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Diffstat (limited to 'src/BaseDisplay.cc')
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1 | // BaseDisplay.cc for Fluxbox Window manager | ||
2 | // Copyright (c) 2001 - 2003 Henrik Kinnunen (fluxgen(at)linuxmail.org) | ||
3 | // | ||
4 | // BaseDisplay.cc for Blackbox - an X11 Window manager | ||
5 | // Copyright (c) 1997 - 2000 Brad Hughes (bhughes@tcac.net) | ||
6 | // | ||
7 | // Permission is hereby granted, free of charge, to any person obtaining a | ||
8 | // copy of this software and associated documentation files (the "Software"), | ||
9 | // to deal in the Software without restriction, including without limitation | ||
10 | // the rights to use, copy, modify, merge, publish, distribute, sublicense, | ||
11 | // and/or sell copies of the Software, and to permit persons to whom the | ||
12 | // Software is furnished to do so, subject to the following conditions: | ||
13 | // | ||
14 | // The above copyright notice and this permission notice shall be included in | ||
15 | // all copies or substantial portions of the Software. | ||
16 | // | ||
17 | // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
18 | // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
19 | // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | ||
20 | // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
21 | // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | ||
22 | // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | ||
23 | // DEALINGS IN THE SOFTWARE. | ||
24 | |||
25 | // $Id: BaseDisplay.cc,v 1.28 2003/05/07 11:43:03 fluxgen Exp $ | ||
26 | |||
27 | |||
28 | |||
29 | #include "BaseDisplay.hh" | ||
30 | #include "i18n.hh" | ||
31 | #include "Timer.hh" | ||
32 | |||
33 | #ifdef HAVE_CONFIG_H | ||
34 | #include "config.h" | ||
35 | #endif // HAVE_CONFIG_H | ||
36 | |||
37 | // use GNU extensions | ||
38 | #ifndef _GNU_SOURCE | ||
39 | #define _GNU_SOURCE | ||
40 | #endif // _GNU_SOURCE | ||
41 | |||
42 | #include <X11/Xutil.h> | ||
43 | |||
44 | #ifdef SHAPE | ||
45 | #include <X11/extensions/shape.h> | ||
46 | #endif // SHAPE | ||
47 | |||
48 | #ifdef HAVE_FCNTL_H | ||
49 | #include <fcntl.h> | ||
50 | #endif // HAVE_FCNTL_H | ||
51 | |||
52 | #include <cstdio> | ||
53 | #include <cstdlib> | ||
54 | #include <cstring> | ||
55 | |||
56 | #ifdef HAVE_UNISTD_H | ||
57 | #include <sys/types.h> | ||
58 | #include <unistd.h> | ||
59 | #endif // HAVE_UNISTD_H | ||
60 | |||
61 | #ifdef HAVE_SYS_SELECT_H | ||
62 | #include <sys/select.h> | ||
63 | #endif // HAVE_SYS_SELECT_H | ||
64 | |||
65 | #ifdef HAVE_SIGNAL_H | ||
66 | #include <signal.h> | ||
67 | #endif // HAVE_SIGNAL_H | ||
68 | |||
69 | #ifndef SA_NODEFER | ||
70 | #ifdef SA_INTERRUPT | ||
71 | #define SA_NODEFER SA_INTERRUPT | ||
72 | #else // !SA_INTERRUPT | ||
73 | #define SA_NODEFER (0) | ||
74 | #endif // SA_INTERRUPT | ||
75 | #endif // SA_NODEFER | ||
76 | |||
77 | #ifdef HAVE_SYS_WAIT_H | ||
78 | #include <sys/types.h> | ||
79 | #include <sys/wait.h> | ||
