo_icon_view_set_search_column (ExoIconView *icon_view, gint         search_column)
{
    g_return_if_fail (EXO_IS_ICON_VIEW (icon_view));
    g_return_if_fail (search_column >= -1);

    if (G_LIKELY (icon_view->priv->search_column != search_column))
    {
        icon_view->priv->search_column = search_column;
        g_object_notify (G_OBJECT (icon_view), "search-column");
    }
}



/**
 * exo_icon_view_get_search_equal_func:
 * @icon_view : an #ExoIconView.
 *
 * Returns the compare function currently in use.
 *
 * Return value: the currently used compare function for the search code.
 **/
ExoIconViewSearchEqualFunc
exo_icon_view_get_search_equal_func (const ExoIconView *icon_view)
{
    g_return_val_if_fail (EXO_IS_ICON_VIEW (icon_view), NULL);
    return icon_view->priv->search_equal_func;
}



/**
 * exo_icon_view_set_search_equal_func:
 * @icon_view            : an #ExoIconView.
 * @search_equal_func    : the compare function to use during the search, or %NULL.
 * @search_equal_data    : user data to pass to @search_equal_func, or %NULL.
 * @search_equal_destroy : destroy notifier for @search_equal_data, or %NULL.
 *
 * Sets the compare function for the interactive search capabilities;
 * note that some like strcmp() returning 0 for equality
 * #ExoIconViewSearchEqualFunc returns %FALSE on matches.
 *
 * Specifying %NULL for @search_equal_func will reset @icon_view to use the default
 * search equal function.
 **/
void  exo_icon_view_set_search_equal_func (ExoIconView  *icon_view,
                                     ExoIconViewSearchEqualFunc search_equal_func,
                                     gpointer                   search_equal_data,
                                     GDestroyNotify             search_equal_destroy)
{
    g_return_if_fail (EXO_IS_ICON_VIEW (icon_view));
    g_return_if_fail (search_equal_func != NULL ||
            (search_equal_data == NULL && search_equal_destroy == NULL));

    /* destroy the previous data (if any) */
    if (G_UNLIKELY (icon_view->priv->search_equal_destroy != NULL
                    && icon_view->priv->search_equal_data != NULL))
        (*icon_view->priv->search_equal_destroy) (icon_view->priv->search_equal_data);

    icon_view->priv->search_equal_func = (search_equal_func != NULL) ?
                search_equal_func :
                exo_icon_view_search_equal_func;
    icon_view->priv->search_equal_data = search_equal_data;
    icon_view->priv->search_equal_destroy = search_equal_destroy;
}



/**
 * exo_icon_view_get_search_position_func:
 * @icon_view : an #ExoIconView.
 *
 * Returns the search dialog positioning function currently in use.
 *
 * Return value: the currently used function for positioning the search dialog.
 **/
ExoIconViewSearchPositionFunc
exo_icon_view_get_search_position_func (const ExoIconView *icon_view)
{
    g_return_val_if_fail (EXO_IS_ICON_VIEW (icon_view), NULL);
    return icon_view->priv->search_position_func;
}



/**
 * exo_icon_view_set_search_position_func:
 * @icon_view               : an #ExoIconView.
 * @search_position_func    : the function to use to position the search dialog, or %NULL.
 * @search_position_data    : user data to pass to @search_position_func, or %NULL.
 * @search_position_destroy : destroy notifier for @search_position_data, or %NULL.
 *
 * Sets the function to use when positioning the seach dialog.
 *
 * Specifying %NULL for @search_position_func will reset @icon_view to use the default
 * search position function.
 **/
void  exo_icon_view_set_search_position_func (ExoIconView  *icon_view,
                                        ExoIconViewSearchPositionFunc search_position_func,
                                        gpointer                      search_position_data,
                                        GDestroyNotify                search_position_destroy)
{
    g_return_if_fail (EXO_IS_ICON_VIEW (icon_view));
    g_return_if_fail (search_position_func != NULL || (search_position_data == NULL && search_position_destroy == NULL));

    /* destroy the previous data (if any) */
    if (icon_view->priv->search_position_destroy != NULL)
        (*icon_view->priv->search_position_destroy) (icon_view->priv->search_position_data);

    icon_view->priv->search_position_func = (search_position_func != NULL) ? search_position_func : exo_icon_view_search_position_func;
    icon_view->priv->search_position_data = search_position_data;
    icon_view->priv->search_position_destroy = search_position_destroy;
}



static void  exo_icon_view_search_activate (GtkEntry  *entry, ExoIconView *icon_view)
{
    GtkTreePath *path;

