/* $Xorg: XawIm.c,v 1.6 2001/02/09 02:03:47 xorgcvs Exp $ */

/*
 * Copyright 1991 by OMRON Corporation
 *
 * Permission to use, copy, modify, distribute, and sell this software and its
 * documentation for any purpose is hereby granted without fee, provided that
 * the above copyright notice appear in all copies and that both that
 * copyright notice and this permission notice appear in supporting
 * documentation, and that the name of OMRON not be used in advertising or
 * publicity pertaining to distribution of the software without specific,
 * written prior permission.  OMRON makes no representations about the
 * suitability of this software for any purpose.  It is provided "as is"
 * without express or implied warranty.
 *
 * OMRON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
 * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
 * OMRON BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
 * ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
 * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTUOUS ACTION,
 * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
 * SOFTWARE. 
 *
 *	Author:	Seiji Kuwari	OMRON Corporation
 *				kuwa@omron.co.jp
 *				kuwa%omron.co.jp@uunet.uu.net
 *
 * Some bugfixes to avoid gcc -Wall warnings implemented, Roland Krause 2000
 */				


/*

Copyright 1994, 1998  The Open Group

Permission to use, copy, modify, distribute, and sell this software and its
documentation for any purpose is hereby granted without fee, provided that
the above copyright notice appear in all copies and that both that
copyright notice and this permission notice appear in supporting
documentation.

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Except as contained in this notice, the name of The Open Group shall not be
used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from The Open Group.

This file contains modifications for XawPlus, Roland Krause 2000

*/

#include <X11/IntrinsicP.h>
#include <X11/StringDefs.h>
#include <X11/Xos.h>
#include <X11/Xfuncs.h>
#include <X11/ShellP.h>
#include <X11/XawPlus/TextP.h>
#include <X11/XawPlus/MultiSrc.h>
#include <X11/XawPlus/MultiSinkP.h>
#include <X11/XawPlus/XawImP.h>
#include <X11/XawPlus/VendorEP.h>
#include "XawI18n.h"
#include <ctype.h>

#if NeedVarargsPrototypes
# include <stdarg.h>
# define Va_start(a,b) va_start(a,b)
#else
# include <varargs.h>
# define Va_start(a,b) va_start(a)
#endif

#define maxAscentOfFontSet(fontset)     \
        ( - (XExtentsOfFontSet((fontset)))->max_logical_extent.y)

#define maxHeightOfFontSet(fontset) \
        ((XExtentsOfFontSet((fontset)))->max_logical_extent.height)

#define maxDescentOfFontSet(fontset) \
        (maxHeightOfFontSet(fontset) - maxAscentOfFontSet(fontset))

#define Offset(field) (XtOffsetOf(XawIcTablePart, field))

/*****************************************************
 *
 * Forward reference prototypes
 *
 *****************************************************/
 
static XawIcTableList CurrentSharedIcTable( 
#if NeedFunctionPrototypes
    XawVendorShellExtPart* /* ve */ 
#endif
);

static void DestroyIC( 
#if NeedFunctionPrototypes
    Widget /* w */, 
    XawVendorShellExtPart* /* ve */
#endif
);

static XtResource resources[] =
{
    {
	XtNfontSet, XtCFontSet, XtRFontSet, sizeof(XFontSet),
	Offset (font_set), XtRString, XtDefaultFontSet
    },
    {
	XtNforeground, XtCForeground, XtRPixel, sizeof(Pixel),
	Offset (foreground), XtRString, (XtPointer)"XtDefaultForeground"
    },
    {
	XtNbackground, XtCBackground, XtRPixel, sizeof(Pixel),
	Offset (background), XtRString, (XtPointer)"XtDefaultBackground"
    },
    {
	XtNbackgroundPixmap, XtCPixmap, XtRPixmap, sizeof(Pixmap),
	Offset (bg_pixmap), XtRImmediate, (XtPointer) XtUnspecifiedPixmap
    },
    {
	XtNinsertPosition, XtCTextPosition, XtRInt, sizeof (XawTextPosition),
	Offset (cursor_position), XtRImmediate, (XtPointer) 0
    }
};
#undef Offset


static void SetVaArg( arg, value )
    XPointer *arg, value;
{
    *arg = value;
}

static VendorShellWidget SearchVendorShell( w )
    Widget w;
{
    while(w && !XtIsShell(w)) w = XtParent(w);
    if (w && XtIsVendorShell(w)) return((VendorShellWidget)w);
    return(NULL);
}

static XContext extContext = (XContext)NULL;

static XawVendorShellExtPart *SetExtPart( w, vew )
    VendorShellWidget w;
    XawVendorShellExtWidget vew;
{
    contextDataRec *contextData;

    if (extContext == (XContext)NULL) extContext = XUniqueContext();

    contextData = XtNew(contextDataRec);
    contextData->parent = (Widget)w;
    contextData->ve = (Widget)vew;
    if (XSaveContext(XtDisplay(w), (Window)w, extContext, (char *)contextData)) {
	return(NULL);
    }
    return(&(vew->vendor_ext));
}

static XawVendorShellExtPart *GetExtPart( w )
    VendorShellWidget w;
{
    contextDataRec *contextData;
    XawVendorShellExtWidget vew;

    if (XFindContext(XtDisplay(w), (Window)w, extContext,
		      (XPointer*)&contextData)) {
	return(NULL);
    }
    vew = (XawVendorShellExtWidget)contextData->ve;
    return(&(vew->vendor_ext));
}

static Boolean IsSharedIC( ve )
    XawVendorShellExtPart * ve;
{
    return( ve->ic.shared_ic );
}

static XawIcTableList GetIcTableShared( w, ve )
    Widget w;
    XawVendorShellExtPart * ve;
{
    XawIcTableList	p;

    for (p = ve->ic.ic_table; p; p = p->next) {
	if (p->widget == w) {
	    if (IsSharedIC(ve)) {
		return(ve->ic.shared_ic_table);
	    } else {
		return(p);
	    }
	}
    }
    return(NULL);
}

static XawIcTableList GetIcTable( w, ve )
    Widget w;
    XawVendorShellExtPart * ve;
{
    XawIcTableList	p;

    for (p = ve->ic.ic_table; p; p = p->next) {
	if (p->widget == w) {
	    return(p);
	}
    }
    return(NULL);
}

static XIMStyle GetInputStyleOfIC( ve )
    XawVendorShellExtPart * ve;
{

    if (!ve) return((XIMStyle)0);
    return(ve->ic.input_style);
}

static void ConfigureCB( w, closure, event )
    Widget	w;
    XtPointer	closure;
    XEvent *	event;
{
    XawIcTableList		p;
    XawVendorShellExtPart	*ve;
    VendorShellWidget		vw;
    XVaNestedList		pe_attr;
    XRectangle			pe_area;
    XawTextMargin		*margin;

    if (event->type != ConfigureNotify) return;

    if ((vw = SearchVendorShell(w)) == NULL) return;

    if ((ve = GetExtPart(vw)) != NULL) {
        if (IsSharedIC(ve)) return;
	if ((ve->im.xim == NULL) ||
	    ((p = GetIcTableShared(w, ve)) == NULL) ||
	    (p->xic == NULL) || !(p->input_style & XIMPreeditPosition)) return;
	pe_area.x = 0;
        pe_area.y = 0;
        pe_area.width = w->core.width;
        pe_area.height = w->core.height;
	margin = &(((TextWidget)w)->text.margin);
	pe_area.x += margin->left;
	pe_area.y += margin->top;
	pe_area.width -= (margin->left + margin->right - 1);
	pe_area.height -= (margin->top + margin->bottom - 1);

	pe_attr = XVaCreateNestedList(0, XNArea, &pe_area, NULL);
	XSetICValues(p->xic, XNPreeditAttributes, pe_attr, NULL);
	XtFree(pe_attr);
    }
}

static XContext errContext = (XContext)NULL;

static Widget SetErrCnxt( w, xim )
    Widget w;
    XIM xim;
{
    contextErrDataRec *contextErrData;

    if (errContext == (XContext)NULL) errContext = XUniqueContext();

    contextErrData = XtNew(contextErrDataRec);
    contextErrData->widget = w;
    contextErrData->xim = xim;
    if (XSaveContext(XtDisplay(w), (Window)xim, errContext,
	(char *)contextErrData)) {
	return(NULL);
    }
    return(contextErrData->widget);
}

