/* 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

*/

#include "SDL.h"

#include "SDLMain.h"

#include <sys/param.h> /* for MAXPATHLEN */

#include <unistd.h>

/* For some reaon, 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];

[NSApp setDelegate:sdlMain];

/* 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

static int IsRootCwd()

{

char buf[MAXPATHLEN];

char *cwd = getcwd(buf, sizeof (buf));

return (cwd && (strcmp(cwd, "/") == 0));

}

static int IsFinderLaunch(const int argc, char **argv)

{

/* -psn_XXX is passed if we are launched from Finder, SOMETIMES */

if ( (argc >= 2) && (strncmp(argv[1], "-psn", 4) == 0) ) {

return 1;

} else if ((argc == 1) && IsRootCwd()) {

/* we might still be launched from the Finder; on 10.9+, you might not

get the -psn command line anymore. If there's no

command line, and if our current working directory is "/", it

might as well be a Finder launch. */

return 1;

}

return 0; /* not a Finder launch. */

}

/* Main entry point to executable - should *not* be SDL_main! */

int main (int argc, char **argv)

{

/* Copy the arguments into a global variable */

if (IsFinderLaunch(argc, argv)) {

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;

}