/* SDLMain.m - main entry point for our Cocoa-ized SDL app Initial Version: Darrell Walisser Non-NIB-Code & other changes: Max Horn Feel free to customize this file to suit your needs */ #if defined(__clang__) #pragma clang diagnostic push #pragma clang diagnostic ignored "-Wdeprecated-declarations" #endif #include "SDL.h" #include "SDLMain.h" #include /* for MAXPATHLEN */ #include #include /* For some reason, Apple removed setAppleMenu from the headers in 10.4, but the method still is there and works. To avoid warnings, we declare it ourselves here. */ @interface NSApplication(SDL_Missing_Methods) - (void)setAppleMenu:(NSMenu *)menu; @end /* Use this flag to determine whether we use SDLMain.nib or not */ #define SDL_USE_NIB_FILE 0 /* Use this flag to determine whether we use CPS (docking) or not */ #define SDL_USE_CPS 1 #ifdef SDL_USE_CPS /* Portions of CPS.h */ typedef struct CPSProcessSerNum { UInt32 lo; UInt32 hi; } CPSProcessSerNum; extern OSErr CPSGetCurrentProcess( CPSProcessSerNum *psn); extern OSErr CPSEnableForegroundOperation( CPSProcessSerNum *psn, UInt32 _arg2, UInt32 _arg3, UInt32 _arg4, UInt32 _arg5); extern OSErr CPSSetFrontProcess( CPSProcessSerNum *psn); #endif /* SDL_USE_CPS */ static int gArgc; static char **gArgv; static BOOL gFinderLaunch; static BOOL gCalledAppMainline = FALSE; static NSString *getApplicationName(void) { const NSDictionary *dict; NSString *appName = 0; /* Determine the application name */ dict = (const NSDictionary *)CFBundleGetInfoDictionary(CFBundleGetMainBundle()); if (dict) appName = [dict objectForKey: @"CFBundleName"]; if (![appName length]) appName = [[NSProcessInfo processInfo] processName]; return appName; } #if SDL_USE_NIB_FILE /* A helper category for NSString */ @interface NSString (ReplaceSubString) - (NSString *)stringByReplacingRange:(NSRange)aRange with:(NSString *)aString; @end #endif @interface NSApplication (SDLApplication) @end @implementation NSApplication (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 { if (shouldChdir) { char parentdir[MAXPATHLEN]; CFURLRef url = CFBundleCopyBundleURL(CFBundleGetMainBundle()); CFURLRef url2 = CFURLCreateCopyDeletingLastPathComponent(0, url); if (CFURLGetFileSystemRepresentation(url2, 1, (UInt8 *)parentdir, MAXPATHLEN)) { chdir(parentdir); /* chdir to the binary app's parent */ } CFRelease(url); CFRelease(url2); } } #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]; } } #else static void setApplicationMenu(void) { /* warning: this code is very odd */ NSMenu *appleMenu; NSMenuItem *menuItem; NSString *title; NSString *appName; appName = getApplicationName(); appleMenu = [[NSMenu alloc] initWithTitle:@""]; /* Add menu items */ title = [@"About " stringByAppendingString:appName]; [appleMenu addItemWithTitle:title action:@selector(orderFrontStandardAboutPanel:) keyEquivalent:@""]; [appleMenu addItem:[NSMenuItem separatorItem]]; title = [@"Hide " stringByAppendingString:appName]; [appleMenu addItemWithTitle:title action:@selector(hide:) keyEquivalent:@"h"]; menuItem = (NSMenuItem *)[appleMenu addItemWithTitle:@"Hide Others" action:@selector(hideOtherApplications:) keyEquivalent:@"h"]; [menuItem setKeyEquivalentModifierMask:(NSAlternateKeyMask|NSCommandKeyMask)]; [appleMenu addItemWithTitle:@"Show All" action:@selector(unhideAllApplications:) keyEquivalent:@""]; [appleMenu addItem:[NSMenuItem separatorItem]]; title = [@"Quit " stringByAppendingString:appName]; [appleMenu addItemWithTitle:title action:@selector(terminate:) keyEquivalent:@"q"]; /* Put menu into the menubar */ menuItem = [[NSMenuItem alloc] initWithTitle:@"" action:nil keyEquivalent:@""]; [menuItem