Move SDLMain.m too (whoops).

src/xpdev/SDLMain.m

+/*   SDLMain.m - main entry point for our Cocoa-ized SDL app
+       Initial Version: Darrell Walisser <dwaliss1@purdue.edu>
+       Non-NIB-Code & other changes: Max Horn <max@quendi.de>
+
+    Feel free to customize this file to suit your needs
+*/
+
+#import "SDL.h"
+#import "SDLMain.h"
+#import <sys/param.h> /* for MAXPATHLEN */
+#import <unistd.h>
+
+/* Use this flag to determine whether we use SDLMain.nib or not */
+#define		SDL_USE_NIB_FILE	0
+
+
+static int    gArgc;
+static char  **gArgv;
+static BOOL   gFinderLaunch;
+
+#if SDL_USE_NIB_FILE
+/* A helper category for NSString */
+@interface NSString (ReplaceSubString)
+- (NSString *)stringByReplacingRange:(NSRange)aRange with:(NSString *)aString;
+@end
+#else
+/* An internal Apple class used to setup Apple menus */
+@interface NSAppleMenuController:NSObject {}
+- (void)controlMenu:(NSMenu *)aMenu;
+@end
+#endif
+
+@interface SDLApplication : NSApplication
+@end
+
+@implementation SDLApplication
+/* Invoked from the Quit menu item */
+- (void)terminate:(id)sender
+{
+    /* Post a SDL_QUIT event */
+    SDL_Event event;
+    event.type = SDL_QUIT;
+    SDL_PushEvent(&event);
+}
+@end
+
+
+/* The main class of the application, the application's delegate */
+@implementation SDLMain
+
+/* Set the working directory to the .app's parent directory */
+- (void) setupWorkingDirectory:(BOOL)shouldChdir
+{
+    char parentdir[MAXPATHLEN];
+    char *c;
+    
+    strncpy ( parentdir, gArgv[0], sizeof(parentdir) );
+    c = (char*) parentdir;
+
+    while (*c != '\0')     /* go to end */
+        c++;
+    
+    while (*c != '/')      /* back up to parent */
+        c--;
+    
+    *c++ = '\0';             /* cut off last part (binary name) */
+  
+    if (shouldChdir)
+    {
+      assert ( chdir (parentdir) == 0 );   /* chdir to the binary app's parent */
+      assert ( chdir ("../../../") == 0 ); /* chdir to the .app's parent */
+    }
+}
+
+#if SDL_USE_NIB_FILE
+
+/* Fix menu to contain the real app name instead of "SDL App" */
+- (void)fixMenu:(NSMenu *)aMenu withAppName:(NSString *)appName
+{
+    NSRange aRange;
+    NSEnumerator *enumerator;
+    NSMenuItem *menuItem;
+
+    aRange = [[aMenu title] rangeOfString:@"SDL App"];
+    if (aRange.length != 0)
+        [aMenu setTitle: [[aMenu title] stringByReplacingRange:aRange with:appName]];
+
+    enumerator = [[aMenu itemArray] objectEnumerator];
+    while ((menuItem = [enumerator nextObject]))
+    {
+        aRange = [[menuItem title] rangeOfString:@"SDL App"];
+        if (aRange.length != 0)
+            [menuItem setTitle: [[menuItem title] stringByReplacingRange:aRange with:appName]];
+        if ([menuItem hasSubmenu])
+            [self fixMenu:[menuItem submenu] withAppName:appName];
+    }
+    [ aMenu sizeToFit ];
+}
+
+#else
+
+void setupAppleMenu(void)
+{
+    /* warning: this code is very odd */
+    NSAppleMenuController *appleMenuController;
+    NSMenu *appleMenu;
+    NSMenuItem *appleMenuItem;
+
+    appleMenuController = [[NSAppleMenuController alloc] init];
+    appleMenu = [[NSMenu alloc] initWithTitle:@""];
+    appleMenuItem = [[NSMenuItem alloc] initWithTitle:@"" action:nil keyEquivalent:@""];
+    
+    [appleMenuItem setSubmenu:appleMenu];
+
+    /* yes, we do need to add it and then remove it --
+       if you don't add it, it doesn't get displayed
+       if you don't remove it, you have an extra, titleless item in the menubar
+       when you remove it, it appears to stick around
+       very, very odd */
+    [[NSApp mainMenu] addItem:appleMenuItem];
+    [appleMenuController controlMenu:appleMenu];
+    [[NSApp mainMenu] removeItem:appleMenuItem];
+    [appleMenu release];
+    [appleMenuItem release];
+}
+
+/* Create a window menu */
+void setupWindowMenu(void)
+{
+    NSMenu		*windowMenu;
+    NSMenuItem	*windowMenuItem;
+    NSMenuItem	*menuItem;
+
+
+    windowMenu = [[NSMenu alloc] initWithTitle:@"Window"];
+    
+    /* "Minimize" item */
