1 | /* |
2 | Simple DirectMedia Layer |
3 | Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org> |
4 | |
5 | This software is provided 'as-is', without any express or implied |
6 | warranty. In no event will the authors be held liable for any damages |
7 | arising from the use of this software. |
8 | |
9 | Permission is granted to anyone to use this software for any purpose, |
10 | including commercial applications, and to alter it and redistribute it |
11 | freely, subject to the following restrictions: |
12 | |
13 | 1. The origin of this software must not be misrepresented; you must not |
14 | claim that you wrote the original software. If you use this software |
15 | in a product, an acknowledgment in the product documentation would be |
16 | appreciated but is not required. |
17 | 2. Altered source versions must be plainly marked as such, and must not be |
18 | misrepresented as being the original software. |
19 | 3. This notice may not be removed or altered from any source distribution. |
20 | */ |
21 | #include "SDL_internal.h" |
22 | |
23 | #ifdef SDL_VIDEO_DRIVER_X11 |
24 | |
25 | #include <X11/cursorfont.h> |
26 | #include "SDL_x11video.h" |
27 | #include "SDL_x11mouse.h" |
28 | #include "SDL_x11xinput2.h" |
29 | #include "SDL_x11xtest.h" |
30 | #include "../SDL_video_c.h" |
31 | #include "../../events/SDL_mouse_c.h" |
32 | |
33 | struct SDL_CursorData |
34 | { |
35 | Cursor cursor; |
36 | }; |
37 | |
38 | // FIXME: Find a better place to put this... |
39 | static Cursor x11_empty_cursor = None; |
40 | static bool x11_cursor_visible = true; |
41 | |
42 | static SDL_Cursor *sys_cursors[SDL_HITTEST_RESIZE_LEFT + 1]; |
43 | |
44 | static Display *GetDisplay(void) |
45 | { |
46 | return SDL_GetVideoDevice()->internal->display; |
47 | } |
48 | |
49 | static Cursor X11_CreateEmptyCursor(void) |
50 | { |
51 | if (x11_empty_cursor == None) { |
52 | Display *display = GetDisplay(); |
53 | char data[1]; |
54 | XColor color; |
55 | Pixmap pixmap; |
56 | |
57 | SDL_zeroa(data); |
58 | color.red = color.green = color.blue = 0; |
59 | pixmap = X11_XCreateBitmapFromData(display, DefaultRootWindow(display), |
60 | data, 1, 1); |
61 | if (pixmap) { |
62 | x11_empty_cursor = X11_XCreatePixmapCursor(display, pixmap, pixmap, |
63 | &color, &color, 0, 0); |
64 | X11_XFreePixmap(display, pixmap); |
65 | } |
66 | } |
67 | return x11_empty_cursor; |
68 | } |
69 | |
70 | static void X11_DestroyEmptyCursor(void) |
71 | { |
72 | if (x11_empty_cursor != None) { |
73 | X11_XFreeCursor(GetDisplay(), x11_empty_cursor); |
74 | x11_empty_cursor = None; |
75 | } |
76 | } |
77 | |
78 | static SDL_Cursor *X11_CreateCursorAndData(Cursor x11_cursor) |
79 | { |
80 | SDL_Cursor *cursor = (SDL_Cursor *)SDL_calloc(1, sizeof(*cursor)); |
81 | if (cursor) { |
82 | SDL_CursorData *data = (SDL_CursorData *)SDL_calloc(1, sizeof(*data)); |
83 | if (!data) { |
