SetWMCW.c revision fdf6a26f 
1/*
2 *
3 * Author:  Chris D. Peterson, MIT X Consortium
4 */
5
6/************************************************************
7
8Copyright (c) 1993, Oracle and/or its affiliates.
9
10Permission is hereby granted, free of charge, to any person obtaining a
11copy of this software and associated documentation files (the "Software"),
12to deal in the Software without restriction, including without limitation
13the rights to use, copy, modify, merge, publish, distribute, sublicense,
14and/or sell copies of the Software, and to permit persons to whom the
15Software is furnished to do so, subject to the following conditions:
16
17The above copyright notice and this permission notice (including the next
18paragraph) shall be included in all copies or substantial portions of the
19Software.
20
21THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
22IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
23FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
24THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
25LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
26FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
27DEALINGS IN THE SOFTWARE.
28
29********************************************************/
30
31/*
32
33Copyright 1989, 1994, 1998  The Open Group
34
35Permission to use, copy, modify, distribute, and sell this software and its
36documentation for any purpose is hereby granted without fee, provided that
37the above copyright notice appear in all copies and that both that
38copyright notice and this permission notice appear in supporting
39documentation.
40
41The above copyright notice and this permission notice shall be included in
42all copies or substantial portions of the Software.
43
44THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
45IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
46FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
47OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
48AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
49CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
50
51Except as contained in this notice, the name of The Open Group shall not be
52used in advertising or otherwise to promote the sale, use or other dealings
53in this Software without prior written authorization from The Open Group.
54
55*/
56
57#ifdef HAVE_CONFIG_H
58#include <config.h>
59#endif
60#include "IntrinsicI.h"
61#include <X11/Xatom.h>
62
63/*      Function Name: XtSetWMColormapWindows
64 *
65 *      Description: Sets the value of the WM_COLORMAP_WINDOWS
66 *                   property on a widget's window.
67 *
68 *      Arguments:  widget - specifies the widget on whose window the
69 *                         - WM_COLORMAP_WINDOWS property will be stored.
70 *
71 *                  list - Specifies a list of widgets whose windows are to be
72 *                         listed in the WM_COLORMAP_WINDOWS property.
73 *                  count - Specifies the number of widgets in list.
74 *
75 *      Returns: none.
76 */
77
78void
79XtSetWMColormapWindows(Widget widget, Widget *list, Cardinal count)
80{
81    Window *data;
82    Widget *checked, *top, *temp, hookobj;
83    Cardinal i, j, checked_count;
84    Boolean match;
85    Atom xa_wm_colormap_windows;
86
87    WIDGET_TO_APPCON(widget);
88
89    LOCK_APP(app);
90    if (!XtIsRealized(widget) || (count == 0)) {
91        UNLOCK_APP(app);
92        return;
93    }
94
95    top = checked = XtMallocArray(count, (Cardinal) sizeof(Widget));
96
97/*
98 * The specification calls for only adding the windows that have unique
99 * colormaps to the property to this function, so we will make a pass through
100 * the widget list removing all the widgets with non-unique colormaps.
101 *
102 * We will also remove any unrealized widgets from the list at this time.
103 */
104
105    for (checked_count = 0, i = 0; i < count; i++) {
106        if (!XtIsRealized(list[i]))
107            continue;
108
109        *checked = list[i];
110        match = FALSE;
111
112/*
113 * Don't check first element for matching colormap since there is nothing
114 * to check it against.
115 */
116
117        if (checked != top)
118            for (j = 0, temp = top; j < checked_count; j++, temp++)
119                if ((*temp)->core.colormap == (*checked)->core.colormap) {
120                    match = TRUE;
121                    break;
122                }
123
124/*
125 * If no colormap was found to match then add this widget to the linked list.
126 */
127
128        if (!match) {
129            checked++;
130            checked_count++;
131        }
132    }
133
134/*
135 * Now that we have the list of widgets we need to convert it to a list of
136 * windows and set the property.
137 */
138
139    data = XtMallocArray(checked_count, (Cardinal) sizeof(Window));
140
141    for (i = 0; i < checked_count; i++)
142        data[i] = XtWindow(top[i]);
143
144    xa_wm_colormap_windows = XInternAtom(XtDisplay(widget),
145                                         "WM_COLORMAP_WINDOWS", FALSE);
146
147    XChangeProperty(XtDisplay(widget), XtWindow(widget),
148                    xa_wm_colormap_windows, XA_WINDOW, 32,
149                    PropModeReplace, (unsigned char *) data, (int) i);
150
151    hookobj = XtHooksOfDisplay(XtDisplay(widget));
152    if (XtHasCallbacks(hookobj, XtNchangeHook) == XtCallbackHasSome) {
153        XtChangeHookDataRec call_data;
154
155        call_data.type = XtHsetWMColormapWindows;
156        call_data.widget = widget;
157        call_data.event_data = (XtPointer) list;
158        call_data.num_event_data = count;
159        XtCallCallbackList(hookobj,
160                           ((HookObject) hookobj)->hooks.changehook_callbacks,
161                           (XtPointer) &call_data);
162    }
163
164    XtFree((char *) data);
165    XtFree((char *) top);
166    UNLOCK_APP(app);
167}
168