/*  static Widget GetErrCnxt( error_im )
    XIM	error_im;
{
    contextErrDataRec *contextErrData;

    if (XFindContext(XDisplayOfIM(error_im), (Window)error_im, errContext,
		      (XPointer*)&contextErrData)) {
	return(NULL);
    }
    return(contextErrData->widget);
} */

static void CloseIM( ve )
    XawVendorShellExtPart * ve;
{
    if (ve->im.xim)
	XCloseIM(ve->im.xim);
}

static Dimension SetVendorShellHeight( ve, height )
    XawVendorShellExtPart* ve;
    Dimension height;
{
    Arg			args[2];
    Cardinal		i = 0;

   if (ve->im.area_height < height || height == 0) {
       XtSetArg(args[i], XtNheight,
		(ve->parent->core.height + height - ve->im.area_height));
       ve->im.area_height = height;
       XtSetValues(ve->parent, args, 1);
   }
   return(ve->im.area_height);
}

static void DestroyAllIM( ve )
    XawVendorShellExtPart * ve;
{
    XawIcTableList	p;
    contextErrDataRec *contextErrData;

    /*
     * Destory all ICs
     */
    if (IsSharedIC(ve)) {
        if ((p = ve->ic.shared_ic_table) && p->xic) {
            DestroyIC(p->widget, ve);
            p->xic = NULL;
            p->ic_focused = FALSE;
        }
    } else {
	for (p = ve->ic.ic_table; p; p = p->next) {
	    if (p->xic == NULL) continue;
	    DestroyIC(p->widget, ve);
	    p->xic = NULL;
	    p->ic_focused = FALSE;
	}
    }
    if (!ve->im.xim) return;
    /*
     * Close Input Method
     */
    CloseIM(ve);
    if (!XFindContext(XDisplayOfIM(ve->im.xim), (Window)ve->im.xim, errContext,
		      (XPointer*)&contextErrData)) {
	if (contextErrData) XtFree((char *)contextErrData);
    }
    XDeleteContext(XDisplayOfIM(ve->im.xim), (Window)ve->im.xim, errContext);
    ve->im.xim = NULL;

    /*
     * resize vendor shell to core size
     */
    (void) SetVendorShellHeight(ve, 0);
    /*
    XawVendorShellExtResize(vw);
    */
    return;
}

static void FreeAllDataOfVendorShell(ve, vw)
    XawVendorShellExtPart * ve;
    VendorShellWidget vw;
{
    XawIcTableList       p, next;
    contextErrDataRec *contextErrData;

    if (!XFindContext(XtDisplay(vw), (Window)vw, extContext,
		      (XPointer*)&contextErrData)) {
	if (contextErrData) XtFree((char *)contextErrData);
    }
    XDeleteContext(XtDisplay(vw), (Window)vw, extContext);
    if (ve->ic.shared_ic_table)
        XtFree((char *)ve->ic.shared_ic_table);
    if (ve->im.resources) XtFree((char *)ve->im.resources);
    for (p = ve->ic.ic_table; p; p = next) {
        next = p->next;
        XtFree((char *)p);
    }
}

static void VendorShellDestroyed( w, cl_data, ca_data )
    Widget w;
    XtPointer cl_data, ca_data;
{
    XawVendorShellExtPart	*ve;

    if ( ( ve = GetExtPart( (VendorShellWidget) w ) ) == NULL ) return;
    DestroyAllIM( ve );
    FreeAllDataOfVendorShell( ve, (VendorShellWidget) w );
    return;
}

/*  static int IOErrorHandler( error_im )
    XIM error_im;
{
    VendorShellWidget vw;
    XawVendorShellExtPart * ve;

    if ((vw = (VendorShellWidget)GetErrCnxt(error_im)) == NULL
	|| (ve = GetExtPart(vw)) == NULL) return(0);

    DestroyAllIM(ve);
    return(0);
} */

/*
 * Attempt to open an input method
 */

static void OpenIM(ve)
    XawVendorShellExtPart * ve;
{
    int		i;
    char	*p, *s, *ns, *end, *pbuf, buf[32];
    XIM		xim = NULL;
    XIMStyles	*xim_styles;
    XIMStyle	input_style = 0;
    Boolean	found;

    if (ve->im.open_im == False) return;
    ve->im.xim = NULL;
    if (ve->im.input_method == NULL) {
	if ((p = XSetLocaleModifiers("@im=none")) != NULL && *p)
	    xim = XOpenIM(XtDisplay(ve->parent), NULL, NULL, NULL);
    } else {
	/* no fragment can be longer than the whole string */
	int	len = strlen (ve->im.input_method) + 5;

	if (len < sizeof buf) pbuf = buf;
	else pbuf = XtMalloc (len);

	if (pbuf == NULL) return;

	for(ns=s=ve->im.input_method; ns && *s;) {
	    /* skip any leading blanks */
	    while (*s && isspace(*s)) s++;
	    if (!*s) break;
	    if ((ns = end = strchr(s, ',')) == NULL)
		end = s + strlen(s);
	    /* strip any trailing blanks */
	    while (isspace(*end)) end--;

	    strcpy (pbuf, "@im=");
	    strncat (pbuf, s, end - s);
	    pbuf[end - s + 4] = '\0';

	    if ((p = XSetLocaleModifiers(pbuf)) != NULL && *p
		&& (xim = XOpenIM(XtDisplay(ve->parent), NULL, NULL, NULL)) != NULL)
		break;

	    s = ns + 1;
	}

	if (pbuf != buf) XtFree (pbuf);
    }
    if (xim == NULL) {
	if ((p = XSetLocaleModifiers("")) != NULL) {
	    xim = XOpenIM(XtDisplay(ve->parent), NULL, NULL, NULL);
	}
    }
    if (xim == NULL) {
	XtAppWarning(XtWidgetToApplicationContext(ve->parent),
	    "Input Method Open Failed");
	return;
    }
    if (XGetIMValues(xim, XNQueryInputStyle, &xim_styles, NULL)
	|| !xim_styles) {
	XtAppWarning(XtWidgetToApplicationContext(ve->parent), 
	    "input method doesn't support any style");
	XCloseIM(xim);
	return;
    }
    found = False;
    for(ns = s = ve->im.preedit_type; s && !found;) {
	while (*s && isspace(*s)) s++;
	if (!*s) break;
	if ((ns = end = strchr(s, ',')) == NULL)
	    end = s + strlen(s);
	while (isspace(*end)) end--;