    /* hide the interactive search dialog */
    exo_icon_view_search_dialog_hide (icon_view->priv->search_window, icon_view);

    /* check if we have a cursor item, and if so, activate it */
    if (exo_icon_view_get_cursor (icon_view, &path, NULL))
    {
        /* only activate the cursor item if it's selected */
        if (exo_icon_view_path_is_selected (icon_view, path))
            exo_icon_view_item_activated (icon_view, path);
        gtk_tree_path_free (path);
    }
}



static void  exo_icon_view_search_dialog_hide (GtkWidget  *search_dialog, ExoIconView *icon_view)
{
    _exo_return_if_fail (GTK_IS_WIDGET (search_dialog));
    _exo_return_if_fail (EXO_IS_ICON_VIEW (icon_view));

    if (icon_view->priv->search_disable_popdown)
        return;

    /* disconnect the "changed" signal handler */
    if (icon_view->priv->search_entry_changed_id != 0)
    {
        g_signal_handler_disconnect (G_OBJECT (icon_view->priv->search_entry), icon_view->priv->search_entry_changed_id);
        icon_view->priv->search_entry_changed_id = 0;
    }

    /* disable the flush timeout */
    if (icon_view->priv->search_timeout_id != 0)
        g_source_remove (icon_view->priv->search_timeout_id);

    /* send focus-out event */
    _exo_gtk_widget_send_focus_change (icon_view->priv->search_entry, FALSE);
    gtk_widget_hide (search_dialog);
    gtk_entry_set_text (GTK_ENTRY (icon_view->priv->search_entry), "");
}



static void  exo_icon_view_search_ensure_directory (ExoIconView *icon_view)
{
    GtkWidget *toplevel;
    GtkWidget *frame;
    GtkWidget *vbox;

    /* determine the toplevel window */
    toplevel = gtk_widget_get_toplevel (GTK_WIDGET (icon_view));

    /* check if we already have a search window */
    if (G_LIKELY (icon_view->priv->search_window != NULL))
    {
        if (gtk_window_has_group (GTK_WINDOW (toplevel)))
            gtk_window_group_add_window (gtk_window_get_group (GTK_WINDOW (toplevel)), GTK_WINDOW (icon_view->priv->search_window));
        else if (gtk_window_has_group (GTK_WINDOW (icon_view->priv->search_window)))
            gtk_window_group_remove_window (gtk_window_get_group (GTK_WINDOW (icon_view->priv->search_window)), GTK_WINDOW (icon_view->priv->search_window));
        return;
    }

    /* allocate a new search window */
    icon_view->priv->search_window = gtk_window_new (GTK_WINDOW_POPUP);
    if (gtk_window_has_group (GTK_WINDOW (toplevel)))
        gtk_window_group_add_window (gtk_window_get_group (GTK_WINDOW (toplevel)), GTK_WINDOW (icon_view->priv->search_window));
    gtk_window_set_modal (GTK_WINDOW (icon_view->priv->search_window), TRUE);
    gtk_window_set_screen (GTK_WINDOW (icon_view->priv->search_window), gtk_widget_get_screen (GTK_WIDGET (icon_view)));

    /* connect signal handlers */
    g_signal_connect (G_OBJECT (icon_view->priv->search_window), "delete-event", G_CALLBACK (exo_icon_view_search_delete_event), icon_view);
    g_signal_connect (G_OBJECT (icon_view->priv->search_window), "scroll-event", G_CALLBACK (exo_icon_view_search_scroll_event), icon_view);
    g_signal_connect (G_OBJECT (icon_view->priv->search_window), "key-press-event", G_CALLBACK (exo_icon_view_search_key_press_event), icon_view);
    g_signal_connect (G_OBJECT (icon_view->priv->search_window), "button-press-event", G_CALLBACK (exo_icon_view_search_button_press_event), icon_view);

    /* allocate the frame widget */
    frame = g_object_new (GTK_TYPE_FRAME, "shadow-type", GTK_SHADOW_ETCHED_IN, NULL);
    gtk_container_add (GTK_CONTAINER (icon_view->priv->search_window), frame);
    gtk_widget_show (frame);

    /* allocate the vertical box */
    vbox = g_object_new (GTK_TYPE_VBOX, "border-width", 3, NULL);
    gtk_container_add (GTK_CONTAINER (frame), vbox);
    gtk_widget_show (vbox);

