e14743d1 |
1 | |
2 | /* Test out the window manager interaction functions */ |
3 | |
4 | #include <stdio.h> |
5 | #include <stdlib.h> |
6 | #include <string.h> |
7 | |
8 | #include "SDL.h" |
9 | |
10 | /* Is the cursor visible? */ |
11 | static int visible = 1; |
12 | |
13 | static Uint8 video_bpp; |
14 | static Uint32 video_flags; |
15 | |
16 | /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */ |
17 | static void quit(int rc) |
18 | { |
19 | SDL_Quit(); |
20 | exit(rc); |
21 | } |
22 | |
23 | int SetVideoMode(int w, int h) |
24 | { |
25 | SDL_Surface *screen; |
26 | int i; |
27 | Uint8 *buffer; |
28 | SDL_Color palette[256]; |
29 | |
30 | screen = SDL_SetVideoMode(w, h, video_bpp, video_flags); |
31 | if ( screen == NULL ) { |
32 | fprintf(stderr, "Couldn't set %dx%dx%d video mode: %s\n", |
33 | w, h, video_bpp, SDL_GetError()); |
34 | return(-1); |
35 | } |
36 | printf("Running in %s mode\n", screen->flags & SDL_FULLSCREEN ? |
37 | "fullscreen" : "windowed"); |
38 | |
39 | /* Set the surface pixels and refresh! */ |
40 | for ( i=0; i<256; ++i ) { |
41 | palette[i].r = 255-i; |
42 | palette[i].g = 255-i; |
43 | palette[i].b = 255-i; |
44 | } |
45 | SDL_SetColors(screen, palette, 0, 256); |
46 | if ( SDL_LockSurface(screen) < 0 ) { |
47 | fprintf(stderr, "Couldn't lock display surface: %s\n", |
48 | SDL_GetError()); |
49 | return(-1); |
50 | } |
51 | buffer = (Uint8 *)screen->pixels; |
52 | for ( i=0; i<screen->h; ++i ) { |
53 | memset(buffer,(i*255)/screen->h, |
54 | screen->w*screen->format->BytesPerPixel); |
55 | buffer += screen->pitch; |
56 | } |
57 | SDL_UnlockSurface(screen); |
58 | SDL_UpdateRect(screen, 0, 0, 0, 0); |
59 | |
60 | return(0); |
61 | } |
62 | |
63 | SDL_Surface *LoadIconSurface(char *file, Uint8 **maskp) |
64 | { |
65 | SDL_Surface *icon; |
66 | Uint8 *pixels; |
67 | Uint8 *mask; |
68 | int mlen, i, j; |
69 | |
70 | *maskp = NULL; |
71 | |
72 | /* Load the icon surface */ |
73 | icon = SDL_LoadBMP(file); |
74 | if ( icon == NULL ) { |
75 | fprintf(stderr, "Couldn't load %s: %s\n", file, SDL_GetError()); |
76 | return(NULL); |
77 | } |
78 | |
79 | /* Check width and height |
80 | if ( (icon->w%8) != 0 ) { |
81 | fprintf(stderr, "Icon width must be a multiple of 8!\n"); |
82 | SDL_FreeSurface(icon); |
83 | return(NULL); |
84 | } |
85 | */ |
86 | |
87 | |
88 | if ( icon->format->palette == NULL ) { |
89 | fprintf(stderr, "Icon must have a palette!\n"); |
90 | SDL_FreeSurface(icon); |
91 | return(NULL); |
92 | } |
93 | |
94 | /* Set the colorkey */ |
95 | SDL_SetColorKey(icon, SDL_SRCCOLORKEY, *((Uint8 *)icon->pixels)); |
96 | |
97 | /* Create the mask */ |
98 | pixels = (Uint8 *)icon->pixels; |
99 | printf("Transparent pixel: (%d,%d,%d)\n", |
100 | icon->format->palette->colors[*pixels].r, |
101 | icon->format->palette->colors[*pixels].g, |
102 | icon->format->palette->colors[*pixels].b); |
103 | mlen = (icon->w*icon->h + 7) / 8; |
104 | mask = (Uint8 *)malloc(mlen); |
105 | if ( mask == NULL ) { |
106 | fprintf(stderr, "Out of memory!\n"); |
107 | SDL_FreeSurface(icon); |
108 | return(NULL); |
109 | } |
110 | memset(mask, 0, mlen); |
111 | for ( i=0; i < icon->h; i++) |
