Commit | Line | Data |
---|---|---|
a09e091a JB |
1 | /* |
2 | * Copyright 2001-2003 Red Hat Inc., Durham, North Carolina. | |
3 | * | |
4 | * All Rights Reserved. | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining | |
7 | * a copy of this software and associated documentation files (the | |
8 | * "Software"), to deal in the Software without restriction, including | |
9 | * without limitation on the rights to use, copy, modify, merge, | |
10 | * publish, distribute, sublicense, and/or sell copies of the Software, | |
11 | * and to permit persons to whom the Software is furnished to do so, | |
12 | * subject to the following conditions: | |
13 | * | |
14 | * The above copyright notice and this permission notice (including the | |
15 | * next paragraph) shall be included in all copies or substantial | |
16 | * portions of the Software. | |
17 | * | |
18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
19 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
20 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
21 | * NON-INFRINGEMENT. IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS | |
22 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
23 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
24 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
25 | * SOFTWARE. | |
26 | */ | |
27 | ||
28 | /* | |
29 | * Authors: | |
30 | * David H. Dawes <dawes@xfree86.org> | |
31 | * Kevin E. Martin <kem@redhat.com> | |
32 | * Rickard E. (Rik) Faith <faith@redhat.com> | |
33 | */ | |
34 | ||
35 | /** \file | |
36 | * These routines support taking input from devices on the backend | |
37 | * (output) displays. \see dmxcommon.c. */ | |
38 | ||
39 | #ifdef HAVE_DMX_CONFIG_H | |
40 | #include <dmx-config.h> | |
41 | #endif | |
42 | ||
43 | #define DMX_BACKEND_DEBUG 0 | |
44 | ||
45 | #include "dmxinputinit.h" | |
46 | #include "dmxbackend.h" | |
47 | #include "dmxcommon.h" | |
48 | #include "dmxconsole.h" | |
49 | #include "dmxcursor.h" | |
50 | #include "dmxprop.h" | |
51 | #include "dmxsync.h" | |
52 | #include "dmxcb.h" /* For dmxGlobalWidth and dmxGlobalHeight */ | |
53 | #include "dmxevents.h" /* For dmxGetGlobalPosition */ | |
54 | #include "ChkNotMaskEv.h" | |
55 | ||
56 | #include "inputstr.h" | |
57 | #include "input.h" | |
58 | #include <X11/keysym.h> | |
59 | #include "mipointer.h" | |
60 | #include "scrnintstr.h" | |
61 | #include "windowstr.h" | |
62 | ||
63 | /* Private area for backend devices. */ | |
64 | typedef struct _myPrivate { | |
65 | DMX_COMMON_PRIVATE; | |
66 | int myScreen; | |
67 | DMXScreenInfo *grabbedScreen; | |
68 | ||
69 | int lastX, lastY; | |
70 | int centerX, centerY; | |
71 | int relative; | |
72 | int newscreen; | |
73 | int initialized; | |
74 | DevicePtr mou, kbd; | |
75 | int entered; | |
76 | int offX, offY; | |
77 | } myPrivate; | |
78 | ||
79 | #if DMX_BACKEND_DEBUG | |
80 | #define DMXDBG0(f) dmxLog(dmxDebug,f) | |
81 | #define DMXDBG1(f,a) dmxLog(dmxDebug,f,a) | |
82 | #define DMXDBG2(f,a,b) dmxLog(dmxDebug,f,a,b) | |
83 | #define DMXDBG3(f,a,b,c) dmxLog(dmxDebug,f,a,b,c) | |
84 | #define DMXDBG4(f,a,b,c,d) dmxLog(dmxDebug,f,a,b,c,d) | |
85 | #define DMXDBG5(f,a,b,c,d,e) dmxLog(dmxDebug,f,a,b,c,d,e) | |
86 | #define DMXDBG6(f,a,b,c,d,e,g) dmxLog(dmxDebug,f,a,b,c,d,e,g) | |
87 | #define DMXDBG7(f,a,b,c,d,e,g,h) dmxLog(dmxDebug,f,a,b,c,d,e,g,h) | |