    /* allocate the search entry widget */
    icon_view->priv->search_entry = gtk_entry_new ();
    g_signal_connect (G_OBJECT (icon_view->priv->search_entry), "activate", G_CALLBACK (exo_icon_view_search_activate), icon_view);
#if GTK_CHECK_VERSION (3, 0, 0)
    g_signal_connect (G_OBJECT (GTK_ENTRY (icon_view->priv->search_entry)), "preedit-changed",
                      G_CALLBACK (exo_icon_view_search_preedit_changed), icon_view);
#else
    g_signal_connect (G_OBJECT (GTK_ENTRY (icon_view->priv->search_entry)->im_context), "preedit-changed",
                      G_CALLBACK (exo_icon_view_search_preedit_changed), icon_view);
#endif
    gtk_box_pack_start (GTK_BOX (vbox), icon_view->priv->search_entry, TRUE, TRUE, 0);
    gtk_widget_realize (icon_view->priv->search_entry);
    gtk_widget_show (icon_view->priv->search_entry);
}



static void  exo_icon_view_search_init (GtkWidget  *search_entry, ExoIconView *icon_view)
{
    GtkTreeModel *model;
    GtkTreeIter   iter;
    const gchar  *text;
    gint          length;
    gint          count = 0;

    _exo_return_if_fail (GTK_IS_ENTRY (search_entry));
    _exo_return_if_fail (EXO_IS_ICON_VIEW (icon_view));

    /* determine the current text for the search entry */
    text = gtk_entry_get_text (GTK_ENTRY (search_entry));
    if (G_UNLIKELY (text == NULL))
        return;

    /* unselect all items */
    exo_icon_view_unselect_all (icon_view);

    /* renew the flush timeout */
    if ((icon_view->priv->search_timeout_id != 0))
    {
        /* drop the previous timeout */
        g_source_remove (icon_view->priv->search_timeout_id);

        /* schedule a new timeout */
        icon_view->priv->search_timeout_id = g_timeout_add_full (G_PRIORITY_LOW, EXO_ICON_VIEW_SEARCH_DIALOG_TIMEOUT,
                                                                 exo_icon_view_search_timeout, icon_view,
                                                                 exo_icon_view_search_timeout_destroy);
    }

    /* verify that we have a search text */
    length = strlen (text);
    if (length < 1)
        return;

    /* verify that we have a valid model */
    model = exo_icon_view_get_model (icon_view);
    if (G_UNLIKELY (model == NULL))
        return;

    /* start the interactive search */
    if (gtk_tree_model_get_iter_first (model, &iter))
    {
        /* let's see if we have a match */
        if (exo_icon_view_search_iter (icon_view, model, &iter, text, &count, 1))
            icon_view->priv->search_selected_iter = 1;
    }
}



static gboolean  exo_icon_view_search_iter (ExoIconView  *icon_view,
                           GtkTreeModel *model,
                           GtkTreeIter  *iter,
                           const gchar  *text,
                           gint  *count,
                           gint          n)
{
    GtkTreePath *path;

    _exo_return_val_if_fail (EXO_IS_ICON_VIEW (icon_view), FALSE);
    _exo_return_val_if_fail (GTK_IS_TREE_MODEL (model), FALSE);
    _exo_return_val_if_fail (count != NULL, FALSE);

    /* search for a matching item */
    do
    {
        if (!(*icon_view->priv->search_equal_func) (model, icon_view->priv->search_column, text, iter, icon_view->priv->search_equal_data))
        {
            (*count) += 1;
            if (*count == n)
            {
                /* place cursor on the item and select it */
                path = gtk_tree_model_get_path (model, iter);
                exo_icon_view_select_path (icon_view, path);
                exo_icon_view_set_cursor (icon_view, path, NULL, FALSE);
                gtk_tree_path_free (path);
                return TRUE;
            }
        }
    }
    while (gtk_tree_model_iter_next (model, iter));

    /* no match */
    return FALSE;
}



static void  exo_icon_view_search_move (GtkWidget  *widget, ExoIconView *icon_view, gboolean     move_up)
{
    GtkTreeModel *model;
    const gchar  *text;
    GtkTreeIter   iter;
    gboolean      retval;
    gint          length;
    gint          count = 0;

    /* determine the current text for the search entry */
    text = gtk_entry_get_text (GTK_ENTRY (icon_view->priv->search_entry));
    if (G_UNLIKELY (text == NULL))
        return;