	if (!strncmp(s, "OverTheSpot", end - s)) {
	    input_style = (XIMPreeditPosition | XIMStatusArea);
	} else if (!strncmp(s, "OffTheSpot", end - s)) {
	    input_style = (XIMPreeditArea | XIMStatusArea);
	} else if (!strncmp(s, "Root", end - s)) {
	    input_style = (XIMPreeditNothing | XIMStatusNothing);
	}
	for (i = 0; (unsigned short)i < xim_styles->count_styles; i++)
	    if (input_style == xim_styles->supported_styles[i]) {
		ve->ic.input_style = input_style;
		SetErrCnxt(ve->parent, xim);
		ve->im.xim = xim;
		found = True;
		break;
	    }

	s = ns + 1;
    }
    XFree(xim_styles);

    if (!found) {
	XCloseIM(xim);
	XtAppWarning(XtWidgetToApplicationContext(ve->parent),
		     "input method doesn't support my input style");
    }
}

static Boolean ResizeVendorShell_Core(vw, ve, p)
    VendorShellWidget vw;
    XawVendorShellExtPart * ve;
    XawIcTableList p;
{
    XVaNestedList		pe_attr, st_attr;
    XRectangle			pe_area, st_area;
    XRectangle			*get_pe_area = NULL, *get_st_area = NULL;

    st_area.width = 0;
    if (p->input_style & XIMStatusArea) {
	st_attr = XVaCreateNestedList(0, XNArea, &get_st_area, NULL);
	XGetICValues(p->xic, XNStatusAttributes, st_attr, NULL);
	XFree(st_attr);
	if (p->xic == NULL) {
	    return(FALSE);
	}
	st_area.x = 0;
	st_area.y = vw->core.height - ve->im.area_height;
	st_area.width = get_st_area->width;
	st_area.height = get_st_area->height;
	XFree(get_st_area);
	st_attr = XVaCreateNestedList(0, XNArea, &st_area, NULL);
	XSetICValues(p->xic, XNStatusAttributes, st_attr, NULL);
	XFree(st_attr);
	if (p->xic == NULL) {
	    return(FALSE);
	}
    }
    if (p->input_style & XIMPreeditArea) {
	pe_attr = XVaCreateNestedList(0, XNArea, &get_pe_area, NULL);
	XGetICValues(p->xic, XNPreeditAttributes, pe_attr, NULL);
	XFree(pe_attr);
	if (p->xic == NULL) {
	    return(FALSE);
	}
	pe_area.x = st_area.width;
	pe_area.y = vw->core.height - ve->im.area_height;
	pe_area.width = vw->core.width;
	pe_area.height = get_pe_area->height;
	if (p->input_style & XIMStatusArea) {
	    pe_area.width -= st_area.width;
	}
	XFree(get_pe_area);
	pe_attr = XVaCreateNestedList(0, XNArea, &pe_area, NULL);
	XSetICValues(p->xic, XNPreeditAttributes, pe_attr, NULL);
	XFree(pe_attr);
    }
    return(TRUE);
}

static void ResizeVendorShell(vw, ve)
    VendorShellWidget vw;
    XawVendorShellExtPart * ve;
{
    XawIcTableList               p;

    if (IsSharedIC(ve)) {
	p = ve->ic.shared_ic_table;
	if (p->xic == NULL) return;
	ResizeVendorShell_Core(vw, ve, p);
	return;
    }
    for (p = ve->ic.ic_table; p; p = p->next) {
	if (p->xic == NULL) continue;
	if (ResizeVendorShell_Core(vw, ve, p) == FALSE) return;
    }
}

static XawIcTableList CreateIcTable( w, ve )
    Widget w;
    XawVendorShellExtPart * ve;
{
    XawIcTableList	table;

    table = (XawIcTableList) XtMalloc(sizeof(XawIcTablePart));
    if (table == NULL) return(NULL);
    table->widget = w;
    table->xic = NULL;
    table->flg = table->prev_flg = 0;
    table->font_set = NULL;
    table->foreground = table->background = 0xffffffff;
    table->bg_pixmap = 0;
    table->cursor_position = 0xffff;
    table->line_spacing = 0;
    table->ic_focused = FALSE;
    table->openic_error = FALSE;
    return(table);
}

static Boolean RegisterToVendorShell( w, ve )
    Widget w; 
    XawVendorShellExtPart * ve;
{
    XawIcTableList	table;

    if ((table = CreateIcTable(w, ve)) == NULL) return(FALSE);
    table->next = ve->ic.ic_table;
    ve->ic.ic_table = table;
    return(TRUE);
}

static void UnregisterFromVendorShell(w, ve)
    Widget w;
    XawVendorShellExtPart * ve;
{
    XawIcTableList	*prev, p;

    for (prev = &ve->ic.ic_table; (p = *prev) != NULL; prev = &p->next) {
	if (p->widget == w) {
	    *prev = p->next;
	    XtFree((char *)p);
	    break;
	}
    }
    return;
}

static void SetICValuesShared(w, ve, p, check)
    Widget w;
    XawVendorShellExtPart * ve;
    XawIcTableList	p;
    Boolean     check;
{
    XawIcTableList	pp;

    if ((pp = GetIcTable(w, ve)) == NULL) return;
    if (check == TRUE && CurrentSharedIcTable(ve) != pp) return;

    if (pp->prev_flg & CICursorP && p->cursor_position != pp->cursor_position) {
	p->cursor_position = pp->cursor_position;
	p->flg |= CICursorP;
    }
    if (pp->prev_flg & CIFontSet && p->font_set != pp->font_set) {
	p->font_set = pp->font_set;
	p->flg |= (CIFontSet|CICursorP);
    }
    if (pp->prev_flg & CIFg && p->foreground != pp->foreground) {
	p->foreground = pp->foreground;
	p->flg |= CIFg;
    }
    if (pp->prev_flg & CIBg && p->background != pp->background) {
	p->background = pp->background;
	p->flg |= CIBg;
    }
    if (pp->prev_flg & CIBgPixmap && p->bg_pixmap != pp->bg_pixmap) {
	p->bg_pixmap = pp->bg_pixmap;
	p->flg |= CIBgPixmap;
    }
    if (pp->prev_flg & CILineS && p->line_spacing != pp->line_spacing) {
	p->line_spacing = pp->line_spacing;
	p->flg |= CILineS;
    }
}

static Boolean IsCreatedIC(w, ve)
    Widget w;
    XawVendorShellExtPart * ve;
{
    XawIcTableList	p;

    if (ve->im.xim == NULL) return(FALSE);
    if ((p = GetIcTableShared(w, ve)) == NULL) return(FALSE);
    if (p->xic == NULL) return(FALSE);
    return(TRUE);
}

static void SizeNegotiation(p, width, height)
    XawIcTableList	p;
    Dimension		width, height;
{
    XRectangle		pe_area, st_area;
    XVaNestedList	pe_attr = NULL, st_attr = NULL;
    int			ic_cnt = 0, pe_cnt = 0, st_cnt = 0;
    XRectangle		*pe_area_needed = NULL, *st_area_needed = NULL;
    XPointer		ic_a[5];

    if (p->input_style & XIMPreeditArea) {
	pe_attr = XVaCreateNestedList(0, XNAreaNeeded, &pe_area_needed, NULL);
	SetVaArg( &ic_a[ic_cnt], (XPointer) XNPreeditAttributes); ic_cnt++;
	SetVaArg( &ic_a[ic_cnt], (XPointer) pe_attr); ic_cnt++;
    }
    if (p->input_style & XIMStatusArea) {
	st_attr = XVaCreateNestedList(0, XNAreaNeeded, &st_area_needed, NULL);
	SetVaArg( &ic_a[ic_cnt], (XPointer) XNStatusAttributes); ic_cnt++;
	SetVaArg( &ic_a[ic_cnt], (XPointer) st_attr); ic_cnt++;
    }
    SetVaArg( &ic_a[ic_cnt], (XPointer) NULL);

    if (ic_cnt > 0) {
	XGetICValues(p->xic, ic_a[0], ic_a[1], ic_a[2], ic_a[3], ic_a[4]);
	if (pe_attr) XFree(pe_attr);
	if (st_attr) XFree(st_attr);
	if (p->xic == NULL) {
	    p->openic_error = True;
	    return;
	}
	pe_attr = st_attr = NULL;
	ic_cnt = pe_cnt = st_cnt = 0;
	if (p->input_style & XIMStatusArea) {
	    st_area.height = st_area_needed->height;
	    st_area.x = 0;
	    st_area.y = height - st_area.height;
	    if (p->input_style & XIMPreeditArea) {
		st_area.width = st_area_needed->width;
	    } else {
		st_area.width = width;
	    }

