Mercurial > sdl-ios-xcode
annotate src/video/wincommon/SDL_sysevents.c @ 13:e30a8ce27c22
Fixed double-mouse event bug on Windows using OpenGL
author | Sam Lantinga <slouken@lokigames.com> |
---|---|
date | Sun, 29 Apr 2001 23:00:03 +0000 |
parents | cf2af46e9e2a |
children | 13ee9f4834ea |
rev | line source |
---|---|
0 | 1 /* |
2 SDL - Simple DirectMedia Layer | |
3 Copyright (C) 1997, 1998, 1999 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@devolution.com | |
21 */ | |
22 | |
23 #ifdef SAVE_RCSID | |
24 static char rcsid = | |
25 "@(#) $Id$"; | |
26 #endif | |
27 | |
28 #include <stdlib.h> | |
29 #include <stdio.h> | |
30 #include <windows.h> | |
31 | |
32 #include "SDL_getenv.h" | |
33 #include "SDL_events.h" | |
34 #include "SDL_video.h" | |
35 #include "SDL_error.h" | |
36 #include "SDL_syswm.h" | |
37 #include "SDL_sysevents.h" | |
38 #include "SDL_events_c.h" | |
39 #include "SDL_sysvideo.h" | |
40 #include "SDL_lowvideo.h" | |
41 #include "SDL_syswm_c.h" | |
42 #include "SDL_main.h" | |
43 | |
44 #ifdef WMMSG_DEBUG | |
45 #include "wmmsg.h" | |
46 #endif | |
47 | |
48 #ifdef _WIN32_WCE | |
49 #define NO_GETKEYBOARDSTATE | |
50 #endif | |
51 | |
52 /* The window we use for everything... */ | |
53 const char *SDL_Appname = NULL; | |
54 HINSTANCE SDL_Instance = NULL; | |
55 HWND SDL_Window = NULL; | |
56 RECT SDL_bounds = {0, 0, 0, 0}; | |
57 int SDL_resizing = 0; | |
58 int mouse_relative = 0; | |
59 int posted = 0; | |
60 | |
61 | |
62 /* Functions called by the message processing function */ | |
63 LONG | |
64 (*HandleMessage)(_THIS, HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)=NULL; | |
65 void (*WIN_RealizePalette)(_THIS); | |
66 void (*WIN_PaletteChanged)(_THIS, HWND window); | |
67 void (*WIN_SwapGamma)(_THIS); | |
68 void (*WIN_WinPAINT)(_THIS, HDC hdc); | |
69 | |
70 #ifdef WM_MOUSELEAVE | |
71 /* | |
72 Special code to handle mouse leave events - this sucks... | |
73 http://support.microsoft.com/support/kb/articles/q183/1/07.asp | |
74 | |
75 TrackMouseEvent() is only available on Win98 and WinNT. | |
76 _TrackMouseEvent() is available on Win95, but isn't yet in the mingw32 | |
77 development environment, and only works on systems that have had IE 3.0 | |
78 or newer installed on them (which is not the case with the base Win95). | |
79 Therefore, we implement our own version of _TrackMouseEvent() which | |
80 uses our own implementation if TrackMouseEvent() is not available. | |
81 */ | |
82 static BOOL (WINAPI *_TrackMouseEvent)(TRACKMOUSEEVENT *ptme) = NULL; | |
83 | |
84 static VOID CALLBACK | |
85 TrackMouseTimerProc(HWND hWnd, UINT uMsg, UINT idEvent, DWORD dwTime) | |
86 { | |
87 RECT rect; | |
88 POINT pt; | |
89 | |
90 GetClientRect(hWnd, &rect); | |
91 MapWindowPoints(hWnd, NULL, (LPPOINT)&rect, 2); | |
92 GetCursorPos(&pt); | |
93 if ( !PtInRect(&rect, pt) || (WindowFromPoint(pt) != hWnd) ) { | |
94 if ( !KillTimer(hWnd, idEvent) ) { | |
95 /* Error killing the timer! */ | |
96 } | |
97 PostMessage(hWnd, WM_MOUSELEAVE, 0, 0); | |
98 } | |
99 } | |
100 static BOOL WINAPI WIN_TrackMouseEvent(TRACKMOUSEEVENT *ptme) | |
101 { | |
102 if ( ptme->dwFlags == TME_LEAVE ) { | |
103 return SetTimer(ptme->hwndTrack, ptme->dwFlags, 100, | |
104 (TIMERPROC)TrackMouseTimerProc); | |
105 } | |
106 return FALSE; | |
107 } | |
