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gtk/gdk/gdkim.c
CST 1999 Shawn T. Amundson 279e878bdd Added notice to look in AUTHORS and ChangeLog files for a list of changes. 
Wed Feb 24 01:22:39 CST 1999 Shawn T. Amundson <amundson@gtk.org>

        * *.[ch]: Added notice to look in AUTHORS and ChangeLog files
	  for a list of changes.
1999-02-24 07:37:18 +00:00

1588 lines
39 KiB
C
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/* GDK - The GIMP Drawing Kit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* 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 2 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 the GTK+ Team and others 1997-1999. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include <X11/Xlocale.h>
#include "gdk.h"
#include "gdkprivate.h"
#include "gdki18n.h"
#include "gdkx.h"
#if HAVE_CONFIG_H
# include <config.h>
# if STDC_HEADERS
# include <string.h>
# endif
#endif
/* If this variable is FALSE, it indicates that we should
* avoid trying to use multibyte conversion functions and
* assume everything is 1-byte per character
*/
static gboolean gdk_use_mb;
#ifdef USE_XIM
#include <stdarg.h>
#include <X11/Xresource.h>
/* The following routines duplicate functionality in Xlib to
* translate from varargs to X's internal opaque XVaNestedList.
*
* If all vendors have stuck close to the reference implementation,
* then we should hopefully be OK.
*/
typedef struct {
gchar *name;
gpointer value;
} GdkImArg;
#ifdef USE_X11R6_XIM
static void gdk_im_instantiate_cb (Display *display,
XPointer client_data,
XPointer call_data);
#endif
static void gdk_im_destroy_cb (XIM im,
XPointer client_data,
XPointer call_data);
static gint gdk_im_real_open (void);
static void gdk_ic_real_new (GdkIC *ic);
static GdkICAttributesType gdk_ic_real_set_attr (GdkIC *ic,
GdkICAttr *attr,
GdkICAttributesType mask);
static XIM xim_im; /* global IM */
static XIMStyles* xim_styles; /* im supports these styles */
static XIMStyle xim_best_allowed_style;
static GList* xim_ic_list;
#endif /* USE_XIM */
/*
*--------------------------------------------------------------
* gdk_set_locale
*
* Arguments:
*
* Results:
*
* Side effects:
*
*--------------------------------------------------------------
*/
gchar*
gdk_set_locale (void)
{
wchar_t result;
gchar *current_locale;
gdk_use_mb = FALSE;
if (!setlocale (LC_ALL,""))
g_warning ("locale not supported by C library");
if (!XSupportsLocale ())
{
g_warning ("locale not supported by Xlib, locale set to C");
setlocale (LC_ALL, "C");
}
if (!XSetLocaleModifiers (""))
g_warning ("can not set locale modifiers");
current_locale = setlocale (LC_ALL, NULL);
if ((strcmp (current_locale, "C")) && (strcmp (current_locale, "POSIX")))
{
gdk_use_mb = TRUE;
#ifndef X_LOCALE
/* Detect GNU libc, where mb == UTF8. Not useful unless it's
* really a UTF8 locale. The below still probably will
* screw up on Greek, Cyrillic, etc, encoded as UTF8.
*/
if ((MB_CUR_MAX == 2) &&
(mbstowcs (&result, "\xdd\xa5", 1) > 0) &&
result == 0x765)
{
if ((strlen (current_locale) < 4) ||
g_strcasecmp (current_locale + strlen(current_locale) - 4, "utf8"))
gdk_use_mb = FALSE;
}
#endif /* X_LOCALE */
}
GDK_NOTE (XIM,
g_message ("%s multi-byte string functions.",
gdk_use_mb ? "Using" : "Not using"));
return current_locale;
}
#ifdef USE_XIM
/*
*--------------------------------------------------------------
* gdk_im_begin
*
* Begin using input method with XIM Protocol(X11R6 standard)
*
* Arguments:
* "ic" is the "Input Context" which is created by gtk_ic_new.
* The input area is specified with "window".
*
* Results:
* The gdk's event handling routine is switched to XIM based routine.
* XIM based routine uses XFilterEvent to get rid of events used by IM,
* and uses XmbLookupString instead of XLookupString.
*
* Side effects:
*
*--------------------------------------------------------------
*/
void
gdk_im_begin (GdkIC *ic, GdkWindow* window)
{
GdkICPrivate *private;
GdkICAttr attr;
g_return_if_fail (ic != NULL);
private = (GdkICPrivate *) ic;
attr.focus_window = window;
gdk_ic_set_attr (ic, &attr, GDK_IC_FOCUS_WINDOW);
if (private != gdk_xim_ic)
{
gdk_im_end();
if (private->xic)
{
XSetICFocus (private->xic);
GDK_NOTE (XIM, g_message ("im_begin icfocus : %p(%ld)\n",
private->xic,
GDK_WINDOW_XWINDOW(private->attr->focus_window)));
}
}
gdk_xim_ic = private;
gdk_xim_window = window;
}
/*
*--------------------------------------------------------------
* gdk_im_end
*
* End using input method with XIM Protocol(X11R6 standard)
*
* Arguments:
*
* Results:
* The gdk's event handling routine is switched to normal routine.
* User should call this function before ic and window will be destroyed.
