git.r.bdr.sh - rbdr/pico-engine/blob - SDLMain.m

   1 /*   SDLMain.m - main entry point for our Cocoa-ized SDL app
   2  Initial Version: Darrell Walisser <dwaliss1@purdue.edu>
   3  Non-NIB-Code & other changes: Max Horn <max@quendi.de>
   4
   5  Feel free to customize this file to suit your needs
   6  */
   7
   8 #include "SDL/SDL.h"
   9 #include "SDLMain.h"
  10 #include <sys/param.h> /* for MAXPATHLEN */
  11 #include <unistd.h>
  12
  13 /* For some reaon, Apple removed setAppleMenu from the headers in 10.4,
  14  but the method still is there and works. To avoid warnings, we declare
  15  it ourselves here. */
  16 @interface NSApplication(SDL_Missing_Methods)
  17 - (void)setAppleMenu:(NSMenu *)menu;
  18 @end
  19
  20 /* Use this flag to determine whether we use SDLMain.nib or not */
  21 #define         SDL_USE_NIB_FILE        0
  22
  23 /* Use this flag to determine whether we use CPS (docking) or not */
  24 #define         SDL_USE_CPS             1
  25 #ifdef SDL_USE_CPS
  26 /* Portions of CPS.h */
  27 typedef struct CPSProcessSerNum
  28 {
  29         UInt32          lo;
  30         UInt32          hi;
  31 } CPSProcessSerNum;
  32
  33 extern OSErr    CPSGetCurrentProcess( CPSProcessSerNum *psn);
  34 extern OSErr    CPSEnableForegroundOperation( CPSProcessSerNum *psn, UInt32 _arg2, UInt32 _arg3, UInt32 _arg4, UInt32 _arg5);
  35 extern OSErr    CPSSetFrontProcess( CPSProcessSerNum *psn);
  36
  37 #endif /* SDL_USE_CPS */
  38
  39 static int    gArgc;
  40 static char  **gArgv;
  41 static BOOL   gFinderLaunch;
  42 static BOOL   gCalledAppMainline = FALSE;
  43
  44 static NSString *getApplicationName(void)
  45 {
  46     const NSDictionary *dict;
  47     NSString *appName = 0;
  48
  49     /* Determine the application name */
  50     dict = (const NSDictionary *)CFBundleGetInfoDictionary(CFBundleGetMainBundle());
  51     if (dict)
  52         appName = [dict objectForKey: @"CFBundleName"];
  53
  54     if (![appName length])
  55         appName = [[NSProcessInfo processInfo] processName];
  56
  57     return appName;
  58 }
  59
  60 #if SDL_USE_NIB_FILE
  61 /* A helper category for NSString */
  62 @interface NSString (ReplaceSubString)
  63 - (NSString *)stringByReplacingRange:(NSRange)aRange with:(NSString *)aString;
  64 @end
  65 #endif
  66
  67 @interface NSApplication (SDLApplication)
  68 @end
  69
  70 @implementation NSApplication (SDLApplication)
  71 /* Invoked from the Quit menu item */
  72 - (void)terminate:(id)sender
  73 {
  74     /* Post a SDL_QUIT event */
  75     SDL_Event event;
  76     event.type = SDL_QUIT;
  77     SDL_PushEvent(&event);
  78 }
  79 @end
  80
  81 /* The main class of the application, the application's delegate */
  82 @implementation SDLMain
  83
  84 /* Set the working directory to the .app's parent directory */
  85 - (void) setupWorkingDirectory:(BOOL)shouldChdir
  86 {
  87     if (shouldChdir)
  88     {
  89         char parentdir[MAXPATHLEN];
  90         CFURLRef url = CFBundleCopyBundleURL(CFBundleGetMainBundle());
  91         CFURLRef url2 = CFURLCreateCopyDeletingLastPathComponent(0, url);
  92         if (CFURLGetFileSystemRepresentation(url2, 1, (UInt8 *)parentdir, MAXPATHLEN)) {
  93             chdir(parentdir);   /* chdir to the binary app's parent */
  94         }
  95         CFRelease(url);
  96         CFRelease(url2);
  97     }
  98 }
  99
 100 #if SDL_USE_NIB_FILE
 101
 102 /* Fix menu to contain the real app name instead of "SDL App" */
 103 - (void)fixMenu:(NSMenu *)aMenu withAppName:(NSString *)appName
 104 {
 105     NSRange aRange;
 106     NSEnumerator *enumerator;
 107     NSMenuItem *menuItem;
 108
 109     aRange = [[aMenu title] rangeOfString:@"SDL App"];
 110     if (aRange.length != 0)
 111         [aMenu setTitle: [[aMenu title] stringByReplacingRange:aRange with:appName]];
 112
 113     enumerator = [[aMenu itemArray] objectEnumerator];
 114     while ((menuItem = [enumerator nextObject]))
 115     {
 116         aRange = [[menuItem title] rangeOfString:@"SDL App"];
 117         if (aRange.length != 0)
 118             [menuItem setTitle: [[menuItem title] stringByReplacingRange:aRange with:appName]];
 119         if ([menuItem hasSubmenu])
 120             [self fixMenu:[menuItem submenu] withAppName:appName];
 121     }
 122 }
 123