88 | #define DMXDBG8(f,a,b,c,d,e,g,h,i) dmxLog(dmxDebug,f,a,b,c,d,e,g,h,i) | |
89 | #define DMXDBG9(f,a,b,c,d,e,g,h,i,j) dmxLog(dmxDebug,f,a,b,c,d,e,g,h,i,j) | |
90 | #else | |
91 | #define DMXDBG0(f) | |
92 | #define DMXDBG1(f,a) | |
93 | #define DMXDBG2(f,a,b) | |
94 | #define DMXDBG3(f,a,b,c) | |
95 | #define DMXDBG4(f,a,b,c,d) | |
96 | #define DMXDBG5(f,a,b,c,d,e) | |
97 | #define DMXDBG6(f,a,b,c,d,e,g) | |
98 | #define DMXDBG7(f,a,b,c,d,e,g,h) | |
99 | #define DMXDBG8(f,a,b,c,d,e,g,h,i) | |
100 | #define DMXDBG9(f,a,b,c,d,e,g,h,i,j) | |
101 | #endif | |
102 | ||
103 | /** Create and return a private data structure. */ | |
104 | pointer | |
105 | dmxBackendCreatePrivate(DeviceIntPtr pDevice) | |
106 | { | |
107 | GETDMXLOCALFROMPDEVICE; | |
108 | myPrivate *priv = calloc(1, sizeof(*priv)); | |
109 | ||
110 | priv->dmxLocal = dmxLocal; | |
111 | return priv; | |
112 | } | |
113 | ||
114 | /** Destroy the private data structure. No checking is performed to | |
115 | * verify that the structure was actually created by | |
116 | * #dmxBackendCreatePrivate. */ | |
117 | void | |
118 | dmxBackendDestroyPrivate(pointer private) | |
119 | { | |
120 | free(private); | |
121 | } | |
122 | ||
123 | static void * | |
124 | dmxBackendTestScreen(DMXScreenInfo * dmxScreen, void *closure) | |
125 | { | |
126 | long target = (long) closure; | |
127 | ||
128 | if (dmxScreen->index == target) | |
129 | return dmxScreen; | |
130 | return NULL; | |
131 | } | |
132 | ||
133 | /* Return non-zero if screen and priv->myScreen are on the same physical | |
134 | * backend display (1 if they are the same screen, 2 if they are | |
135 | * different screens). Since this is a common operation, the results | |
136 | * are cached. The cache is invalidated if \a priv is NULL (this should | |
137 | * be done with each server generation and reconfiguration). */ | |
138 | static int | |
139 | dmxBackendSameDisplay(myPrivate * priv, long screen) | |
140 | { | |
141 | static myPrivate *oldpriv = NULL; | |
142 | static int oldscreen = -1; | |
143 | static int retcode = 0; | |
144 | ||
145 | if (priv == oldpriv && screen == oldscreen) | |
146 | return retcode; | |
147 | if (!priv) { /* Invalidate cache */ | |
148 | oldpriv = NULL; | |
149 | oldscreen = -1; | |
150 | retcode = 0; | |
151 | return 0; | |
152 | } | |
153 | ||
154 | if (screen == priv->myScreen) | |
155 | retcode = 1; | |
156 | else if (screen < 0 || screen >= dmxNumScreens) | |
157 | retcode = 0; | |
158 | else if (dmxPropertyIterate(priv->be, | |
159 | dmxBackendTestScreen, (void *) screen)) | |
160 | retcode = 2; | |
161 | else | |
162 | retcode = 0; | |
163 | ||
164 | oldpriv = priv; | |
165 | oldscreen = screen; | |
166 | return retcode; | |
167 | } | |
168 | ||
169 | static void * | |
170 | dmxBackendTestEvents(DMXScreenInfo * dmxScreen, void *closure) | |
171 | { | |
172 | XEvent *X = (XEvent *) closure; | |
173 | ||
174 | if (XCheckNotMaskEvent(dmxScreen->beDisplay, ExposureMask, X)) | |
175 | return dmxScreen; | |
176 | return NULL; | |
177 | } | |
178 | ||
179 | static void * | |
180 | dmxBackendTestMotionEvent(DMXScreenInfo * dmxScreen, void *closure) | |
181 | { | |
182 | XEvent *X = (XEvent *) closure; | |
183 | ||
184 | if (XCheckTypedEvent(dmxScreen->beDisplay, MotionNotify, X)) | |
185 | return dmxScreen; | |
186 | return NULL; | |