*
* Side effects:
*
*--------------------------------------------------------------
*/
void
gdk_im_end (void)
{
if (gdk_xim_ic && gdk_xim_ic->xic)
{
XUnsetICFocus (gdk_xim_ic->xic);
GDK_NOTE (XIM, g_message ("im_end unfocus : %p\n", gdk_xim_ic->xic));
}
gdk_xim_ic = NULL;
gdk_xim_window = NULL;
}
static GdkIMStyle
gdk_im_choose_better_style (GdkIMStyle style1, GdkIMStyle style2)
{
GdkIMStyle s1, s2, u;
if (style1 == 0) return style2;
if (style2 == 0) return style1;
if ((style1 & (GDK_IM_PREEDIT_MASK | GDK_IM_STATUS_MASK))
== (style2 & (GDK_IM_PREEDIT_MASK | GDK_IM_STATUS_MASK)))
return style1;
s1 = style1 & GDK_IM_PREEDIT_MASK;
s2 = style2 & GDK_IM_PREEDIT_MASK;
u = s1 | s2;
if (s1 != s2) {
if (u & GDK_IM_PREEDIT_CALLBACKS)
return (s1 == GDK_IM_PREEDIT_CALLBACKS)? style1:style2;
else if (u & GDK_IM_PREEDIT_POSITION)
return (s1 == GDK_IM_PREEDIT_POSITION)? style1:style2;
else if (u & GDK_IM_PREEDIT_AREA)
return (s1 == GDK_IM_PREEDIT_AREA)? style1:style2;
else if (u & GDK_IM_PREEDIT_NOTHING)
return (s1 == GDK_IM_PREEDIT_NOTHING)? style1:style2;
} else {
s1 = style1 & GDK_IM_STATUS_MASK;
s2 = style2 & GDK_IM_STATUS_MASK;
u = s1 | s2;
if ( u & GDK_IM_STATUS_CALLBACKS)
return (s1 == GDK_IM_STATUS_CALLBACKS)? style1:style2;
else if ( u & GDK_IM_STATUS_AREA)
return (s1 == GDK_IM_STATUS_AREA)? style1:style2;
else if ( u & GDK_IM_STATUS_NOTHING)
return (s1 == GDK_IM_STATUS_NOTHING)? style1:style2;
else if ( u & GDK_IM_STATUS_NONE)
return (s1 == GDK_IM_STATUS_NONE)? style1:style2;
}
return 0; /* Get rid of stupid warning */
}
GdkIMStyle
gdk_im_decide_style (GdkIMStyle supported_style)
{
gint i;
GdkIMStyle style, tmp;
g_return_val_if_fail (xim_styles != NULL, 0);
style = 0;
for (i=0; i<xim_styles->count_styles; i++)
{
tmp = xim_styles->supported_styles[i];
if (tmp == (tmp & supported_style & xim_best_allowed_style))
style = gdk_im_choose_better_style (style, tmp);
}
return style;
}
GdkIMStyle
gdk_im_set_best_style (GdkIMStyle style)
{
if (style & GDK_IM_PREEDIT_MASK)
{
xim_best_allowed_style &= ~GDK_IM_PREEDIT_MASK;
xim_best_allowed_style |= GDK_IM_PREEDIT_NONE;
if (!(style & GDK_IM_PREEDIT_NONE))
{
xim_best_allowed_style |= GDK_IM_PREEDIT_NOTHING;
if (!(style & GDK_IM_PREEDIT_NOTHING))
{
xim_best_allowed_style |= GDK_IM_PREEDIT_AREA;
if (!(style & GDK_IM_PREEDIT_AREA))
{
xim_best_allowed_style |= GDK_IM_PREEDIT_POSITION;
if (!(style & GDK_IM_PREEDIT_POSITION))
xim_best_allowed_style |= GDK_IM_PREEDIT_CALLBACKS;
}
}
}
}
if (style & GDK_IM_STATUS_MASK)
{
xim_best_allowed_style &= ~GDK_IM_STATUS_MASK;
xim_best_allowed_style |= GDK_IM_STATUS_NONE;
if (!(style & GDK_IM_STATUS_NONE))
{
xim_best_allowed_style |= GDK_IM_STATUS_NOTHING;
if (!(style & GDK_IM_STATUS_NOTHING))
{
xim_best_allowed_style |= GDK_IM_STATUS_AREA;
if (!(style & GDK_IM_STATUS_AREA))
xim_best_allowed_style |= GDK_IM_STATUS_CALLBACKS;
}
}
}
return xim_best_allowed_style;
}
#ifdef USE_X11R6_XIM
static void
gdk_im_destroy_cb (XIM im, XPointer client_data, XPointer call_data)
{
GList *node;
GdkICPrivate *private;
GDK_NOTE (XIM, g_message ("Ouch, Input Method is destroyed!!\n"));
xim_im = NULL;
if (xim_styles)
{
XFree (xim_styles);
xim_styles = NULL;
}
for (node = xim_ic_list; node != NULL; node = g_list_next(node))
{
private = (GdkICPrivate *) (node->data);
private->xic = NULL;
}
XRegisterIMInstantiateCallback (gdk_display, NULL, NULL, NULL,
gdk_im_instantiate_cb, NULL);
}
static void
gdk_im_instantiate_cb (Display *display,
XPointer client_data, XPointer call_data)
{
GDK_NOTE (XIM, g_message ("New IM is instantiated."));
if (display != gdk_display)
return;
gdk_im_real_open ();
if (xim_im != NULL)
XUnregisterIMInstantiateCallback (gdk_display, NULL, NULL, NULL,
gdk_im_instantiate_cb, NULL);
}
#endif
static gint
gdk_im_real_open (void)
{
GList *node;
xim_im = XOpenIM (GDK_DISPLAY(), NULL, NULL, NULL);
if (xim_im == NULL)
{
GDK_NOTE (XIM, g_warning ("Unable to open IM."));
return FALSE;
}
else
{
#ifdef USE_X11R6_XIM
XIMCallback destroy_cb;
destroy_cb.callback = gdk_im_destroy_cb;
destroy_cb.client_data = NULL;
if (NULL != XSetIMValues (xim_im, XNDestroyCallback, &destroy_cb, NULL))
GDK_NOTE (XIM, g_warning ("Could not set destroy callback to IM. Be careful to not destroy your input method."));
#endif