80 | #endif // HAVE_SYS_WAIT_H | ||
81 | |||
82 | #if defined(HAVE_PROCESS_H) && defined(__EMX__) | ||
83 | #include <process.h> | ||
84 | #endif // HAVE_PROCESS_H && __EMX__ | ||
85 | |||
86 | #include <iostream> | ||
87 | using namespace std; | ||
88 | |||
89 | // X error handler to handle any and all X errors while the application is | ||
90 | // running | ||
91 | static Bool internal_error = False; | ||
92 | static Window last_bad_window = None; | ||
93 | |||
94 | |||
95 | static int handleXErrors(Display *d, XErrorEvent *e) { | ||
96 | #ifdef DEBUG | ||
97 | char errtxt[128]; | ||
98 | |||
99 | XGetErrorText(d, e->error_code, errtxt, 128); | ||
100 | fprintf(stderr, | ||
101 | I18n::instance()-> | ||
102 | getMessage( | ||
103 | FBNLS::BaseDisplaySet, FBNLS::BaseDisplayXError, | ||
104 | "%s: X error: %s(%d) opcodes %d/%d\n resource 0x%lx\n"), | ||
105 | BaseDisplay::instance()->getApplicationName(), errtxt, e->error_code, | ||
106 | e->request_code, e->minor_code, e->resourceid); | ||
107 | |||
108 | #endif // !DEBUG | ||
109 | |||
110 | if (e->error_code == BadWindow) | ||
111 | last_bad_window = e->resourceid; | ||
112 | |||
113 | if (internal_error) | ||
114 | abort(); | ||
115 | |||
116 | return(False); | ||
117 | } | ||
118 | |||
119 | |||
120 | |||
121 | BaseDisplay *BaseDisplay::s_singleton = 0; | ||
122 | |||
123 | BaseDisplay::BaseDisplay(const char *app_name, const char *dpy_name):FbTk::App(dpy_name), | ||
124 | m_startup(true), m_shutdown(false), | ||
125 | m_display_name(XDisplayName(dpy_name)), m_app_name(app_name), | ||
126 | m_server_grabs(0) | ||
127 | { | ||
128 | if (s_singleton != 0) | ||
129 | throw string("Can't create more than one instance of BaseDisplay!"); | ||
130 | |||
131 | s_singleton = this; | ||
132 | |||
133 | last_bad_window = None; | ||
134 | I18n *i18n = I18n::instance(); | ||
135 | |||
136 | if (display() == 0) { | ||
137 | throw string("Can not connect to X server." | ||
138 | "Make sure you started X before you start Fluxbox and" | ||
139 | "that you do not have any other window manager running at the same time."); | ||
140 | /* | ||
141 | i18n-> | ||
142 | getMessage( | ||
143 | FBNLS::BaseDisplaySet, FBNLS::BaseDisplayXConnectFail, | ||
144 | "BaseDisplay::BaseDisplay: connection to X server failed.")); | ||
145 | */ | ||
146 | } else if (fcntl(ConnectionNumber(display()), F_SETFD, 1) == -1) { | ||
147 | throw string( | ||
148 | i18n-> | ||
149 | getMessage( | ||
150 | FBNLS::BaseDisplaySet, FBNLS::BaseDisplayCloseOnExecFail, | ||
151 | "BaseDisplay::BaseDisplay: couldn't mark display connection " | ||
152 | "as close-on-exec")); | ||
153 | |||
154 | } | ||
155 | |||
156 | |||
157 | number_of_screens = ScreenCount(display()); | ||
158 | |||
159 | #ifdef SHAPE | ||
160 | shape.extensions = XShapeQueryExtension(display(), &shape.event_basep, | ||
161 | &shape.error_basep); | ||
162 | #else // !SHAPE | ||
163 | shape.extensions = False; | ||
164 | #endif // SHAPE | ||
165 | |||
166 | |||
167 | XSetErrorHandler((XErrorHandler) handleXErrors); | ||
