Xcode/TemplatesForXcodeTiger/SDL Application/SDLMain.m
branchSDL-1.2
changeset 5895 402eac854030
child 12048 eb70ab731d29
equal deleted inserted replaced
5894:414b2fa01526 5895:402eac854030
       
     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.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 SDLApplication : NSApplication
       
    68 @end
       
    69 
       
    70 @implementation 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     [ aMenu sizeToFit ];
       
   123 }
       
   124 
       
   125 #else
       
   126 
       
   127 static void setApplicationMenu(void)
       
   128 {
       
   129     /* warning: this code is very odd */
       
   130     NSMenu *appleMenu;
       
   131     NSMenuItem *menuItem;
       
   132     NSString *title;
       
   133     NSString *appName;
       
   134     
       
   135     appName = getApplicationName();
       
   136     appleMenu = [[NSMenu alloc] initWithTitle:@""];
       
   137     
       
   138     /* Add menu items */
       
   139     title = [@"About " stringByAppendingString:appName];
       
   140     [appleMenu addItemWithTitle:title action:@selector(orderFrontStandardAboutPanel:) keyEquivalent:@""];
       
   141 
       
   142     [appleMenu addItem:[NSMenuItem separatorItem]];
       
   143 
       
   144     title = [@"Hide " stringByAppendingString:appName];
       
   145     [appleMenu addItemWithTitle:title action:@selector(hide:) keyEquivalent:@"h"];
       
   146 
       
   147     menuItem = (NSMenuItem *)[appleMenu addItemWithTitle:@"Hide Others" action:@selector(hideOtherApplications:) keyEquivalent:@"h"];
       
   148     [menuItem setKeyEquivalentModifierMask:(NSAlternateKeyMask|NSCommandKeyMask)];
       
   149 
       
   150     [appleMenu addItemWithTitle:@"Show All" action:@selector(unhideAllApplications:) keyEquivalent:@""];
       
   151 
       
   152     [appleMenu addItem:[NSMenuItem separatorItem]];
       
   153 
       
   154     title = [@"Quit " stringByAppendingString:appName];
       
   155     [appleMenu addItemWithTitle:title action:@selector(terminate:) keyEquivalent:@"q"];
       
   156 
       
   157     
       
   158     /* Put menu into the menubar */
       
   159     menuItem = [[NSMenuItem alloc] initWithTitle:@"" action:nil keyEquivalent:@""];
       
   160     [menuItem setSubmenu:appleMenu];
       
   161     [[NSApp mainMenu] addItem:menuItem];
       
   162 
       
   163     /* Tell the application object that this is now the application menu */
       
   164     [NSApp setAppleMenu:appleMenu];
       
   165 
       
   166     /* Finally give up our references to the objects */
       
   167     [appleMenu release];
       
   168     [menuItem release];
       
   169 }
       
   170 
       
   171 /* Create a window menu */
       
   172 static void setupWindowMenu(void)
       
   173 {
       
   174     NSMenu      *windowMenu;
       
   175     NSMenuItem  *windowMenuItem;
       
   176     NSMenuItem  *menuItem;
       
   177 
       
   178     windowMenu = [[NSMenu alloc] initWithTitle:@"Window"];
       
   179     
       
   180     /* "Minimize" item */
       
   181     menuItem = [[NSMenuItem alloc] initWithTitle:@"Minimize" action:@selector(performMiniaturize:) keyEquivalent:@"m"];
       
   182     [windowMenu addItem:menuItem];
       
   183     [menuItem release];
       
   184     
       
   185     /* Put menu into the menubar */
       
   186     windowMenuItem = [[NSMenuItem alloc] initWithTitle:@"Window" action:nil keyEquivalent:@""];
       
   187     [windowMenuItem setSubmenu:windowMenu];
       
   188     [[NSApp mainMenu] addItem:windowMenuItem];
       
   189     
       
   190     /* Tell the application object that this is now the window menu */
       
   191     [NSApp setWindowsMenu:windowMenu];
       
