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comparison src/video/x11/SDL_x11events.c @ 1951:7177581dc9fa

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Initial work on X11 window code in.
author Sam Lantinga <slouken@libsdl.org>
date Thu, 27 Jul 2006 06:53:23 +0000
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children da8332c8f480
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1950:a344e42bce3b 1951:7177581dc9fa
1 /*
2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997-2006 Sam Lantinga
4
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with this library; if not, write to the Free Software
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18
19 Sam Lantinga
20 slouken@libsdl.org
21 */
22 #include "SDL_config.h"
23
24 #include "SDL_syswm.h"
25 #include "SDL_x11video.h"
26 #include "../../events/SDL_events_c.h"
27
28
29 static void
30 X11_DispatchEvent(_THIS)
31 {
32 SDL_VideoData *videodata = (SDL_VideoData *) _this->driverdata;
33 SDL_WindowData *data;
34 XEvent xevent;
35 int i;
36
37 SDL_zero(xevent); /* valgrind fix. --ryan. */
38 XNextEvent(videodata->display, &xevent);
39
40 /* Send a SDL_SYSWMEVENT if the application wants them */
41 if (SDL_ProcessEvents[SDL_SYSWMEVENT] == SDL_ENABLE) {
42 SDL_SysWMmsg wmmsg;
43
44 SDL_VERSION(&wmmsg.version);
45 wmmsg.subsystem = SDL_SYSWM_X11;
46 wmmsg.event.xevent = xevent;
47 SDL_SendSysWMEvent(&wmmsg);
48 }
49
50 data = NULL;
51 for (i = 0; i < videodata->numwindows; ++i) {
52 if (videodata->windowlist[i]->window == xevent.xany.window) {
53 data = videodata->windowlist[i];
54 }
55 }
56 if (!data) {
57 return;
58 }
59
60 switch (xevent.type) {
61
62 /* Gaining mouse coverage? */
63 case EnterNotify:{
64 #ifdef DEBUG_XEVENTS
65 printf("EnterNotify! (%d,%d)\n", xevent.xcrossing.x,
66 xevent.xcrossing.y);
67 if (xevent.xcrossing.mode == NotifyGrab)
68 printf("Mode: NotifyGrab\n");
69 if (xevent.xcrossing.mode == NotifyUngrab)
70 printf("Mode: NotifyUngrab\n");
71 #endif
72 if ((xevent.xcrossing.mode != NotifyGrab) &&
73 (xevent.xcrossing.mode != NotifyUngrab)) {
74 SDL_SetMouseFocus(videodata->mouse, data->windowID);
75 SDL_SendMouseMotion(videodata->mouse, 0, xevent.xcrossing.x,
76 xevent.xcrossing.y);
77 }
78 }
79 break;
80
81 /* Losing mouse coverage? */
82 case LeaveNotify:{
83 #ifdef DEBUG_XEVENTS
84 printf("LeaveNotify! (%d,%d)\n", xevent.xcrossing.x,
85 xevent.xcrossing.y);
86 if (xevent.xcrossing.mode == NotifyGrab)
87 printf("Mode: NotifyGrab\n");
88 if (xevent.xcrossing.mode == NotifyUngrab)
89 printf("Mode: NotifyUngrab\n");
90 #endif
91 if ((xevent.xcrossing.mode != NotifyGrab) &&
92 (xevent.xcrossing.mode != NotifyUngrab) &&
93 (xevent.xcrossing.detail != NotifyInferior)) {
94 SDL_SendMouseMotion(videodata->mouse, 0,
95 xevent.xcrossing.x, xevent.xcrossing.y);
96 SDL_SetMouseFocus(videodata->mouse, 0);
97 }
98 }
99 break;
100
101 /* Gaining input focus? */
102 case FocusIn:{
103 #ifdef DEBUG_XEVENTS
104 printf("FocusIn!\n");
105 #endif
106 SDL_SetKeyboardFocus(videodata->keyboard, data->windowID);
107 #ifdef X_HAVE_UTF8_STRING
108 if (data->ic) {
109 XSetICFocus(data->ic);
110 }
111 #endif
112 }
113 break;
114
115 /* Losing input focus? */
116 case FocusOut:{
117 #ifdef DEBUG_XEVENTS
118 printf("FocusOut!\n");
119 #endif
120 SDL_SetKeyboardFocus(videodata->keyboard, 0);
121 #ifdef X_HAVE_UTF8_STRING
122 if (data->ic) {
123 XUnsetICFocus(data->ic);
124 }
125 #endif
126 }
127 break;
128
129 /* Generated upon EnterWindow and FocusIn */
130 case KeymapNotify:{
131 #ifdef DEBUG_XEVENTS
132 printf("KeymapNotify!\n");
133 #endif
134 /* FIXME:
135 X11_SetKeyboardState(SDL_Display, xevent.xkeymap.key_vector);
136 */
137 }
138 break;
139
140 /* Mouse motion? */