84 | SDL_free(cursor); |
85 | return NULL; |
86 | } |
87 | data->cursor = x11_cursor; |
88 | cursor->internal = data; |
89 | } |
90 | return cursor; |
91 | } |
92 | |
93 | #ifdef SDL_VIDEO_DRIVER_X11_XCURSOR |
94 | static Cursor X11_CreateXCursorCursor(SDL_Surface *surface, int hot_x, int hot_y) |
95 | { |
96 | Display *display = GetDisplay(); |
97 | Cursor cursor = None; |
98 | XcursorImage *image; |
99 | |
100 | image = X11_XcursorImageCreate(surface->w, surface->h); |
101 | if (!image) { |
102 | SDL_OutOfMemory(); |
103 | return None; |
104 | } |
105 | image->xhot = hot_x; |
106 | image->yhot = hot_y; |
107 | image->delay = 0; |
108 | |
109 | SDL_assert(surface->format == SDL_PIXELFORMAT_ARGB8888); |
110 | SDL_assert(surface->pitch == surface->w * 4); |
111 | SDL_memcpy(image->pixels, surface->pixels, (size_t)surface->h * surface->pitch); |
112 | |
113 | cursor = X11_XcursorImageLoadCursor(display, image); |
114 | |
115 | X11_XcursorImageDestroy(image); |
116 | |
117 | return cursor; |
118 | } |
119 | #endif // SDL_VIDEO_DRIVER_X11_XCURSOR |
120 | |
121 | static Cursor X11_CreatePixmapCursor(SDL_Surface *surface, int hot_x, int hot_y) |
122 | { |
123 | Display *display = GetDisplay(); |
124 | XColor fg, bg; |
125 | Cursor cursor = None; |
126 | Uint32 *ptr; |
127 | Uint8 *data_bits, *mask_bits; |
128 | Pixmap data_pixmap, mask_pixmap; |
129 | int x, y; |
130 | unsigned int rfg, gfg, bfg, rbg, gbg, bbg, fgBits, bgBits; |
131 | size_t width_bytes = ((surface->w + 7) & ~((size_t)7)) / 8; |
132 | |
133 | data_bits = SDL_calloc(1, surface->h * width_bytes); |
134 | if (!data_bits) { |
135 | return None; |
136 | } |
137 | |
138 | mask_bits = SDL_calloc(1, surface->h * width_bytes); |
139 | if (!mask_bits) { |
140 | SDL_free(data_bits); |
141 | return None; |
142 | } |
143 | |
144 | // Code below assumes ARGB pixel format |
145 | SDL_assert(surface->format == SDL_PIXELFORMAT_ARGB8888); |
146 | |
147 | rfg = gfg = bfg = rbg = gbg = bbg = fgBits = bgBits = 0; |
148 | for (y = 0; y < surface->h; ++y) { |
149 | ptr = (Uint32 *)((Uint8 *)surface->pixels + y * surface->pitch); |
150 | for (x = 0; x < surface->w; ++x) { |
151 | int alpha = (*ptr >> 24) & 0xff; |
152 | int red = (*ptr >> 16) & 0xff; |
153 | int green = (*ptr >> 8) & 0xff; |
154 | int blue = (*ptr >> 0) & 0xff; |
155 | if (alpha > 25) { |
156 | mask_bits[y * width_bytes + x / 8] |= (0x01 << (x % 8)); |
157 | |
158 | if ((red + green + blue) > 0x40) { |
159 | fgBits++; |
160 | rfg += red; |
161 | gfg += green; |
162 | bfg += blue; |
163 | data_bits[y * width_bytes + x / 8] |= (0x01 << (x % 8)); |
164 | } else { |
165 | bgBits++; |
166 | rbg += red; |
167 | gbg += green; |
168 | bbg += blue; |
169 | } |
170 | } |
171 | ++ptr; |
172 | } |
173 | } |
174 | |
175 | if (fgBits) { |
176 | fg.red = rfg * 257 / fgBits; |
177 | fg.green = gfg * 257 / fgBits; |
