e14743d1 |
1 | /* |
2 | SDL - Simple DirectMedia Layer |
3 | Copyright (C) 1997-2009 Sam Lantinga |
4 | |
5 | This library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Library General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2 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 | Library General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Library General Public |
16 | License along with this library; if not, write to the Free |
17 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
18 | |
19 | Sam Lantinga |
20 | slouken@libsdl.org |
21 | */ |
22 | #include "SDL_config.h" |
23 | |
24 | #include "SDL_QuartzVideo.h" |
25 | #include "SDL_QuartzWM.h" |
26 | |
27 | |
28 | void QZ_FreeWMCursor (_THIS, WMcursor *cursor) { |
29 | |
30 | if ( cursor != NULL ) { |
31 | [ cursor->nscursor release ]; |
32 | free (cursor); |
33 | } |
34 | } |
35 | |
36 | WMcursor* QZ_CreateWMCursor (_THIS, Uint8 *data, Uint8 *mask, |
37 | int w, int h, int hot_x, int hot_y) { |
38 | WMcursor *cursor; |
39 | NSBitmapImageRep *imgrep; |
40 | NSImage *img; |
41 | unsigned char *planes[5]; |
42 | int i; |
43 | NSAutoreleasePool *pool; |
44 | |
45 | pool = [ [ NSAutoreleasePool alloc ] init ]; |
46 | |
47 | /* Allocate the cursor memory */ |
48 | cursor = (WMcursor *)SDL_malloc(sizeof(WMcursor)); |
49 | if (cursor == NULL) goto outOfMemory; |
50 | |
51 | /* create the image representation and get the pointers to its storage */ |
52 | imgrep = [ [ [ NSBitmapImageRep alloc ] initWithBitmapDataPlanes: NULL pixelsWide: w pixelsHigh: h bitsPerSample: 1 samplesPerPixel: 2 hasAlpha: YES isPlanar: YES colorSpaceName: NSDeviceBlackColorSpace bytesPerRow: (w+7)/8 bitsPerPixel: 0 ] autorelease ]; |
53 | if (imgrep == nil) goto outOfMemory; |
54 | [ imgrep getBitmapDataPlanes: planes ]; |
55 | |
56 | /* copy data and mask, extending the mask to all black pixels because the inversion effect doesn't work with Cocoa's alpha-blended cursors */ |
57 | for (i = 0; i < (w+7)/8*h; i++) { |
58 | planes[0][i] = data[i]; |
59 | planes[1][i] = mask[i] | data[i]; |
60 | } |
61 | |
62 | /* create image and cursor */ |
63 | img = [ [ [ NSImage alloc ] initWithSize: NSMakeSize(w, h) ] autorelease ]; |
64 | if (img == nil) goto outOfMemory; |
65 | [ img addRepresentation: imgrep ]; |
66 | if (system_version < 0x1030) { /* on 10.2, cursors must be 16*16 */ |
67 | if (w > 16 || h > 16) { /* too big: scale it down */ |
68 | [ img setScalesWhenResized: YES ]; |
69 | hot_x = hot_x*16/w; |
70 | hot_y = hot_y*16/h; |
71 | } |
72 | else { /* too small (or just right): extend it (from the bottom left corner, so hot_y must be adjusted) */ |
73 | hot_y += 16 - h; |
74 | } |
75 | [ img setSize: NSMakeSize(16, 16) ]; |
76 | } |
77 | cursor->nscursor = [ [ NSCursor alloc ] initWithImage: img hotSpot: NSMakePoint(hot_x, hot_y) ]; |
78 | if (cursor->nscursor == nil) goto outOfMemory; |
79 | |
80 | [ pool release ]; |
81 | return(cursor); |
82 | |
83 | outOfMemory: |
