Mercurial > sdl-ios-xcode
annotate test/testwm.c @ 4564:5002d6aeb85c SDL-1.2
Use proper GEM API to handle mouse button events
| author | Patrice Mandin <patmandin@gmail.com> |
|---|---|
| date | Fri, 09 Jul 2010 17:19:18 +0200 |
| parents | 14195cfdb66e |
| children |
| rev | line source |
|---|---|
| 0 | 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 | |
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13 static Uint8 video_bpp; |
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14 static Uint32 video_flags; |
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15 |
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16 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */ |
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17 static void quit(int rc) |
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18 { |
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19 SDL_Quit(); |
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20 exit(rc); |
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21 } |
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22 |
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23 int SetVideoMode(int w, int h) |
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24 { |
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25 SDL_Surface *screen; |
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26 int i; |
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27 Uint8 *buffer; |
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28 SDL_Color palette[256]; |
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29 |
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30 screen = SDL_SetVideoMode(w, h, video_bpp, video_flags); |
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31 if ( screen == NULL ) { |
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32 fprintf(stderr, "Couldn't set %dx%dx%d video mode: %s\n", |
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33 w, h, video_bpp, SDL_GetError()); |
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34 return(-1); |
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35 } |
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36 printf("Running in %s mode\n", screen->flags & SDL_FULLSCREEN ? |
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37 "fullscreen" : "windowed"); |
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38 |
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39 /* Set the surface pixels and refresh! */ |
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40 for ( i=0; i<256; ++i ) { |
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41 palette[i].r = 255-i; |
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42 palette[i].g = 255-i; |
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43 palette[i].b = 255-i; |
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44 } |
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45 SDL_SetColors(screen, palette, 0, 256); |
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46 if ( SDL_LockSurface(screen) < 0 ) { |
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47 fprintf(stderr, "Couldn't lock display surface: %s\n", |
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48 SDL_GetError()); |
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49 return(-1); |
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50 } |
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51 buffer = (Uint8 *)screen->pixels; |
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52 for ( i=0; i<screen->h; ++i ) { |
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53 memset(buffer,(i*255)/screen->h, |
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54 screen->w*screen->format->BytesPerPixel); |
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55 buffer += screen->pitch; |
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56 } |
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57 SDL_UnlockSurface(screen); |
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58 SDL_UpdateRect(screen, 0, 0, 0, 0); |
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59 |
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60 return(0); |
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61 } |
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62 |
| 0 | 63 SDL_Surface *LoadIconSurface(char *file, Uint8 **maskp) |
| 64 { | |
| 65 SDL_Surface *icon; | |
| 66 Uint8 *pixels; | |
| 67 Uint8 *mask; | |
| 591 | 68 int mlen, i, j; |
| 0 | 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 | |
| 591 | 79 /* Check width and height |
| 0 | 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 } | |
| 591 | 85 */ |
| 86 | |
| 87 | |
| 0 | 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); | |
| 591 | 103 mlen = (icon->w*icon->h + 7) / 8; |
| 104 mask = (Uint8 *)malloc(mlen); | |
| 0 | 105 if ( mask == NULL ) { |
| 106 fprintf(stderr, "Out of memory!\n"); | |
| 107 SDL_FreeSurface(icon); | |
| 108 return(NULL); | |
| 109 } | |
| 591 | 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 } | |
| 0 | 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"); | |
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132 video_flags ^= SDL_FULLSCREEN; |
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133 SetVideoMode(screen->w, screen->h); |
| 0 | 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 } | |
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148 mode = SDL_WM_GrabInput(mode ? SDL_GRAB_OFF : SDL_GRAB_ON); |
| 0 | 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 | |
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171 static void print_modifiers(void) |
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172 { |
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173 int mod; |
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174 printf(" modifiers:"); |
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175 mod = SDL_GetModState(); |
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176 if(!mod) { |
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177 printf(" (none)"); |
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178 return; |
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179 } |
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180 if(mod & KMOD_LSHIFT) |
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181 printf(" LSHIFT"); |
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182 if(mod & KMOD_RSHIFT) |
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183 printf(" RSHIFT"); |
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184 if(mod & KMOD_LCTRL) |
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185 printf(" LCTRL"); |
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186 if(mod & KMOD_RCTRL) |
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187 printf(" RCTRL"); |