XGetIMValues (xim_im, XNQueryInputStyle, &xim_styles, NULL, NULL);
for (node = xim_ic_list; node != NULL; node = g_list_next(node))
{
GdkICPrivate *private = (GdkICPrivate *) (node->data);
if (private->xic == NULL)
gdk_ic_real_new ((GdkIC *)private);
}
return TRUE;
}
}
gint
gdk_im_open (void)
{
gdk_xim_ic = NULL;
gdk_xim_window = (GdkWindow*)NULL;
xim_im = NULL;
xim_styles = NULL;
/* initialize XIM Protocol variables */
if (!(xim_best_allowed_style & GDK_IM_PREEDIT_MASK))
gdk_im_set_best_style (GDK_IM_PREEDIT_CALLBACKS);
if (!(xim_best_allowed_style & GDK_IM_STATUS_MASK))
gdk_im_set_best_style (GDK_IM_STATUS_CALLBACKS);
if (gdk_im_real_open ())
return TRUE;
#ifdef USE_X11R6_XIM
XRegisterIMInstantiateCallback (gdk_display, NULL, NULL, NULL,
gdk_im_instantiate_cb, NULL);
#endif
return FALSE;
}
void
gdk_im_close (void)
{
if (xim_im)
{
XCloseIM (xim_im);
xim_im = NULL;
}
if (xim_styles)
{
XFree (xim_styles);
xim_styles = NULL;
}
}
gint
gdk_im_ready (void)
{
return (xim_im != NULL);
}
static void
gdk_ic_real_new (GdkIC *ic)
{
XPoint spot_location;
XRectangle preedit_area;
XRectangle status_area;
XVaNestedList *preedit_attr = NULL;
XVaNestedList *status_attr = NULL;
GdkICAttr *attr;
GdkICPrivate *private;
GdkICAttributesType mask = GDK_IC_ALL_REQ;
private = (GdkICPrivate *) ic;
attr = private->attr;
switch (attr->style & GDK_IM_PREEDIT_MASK)
{
case GDK_IM_PREEDIT_AREA:
mask |= GDK_IC_PREEDIT_AREA_REQ;
preedit_area.x = attr->preedit_area.x;
preedit_area.y = attr->preedit_area.x;
preedit_area.width = attr->preedit_area.width;
preedit_area.height = attr->preedit_area.height;
preedit_attr = XVaCreateNestedList (0,
XNArea, &preedit_area,
XNFontSet,
GDK_FONT_XFONT(attr->preedit_fontset),
NULL);
break;
case GDK_IM_PREEDIT_POSITION:
mask |= GDK_IC_PREEDIT_POSITION_REQ;
preedit_area.x = attr->preedit_area.x;
preedit_area.y = attr->preedit_area.x;
preedit_area.width = attr->preedit_area.width;
preedit_area.height = attr->preedit_area.height;
spot_location.x = attr->spot_location.x;
spot_location.y = attr->spot_location.y;
preedit_attr = XVaCreateNestedList (0,
XNArea, &preedit_area,
XNFontSet,
GDK_FONT_XFONT(attr->preedit_fontset),
XNSpotLocation, &spot_location,
NULL);
break;
}
switch (attr->style & GDK_IM_STATUS_MASK)
{
case GDK_IM_STATUS_AREA:
mask |= GDK_IC_STATUS_AREA_REQ;
status_area.x = attr->status_area.x;
status_area.y = attr->status_area.x;
status_area.width = attr->status_area.width;
status_area.height = attr->status_area.height;
status_attr = XVaCreateNestedList (0,
XNArea, &status_area,
XNFontSet,
GDK_FONT_XFONT(attr->status_fontset),
NULL);
break;
}
if (preedit_attr != NULL && status_attr != NULL)
private->xic = XCreateIC (xim_im,
XNInputStyle,
attr->style,
XNClientWindow,
GDK_WINDOW_XWINDOW(attr->client_window),
XNPreeditAttributes,
preedit_attr,
XNStatusAttributes,
status_attr,
NULL);
else if (preedit_attr != NULL)
private->xic = XCreateIC (xim_im,
XNInputStyle,
attr->style,
XNClientWindow,
GDK_WINDOW_XWINDOW(attr->client_window),
XNPreeditAttributes,
preedit_attr,
NULL);
else if (status_attr != NULL)
private->xic = XCreateIC (xim_im,
XNInputStyle,
attr->style,
XNClientWindow,
GDK_WINDOW_XWINDOW(attr->client_window),
XNStatusAttributes,
status_attr,
NULL);
else
private->xic = XCreateIC (xim_im,
XNInputStyle,
attr->style,
XNClientWindow,
GDK_WINDOW_XWINDOW(attr->client_window),
NULL);
if (preedit_attr)
XFree (preedit_attr);
if (status_attr)
XFree (status_attr);
if (private->xic == NULL)
g_warning ("can not create input context with specified input style.");
else
gdk_ic_real_set_attr (ic, private->attr, private->mask & ~mask);
}
GdkIC *
gdk_ic_new (GdkICAttr *attr, GdkICAttributesType mask)
{
GdkICPrivate *private;
gboolean error = 0;
GdkICAttributesType invalid_mask;
GdkICAttr *pattr;
g_return_val_if_fail (attr != NULL, NULL);
g_return_val_if_fail ((mask & GDK_IC_ALL_REQ) == GDK_IC_ALL_REQ, NULL);
switch (attr->style & GDK_IM_PREEDIT_MASK)
{
case 0:
g_warning ("preedit style is not specified.\n");
error = 1;
break;
case GDK_IM_PREEDIT_AREA:
if ((mask & GDK_IC_PREEDIT_AREA_REQ) != GDK_IC_PREEDIT_AREA_REQ)
error = 4;
break;
case GDK_IM_PREEDIT_POSITION:
if ((mask & GDK_IC_PREEDIT_POSITION_REQ) != GDK_IC_PREEDIT_POSITION_REQ)
error = 4;
break;
}
switch (attr->style & GDK_IM_STATUS_MASK)
{
case 0:
g_warning ("status style is not specified.\n");
error = 2;
break;
case GDK_IM_STATUS_AREA:
if ((mask & GDK_IC_STATUS_AREA_REQ) != GDK_IC_STATUS_AREA_REQ)
error = 8;
break;
}
if (error)
{
if (error & 12)
g_warning ("IC attribute is not enough to required input style.\n");
return NULL;
}
if (attr->client_window == NULL ||
((GdkWindowPrivate *)attr->client_window)->destroyed)
{
g_warning ("Client_window is null or already destroyed.\n");
return NULL;
}
private = g_new0 (GdkICPrivate, 1);
private->attr = pattr = gdk_ic_attr_new ();
gdk_window_ref (attr->client_window);
pattr->client_window = attr->client_window;
pattr->style = attr->style;
private->mask = GDK_IC_STYLE | GDK_IC_CLIENT_WINDOW;
/* XIC is still not created, so following call only copies attributes */
invalid_mask = gdk_ic_set_attr ((GdkIC *)private, attr, mask & ~GDK_IC_ALL_REQ);
switch (attr->style & GDK_IM_PREEDIT_MASK)
{
case GDK_IM_PREEDIT_AREA:
if (invalid_mask & GDK_IC_PREEDIT_AREA_REQ)
error = TRUE;
break;
case GDK_IM_PREEDIT_POSITION:
if (invalid_mask & GDK_IC_PREEDIT_POSITION_REQ)
error = TRUE;
break;
}
switch (attr->style & GDK_IM_STATUS_MASK)
{
case GDK_IM_STATUS_AREA:
if (invalid_mask & GDK_IC_STATUS_AREA_REQ)
error = TRUE;
break;
}
if (error == TRUE)
{
g_warning ("Essential attributes for required style are invalid.\n");
gdk_ic_destroy ((GdkIC *)private);
return NULL;
}
if (gdk_im_ready ())
gdk_ic_real_new ((GdkIC *)private);
xim_ic_list = g_list_append (xim_ic_list, private);
return (GdkIC *)private;
}
void
gdk_ic_destroy (GdkIC *ic)
{
GdkICPrivate *private;
g_return_if_fail (ic != NULL);
private = (GdkICPrivate *) ic;
if (gdk_xim_ic == private)
gdk_im_end ();
GDK_NOTE (XIM, g_message ("ic_destroy %p\n", private->xic));
if (private->xic != NULL)
XDestroyIC (private->xic);
if (private->mask & GDK_IC_CLIENT_WINDOW)
gdk_window_unref (private->attr->client_window);
if (private->mask & GDK_IC_FOCUS_WINDOW)
gdk_window_unref (private->attr->focus_window);
if (private->mask & GDK_IC_PREEDIT_FONTSET)
gdk_font_unref (private->attr->preedit_fontset);
if (private->mask & GDK_IC_PREEDIT_PIXMAP)
gdk_pixmap_unref (private->attr->preedit_pixmap);
if (private->mask & GDK_IC_PREEDIT_COLORMAP)
gdk_colormap_unref (private->attr->preedit_colormap);
if (private->mask & GDK_IC_STATUS_FONTSET)
gdk_font_unref (private->attr->status_fontset);
if (private->mask & GDK_IC_STATUS_PIXMAP)
gdk_pixmap_unref (private->attr->status_pixmap);
if (private->mask & GDK_IC_STATUS_COLORMAP)
gdk_colormap_unref (private->attr->status_colormap);
xim_ic_list = g_list_remove (xim_ic_list, private);
gdk_ic_attr_destroy (private->attr);
g_free (private);
}
GdkIMStyle
gdk_ic_get_style (GdkIC *ic)
{
GdkICPrivate *private;
g_return_val_if_fail (ic != NULL, 0);
private = (GdkICPrivate *) ic;
return private->attr->style;
}
/*
* for keeping binary compatibility if member of ic attributes is added.
*/
GdkICAttr *
gdk_ic_attr_new (void)
{
return g_new0 (GdkICAttr, 1);
}
void
gdk_ic_attr_destroy (GdkICAttr *attr)
{
g_return_if_fail (attr != NULL);
g_free (attr);
}
static GdkICAttributesType
gdk_ic_real_set_attr (GdkIC *ic,
GdkICAttr *attr,
GdkICAttributesType mask)
{
GdkICPrivate *private = (GdkICPrivate *)ic;
XIC xic = private->xic;
GdkICAttributesType error = 0;
GdkImArg arg[2] = {{NULL, NULL}, {NULL, NULL}};
if (mask & GDK_IC_FOCUS_WINDOW)
{
if (XSetICValues (xic, XNFocusWindow,
GDK_WINDOW_XWINDOW(attr->focus_window), NULL) != NULL)
error |= GDK_IC_FOCUS_WINDOW;
}
if (mask & GDK_IC_SPOT_LOCATION)
{
XPoint point;
point.x = attr->spot_location.x;
point.y = attr->spot_location.y;
arg->name = XNSpotLocation;
arg->value = (gpointer) &point;
if (XSetICValues (xic, XNPreeditAttributes, arg, NULL))
error |= GDK_IC_SPOT_LOCATION;
}
if (mask & GDK_IC_LINE_SPACING)
{
arg->name = XNLineSpace;
arg->value = GINT_TO_POINTER( attr->line_spacing );
if (XSetICValues (xic, XNPreeditAttributes, arg, NULL))
error |= GDK_IC_LINE_SPACING;
}
if (mask & GDK_IC_CURSOR)
{
GdkCursorPrivate *cursor = (GdkCursorPrivate *) attr->cursor;
if (XSetICValues (xic, XNCursor, cursor->xcursor, NULL))
error |= GDK_IC_CURSOR;
}
if (mask & GDK_IC_PREEDIT_FONTSET)
{
arg->name = XNFontSet;
arg->value = (gpointer) GDK_FONT_XFONT(attr->preedit_fontset);
if (XSetICValues (xic, XNPreeditAttributes, arg, NULL))