    /* if we already selected the first item, we cannot go up */
    if (move_up && icon_view->priv->search_selected_iter == 1)
        return;

    /* determine the length of the search text */
    length = strlen (text);
    if (G_UNLIKELY (length < 1))
        return;

    /* unselect all items */
    exo_icon_view_unselect_all (icon_view);

    /* verify that we have a valid model */
    model = exo_icon_view_get_model (icon_view);
    if (G_UNLIKELY (model == NULL))
        return;

    /* determine the iterator to the first item */
    if (!gtk_tree_model_get_iter_first (model, &iter))
        return;

    /* first attempt to search */
    retval = exo_icon_view_search_iter (icon_view, model, &iter, text, &count, move_up
                                        ? (icon_view->priv->search_selected_iter - 1)
                                        : (icon_view->priv->search_selected_iter + 1));

    /* check if we found something */
    if (G_LIKELY (retval))
    {
        /* match found */
        icon_view->priv->search_selected_iter += move_up ? -1 : 1;
    } else {
        /* return to old iter */
        if (gtk_tree_model_get_iter_first (model, &iter))
        {
            count = 0;
            exo_icon_view_search_iter (icon_view, model, &iter, text, &count, icon_view->priv->search_selected_iter);
        }
    }
}



#if GTK_CHECK_VERSION (3, 0, 0)
static void exo_icon_view_search_preedit_changed (GtkEntry *entry, gchar *preedit,
                                      #else
static void exo_icon_view_search_preedit_changed (GtkIMContext *im_context,
                                      #endif
                                      ExoIconView  *icon_view)
{
    icon_view->priv->search_imcontext_changed = TRUE;

    /* re-register the search timeout */
    if (G_LIKELY (icon_view->priv->search_timeout_id != 0))
    {
        g_source_remove (icon_view->priv->search_timeout_id);
        icon_view->priv->search_timeout_id = g_timeout_add_full (G_PRIORITY_LOW, EXO_ICON_VIEW_SEARCH_DIALOG_TIMEOUT,
                                                                 exo_icon_view_search_timeout, icon_view,
                                                                 exo_icon_view_search_timeout_destroy);
    }
}



static gboolean  exo_icon_view_search_start (ExoIconView *icon_view, gboolean     keybinding)
{
    GTypeClass *klass;

    /* check if typeahead is enabled */
    if (G_UNLIKELY (!icon_view->priv->enable_search && !keybinding))
        return FALSE;

    /* check if we already display the search window */
    if (icon_view->priv->search_window != NULL && gtk_widget_get_visible (icon_view->priv->search_window))
        return TRUE;

    /* we only start interactive search if we have focus,
   * we don't want to start interactive search if one of our children has the focus.
   */
    if (!gtk_widget_has_focus (GTK_WIDGET (icon_view)))
        return FALSE;

    /* verify that we have a search column */
    if (G_UNLIKELY (icon_view->priv->search_column < 0))
        return FALSE;

    exo_icon_view_search_ensure_directory (icon_view);

    /* clear search entry if we were started by a keybinding */
    if (G_UNLIKELY (keybinding))
        gtk_entry_set_text (GTK_ENTRY (icon_view->priv->search_entry), "");

    /* determine the position for the search dialog */
    (*icon_view->priv->search_position_func) (icon_view, icon_view->priv->search_window, icon_view->priv->search_position_data);

    /* display the search dialog */
    gtk_widget_show (icon_view->priv->search_window);

    /* connect "changed" signal for the entry */
    if (G_UNLIKELY (icon_view->priv->search_entry_changed_id == 0))
    {
        icon_view->priv->search_entry_changed_id = g_signal_connect (G_OBJECT (icon_view->priv->search_entry), "changed",
                                                                     G_CALLBACK (exo_icon_view_search_init), icon_view);
    }

    /* start the search timeout */
    icon_view->priv->search_timeout_id = g_timeout_add_full (G_PRIORITY_LOW, EXO_ICON_VIEW_SEARCH_DIALOG_TIMEOUT,
                                                             exo_icon_view_search_timeout, icon_view,
                                                             exo_icon_view_search_timeout_destroy);

    /* grab focus will select all the text, we don't want that to happen, so we
   * call the parent instance and bypass the selection change. This is probably
   * really hackish, but GtkTreeView does it as well *hrhr*
   */
    klass = g_type_class_peek_parent (GTK_ENTRY_GET_CLASS (icon_view->priv->search_entry));
    (*GTK_WIDGET_CLASS (klass)->grab_focus) (icon_view->priv->search_entry);