108 #endif /* WM_MOUSELEAVE */ | |
109 | |
110 /* Function to retrieve the current keyboard modifiers */ | |
111 static void WIN_GetKeyboardState(void) | |
112 { | |
113 #ifndef NO_GETKEYBOARDSTATE | |
114 SDLMod state; | |
115 BYTE keyboard[256]; | |
116 | |
117 state = KMOD_NONE; | |
118 if ( GetKeyboardState(keyboard) ) { | |
119 if ( keyboard[VK_LSHIFT] & 0x80) { | |
120 state |= KMOD_LSHIFT; | |
121 } | |
122 if ( keyboard[VK_RSHIFT] & 0x80) { | |
123 state |= KMOD_RSHIFT; | |
124 } | |
125 if ( keyboard[VK_LCONTROL] & 0x80) { | |
126 state |= KMOD_LCTRL; | |
127 } | |
128 if ( keyboard[VK_RCONTROL] & 0x80) { | |
129 state |= KMOD_RCTRL; | |
130 } | |
131 if ( keyboard[VK_LMENU] & 0x80) { | |
132 state |= KMOD_LALT; | |
133 } | |
134 if ( keyboard[VK_RMENU] & 0x80) { | |
135 state |= KMOD_RALT; | |
136 } | |
1
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
137 if ( keyboard[VK_NUMLOCK] & 0x01) { |
0 | 138 state |= KMOD_NUM; |
139 } | |
1
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
140 if ( keyboard[VK_CAPITAL] & 0x01) { |
0 | 141 state |= KMOD_CAPS; |
142 } | |
143 } | |
144 SDL_SetModState(state); | |
145 #endif /* !NO_GETKEYBOARDSTATE */ | |
146 } | |
147 | |
148 /* The main Win32 event handler */ | |
149 static LONG CALLBACK WinMessage(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) | |
150 { | |
151 SDL_VideoDevice *this = current_video; | |
152 static int mouse_pressed = 0; | |
153 static int in_window = 0; | |
154 #ifdef WMMSG_DEBUG | |
155 fprintf(stderr, "Received windows message: "); | |
156 if ( msg > MAX_WMMSG ) { | |
157 fprintf(stderr, "%d", msg); | |
158 } else { | |
159 fprintf(stderr, "%s", wmtab[msg]); | |
160 } | |
161 fprintf(stderr, " -- 0x%X, 0x%X\n", wParam, lParam); | |
162 #endif | |
163 switch (msg) { | |
164 | |
165 case WM_ACTIVATE: { | |
166 SDL_VideoDevice *this = current_video; | |
167 BOOL minimized; | |
168 Uint8 appstate; | |
169 | |
170 minimized = HIWORD(wParam); | |
171 if ( !minimized && (LOWORD(wParam) != WA_INACTIVE) ) { | |
172 /* Gain the following states */ | |
173 appstate = SDL_APPACTIVE|SDL_APPINPUTFOCUS; | |
174 if ( this->input_grab != SDL_GRAB_OFF ) { | |
175 WIN_GrabInput(this, SDL_GRAB_ON); | |
176 } | |
177 if ( !(SDL_GetAppState()&SDL_APPINPUTFOCUS) ) { | |
178 WIN_SwapGamma(this); | |
179 } | |
180 posted = SDL_PrivateAppActive(1, appstate); | |
181 WIN_GetKeyboardState(); | |
182 } else { | |
183 /* Lose the following states */ | |
184 appstate = SDL_APPINPUTFOCUS; | |
185 if ( minimized ) { | |
186 appstate |= SDL_APPACTIVE; | |
187 } | |
188 if ( this->input_grab != SDL_GRAB_OFF ) { | |
189 WIN_GrabInput(this, SDL_GRAB_OFF); | |
190 } | |
191 if ( SDL_GetAppState() & SDL_APPINPUTFOCUS ) { | |
192 WIN_SwapGamma(this); | |
193 } | |
194 posted = SDL_PrivateAppActive(0, appstate); | |
195 } | |
196 return(0); | |
197 } | |
198 break; | |
199 | |
200 case WM_MOUSEMOVE: { | |
201 | |
202 /* Mouse is handled by DirectInput when fullscreen */ | |
13
e30a8ce27c22
Fixed double-mouse event bug on Windows using OpenGL
Sam Lantinga <slouken@lokigames.com>
parents:
1
diff
changeset
|
203 if ( SDL_VideoSurface && ! DINPUT_FULLSCREEN() ) { |
0 | 204 Sint16 x, y; |
205 | |
206 /* mouse has entered the window */ | |
207 if ( ! in_window ) { | |
208 #ifdef WM_MOUSELEAVE | |
209 TRACKMOUSEEVENT tme; | |
210 | |