84 | [ pool release ]; |
85 | if (cursor != NULL) SDL_free(cursor); |
86 | SDL_OutOfMemory(); |
87 | return(NULL); |
88 | } |
89 | |
90 | void QZ_UpdateCursor (_THIS) { |
91 | BOOL state; |
92 | |
93 | if (cursor_should_be_visible || !(SDL_GetAppState() & SDL_APPMOUSEFOCUS)) { |
94 | state = YES; |
95 | } else { |
96 | state = NO; |
97 | } |
98 | if (state != cursor_visible) { |
99 | if (state) { |
100 | [ NSCursor unhide ]; |
101 | } else { |
102 | [ NSCursor hide ]; |
103 | } |
104 | cursor_visible = state; |
105 | } |
106 | } |
107 | |
108 | BOOL QZ_IsMouseInWindow (_THIS) { |
109 | if (qz_window == nil || (mode_flags & SDL_FULLSCREEN)) return YES; /*fullscreen*/ |
110 | else { |
111 | NSPoint p = [ qz_window mouseLocationOutsideOfEventStream ]; |
112 | p.y -= 1.0f; /* Apparently y goes from 1 to h, not from 0 to h-1 (i.e. the "location of the mouse" seems to be defined as "the location of the top left corner of the mouse pointer's hot pixel" */ |
113 | return NSPointInRect(p, [ window_view frame ]); |
114 | } |
115 | } |
116 | |
117 | int QZ_ShowWMCursor (_THIS, WMcursor *cursor) { |
118 | |
119 | if ( cursor == NULL) { |
120 | if ( cursor_should_be_visible ) { |
121 | cursor_should_be_visible = NO; |
122 | QZ_ChangeGrabState (this, QZ_HIDECURSOR); |
123 | } |
124 | QZ_UpdateCursor(this); |
125 | } |
126 | else { |
127 | if (qz_window ==nil || (mode_flags & SDL_FULLSCREEN)) { |
128 | [ cursor->nscursor set ]; |
129 | } |
130 | else { |
131 | [ qz_window invalidateCursorRectsForView: [ qz_window contentView ] ]; |
132 | } |
133 | if ( ! cursor_should_be_visible ) { |
134 | cursor_should_be_visible = YES; |
135 | QZ_ChangeGrabState (this, QZ_SHOWCURSOR); |
136 | } |
137 | QZ_UpdateCursor(this); |
138 | } |
139 | |
140 | return 1; |
141 | } |
142 | |
143 | /* |
144 | Coordinate conversion functions, for convenience |
145 | Cocoa sets the origin at the lower left corner of the window/screen |
146 | SDL, CoreGraphics/WindowServer, and QuickDraw use the origin at the upper left corner |
147 | The routines were written so they could be called before SetVideoMode() has finished; |
148 | this might have limited usefulness at the moment, but the extra cost is trivial. |
149 | */ |
150 | |
151 | /* Convert Cocoa screen coordinate to Cocoa window coordinate */ |
152 | void QZ_PrivateGlobalToLocal (_THIS, NSPoint *p) { |
153 | |
154 | *p = [ qz_window convertScreenToBase:*p ]; |
155 | } |
156 | |
157 | |
158 | /* Convert Cocoa window coordinate to Cocoa screen coordinate */ |
159 | void QZ_PrivateLocalToGlobal (_THIS, NSPoint *p) { |
160 | |
161 | *p = [ qz_window convertBaseToScreen:*p ]; |
162 | } |
163 | |
164 | /* Convert SDL coordinate to Cocoa coordinate */ |
165 | void QZ_PrivateSDLToCocoa (_THIS, NSPoint *p) { |
166 | |
167 | if ( CGDisplayIsCaptured (display_id) ) { /* capture signals fullscreen */ |
168 | |
169 | p->y = CGDisplayPixelsHigh (display_id) - p->y; |
170 | } |
171 | else { |
172 | |
173 | *p = [ window_view convertPoint:*p toView: nil ]; |