141 case MotionNotify:{
142 #ifdef DEBUG_MOTION
143 printf("X11 motion: %d,%d\n", xevent.xmotion.x, xevent.xmotion.y);
144 #endif
145 SDL_SendMouseMotion(videodata->mouse, 0, xevent.xmotion.x,
146 xevent.xmotion.y);
147 }
148 break;
149
150 /* Mouse button press? */
151 case ButtonPress:{
152 SDL_SendMouseButton(videodata->mouse, SDL_PRESSED,
153 xevent.xbutton.button);
154 }
155 break;
156
157 /* Mouse button release? */
158 case ButtonRelease:{
159 SDL_SendMouseButton(videodata->mouse, SDL_RELEASED,
160 xevent.xbutton.button);
161 }
162 break;
163
164 /* Key press? */
165 case KeyPress:{
166 #if 0 /* FIXME */
167 static SDL_keysym saved_keysym;
168 SDL_keysym keysym;
169 KeyCode keycode = xevent.xkey.keycode;
170
171 #ifdef DEBUG_XEVENTS
172 printf("KeyPress (X11 keycode = 0x%X)\n", xevent.xkey.keycode);
173 #endif
174 /* Get the translated SDL virtual keysym */
175 if (keycode) {
176 keysym.scancode = keycode;
177 keysym.sym = X11_TranslateKeycode(SDL_Display, keycode);
178 keysym.mod = KMOD_NONE;
179 keysym.unicode = 0;
180 } else {
181 keysym = saved_keysym;
182 }
183
184 /* If we're not doing translation, we're done! */
185 if (!SDL_TranslateUNICODE) {
186 posted = SDL_PrivateKeyboard(SDL_PRESSED, &keysym);
187 break;
188 }
189
190 if (XFilterEvent(&xevent, None)) {
191 if (xevent.xkey.keycode) {
192 posted = SDL_PrivateKeyboard(SDL_PRESSED, &keysym);
193 } else {
194 /* Save event to be associated with IM text
195 In 1.3 we'll have a text event instead.. */
196 saved_keysym = keysym;
197 }
198 break;
199 }
200
201 /* Look up the translated value for the key event */
202 #ifdef X_HAVE_UTF8_STRING
203 if (data->ic != NULL) {
204 static Status state;
205 /* A UTF-8 character can be at most 6 bytes */
206 char keybuf[6];
207 if (Xutf8LookupString(data->ic, &xevent.xkey,
208 keybuf, sizeof(keybuf), NULL, &state)) {
209 keysym.unicode = Utf8ToUcs4((Uint8 *) keybuf);
210 }
211 } else
212 #endif
213 {
214 static XComposeStatus state;
215 char keybuf[32];
216
217 if (XLookupString(&xevent.xkey,
218 keybuf, sizeof(keybuf), NULL, &state)) {
219 /*
220 * FIXME: XLookupString() may yield more than one
221 * character, so we need a mechanism to allow for
222 * this (perhaps null keypress events with a
223 * unicode value)
224 */
225 keysym.unicode = (Uint8) keybuf[0];
226 }
227 }
228 posted = SDL_PrivateKeyboard(SDL_PRESSED, &keysym);
229 #endif // 0
230 }
231 break;
232
233 /* Key release? */
234 case KeyRelease:{
235 #if 0 /* FIXME */
236 SDL_keysym keysym;
237 KeyCode keycode = xevent.xkey.keycode;
238
239 #ifdef DEBUG_XEVENTS
240 printf("KeyRelease (X11 keycode = 0x%X)\n", xevent.xkey.keycode);
241 #endif
242 /* Check to see if this is a repeated key */
243 if (X11_KeyRepeat(SDL_Display, &xevent)) {
244 break;
245 }
246
247 /* Get the translated SDL virtual keysym */
248 keysym.scancode = keycode;
249 keysym.sym = X11_TranslateKeycode(SDL_Display, keycode);
250 keysym.mod = KMOD_NONE;
251 keysym.unicode = 0;
252
253 posted = SDL_PrivateKeyboard(SDL_RELEASED, &keysym);
254 #endif // 0
255 }
256 break;
257
258 /* Have we been iconified? */
259 case UnmapNotify:{
260 #ifdef DEBUG_XEVENTS
261 printf("UnmapNotify!\n");
262 #endif
263 SDL_SendWindowEvent(data->windowID, SDL_WINDOWEVENT_HIDDEN, 0, 0);
264 SDL_SendWindowEvent(data->windowID, SDL_WINDOWEVENT_MINIMIZED, 0,
265 0);
266 }
267 break;
268
269 /* Have we been restored? */
270 case MapNotify:{
271 #ifdef DEBUG_XEVENTS
272 printf("MapNotify!\n");
273 #endif
274 SDL_SendWindowEvent(data->windowID, SDL_WINDOWEVENT_SHOWN, 0, 0);
275 SDL_SendWindowEvent(data->windowID, SDL_WINDOWEVENT_RESTORED, 0,
276 0);
277 }
278 break;
279
280 /* Have we been resized or moved? */
281 case ConfigureNotify:{