187 | } | |
188 | ||
189 | static DMXScreenInfo * | |
190 | dmxBackendGetEvent(myPrivate * priv, XEvent * X) | |
191 | { | |
192 | DMXScreenInfo *dmxScreen; | |
193 | ||
194 | if ((dmxScreen = dmxPropertyIterate(priv->be, dmxBackendTestEvents, X))) | |
195 | return dmxScreen; | |
196 | return NULL; | |
197 | } | |
198 | ||
199 | static DMXScreenInfo * | |
200 | dmxBackendPendingMotionEvent(myPrivate * priv, int save) | |
201 | { | |
202 | DMXScreenInfo *dmxScreen; | |
203 | XEvent N; | |
204 | ||
205 | if ((dmxScreen = dmxPropertyIterate(priv->be, | |
206 | dmxBackendTestMotionEvent, &N))) { | |
207 | if (save) | |
208 | XPutBackEvent(dmxScreen->beDisplay, &N); | |
209 | return dmxScreen; | |
210 | } | |
211 | return NULL; | |
212 | } | |
213 | ||
214 | static void * | |
215 | dmxBackendTestWindow(DMXScreenInfo * dmxScreen, void *closure) | |
216 | { | |
217 | Window win = (Window) (long) closure; | |
218 | ||
219 | if (dmxScreen->scrnWin == win) | |
220 | return dmxScreen; | |
221 | return NULL; | |
222 | } | |
223 | ||
224 | static DMXScreenInfo * | |
225 | dmxBackendFindWindow(myPrivate * priv, Window win) | |
226 | { | |
227 | return dmxPropertyIterate(priv->be, dmxBackendTestWindow, | |
228 | (void *) (long) win); | |
229 | } | |
230 | ||
231 | /* If the cursor is over a set of overlapping screens and one of those | |
232 | * screens takes backend input, then we want that particular screen to | |
233 | * be current, not one of the other ones. */ | |
234 | static int | |
235 | dmxBackendFindOverlapping(myPrivate * priv, int screen, int x, int y) | |
236 | { | |
237 | DMXScreenInfo *start = &dmxScreens[screen]; | |
238 | DMXScreenInfo *pt; | |
239 | ||
240 | if (!start->over) | |
241 | return screen; | |
242 | ||
243 | for (pt = start->over; /* condition at end of loop */ ; pt = pt->over) { | |
244 | if (pt->index == priv->myScreen | |
245 | && dmxOnScreen(x, y, &dmxScreens[pt->index])) | |
246 | return pt->index; | |
247 | if (pt == start) | |
248 | break; | |
249 | } | |
250 | return screen; | |
251 | } | |
252 | ||
253 | /* Return non-zero if \a x and \a y are off \a screen. */ | |
254 | static int | |
255 | dmxBackendOffscreen(int screen, int x, int y) | |
256 | { | |
257 | DMXScreenInfo *dmxScreen = &dmxScreens[screen]; | |
258 | ||
259 | return (!dmxOnScreen(x, y, dmxScreen)); | |
260 | } | |
261 | ||
262 | /** This routine is called from #dmxCoreMotion for each motion | |
263 | * event. \a x and \a y are global coordinants. */ | |
264 | void | |
265 | dmxBackendUpdatePosition(pointer private, int x, int y) | |
266 | { | |
267 | GETPRIVFROMPRIVATE; | |
268 | int screen = miPointerGetScreen(inputInfo.pointer)->myNum; | |
269 | DMXScreenInfo *dmxScreen = &dmxScreens[priv->myScreen]; | |
270 | int oldRelative = priv->relative; | |
271 | int topscreen = dmxBackendFindOverlapping(priv, screen, x, y); | |
272 | int same = dmxBackendSameDisplay(priv, topscreen); | |
273 | int offscreen = dmxBackendOffscreen(priv->myScreen, x, y); | |
274 | int offthis = dmxBackendOffscreen(screen, x, y); | |
275 | ||
276 | DMXDBG9("dmxBackendUpdatePosition(%d,%d) my=%d mi=%d rel=%d" | |
277 | " topscreen=%d same=%d offscreen=%d offthis=%d\n", | |
278 | x, y, priv->myScreen, screen, priv->relative, | |
279 | topscreen, same, offscreen, offthis); | |
280 | ||
281 | if (offscreen) { | |