error |= GDK_IC_PREEDIT_FONTSET;
}
if (mask & GDK_IC_PREEDIT_AREA)
{
XRectangle rect;
rect.x = attr->preedit_area.x;
rect.y = attr->preedit_area.y;
rect.width = attr->preedit_area.width;
rect.height = attr->preedit_area.height;
arg->name = XNArea;
arg->value = (gpointer) &rect;
if (XSetICValues (xic, XNPreeditAttributes, arg, NULL))
error |= GDK_IC_PREEDIT_AREA;
}
if (mask & GDK_IC_PREEDIT_AREA_NEEDED)
{
XRectangle rect;
rect.x = attr->preedit_area_needed.x;
rect.y = attr->preedit_area_needed.y;
rect.width = attr->preedit_area_needed.width;
rect.height = attr->preedit_area_needed.height;
arg->name = XNArea;
arg->value = (gpointer) &rect;
if (XSetICValues (xic, XNPreeditAttributes, arg, NULL))
error |= GDK_IC_PREEDIT_AREA_NEEDED;
else
private->mask &= ~GDK_IC_PREEDIT_AREA_NEEDED;
}
if (mask & GDK_IC_PREEDIT_FOREGROUND)
{
arg->name = XNForeground;
arg->value = (gpointer) attr->preedit_foreground.pixel;
if (XSetICValues (xic, XNPreeditAttributes, arg, NULL))
error |= GDK_IC_PREEDIT_FOREGROUND;
}
if (mask & GDK_IC_PREEDIT_BACKGROUND)
{
arg->name = XNBackground;
arg->value = (gpointer) attr->preedit_background.pixel;
if (XSetICValues (xic, XNPreeditAttributes, arg, NULL))
error |= GDK_IC_PREEDIT_BACKGROUND;
}
if (mask & GDK_IC_PREEDIT_PIXMAP)
{
arg->name = XNBackgroundPixmap;
arg->value = (gpointer) GDK_WINDOW_XWINDOW(attr->preedit_pixmap);
if (XSetICValues (xic, XNPreeditAttributes, arg, NULL))
error |= GDK_IC_PREEDIT_PIXMAP;
}
if (mask & GDK_IC_PREEDIT_COLORMAP)
{
arg->name = XNColormap;
arg->value = (gpointer) GDK_COLORMAP_XCOLORMAP(attr->preedit_colormap);
if (XSetICValues (xic, XNPreeditAttributes, arg, NULL))
error |= GDK_IC_PREEDIT_COLORMAP;
}
if (mask & GDK_IC_STATUS_FONTSET)
{
arg->name = XNFontSet;
arg->value = (gpointer) GDK_FONT_XFONT(attr->status_fontset);
if (XSetICValues (xic, XNPreeditAttributes, arg, NULL))
error |= GDK_IC_STATUS_FONTSET;
}
if (mask & GDK_IC_STATUS_AREA)
{
XRectangle rect;
rect.x = attr->status_area.x;
rect.y = attr->status_area.y;
rect.width = attr->status_area.width;
rect.height = attr->status_area.height;
arg->name = XNArea;
arg->value = (gpointer) &rect;
if (XSetICValues (xic, XNPreeditAttributes, arg, NULL))
error |= GDK_IC_STATUS_AREA;
}
if (mask & GDK_IC_STATUS_AREA_NEEDED)
{
XRectangle rect;
rect.x = attr->status_area_needed.x;
rect.y = attr->status_area_needed.y;
rect.width = attr->status_area_needed.width;
rect.height = attr->status_area_needed.height;
arg->name = XNArea;
arg->value = (gpointer) &rect;
if (XSetICValues (xic, XNPreeditAttributes, arg, NULL))
error |= GDK_IC_STATUS_AREA_NEEDED;
else
private->mask &= ~GDK_IC_STATUS_AREA_NEEDED;
}
if (mask & GDK_IC_STATUS_FOREGROUND)
{
arg->name = XNForeground;
arg->value = (gpointer) attr->status_foreground.pixel;
if (XSetICValues (xic, XNPreeditAttributes, arg, NULL))
error |= GDK_IC_STATUS_FOREGROUND;
}
if (mask & GDK_IC_STATUS_BACKGROUND)
{
arg->name = XNBackground;
arg->value = (gpointer) attr->status_background.pixel;
if (XSetICValues (xic, XNPreeditAttributes, arg, NULL))
error |= GDK_IC_STATUS_BACKGROUND;
}
if (mask & GDK_IC_STATUS_PIXMAP)
{
arg->name = XNBackgroundPixmap;
arg->value = (gpointer) GDK_WINDOW_XWINDOW(attr->status_pixmap);
if (XSetICValues (xic, XNPreeditAttributes, arg, NULL))
error |= GDK_IC_STATUS_PIXMAP;
}
if (mask & GDK_IC_STATUS_COLORMAP)
{
arg->name = XNColormap;
arg->value = (gpointer) GDK_COLORMAP_XCOLORMAP(attr->status_colormap);
if (XSetICValues (xic, XNPreeditAttributes, arg, NULL))
error |= GDK_IC_STATUS_COLORMAP;
}
return error;
}
GdkICAttributesType
gdk_ic_set_attr (GdkIC *ic,
GdkICAttr *attr,
GdkICAttributesType mask)
{
GdkICPrivate *private;
GdkICAttr *pattr;
GdkICAttributesType error = 0;
GdkICAttributesType newattr = 0;
g_return_val_if_fail (ic != NULL, 0);
g_return_val_if_fail (attr != NULL, 0);
private = (GdkICPrivate *) ic;
pattr = private->attr;
/* Check and copy new attributes */
if (mask & GDK_IC_STYLE)
{
g_warning ("input style can be specified only when creating new ic.\n");
error |= GDK_IC_STYLE;
}
if (mask & GDK_IC_FILTER_EVENTS)
{
g_warning ("filter events is read only attributes.\n");
error |= GDK_IC_FILTER_EVENTS;
}
if (mask & GDK_IC_CLIENT_WINDOW)
{
g_warning ("client window can be specified only when creating new ic.\n");
error |= GDK_IC_CLIENT_WINDOW;
}
