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comparison Xcode/TemplatesForProjectBuilder/SDL Cocoa Application/SDLMain.m @ 2207:d63e9f5944ae

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author Sam Lantinga <slouken@libsdl.org>
date Sat, 21 Jul 2007 17:09:01 +0000
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2206:ca7d2227d630 2207:d63e9f5944ae
1 /* SDLMain.m - main entry point for our Cocoa-ized SDL app
2 Initial Version: Darrell Walisser <dwaliss1@purdue.edu>
3 Non-NIB-Code & other changes: Max Horn <max@quendi.de>
4
5 Feel free to customize this file to suit your needs
6 */
7
8 #import "SDL.h"
9 #import "SDLMain.h"
10 #import <sys/param.h> /* for MAXPATHLEN */
11 #import <unistd.h>
12
13 /* For some reaon, Apple removed setAppleMenu from the headers in 10.4,
14 but the method still is there and works. To avoid warnings, we declare
15 it ourselves here. */
16 @interface NSApplication(SDL_Missing_Methods)
17 - (void)setAppleMenu:(NSMenu *)menu;
18 @end
19
20 /* Use this flag to determine whether we use SDLMain.nib or not */
21 #define SDL_USE_NIB_FILE 1
22
23 /* Use this flag to determine whether we use CPS (docking) or not */
24 #define SDL_USE_CPS 1
25 #ifdef SDL_USE_CPS
26 /* Portions of CPS.h */
27 typedef struct CPSProcessSerNum
28 {
29 UInt32 lo;
30 UInt32 hi;
31 } CPSProcessSerNum;
32
33 extern OSErr CPSGetCurrentProcess( CPSProcessSerNum *psn);
34 extern OSErr CPSEnableForegroundOperation( CPSProcessSerNum *psn, UInt32 _arg2, UInt32 _arg3, UInt32 _arg4, UInt32 _arg5);
35 extern OSErr CPSSetFrontProcess( CPSProcessSerNum *psn);
36
37 #endif /* SDL_USE_CPS */
38
39 static int gArgc;
40 static char **gArgv;
41 static BOOL gFinderLaunch;
42 static BOOL gCalledAppMainline = FALSE;
43
44 static NSString *getApplicationName(void)
45 {
46 NSDictionary *dict;
47 NSString *appName = 0;
48
49 /* Determine the application name */
50 dict = (NSDictionary *)CFBundleGetInfoDictionary(CFBundleGetMainBundle());
51 if (dict)
52 appName = [dict objectForKey: @"CFBundleName"];
53
54 if (![appName length])
55 appName = [[NSProcessInfo processInfo] processName];
56
57 return appName;
58 }
59
60 #if SDL_USE_NIB_FILE
61 /* A helper category for NSString */
62 @interface NSString (ReplaceSubString)
63 - (NSString *)stringByReplacingRange:(NSRange)aRange with:(NSString *)aString;
64 @end
65 #endif
66
67 @interface SDLApplication : NSApplication
68 @end
69
70 @implementation SDLApplication
71 /* Invoked from the Quit menu item */
72 - (void)terminate:(id)sender
73 {
74 /* Post a SDL_QUIT event */
75 SDL_Event event;
76 event.type = SDL_QUIT;
77 SDL_PushEvent(&event);
78 }
79 @end
80
81 /* The main class of the application, the application's delegate */
82 @implementation SDLMain
83
84 - (IBAction)prefsMenu:(id)sender
85 {
86 printf ("prefs menu\n");
87 }
88
89 - (IBAction)newGame:(id)sender
90 {
91 printf ("new game\n");
92
93 NSRunAlertPanel (@"Get ready to blow up some... stuff!",
94 @"Click OK to begin total carnage. Click Cancel to prevent total carnage.", @"OK", @"Cancel", nil);
95 }
96
97 - (IBAction)openGame:(id)sender
98 {
99 NSString *path = nil;
100 NSOpenPanel *openPanel = [ NSOpenPanel openPanel ];
101
102 if ( [ openPanel runModalForDirectory:nil