168 | |||
169 | for (int i = 0; i < number_of_screens; i++) { | ||
170 | ScreenInfo *screeninfo = new ScreenInfo(i); | ||
171 | screenInfoList.push_back(screeninfo); | ||
172 | } | ||
173 | } | ||
174 | |||
175 | |||
176 | BaseDisplay::~BaseDisplay() { | ||
177 | |||
178 | ScreenInfoList::iterator it = screenInfoList.begin(); | ||
179 | ScreenInfoList::iterator it_end = screenInfoList.end(); | ||
180 | for (; it != it_end; ++it) { | ||
181 | delete (*it); | ||
182 | } | ||
183 | |||
184 | s_singleton = 0; | ||
185 | } | ||
186 | |||
187 | BaseDisplay *BaseDisplay::instance() { | ||
188 | if (s_singleton == 0) | ||
189 | throw string("BaseDisplay not created!"); | ||
190 | |||
191 | return s_singleton; | ||
192 | } | ||
193 | |||
194 | void BaseDisplay::eventLoop() { | ||
195 | run(); | ||
196 | |||
197 | while ((! m_shutdown) && (! internal_error)) { | ||
198 | if (XPending(display())) { | ||
199 | XEvent e; | ||
200 | XNextEvent(display(), &e); | ||
201 | |||
202 | if (last_bad_window != None && e.xany.window == last_bad_window) { | ||
203 | #ifdef DEBUG | ||
204 | fprintf(stderr, | ||
205 | I18n::instance()-> | ||
206 | getMessage( | ||
207 | FBNLS::BaseDisplaySet, FBNLS::BaseDisplayBadWindowRemove, | ||
208 | "BaseDisplay::eventLoop(): removing bad window " | ||
209 | "from event queue\n")); | ||
210 | #endif // DEBUG | ||
211 | } else { | ||
212 | last_bad_window = None; | ||
213 | handleEvent(&e); | ||
214 | } | ||
215 | } else { | ||
216 | FbTk::Timer::updateTimers(ConnectionNumber(display())); //handle all timers | ||
217 | } | ||
218 | } | ||
219 | } | ||
220 | |||
221 | |||
222 | bool BaseDisplay::validateWindow(Window window) { | ||
223 | XEvent event; | ||
224 | if (XCheckTypedWindowEvent(display(), window, DestroyNotify, &event)) { | ||
225 | XPutBackEvent(display(), &event); | ||
226 | return false; | ||
227 | } | ||
228 | |||
229 | return true; | ||
230 | } | ||
231 | |||
232 | |||
233 | void BaseDisplay::grab() { | ||
234 | if (! m_server_grabs++) | ||
235 | XGrabServer(display()); | ||
236 | } | ||
237 | |||
238 | |||
239 | void BaseDisplay::ungrab() { | ||
240 | if (! --m_server_grabs) | ||
241 | XUngrabServer(display()); | ||
242 | if (m_server_grabs < 0) | ||
243 | m_server_grabs = 0; | ||
244 | } | ||
245 | |||
246 | ScreenInfo::ScreenInfo(int num) { | ||
247 | basedisplay = BaseDisplay::instance(); | ||
248 | Display * const disp = basedisplay->getXDisplay(); | ||
249 | screen_number = num; | ||
250 | |||
251 | root_window = RootWindow(disp, screen_number); | ||
252 | depth = DefaultDepth(disp, screen_number); | ||
253 | |||
254 | width = | ||
255 | WidthOfScreen(ScreenOfDisplay(disp, screen_number)); | ||
256 | height = | ||
257 | HeightOfScreen(ScreenOfDisplay(disp, screen_number)); | ||
258 | |||
259 | // search for a TrueColor Visual... if we can't find one... we will use the | ||
260 | // default visual for the screen | ||
261 | XVisualInfo vinfo_template, *vinfo_return; | ||
262 | int vinfo_nitems; | ||
263 | |||
