wmbiff: fixed possible null-pointer dereference.
[dockapps.git] / wmcalendar / Src / dockapp.c
blob3ae5963a4a98ed825becc43fec232c438b1ae34a
1 /*
2 * Copyright (c) 1999 Alfredo K. Kojima
3 * Copyright (c) 2001, 2002 Seiichi SATO <ssato@sh.rim.or.jp>
5 * Permission is hereby granted, free of charge, to any person obtaining a copy
6 * of this software and associated documentation files (the "Software"), to deal
7 * in the Software without restriction, including without limitation the rights
8 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
9 * copies of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 * AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
19 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
20 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22 * This code is based on libdockapp-0.4.0
23 * modified by Seiichi SATO <ssato@sh.rim.or.jp>
26 #include "dockapp.h"
28 #define WINDOWED_SIZE_W 64
29 #define WINDOWED_SIZE_H 64
31 /* global */
32 Display *display = NULL;
33 Bool dockapp_iswindowed = False;
34 Bool dockapp_isbrokenwm = False;
36 /* private */
37 static Window window = None;
38 static Window icon_window = None;
39 static GC gc = NULL;
40 static int depth = 0;
41 static Atom delete_win;
42 static int width, height;
43 static int offset_w, offset_h;
45 void
46 dockapp_open_window(char *display_specified, char *appname,
47 unsigned w, unsigned h, int argc, char **argv)
49 XClassHint *classhint;
50 XWMHints *wmhints;
51 Status stat;
52 XTextProperty title;
53 XSizeHints sizehints;
54 Window root;
55 int ww, wh;
57 /* Open Connection to X Server */
58 display = XOpenDisplay(display_specified);
59 if (!display) {
60 fprintf(stderr, "%s: could not open display %s!\n", argv[0],
61 XDisplayName(display_specified));
62 exit(1);
64 root = DefaultRootWindow(display);
66 width = w;
67 height = h;
69 if (dockapp_iswindowed) {
70 offset_w = (WINDOWED_SIZE_W - w) / 2;
71 offset_h = (WINDOWED_SIZE_H - h) / 2;
72 ww = WINDOWED_SIZE_W;
73 wh = WINDOWED_SIZE_H;
74 } else {
75 offset_w = offset_h = 0;
76 ww = w;
77 wh = h;
80 /* Create Windows */
81 icon_window = XCreateSimpleWindow(display, root, 0, 0, ww, wh, 0, 0, 0);
82 if (dockapp_isbrokenwm) {
83 window = XCreateSimpleWindow(display, root, 0, 0, ww, wh, 0, 0, 0);
84 } else {
85 window = XCreateSimpleWindow(display, root, 0, 0, 1, 1, 0, 0, 0);
88 /* Set ClassHint */
89 classhint = XAllocClassHint();
90 if (classhint == NULL) {
91 fprintf(stderr, "%s: can't allocate memory for wm hints!\n", argv[0]);
92 exit(1);
94 classhint->res_class = "DockApp";
95 classhint->res_name = appname;
96 XSetClassHint(display, window, classhint);
97 XFree(classhint);
99 /* Set WMHints */
100 wmhints = XAllocWMHints();
101 if (wmhints == NULL) {
102 fprintf(stderr, "%s: can't allocate memory for wm hints!\n", argv[0]);
103 exit(1);
105 wmhints->flags = IconWindowHint | WindowGroupHint;
106 if (!dockapp_iswindowed) {
107 wmhints->flags |= StateHint;
108 wmhints->initial_state = WithdrawnState;
110 wmhints->window_group = window;
111 wmhints->icon_window = icon_window;
112 XSetWMHints(display, window, wmhints);
113 XFree(wmhints);
115 /* Set WM Protocols */
116 delete_win = XInternAtom(display, "WM_DELETE_WINDOW", False);
117 XSetWMProtocols (display, icon_window, &delete_win, 1);
119 /* Set Size Hints */
120 sizehints.flags = USSize;
121 if (!dockapp_iswindowed) {
122 sizehints.flags |= USPosition;
123 sizehints.x = sizehints.y = 0;
