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