if (mask & GDK_IC_FOCUS_WINDOW)
{
if (attr->focus_window == NULL)
{
g_warning ("specified focus_window is invalid.\n");
error |= GDK_IC_FOCUS_WINDOW;
}
else if (pattr->focus_window != attr->focus_window)
{
if (pattr->focus_window != NULL)
gdk_window_unref (pattr->focus_window);
if (attr->focus_window != NULL)
gdk_window_ref (attr->focus_window);
pattr->focus_window = attr->focus_window;
newattr |= GDK_IC_FOCUS_WINDOW;
}
}
if (mask & GDK_IC_SPOT_LOCATION)
{
pattr->spot_location = attr->spot_location;
newattr |= GDK_IC_SPOT_LOCATION;
}
if (mask & GDK_IC_LINE_SPACING)
{
pattr->line_spacing = attr->line_spacing;
newattr |= GDK_IC_LINE_SPACING;
}
if (mask & GDK_IC_CURSOR)
{
pattr->cursor = attr->cursor;
newattr |= GDK_IC_CURSOR;
}
if (mask & GDK_IC_PREEDIT_FONTSET)
{
if (attr->preedit_fontset == NULL ||
attr->preedit_fontset->type != GDK_FONT_FONTSET)
{
g_warning ("gdk_font is NULL or not a fontset.\n");
error |= GDK_IC_PREEDIT_FONTSET;
}
else if (pattr->preedit_fontset != attr->preedit_fontset)
{
if (pattr->preedit_fontset != NULL)
gdk_font_unref (pattr->preedit_fontset);
if (attr->preedit_fontset != NULL)
gdk_font_ref (attr->preedit_fontset);
pattr->preedit_fontset = attr->preedit_fontset;
newattr |= GDK_IC_PREEDIT_FONTSET;
}
}
if (mask & GDK_IC_PREEDIT_AREA)
{
pattr->preedit_area = attr->preedit_area;
newattr |= GDK_IC_PREEDIT_AREA;
}
if (mask & GDK_IC_PREEDIT_AREA_NEEDED)
{
if (attr->preedit_area_needed.width == 0 ||
attr->preedit_area_needed.height == 0)
{
g_warning ("width and height of preedit_area_needed must be non 0.\n");
error |= GDK_IC_PREEDIT_AREA_NEEDED;
}
else
{
pattr->preedit_area_needed = attr->preedit_area_needed;
newattr |= GDK_IC_PREEDIT_AREA_NEEDED;
}
}
if (mask & GDK_IC_PREEDIT_FOREGROUND)
{
pattr->preedit_foreground = attr->preedit_foreground;
newattr |= GDK_IC_PREEDIT_FOREGROUND;
}
if (mask & GDK_IC_PREEDIT_BACKGROUND)
{
pattr->preedit_background = attr->preedit_background;
newattr |= GDK_IC_PREEDIT_BACKGROUND;
}
if (mask & GDK_IC_PREEDIT_PIXMAP)
{
if (attr->preedit_pixmap != NULL &&
((GdkPixmapPrivate *)attr->preedit_pixmap)->destroyed)
{
g_warning ("Preedit pixmap is already destroyed.\n");
error |= GDK_IC_PREEDIT_PIXMAP;
}
else
{
if (pattr->preedit_pixmap != attr->preedit_pixmap)
{
if (pattr->preedit_pixmap != NULL)
gdk_pixmap_unref (pattr->preedit_pixmap);
if (attr->preedit_pixmap)
gdk_pixmap_ref (attr->preedit_pixmap);
pattr->preedit_pixmap = attr->preedit_pixmap;
newattr |= GDK_IC_PREEDIT_PIXMAP;
}
}
}
if (mask & GDK_IC_PREEDIT_COLORMAP)
{
if (pattr->preedit_colormap != attr->preedit_colormap)
{
if (pattr->preedit_colormap != NULL)
gdk_colormap_unref (pattr->preedit_colormap);
if (attr->preedit_colormap != NULL)
gdk_colormap_ref (attr->preedit_colormap);
pattr->preedit_colormap = attr->preedit_colormap;
newattr |= GDK_IC_PREEDIT_COLORMAP;
}
}
if (mask & GDK_IC_STATUS_FONTSET)
{
if (attr->status_fontset == NULL ||
attr->status_fontset->type != GDK_FONT_FONTSET)
{
g_warning ("gdk_font is NULL or not a fontset.\n");
error |= GDK_IC_STATUS_FONTSET;
}
else if (pattr->status_fontset != attr->status_fontset)
{
if (pattr->status_fontset != NULL)
gdk_font_unref (pattr->status_fontset);
if (attr->status_fontset != NULL)
gdk_font_ref (attr->status_fontset);
pattr->status_fontset = attr->status_fontset;
newattr |= GDK_IC_STATUS_FONTSET;
}
}
if (mask & GDK_IC_STATUS_AREA)
{
pattr->status_area = attr->status_area;
newattr |= GDK_IC_STATUS_AREA;
}
if (mask & GDK_IC_STATUS_AREA_NEEDED)
{
if (attr->status_area_needed.width == 0 ||
attr->status_area_needed.height == 0)
{
g_warning ("width and height of status_area_needed must be non 0.\n");
error |= GDK_IC_STATUS_AREA_NEEDED;
}
else
{
pattr->status_area_needed = attr->status_area_needed;
newattr |= GDK_IC_STATUS_AREA_NEEDED;
}
}
if (mask & GDK_IC_STATUS_FOREGROUND)
{
pattr->status_foreground = attr->status_foreground;
newattr |= GDK_IC_STATUS_FOREGROUND;
}
if (mask & GDK_IC_STATUS_BACKGROUND)
{
pattr->status_background = attr->status_background;
newattr |= GDK_IC_STATUS_BACKGROUND;
}
if (mask & GDK_IC_STATUS_PIXMAP)
{
if (attr->status_pixmap != NULL &&
((GdkPixmapPrivate *)attr->status_pixmap)->destroyed)
{
g_warning ("Preedit pixmap is already destroyed.\n");
error |= GDK_IC_STATUS_PIXMAP;
}
else
{