178 | fg.blue = bfg * 257 / fgBits; |
179 | } else { |
180 | fg.red = fg.green = fg.blue = 0; |
181 | } |
182 | |
183 | if (bgBits) { |
184 | bg.red = rbg * 257 / bgBits; |
185 | bg.green = gbg * 257 / bgBits; |
186 | bg.blue = bbg * 257 / bgBits; |
187 | } else { |
188 | bg.red = bg.green = bg.blue = 0; |
189 | } |
190 | |
191 | data_pixmap = X11_XCreateBitmapFromData(display, DefaultRootWindow(display), |
192 | (char *)data_bits, |
193 | surface->w, surface->h); |
194 | mask_pixmap = X11_XCreateBitmapFromData(display, DefaultRootWindow(display), |
195 | (char *)mask_bits, |
196 | surface->w, surface->h); |
197 | cursor = X11_XCreatePixmapCursor(display, data_pixmap, mask_pixmap, |
198 | &fg, &bg, hot_x, hot_y); |
199 | X11_XFreePixmap(display, data_pixmap); |
200 | X11_XFreePixmap(display, mask_pixmap); |
201 | SDL_free(data_bits); |
202 | SDL_free(mask_bits); |
203 | |
204 | return cursor; |
205 | } |
206 | |
207 | static SDL_Cursor *X11_CreateCursor(SDL_Surface *surface, int hot_x, int hot_y) |
208 | { |
209 | Cursor x11_cursor = None; |
210 | |
211 | #ifdef SDL_VIDEO_DRIVER_X11_XCURSOR |
212 | if (SDL_X11_HAVE_XCURSOR) { |
213 | x11_cursor = X11_CreateXCursorCursor(surface, hot_x, hot_y); |
214 | } |
215 | #endif |
216 | if (x11_cursor == None) { |
217 | x11_cursor = X11_CreatePixmapCursor(surface, hot_x, hot_y); |
218 | } |
219 | return X11_CreateCursorAndData(x11_cursor); |
220 | } |
221 | |
222 | static unsigned int GetLegacySystemCursorShape(SDL_SystemCursor id) |
223 | { |
224 | switch (id) { |
225 | // X Font Cursors reference: |
226 | // http://tronche.com/gui/x/xlib/appendix/b/ |
227 | case SDL_SYSTEM_CURSOR_DEFAULT: return XC_left_ptr; |
228 | case SDL_SYSTEM_CURSOR_TEXT: return XC_xterm; |
229 | case SDL_SYSTEM_CURSOR_WAIT: return XC_watch; |
230 | case SDL_SYSTEM_CURSOR_CROSSHAIR: return XC_tcross; |
231 | case SDL_SYSTEM_CURSOR_PROGRESS: return XC_watch; |
232 | case SDL_SYSTEM_CURSOR_NWSE_RESIZE: return XC_top_left_corner; |
233 | case SDL_SYSTEM_CURSOR_NESW_RESIZE: return XC_top_right_corner; |
234 | case SDL_SYSTEM_CURSOR_EW_RESIZE: return XC_sb_h_double_arrow; |
235 | case SDL_SYSTEM_CURSOR_NS_RESIZE: return XC_sb_v_double_arrow; |
236 | case SDL_SYSTEM_CURSOR_MOVE: return XC_fleur; |
237 | case SDL_SYSTEM_CURSOR_NOT_ALLOWED: return XC_pirate; |
238 | case SDL_SYSTEM_CURSOR_POINTER: return XC_hand2; |
239 | case SDL_SYSTEM_CURSOR_NW_RESIZE: return XC_top_left_corner; |
240 | case SDL_SYSTEM_CURSOR_N_RESIZE: return XC_top_side; |
241 | case SDL_SYSTEM_CURSOR_NE_RESIZE: return XC_top_right_corner; |
242 | case SDL_SYSTEM_CURSOR_E_RESIZE: return XC_right_side; |
243 | case SDL_SYSTEM_CURSOR_SE_RESIZE: return XC_bottom_right_corner; |
244 | case SDL_SYSTEM_CURSOR_S_RESIZE: return XC_bottom_side; |
245 | case SDL_SYSTEM_CURSOR_SW_RESIZE: return XC_bottom_left_corner; |
246 | case SDL_SYSTEM_CURSOR_W_RESIZE: return XC_left_side; |
