SDL_main.m
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/* SDL_main.m - main entry point for our Cocoa-ized SDL app
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Darrell Walisser - dwaliss1@purdue.edu
Feel free to customize this file to suit your needs
*/
#import "SDL.h"
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#import "SDL_main.h"
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#import <sys/param.h> /* for MAXPATHLEN */
#import <unistd.h>
static int gArgc;
static char **gArgv;
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static NSString *gAppName = 0;
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static BOOL gFinderLaunch;
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@interface NSString (ReplaceSubString)
- (NSString *)stringByReplacingRange:(NSRange)aRange with:(NSString *)aString;
@end
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/* The main class of the application, the application's delegate */
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@implementation SDL_main
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/* Invoked from the Quit menu item */
- (void) quit:(id)sender
{
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SDL_Event event;
event.type = SDL_QUIT;
SDL_PushEvent(&event);
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/* Invoked from the Make Full-Screen menu item */
- (void) makeFullscreen:(id)sender
{
/* TODO */
}
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/* Set the working directory to the .app's parent directory */
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- (void) setupWorkingDirectory:(BOOL)shouldChdir
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{
char parentdir[MAXPATHLEN];
char *c;
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strncpy ( parentdir, gArgv[0], sizeof(parentdir) );
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c = (char*) parentdir;
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while (*c != '\0') /* go to end */
c++;
while (*c != '/') /* back up to parent */
c--;
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*c++ = '\0'; /* cut off last part (binary name) */
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if (shouldChdir)
{
assert ( chdir (parentdir) == 0 ); /* chdir to the binary app's parent */
assert ( chdir ("../../../") == 0 ); /* chdir to the .app's parent */
}
/* gAppName = [ NSString stringWithCString: c ]; */
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}
/* 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 ];
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}
/* Called when the internal event loop has just started running */
- (void) applicationDidFinishLaunching: (NSNotification *) note
{
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int status;
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/* Set the working directory to the .app's parent directory */
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[ self setupWorkingDirectory: gFinderLaunch ];
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/* Set the main menu to contain the real app name instead of "SDL App" */
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gAppName = [ [ NSBundle mainBundle ] bundleIdentifier ];
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[ self fixMenu: [ NSApp mainMenu ] ];
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/* Hand off to main application code */
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status = SDL_main (gArgc, gArgv);
/* We're done, thank you for playing */
exit(status);
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}
@end
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@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
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#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;
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/* This is passed if we are launched by double-clicking */
if ( argc >= 2 && strncmp (argv[1], "-psn", 4) == 0 ) {
gArgc = 1;
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gFinderLaunch = YES;
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} else {
gArgc = argc;
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gFinderLaunch = NO;
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}
gArgv = (char**) malloc (sizeof(*gArgv) * (gArgc+1));
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assert (gArgv != NULL);
for (i = 0; i < gArgc; i++) {
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gArgv[i] = argv[i];
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gArgv[i] = NULL;
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NSApplicationMain (argc, argv);
return 0;