	    XFree(st_area_needed);
	    st_attr = XVaCreateNestedList(0, XNArea, &st_area, NULL);
	    SetVaArg( &ic_a[ic_cnt], (XPointer) XNStatusAttributes); ic_cnt++;
	    SetVaArg( &ic_a[ic_cnt], (XPointer) st_attr); ic_cnt++;
	}
	if (p->input_style & XIMPreeditArea) {
	    if (p->input_style & XIMStatusArea) {
		pe_area.x = st_area.width;
		pe_area.width = width - st_area.width;
	    } else {
		pe_area.x = 0;
		pe_area.width = width;
	    }
	    pe_area.height = pe_area_needed->height;
	    XFree(pe_area_needed);
	    pe_area.y = height - pe_area.height;
	    pe_attr = XVaCreateNestedList(0, XNArea, &pe_area, NULL);
	    SetVaArg( &ic_a[ic_cnt], (XPointer) XNPreeditAttributes); ic_cnt++;
	    SetVaArg( &ic_a[ic_cnt], (XPointer) pe_attr); ic_cnt++;
	}
	SetVaArg( &ic_a[ic_cnt], (XPointer) NULL);
	XSetICValues(p->xic, ic_a[0], ic_a[1], ic_a[2], ic_a[3], ic_a[4]);
	if (pe_attr) XFree(pe_attr);
	if (st_attr) XFree(st_attr);
	if (p->xic == NULL) {
	    p->openic_error = True;
	    return;
	}
    }
}

static void CreateIC( w, ve )
    Widget w;
    XawVendorShellExtPart* ve;
{
    XawIcTableList	p;
    XPoint		position;
    XRectangle		pe_area, st_area;
    XVaNestedList	pe_attr = NULL, st_attr = NULL;
    XPointer		ic_a[20], pe_a[20], st_a[20];
    Dimension		height = 0;
    int			ic_cnt = 0, pe_cnt = 0, st_cnt = 0;
    XawTextMargin	*margin;

    if (!XtIsRealized(w)) return;
    if (((ve->im.xim == NULL) || (p = GetIcTableShared(w, ve)) == NULL) ||
	p->xic || (p->openic_error != FALSE)) return;

    p->input_style = GetInputStyleOfIC(ve);

    if (IsSharedIC(ve)) SetICValuesShared(w, ve, p, FALSE);
    XFlush(XtDisplay(w));
    
    if (p->input_style & (XIMPreeditArea|XIMPreeditPosition|XIMStatusArea)) {
	if (p->flg & CIFontSet) {
	    SetVaArg( &pe_a[pe_cnt], (XPointer) XNFontSet); pe_cnt++;
	    SetVaArg( &pe_a[pe_cnt], (XPointer) p->font_set); pe_cnt++;
	    SetVaArg( &st_a[st_cnt], (XPointer) XNFontSet); st_cnt++;
	    SetVaArg( &st_a[st_cnt], (XPointer) p->font_set); st_cnt++;
	    height = maxAscentOfFontSet(p->font_set)
		   + maxDescentOfFontSet(p->font_set);
	    height = SetVendorShellHeight(ve, height);
	}
	if (p->flg & CIFg) {
	    SetVaArg( &pe_a[pe_cnt], (XPointer) XNForeground); pe_cnt++;
	    SetVaArg( &pe_a[pe_cnt], (XPointer) p->foreground); pe_cnt++;
	    SetVaArg( &st_a[st_cnt], (XPointer) XNForeground); st_cnt++;
	    SetVaArg( &st_a[st_cnt], (XPointer) p->foreground); st_cnt++;
	}
	if (p->flg & CIBg) {
	    SetVaArg( &pe_a[pe_cnt], (XPointer) XNBackground); pe_cnt++;
	    SetVaArg( &pe_a[pe_cnt], (XPointer) p->background); pe_cnt++;
	    SetVaArg( &st_a[st_cnt], (XPointer) XNBackground); st_cnt++;
	    SetVaArg( &st_a[st_cnt], (XPointer) p->background); st_cnt++;
	}
	if (p->flg & CIBgPixmap) {
	    SetVaArg( &pe_a[pe_cnt], (XPointer) XNBackgroundPixmap); pe_cnt++;
	    SetVaArg( &pe_a[pe_cnt], (XPointer) p->bg_pixmap); pe_cnt++;
	    SetVaArg( &st_a[st_cnt], (XPointer) XNBackgroundPixmap); st_cnt++;
	    SetVaArg( &st_a[st_cnt], (XPointer) p->bg_pixmap); st_cnt++;
	}
	if (p->flg & CILineS) {
	    SetVaArg( &pe_a[pe_cnt], (XPointer) XNLineSpace); pe_cnt++;
	    SetVaArg( &pe_a[pe_cnt], (XPointer) p->line_spacing); pe_cnt++;
	    SetVaArg( &st_a[st_cnt], (XPointer) XNLineSpace); st_cnt++;
	    SetVaArg( &st_a[st_cnt], (XPointer) p->line_spacing); st_cnt++;
	}
    }
    if (p->input_style & XIMPreeditArea) {
	pe_area.x = 0;
	pe_area.y = ve->parent->core.height - height;
	pe_area.width = ve->parent->core.width;
	pe_area.height = height;
	SetVaArg( &pe_a[pe_cnt], (XPointer) XNArea); pe_cnt++;
	SetVaArg( &pe_a[pe_cnt], (XPointer) &pe_area); pe_cnt++;
    }
    if (p->input_style & XIMPreeditPosition) {
	pe_area.x = 0;
	pe_area.y = 0;
	pe_area.width = w->core.width;
	pe_area.height = w->core.height;
	margin = &(((TextWidget)w)->text.margin);
	pe_area.x += margin->left;
	pe_area.y += margin->top;
	pe_area.width -= (margin->left + margin->right - 1);
	pe_area.height -= (margin->top + margin->bottom - 1);
	SetVaArg( &pe_a[pe_cnt], (XPointer) XNArea); pe_cnt++;
	SetVaArg( &pe_a[pe_cnt], (XPointer) &pe_area); pe_cnt++;
	if (p->flg & CICursorP) {
	    _XawMultiSinkPosToXY(w, p->cursor_position, &position.x, &position.y);
	} else {
	    position.x = position.y = 0;
	}
	SetVaArg( &pe_a[pe_cnt], (XPointer) XNSpotLocation); pe_cnt++;
	SetVaArg( &pe_a[pe_cnt], (XPointer) &position); pe_cnt++;
    }
    if (p->input_style & XIMStatusArea) {
	st_area.x = 0;
	st_area.y = ve->parent->core.height - height;
	st_area.width = ve->parent->core.width;
	st_area.height = height;
	SetVaArg( &st_a[st_cnt], (XPointer) XNArea); st_cnt++;
	SetVaArg( &st_a[st_cnt], (XPointer) &st_area); st_cnt++;
    }

