/* SDLMain.m - main entry point for our Cocoa-ized SDL app

Darrell Walisser - dwaliss1@purdue.edu

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>

static int gArgc;

static char **gArgv;

static NSString *gAppName = 0;

@interface NSString (ReplaceSubString)

- (NSString *)stringByReplacingRange:(NSRange)aRange with:(NSString *)aString;

@end

/* The main class of the application, the application's delegate */

@implementation SDLMain

/* Invoked from the Quit menu item */

- (void) quit:(id)sender

{

SDL_Event event;

event.type = SDL_QUIT;

SDL_PushEvent(&event);

}

/* Set the working directory to the .app's parent directory */

- (void) setupWorkingDirectory

{

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) */

assert ( chdir (parentdir) == 0 ); /* chdir to the binary app's parent */

assert ( chdir ("../../../") == 0 ); /* chdir to the .app's parent */

gAppName = [ NSString stringWithCString: c ];

}

/* Fix menu to contain the real app name instead of "SDL App" */

- (void) fixMenu:(NSMenu *)aMenu

{

NSRange aRange;

NSEnumerator *enumerator;

NSMenuItem *menuItem;

aRange = [[aMenu title] rangeOfString:@"SDL App"];

if (aRange.length != 0)

[aMenu setTitle: [[aMenu title] stringByReplacingRange:aRange with:gAppName]];

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:gAppName]];

if ([menuItem hasSubmenu])

[self fixMenu: [menuItem submenu]];

}

[ aMenu sizeToFit ];

}

/* 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 ];

/* Set the main menu to contain the real app name instead of "SDL App" */

[ self fixMenu: [ NSApp mainMenu ] ];

/* Hand off to main application code */

status = SDL_main (gArgc, gArgv);

/* 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 executible - 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;

} else {

gArgc = argc;

}

gArgv = (char**) malloc (sizeof(*gArgv) * (gArgc+1));

assert (gArgv != NULL);

for (i = 0; i < gArgc; i++) {

gArgv[i] = argv[i];

}

gArgv[i] = NULL;

NSApplicationMain (argc, argv);

return 0;

}