282 | /* If the cursor is off the input screen, it should be moving | |
283 | * relative unless it is visible on a screen of the same display | |
284 | * (i.e., one that shares the mouse). */ | |
285 | if (same == 2 && !offthis) { | |
286 | if (priv->relative) { | |
287 | DMXDBG0(" Off screen, but not absolute\n"); | |
288 | priv->relative = 0; | |
289 | } | |
290 | } | |
291 | else { | |
292 | if (!priv->relative) { | |
293 | DMXDBG0(" Off screen, but not relative\n"); | |
294 | priv->relative = 1; | |
295 | } | |
296 | } | |
297 | } | |
298 | else { | |
299 | if (topscreen != screen) { | |
300 | DMXDBG2(" Using screen %d instead of %d (from mi)\n", | |
301 | topscreen, screen); | |
302 | } | |
303 | if (same) { | |
304 | if (priv->relative) { | |
305 | DMXDBG0(" On screen, but not absolute\n"); | |
306 | priv->relative = 0; | |
307 | } | |
308 | } | |
309 | else { | |
310 | if (!priv->relative) { | |
311 | DMXDBG0(" Not on screen, but not relative\n"); | |
312 | priv->relative = 1; | |
313 | } | |
314 | } | |
315 | } | |
316 | ||
317 | if (oldRelative != priv->relative) { | |
318 | DMXDBG2(" Do switch, relative=%d same=%d\n", priv->relative, same); | |
319 | /* Discard all pre-switch events */ | |
320 | dmxSync(dmxScreen, TRUE); | |
321 | while (dmxBackendPendingMotionEvent(priv, FALSE)); | |
322 | ||
323 | if (dmxInput->console && offscreen) { | |
324 | /* Our special case is a console window and a backend window | |
325 | * share a display. In this case, the cursor is either on | |
326 | * the backend window (taking absolute input), or not (in | |
327 | * which case the cursor needs to be in the console | |
328 | * window). */ | |
329 | if (priv->grabbedScreen) { | |
330 | DMXDBG2(" *** force ungrab on %s, display=%p\n", | |
331 | priv->grabbedScreen->name, | |
332 | priv->grabbedScreen->beDisplay); | |
333 | XUngrabPointer(priv->grabbedScreen->beDisplay, CurrentTime); | |
334 | dmxSync(priv->grabbedScreen, TRUE); | |
335 | priv->grabbedScreen = NULL; | |
336 | } | |
337 | DMXDBG0(" Capturing console\n"); | |
338 | dmxConsoleCapture(dmxInput); | |
339 | } | |
340 | else { | |
341 | priv->newscreen = 1; | |
342 | if (priv->relative && !dmxInput->console) { | |
343 | DMXDBG5(" Hide cursor; warp from %d,%d to %d,%d on %d\n", | |
344 | priv->lastX, priv->lastY, priv->centerX, priv->centerY, | |
345 | priv->myScreen); | |
346 | dmxConsoleUncapture(dmxInput); | |
347 | dmxHideCursor(dmxScreen); | |
348 | priv->lastX = priv->centerX; | |
349 | priv->lastY = priv->centerY; | |
350 | XWarpPointer(priv->display, None, priv->window, | |
351 | 0, 0, 0, 0, priv->lastX, priv->lastY); | |
352 | dmxSync(dmxScreen, TRUE); | |
353 | } | |
354 | else { | |
355 | DMXDBG0(" Check cursor\n"); | |
356 | dmxCheckCursor(); | |
357 | } | |
358 | } | |
359 | } | |
360 | } | |
361 | ||
362 | /** Get events from the X queue on the backend servers and put the | |
363 | * events into the DMX event queue. */ | |
364 | void | |
365 | dmxBackendCollectEvents(DevicePtr pDev, | |
366 | dmxMotionProcPtr motion, | |
367 | dmxEnqueueProcPtr enqueue, | |
368 | dmxCheckSpecialProcPtr checkspecial, DMXBlockType block) | |
369 | { | |
370 | GETPRIVFROMPDEV; | |
371 | GETDMXINPUTFROMPRIV; | |
372 | XEvent X; | |
373 | DMXScreenInfo *dmxScreen; | |
374 | int left = 0; | |
375 | int entered = priv->entered; | |
376 | int ignoreLeave = 0; | |