103 file:@"SavedGame" types:nil ] ) {
104
105 path = [ [ openPanel filenames ] objectAtIndex:0 ];
106 }
107
108 printf ("open game: %s\n", [ path cString ]);
109 }
110
111 - (IBAction)saveGame:(id)sender
112 {
113 NSString *path = nil;
114 NSSavePanel *savePanel = [ NSSavePanel savePanel ];
115
116 if ( [ savePanel runModalForDirectory:nil
117 file:@"SaveGameFile" ] ) {
118
119 path = [ savePanel filename ];
120 }
121
122 printf ("save game: %s\n", [ path cString ]);
123 }
124
125 - (IBAction)saveGameAs:(id)sender
126 {
127 printf ("save game as\n");
128 }
129
130 - (IBAction)help:(id)sender
131 {
132 NSRunAlertPanel (@"Oh help, where have ye gone?",
133 @"Sorry, there is no help available.\n\nThis message brought to you by We Don't Document, Inc.\n\n", @"Rats", @"Good, I never read it anyway", nil);
134 }
135
136
137 /* Set the working directory to the .app's parent directory */
138 - (void) setupWorkingDirectory:(BOOL)shouldChdir
139 {
140 if (shouldChdir)
141 {
142 char parentdir[MAXPATHLEN];
143 CFURLRef url = CFBundleCopyBundleURL(CFBundleGetMainBundle());
144 CFURLRef url2 = CFURLCreateCopyDeletingLastPathComponent(0, url);
145 if (CFURLGetFileSystemRepresentation(url2, true, (UInt8 *)parentdir, MAXPATHLEN)) {
146 assert ( chdir (parentdir) == 0 ); /* chdir to the binary app's parent */
147 }
148 CFRelease(url);
149 CFRelease(url2);
150 }
151
152 }
153
154 #if SDL_USE_NIB_FILE
155
156 /* Fix menu to contain the real app name instead of "SDL App" */
157 - (void)fixMenu:(NSMenu *)aMenu withAppName:(NSString *)appName
158 {
159 NSRange aRange;
160 NSEnumerator *enumerator;
161 NSMenuItem *menuItem;
162
163 aRange = [[aMenu title] rangeOfString:@"SDL App"];
164 if (aRange.length != 0)
165 [aMenu setTitle: [[aMenu title] stringByReplacingRange:aRange with:appName]];
166
167 enumerator = [[aMenu itemArray] objectEnumerator];
168 while ((menuItem = [enumerator nextObject]))
169 {
170 aRange = [[menuItem title] rangeOfString:@"SDL App"];
171 if (aRange.length != 0)
172 [menuItem setTitle: [[menuItem title] stringByReplacingRange:aRange with:appName]];
173 if ([menuItem hasSubmenu])
174 [self fixMenu:[menuItem submenu] withAppName:appName];
175 }
176 [ aMenu sizeToFit ];
177 }
178
179 #else
180
181 static void setApplicationMenu(void)
182 {
183 /* warning: this code is very odd */
184 NSMenu *appleMenu;
185 NSMenuItem *menuItem;
186 NSString *title;
187 NSString *appName;
188
189 appName = getApplicationName();
190 appleMenu = [[NSMenu alloc] initWithTitle:@""];
191
192 /* Add menu items */
193 title = [@"About " stringByAppendingString:appName];
194 [appleMenu addItemWithTitle:title action:@selector(orderFrontStandardAboutPanel:) keyEquivalent:@""];
195
196 [appleMenu addItem:[NSMenuItem separatorItem]];
197
198 title = [@"Hide " stringByAppendingString:appName];
199 [appleMenu addItemWithTitle:title action:@selector(hide:) keyEquivalent:@"h"];
200
201 menuItem = (NSMenuItem *)[appleMenu addItemWithTitle:@"Hide Others" action:@selector(hideOtherApplications:) keyEquivalent:@"h"];
202 [menuItem setKeyEquivalentModifierMask:(NSAlternateKeyMask|NSCommandKeyMask)];
203
204 [appleMenu addItemWithTitle:@"Show All" action:@selector(unhideAllApplications:) keyEquivalent:@""];
