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