112 | for (j=0; j < icon->w; j++) { |
113 | int pindex = i * icon->pitch + j; |
114 | int mindex = i * icon->w + j; |
115 | if ( pixels[pindex] != *pixels ) |
116 | mask[mindex>>3] |= 1 << (7 - (mindex & 7)); |
117 | } |
118 | *maskp = mask; |
119 | return(icon); |
120 | } |
121 | |
122 | void HotKey_ToggleFullScreen(void) |
123 | { |
124 | SDL_Surface *screen; |
125 | |
126 | screen = SDL_GetVideoSurface(); |
127 | if ( SDL_WM_ToggleFullScreen(screen) ) { |
128 | printf("Toggled fullscreen mode - now %s\n", |
129 | (screen->flags&SDL_FULLSCREEN) ? "fullscreen" : "windowed"); |
130 | } else { |
131 | printf("Unable to toggle fullscreen mode\n"); |
132 | video_flags ^= SDL_FULLSCREEN; |
133 | SetVideoMode(screen->w, screen->h); |
134 | } |
135 | } |
136 | |
137 | void HotKey_ToggleGrab(void) |
138 | { |
139 | SDL_GrabMode mode; |
140 | |
141 | printf("Ctrl-G: toggling input grab!\n"); |
142 | mode = SDL_WM_GrabInput(SDL_GRAB_QUERY); |
143 | if ( mode == SDL_GRAB_ON ) { |
144 | printf("Grab was on\n"); |
145 | } else { |
146 | printf("Grab was off\n"); |
147 | } |
148 | mode = SDL_WM_GrabInput(mode ? SDL_GRAB_OFF : SDL_GRAB_ON); |
149 | if ( mode == SDL_GRAB_ON ) { |
150 | printf("Grab is now on\n"); |
151 | } else { |
152 | printf("Grab is now off\n"); |
153 | } |
154 | } |
155 | |
156 | void HotKey_Iconify(void) |
157 | { |
158 | printf("Ctrl-Z: iconifying window!\n"); |
159 | SDL_WM_IconifyWindow(); |
160 | } |
161 | |
162 | void HotKey_Quit(void) |
163 | { |
164 | SDL_Event event; |
165 | |
166 | printf("Posting internal quit request\n"); |
167 | event.type = SDL_USEREVENT; |
168 | SDL_PushEvent(&event); |
169 | } |
170 | |
171 | static void print_modifiers(void) |
172 | { |
173 | int mod; |
174 | printf(" modifiers:"); |
175 | mod = SDL_GetModState(); |
176 | if(!mod) { |
177 | printf(" (none)"); |
178 | return; |
179 | } |
180 | if(mod & KMOD_LSHIFT) |
181 | printf(" LSHIFT"); |
182 | if(mod & KMOD_RSHIFT) |
183 | printf(" RSHIFT"); |
184 | if(mod & KMOD_LCTRL) |
185 | printf(" LCTRL"); |
186 | if(mod & KMOD_RCTRL) |
187 | printf(" RCTRL"); |
188 | if(mod & KMOD_LALT) |
189 | printf(" LALT"); |
190 | if(mod & KMOD_RALT) |
191 | printf(" RALT"); |
192 | if(mod & KMOD_LMETA) |
193 | printf(" LMETA"); |
194 | if(mod & KMOD_RMETA) |
195 | printf(" RMETA"); |
196 | if(mod & KMOD_NUM) |
197 | printf(" NUM"); |
198 | if(mod & KMOD_CAPS) |
199 | printf(" CAPS"); |
200 | if(mod & KMOD_MODE) |
201 | printf(" MODE"); |
202 | } |
203 | |
204 | static void PrintKey(const SDL_keysym *sym, int pressed) |
205 | { |
206 | /* Print the keycode, name and state */ |
207 | if ( sym->sym ) { |
208 | printf("Key %s: %d-%s ", pressed ? "pressed" : "released", |
209 | sym->sym, SDL_GetKeyName(sym->sym)); |
210 | } else { |
211 | printf("Unknown Key (scancode = %d) %s ", sym->scancode, |
212 | pressed ? "pressed" : "released"); |
213 | } |
214 | |
215 | /* Print the translated character, if one exists */ |
216 | if ( sym->unicode ) { |
217 | /* Is it a control-character? */ |
218 | if ( sym->unicode < ' ' ) { |
219 | printf(" (^%c)", sym->unicode+'@'); |
220 | } else { |
221 | #ifdef UNICODE |
222 | printf(" (%c)", sym->unicode); |
223 | #else |