174 | p->y = [window_view frame].size.height - p->y; |
175 | } |
176 | } |
177 | |
178 | /* Convert Cocoa coordinate to SDL coordinate */ |
179 | void QZ_PrivateCocoaToSDL (_THIS, NSPoint *p) { |
180 | |
181 | if ( CGDisplayIsCaptured (display_id) ) { /* capture signals fullscreen */ |
182 | |
183 | p->y = CGDisplayPixelsHigh (display_id) - p->y; |
184 | } |
185 | else { |
186 | |
187 | *p = [ window_view convertPoint:*p fromView: nil ]; |
188 | p->y = [window_view frame].size.height - p->y; |
189 | } |
190 | } |
191 | |
192 | /* Convert SDL coordinate to window server (CoreGraphics) coordinate */ |
193 | CGPoint QZ_PrivateSDLToCG (_THIS, NSPoint *p) { |
194 | |
195 | CGPoint cgp; |
196 | |
197 | if ( ! CGDisplayIsCaptured (display_id) ) { /* not captured => not fullscreen => local coord */ |
198 | |
199 | int height; |
200 | |
201 | QZ_PrivateSDLToCocoa (this, p); |
202 | QZ_PrivateLocalToGlobal (this, p); |
203 | |
204 | height = CGDisplayPixelsHigh (display_id); |
205 | p->y = height - p->y; |
206 | } |
207 | |
208 | cgp.x = p->x; |
209 | cgp.y = p->y; |
210 | |
211 | return cgp; |
212 | } |
213 | |
214 | #if 0 /* Dead code */ |
215 | /* Convert window server (CoreGraphics) coordinate to SDL coordinate */ |
216 | void QZ_PrivateCGToSDL (_THIS, NSPoint *p) { |
217 | |
218 | if ( ! CGDisplayIsCaptured (display_id) ) { /* not captured => not fullscreen => local coord */ |
219 | |
220 | int height; |
221 | |
222 | /* Convert CG Global to Cocoa Global */ |
223 | height = CGDisplayPixelsHigh (display_id); |
224 | p->y = height - p->y; |
225 | |
226 | QZ_PrivateGlobalToLocal (this, p); |
227 | QZ_PrivateCocoaToSDL (this, p); |
228 | } |
229 | } |
230 | #endif /* Dead code */ |
231 | |
232 | void QZ_PrivateWarpCursor (_THIS, int x, int y) { |
233 | |
234 | NSPoint p; |
235 | CGPoint cgp; |
236 | |
237 | p = NSMakePoint (x, y); |
238 | cgp = QZ_PrivateSDLToCG (this, &p); |
239 | |
240 | /* this is the magic call that fixes cursor "freezing" after warp */ |
241 | CGSetLocalEventsSuppressionInterval (0.0); |
242 | CGWarpMouseCursorPosition (cgp); |
243 | } |
244 | |
245 | void QZ_WarpWMCursor (_THIS, Uint16 x, Uint16 y) { |
246 | |
247 | /* Only allow warping when in foreground */ |
248 | if ( ! [ NSApp isActive ] ) |
249 | return; |
250 | |
251 | /* Do the actual warp */ |
252 | if (grab_state != QZ_INVISIBLE_GRAB) QZ_PrivateWarpCursor (this, x, y); |
253 | |
254 | /* Generate the mouse moved event */ |
255 | SDL_PrivateMouseMotion (0, 0, x, y); |
256 | } |
257 | |
258 | void QZ_MoveWMCursor (_THIS, int x, int y) { } |
259 | void QZ_CheckMouseMode (_THIS) { } |
260 | |
261 | void QZ_SetCaption (_THIS, const char *title, const char *icon) { |
262 | |
263 | if ( qz_window != nil ) { |
264 | NSString *string; |
265 | if ( title != NULL ) { |
266 | string = [ [ NSString alloc ] initWithUTF8String:title ]; |
267 | [ qz_window setTitle:string ]; |
268 | [ string release ]; |
269 | } |
270 | if ( icon != NULL ) { |