247 | case SDL_SYSTEM_CURSOR_COUNT: break; // so the compiler might notice if an enum value is missing here. |
248 | } |
249 | |
250 | SDL_assert(0); |
251 | return 0; |
252 | } |
253 | |
254 | static SDL_Cursor *X11_CreateSystemCursor(SDL_SystemCursor id) |
255 | { |
256 | SDL_Cursor *cursor = NULL; |
257 | Display *dpy = GetDisplay(); |
258 | Cursor x11_cursor = None; |
259 | |
260 | #ifdef SDL_VIDEO_DRIVER_X11_XCURSOR |
261 | if (SDL_X11_HAVE_XCURSOR) { |
262 | x11_cursor = X11_XcursorLibraryLoadCursor(dpy, SDL_GetCSSCursorName(id, NULL)); |
263 | } |
264 | #endif |
265 | |
266 | if (x11_cursor == None) { |
267 | x11_cursor = X11_XCreateFontCursor(dpy, GetLegacySystemCursorShape(id)); |
268 | } |
269 | |
270 | if (x11_cursor != None) { |
271 | cursor = X11_CreateCursorAndData(x11_cursor); |
272 | } |
273 | |
274 | return cursor; |
275 | } |
276 | |
277 | static SDL_Cursor *X11_CreateDefaultCursor(void) |
278 | { |
279 | SDL_SystemCursor id = SDL_GetDefaultSystemCursor(); |
280 | return X11_CreateSystemCursor(id); |
281 | } |
282 | |
283 | static void X11_FreeCursor(SDL_Cursor *cursor) |
284 | { |
285 | Cursor x11_cursor = cursor->internal->cursor; |
286 | |
287 | if (x11_cursor != None) { |
288 | X11_XFreeCursor(GetDisplay(), x11_cursor); |
289 | } |
290 | SDL_free(cursor->internal); |
291 | SDL_free(cursor); |
292 | } |
293 | |
294 | static bool X11_ShowCursor(SDL_Cursor *cursor) |
295 | { |
296 | Cursor x11_cursor = 0; |
297 | |
298 | if (cursor) { |
299 | x11_cursor = cursor->internal->cursor; |
300 | } else { |
301 | x11_cursor = X11_CreateEmptyCursor(); |
302 | } |
303 | |
304 | // FIXME: Is there a better way than this? |
305 | { |
306 | SDL_VideoDevice *video = SDL_GetVideoDevice(); |
307 | Display *display = GetDisplay(); |
308 | SDL_Window *window; |
309 | |
310 | x11_cursor_visible = !!cursor; |
311 | |
312 | for (window = video->windows; window; window = window->next) { |
313 | SDL_WindowData *data = window->internal; |
314 | if (data) { |
315 | if (x11_cursor != None) { |
316 | X11_XDefineCursor(display, data->xwindow, x11_cursor); |
317 | } else { |
318 | X11_XUndefineCursor(display, data->xwindow); |
319 | } |
320 | } |
321 | } |
322 | X11_XFlush(display); |
323 | } |
324 | return true; |
325 | } |
326 | |
327 | static void X11_WarpMouseInternal(Window xwindow, float x, float y) |
328 | { |
329 | SDL_VideoData *videodata = SDL_GetVideoDevice()->internal; |
330 | Display *display = videodata->display; |
331 | bool warp_hack = false; |
332 | |
333 | // XWayland will only warp the cursor if it is hidden, so this workaround is required. |
334 | if (videodata->is_xwayland && x11_cursor_visible) { |
335 | warp_hack = true; |
336 | } |
337 | |
338 | if (warp_hack) { |
339 | X11_ShowCursor(NULL); |
340 | } |
341 | #ifdef SDL_VIDEO_DRIVER_X11_XINPUT2 |
342 | int deviceid = 0; |
