SetWMCW.c revision 1477040f 
1/* $Xorg: SetWMCW.c,v 1.4 2001/02/09 02:03:58 xorgcvs Exp $ */
2/* $XdotOrg: $
3 *
4 * Author:  Chris D. Peterson, MIT X Consortium
5 */
6
7/************************************************************
8
9Copyright 1993 Sun Microsystems, Inc.  All rights reserved.
10
11Permission is hereby granted, free of charge, to any person obtaining a
12copy of this software and associated documentation files (the "Software"),
13to deal in the Software without restriction, including without limitation
14the rights to use, copy, modify, merge, publish, distribute, sublicense,
15and/or sell copies of the Software, and to permit persons to whom the
16Software is furnished to do so, subject to the following conditions:
17
18The above copyright notice and this permission notice (including the next
19paragraph) shall be included in all copies or substantial portions of the
20Software.
21
22THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
23IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
24FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
25THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
26LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
27FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
28DEALINGS IN THE SOFTWARE.
29
30********************************************************/
31
32/*
33
34Copyright 1989, 1994, 1998  The Open Group
35
36Permission to use, copy, modify, distribute, and sell this software and its
37documentation for any purpose is hereby granted without fee, provided that
38the above copyright notice appear in all copies and that both that
39copyright notice and this permission notice appear in supporting
40documentation.
41
42The above copyright notice and this permission notice shall be included in
43all copies or substantial portions of the Software.
44
45THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
46IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
47FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
48OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
49AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
50CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
51
52Except as contained in this notice, the name of The Open Group shall not be
53used in advertising or otherwise to promote the sale, use or other dealings
54in this Software without prior written authorization from The Open Group.
55
56*/
57
58#ifdef HAVE_CONFIG_H
59#include <config.h>
60#endif
61#include "IntrinsicI.h"
62#include <X11/Xatom.h>
63
64/*	Function Name: XtSetWMColormapWindows
65 *
66 *	Description: Sets the value of the WM_COLORMAP_WINDOWS
67 *                   property on a widget's window.
68 *
69 *	Arguments:  widget - specifies the widget on whose window the
70 *   		           - WM_COLORMAP_WINDOWS property will be stored.
71 *
72 *                  list - Specifies a list of widgets whose windows are to be
73 *		           listed in the WM_COLORMAP_WINDOWS property.
74 *                  count - Specifies the number of widgets in list.
75 *
76 *	Returns: none.
77 */
78
79void
80XtSetWMColormapWindows(
81    Widget widget,
82    Widget *list,
83    Cardinal count)
84{
85    Window *data;
86    Widget *checked, *top, *temp, hookobj;
87    Cardinal i, j, checked_count;
88    Boolean match;
89    Atom xa_wm_colormap_windows;
90    WIDGET_TO_APPCON(widget);
91
92    LOCK_APP(app);
93    if ( !XtIsRealized(widget) || (count == 0) ) {
94	UNLOCK_APP(app);
95	return;
96    }
97
98    top = checked = (Widget *) __XtMalloc( (Cardinal) sizeof(Widget) * count);
99
100
101/*
102 * The specification calls for only adding the windows that have unique
103 * colormaps to the property to this function, so we will make a pass through
104 * the widget list removing all the widgets with non-unique colormaps.
105 *
106 * We will also remove any unrealized widgets from the list at this time.
107 */
108
109    for (checked_count = 0, i = 0; i < count; i++) {
110	if (!XtIsRealized(list[i])) continue;
111
112	*checked = list[i];
113	match = FALSE;
114
115/*
116 * Don't check first element for matching colormap since there is nothing
117 * to check it against.
118 */
119
120	if (checked != top)
121	    for (j = 0, temp = top; j < checked_count ; j++, temp++)
122		if ( (*temp)->core.colormap == (*checked)->core.colormap) {
123		    match = TRUE;
124		    break;
125		}
126
127/*
128 * If no colormap was found to match then add this widget to the linked list.
129 */
130
131	if (!match) {
132	    checked++;
133	    checked_count++;
134	}
135    }
136
137/*
138 * Now that we have the list of widgets we need to convert it to a list of
139 * windows and set the property.
140 */
141
142    data = (Window *) __XtMalloc( (Cardinal) sizeof(Window) * checked_count);
143
144    for ( i = 0 ; i < checked_count ; i++)
145	data[i] = XtWindow(top[i]);
146
147    xa_wm_colormap_windows = XInternAtom(XtDisplay(widget),
148					 "WM_COLORMAP_WINDOWS", FALSE);
149
150    XChangeProperty(XtDisplay(widget), XtWindow(widget),
151		    xa_wm_colormap_windows, XA_WINDOW, 32,
152		    PropModeReplace, (unsigned char *) data, (int) i);
153
154    hookobj = XtHooksOfDisplay(XtDisplay(widget));
155    if (XtHasCallbacks(hookobj, XtNchangeHook) == XtCallbackHasSome) {
156	XtChangeHookDataRec call_data;
157
158	call_data.type = XtHsetWMColormapWindows;
159	call_data.widget = widget;
160	call_data.event_data = (XtPointer) list;
161	call_data.num_event_data = count;
162	XtCallCallbackList(hookobj,
163		((HookObject)hookobj)->hooks.changehook_callbacks,
164		(XtPointer)&call_data);
165    }
166
167    XtFree( (char *) data);
168    XtFree( (char *) top);
169    UNLOCK_APP(app);
170}
171