   192 
       
   193     /* Finally give up our references to the objects */
       
   194     [windowMenu release];
       
   195     [windowMenuItem release];
       
   196 }
       
   197 
       
   198 /* Replacement for NSApplicationMain */
       
   199 static void CustomApplicationMain (int argc, char **argv)
       
   200 {
       
   201     NSAutoreleasePool	*pool = [[NSAutoreleasePool alloc] init];
       
   202     SDLMain				*sdlMain;
       
   203 
       
   204     /* Ensure the application object is initialised */
       
   205     [SDLApplication sharedApplication];
       
   206     
       
   207 #ifdef SDL_USE_CPS
       
   208     {
       
   209         CPSProcessSerNum PSN;
       
   210         /* Tell the dock about us */
       
   211         if (!CPSGetCurrentProcess(&PSN))
       
   212             if (!CPSEnableForegroundOperation(&PSN,0x03,0x3C,0x2C,0x1103))
       
   213                 if (!CPSSetFrontProcess(&PSN))
       
   214                     [SDLApplication sharedApplication];
       
   215     }
       
   216 #endif /* SDL_USE_CPS */
       
   217 
       
   218     /* Set up the menubar */
       
   219     [NSApp setMainMenu:[[NSMenu alloc] init]];
       
   220     setApplicationMenu();
       
   221     setupWindowMenu();
       
   222 
       
   223     /* Create SDLMain and make it the app delegate */
       
   224     sdlMain = [[SDLMain alloc] init];
       
   225     [NSApp setDelegate:sdlMain];
       
   226     
       
   227     /* Start the main event loop */
       
   228     [NSApp run];
       
   229     
       
   230     [sdlMain release];
       
   231     [pool release];
       
   232 }
       
   233 
       
   234 #endif
       
   235 
       
   236 
       
   237 /*
       
   238  * Catch document open requests...this lets us notice files when the app
       
   239  *  was launched by double-clicking a document, or when a document was
       
   240  *  dragged/dropped on the app's icon. You need to have a
       
   241  *  CFBundleDocumentsType section in your Info.plist to get this message,
       
   242  *  apparently.
       
   243  *
       
   244  * Files are added to gArgv, so to the app, they'll look like command line
       
   245  *  arguments. Previously, apps launched from the finder had nothing but
       
   246  *  an argv[0].
       
   247  *
       
   248  * This message may be received multiple times to open several docs on launch.
       
   249  *
       
   250  * This message is ignored once the app's mainline has been called.
       
   251  */
       
   252 - (BOOL)application:(NSApplication *)theApplication openFile:(NSString *)filename
       
   253 {
       
   254     const char *temparg;
       
   255     size_t arglen;
       
   256     char *arg;
       
   257     char **newargv;
       
   258 
       
   259     if (!gFinderLaunch)  /* MacOS is passing command line args. */
       
   260         return FALSE;
       
   261 
       
   262     if (gCalledAppMainline)  /* app has started, ignore this document. */
       
   263         return FALSE;
       
   264 
       
   265     temparg = [filename UTF8String];
       
   266     arglen = SDL_strlen(temparg) + 1;
       
   267     arg = (char *) SDL_malloc(arglen);
       
   268     if (arg == NULL)
       
   269         return FALSE;
       
   270 
       
   271     newargv = (char **) realloc(gArgv, sizeof (char *) * (gArgc + 2));
       
   272     if (newargv == NULL)
       
   273     {
       
   274         SDL_free(arg);
       
   275         return FALSE;
       
   276     }
       
   277     gArgv = newargv;
       
   278 
       
   279     SDL_strlcpy(arg, temparg, arglen);
       
   280     gArgv[gArgc++] = arg;
       
   281     gArgv[gArgc] = NULL;
       
   282     return TRUE;
       
   283 }
       
   284 
       
   285 
       
   286 /* Called when the internal event loop has just started running */
       
   287 - (void) applicationDidFinishLaunching: (NSNotification *) note
       
   288 {
       
   289     int status;
       