 124 #else
 125
 126 static void setApplicationMenu(void)
 127 {
 128     /* warning: this code is very odd */
 129     NSMenu *appleMenu;
 130     NSMenuItem *menuItem;
 131     NSString *title;
 132     NSString *appName;
 133
 134     appName = getApplicationName();
 135     appleMenu = [[NSMenu alloc] initWithTitle:@""];
 136
 137     /* Add menu items */
 138     title = [@"About " stringByAppendingString:appName];
 139     [appleMenu addItemWithTitle:title action:@selector(orderFrontStandardAboutPanel:) keyEquivalent:@""];
 140
 141     [appleMenu addItem:[NSMenuItem separatorItem]];
 142
 143     title = [@"Hide " stringByAppendingString:appName];
 144     [appleMenu addItemWithTitle:title action:@selector(hide:) keyEquivalent:@"h"];
 145
 146     menuItem = (NSMenuItem *)[appleMenu addItemWithTitle:@"Hide Others" action:@selector(hideOtherApplications:) keyEquivalent:@"h"];
 147     [menuItem setKeyEquivalentModifierMask:(NSAlternateKeyMask|NSCommandKeyMask)];
 148
 149     [appleMenu addItemWithTitle:@"Show All" action:@selector(unhideAllApplications:) keyEquivalent:@""];
 150
 151     [appleMenu addItem:[NSMenuItem separatorItem]];
 152
 153     title = [@"Quit " stringByAppendingString:appName];
 154     [appleMenu addItemWithTitle:title action:@selector(terminate:) keyEquivalent:@"q"];
 155
 156
 157     /* Put menu into the menubar */
 158     menuItem = [[NSMenuItem alloc] initWithTitle:@"" action:nil keyEquivalent:@""];
 159     [menuItem setSubmenu:appleMenu];
 160     [[NSApp mainMenu] addItem:menuItem];
 161
 162     /* Tell the application object that this is now the application menu */
 163     [NSApp setAppleMenu:appleMenu];
 164
 165     /* Finally give up our references to the objects */
 166     [appleMenu release];
 167     [menuItem release];
 168 }
 169
 170 /* Create a window menu */
 171 static void setupWindowMenu(void)
 172 {
 173     NSMenu      *windowMenu;
 174     NSMenuItem  *windowMenuItem;
 175     NSMenuItem  *menuItem;
 176
 177     windowMenu = [[NSMenu alloc] initWithTitle:@"Window"];
 178
 179     /* "Minimize" item */
 180     menuItem = [[NSMenuItem alloc] initWithTitle:@"Minimize" action:@selector(performMiniaturize:) keyEquivalent:@"m"];
 181     [windowMenu addItem:menuItem];
 182     [menuItem release];
 183
 184     /* Put menu into the menubar */
 185     windowMenuItem = [[NSMenuItem alloc] initWithTitle:@"Window" action:nil keyEquivalent:@""];
 186     [windowMenuItem setSubmenu:windowMenu];
 187     [[NSApp mainMenu] addItem:windowMenuItem];
 188
 189     /* Tell the application object that this is now the window menu */
 190     [NSApp setWindowsMenu:windowMenu];
 191
 192     /* Finally give up our references to the objects */
 193     [windowMenu release];
 194     [windowMenuItem release];
 195 }
 196
 197 /* Replacement for NSApplicationMain */
 198 static void CustomApplicationMain (int argc, char **argv)
 199 {
 200     NSAutoreleasePool   *pool = [[NSAutoreleasePool alloc] init];
 201     SDLMain                             *sdlMain;
 202
 203     /* Ensure the application object is initialised */
 204     [NSApplication sharedApplication];
 205
 206 #ifdef SDL_USE_CPS
 207     {
 208         CPSProcessSerNum PSN;
 209         /* Tell the dock about us */
 210         if (!CPSGetCurrentProcess(&PSN))
 211             if (!CPSEnableForegroundOperation(&PSN,0x03,0x3C,0x2C,0x1103))
 212                 if (!CPSSetFrontProcess(&PSN))
 213                     [NSApplication sharedApplication];
 214     }
 215 #endif /* SDL_USE_CPS */
 216
 217     /* Set up the menubar */
 218     [NSApp setMainMenu:[[NSMenu alloc] init]];
 219     setApplicationMenu();
 220     setupWindowMenu();
 221
 222     /* Create SDLMain and make it the app delegate */
 223     sdlMain = [[SDLMain alloc] init];
 224     [NSApp setDelegate:sdlMain];
 225
 226     /* Start the main event loop */
 227     [NSApp run];
 228
 229     [sdlMain release];
 230     [pool release];
 231 }
 232
 233 #endif
 234
 235
 236 /*
 237  * Catch document open requests...this lets us notice files when the app
 238  *  was launched by double-clicking a document, or when a document was
 239  *  dragged/dropped on the app's icon. You need to have a
 240  *  CFBundleDocumentsType section in your Info.plist to get this message,
 241  *  apparently.