+    menuItem = [[NSMenuItem alloc] initWithTitle:@"Minimize" action:@selector(performMiniaturize:) keyEquivalent:@"m"];
+    [windowMenu addItem:menuItem];
+    [menuItem release];
+    
+    /* Put menu into the menubar */
+    windowMenuItem = [[NSMenuItem alloc] initWithTitle:@"Window" action:nil keyEquivalent:@""];
+    [windowMenuItem setSubmenu:windowMenu];
+    [[NSApp mainMenu] addItem:windowMenuItem];
+    
+    /* Tell the application object that this is now the window menu */
+    [NSApp setWindowsMenu:windowMenu];
+
+    /* Finally give up our references to the objects */
+    [windowMenu release];
+    [windowMenuItem release];
+}
+
+extern char **environ;
+
+/* Replacement for NSApplicationMain */
+void CustomApplicationMain (argc, argv)
+{
+    NSAutoreleasePool	*pool = [[NSAutoreleasePool alloc] init];
+    SDLMain				*sdlMain;
+
+    /* Ensure the application object is initialised */
+    [SDLApplication sharedApplication];
+    
+    /* Set up the menubar */
+    [NSApp setMainMenu:[[NSMenu alloc] init]];
+    setupAppleMenu();
+    setupWindowMenu();
+    
+    /* Create SDLMain and make it the app delegate */
+    sdlMain = [[SDLMain alloc] init];
+    [NSApp setDelegate:sdlMain];
+    
+    /* Start the main event loop */
+    [NSApp run];
+    
+    [sdlMain release];
+    [pool release];
+}
+
+#endif
+
+/* Called when the internal event loop has just started running */
+- (void) applicationDidFinishLaunching: (NSNotification *) note
+{
+    int status;
+
+    /* Set the working directory to the .app's parent directory */
+    [self setupWorkingDirectory:gFinderLaunch];
+
+#if SDL_USE_NIB_FILE
+    /* Set the main menu to contain the real app name instead of "SDL App" */
+    [self fixMenu:[NSApp mainMenu] withAppName:[[NSProcessInfo processInfo] processName]];
+#endif
+
+    /* Hand off to main application code */
+    status = SDL_main_env (gArgc, gArgv, environ);
+
+    /* We're done, thank you for playing */
+    exit(status);
+}
+@end
+
+
+@implementation NSString (ReplaceSubString)
+
+- (NSString *)stringByReplacingRange:(NSRange)aRange with:(NSString *)aString
+{
+    unsigned int bufferSize;
+    unsigned int selfLen = [self length];
+    unsigned int aStringLen = [aString length];
+    unichar *buffer;
+    NSRange localRange;
+    NSString *result;
+
+    bufferSize = selfLen + aStringLen - aRange.length;
+    buffer = NSAllocateMemoryPages(bufferSize*sizeof(unichar));
+    
+    /* Get first part into buffer */
+    localRange.location = 0;
+    localRange.length = aRange.location;
+    [self getCharacters:buffer range:localRange];
+    
+    /* Get middle part into buffer */
+    localRange.location = 0;
+    localRange.length = aStringLen;
+    [aString getCharacters:(buffer+aRange.location) range:localRange];
+     
+    /* Get last part into buffer */
+    localRange.location = aRange.location + aRange.length;
+    localRange.length = selfLen - localRange.location;
+    [self getCharacters:(buffer+aRange.location+aStringLen) range:localRange];
+    
+    /* Build output string */
+    result = [NSString stringWithCharacters:buffer length:bufferSize];
+    
+    NSDeallocateMemoryPages(buffer, bufferSize);
+    
+    return result;
+}
+
+@end
+
+
+
+#ifdef main
+#  undef main
+#endif
+
+
+/* Main entry point to executable - should *not* be SDL_main! */
+int main (int argc, char **argv)
+{
+
+    /* Copy the arguments into a global variable */
+    int i;
+    
+    /* This is passed if we are launched by double-clicking */
+    if ( argc >= 2 && strncmp (argv[1], "-psn", 4) == 0 ) {
+        gArgc = 1;
+	gFinderLaunch = YES;
+    } else {
+        gArgc = argc;
+	gFinderLaunch = NO;
+    }
+    gArgv = (char**) malloc (sizeof(*gArgv) * (gArgc+1));
+    assert (gArgv != NULL);
+    for (i = 0; i < gArgc; i++)
+        gArgv[i] = argv[i];
+    gArgv[i] = NULL;
+
+#if SDL_USE_NIB_FILE
+    [SDLApplication poseAsClass:[NSApplication class]];
+    NSApplicationMain (argc, argv);
+#else
+    CustomApplicationMain (argc, argv);
+#endif
+    return 0;
+}