343 | if (X11_Xinput2IsInitialized()) { |
344 | /* It seems XIWarpPointer() doesn't work correctly on multi-head setups: |
345 | * https://developer.blender.org/rB165caafb99c6846e53d11c4e966990aaffc06cea |
346 | */ |
347 | if (ScreenCount(display) == 1) { |
348 | X11_XIGetClientPointer(display, None, &deviceid); |
349 | } |
350 | } |
351 | if (deviceid != 0) { |
352 | SDL_assert(SDL_X11_HAVE_XINPUT2); |
353 | X11_XIWarpPointer(display, deviceid, None, xwindow, 0.0, 0.0, 0, 0, x, y); |
354 | } else |
355 | #endif |
356 | { |
357 | X11_XWarpPointer(display, None, xwindow, 0, 0, 0, 0, (int)x, (int)y); |
358 | } |
359 | |
360 | if (warp_hack) { |
361 | X11_ShowCursor(SDL_GetCursor()); |
362 | } |
363 | X11_XSync(display, False); |
364 | videodata->global_mouse_changed = true; |
365 | } |
366 | |
367 | static bool X11_WarpMouse(SDL_Window *window, float x, float y) |
368 | { |
369 | SDL_WindowData *data = window->internal; |
370 | |
371 | if (X11_WarpMouseXTest(SDL_GetVideoDevice(), window, x, y)) { |
372 | return true; |
373 | } |
374 | |
375 | #ifdef SDL_VIDEO_DRIVER_X11_XFIXES |
376 | // If we have no barrier, we need to warp |
377 | if (data->pointer_barrier_active == false) { |
378 | X11_WarpMouseInternal(data->xwindow, x, y); |
379 | } |
380 | #else |
381 | X11_WarpMouseInternal(data->xwindow, x, y); |
382 | #endif |
383 | return true; |
384 | } |
385 | |
386 | static bool X11_WarpMouseGlobal(float x, float y) |
387 | { |
388 | if (X11_WarpMouseXTest(SDL_GetVideoDevice(), NULL, x, y)) { |
389 | return true; |
390 | } |
391 | |
392 | X11_WarpMouseInternal(DefaultRootWindow(GetDisplay()), x, y); |
393 | return true; |
394 | } |
395 | |
396 | static bool X11_SetRelativeMouseMode(bool enabled) |
397 | { |
398 | if (!X11_Xinput2IsInitialized()) { |
399 | return SDL_Unsupported(); |
400 | } |
401 | return true; |
402 | } |
403 | |
404 | static bool X11_CaptureMouse(SDL_Window *window) |
405 | { |
406 | Display *display = GetDisplay(); |
407 | SDL_Window *mouse_focus = SDL_GetMouseFocus(); |
408 | |
409 | if (window) { |
410 | SDL_WindowData *data = window->internal; |
411 | |
412 | /* If XInput2 is handling the pointer input, non-confinement grabs will always fail with 'AlreadyGrabbed', |
413 | * since the pointer is being grabbed by XInput2. |
414 | */ |
415 | if (!data->xinput2_mouse_enabled || data->mouse_grabbed) { |
416 | const unsigned int mask = ButtonPressMask | ButtonReleaseMask | PointerMotionMask | FocusChangeMask; |
417 | Window confined = (data->mouse_grabbed ? data->xwindow : None); |
418 | const int rc = X11_XGrabPointer(display, data->xwindow, False, |
419 | mask, GrabModeAsync, GrabModeAsync, |
420 | confined, None, CurrentTime); |
421 | if (rc != GrabSuccess) { |
422 | return SDL_SetError("X server refused mouse capture" ); |
423 | } |
424 | |
425 | if (data->mouse_grabbed) { |
426 | // XGrabPointer can warp the cursor when confining, so update the coordinates. |