271 | string = [ [ NSString alloc ] initWithUTF8String:icon ]; |
272 | [ qz_window setMiniwindowTitle:string ]; |
273 | [ string release ]; |
274 | } |
275 | } |
276 | } |
277 | |
278 | void QZ_SetIcon (_THIS, SDL_Surface *icon, Uint8 *mask) |
279 | { |
280 | NSBitmapImageRep *imgrep; |
281 | NSImage *img; |
282 | SDL_Surface *mergedSurface; |
283 | NSAutoreleasePool *pool; |
284 | Uint8 *pixels; |
285 | SDL_bool iconSrcAlpha; |
286 | Uint8 iconAlphaValue; |
287 | int i, j, maskPitch, index; |
288 | |
289 | pool = [ [ NSAutoreleasePool alloc ] init ]; |
290 | |
291 | imgrep = [ [ [ NSBitmapImageRep alloc ] initWithBitmapDataPlanes: NULL pixelsWide: icon->w pixelsHigh: icon->h bitsPerSample: 8 samplesPerPixel: 4 hasAlpha: YES isPlanar: NO colorSpaceName: NSDeviceRGBColorSpace bytesPerRow: 4*icon->w bitsPerPixel: 32 ] autorelease ]; |
292 | if (imgrep == nil) goto freePool; |
293 | pixels = [ imgrep bitmapData ]; |
294 | SDL_memset(pixels, 0, 4*icon->w*icon->h); /* make the background, which will survive in colorkeyed areas, completely transparent */ |
295 | |
296 | #if SDL_BYTEORDER == SDL_BIG_ENDIAN |
297 | #define BYTEORDER_DEPENDENT_RGBA_MASKS 0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF |
298 | #else |
299 | #define BYTEORDER_DEPENDENT_RGBA_MASKS 0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000 |
300 | #endif |
301 | mergedSurface = SDL_CreateRGBSurfaceFrom(pixels, icon->w, icon->h, 32, 4*icon->w, BYTEORDER_DEPENDENT_RGBA_MASKS); |
302 | if (mergedSurface == NULL) goto freePool; |
303 | |
304 | /* blit, with temporarily cleared SRCALPHA flag because we want to copy, not alpha-blend */ |
305 | iconSrcAlpha = ((icon->flags & SDL_SRCALPHA) != 0); |
306 | iconAlphaValue = icon->format->alpha; |
307 | SDL_SetAlpha(icon, 0, 255); |
308 | SDL_BlitSurface(icon, NULL, mergedSurface, NULL); |
309 | if (iconSrcAlpha) SDL_SetAlpha(icon, SDL_SRCALPHA, iconAlphaValue); |
310 | |
311 | SDL_FreeSurface(mergedSurface); |
312 | |
313 | /* apply mask, source alpha, and premultiply color values by alpha */ |
314 | maskPitch = (icon->w+7)/8; |
315 | for (i = 0; i < icon->h; i++) { |
316 | for (j = 0; j < icon->w; j++) { |
317 | index = i*4*icon->w + j*4; |
318 | if (!(mask[i*maskPitch + j/8] & (128 >> j%8))) { |
319 | pixels[index + 3] = 0; |
320 | } |
321 | else { |
322 | if (iconSrcAlpha) { |
323 | if (icon->format->Amask == 0) pixels[index + 3] = icon->format->alpha; |
324 | } |
325 | else { |
326 | pixels[index + 3] = 255; |
327 | } |
328 | } |
329 | if (pixels[index + 3] < 255) { |
330 | pixels[index + 0] = (Uint16)pixels[index + 0]*pixels[index + 3]/255; |
331 | pixels[index + 1] = (Uint16)pixels[index + 1]*pixels[index + 3]/255; |
332 | pixels[index + 2] = (Uint16)pixels[index + 2]*pixels[index + 3]/255; |
333 | } |
334 | } |
335 | } |
336 | |
337 | img = [ [ [ NSImage alloc ] initWithSize: NSMakeSize(icon->w, icon->h) ] autorelease ]; |
338 | if (img == nil) goto freePool; |
339 | [ img addRepresentation: imgrep ]; |