377 | int v[2]; | |
378 | int retcode; | |
379 | ||
380 | while ((dmxScreen = dmxBackendGetEvent(priv, &X))) { | |
381 | switch (X.type) { | |
382 | case EnterNotify: | |
383 | dmxCommonSaveState(priv); | |
384 | if (entered++) | |
385 | continue; | |
386 | priv->entered = 1; | |
387 | ignoreLeave = 1; | |
388 | DMXDBG5("dmxBackendCollectEvents: Enter %lu %d,%d; GRAB %s %p\n", | |
389 | X.xcrossing.root, X.xcrossing.x, X.xcrossing.y, | |
390 | dmxScreen->name, dmxScreen->beDisplay); | |
391 | XRaiseWindow(dmxScreen->beDisplay, dmxScreen->scrnWin); | |
392 | priv->grabbedScreen = dmxScreen; | |
393 | if ((retcode = XGrabPointer(dmxScreen->beDisplay, | |
394 | dmxScreen->scrnWin, | |
395 | True, 0, GrabModeAsync, | |
396 | GrabModeAsync, None, None, | |
397 | CurrentTime))) { | |
398 | dmxLog(dmxError, | |
399 | "XGrabPointer failed during backend enter (%d)\n", | |
400 | retcode); | |
401 | } | |
402 | break; | |
403 | case LeaveNotify: | |
404 | if (ignoreLeave) { | |
405 | ignoreLeave = 0; | |
406 | continue; | |
407 | } | |
408 | dmxCommonRestoreState(priv); | |
409 | if (left++) | |
410 | continue; | |
411 | DMXDBG7("dmxBackendCollectEvents: Leave %lu %d,%d %d %d %s %s\n", | |
412 | X.xcrossing.root, X.xcrossing.x, X.xcrossing.y, | |
413 | X.xcrossing.detail, X.xcrossing.focus, | |
414 | priv->grabbedScreen ? "UNGRAB" : "", dmxScreen->name); | |
415 | if (priv->grabbedScreen) { | |
416 | XUngrabPointer(priv->grabbedScreen->beDisplay, CurrentTime); | |
417 | dmxSync(priv->grabbedScreen, TRUE); | |
418 | priv->grabbedScreen = NULL; | |
419 | } | |
420 | break; | |
421 | case MotionNotify: | |
422 | DMXDBG8("dmxBackendCollectEvents: MotionNotify %d/%d" | |
423 | " newscreen=%d: %d %d (e=%d; last=%d,%d)\n", | |
424 | dmxScreen->index, priv->myScreen, | |
425 | priv->newscreen, | |
426 | X.xmotion.x, X.xmotion.y, | |
427 | entered, priv->lastX, priv->lastY); | |
428 | if (dmxBackendPendingMotionEvent(priv, TRUE)) | |
429 | continue; | |
430 | if (!(dmxScreen = dmxBackendFindWindow(priv, X.xmotion.window))) | |
431 | dmxLog(dmxFatal, | |
432 | " Event on non-existant window %lu\n", | |
433 | X.xmotion.window); | |
434 | if (!priv->relative || dmxInput->console) { | |
435 | int newX = X.xmotion.x - dmxScreen->rootX; | |
436 | int newY = X.xmotion.y - dmxScreen->rootY; | |
437 | ||
438 | if (!priv->newscreen) { | |
439 | int width = dmxScreen->rootWidth; | |
440 | int height = dmxScreen->rootHeight; | |
441 | ||
442 | if (!newX) | |
443 | newX = -1; | |
444 | if (newX == width - 1) | |
445 | newX = width; | |
446 | if (!newY) | |
447 | newY = -1; | |
448 | if (newY == height - 1) | |
449 | newY = height; | |
450 | } | |
451 | priv->newscreen = 0; | |
452 | v[0] = dmxScreen->rootXOrigin + newX; | |
453 | v[1] = dmxScreen->rootYOrigin + newY; | |
454 | DMXDBG8(" Absolute move: %d,%d (r=%dx%d+%d+%d s=%dx%d)\n", | |
455 | v[0], v[1], | |
456 | priv->be->rootWidth, priv->be->rootHeight, | |
457 | priv->be->rootX, priv->be->rootY, | |
458 | priv->be->scrnWidth, priv->be->scrnHeight); | |
459 | motion(priv->mou, v, 0, 2, DMX_ABSOLUTE, block); | |
460 | priv->entered = 0; | |
461 | } | |
462 | else { | |
463 | int newX = priv->lastX - X.xmotion.x; | |
464 | int newY = priv->lastY - X.xmotion.y; | |
465 | ||
466 | priv->lastX = X.xmotion.x; | |
467 | priv->lastY = X.xmotion.y; | |
468 | v[0] = newX; | |