    SetVaArg( &ic_a[ic_cnt], (XPointer) XNInputStyle); ic_cnt++;
    SetVaArg( &ic_a[ic_cnt], (XPointer) p->input_style); ic_cnt++;
    SetVaArg( &ic_a[ic_cnt], (XPointer) XNClientWindow); ic_cnt++;
    SetVaArg( &ic_a[ic_cnt], (XPointer) XtWindow(ve->parent)); ic_cnt++;
    SetVaArg( &ic_a[ic_cnt], (XPointer) XNFocusWindow); ic_cnt++;
    SetVaArg( &ic_a[ic_cnt], (XPointer) XtWindow(w)); ic_cnt++;

    if (pe_cnt > 0) {
	SetVaArg( &pe_a[pe_cnt], (XPointer) NULL);
	pe_attr = XVaCreateNestedList(0, pe_a[0], pe_a[1], pe_a[2], pe_a[3],
				   pe_a[4], pe_a[5], pe_a[6], pe_a[7], pe_a[8],
				   pe_a[9], pe_a[10], pe_a[11], pe_a[12],
				   pe_a[13], pe_a[14], pe_a[15], pe_a[16],
				   pe_a[17], pe_a[18],  pe_a[19]);
	SetVaArg( &ic_a[ic_cnt], (XPointer) XNPreeditAttributes); ic_cnt++;
	SetVaArg( &ic_a[ic_cnt], (XPointer) pe_attr); ic_cnt++;
    }

    if (st_cnt > 0) {
	SetVaArg( &st_a[st_cnt], (XPointer) NULL);
	st_attr = XVaCreateNestedList(0, st_a[0], st_a[1], st_a[2], st_a[3],
				   st_a[4], st_a[5], st_a[6], st_a[7], st_a[8],
				   st_a[9], st_a[10], st_a[11], st_a[12],
				   st_a[13], st_a[14], st_a[15], st_a[16],
				   st_a[17], st_a[18],  st_a[19]);
	SetVaArg( &ic_a[ic_cnt], (XPointer) XNStatusAttributes); ic_cnt++;
	SetVaArg( &ic_a[ic_cnt], (XPointer) st_attr); ic_cnt++;
    }
    SetVaArg( &ic_a[ic_cnt], (XPointer) NULL);

    p->xic = XCreateIC(ve->im.xim, ic_a[0], ic_a[1], ic_a[2], ic_a[3],
		       ic_a[4], ic_a[5], ic_a[6], ic_a[7], ic_a[8], ic_a[9],
		       ic_a[10], ic_a[11], ic_a[12], ic_a[13], ic_a[14],
		       ic_a[15], ic_a[16], ic_a[17], ic_a[18], ic_a[19]);
    if (pe_attr) XtFree(pe_attr);
    if (st_attr) XtFree(st_attr);

    if (p->xic == NULL) {
	p->openic_error = True;
	return;
    }

    SizeNegotiation(p, ve->parent->core.width, ve->parent->core.height);

    p->flg &= ~(CIFontSet | CIFg | CIBg | CIBgPixmap | CICursorP | CILineS);

    if (!IsSharedIC(ve)) {
	if (p->input_style & XIMPreeditPosition) {
	    XtAddEventHandler(w, (EventMask)StructureNotifyMask, FALSE,
			      (XtEventHandler)ConfigureCB, (Opaque)NULL);
	}
    }
}

static void SetICValues( w, ve, focus )
    Widget	w;
    XawVendorShellExtPart	*ve;
    Boolean	focus;
{
    XawIcTableList	p;
    XPoint		position;
    XRectangle		pe_area;
    XVaNestedList	pe_attr = NULL, st_attr = NULL;
    XPointer		ic_a[20], pe_a[20], st_a[20];
    int			ic_cnt = 0, pe_cnt = 0, st_cnt = 0;
    XawTextMargin	*margin;
    int			height;

    if ((ve->im.xim == NULL) || ((p = GetIcTableShared(w, ve)) == NULL) ||
	(p->xic == NULL)) return;

    if (IsSharedIC(ve)) SetICValuesShared(w, ve, p, TRUE);
    XFlush(XtDisplay(w));
    if (focus == FALSE &&
	!(p->flg & (CIFontSet | CIFg | CIBg |
		    CIBgPixmap | CICursorP | CILineS))) return;
#ifdef SPOT
    if ((p->input_style & XIMPreeditPosition)
	&& ((!IsSharedIC(ve) && ((p->flg & ~CIICFocus) == CICursorP))
	    || (IsSharedIC(ve) && p->flg == CICursorP))) {
	_XawMultiSinkPosToXY(w, p->cursor_position, &position.x, &position.y);
	_XipChangeSpot(p->xic, position.x, position.y);
	p->flg &= ~CICursorP;
	return;
    }
#endif

    if (p->input_style & (XIMPreeditArea|XIMPreeditPosition|XIMStatusArea)) {
	if (p->flg & CIFontSet) {
	    SetVaArg( &pe_a[pe_cnt], (XPointer) XNFontSet); pe_cnt++;
	    SetVaArg( &pe_a[pe_cnt], (XPointer) p->font_set); pe_cnt++;
	    SetVaArg( &st_a[st_cnt], (XPointer) XNFontSet); st_cnt++;
	    SetVaArg( &st_a[st_cnt], (XPointer) p->font_set); st_cnt++;
	    height = maxAscentOfFontSet(p->font_set)
		   + maxDescentOfFontSet(p->font_set);
	    height = SetVendorShellHeight(ve, height);
	}
	if (p->flg & CIFg) {
	    SetVaArg( &pe_a[pe_cnt], (XPointer) XNForeground); pe_cnt++;
	    SetVaArg( &pe_a[pe_cnt], (XPointer) p->foreground); pe_cnt++;
	    SetVaArg( &st_a[st_cnt], (XPointer) XNForeground); st_cnt++;
	    SetVaArg( &st_a[st_cnt], (XPointer) p->foreground); st_cnt++;
	}
	if (p->flg & CIBg) {
	    SetVaArg( &pe_a[pe_cnt], (XPointer) XNBackground); pe_cnt++;
	    SetVaArg( &pe_a[pe_cnt], (XPointer) p->background); pe_cnt++;
	    SetVaArg( &st_a[st_cnt], (XPointer) XNBackground); st_cnt++;
	    SetVaArg( &st_a[st_cnt], (XPointer) p->background); st_cnt++;
	}
	if (p->flg & CIBgPixmap) {
	    SetVaArg( &pe_a[pe_cnt], (XPointer) XNBackgroundPixmap); pe_cnt++;
	    SetVaArg( &pe_a[pe_cnt], (XPointer) p->bg_pixmap); pe_cnt++;
	    SetVaArg( &st_a[st_cnt], (XPointer) XNBackgroundPixmap); st_cnt++;
	    SetVaArg( &st_a[st_cnt], (XPointer) p->bg_pixmap); st_cnt++;
	}
	if (p->flg & CILineS) {
	    SetVaArg( &pe_a[pe_cnt], (XPointer) XNLineSpace); pe_cnt++;
	    SetVaArg( &pe_a[pe_cnt], (XPointer) p->line_spacing); pe_cnt++;
	    SetVaArg( &st_a[st_cnt], (XPointer) XNLineSpace); st_cnt++;
	    SetVaArg( &st_a[st_cnt], (XPointer) p->line_spacing); st_cnt++;
	}
    }
    if (p->input_style & XIMPreeditPosition) {
	if (p->flg & CICursorP) {
	    _XawMultiSinkPosToXY(w, p->cursor_position, &position.x, &position.y);
	    SetVaArg( &pe_a[pe_cnt], (XPointer) XNSpotLocation); pe_cnt++;
	    SetVaArg( &pe_a[pe_cnt], (XPointer) &position); pe_cnt++;
	}
    }
    if (IsSharedIC(ve)) {
	if (p->input_style & XIMPreeditPosition) {
	    pe_area.x = 0;
	    pe_area.y = 0;
	    pe_area.width = w->core.width;
	    pe_area.height = w->core.height;
	    margin = &(((TextWidget)w)->text.margin);
	    pe_area.x += margin->left;
	    pe_area.y += margin->top;
	    pe_area.width -= (margin->left + margin->right - 1);
	    pe_area.height -= (margin->top + margin->bottom - 1);
	    SetVaArg( &pe_a[pe_cnt], (XPointer) XNArea); pe_cnt++;
	    SetVaArg( &pe_a[pe_cnt], (XPointer) &pe_area); pe_cnt++;
	}
    }