340 | [ NSApp setApplicationIconImage:img ]; |
341 | |
342 | freePool: |
343 | [ pool release ]; |
344 | } |
345 | |
346 | int QZ_IconifyWindow (_THIS) { |
347 | |
348 | if ( ! [ qz_window isMiniaturized ] ) { |
349 | [ qz_window miniaturize:nil ]; |
350 | if ( ! [ qz_window isMiniaturized ] ) { |
351 | SDL_SetError ("window iconification failed"); |
352 | return 0; |
353 | } |
354 | return 1; |
355 | } |
356 | else { |
357 | SDL_SetError ("window already iconified"); |
358 | return 0; |
359 | } |
360 | } |
361 | |
362 | /* |
363 | int QZ_GetWMInfo (_THIS, SDL_SysWMinfo *info) { |
364 | info->nsWindowPtr = qz_window; |
365 | return 0; |
366 | }*/ |
367 | |
368 | void QZ_ChangeGrabState (_THIS, int action) { |
369 | |
370 | /* |
371 | Figure out what the next state should be based on the action. |
372 | Ignore actions that can't change the current state. |
373 | */ |
374 | if ( grab_state == QZ_UNGRABBED ) { |
375 | if ( action == QZ_ENABLE_GRAB ) { |
376 | if ( cursor_should_be_visible ) |
377 | grab_state = QZ_VISIBLE_GRAB; |
378 | else |
379 | grab_state = QZ_INVISIBLE_GRAB; |
380 | } |
381 | } |
382 | else if ( grab_state == QZ_VISIBLE_GRAB ) { |
383 | if ( action == QZ_DISABLE_GRAB ) |
384 | grab_state = QZ_UNGRABBED; |
385 | else if ( action == QZ_HIDECURSOR ) |
386 | grab_state = QZ_INVISIBLE_GRAB; |
387 | } |
388 | else { |
389 | assert( grab_state == QZ_INVISIBLE_GRAB ); |
390 | |
391 | if ( action == QZ_DISABLE_GRAB ) |
392 | grab_state = QZ_UNGRABBED; |
393 | else if ( action == QZ_SHOWCURSOR ) |
394 | grab_state = QZ_VISIBLE_GRAB; |
395 | } |
396 | |
397 | /* now apply the new state */ |
398 | if (grab_state == QZ_UNGRABBED) { |
399 | |
400 | CGAssociateMouseAndMouseCursorPosition (1); |
401 | } |
402 | else if (grab_state == QZ_VISIBLE_GRAB) { |
403 | |
404 | CGAssociateMouseAndMouseCursorPosition (1); |
405 | } |
406 | else { |
407 | assert( grab_state == QZ_INVISIBLE_GRAB ); |
408 | |
409 | QZ_PrivateWarpCursor (this, SDL_VideoSurface->w / 2, SDL_VideoSurface->h / 2); |
410 | CGAssociateMouseAndMouseCursorPosition (0); |
411 | } |
412 | } |
413 | |
414 | SDL_GrabMode QZ_GrabInput (_THIS, SDL_GrabMode grab_mode) { |
415 | |
416 | int doGrab = grab_mode & SDL_GRAB_ON; |
417 | /*int fullscreen = grab_mode & SDL_GRAB_FULLSCREEN;*/ |
418 | |
419 | if ( this->screen == NULL ) { |
420 | SDL_SetError ("QZ_GrabInput: screen is NULL"); |
421 | return SDL_GRAB_OFF; |
422 | } |
423 | |
424 | if ( ! video_set ) { |
425 | /*SDL_SetError ("QZ_GrabInput: video is not set, grab will take effect on mode switch"); */ |
426 | current_grab_mode = grab_mode; |
427 | return grab_mode; /* Will be set later on mode switch */ |
428 | } |
429 | |
430 | if ( grab_mode != SDL_GRAB_QUERY ) { |
431 | if ( doGrab ) |
432 | QZ_ChangeGrabState (this, QZ_ENABLE_GRAB); |
433 | else |
434 | QZ_ChangeGrabState (this, QZ_DISABLE_GRAB); |
435 | |
436 | current_grab_mode = doGrab ? SDL_GRAB_ON : SDL_GRAB_OFF; |
437 | } |
438 | |
439 | return current_grab_mode; |
440 | } |