427 | data->videodata->global_mouse_changed = true; |
428 | } |
429 | } |
430 | } else if (mouse_focus) { |
431 | SDL_UpdateWindowGrab(mouse_focus); |
432 | } else { |
433 | X11_XUngrabPointer(display, CurrentTime); |
434 | } |
435 | |
436 | X11_XSync(display, False); |
437 | |
438 | return true; |
439 | } |
440 | |
441 | static SDL_MouseButtonFlags X11_GetGlobalMouseState(float *x, float *y) |
442 | { |
443 | SDL_VideoData *videodata = SDL_GetVideoDevice()->internal; |
444 | SDL_DisplayID *displays; |
445 | Display *display = GetDisplay(); |
446 | int i; |
447 | |
448 | // !!! FIXME: should we XSync() here first? |
449 | |
450 | if (!X11_Xinput2IsInitialized()) { |
451 | videodata->global_mouse_changed = true; |
452 | } |
453 | |
454 | // check if we have this cached since XInput last saw the mouse move. |
455 | // !!! FIXME: can we just calculate this from XInput's events? |
456 | if (videodata->global_mouse_changed) { |
457 | displays = SDL_GetDisplays(NULL); |
458 | if (displays) { |
459 | for (i = 0; displays[i]; ++i) { |
460 | SDL_DisplayData *data = SDL_GetDisplayDriverData(displays[i]); |
461 | if (data) { |
462 | Window root, child; |
463 | int rootx, rooty, winx, winy; |
464 | unsigned int mask; |
465 | if (X11_XQueryPointer(display, RootWindow(display, data->screen), &root, &child, &rootx, &rooty, &winx, &winy, &mask)) { |
466 | XWindowAttributes root_attrs; |
467 | SDL_MouseButtonFlags buttons = 0; |
468 | buttons |= (mask & Button1Mask) ? SDL_BUTTON_LMASK : 0; |
469 | buttons |= (mask & Button2Mask) ? SDL_BUTTON_MMASK : 0; |
470 | buttons |= (mask & Button3Mask) ? SDL_BUTTON_RMASK : 0; |
471 | // Use the SDL state for the extended buttons - it's better than nothing |
472 | buttons |= (SDL_GetMouseState(NULL, NULL) & (SDL_BUTTON_X1MASK | SDL_BUTTON_X2MASK)); |
473 | /* SDL_DisplayData->x,y point to screen origin, and adding them to mouse coordinates relative to root window doesn't do the right thing |
474 | * (observed on dual monitor setup with primary display being the rightmost one - mouse was offset to the right). |
475 | * |
476 | * Adding root position to root-relative coordinates seems to be a better way to get absolute position. */ |
477 | X11_XGetWindowAttributes(display, root, &root_attrs); |
478 | videodata->global_mouse_position.x = root_attrs.x + rootx; |
479 | videodata->global_mouse_position.y = root_attrs.y + rooty; |
480 | videodata->global_mouse_buttons = buttons; |
481 | videodata->global_mouse_changed = false; |
482 | break; |
483 | } |
484 | } |
485 | } |
486 | SDL_free(displays); |
487 | } |
488 | } |
489 | |
490 | SDL_assert(!videodata->global_mouse_changed); // The pointer wasn't on any X11 screen?! |
491 | |
492 | *x = (float)videodata->global_mouse_position.x; |
493 | *y = (float)videodata->global_mouse_position.y; |
494 | return videodata->global_mouse_buttons; |