469 | v[1] = newY; | |
470 | DMXDBG2(" Relative move: %d, %d\n", v[0], v[1]); | |
471 | motion(priv->mou, v, 0, 2, DMX_RELATIVE, block); | |
472 | } | |
473 | if (entered && priv->relative) { | |
474 | DMXDBG4(" **** Relative %d %d instead of absolute %d %d\n", | |
475 | v[0], v[1], | |
476 | (dmxScreen->rootXOrigin + X.xmotion.x | |
477 | - dmxScreen->rootX), | |
478 | (dmxScreen->rootYOrigin + X.xmotion.y | |
479 | - dmxScreen->rootY)); | |
480 | } | |
481 | break; | |
482 | ||
483 | case KeyPress: | |
484 | case KeyRelease: | |
485 | enqueue(priv->kbd, X.type, X.xkey.keycode, 0, NULL, block); | |
486 | break; | |
487 | case ButtonPress: | |
488 | case ButtonRelease: | |
489 | /* fall-through */ | |
490 | default: | |
491 | /* Pass the whole event here, because | |
492 | * this may be an extension event. */ | |
493 | enqueue(priv->mou, X.type, X.xbutton.button, 0, &X, block); | |
494 | break; | |
495 | } | |
496 | } | |
497 | } | |
498 | ||
499 | /** Called after input events are processed from the DMX queue. No | |
500 | * event processing actually takes place here, but this is a convenient | |
501 | * place to update the pointer. */ | |
502 | void | |
503 | dmxBackendProcessInput(pointer private) | |
504 | { | |
505 | GETPRIVFROMPRIVATE; | |
506 | ||
507 | DMXDBG6("dmxBackendProcessInput: myScreen=%d relative=%d" | |
508 | " last=%d,%d center=%d,%d\n", | |
509 | priv->myScreen, priv->relative, | |
510 | priv->lastX, priv->lastY, priv->centerX, priv->centerY); | |
511 | ||
512 | if (priv->relative | |
513 | && !dmxInput->console | |
514 | && (priv->lastX != priv->centerX || priv->lastY != priv->centerY)) { | |
515 | DMXDBG4(" warping pointer from last=%d,%d to center=%d,%d\n", | |
516 | priv->lastX, priv->lastY, priv->centerX, priv->centerY); | |
517 | priv->lastX = priv->centerX; | |
518 | priv->lastY = priv->centerY; | |
519 | XWarpPointer(priv->display, None, priv->window, | |
520 | 0, 0, 0, 0, priv->lastX, priv->lastY); | |
521 | dmxSync(&dmxScreens[priv->myScreen], TRUE); | |
522 | } | |
523 | } | |
524 | ||
525 | static void | |
526 | dmxBackendComputeCenter(myPrivate * priv) | |
527 | { | |
528 | int centerX; | |
529 | int centerY; | |
530 | ||
531 | centerX = priv->be->rootWidth / 2 + priv->be->rootX; | |
532 | centerY = priv->be->rootHeight / 2 + priv->be->rootY; | |
533 | ||
534 | if (centerX > priv->be->rootWidth) | |
535 | centerX = priv->be->rootWidth - 1; | |
536 | if (centerY > priv->be->rootHeight) | |
537 | centerY = priv->be->rootHeight - 1; | |
538 | if (centerX < 1) | |
539 | centerX = 1; | |
540 | if (centerY < 1) | |
541 | centerY = 1; | |
542 | ||
543 | priv->centerX = centerX; | |
544 | priv->centerY = centerY; | |
545 | } | |
546 | ||
547 | static DMXScreenInfo * | |
548 | dmxBackendInitPrivate(DevicePtr pDev) | |
549 | { | |
550 | GETPRIVFROMPDEV; | |
551 | DMXInputInfo *dmxInput = &dmxInputs[dmxLocal->inputIdx]; | |
552 | DMXScreenInfo *dmxScreen; | |
553 | int i; | |
554 | ||
555 | /* Fill in myPrivate */ | |
556 | for (i = 0, dmxScreen = &dmxScreens[0]; i < dmxNumScreens; i++, dmxScreen++) { | |
557 | if (dmxPropertySameDisplay(dmxScreen, dmxInput->name)) { | |
558 | priv->display = dmxScreen->beDisplay; | |
559 | priv->window = dmxScreen->scrnWin; | |
560 | priv->be = dmxScreen; | |
561 | break; | |
562 | } | |
563 | } | |
564 | ||
565 | if (i >= dmxNumScreens) | |