205
206 [appleMenu addItem:[NSMenuItem separatorItem]];
207
208 title = [@"Quit " stringByAppendingString:appName];
209 [appleMenu addItemWithTitle:title action:@selector(terminate:) keyEquivalent:@"q"];
210
211
212 /* Put menu into the menubar */
213 menuItem = [[NSMenuItem alloc] initWithTitle:@"" action:nil keyEquivalent:@""];
214 [menuItem setSubmenu:appleMenu];
215 [[NSApp mainMenu] addItem:menuItem];
216
217 /* Tell the application object that this is now the application menu */
218 [NSApp setAppleMenu:appleMenu];
219
220 /* Finally give up our references to the objects */
221 [appleMenu release];
222 [menuItem release];
223 }
224
225 /* Create a window menu */
226 static void setupWindowMenu(void)
227 {
228 NSMenu *windowMenu;
229 NSMenuItem *windowMenuItem;
230 NSMenuItem *menuItem;
231
232 windowMenu = [[NSMenu alloc] initWithTitle:@"Window"];
233
234 /* "Minimize" item */
235 menuItem = [[NSMenuItem alloc] initWithTitle:@"Minimize" action:@selector(performMiniaturize:) keyEquivalent:@"m"];
236 [windowMenu addItem:menuItem];
237 [menuItem release];
238
239 /* Put menu into the menubar */
240 windowMenuItem = [[NSMenuItem alloc] initWithTitle:@"Window" action:nil keyEquivalent:@""];
241 [windowMenuItem setSubmenu:windowMenu];
242 [[NSApp mainMenu] addItem:windowMenuItem];
243
244 /* Tell the application object that this is now the window menu */
245 [NSApp setWindowsMenu:windowMenu];
246
247 /* Finally give up our references to the objects */
248 [windowMenu release];
249 [windowMenuItem release];
250 }
251
252 /* Replacement for NSApplicationMain */
253 static void CustomApplicationMain (int argc, char **argv)
254 {
255 NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
256 SDLMain *sdlMain;
257
258 /* Ensure the application object is initialised */
259 [SDLApplication sharedApplication];
260
261 #ifdef SDL_USE_CPS
262 {
263 CPSProcessSerNum PSN;
264 /* Tell the dock about us */
265 if (!CPSGetCurrentProcess(&PSN))
266 if (!CPSEnableForegroundOperation(&PSN,0x03,0x3C,0x2C,0x1103))
267 if (!CPSSetFrontProcess(&PSN))
268 [SDLApplication sharedApplication];
269 }
270 #endif /* SDL_USE_CPS */
271
272 /* Set up the menubar */
273 [NSApp setMainMenu:[[NSMenu alloc] init]];
274 setApplicationMenu();
275 setupWindowMenu();
276
277 /* Create SDLMain and make it the app delegate */
278 sdlMain = [[SDLMain alloc] init];
279 [NSApp setDelegate:sdlMain];
280
281 /* Start the main event loop */
282 [NSApp run];
283
284 [sdlMain release];
285 [pool release];
286 }
287
288 #endif
289
290
291 /*
292 * Catch document open requests...this lets us notice files when the app
293 * was launched by double-clicking a document, or when a document was
294 * dragged/dropped on the app's icon. You need to have a
295 * CFBundleDocumentsType section in your Info.plist to get this message,
296 * apparently.
297 *
298 * Files are added to gArgv, so to the app, they'll look like command line
299 * arguments. Previously, apps launched from the finder had nothing but
300 * an argv[0].
301 *
302 * This message may be received multiple times to open several docs on launch.
303 *
304 * This message is ignored once the app's mainline has been called.