    /* send focus-in event */
    _exo_gtk_widget_send_focus_change (icon_view->priv->search_entry, TRUE);

    /* search first matching iter */
    exo_icon_view_search_init (icon_view->priv->search_entry, icon_view);

    return TRUE;
}



static gboolean  exo_icon_view_search_equal_func (GtkTreeModel *model, gint column, const gchar  *key, GtkTreeIter *iter, gpointer user_data)
{
    const gchar *str;
    gboolean     retval = TRUE;
    GValue       transformed = { 0, };
    GValue       value = { 0, };
    gchar       *case_normalized_string = NULL;
    gchar       *case_normalized_key = NULL;
    gchar       *normalized_string;
    gchar       *normalized_key;

    /* determine the value for the column/iter */
    gtk_tree_model_get_value (model, iter, column, &value);

    /* try to transform the value to a string */
    g_value_init (&transformed, G_TYPE_STRING);
    if (!g_value_transform (&value, &transformed))
    {
        g_value_unset (&value);
        return TRUE;
    }
    g_value_unset (&value);

    /* check if we have a string value */
    str = g_value_get_string (&transformed);
    if (G_UNLIKELY (str == NULL))
    {
        g_value_unset (&transformed);
        return TRUE;
    }

    /* normalize the string and the key */
    normalized_string = g_utf8_normalize (str, -1, G_NORMALIZE_ALL);
    normalized_key = g_utf8_normalize (key, -1, G_NORMALIZE_ALL);

    /* check if we have normalized both string */
    if (G_LIKELY (normalized_string != NULL && normalized_key != NULL))
    {
        case_normalized_string = g_utf8_casefold (normalized_string, -1);
        case_normalized_key = g_utf8_casefold (normalized_key, -1);

        /* compare the casefolded strings */
        if (strncmp (case_normalized_key, case_normalized_string, strlen (case_normalized_key)) == 0)
            retval = FALSE;
    }

    /* cleanup */
    g_free (case_normalized_string);
    g_free (case_normalized_key);
    g_value_unset (&transformed);
    g_free (normalized_string);
    g_free (normalized_key);

    return retval;
}



static void  exo_icon_view_search_position_func (ExoIconView *icon_view, GtkWidget  *search_dialog, gpointer user_data)
{
    GtkRequisition requisition;
    GdkRectangle   monitor;
    GdkWindow     *view_window = gtk_widget_get_window (GTK_WIDGET (icon_view));
    GdkScreen     *screen = gtk_widget_get_screen(GTK_WIDGET(icon_view));
    gint           view_width, view_height;
    gint           view_x, view_y;
    gint           monitor_num;
    gint           x, y;

    /* determine the monitor geometry */
    monitor_num = gdk_screen_get_monitor_at_window (screen, view_window);
    gdk_screen_get_monitor_geometry (screen, monitor_num, &monitor);

    /* make sure the search dialog is realized */
    gtk_widget_realize (search_dialog);

    gdk_window_get_origin (view_window, &view_x, &view_y);
    view_width = gdk_window_get_width (view_window);
    view_height = gdk_window_get_height (view_window);
    gtk_widget_size_request (search_dialog, &requisition);

    if (view_x + view_width - requisition.width > gdk_screen_get_width (screen))
        x = gdk_screen_get_width (screen) - requisition.width;
    else if (view_x + view_width - requisition.width < 0)
        x = 0;
    else
        x = view_x + view_width - requisition.width;

    if (view_y + view_height > gdk_screen_get_height (screen))
        y = gdk_screen_get_height (screen) - requisition.height;
    else if (view_y + view_height < 0) /* isn't really possible ... */
        y = 0;
    else
        y = view_y + view_height;

    gtk_window_move (GTK_WINDOW (search_dialog), x, y);
}



static gboolean  exo_icon_view_search_button_press_event (GtkWidget  *widget, GdkEventButton *event, ExoIconView  *icon_view)
{
    _exo_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
    _exo_return_val_if_fail (EXO_IS_ICON_VIEW (icon_view), FALSE);

    /* hide the search dialog */
    exo_icon_view_search_dialog_hide (widget, icon_view);

    if (event->window == icon_view->priv->bin_window)
        exo_icon_view_button_press_event (GTK_WIDGET (icon_view), event);

    return TRUE;
}



static gboolean  exo_icon_view_search_delete_event (GtkWidget  *widget, GdkEventAny *event, ExoIconView *icon_view)
{
    _exo_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
    _exo_return_val_if_fail (EXO_IS_ICON_VIEW (icon_view), FALSE);