   290 
       
   291     /* Set the working directory to the .app's parent directory */
       
   292     [self setupWorkingDirectory:gFinderLaunch];
       
   293 
       
   294 #if SDL_USE_NIB_FILE
       
   295     /* Set the main menu to contain the real app name instead of "SDL App" */
       
   296     [self fixMenu:[NSApp mainMenu] withAppName:getApplicationName()];
       
   297 #endif
       
   298 
       
   299     /* Hand off to main application code */
       
   300     gCalledAppMainline = TRUE;
       
   301     status = SDL_main (gArgc, gArgv);
       
   302 
       
   303     /* We're done, thank you for playing */
       
   304     exit(status);
       
   305 }
       
   306 @end
       
   307 
       
   308 
       
   309 @implementation NSString (ReplaceSubString)
       
   310 
       
   311 - (NSString *)stringByReplacingRange:(NSRange)aRange with:(NSString *)aString
       
   312 {
       
   313     unsigned int bufferSize;
       
   314     unsigned int selfLen = [self length];
       
   315     unsigned int aStringLen = [aString length];
       
   316     unichar *buffer;
       
   317     NSRange localRange;
       
   318     NSString *result;
       
   319 
       
   320     bufferSize = selfLen + aStringLen - aRange.length;
       
   321     buffer = (unichar *)NSAllocateMemoryPages(bufferSize*sizeof(unichar));
       
   322     
       
   323     /* Get first part into buffer */
       
   324     localRange.location = 0;
       
   325     localRange.length = aRange.location;
       
   326     [self getCharacters:buffer range:localRange];
       
   327     
       
   328     /* Get middle part into buffer */
       
   329     localRange.location = 0;
       
   330     localRange.length = aStringLen;
       
   331     [aString getCharacters:(buffer+aRange.location) range:localRange];
       
   332      
       
   333     /* Get last part into buffer */
       
   334     localRange.location = aRange.location + aRange.length;
       
   335     localRange.length = selfLen - localRange.location;
       
   336     [self getCharacters:(buffer+aRange.location+aStringLen) range:localRange];
       
   337     
       
   338     /* Build output string */
       
   339     result = [NSString stringWithCharacters:buffer length:bufferSize];
       
   340     
       
   341     NSDeallocateMemoryPages(buffer, bufferSize);
       
   342     
       
   343     return result;
       
   344 }
       
   345 
       
   346 @end
       
   347 
       
   348 
       
   349 
       
   350 #ifdef main
       
   351 #  undef main
       
   352 #endif
       
   353 
       
   354 
       
   355 /* Main entry point to executable - should *not* be SDL_main! */
       
   356 int main (int argc, char **argv)
       
   357 {
       
   358     /* Copy the arguments into a global variable */
       
   359     /* This is passed if we are launched by double-clicking */
       
   360     if ( argc >= 2 && strncmp (argv[1], "-psn", 4) == 0 ) {
       
   361         gArgv = (char **) SDL_malloc(sizeof (char *) * 2);
       
   362         gArgv[0] = argv[0];
       
   363         gArgv[1] = NULL;
       
   364         gArgc = 1;
       
   365         gFinderLaunch = YES;
       
   366     } else {
       
   367         int i;
       
   368         gArgc = argc;
       
   369         gArgv = (char **) SDL_malloc(sizeof (char *) * (argc+1));
       
   370         for (i = 0; i <= argc; i++)
       
   371             gArgv[i] = argv[i];
       
   372         gFinderLaunch = NO;
       
   373     }
       
   374 
       
   375 #if SDL_USE_NIB_FILE
       
   376     [SDLApplication poseAsClass:[NSApplication class]];
       
   377     NSApplicationMain (argc, argv);
       
   378 #else
       
   379     CustomApplicationMain (argc, argv);
       
   380 #endif
       
   381     return 0;
       
   382 }
       
   383