    if (pe_cnt > 0) {
	SetVaArg( &pe_a[pe_cnt], (XPointer) NULL);
	pe_attr = XVaCreateNestedList(0, pe_a[0], pe_a[1], pe_a[2], pe_a[3],
				      pe_a[4], pe_a[5], pe_a[6], pe_a[7],
				      pe_a[8], pe_a[9], pe_a[10], pe_a[11],
				      pe_a[12], pe_a[13], pe_a[14], pe_a[15],
				      pe_a[16], pe_a[17], pe_a[18],  pe_a[19]);
	SetVaArg( &ic_a[ic_cnt], (XPointer) XNPreeditAttributes); ic_cnt++;
	SetVaArg( &ic_a[ic_cnt], (XPointer) pe_attr); ic_cnt++;
    }
    if (st_cnt > 0) {
	SetVaArg( &st_a[st_cnt], (XPointer) NULL);
	st_attr = XVaCreateNestedList(0, st_a[0], st_a[1], st_a[2], st_a[3],
				      st_a[4], st_a[5], st_a[6], st_a[7],
				      st_a[8], st_a[9], st_a[10], st_a[11],
				      st_a[12], st_a[13], st_a[14], st_a[15],
				      st_a[16], st_a[17], st_a[18],  st_a[19]);
	SetVaArg( &ic_a[ic_cnt], (XPointer) XNStatusAttributes); ic_cnt++;
	SetVaArg( &ic_a[ic_cnt], (XPointer) st_attr); ic_cnt++;
    }
    if (focus == TRUE) {
	SetVaArg( &ic_a[ic_cnt], (XPointer) XNFocusWindow); ic_cnt++;
	SetVaArg( &ic_a[ic_cnt], (XPointer) XtWindow(w)); ic_cnt++;
    }
    if (ic_cnt > 0) {
	SetVaArg( &ic_a[ic_cnt], (XPointer) NULL);
	XSetICValues(p->xic, ic_a[0], ic_a[1], ic_a[2], ic_a[3], ic_a[4],
		     ic_a[5], ic_a[6], ic_a[7], ic_a[8], ic_a[9], ic_a[10],
		     ic_a[11], ic_a[12], ic_a[13], ic_a[14], ic_a[15],
		     ic_a[16], ic_a[17], ic_a[18], ic_a[19]);
	if (pe_attr) XtFree(pe_attr);
	if (st_attr) XtFree(st_attr);
    }

    if (IsSharedIC(ve) && p->flg & CIFontSet)
	SizeNegotiation(p, ve->parent->core.width, ve->parent->core.height);

    p->flg &= ~(CIFontSet | CIFg | CIBg | CIBgPixmap | CICursorP | CILineS);
}

static void SharedICChangeFocusWindow(w, ve, p)
    Widget		w;
    XawVendorShellExtPart	*ve;
    XawIcTableList	p;
{
    XawIcTableList	pp;

    if (w == NULL) {
	ve->ic.current_ic_table = NULL;
	return;
    }
    if ((pp = GetIcTable(w, ve)) == NULL) return;
    ve->ic.current_ic_table = pp;
    SetICValues(w, ve, TRUE);
}

static XawIcTableList CurrentSharedIcTable( ve )
    XawVendorShellExtPart * ve;
{
    return(ve->ic.current_ic_table);
}

static void SetICFocus(w, ve)
    Widget w;
    XawVendorShellExtPart * ve;
{
    XawIcTableList	p, pp;

    if ((ve->im.xim == NULL) || ((p = GetIcTableShared(w, ve)) == NULL) ||
	(p->xic == NULL)) return;

    if (IsSharedIC(ve)) {
	pp = CurrentSharedIcTable(ve);
	if (pp == NULL || pp->widget != w) {
	    SharedICChangeFocusWindow(w, ve, p);
	}
    }
    if (p->flg & CIICFocus && p->ic_focused == FALSE) {
	p->ic_focused = TRUE;
	XSetICFocus(p->xic);
    }
    p->flg &= ~CIICFocus;
}

static void UnsetICFocus(w, ve)
    Widget w;
    XawVendorShellExtPart * ve;
{
    XawIcTableList	p, pp;

    if ((ve->im.xim == NULL) || ((p = GetIcTableShared(w, ve)) == NULL) ||
	(p->xic == NULL)) return;

    if (IsSharedIC(ve) && (pp = CurrentSharedIcTable(ve))) {
	if (pp->widget != w) {
	    return;
	}
	SharedICChangeFocusWindow(NULL, ve, p);
    }
    if (p->ic_focused == TRUE) {
	XUnsetICFocus(p->xic);
	p->ic_focused = FALSE;
    }
}

static void SetValues( w, ve, args, num_args )
    Widget w;
    XawVendorShellExtPart * ve;
    ArgList args;
    Cardinal num_args;
{
    ArgList	arg;

    XrmName	argName;
    XrmResourceList	xrmres;
    int	i;
    XawIcTablePart	*p, save_tbl;

    if ((p = GetIcTable(w, ve)) == NULL) return;

    memcpy(&save_tbl, p, sizeof(XawIcTablePart));

    for (arg = args ; num_args != 0; num_args--, arg++) {
	argName = XrmStringToName(arg->name);
	for (xrmres = (XrmResourceList)ve->im.resources, i = 0;
	     i < ve->im.num_resources; i++, xrmres++) {
            if (argName == xrmres->xrm_name) {
                _XtCopyFromArg(arg->value,
			       (char *)p - xrmres->xrm_offset - 1,
			       xrmres->xrm_size);
                break;
            }
        }
    }
    if (p->font_set != save_tbl.font_set) {
	p->flg |= CIFontSet;
    }
    if (p->foreground != save_tbl.foreground) {
	p->flg |= CIFg;
    }
    if (p->background !=save_tbl.background) {
	p->flg |= CIBg;
    }
    if (p->bg_pixmap != save_tbl.bg_pixmap) {
	p->flg |= CIBgPixmap;
    }
    if (p->cursor_position != save_tbl.cursor_position) {
	p->flg |= CICursorP;
    }
    if (p->line_spacing != save_tbl.line_spacing) {
	p->flg |= CILineS;
    }
    p->prev_flg |= p->flg;
}

static void SetFocus( w, ve )
    Widget w;
    XawVendorShellExtPart *ve;
{
    XawIcTableList	p;
    if ((p = GetIcTableShared(w, ve)) == NULL) return;

    if ( p->ic_focused == FALSE || IsSharedIC(ve)) {
	p->flg |= CIICFocus;
    }
    p->prev_flg |= p->flg;
}