    /* hide the search dialog */
    exo_icon_view_search_dialog_hide (widget, icon_view);

    return TRUE;
}



static gboolean  exo_icon_view_search_key_press_event (GtkWidget  *widget, GdkEventKey *event, ExoIconView *icon_view)
{
    gboolean retval = FALSE;
    int nonlatin_key = 0;

    _exo_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
    _exo_return_val_if_fail (EXO_IS_ICON_VIEW (icon_view), FALSE);

    /* close window and cancel the search */
    if (event->keyval == GDK_KEY_Escape || event->keyval == GDK_KEY_Tab)
    {
        exo_icon_view_search_dialog_hide (widget, icon_view);
        return TRUE;
    }

    //sfm need to transpose nonlatin keyboard layout ?
    if ( !( ( GDK_KEY_0 <= event->keyval && event->keyval <= GDK_KEY_9 ) ||
            ( GDK_KEY_A <= event->keyval && event->keyval <= GDK_KEY_Z ) ||
            ( GDK_KEY_a <= event->keyval && event->keyval <= GDK_KEY_z ) ) )
    {
        nonlatin_key = event->keyval;
        transpose_nonlatin_keypress( event );
    }

    /* select previous matching iter */
    if (event->keyval == GDK_KEY_Up || event->keyval == GDK_KEY_KP_Up)
    {
        exo_icon_view_search_move (widget, icon_view, TRUE);
        retval = TRUE;
    }

    if (((event->state & (GDK_CONTROL_MASK | GDK_SHIFT_MASK)) == (GDK_CONTROL_MASK | GDK_SHIFT_MASK))
            && (event->keyval == GDK_KEY_g || event->keyval == GDK_KEY_G))
    {
        exo_icon_view_search_move (widget, icon_view, TRUE);
        retval = TRUE;
    }

    /* select next matching iter */
    if (event->keyval == GDK_KEY_Down || event->keyval == GDK_KEY_KP_Down)
    {
        exo_icon_view_search_move (widget, icon_view, FALSE);
        retval = TRUE;
    }

    if (((event->state & (GDK_CONTROL_MASK | GDK_SHIFT_MASK)) == GDK_CONTROL_MASK)
            && (event->keyval == GDK_KEY_g || event->keyval == GDK_KEY_G))
    {
        exo_icon_view_search_move (widget, icon_view, FALSE);
        retval = TRUE;
    }

    /* renew the flush timeout */
    if (retval && (icon_view->priv->search_timeout_id != 0))
    {
        /* drop the previous timeout */
        g_source_remove (icon_view->priv->search_timeout_id);

        /* schedule a new timeout */
        icon_view->priv->search_timeout_id = g_timeout_add_full (G_PRIORITY_LOW, EXO_ICON_VIEW_SEARCH_DIALOG_TIMEOUT,
                                                                 exo_icon_view_search_timeout, icon_view,
                                                                 exo_icon_view_search_timeout_destroy);
    }

    if ( !retval && nonlatin_key != 0 )
        event->keyval = nonlatin_key;
    return retval;
}



static gboolean  exo_icon_view_search_scroll_event (GtkWidget  *widget, GdkEventScroll *event, ExoIconView  *icon_view)
{
    gboolean retval = TRUE;

    _exo_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
    _exo_return_val_if_fail (EXO_IS_ICON_VIEW (icon_view), FALSE);

    if (event->direction == GDK_SCROLL_UP)
        exo_icon_view_search_move (widget, icon_view, TRUE);
    else if (event->direction == GDK_SCROLL_DOWN)
        exo_icon_view_search_move (widget, icon_view, FALSE);
    else
        retval = FALSE;

    return retval;
}



static gboolean  exo_icon_view_search_timeout (gpointer user_data)
{
    ExoIconView *icon_view = EXO_ICON_VIEW (user_data);

    GDK_THREADS_ENTER ();
    exo_icon_view_search_dialog_hide (icon_view->priv->search_window, icon_view);
    GDK_THREADS_LEAVE ();

    return FALSE;
}



static void  exo_icon_view_search_timeout_destroy (gpointer user_data)
{
    EXO_ICON_VIEW (user_data)->priv->search_timeout_id = 0;
}

gboolean exo_icon_view_is_rubber_banding_active( ExoIconView* icon_view )
{
    return icon_view->priv->doing_rubberband;
}