211 tme.cbSize = sizeof(tme); | |
212 tme.dwFlags = TME_LEAVE; | |
213 tme.hwndTrack = SDL_Window; | |
214 _TrackMouseEvent(&tme); | |
215 #endif /* WM_MOUSELEAVE */ | |
216 in_window = TRUE; | |
217 | |
218 posted = SDL_PrivateAppActive(1, SDL_APPMOUSEFOCUS); | |
219 } | |
220 | |
221 /* mouse has moved within the window */ | |
222 x = LOWORD(lParam); | |
223 y = HIWORD(lParam); | |
224 if ( mouse_relative ) { | |
225 POINT center; | |
226 center.x = (SDL_VideoSurface->w/2); | |
227 center.y = (SDL_VideoSurface->h/2); | |
228 x -= (Sint16)center.x; | |
229 y -= (Sint16)center.y; | |
230 if ( x || y ) { | |
231 ClientToScreen(SDL_Window, ¢er); | |
232 SetCursorPos(center.x, center.y); | |
233 posted = SDL_PrivateMouseMotion(0, 1, x, y); | |
234 } | |
235 } else { | |
236 posted = SDL_PrivateMouseMotion(0, 0, x, y); | |
237 } | |
238 } | |
239 } | |
240 return(0); | |
241 | |
242 #ifdef WM_MOUSELEAVE | |
243 case WM_MOUSELEAVE: { | |
244 | |
245 /* Mouse is handled by DirectInput when fullscreen */ | |
13
e30a8ce27c22
Fixed double-mouse event bug on Windows using OpenGL
Sam Lantinga <slouken@lokigames.com>
parents:
1
diff
changeset
|
246 if ( SDL_VideoSurface && ! DINPUT_FULLSCREEN() ) { |
0 | 247 /* mouse has left the window */ |
248 /* or */ | |
249 /* Elvis has left the building! */ | |
250 in_window = FALSE; | |
251 posted = SDL_PrivateAppActive(0, SDL_APPMOUSEFOCUS); | |
252 } | |
253 } | |
254 return(0); | |
255 #endif /* WM_MOUSELEAVE */ | |
256 | |
257 case WM_LBUTTONDOWN: | |
258 case WM_LBUTTONUP: | |
259 case WM_MBUTTONDOWN: | |
260 case WM_MBUTTONUP: | |
261 case WM_RBUTTONDOWN: | |
262 case WM_RBUTTONUP: { | |
263 /* Mouse is handled by DirectInput when fullscreen */ | |
13
e30a8ce27c22
Fixed double-mouse event bug on Windows using OpenGL
Sam Lantinga <slouken@lokigames.com>
parents:
1
diff
changeset
|
264 if ( SDL_VideoSurface && ! DINPUT_FULLSCREEN() ) { |
0 | 265 Sint16 x, y; |
266 Uint8 button, state; | |
267 | |
268 /* Figure out which button to use */ | |
269 switch (msg) { | |
270 case WM_LBUTTONDOWN: | |
271 button = 1; | |
272 state = SDL_PRESSED; | |
273 break; | |
274 case WM_LBUTTONUP: | |
275 button = 1; | |
276 state = SDL_RELEASED; | |
277 break; | |
278 case WM_MBUTTONDOWN: | |
279 button = 2; | |
280 state = SDL_PRESSED; | |
281 break; | |
282 case WM_MBUTTONUP: | |
283 button = 2; | |
284 state = SDL_RELEASED; | |
285 break; | |
286 case WM_RBUTTONDOWN: | |
287 button = 3; | |
288 state = SDL_PRESSED; | |
289 break; | |
290 case WM_RBUTTONUP: | |
291 button = 3; | |
292 state = SDL_RELEASED; | |
293 break; | |
294 default: | |
295 /* Eh? Unknown button? */ | |
296 return(0); | |
297 } | |
298 if ( state == SDL_PRESSED ) { | |
299 /* Grab mouse so we get up events */ | |
300 if ( ++mouse_pressed > 0 ) { | |
301 SetCapture(hwnd); | |
302 } | |
303 } else { | |
304 /* Release mouse after all up events */ | |
305 if ( --mouse_pressed <= 0 ) { | |
306 ReleaseCapture(); | |
307 mouse_pressed = 0; | |
308 } | |
309 } | |
310 if ( mouse_relative ) { | |
311 /* RJR: March 28, 2000 | |
312 report internal mouse position if in relative mode */ | |
313 x = 0; y = 0; | |
314 } else { | |
315 x = (Sint16)LOWORD(lParam); | |
316 y = (Sint16)HIWORD(lParam); | |
317 } | |
318 posted = SDL_PrivateMouseButton( | |
319 state, button, x, y); | |
320 } | |
321 } | |