264 | vinfo_template.screen = screen_number; | ||
265 | vinfo_template.c_class = TrueColor; | ||
266 | |||
267 | visual = (Visual *) 0; | ||
268 | |||
269 | if ((vinfo_return = XGetVisualInfo(disp, | ||
270 | VisualScreenMask | VisualClassMask, | ||
271 | &vinfo_template, &vinfo_nitems)) && | ||
272 | vinfo_nitems > 0) { | ||
273 | |||
274 | for (int i = 0; i < vinfo_nitems; i++) { | ||
275 | if (depth < (vinfo_return + i)->depth) { | ||
276 | depth = (vinfo_return + i)->depth; | ||
277 | visual = (vinfo_return + i)->visual; | ||
278 | } | ||
279 | } | ||
280 | |||
281 | XFree(vinfo_return); | ||
282 | } | ||
283 | |||
284 | if (visual) { | ||
285 | m_colormap = XCreateColormap(disp, root_window, | ||
286 | visual, AllocNone); | ||
287 | } else { | ||
288 | visual = DefaultVisual(disp, screen_number); | ||
289 | m_colormap = DefaultColormap(disp, screen_number); | ||
290 | } | ||
291 | |||
292 | #ifdef XINERAMA | ||
293 | // check if we have Xinerama extension enabled | ||
294 | if (XineramaIsActive(disp)) { | ||
295 | m_hasXinerama = true; | ||
296 | xineramaLastHead = 0; | ||
297 | xineramaInfos = | ||
298 | XineramaQueryScreens(disp, &xineramaNumHeads); | ||
299 | } else { | ||
300 | m_hasXinerama = false; | ||
301 | xineramaInfos = 0; // make sure we don't point anywhere we shouldn't | ||
302 | } | ||
303 | #endif // XINERAMA | ||
304 | } | ||
305 | |||
306 | ScreenInfo::~ScreenInfo() { | ||
307 | #ifdef XINERAMA | ||
308 | if (m_hasXinerama) { // only free if we first had it | ||
309 | XFree(xineramaInfos); | ||
310 | xineramaInfos = 0; | ||
311 | } | ||
312 | #endif // XINERAMA | ||
313 | } | ||
314 | |||
315 | #ifdef XINERAMA | ||
316 | |||
317 | /** | ||
318 | Searches for the head at the coordinates | ||
319 | x,y. If it fails or Xinerama isn't | ||
320 | activated it'll return head nr 0 | ||
321 | */ | ||
322 | unsigned int ScreenInfo::getHead(int x, int y) const { | ||
323 | |||
324 | // is Xinerama extensions enabled? | ||
325 | if (hasXinerama()) { | ||
326 | // check if last head is still active | ||
327 | /* if ((xineramaInfos[xineramaLastHead].x_org <= x) && | ||
328 | ((xineramaInfos[xineramaLastHead].x_org + | ||
329 | xineramaInfos[xineramaLastHead].width) > x) && | ||
330 | (xineramaInfos[xineramaLastHead].y_org <= y) && | ||
331 | ((xineramaInfos[xineramaLastHead].y_org + | ||
332 | xineramaInfos[xineramaLastHead].height) > y)) { | ||
333 | return xineramaLastHead; | ||
334 | } else { */ | ||
335 | // go trough all the heads, and search | ||
336 | for (int i = 0; (signed) i < xineramaNumHeads; i++) { | ||
337 | if (xineramaInfos[i].x_org <= x && | ||
338 | (xineramaInfos[i].x_org + xineramaInfos[i].width) > x && | ||
339 | xineramaInfos[i].y_org <= y && | ||
340 | (xineramaInfos[i].y_org + xineramaInfos[i].height) > y) | ||
341 | // return (xineramaLastHead = i); | ||
342 | return i; | ||
343 | } | ||
344 | // } | ||
345 | } | ||
346 | |||
347 | return 0; | ||
348 | } | ||
349 | |||
350 | /** | ||
351 | Searches for the head that the pointer | ||