124 } else {
125 sizehints.flags |= PMinSize | PMaxSize;
126 sizehints.min_width = sizehints.max_width = WINDOWED_SIZE_W;
127 sizehints.min_height = sizehints.max_height = WINDOWED_SIZE_H;
129 sizehints.width = ww;
130 sizehints.height = wh;
131 XSetWMNormalHints(display, icon_window, &sizehints);
133 /* Set WindowTitle for AfterStep Wharf */
134 stat = XStringListToTextProperty(&appname, 1, &title);
135 XSetWMName(display, window, &title);
136 XSetWMName(display, icon_window, &title);
138 /* Set Command to start the app so it can be docked properly */
139 XSetCommand(display, window, argv, argc);
141 depth = DefaultDepth(display, DefaultScreen(display));
142 gc = DefaultGC(display, DefaultScreen(display));
144 XFlush(display);
147 void
148 dockapp_set_eventmask()
150 XSelectInput(display, icon_window,ButtonPressMask | ExposureMask | ButtonReleaseMask | PointerMotionMask | StructureNotifyMask );
151 XSelectInput(display, window,ButtonPressMask | ExposureMask | ButtonReleaseMask | PointerMotionMask | StructureNotifyMask);
155 static Pixmap
156 create_bg_pixmap(void)
158 Pixmap bg;
160 bg = XCreatePixmap(display, icon_window, WINDOWED_SIZE_W, WINDOWED_SIZE_H,
161 depth);
162 XSetForeground(display, gc, dockapp_getcolor("rgb:ae/aa/ae"));
163 XFillRectangle(display, bg, gc, 0, 0, WINDOWED_SIZE_W, WINDOWED_SIZE_H);
164 XSetForeground(display, gc, dockapp_getcolor("rgb:ff/ff/ff"));
165 XDrawLine(display, bg, gc, 0, 0, 0, 63);
166 XDrawLine(display, bg, gc, 1, 0, 1, 62);
167 XDrawLine(display, bg, gc, 2, 0, 63, 0);
168 XDrawLine(display, bg, gc, 2, 1, 62, 1);
169 XSetForeground(display, gc, dockapp_getcolor("rgb:52/55/52"));
170 XDrawLine(display, bg, gc, 1, 63, 63, 63);
171 XDrawLine(display, bg, gc, 2, 62, 63, 62);
172 XDrawLine(display, bg, gc, 63, 1, 63, 61);
173 XDrawLine(display, bg, gc, 62, 2, 62, 61);
175 return bg;
179 void
180 dockapp_set_background(Pixmap pixmap)
182 if (dockapp_iswindowed) {
183 Pixmap bg;
184 bg = create_bg_pixmap();
185 XCopyArea(display, pixmap, bg, gc, 0, 0, width, height,
186 offset_w, offset_w);
187 XSetWindowBackgroundPixmap(display, icon_window, bg);
188 XSetWindowBackgroundPixmap(display, window, bg);
189 XFreePixmap(display, bg);
190 } else {
191 XSetWindowBackgroundPixmap(display, icon_window, pixmap);
192 XSetWindowBackgroundPixmap(display, window, pixmap);
194 XClearWindow(display, icon_window);
195 XFlush(display);
199 void
200 dockapp_show(void)
202 if (!dockapp_iswindowed)
203 XMapRaised(display, window);
204 else
205 XMapRaised(display, icon_window);
207 XFlush(display);
211 Bool
212 dockapp_xpm2pixmap(char **data, Pixmap *pixmap, Pixmap *mask,
213 XpmColorSymbol * colorSymbol, unsigned int nsymbols)
215 XpmAttributes xpmAttr;
216 xpmAttr.valuemask = XpmCloseness;
217 xpmAttr.closeness = 40000;
219 if (nsymbols) {
220 xpmAttr.colorsymbols = colorSymbol;
221 xpmAttr.numsymbols = nsymbols;
222 xpmAttr.valuemask |= XpmColorSymbols;
225 if (XpmCreatePixmapFromData(display, icon_window, data, pixmap, mask, &xpmAttr) != 0)
226 return False;
228 return True;
232 Pixmap
233 dockapp_XCreatePixmap(int w, int h)
235 return (XCreatePixmap(display, icon_window, w, h, depth));
239 void
240 dockapp_setshape(Pixmap mask, int x_ofs, int y_ofs)
242 XShapeCombineMask(display, icon_window, ShapeBounding, -x_ofs, -y_ofs,
243 mask, ShapeSet);
244 XShapeCombineMask(display, window, ShapeBounding, -x_ofs, -y_ofs,
245 mask, ShapeSet);
246 XFlush(display);
250 void