224 | /* This is a Latin-1 program, so only show 8-bits */ |
225 | if ( !(sym->unicode & 0xFF00) ) |
226 | printf(" (%c)", sym->unicode); |
227 | else |
228 | printf(" (0x%X)", sym->unicode); |
229 | #endif |
230 | } |
231 | } |
232 | print_modifiers(); |
233 | printf("\n"); |
234 | } |
235 | |
236 | int SDLCALL FilterEvents(const SDL_Event *event) |
237 | { |
238 | static int reallyquit = 0; |
239 | |
240 | switch (event->type) { |
241 | |
242 | case SDL_ACTIVEEVENT: |
243 | /* See what happened */ |
244 | printf("App %s ", |
245 | event->active.gain ? "gained" : "lost"); |
246 | if ( event->active.state & SDL_APPACTIVE ) |
247 | printf("active "); |
248 | if ( event->active.state & SDL_APPINPUTFOCUS ) |
249 | printf("input "); |
250 | if ( event->active.state & SDL_APPMOUSEFOCUS ) |
251 | printf("mouse "); |
252 | printf("focus\n"); |
253 | |
254 | /* See if we are iconified or restored */ |
255 | if ( event->active.state & SDL_APPACTIVE ) { |
256 | printf("App has been %s\n", |
257 | event->active.gain ? |
258 | "restored" : "iconified"); |
259 | } |
260 | return(0); |
261 | |
262 | /* We want to toggle visibility on buttonpress */ |
263 | case SDL_MOUSEBUTTONDOWN: |
264 | case SDL_MOUSEBUTTONUP: |
265 | if ( event->button.state == SDL_PRESSED ) { |
266 | visible = !visible; |
267 | SDL_ShowCursor(visible); |
268 | } |
269 | printf("Mouse button %d has been %s\n", |
270 | event->button.button, |
271 | (event->button.state == SDL_PRESSED) ? |
272 | "pressed" : "released"); |
273 | return(0); |
274 | |
275 | /* Show relative mouse motion */ |
276 | case SDL_MOUSEMOTION: |
277 | #if 0 |
278 | printf("Mouse motion: {%d,%d} (%d,%d)\n", |
279 | event->motion.x, event->motion.y, |
280 | event->motion.xrel, event->motion.yrel); |
281 | #endif |
282 | return(0); |
283 | |
284 | case SDL_KEYDOWN: |
285 | PrintKey(&event->key.keysym, 1); |
286 | if ( event->key.keysym.sym == SDLK_ESCAPE ) { |
287 | HotKey_Quit(); |
288 | } |
289 | if ( (event->key.keysym.sym == SDLK_g) && |
290 | (event->key.keysym.mod & KMOD_CTRL) ) { |
291 | HotKey_ToggleGrab(); |
292 | } |
293 | if ( (event->key.keysym.sym == SDLK_z) && |
294 | (event->key.keysym.mod & KMOD_CTRL) ) { |
295 | HotKey_Iconify(); |
296 | } |
297 | if ( (event->key.keysym.sym == SDLK_RETURN) && |
298 | (event->key.keysym.mod & KMOD_ALT) ) { |
299 | HotKey_ToggleFullScreen(); |
300 | } |
301 | return(0); |
302 | |
303 | case SDL_KEYUP: |
304 | PrintKey(&event->key.keysym, 0); |
305 | return(0); |
306 | |
307 | /* Pass the video resize event through .. */ |
308 | case SDL_VIDEORESIZE: |
309 | return(1); |
310 | |
311 | /* This is important! Queue it if we want to quit. */ |
312 | case SDL_QUIT: |
313 | if ( ! reallyquit ) { |
314 | reallyquit = 1; |
315 | printf("Quit requested\n"); |
316 | return(0); |
317 | } |
318 | printf("Quit demanded\n"); |
319 | return(1); |
320 | |
321 | /* This will never happen because events queued directly |
322 | to the event queue are not filtered. |
323 | */ |
324 | case SDL_USEREVENT: |
325 | return(1); |
326 | |
327 | /* Drop all other events */ |
328 | default: |
329 | return(0); |
330 | } |
331 | } |
332 | |
333 | int main(int argc, char *argv[]) |