566 | dmxLog(dmxFatal, | |
567 | "%s is not an existing backend display - cannot initialize\n", | |
568 | dmxInput->name); | |
569 | ||
570 | return dmxScreen; | |
571 | } | |
572 | ||
573 | /** Re-initialized the backend device described by \a pDev (after a | |
574 | * reconfig). */ | |
575 | void | |
576 | dmxBackendLateReInit(DevicePtr pDev) | |
577 | { | |
578 | GETPRIVFROMPDEV; | |
579 | int x, y; | |
580 | ||
581 | dmxBackendSameDisplay(NULL, 0); /* Invalidate cache */ | |
582 | dmxBackendInitPrivate(pDev); | |
583 | dmxBackendComputeCenter(priv); | |
584 | dmxGetGlobalPosition(&x, &y); | |
585 | dmxInvalidateGlobalPosition(); /* To force event processing */ | |
586 | dmxBackendUpdatePosition(priv, x, y); | |
587 | } | |
588 | ||
589 | /** Initialized the backend device described by \a pDev. */ | |
590 | void | |
591 | dmxBackendInit(DevicePtr pDev) | |
592 | { | |
593 | GETPRIVFROMPDEV; | |
594 | DMXScreenInfo *dmxScreen; | |
595 | ||
596 | dmxBackendSameDisplay(NULL, 0); /* Invalidate cache */ | |
597 | ||
598 | if (dmxLocal->type == DMX_LOCAL_MOUSE) | |
599 | priv->mou = pDev; | |
600 | if (dmxLocal->type == DMX_LOCAL_KEYBOARD) | |
601 | priv->kbd = pDev; | |
602 | if (priv->initialized++) | |
603 | return; /* Only do once for mouse/keyboard pair */ | |
604 | ||
605 | dmxScreen = dmxBackendInitPrivate(pDev); | |
606 | ||
607 | /* Finish initialization using computed values or constants. */ | |
608 | dmxBackendComputeCenter(priv); | |
609 | priv->eventMask = (EnterWindowMask | LeaveWindowMask); | |
610 | priv->myScreen = dmxScreen->index; | |
611 | priv->lastX = priv->centerX; | |
612 | priv->lastY = priv->centerY; | |
613 | priv->relative = 0; | |
614 | priv->newscreen = 0; | |
615 | } | |
616 | ||
617 | /** Get information about the backend pointer (for initialization). */ | |
618 | void | |
619 | dmxBackendMouGetInfo(DevicePtr pDev, DMXLocalInitInfoPtr info) | |
620 | { | |
621 | const DMXScreenInfo *dmxScreen = dmxBackendInitPrivate(pDev); | |
622 | ||
623 | info->buttonClass = 1; | |
624 | dmxCommonMouGetMap(pDev, info->map, &info->numButtons); | |
625 | info->valuatorClass = 1; | |
626 | info->numRelAxes = 2; | |
627 | info->minval[0] = 0; | |
628 | info->minval[1] = 0; | |
629 | info->maxval[0] = dmxScreen->beWidth; | |
630 | info->maxval[1] = dmxScreen->beHeight; | |
631 | info->res[0] = 1; | |
632 | info->minres[0] = 0; | |
633 | info->maxres[0] = 1; | |
634 | info->ptrFeedbackClass = 1; | |
635 | } | |
636 | ||
637 | /** Get information about the backend keyboard (for initialization). */ | |
638 | void | |
639 | dmxBackendKbdGetInfo(DevicePtr pDev, DMXLocalInitInfoPtr info) | |
640 | { | |
641 | dmxCommonKbdGetInfo(pDev, info); | |
642 | info->keyboard = 1; | |
643 | info->keyClass = 1; | |
644 | dmxCommonKbdGetMap(pDev, &info->keySyms, info->modMap); | |
645 | info->freemap = 1; | |
646 | info->focusClass = 1; | |
647 | info->kbdFeedbackClass = 1; | |
648 | } | |
649 | ||
650 | /** Process #DMXFunctionType functions. The only function handled here | |
651 | * is to acknowledge a pending server shutdown. */ | |
652 | int | |
653 | dmxBackendFunctions(pointer private, DMXFunctionType function) | |
654 | { | |
655 | switch (function) { | |
656 | case DMX_FUNCTION_TERMINATE: | |
657 | return 1; | |
658 | default: | |
659 | return 0; | |
660 | } | |
661 | } |