251 dockapp_copyarea(Pixmap src, Pixmap dist, int x_src, int y_src, int w, int h,
252 int x_dist, int y_dist)
254 XCopyArea(display, src, dist, gc, x_src, y_src, w, h, x_dist, y_dist);
258 void
259 dockapp_copy2window (Pixmap src)
261 if (dockapp_isbrokenwm) {
262 XCopyArea(display, src, window, gc, 0, 0, width, height, offset_w,
263 offset_h);
264 } else {
265 XCopyArea(display, src, icon_window, gc, 0, 0, width, height, offset_w,
266 offset_h);
271 Bool
272 dockapp_nextevent_or_timeout(XEvent *event, unsigned long miliseconds)
274 struct timeval timeout;
275 fd_set rset;
277 XSync(display, False);
278 if (XPending(display)) {
279 XNextEvent(display, event);
280 return True;
283 timeout.tv_sec = miliseconds / 1000;
284 timeout.tv_usec = (miliseconds % 1000) * 1000;
286 FD_ZERO(&rset);
287 FD_SET(ConnectionNumber(display), &rset);
288 if (select(ConnectionNumber(display)+1, &rset, NULL, NULL, &timeout) > 0) {
289 XNextEvent(display, event);
290 if (event->type == ClientMessage) {
291 if (event->xclient.data.l[0] == delete_win) {
292 XDestroyWindow(display,event->xclient.window);
293 XCloseDisplay(display);
294 exit(0);
297 if (dockapp_iswindowed) {
298 event->xbutton.x -= offset_w;
299 event->xbutton.y -= offset_h;
301 return True;
304 return False;
308 unsigned long
309 dockapp_getcolor(char *color_name)
311 XColor color;
313 if (!XParseColor(display, DefaultColormap(display, DefaultScreen(display)),
314 color_name, &color))
315 fprintf(stderr, "can't parse color %s\n", color_name), exit(1);
317 if (!XAllocColor(display, DefaultColormap(display, DefaultScreen(display)),
318 &color)) {
319 fprintf(stderr, "can't allocate color %s. Using black\n", color_name);
320 return BlackPixel(display, DefaultScreen(display));
323 return color.pixel;
327 unsigned long
328 dockapp_blendedcolor(char *color_name, int r, int g, int b, float fac)
330 XColor color;
332 if ((r < -255 || r > 255)||(g < -255 || g > 255)||(b < -255 || b > 255)){
333 fprintf(stderr, "r:%d,g:%d,b:%d (r,g,b must be 0 to 255)", r, g, b);
334 exit(1);
337 r *= 255;
338 g *= 255;
339 b *= 255;
341 if (!XParseColor(display, DefaultColormap(display, DefaultScreen(display)),
342 color_name, &color))
343 fprintf(stderr, "can't parse color %s\n", color_name), exit(1);
345 if (!XAllocColor(display, DefaultColormap(display, DefaultScreen(display)),
346 &color)) {
347 fprintf(stderr, "can't allocate color %s. Using black\n", color_name);
348 return BlackPixel(display, DefaultScreen(display));
351 if (DefaultDepth(display, DefaultScreen(display)) < 16)
352 return color.pixel;
354 /* red */
355 if (color.red + r > 0xffff) {
356 color.red = 0xffff;
357 } else if (color.red + r < 0) {
358 color.red = 0;
359 } else {
360 color.red = (unsigned short)(fac * color.red + r);
363 /* green */
364 if (color.green + g > 0xffff) {
365 color.green = 0xffff;
366 } else if (color.green + g < 0) {
367 color.green = 0;
368 } else {
369 color.green = (unsigned short)(fac * color.green + g);
372 /* blue */
373 if (color.blue + b > 0xffff) {
374 color.blue = 0xffff;
375 } else if (color.blue + b < 0) {
376 color.blue = 0;
377 } else {
378 color.blue = (unsigned short)(fac * color.blue + b);
381 color.flags = DoRed | DoGreen | DoBlue;
383 if (!XAllocColor(display, DefaultColormap(display, DefaultScreen(display)),
384 &color)) {
385 fprintf(stderr, "can't allocate color %s. Using black\n", color_name);
386 return BlackPixel(display, DefaultScreen(display));
389 return color.pixel;