282 #ifdef DEBUG_XEVENTS
283 printf("ConfigureNotify! (resize: %dx%d)\n",
284 xevent.xconfigure.width, xevent.xconfigure.height);
285 #endif
286 SDL_SendWindowEvent(data->windowID, SDL_WINDOWEVENT_MOVED,
287 xevent.xconfigure.x, xevent.xconfigure.y);
288 SDL_SendWindowEvent(data->windowID, SDL_WINDOWEVENT_RESIZED,
289 xevent.xconfigure.width,
290 xevent.xconfigure.height);
291 }
292 break;
293
294 /* Have we been requested to quit (or another client message?) */
295 case ClientMessage:{
296 if ((xevent.xclient.format == 32) &&
297 (xevent.xclient.data.l[0] == videodata->WM_DELETE_WINDOW)) {
298
299 SDL_SendWindowEvent(data->windowID, SDL_WINDOWEVENT_CLOSE, 0,
300 0);
301 }
302 }
303 break;
304
305 /* Do we need to refresh ourselves? */
306 case Expose:{
307 #ifdef DEBUG_XEVENTS
308 printf("Expose (count = %d)\n", xevent.xexpose.count);
309 #endif
310 SDL_SendWindowEvent(data->windowID, SDL_WINDOWEVENT_EXPOSED, 0,
311 0);
312 }
313 break;
314
315 default:{
316 #ifdef DEBUG_XEVENTS
317 printf("Unhandled event %d\n", xevent.type);
318 #endif
319 }
320 break;
321 }
322 }
323
324 /* Ack! XPending() actually performs a blocking read if no events available */
325 int
326 X11_Pending(Display * display)
327 {
328 /* Flush the display connection and look to see if events are queued */
329 XFlush(display);
330 if (XEventsQueued(display, QueuedAlready)) {
331 return (1);
332 }
333
334 /* More drastic measures are required -- see if X is ready to talk */
335 {
336 static struct timeval zero_time; /* static == 0 */
337 int x11_fd;
338 fd_set fdset;
339
340 x11_fd = ConnectionNumber(display);
341 FD_ZERO(&fdset);
342 FD_SET(x11_fd, &fdset);
343 if (select(x11_fd + 1, &fdset, NULL, NULL, &zero_time) == 1) {
344 return (XPending(display));
345 }
346 }
347
348 /* Oh well, nothing is ready .. */
349 return (0);
350 }
351
352 void
353 X11_PumpEvents(_THIS)
354 {
355 SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
356
357 /* Keep processing pending events */
358 while (X11_Pending(data->display)) {
359 X11_DispatchEvent(_this);
360 }
361 }
362
363 void
364 X11_SaveScreenSaver(Display * display, int *saved_timeout, BOOL * dpms)
365 {
366 int timeout, interval, prefer_blank, allow_exp;
367 XGetScreenSaver(display, &timeout, &interval, &prefer_blank, &allow_exp);
368 *saved_timeout = timeout;
369
370 #if SDL_VIDEO_DRIVER_X11_DPMS
371 if (SDL_X11_HAVE_DPMS) {
372 int dummy;
373 if (DPMSQueryExtension(display, &dummy, &dummy)) {
374 CARD16 state;
375 DPMSInfo(display, &state, dpms);
376 }
377 }
378 #else
379 *dpms = 0;
380 #endif /* SDL_VIDEO_DRIVER_X11_DPMS */
381 }
382
383 void
384 X11_DisableScreenSaver(Display * display)
385 {
386 int timeout, interval, prefer_blank, allow_exp;
387 XGetScreenSaver(display, &timeout, &interval, &prefer_blank, &allow_exp);
388 timeout = 0;
389 XSetScreenSaver(display, timeout, interval, prefer_blank, allow_exp);
390
391 #if SDL_VIDEO_DRIVER_X11_DPMS
392 if (SDL_X11_HAVE_DPMS) {
393 int dummy;
394 if (DPMSQueryExtension(display, &dummy, &dummy)) {
395 DPMSDisable(display);
396 }
397 }
398 #endif /* SDL_VIDEO_DRIVER_X11_DPMS */
399 }
400
401 void
402 X11_RestoreScreenSaver(Display * display, int saved_timeout, BOOL dpms)
403 {
404 int timeout, interval, prefer_blank, allow_exp;
405 XGetScreenSaver(display, &timeout, &interval, &prefer_blank, &allow_exp);
406 timeout = saved_timeout;
407 XSetScreenSaver(display, timeout, interval, prefer_blank, allow_exp);
408
409 #if SDL_VIDEO_DRIVER_X11_DPMS
410 if (SDL_X11_HAVE_DPMS) {
411 int dummy;
412 if (DPMSQueryExtension(display, &dummy, &dummy)) {
413 if (dpms) {
414 DPMSEnable(display);
415 }
416 }
417 }
418 #endif /* SDL_VIDEO_DRIVER_X11_DPMS */
419 }
420
421 /* vi: set ts=4 sw=4 expandtab: */