 242  *
 243  * Files are added to gArgv, so to the app, they'll look like command line
 244  *  arguments. Previously, apps launched from the finder had nothing but
 245  *  an argv[0].
 246  *
 247  * This message may be received multiple times to open several docs on launch.
 248  *
 249  * This message is ignored once the app's mainline has been called.
 250  */
 251 - (BOOL)application:(NSApplication *)theApplication openFile:(NSString *)filename
 252 {
 253     const char *temparg;
 254     size_t arglen;
 255     char *arg;
 256     char **newargv;
 257
 258     if (!gFinderLaunch)  /* MacOS is passing command line args. */
 259         return FALSE;
 260
 261     if (gCalledAppMainline)  /* app has started, ignore this document. */
 262         return FALSE;
 263
 264     temparg = [filename UTF8String];
 265     arglen = SDL_strlen(temparg) + 1;
 266     arg = (char *) SDL_malloc(arglen);
 267     if (arg == NULL)
 268         return FALSE;
 269
 270     newargv = (char **) realloc(gArgv, sizeof (char *) * (gArgc + 2));
 271     if (newargv == NULL)
 272     {
 273         SDL_free(arg);
 274         return FALSE;
 275     }
 276     gArgv = newargv;
 277
 278     SDL_strlcpy(arg, temparg, arglen);
 279     gArgv[gArgc++] = arg;
 280     gArgv[gArgc] = NULL;
 281     return TRUE;
 282 }
 283
 284
 285 /* Called when the internal event loop has just started running */
 286 - (void) applicationDidFinishLaunching: (NSNotification *) note
 287 {
 288     int status;
 289
 290     /* Set the working directory to the .app's parent directory */
 291     [self setupWorkingDirectory:gFinderLaunch];
 292
 293 #if SDL_USE_NIB_FILE
 294     /* Set the main menu to contain the real app name instead of "SDL App" */
 295     [self fixMenu:[NSApp mainMenu] withAppName:getApplicationName()];
 296 #endif
 297
 298     /* Hand off to main application code */
 299     gCalledAppMainline = TRUE;
 300     status = SDL_main (gArgc, gArgv);
 301
 302     /* We're done, thank you for playing */
 303     exit(status);
 304 }
 305 @end
 306
 307
 308 @implementation NSString (ReplaceSubString)
 309
 310 - (NSString *)stringByReplacingRange:(NSRange)aRange with:(NSString *)aString
 311 {
 312     unsigned int bufferSize;
 313     unsigned int selfLen = [self length];
 314     unsigned int aStringLen = [aString length];
 315     unichar *buffer;
 316     NSRange localRange;
 317     NSString *result;
 318
 319     bufferSize = selfLen + aStringLen - aRange.length;
 320     buffer = (unichar *)NSAllocateMemoryPages(bufferSize*sizeof(unichar));
 321
 322     /* Get first part into buffer */
 323     localRange.location = 0;
 324     localRange.length = aRange.location;
 325     [self getCharacters:buffer range:localRange];
 326
 327     /* Get middle part into buffer */
 328     localRange.location = 0;
 329     localRange.length = aStringLen;
 330     [aString getCharacters:(buffer+aRange.location) range:localRange];
 331
 332     /* Get last part into buffer */
 333     localRange.location = aRange.location + aRange.length;
 334     localRange.length = selfLen - localRange.location;
 335     [self getCharacters:(buffer+aRange.location+aStringLen) range:localRange];
 336
 337     /* Build output string */
 338     result = [NSString stringWithCharacters:buffer length:bufferSize];
 339
 340     NSDeallocateMemoryPages(buffer, bufferSize);
 341
 342     return result;
 343 }
 344
 345 @end
 346
 347
 348
 349 #ifdef main
 350 #  undef main
 351 #endif
 352
 353
 354 /* Main entry point to executable - should *not* be SDL_main! */
 355 int main (int argc, char **argv)
 356 {
 357     /* Copy the arguments into a global variable */
 358     /* This is passed if we are launched by double-clicking */
 359     if ( argc >= 2 && strncmp (argv[1], "-psn", 4) == 0 ) {
 360         gArgv = (char **) SDL_malloc(sizeof (char *) * 2);
 361         gArgv[0] = argv[0];
 362         gArgv[1] = NULL;
 363         gArgc = 1;
 364         gFinderLaunch = YES;
 365     } else {
 366         int i;
 367         gArgc = argc;
 368         gArgv = (char **) SDL_malloc(sizeof (char *) * (argc+1));
 369         for (i = 0; i <= argc; i++)
 370             gArgv[i] = argv[i];
 371         gFinderLaunch = NO;
 372     }
 373
 374 #if SDL_USE_NIB_FILE
 375     NSApplicationMain (argc, argv);
 376 #else
 377     CustomApplicationMain (argc, argv);
 378 #endif
 379     return 0;
 380 }
 381