352 | currently is on, if it isn't found | ||
353 | the first one is returned | ||
354 | */ | ||
355 | unsigned int ScreenInfo::getCurrHead(void) const { | ||
356 | |||
357 | // is Xinerama extensions enabled? | ||
358 | if (hasXinerama()) { | ||
359 | int x, y, wX, wY; | ||
360 | unsigned int mask; | ||
361 | Window rRoot, rChild; | ||
362 | // get pointer cordinates | ||
363 | if ( (XQueryPointer(basedisplay->getXDisplay(), root_window, | ||
364 | &rRoot, &rChild, &x, &y, &wX, &wY, &mask)) != 0 ) { | ||
365 | return getHead(x, y); | ||
366 | } | ||
367 | } | ||
368 | |||
369 | return 0; | ||
370 | } | ||
371 | |||
372 | /** | ||
373 | @return the width of head | ||
374 | */ | ||
375 | unsigned int ScreenInfo::getHeadWidth(unsigned int head) const { | ||
376 | |||
377 | if (hasXinerama()) { | ||
378 | if ((signed) head >= xineramaNumHeads) { | ||
379 | #ifdef DEBUG | ||
380 | cerr << __FILE__ << ":" <<__LINE__ << ": " << | ||
381 | "Head: " << head << " doesn't exist!" << endl; | ||
382 | #endif // DEBUG | ||
383 | return xineramaInfos[xineramaNumHeads - 1].width; | ||
384 | } else | ||
385 | return xineramaInfos[head].width; | ||
386 | } | ||
387 | |||
388 | return getWidth(); | ||
389 | |||
390 | } | ||
391 | |||
392 | /** | ||
393 | @return the heigt of head | ||
394 | */ | ||
395 | unsigned int ScreenInfo::getHeadHeight(unsigned int head) const { | ||
396 | |||
397 | if (hasXinerama()) { | ||
398 | if ((signed) head >= xineramaNumHeads) { | ||
399 | #ifdef DEBUG | ||
400 | cerr << __FILE__ << ":" <<__LINE__ << ": " << | ||
401 | "Head: " << head << " doesn't exist!" << endl; | ||
402 | #endif // DEBUG | ||
403 | return xineramaInfos[xineramaNumHeads - 1].height; | ||
404 | } else | ||
405 | return xineramaInfos[head].height; | ||
406 | } | ||
407 | |||
408 | return getHeight(); | ||
409 | } | ||
410 | |||
411 | |||
412 | /** | ||
413 | @return the X start of head nr head | ||
414 | */ | ||
415 | int ScreenInfo::getHeadX(unsigned int head) const { | ||
416 | if (hasXinerama()) { | ||
417 | if ((signed) head >= xineramaNumHeads) { | ||
418 | #ifdef DEBUG | ||
419 | cerr << __FILE__ << ":" <<__LINE__ << ": " << | ||
420 | "Head: " << head << " doesn't exist!" << endl; | ||
421 | #endif // DEBUG | ||
422 | return xineramaInfos[head = xineramaNumHeads - 1].x_org; | ||
423 | } else | ||
424 | return xineramaInfos[head].x_org; | ||
425 | } | ||
426 | |||
427 | return 0; | ||
428 | } | ||
429 | |||
430 | /** | ||
431 | @return the Y start of head | ||
432 | */ | ||
433 | int ScreenInfo::getHeadY(unsigned int head) const { | ||
434 | if (hasXinerama()) { | ||
435 | if ((signed) head >= xineramaNumHeads) { | ||
436 | #ifdef DEBUG | ||
437 | cerr << __FILE__ << ":" <<__LINE__ << ": " << | ||
438 | "Head: " << head << " doesn't exist!" << endl; | ||
439 | #endif // DEBUG | ||
440 | return xineramaInfos[xineramaNumHeads - 1].y_org; | ||
441 | } else | ||
442 | return xineramaInfos[head].y_org; | ||
443 | } | ||
444 | |||
445 | return 0; | ||
446 | } | ||
447 | |||
448 | #endif // XINERAMA | ||