495 | } |
496 | |
497 | void X11_InitMouse(SDL_VideoDevice *_this) |
498 | { |
499 | SDL_Mouse *mouse = SDL_GetMouse(); |
500 | |
501 | mouse->CreateCursor = X11_CreateCursor; |
502 | mouse->CreateSystemCursor = X11_CreateSystemCursor; |
503 | mouse->ShowCursor = X11_ShowCursor; |
504 | mouse->FreeCursor = X11_FreeCursor; |
505 | mouse->WarpMouse = X11_WarpMouse; |
506 | mouse->WarpMouseGlobal = X11_WarpMouseGlobal; |
507 | mouse->SetRelativeMouseMode = X11_SetRelativeMouseMode; |
508 | mouse->CaptureMouse = X11_CaptureMouse; |
509 | mouse->GetGlobalMouseState = X11_GetGlobalMouseState; |
510 | |
511 | SDL_HitTestResult r = SDL_HITTEST_NORMAL; |
512 | while (r <= SDL_HITTEST_RESIZE_LEFT) { |
513 | switch (r) { |
514 | case SDL_HITTEST_NORMAL: sys_cursors[r] = X11_CreateSystemCursor(SDL_SYSTEM_CURSOR_DEFAULT); break; |
515 | case SDL_HITTEST_DRAGGABLE: sys_cursors[r] = X11_CreateSystemCursor(SDL_SYSTEM_CURSOR_DEFAULT); break; |
516 | case SDL_HITTEST_RESIZE_TOPLEFT: sys_cursors[r] = X11_CreateSystemCursor(SDL_SYSTEM_CURSOR_NW_RESIZE); break; |
517 | case SDL_HITTEST_RESIZE_TOP: sys_cursors[r] = X11_CreateSystemCursor(SDL_SYSTEM_CURSOR_N_RESIZE); break; |
518 | case SDL_HITTEST_RESIZE_TOPRIGHT: sys_cursors[r] = X11_CreateSystemCursor(SDL_SYSTEM_CURSOR_NE_RESIZE); break; |
519 | case SDL_HITTEST_RESIZE_RIGHT: sys_cursors[r] = X11_CreateSystemCursor(SDL_SYSTEM_CURSOR_E_RESIZE); break; |
520 | case SDL_HITTEST_RESIZE_BOTTOMRIGHT: sys_cursors[r] = X11_CreateSystemCursor(SDL_SYSTEM_CURSOR_SE_RESIZE); break; |
521 | case SDL_HITTEST_RESIZE_BOTTOM: sys_cursors[r] = X11_CreateSystemCursor(SDL_SYSTEM_CURSOR_S_RESIZE); break; |
522 | case SDL_HITTEST_RESIZE_BOTTOMLEFT: sys_cursors[r] = X11_CreateSystemCursor(SDL_SYSTEM_CURSOR_SW_RESIZE); break; |
523 | case SDL_HITTEST_RESIZE_LEFT: sys_cursors[r] = X11_CreateSystemCursor(SDL_SYSTEM_CURSOR_W_RESIZE); break; |
524 | } |
525 | r++; |
526 | } |
527 | |
528 | SDL_SetDefaultCursor(X11_CreateDefaultCursor()); |
529 | } |
530 | |
531 | void X11_QuitMouse(SDL_VideoDevice *_this) |
532 | { |
533 | SDL_VideoData *data = _this->internal; |
534 | SDL_XInput2DeviceInfo *i; |
535 | SDL_XInput2DeviceInfo *next; |
536 | int j; |
537 | |
538 | for (j = 0; j < SDL_arraysize(sys_cursors); j++) { |
539 | X11_FreeCursor(sys_cursors[j]); |
540 | sys_cursors[j] = NULL; |
541 | } |
542 | |
543 | for (i = data->mouse_device_info; i; i = next) { |
544 | next = i->next; |
545 | SDL_free(i); |
546 | } |
547 | data->mouse_device_info = NULL; |
548 | |
549 | X11_DestroyEmptyCursor(); |
550 | } |
551 | |
552 | void X11_SetHitTestCursor(SDL_HitTestResult rc) |
553 | { |
554 | if (rc == SDL_HITTEST_NORMAL || rc == SDL_HITTEST_DRAGGABLE) { |
555 | SDL_SetCursor(NULL); |
556 | } else { |
557 | X11_ShowCursor(sys_cursors[rc]); |
558 | } |
559 | } |
560 | |
561 | #endif // SDL_VIDEO_DRIVER_X11 |
562 | |