if (pattr->status_pixmap != attr->status_pixmap)
{
if (pattr->status_pixmap != NULL)
gdk_pixmap_unref (pattr->status_pixmap);
if (attr->status_pixmap)
gdk_pixmap_ref (attr->status_pixmap);
pattr->status_pixmap = attr->status_pixmap;
newattr |= GDK_IC_STATUS_PIXMAP;
}
}
}
if (mask & GDK_IC_STATUS_COLORMAP)
{
if (pattr->status_colormap != attr->status_colormap)
{
if (pattr->status_colormap != NULL)
gdk_colormap_unref (pattr->status_colormap);
if (attr->status_colormap != NULL)
gdk_colormap_ref (attr->status_colormap);
pattr->status_colormap = attr->status_colormap;
newattr |= GDK_IC_STATUS_COLORMAP;
}
}
if (private->xic == NULL)
return error;
error |= gdk_ic_real_set_attr (ic, pattr, newattr);
return error;
}
GdkICAttributesType
gdk_ic_get_attr (GdkIC *ic,
GdkICAttr *attr,
GdkICAttributesType mask)
{
GdkICPrivate *private;
GdkICAttr *pattr;
GdkICAttributesType known, unknown = 0;
g_return_val_if_fail (ic != NULL, -1);
g_return_val_if_fail (attr != NULL, -1);
private = (GdkICPrivate *) ic;
pattr = private->attr;
known = mask & private->mask;
if (known & GDK_IC_STYLE)
attr->style = pattr->style;
if (known & GDK_IC_CLIENT_WINDOW)
attr->client_window = pattr->client_window;
if (known & GDK_IC_FOCUS_WINDOW)
attr->focus_window = pattr->focus_window;
if (known & GDK_IC_FILTER_EVENTS)
attr->filter_events = pattr->filter_events;
if (known & GDK_IC_LINE_SPACING)
attr->line_spacing = pattr->line_spacing;
if (known & GDK_IC_CURSOR)
attr->cursor = pattr->cursor;
if (known & GDK_IC_PREEDIT_FONTSET)
attr->preedit_fontset = pattr->preedit_fontset;
if (known & GDK_IC_PREEDIT_AREA)
attr->preedit_area = pattr->preedit_area;
if (known & GDK_IC_PREEDIT_AREA_NEEDED)
attr->preedit_area_needed = pattr->preedit_area_needed;
if (known & GDK_IC_PREEDIT_FOREGROUND)
attr->preedit_foreground = pattr->preedit_foreground;
if (known & GDK_IC_PREEDIT_BACKGROUND)
attr->preedit_background = pattr->preedit_background;
if (known & GDK_IC_PREEDIT_PIXMAP)
attr->preedit_pixmap = pattr->preedit_pixmap;
if (known & GDK_IC_PREEDIT_COLORMAP)
attr->preedit_colormap = pattr->preedit_colormap;
if (known & GDK_IC_STATUS_FONTSET)
attr->status_fontset = pattr->status_fontset;
if (known & GDK_IC_STATUS_AREA)
attr->status_area = pattr->status_area;
if (known & GDK_IC_STATUS_AREA_NEEDED)
attr->status_area_needed = pattr->status_area_needed;
if (known & GDK_IC_STATUS_FOREGROUND)
attr->status_foreground = pattr->status_foreground;
if (known & GDK_IC_STATUS_BACKGROUND)
attr->status_background = pattr->status_background;
if (known & GDK_IC_STATUS_PIXMAP)
attr->status_pixmap = pattr->status_pixmap;
if (known & GDK_IC_STATUS_COLORMAP)
attr->status_colormap = pattr->status_colormap;
if (private->xic)
{
unknown = mask & ~(private->mask);
if (unknown & GDK_IC_FOCUS_WINDOW)
attr->focus_window = pattr->client_window;
if (unknown & GDK_IC_FILTER_EVENTS)
{
gdk_ic_get_events (ic);
attr->filter_events = pattr->filter_events;
}
if (mask & GDK_IC_SPOT_LOCATION)
{
XPoint point;
XVaNestedList *list;
list = XVaCreateNestedList (0, XNSpotLocation, &point, NULL);
if (XGetICValues (private->xic, XNPreeditAttributes, list, NULL))
unknown &= ~GDK_IC_SPOT_LOCATION;
else
{
pattr->spot_location.x = point.x;
pattr->spot_location.y = point.y;
private->mask |= GDK_IC_SPOT_LOCATION;
attr->spot_location = pattr->spot_location;
}
XFree (list);
}
if (unknown & GDK_IC_PREEDIT_AREA_NEEDED)
{
XRectangle rect;
XVaNestedList *list;
list = XVaCreateNestedList (0, XNAreaNeeded, &rect, NULL);
if (XGetICValues (private->xic, XNPreeditAttributes, list, NULL))
unknown &= ~GDK_IC_PREEDIT_AREA_NEEDED;
else
{
pattr->preedit_area_needed.x = rect.x;
pattr->preedit_area_needed.y = rect.y;
pattr->preedit_area_needed.width = rect.width;
pattr->preedit_area_needed.height = rect.height;
private->mask |= GDK_IC_PREEDIT_AREA_NEEDED;
attr->preedit_area = pattr->preedit_area;
}
XFree (list);
}
if (unknown & GDK_IC_STATUS_AREA_NEEDED)
{
XRectangle rect;
XVaNestedList *list;
list = XVaCreateNestedList (0, XNAreaNeeded, &rect, NULL);
if (XGetICValues (private->xic, XNStatusAttributes, list, NULL))
unknown &= ~GDK_IC_STATUS_AREA_NEEDED;
else
{
pattr->status_area_needed.x = rect.x;
pattr->status_area_needed.y = rect.y;
pattr->status_area_needed.width = rect.width;
pattr->status_area_needed.height = rect.height;