setSubmenu:appleMenu]; [[NSApp mainMenu] addItem:menuItem]; /* Tell the application object that this is now the application menu */ [NSApp setAppleMenu:appleMenu]; /* Finally give up our references to the objects */ [appleMenu release]; [menuItem release]; } /* Create a window menu */ static 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]; } /* Replacement for NSApplicationMain */ static void CustomApplicationMain (int argc, char **argv) { NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; SDLMain *sdlMain; /* Ensure the application object is initialised */ [NSApplication sharedApplication]; #ifdef SDL_USE_CPS { CPSProcessSerNum PSN; /* Tell the dock about us */ if (!CPSGetCurrentProcess(&PSN)) if (!CPSEnableForegroundOperation(&PSN,0x03,0x3C,0x2C,0x1103)) if (!CPSSetFrontProcess(&PSN)) [NSApplication sharedApplication]; } #endif /* SDL_USE_CPS */ /* Set up the menubar */ [NSApp setMainMenu:[[NSMenu alloc] init]]; setApplicationMenu(); setupWindowMenu(); /* Create SDLMain and make it the app delegate */ sdlMain = [[SDLMain alloc] init]; #if defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && __MAC_OS_X_VERSION_MIN_REQUIRED < 1060 /* before 10.6 */ [NSApp setDelegate:sdlMain]; #else /* 10.6 introduced NSApplicationDelegate, according to https://developer.apple.com/documentation/appkit/nsapplicationdelegate?language=objc */ [NSApp setDelegate:(id)sdlMain]; #endif /* Start the main event loop */ [NSApp run]; [sdlMain release]; [pool release]; } #endif /* * Catch document open requests...this lets us notice files when the app * was launched by double-clicking a document, or when a document was * dragged/dropped on the app's icon. You need to have a * CFBundleDocumentsType section in your Info.plist to get this message, * apparently. * * Files are added to gArgv, so to the app, they'll look like command line * arguments. Previously, apps launched from the finder had nothing but * an argv[0]. * * This message may be received multiple times to open several docs on launch. * * This message is ignored once the app's mainline has been called. */ - (BOOL)application:(NSApplication *)theApplication openFile:(NSString *)filename { const char *temparg; size_t arglen; char *arg; char **newargv; if (!gFinderLaunch) /* MacOS is passing command line args. */ return FALSE; if (gCalledAppMainline) /* app has started, ignore this document. */ return FALSE; temparg = [filename UTF8String]; arglen = SDL_strlen(temparg) + 1; arg = (char *) SDL_malloc(arglen); if (arg == NULL) return FALSE; newargv = (char **) realloc(gArgv, sizeof (char *) * (gArgc + 2)); if (newargv == NULL) { SDL_free(arg); return FALSE; } gArgv = newargv; SDL_strlcpy(arg, temparg, arglen); gArgv[gArgc++] = arg; gArgv[gArgc] = NULL; return TRUE; } /* 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:getApplicationName()]; #endif /* Hand off to main application code */ gCalledAppMainline = TRUE; 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 = (unichar *)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 */ /* This is passed if we are launched by double-clicking */ if ( argc >= 2 && strncmp (argv[1], "-psn", 4) == 0 ) { gArgv = (char **) SDL_malloc(sizeof (char *) * 2); gArgv[0] = argv[0]; gArgv[1] = NULL; gArgc = 1; gFinderLaunch = YES; } else { int i; gArgc = argc; gArgv = (char **) SDL_malloc(sizeof (char *) * (argc+1)); for (i = 0; i <= argc; i++) gArgv[i] = argv[i]; gFinderLaunch = NO; } #if SDL_USE_NIB_FILE NSApplicationMain (argc, argv); #else CustomApplicationMain (argc, argv); #endif return 0; } #if defined(__clang__) #pragma clang diagnostic pop #endif