static void DestroyIC(w, ve)
    Widget w;
    XawVendorShellExtPart *ve;
{
    XawIcTableList	p;

    if ((ve->im.xim == NULL) || ((p = GetIcTableShared(w, ve)) == NULL) ||
	(p->xic == NULL)) return;
    if (IsSharedIC(ve)) {
	if (GetIcTable(w, ve) == ve->ic.current_ic_table) {
	    UnsetICFocus(w, ve);
	}
        return;
    }
    XDestroyIC(p->xic);
    if (!IsSharedIC(ve)) {
	if (p->input_style & XIMPreeditPosition) {
	    XtRemoveEventHandler(w, (EventMask)StructureNotifyMask, FALSE,
				 (XtEventHandler)ConfigureCB, (Opaque)NULL);
	}
    }
}

static void SetFocusValues( inwidg, args, num_args, focus )
    Widget	inwidg;
    ArgList	args;
    Cardinal	num_args;
    Boolean	focus;
{
    XawVendorShellExtPart	*ve;
    VendorShellWidget		vw;

    if ((vw = SearchVendorShell(inwidg)) == NULL) return;
    if ((ve = GetExtPart(vw)) != NULL) {
	if (num_args > 0) SetValues(inwidg, ve, args, num_args);
	if (focus) SetFocus(inwidg, ve);
	if (XtIsRealized((Widget)vw) && ve->im.xim) {
	    if (IsCreatedIC(inwidg, ve)) {
		SetICValues(inwidg, ve, FALSE);
		if (focus) SetICFocus(inwidg, ve);
	    } else {
		CreateIC(inwidg, ve);
	    	SetICFocus(inwidg, ve);
	    }
	}
    }
}

static void UnsetFocus( inwidg )
    Widget inwidg;
{
    XawVendorShellExtPart	*ve;
    VendorShellWidget		vw;
    XawIcTableList		p;

    if ((vw = SearchVendorShell(inwidg)) == NULL) return;
    if ((ve = GetExtPart(vw)) != NULL) {
	if ((p = GetIcTableShared(inwidg, ve)) == NULL) return;
	if (p->flg & CIICFocus) {
	    p->flg &= ~CIICFocus;
	}
	p->prev_flg &= ~CIICFocus;
	if (ve->im.xim && XtIsRealized((Widget)vw) && p->xic) {
	    UnsetICFocus(inwidg, ve);
	}
    }
}

static Boolean IsRegistered( w, ve )
    Widget w;
    XawVendorShellExtPart* ve;
{
    XawIcTableList	p;

    for (p = ve->ic.ic_table; p; p = p->next)
	{
	    if (p->widget == w) return(TRUE);
	}
    return(FALSE);
}

static void Register(inwidg, ve)
    Widget inwidg;
    XawVendorShellExtPart* ve;
{
    if (ve->im.xim == NULL)
	{
	    OpenIM(ve);
	}

    if (IsRegistered(inwidg, ve)) return;

    if (RegisterToVendorShell(inwidg, ve) == FALSE) return;

    if (ve->im.xim == NULL) return;

    if (XtIsRealized(ve->parent))
	{
	    CreateIC(inwidg, ve);
	    SetICFocus(inwidg, ve);
	}
}

static Boolean NoRegistered(ve)
     XawVendorShellExtPart* ve;
{
    if (ve->ic.ic_table == NULL) return(TRUE);
    return(FALSE);
}

static void Unregister(inwidg, ve)
    Widget inwidg;
    XawVendorShellExtPart* ve;
{
    if (!IsRegistered(inwidg, ve)) return;

    DestroyIC(inwidg, ve);

    UnregisterFromVendorShell(inwidg, ve);

    if (NoRegistered(ve))
	{
	    CloseIM(ve);
	    ve->im.xim = NULL;
	    /*
	     * resize vendor shell to core size
	    */
	    (void) SetVendorShellHeight(ve, 0);
	}
}

static void AllCreateIC( ve )
    XawVendorShellExtPart* ve;
{
    XawIcTableList p;

    if (ve->im.xim == NULL) return;
    if (IsSharedIC(ve) && ve->ic.ic_table[0].widget) {
	p = ve->ic.shared_ic_table;
	if (p->xic == NULL)
	    CreateIC(ve->ic.ic_table[0].widget, ve);
	SetICFocus(ve->ic.ic_table[0].widget, ve);
	return;
    }
    for (p = ve->ic.ic_table; p; p = p->next) {
	if (p->xic == NULL)
	    CreateIC(p->widget, ve);
    }
    for (p = ve->ic.ic_table; p; p = p->next) {
	SetICFocus(p->widget, ve);
    }
}


static void Reconnect(ve)
    XawVendorShellExtPart* ve;
{
    XawIcTableList	p;

    ve->im.open_im = True;
    if (ve->im.xim == NULL) {
	OpenIM(ve);
    }
    if (ve->im.xim == NULL) return;

    if (IsSharedIC(ve)) {
	p = ve->ic.shared_ic_table;
	p->flg = p->prev_flg;
	p->openic_error = FALSE;
    } else {
	for (p = ve->ic.ic_table; p; p = p->next) {
	    p->flg = p->prev_flg;
	    p->openic_error = FALSE;
	}
    }
    AllCreateIC(ve);
}


static void CompileResourceList( res, num_res )
    XtResourceList res;
    unsigned int num_res;
{
    unsigned int count;

#define xrmres	((XrmResourceList) res)
    for (count = 0; count < num_res; res++, count++) {
	xrmres->xrm_name         = XrmPermStringToQuark(res->resource_name);
	xrmres->xrm_class        = XrmPermStringToQuark(res->resource_class);
	xrmres->xrm_type         = XrmPermStringToQuark(res->resource_type);
	xrmres->xrm_offset	= -res->resource_offset - 1;
	xrmres->xrm_default_type = XrmPermStringToQuark(res->default_type);
    }
#undef xrmres
}

static Boolean Initialize( vw, ve )
    VendorShellWidget vw;
    XawVendorShellExtPart* ve;
{
    if (!XtIsVendorShell((Widget)vw)) return(FALSE);
    ve->parent = (Widget)vw;
    ve->im.xim = NULL;
    ve->im.area_height = 0;
    ve->im.resources = (XrmResourceList)XtMalloc(sizeof(resources));
    if (ve->im.resources == NULL) return(FALSE);
    memcpy((char *)ve->im.resources, (char *)resources, sizeof(resources));
    ve->im.num_resources = XtNumber(resources);
    CompileResourceList( (XtResourceList) ve->im.resources,
			   ve->im.num_resources );
    if ((ve->ic.shared_ic_table = CreateIcTable( (Widget)vw, ve)) == NULL)
	return(FALSE);
    ve->ic.current_ic_table = NULL;
    ve->ic.ic_table = NULL;
    return(TRUE);
}


/* Destroy()
 *
 * This frees all (most?) of the resources malloced by XawIm.
 * It is called by _XawImDestroy, which is called by Vendor.c's
 * VendorExt's Destroy method.           Sheeran, Omron KK, 93/08/05 */

static void Destroy( w, ve )
    Widget w;
    XawVendorShellExtPart* ve;
{
    contextDataRec *contextData;
    contextErrDataRec *contextErrData;

    if (!XtIsVendorShell( w ) )
	return;
    XtFree( (char*) ve->im.resources );

    if (extContext != (XContext)NULL && 
	!XFindContext (XtDisplay (w), (Window)w, 
		       extContext, (XPointer*)&contextData))
        XtFree( (char*) contextData );

    if (errContext != (XContext)NULL && 
	!XFindContext (XDisplayOfIM( ve->im.xim ), (Window) ve->im.xim, 
		       errContext, (XPointer*) &contextErrData))
        XtFree( (char*) contextErrData );
}