334 | { |
335 | SDL_Event event; |
336 | char *title; |
337 | SDL_Surface *icon; |
338 | Uint8 *icon_mask; |
339 | int parsed; |
340 | int w, h; |
341 | |
342 | if ( SDL_Init(SDL_INIT_VIDEO) < 0 ) { |
343 | fprintf(stderr, |
344 | "Couldn't initialize SDL: %s\n", SDL_GetError()); |
345 | return(1); |
346 | } |
347 | |
348 | /* Check command line arguments */ |
349 | w = 640; |
350 | h = 480; |
351 | video_bpp = 8; |
352 | video_flags = SDL_SWSURFACE; |
353 | parsed = 1; |
354 | while ( parsed ) { |
355 | if ( (argc >= 2) && (strcmp(argv[1], "-fullscreen") == 0) ) { |
356 | video_flags |= SDL_FULLSCREEN; |
357 | argc -= 1; |
358 | argv += 1; |
359 | } else |
360 | if ( (argc >= 2) && (strcmp(argv[1], "-resize") == 0) ) { |
361 | video_flags |= SDL_RESIZABLE; |
362 | argc -= 1; |
363 | argv += 1; |
364 | } else |
365 | if ( (argc >= 2) && (strcmp(argv[1], "-noframe") == 0) ) { |
366 | video_flags |= SDL_NOFRAME; |
367 | argc -= 1; |
368 | argv += 1; |
369 | } else |
370 | if ( (argc >= 3) && (strcmp(argv[1], "-width") == 0) ) { |
371 | w = atoi(argv[2]); |
372 | argc -= 2; |
373 | argv += 2; |
374 | } else |
375 | if ( (argc >= 3) && (strcmp(argv[1], "-height") == 0) ) { |
376 | h = atoi(argv[2]); |
377 | argc -= 2; |
378 | argv += 2; |
379 | } else |
380 | if ( (argc >= 3) && (strcmp(argv[1], "-bpp") == 0) ) { |
381 | video_bpp = atoi(argv[2]); |
382 | argc -= 2; |
383 | argv += 2; |
384 | } else { |
385 | parsed = 0; |
386 | } |
387 | } |
388 | |
389 | /* Set the icon -- this must be done before the first mode set */ |
390 | icon = LoadIconSurface("icon.bmp", &icon_mask); |
391 | if ( icon != NULL ) { |
392 | SDL_WM_SetIcon(icon, icon_mask); |
393 | } |
394 | if ( icon_mask != NULL ) |
395 | free(icon_mask); |
396 | |
397 | /* Set the title bar */ |
398 | if ( argv[1] == NULL ) |
399 | title = "Testing 1.. 2.. 3..."; |
400 | else |
401 | title = argv[1]; |
402 | SDL_WM_SetCaption(title, "testwm"); |
403 | |
404 | /* See if it's really set */ |
405 | SDL_WM_GetCaption(&title, NULL); |
406 | if ( title ) |
407 | printf("Title was set to: %s\n", title); |
408 | else |
409 | printf("No window title was set!\n"); |
410 | |
411 | /* Initialize the display */ |
412 | if ( SetVideoMode(w, h) < 0 ) { |
413 | quit(1); |
414 | } |
415 | |
416 | /* Set an event filter that discards everything but QUIT */ |
417 | SDL_SetEventFilter(FilterEvents); |
418 | |
419 | /* Loop, waiting for QUIT */ |
420 | while ( SDL_WaitEvent(&event) ) { |
421 | switch (event.type) { |
422 | case SDL_VIDEORESIZE: |
423 | printf("Got a resize event: %dx%d\n", |
424 | event.resize.w, event.resize.h); |
425 | SetVideoMode(event.resize.w, event.resize.h); |
426 | break; |
427 | case SDL_USEREVENT: |
428 | printf("Handling internal quit request\n"); |
429 | /* Fall through to the quit handler */ |
430 | case SDL_QUIT: |
431 | printf("Bye bye..\n"); |
432 | quit(0); |
433 | default: |
434 | /* This should never happen */ |
435 | printf("Warning: Event %d wasn't filtered\n", |
436 | event.type); |
437 | break; |
438 | } |
439 | } |
440 | printf("SDL_WaitEvent() error: %s\n", SDL_GetError()); |
441 | SDL_Quit(); |
442 | return(255); |
443 | } |