/*
 *
 *  This file is part of the XForms library package.
 *
 * XForms is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1, or
 * (at your option) any later version.
 *
 * XForms 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with XForms; see the file COPYING.  If not, write to
 * the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
 * MA 02111-1307, USA.
 *
 */


/**
 * \file lframe.c
 *
 *.
 *  This file is part of the XForms library package.
 *  Copyright (c) 1996-2002  T.C. Zhao
 *  All rights reserved.
 *.
 *
 *  similar to FL_FRAME, but label is drawn On the frame
 *
 */

#if defined F_ID || defined DEBUG
char *fl_id_lframe = "$Id: lframe.c,v 1.8 2008/03/19 21:04:23 jtt Exp $";
#endif

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

#include "include/forms.h"
#include "flinternal.h"


/***************************************
 ***************************************/

static int
handle_lframe( FL_OBJECT * ob,
			   int         event,
			   FL_Coord    mx   FL_UNUSED_ARG,
			   FL_Coord    my   FL_UNUSED_ARG,
			   int         key  FL_UNUSED_ARG,
			   void *      ev   FL_UNUSED_ARG )
{
    int sx,
		sy,
		sw,
		sh,
		align,
		bw = FL_abs( ob->bw ),
		dy;
    int margin,
		len;

    switch ( event )
    {
		case FL_DRAW:
			fl_drw_frame( ob->type, ob->x, ob->y, ob->w, ob->h,
						  ob->col1, ob->bw );
			/* fall through */

		case FL_DRAWLABEL:
			if ( ! ( len = strlen( ob->label ) ) )
				return 0;

			fl_get_string_dimension( ob->lstyle, ob->lsize,
									 ob->label, len, &sw, &sh );

			align = ob->align & ~FL_ALIGN_INSIDE;

			sw += 8;
			margin = 11 + ob->w * 0.02;
			dy = 0;

			if ( ob->type == FL_ROUNDED_FRAME )
				margin += 7;

			if ( ob->w - sw < 2 * margin )
			{
				margin /= 2;
				sw -= 2;
			}

			if ( ob->w - sw < 2 * margin )
			{
				margin /= 2;
				sw -= 2;
			}

			if ( ob->type == FL_UP_FRAME || ob->type == FL_DOWN_FRAME )
				dy = ( bw + 1 ) / 2;

			if ( align == FL_ALIGN_TOP_RIGHT || align == FL_ALIGN_RIGHT )
			{
				sx = ob->x + ob->w - margin - sw;
				sy = ob->y - sh / 2 - dy;
			}
			else if ( align == FL_ALIGN_TOP )
			{
				sx = ob->x + ( ob->w - sw ) / 2;
				sy = ob->y - sh / 2 - dy;
			}
			else if ( align == FL_ALIGN_LEFT_BOTTOM )
			{
				sx = ob->x + margin;
				sy = ob->y + ob->h - sh / 2 + dy;
			}
			else if ( align == FL_ALIGN_BOTTOM_RIGHT )
			{
				sx = ob->x + ob->w - margin - sw;
				sy = ob->y + ob->h - sh / 2 + dy;
			}
			else if ( align == FL_ALIGN_BOTTOM )
			{
				sx = ob->x + ( ob->w - sw ) / 2;
				sy = ob->y + ob->h - sh / 2 + dy;
			}
			else
			{
				sx = ob->x + margin;
				sy = ob->y - sh / 2 - dy;
			}

			fl_drw_box( FL_FLAT_BOX, sx, sy, sw, sh, ob->col2, 0 );

			fl_drw_text( FL_ALIGN_CENTER, sx, sy, sw, sh,
						 ob->lcol, ob->lstyle, ob->lsize, ob->label );
			break;
    }

    return 0;
}


/***************************************
 ***************************************/

FL_OBJECT *
fl_create_labelframe( int          type,
					  FL_Coord     x,
					  FL_Coord     y,
					  FL_Coord     w,
					  FL_Coord     h,
					  const char * label )
{
    FL_OBJECT *ob;

    ob = fl_make_object( FL_LABELFRAME, type, x, y, w, h, label,
						 handle_lframe );
    ob->boxtype = FL_NO_BOX;
    ob->col1    = FL_FRAME_COL1;
    ob->col2    = FL_FRAME_COL2;
    ob->lcol    = FL_FRAME_LCOL;
    ob->align   = FL_ALIGN_TOP_LEFT;
    ob->active  = 0;

    return ob;
}


/***************************************
 ***************************************/

FL_OBJECT *
fl_add_labelframe( int          type,
				   FL_Coord     x,
				   FL_Coord     y,
				   FL_Coord     w,
				   FL_Coord     h,
				   const char * label )
{
    FL_OBJECT *ob = fl_create_labelframe( type, x, y, w, h, label );

    fl_add_object( fl_current_form, ob );

    return ob;
}
