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