/*********************************************
 *
 * SEMI-PRIVATE FUNCTIONS
 * For use by other Xaw modules
 *
 ********************************************/

void
#if NeedFunctionPrototypes
_XawImResizeVendorShell( 
    Widget w )
#else
_XawImResizeVendorShell( w )
    Widget w;
#endif
{
    XawVendorShellExtPart *ve;

    if ( ( ve = GetExtPart( (VendorShellWidget) w ) ) && ve->im.xim ) {
	ResizeVendorShell( (VendorShellWidget) w, ve );
    }
}


Dimension
#if NeedFunctionPrototypes
_XawImGetShellHeight( 
    Widget w )
#else
_XawImGetShellHeight( w )
    Widget	w;
#endif
{
    XawVendorShellExtPart *ve;

    if (!XtIsVendorShell(w)) return( w->core.height );
    if ((ve = GetExtPart((VendorShellWidget)w)) != NULL)
	return( w->core.height - ve->im.area_height );

    return( w->core.height );
}

void
#if NeedFunctionPrototypes
_XawImRealize( 
    Widget w )
#else
_XawImRealize( w )
    Widget w;
#endif
{
    XawVendorShellExtPart	*ve;
    extern void XawVendorShellExtResize();

    if ( !XtIsRealized( w ) || !XtIsVendorShell( w ) ) return;
    if ((ve = GetExtPart((VendorShellWidget)w)) != NULL) {
	XtAddEventHandler( w, (EventMask)StructureNotifyMask, FALSE,
			  XawVendorShellExtResize, (XtPointer)NULL );
	AllCreateIC(ve);
    }
}

void
#if NeedFunctionPrototypes
_XawImInitialize( 
    Widget w, 
    Widget ext )
#else
_XawImInitialize( w, ext )
    Widget w, ext;
#endif
{
    XawVendorShellExtPart	*ve;

    if ( !XtIsVendorShell( w ) ) return;
    if ((ve = SetExtPart((VendorShellWidget) w, (XawVendorShellExtWidget)ext)) != NULL) {
	if ( Initialize( (VendorShellWidget) w, ve ) == FALSE ) return;
	XtAddCallback( w, XtNdestroyCallback, VendorShellDestroyed,
		      (XtPointer) NULL );
    }
}

void
#if NeedFunctionPrototypes
_XawImReconnect( 
    Widget inwidg )
#else
_XawImReconnect( inwidg )
    Widget	inwidg;
#endif
{
    XawVendorShellExtPart	*ve;
    VendorShellWidget		vw;

    if ((vw = SearchVendorShell(inwidg)) == NULL) return;
    if ((ve = GetExtPart(vw)) != NULL) {
	Reconnect(ve);
    }
}

void
#if NeedFunctionPrototypes
_XawImRegister(
    Widget inwidg)
#else
_XawImRegister(inwidg)
    Widget	inwidg;
#endif
{
    XawVendorShellExtPart	*ve;
    VendorShellWidget		vw;

    if ((vw = SearchVendorShell(inwidg)) == NULL) return;
    if ((ve = GetExtPart(vw)) != NULL) {
	Register(inwidg, ve);
    }
}

void
#if NeedFunctionPrototypes
_XawImUnregister(
    Widget inwidg)
#else
_XawImUnregister(inwidg)
    Widget	inwidg;
#endif
{
    XawVendorShellExtPart	*ve;
    VendorShellWidget		vw;

    if ((vw = SearchVendorShell(inwidg)) == NULL) return;
    if ((ve = GetExtPart(vw)) != NULL) {
	Unregister(inwidg, ve);
    }
}

void
#if NeedFunctionPrototypes
_XawImSetValues( 
    Widget inwidg, 
    ArgList args, 
    Cardinal num_args )
#else
_XawImSetValues( inwidg, args, num_args )
    Widget	inwidg;
    ArgList	args;
    Cardinal	num_args;
#endif
{
    SetFocusValues( inwidg, args, num_args, FALSE );
}

void
#if NeedFunctionPrototypes
_XawImSetFocusValues(
    Widget inwidg, 
    ArgList args, 
    Cardinal num_args)
#else
_XawImSetFocusValues(inwidg, args, num_args)
    Widget	inwidg;
    ArgList	args;
    Cardinal	num_args;
#endif
{
    SetFocusValues(inwidg, args, num_args, TRUE);
}

void
#if NeedFunctionPrototypes
_XawImUnsetFocus(
    Widget inwidg)
#else
_XawImUnsetFocus(inwidg)
    Widget	inwidg;
#endif
{
    UnsetFocus(inwidg);
}

int
#if NeedFunctionPrototypes
_XawImWcLookupString( 
    Widget inwidg, 
    XKeyPressedEvent *event,
    wchar_t* buffer_return, 
    int bytes_buffer,
    KeySym *keysym_return, 
    Status *status_return)
#else
_XawImWcLookupString( inwidg, event, buffer_return, bytes_buffer,
		       keysym_return, status_return)
    Widget	inwidg;
    XKeyPressedEvent*	event;
    wchar_t*	buffer_return;
    int		bytes_buffer;
    KeySym*	keysym_return;
    Status*	status_return;
#endif
{
    XawVendorShellExtPart*	ve;
    VendorShellWidget		vw;
    XawIcTableList		p;
    int				i, ret;
    char			tmp_buf[64], *tmp_p;
    wchar_t*			buf_p;

    if ((vw = SearchVendorShell(inwidg)) && (ve = GetExtPart(vw)) &&
	ve->im.xim && (p = GetIcTableShared(inwidg, ve)) && p->xic) {
	  return(XwcLookupString(p->xic, event, buffer_return, bytes_buffer,
				 keysym_return, status_return));
    }
    ret = XLookupString( event, tmp_buf, 64, keysym_return,
		         (XComposeStatus*) status_return );
    for ( i = 0, tmp_p = tmp_buf, buf_p = buffer_return; i < ret; i++ ) {
	*buf_p++ = _Xaw_atowc(*tmp_p++);
    }
    return( ret );
}

int
#if NeedFunctionPrototypes
_XawImGetImAreaHeight(
    Widget w)
#else
_XawImGetImAreaHeight( w )
    Widget w;
#endif
{
    XawVendorShellExtPart	*ve;
    VendorShellWidget		vw;

    if ((vw = SearchVendorShell(w)) && (ve = GetExtPart(vw))) {
	return(ve->im.area_height);
    }
    return(0);
}

void
#if NeedFunctionPrototypes
_XawImCallVendorShellExtResize(
    Widget w)
#else
_XawImCallVendorShellExtResize( w )
    Widget w;
#endif
{
    XawVendorShellExtPart	*ve;
    VendorShellWidget		vw;
    extern void XawVendorShellExtResize();

    if ((vw = SearchVendorShell(w)) && (ve = GetExtPart(vw))) {
	XawVendorShellExtResize(vw);
    }
}


/* _XawImDestroy()
 *
 * This should be called by the VendorExt from its
 * core Destroy method.  Sheeran, Omron KK 93/08/05 */

void
#if NeedFunctionPrototypes
_XawImDestroy( 
    Widget w, 
    Widget ext )
#else
_XawImDestroy( w, ext )
    Widget w;
    Widget ext;
#endif
{
    XawVendorShellExtPart        *ve;

    if ( !XtIsVendorShell( w ) ) return;
    if ((ve = GetExtPart((VendorShellWidget)w)) != NULL)
        Destroy( w, ve );
}