322 return(0); | |
323 | |
324 #ifdef WM_GETMINMAXINFO | |
325 /* This message is sent as a way for us to "check" the values | |
326 * of a position change. If we don't like it, we can adjust | |
327 * the values before they are changed. | |
328 */ | |
329 case WM_GETMINMAXINFO: { | |
330 MINMAXINFO *info; | |
331 RECT size; | |
332 int x, y; | |
333 int width; | |
334 int height; | |
335 | |
336 /* We don't want to clobber an internal resize */ | |
337 if ( SDL_resizing ) | |
338 return(0); | |
339 | |
340 /* We allow resizing with the SDL_RESIZABLE flag */ | |
341 if ( SDL_PublicSurface && | |
342 (SDL_PublicSurface->flags & SDL_RESIZABLE) ) { | |
343 return(0); | |
344 } | |
345 | |
346 /* Get the current position of our window */ | |
347 GetWindowRect(SDL_Window, &size); | |
348 x = size.left; | |
349 y = size.top; | |
350 | |
351 /* Calculate current width and height of our window */ | |
352 size.top = 0; | |
353 size.left = 0; | |
354 if ( SDL_PublicSurface != NULL ) { | |
355 size.bottom = SDL_PublicSurface->h; | |
356 size.right = SDL_PublicSurface->w; | |
357 } else { | |
358 size.bottom = 0; | |
359 size.right = 0; | |
360 } | |
361 AdjustWindowRect(&size, GetWindowLong(hwnd, GWL_STYLE), | |
362 FALSE); | |
363 width = size.right - size.left; | |
364 height = size.bottom - size.top; | |
365 | |
366 /* Fix our size to the current size */ | |
367 info = (MINMAXINFO *)lParam; | |
368 info->ptMaxSize.x = width; | |
369 info->ptMaxSize.y = height; | |
370 info->ptMaxPosition.x = x; | |
371 info->ptMaxPosition.y = y; | |
372 info->ptMinTrackSize.x = width; | |
373 info->ptMinTrackSize.y = height; | |
374 info->ptMaxTrackSize.x = width; | |
375 info->ptMaxTrackSize.y = height; | |
376 } | |
377 return(0); | |
378 #endif /* WM_GETMINMAXINFO */ | |
379 | |
380 case WM_MOVE: { | |
381 SDL_VideoDevice *this = current_video; | |
382 | |
383 GetClientRect(SDL_Window, &SDL_bounds); | |
384 ClientToScreen(SDL_Window, (LPPOINT)&SDL_bounds); | |
385 ClientToScreen(SDL_Window, (LPPOINT)&SDL_bounds+1); | |
386 if ( this->input_grab != SDL_GRAB_OFF ) { | |
387 ClipCursor(&SDL_bounds); | |
388 } | |
389 } | |
390 break; | |
391 | |
392 case WM_SIZE: { | |
393 if ( SDL_PublicSurface && | |
394 (SDL_PublicSurface->flags & SDL_RESIZABLE) ) { | |
395 SDL_PrivateResize(LOWORD(lParam), HIWORD(lParam)); | |
396 } | |
397 return(0); | |
398 } | |
399 break; | |
400 | |
401 /* We need to set the cursor */ | |
402 case WM_SETCURSOR: { | |
403 Uint16 hittest; | |
404 | |
405 hittest = LOWORD(lParam); | |
406 if ( hittest == HTCLIENT ) { | |
407 SetCursor(SDL_hcursor); | |
408 return(TRUE); | |
409 } | |
410 } | |
411 break; | |
412 | |
413 /* We are about to get palette focus! */ | |
414 case WM_QUERYNEWPALETTE: { | |
415 WIN_RealizePalette(current_video); | |
416 return(TRUE); | |
417 } | |
418 break; | |
419 | |
420 /* Another application changed the palette */ | |
421 case WM_PALETTECHANGED: { | |
422 WIN_PaletteChanged(current_video, (HWND)wParam); | |
423 } | |
424 break; | |
425 | |
426 /* We were occluded, refresh our display */ | |
427 case WM_PAINT: { | |
428 HDC hdc; | |
429 PAINTSTRUCT ps; | |
430 | |
431 hdc = BeginPaint(SDL_Window, &ps); | |
432 if ( current_video->screen && | |
433 !(current_video->screen->flags & SDL_OPENGL) ) { | |
434 WIN_WinPAINT(current_video, hdc); | |