private->mask |= GDK_IC_STATUS_AREA_NEEDED;
attr->status_area = pattr->status_area;
}
XFree (list);
}
}
return mask & ~known & ~unknown;
}
GdkEventMask
gdk_ic_get_events (GdkIC *ic)
{
GdkEventMask mask;
glong xmask;
glong bit;
GdkICPrivate *private;
gint i;
/* From gdkwindow.c */
g_return_val_if_fail (ic != NULL, 0);
private = (GdkICPrivate *) ic;
if (private->mask & GDK_IC_FILTER_EVENTS)
return private->attr->filter_events;
if (XGetICValues (private->xic, XNFilterEvents, &xmask, NULL) != NULL)
{
GDK_NOTE (XIM, g_warning ("Call to XGetICValues: %s failed", XNFilterEvents));
return 0;
}
mask = 0;
for (i=0, bit=2; i < gdk_nevent_masks; i++, bit <<= 1)
if (xmask & gdk_event_mask_table [i])
{
mask |= bit;
xmask &= ~ gdk_event_mask_table [i];
}
if (xmask)
g_warning ("ic requires events not supported by the application (%#04lx)", xmask);
private->attr->filter_events = mask;
private->mask |= GDK_IC_FILTER_EVENTS;
return mask;
}
void
gdk_ic_cleanup (void)
{
gint destroyed;
destroyed = 0;
while (xim_ic_list != NULL)
{
gdk_ic_destroy ((GdkIC *) xim_ic_list->data);
destroyed ++;
}
#ifdef G_ENABLE_DEBUG
if ((gdk_debug_flags & GDK_DEBUG_XIM) && destroyed > 0)
{
g_warning ("Cleaned up %i IC(s)\n", destroyed);
}
#endif /* G_ENABLE_DEBUG */
}
#else /* !USE_XIM */
void
gdk_im_begin (GdkIC *ic, GdkWindow* window)
{
}
void
gdk_im_end (void)
{
}
GdkIMStyle
gdk_im_decide_style (GdkIMStyle supported_style)
{
return GDK_IM_PREEDIT_NONE | GDK_IM_STATUS_NONE;
}
GdkIMStyle
gdk_im_set_best_style (GdkIMStyle style)
{
return GDK_IM_PREEDIT_NONE | GDK_IM_STATUS_NONE;
}
gint
gdk_im_ready (void)
{
return FALSE;
}
GdkIC *
gdk_ic_new (GdkICAttr *attr, GdkICAttributesType mask)
{
return NULL;
}
void
gdk_ic_destroy (GdkIC *ic)
{
}
GdkIMStyle
gdk_ic_get_style (GdkIC *ic)
{
return GDK_IM_PREEDIT_NONE | GDK_IM_STATUS_NONE;
}
void
gdk_ic_set_values (GdkIC *ic, ...)
{
}
void
gdk_ic_get_values (GdkIC *ic, ...)
{
}
GdkICAttributesType
gdk_ic_set_attr (GdkIC *ic, GdkICAttr *attr, GdkICAttributesType mask)
{
return 0;
}
GdkICAttributesType
gdk_ic_get_attr (GdkIC *ic, GdkICAttr *attr, GdkICAttributesType mask)
{
return 0;
}
GdkEventMask
gdk_ic_get_events (GdkIC *ic)
{
return 0;
}
#endif /* USE_XIM */
/*
* gdk_wcstombs
*
* Returns a multi-byte string converted from the specified array
* of wide characters. The string is newly allocated. The array of
* wide characters must be null-terminated. If the conversion is
* failed, it returns NULL.
*/
gchar *
gdk_wcstombs (const GdkWChar *src)
{
gchar *mbstr;
if (gdk_use_mb)
{
XTextProperty tpr;
if (sizeof(wchar_t) != sizeof(GdkWChar))
{
gint i;
wchar_t *src_alt;
for (i=0; src[i]; i++);
src_alt = g_new (wchar_t, i+1);
for (; i>=0; i--)
src_alt[i] = src[i];
if (XwcTextListToTextProperty (gdk_display, &src_alt, 1, XTextStyle, &tpr)
!= Success)
{
g_free (src_alt);
return NULL;
}
g_free (src_alt);
}
else
{
if (XwcTextListToTextProperty (gdk_display, (wchar_t**)&src, 1,
XTextStyle, &tpr) != Success)
{
return NULL;
}
}
/*
* We must copy the string into an area allocated by glib, because
* the string 'tpr.value' must be freed by XFree().
*/
mbstr = g_strdup(tpr.value);
XFree (tpr.value);
}
else
{
gint length = 0;
gint i;
while (src[length] != 0)
length++;
mbstr = g_new (gchar, length + 1);
for (i=0; i<length+1; i++)
mbstr[i] = src[i];
}
return mbstr;
}
/*
* gdk_mbstowcs
*
* Converts the specified string into wide characters, and, returns the
* number of wide characters written. The string 'src' must be
* null-terminated. If the conversion is failed, it returns -1.
*/
gint
gdk_mbstowcs (GdkWChar *dest, const gchar *src, gint dest_max)
{
if (gdk_use_mb)
{
XTextProperty tpr;
wchar_t **wstrs, *wstr_src;
gint num_wstrs;
gint len_cpy;
if (XmbTextListToTextProperty (gdk_display, (char **)&src, 1, XTextStyle,
&tpr)
!= Success)
{
/* NoMem or LocaleNotSupp */
return -1;
}
if (XwcTextPropertyToTextList (gdk_display, &tpr, &wstrs, &num_wstrs)
!= Success)
{
/* InvalidChar */
return -1;
}
if (num_wstrs == 0)
return 0;
wstr_src = wstrs[0];
for (len_cpy=0; len_cpy<dest_max && wstr_src[len_cpy]; len_cpy++)
dest[len_cpy] = wstr_src[len_cpy];
XwcFreeStringList (wstrs);
return len_cpy;
}
else
{
gint i;
for (i=0; i<dest_max && src[i]; i++)
dest[i] = src[i];
return i;
}
}
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