305 */
306 - (BOOL)application:(NSApplication *)theApplication openFile:(NSString *)filename
307 {
308 const char *temparg;
309 size_t arglen;
310 char *arg;
311 char **newargv;
312
313 if (!gFinderLaunch) /* MacOS is passing command line args. */
314 return FALSE;
315
316 if (gCalledAppMainline) /* app has started, ignore this document. */
317 return FALSE;
318
319 temparg = [filename UTF8String];
320 arglen = SDL_strlen(temparg) + 1;
321 arg = (char *) SDL_malloc(arglen);
322 if (arg == NULL)
323 return FALSE;
324
325 newargv = (char **) realloc(gArgv, sizeof (char *) * (gArgc + 2));
326 if (newargv == NULL)
327 {
328 SDL_free(arg);
329 return FALSE;
330 }
331 gArgv = newargv;
332
333 SDL_strlcpy(arg, temparg, arglen);
334 gArgv[gArgc++] = arg;
335 gArgv[gArgc] = NULL;
336 return TRUE;
337 }
338
339
340 /* Called when the internal event loop has just started running */
341 - (void) applicationDidFinishLaunching: (NSNotification *) note
342 {
343 int status;
344
345 /* Set the working directory to the .app's parent directory */
346 [self setupWorkingDirectory:gFinderLaunch];
347
348 #if SDL_USE_NIB_FILE
349 /* Set the main menu to contain the real app name instead of "SDL App" */
350 [self fixMenu:[NSApp mainMenu] withAppName:getApplicationName()];
351 #endif
352
353 /* Hand off to main application code */
354 gCalledAppMainline = TRUE;
355 status = SDL_main (gArgc, gArgv);
356
357 /* We're done, thank you for playing */
358 exit(status);
359 }
360 @end
361
362
363 @implementation NSString (ReplaceSubString)
364
365 - (NSString *)stringByReplacingRange:(NSRange)aRange with:(NSString *)aString
366 {
367 unsigned int bufferSize;
368 unsigned int selfLen = [self length];
369 unsigned int aStringLen = [aString length];
370 unichar *buffer;
371 NSRange localRange;
372 NSString *result;
373
374 bufferSize = selfLen + aStringLen - aRange.length;
375 buffer = NSAllocateMemoryPages(bufferSize*sizeof(unichar));
376
377 /* Get first part into buffer */
378 localRange.location = 0;
379 localRange.length = aRange.location;
380 [self getCharacters:buffer range:localRange];
381
382 /* Get middle part into buffer */
383 localRange.location = 0;
384 localRange.length = aStringLen;
385 [aString getCharacters:(buffer+aRange.location) range:localRange];
386
387 /* Get last part into buffer */
388 localRange.location = aRange.location + aRange.length;
389 localRange.length = selfLen - localRange.location;
390 [self getCharacters:(buffer+aRange.location+aStringLen) range:localRange];
391
392 /* Build output string */
393 result = [NSString stringWithCharacters:buffer length:bufferSize];
394
395 NSDeallocateMemoryPages(buffer, bufferSize);
396
397 return result;
398 }
399
400 @end
401
402
403
404 #ifdef main
405 # undef main
406 #endif
407
408
409 /* Main entry point to executable - should *not* be SDL_main! */
410 int main (int argc, char **argv)
411 {
412 /* Copy the arguments into a global variable */
413 /* This is passed if we are launched by double-clicking */
414 if ( argc >= 2 && strncmp (argv[1], "-psn", 4) == 0 ) {
415 gArgv = (char **) SDL_malloc(sizeof (char *) * 2);
416 gArgv[0] = argv[0];
417 gArgv[1] = NULL;
418 gArgc = 1;
419 gFinderLaunch = YES;
420 } else {
421 int i;
422 gArgc = argc;
423 gArgv = (char **) SDL_malloc(sizeof (char *) * (argc+1));
424 for (i = 0; i <= argc; i++)
425 gArgv[i] = argv[i];
426 gFinderLaunch = NO;
427 }
428
429 #if SDL_USE_NIB_FILE
430 [SDLApplication poseAsClass:[NSApplication class]];
431 NSApplicationMain (argc, argv);
432 #else
433 CustomApplicationMain (argc, argv);
434 #endif
435 return 0;
436 }