435 } | |
436 EndPaint(SDL_Window, &ps); | |
437 } | |
438 return(0); | |
439 | |
440 case WM_ERASEBKGND: { | |
441 /* Just do nothing */ ; | |
442 } | |
443 return(1); | |
444 | |
445 case WM_CLOSE: { | |
446 if ( (posted = SDL_PrivateQuit()) ) | |
447 PostQuitMessage(0); | |
448 } | |
449 return(0); | |
450 | |
451 case WM_DESTROY: { | |
452 PostQuitMessage(0); | |
453 } | |
454 return(0); | |
455 | |
456 default: { | |
457 /* Special handling by the video driver */ | |
458 if (HandleMessage) { | |
459 return(HandleMessage(current_video, | |
460 hwnd, msg, wParam, lParam)); | |
461 } | |
462 } | |
463 break; | |
464 } | |
465 return(DefWindowProc(hwnd, msg, wParam, lParam)); | |
466 } | |
467 | |
468 /* This allows the SDL_WINDOWID hack */ | |
469 const char *SDL_windowid = NULL; | |
470 | |
471 /* Register the class for this application -- exported for winmain.c */ | |
472 int SDL_RegisterApp(char *name, Uint32 style, void *hInst) | |
473 { | |
474 static int initialized = 0; | |
475 WNDCLASS class; | |
476 #ifdef WM_MOUSELEAVE | |
477 HMODULE handle; | |
478 #endif | |
479 | |
480 /* Only do this once... */ | |
481 if ( initialized ) { | |
482 return(0); | |
483 } | |
484 | |
485 /* This function needs to be passed the correct process handle | |
486 by the application. The following call just returns a handle | |
487 to the SDL DLL, which is useless for our purposes and causes | |
488 DirectInput to fail to initialize. | |
489 */ | |
490 if ( ! hInst ) { | |
491 hInst = GetModuleHandle(NULL); | |
492 } | |
493 | |
494 /* Register the application class */ | |
495 class.hCursor = NULL; | |
496 #ifdef _WIN32_WCE | |
497 { | |
498 /* WinCE uses the UNICODE version */ | |
499 int nLen = strlen(name); | |
500 LPWSTR lpszW = alloca((nLen+1)*2); | |
501 MultiByteToWideChar(CP_ACP, 0, name, -1, lpszW, nLen); | |
502 class.hIcon = LoadImage(hInst, lpszW, IMAGE_ICON, | |
503 0, 0, LR_DEFAULTCOLOR); | |
504 class.lpszMenuName = lpszW; | |
505 class.lpszClassName = lpszW; | |
506 } | |
507 #else | |
508 class.hIcon = LoadImage(hInst, name, IMAGE_ICON, | |
509 0, 0, LR_DEFAULTCOLOR); | |
510 class.lpszMenuName = "(none)"; | |
511 class.lpszClassName = name; | |
512 #endif /* _WIN32_WCE */ | |
513 class.hbrBackground = NULL; | |
514 class.hInstance = hInst ? hInst : GetModuleHandle(0); | |
515 class.style = style; | |
516 #ifdef HAVE_OPENGL | |
517 class.style |= CS_OWNDC; | |
518 #endif | |
519 class.lpfnWndProc = WinMessage; | |
520 class.cbWndExtra = 0; | |
521 class.cbClsExtra = 0; | |
522 if ( ! RegisterClass(&class) ) { | |
523 SDL_SetError("Couldn't register application class"); | |
524 return(-1); | |
525 } | |
526 SDL_Appname = name; | |
527 SDL_Instance = hInst; | |
528 | |
529 #ifdef WM_MOUSELEAVE | |
530 /* Get the version of TrackMouseEvent() we use */ | |
531 _TrackMouseEvent = NULL; | |
532 handle = GetModuleHandle("USER32.DLL"); | |
533 if ( handle ) { | |
534 _TrackMouseEvent = (BOOL (WINAPI *)(TRACKMOUSEEVENT *))GetProcAddress(handle, "TrackMouseEvent"); | |
535 } | |
536 if ( _TrackMouseEvent == NULL ) { | |
537 _TrackMouseEvent = WIN_TrackMouseEvent; | |
538 } | |
539 #endif /* WM_MOUSELEAVE */ | |
540 | |
541 /* Check for SDL_WINDOWID hack */ | |
542 SDL_windowid = getenv("SDL_WINDOWID"); | |
543 | |
544 initialized = 1; | |
545 return(0); | |
546 } | |
547 |