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188 if(mod & KMOD_LALT) |
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189 printf(" LALT"); |
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190 if(mod & KMOD_RALT) |
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191 printf(" RALT"); |
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192 if(mod & KMOD_LMETA) |
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193 printf(" LMETA"); |
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194 if(mod & KMOD_RMETA) |
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195 printf(" RMETA"); |
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196 if(mod & KMOD_NUM) |
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197 printf(" NUM"); |
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198 if(mod & KMOD_CAPS) |
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199 printf(" CAPS"); |
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200 if(mod & KMOD_MODE) |
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201 printf(" MODE"); |
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202 } |
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203 |
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204 static void PrintKey(const SDL_keysym *sym, int pressed) |
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205 { |
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206 /* Print the keycode, name and state */ |
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207 if ( sym->sym ) { |
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208 printf("Key %s: %d-%s ", pressed ? "pressed" : "released", |
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209 sym->sym, SDL_GetKeyName(sym->sym)); |
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210 } else { |
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211 printf("Unknown Key (scancode = %d) %s ", sym->scancode, |
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212 pressed ? "pressed" : "released"); |
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213 } |
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214 |
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215 /* Print the translated character, if one exists */ |
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216 if ( sym->unicode ) { |
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217 /* Is it a control-character? */ |
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218 if ( sym->unicode < ' ' ) { |
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219 printf(" (^%c)", sym->unicode+'@'); |
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220 } else { |
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221 #ifdef UNICODE |
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222 printf(" (%c)", sym->unicode); |
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223 #else |
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224 /* This is a Latin-1 program, so only show 8-bits */ |
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225 if ( !(sym->unicode & 0xFF00) ) |
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226 printf(" (%c)", sym->unicode); |
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227 else |
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228 printf(" (0x%X)", sym->unicode); |
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229 #endif |
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230 } |
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231 } |
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232 print_modifiers(); |
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233 printf("\n"); |
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234 } |
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235 |
| 1769 | 236 int SDLCALL FilterEvents(const SDL_Event *event) |
| 0 | 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 "); | |
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248 if ( event->active.state & SDL_APPINPUTFOCUS ) |
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249 printf("input "); |
| 0 | 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 | |
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278 printf("Mouse motion: {%d,%d} (%d,%d)\n", |
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279 event->motion.x, event->motion.y, |
| 0 | 280 event->motion.xrel, event->motion.yrel); |
| 281 #endif | |
| 282 return(0); | |
| 283 | |
| 284 case SDL_KEYDOWN: | |
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285 PrintKey(&event->key.keysym, 1); |
| 0 | 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 | |
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303 case SDL_KEYUP: |
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304 PrintKey(&event->key.keysym, 0); |
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305 return(0); |
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306 |
| 0 | 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; | |
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340 int w, h; |
| 0 | 341 |
| 342 if ( SDL_Init(SDL_INIT_VIDEO) < 0 ) { | |
| 343 fprintf(stderr, | |
| 344 "Couldn't initialize SDL: %s\n", SDL_GetError()); | |
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345 return(1); |
| 0 | 346 } |
| 347 | |
| 348 /* Check command line arguments */ | |
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349 w = 640; |
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350 h = 480; |
| 0 | 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 | |
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370 if ( (argc >= 3) && (strcmp(argv[1], "-width") == 0) ) { |
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371 w = atoi(argv[2]); |
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372 argc -= 2; |
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373 argv += 2; |
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374 } else |
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375 if ( (argc >= 3) && (strcmp(argv[1], "-height") == 0) ) { |
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376 h = atoi(argv[2]); |
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377 argc -= 2; |
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378 argv += 2; |
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379 } else |
| 0 | 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 */ | |
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412 if ( SetVideoMode(w, h) < 0 ) { |
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413 quit(1); |
| 0 | 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"); | |
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432 quit(0); |
| 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()); | |
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441 SDL_Quit(); |
| 0 | 442 return(255); |
| 443 } |