SetWMCW.c revision 444c061a 
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/* Copyright 1993 Sun Microsystems, Inc.  All rights reserved.
8 *
9 * Permission is hereby granted, free of charge, to any person obtaining a
10 * copy of this software and associated documentation files (the
11 * "Software"), to deal in the Software without restriction, including
12 * without limitation the rights to use, copy, modify, merge, publish,
13 * distribute, and/or sell copies of the Software, and to permit persons
14 * to whom the Software is furnished to do so, provided that the above
15 * copyright notice(s) and this permission notice appear in all copies of
16 * the Software and that both the above copyright notice(s) and this
17 * permission notice appear in supporting documentation.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
22 * OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
23 * HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
24 * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
25 * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
26 * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
27 * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
28 *
29 * Except as contained in this notice, the name of a copyright holder
30 * shall not be used in advertising or otherwise to promote the sale, use
31 * or other dealings in this Software without prior written authorization
32 * of the copyright holder.
33 */
34
35/*
36
37Copyright 1989, 1994, 1998  The Open Group
38
39Permission to use, copy, modify, distribute, and sell this software and its
40documentation for any purpose is hereby granted without fee, provided that
41the above copyright notice appear in all copies and that both that
42copyright notice and this permission notice appear in supporting
43documentation.
44
45The above copyright notice and this permission notice shall be included in
46all copies or substantial portions of the Software.
47
48THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
49IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
50FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
51OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
52AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
53CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
54
55Except as contained in this notice, the name of The Open Group shall not be
56used in advertising or otherwise to promote the sale, use or other dealings
57in this Software without prior written authorization from The Open Group.
58
59*/
60
61#ifdef HAVE_CONFIG_H
62#include <config.h>
63#endif
64#include "IntrinsicI.h"
65#include <X11/Xatom.h>
66
67/*	Function Name: XtSetWMColormapWindows
68 *
69 *	Description: Sets the value of the WM_COLORMAP_WINDOWS
70 *                   property on a widget's window.
71 *
72 *	Arguments:  widget - specifies the widget on whose window the
73 *   		           - WM_COLORMAP_WINDOWS property will be stored.
74 *
75 *                  list - Specifies a list of widgets whose windows are to be
76 *		           listed in the WM_COLORMAP_WINDOWS property.
77 *                  count - Specifies the number of widgets in list.
78 *
79 *	Returns: none.
80 */
81
82void
83XtSetWMColormapWindows(
84    Widget widget,
85    Widget *list,
86    Cardinal count)
87{
88    Window *data;
89    Widget *checked, *top, *temp, hookobj;
90    Cardinal i, j, checked_count;
91    Boolean match;
92    Atom xa_wm_colormap_windows;
93    WIDGET_TO_APPCON(widget);
94
95    LOCK_APP(app);
96    if ( !XtIsRealized(widget) || (count == 0) ) {
97	UNLOCK_APP(app);
98	return;
99    }
100
101    top = checked = (Widget *) __XtMalloc( (Cardinal) sizeof(Widget) * count);
102
103
104/*
105 * The specification calls for only adding the windows that have unique
106 * colormaps to the property to this function, so we will make a pass through
107 * the widget list removing all the widgets with non-unique colormaps.
108 *
109 * We will also remove any unrealized widgets from the list at this time.
110 */
111
112    for (checked_count = 0, i = 0; i < count; i++) {
113	if (!XtIsRealized(list[i])) continue;
114
115	*checked = list[i];
116	match = FALSE;
117
118/*
119 * Don't check first element for matching colormap since there is nothing
120 * to check it against.
121 */
122
123	if (checked != top)
124	    for (j = 0, temp = top; j < checked_count ; j++, temp++)
125		if ( (*temp)->core.colormap == (*checked)->core.colormap) {
126		    match = TRUE;
127		    break;
128		}
129
130/*
131 * If no colormap was found to match then add this widget to the linked list.
132 */
133
134	if (!match) {
135	    checked++;
136	    checked_count++;
137	}
138    }
139
140/*
141 * Now that we have the list of widgets we need to convert it to a list of
142 * windows and set the property.
143 */
144
145    data = (Window *) __XtMalloc( (Cardinal) sizeof(Window) * checked_count);
146
147    for ( i = 0 ; i < checked_count ; i++)
148	data[i] = XtWindow(top[i]);
149
150    xa_wm_colormap_windows = XInternAtom(XtDisplay(widget),
151					 "WM_COLORMAP_WINDOWS", FALSE);
152
153    XChangeProperty(XtDisplay(widget), XtWindow(widget),
154		    xa_wm_colormap_windows, XA_WINDOW, 32,
155		    PropModeReplace, (unsigned char *) data, (int) i);
156
157    hookobj = XtHooksOfDisplay(XtDisplay(widget));
158    if (XtHasCallbacks(hookobj, XtNchangeHook) == XtCallbackHasSome) {
159	XtChangeHookDataRec call_data;
160
161	call_data.type = XtHsetWMColormapWindows;
162	call_data.widget = widget;
163	call_data.event_data = (XtPointer) list;
164	call_data.num_event_data = count;
165	XtCallCallbackList(hookobj,
166		((HookObject)hookobj)->hooks.changehook_callbacks,
167		(XtPointer)&call_data);
168    }
169
170    XtFree( (char *) data);
171    XtFree( (char *) top);
172    UNLOCK_APP(app);
173}
174