source: abuse/trunk/osx/SDLMain.m @ 2

Last change on this file since 2 was 2, checked in by Sam Hocevar, 14 years ago
  • imported original 0.7.0 tarball
File size: 5.2 KB
Line 
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 <Cocoa/Cocoa.h>
10
11@interface SDLMain : NSObject
12@end
13
14#import <sys/param.h> /* for MAXPATHLEN */
15#import <unistd.h>
16
17/* Use this flag to determine whether we use SDLMain.nib or not */
18#define         SDL_USE_NIB_FILE        1
19
20
21static int    gArgc;
22static char  **gArgv;
23static BOOL   gFinderLaunch;
24
25#if SDL_USE_NIB_FILE
26/* A helper category for NSString */
27@interface NSString (ReplaceSubString)
28- (NSString *)stringByReplacingRange:(NSRange)aRange with:(NSString *)aString;
29@end
30#endif
31
32@interface SDLApplication : NSApplication
33@end
34
35@implementation SDLApplication
36/* Invoked from the Quit menu item */
37- (void)terminate:(id)sender
38{
39    /* Post a SDL_QUIT event */
40    SDL_Event event;
41    event.type = SDL_QUIT;
42    SDL_PushEvent(&event);
43}
44@end
45
46
47/* The main class of the application, the application's delegate */
48@implementation SDLMain
49- (void)quit:(id)sender
50{
51    /* Post a SDL_QUIT event */
52    SDL_Event event;
53    event.type = SDL_QUIT;
54    SDL_PushEvent(&event);
55}
56/* Set the working directory to the .app's parent directory */
57- (void) setupWorkingDirectory:(BOOL)shouldChdir
58{
59    char parentdir[MAXPATHLEN];
60    char *c;
61   
62    strncpy ( parentdir, gArgv[0], sizeof(parentdir) );
63    c = (char*) parentdir;
64
65    while (*c != '\0')     /* go to end */
66        c++;
67   
68    while (*c != '/')      /* back up to parent */
69        c--;
70   
71    *c++ = '\0';             /* cut off last part (binary name) */
72 
73    if (shouldChdir)
74    {
75      assert ( chdir (parentdir) == 0 );   /* chdir to the binary app's parent */
76      assert ( chdir ("../../../") == 0 ); /* chdir to the .app's parent */
77    }
78}
79
80#if SDL_USE_NIB_FILE
81
82/* Fix menu to contain the real app name instead of "SDL App" */
83- (void)fixMenu:(NSMenu *)aMenu withAppName:(NSString *)appName
84{
85    NSRange aRange;
86    NSEnumerator *enumerator;
87    NSMenuItem *menuItem;
88
89    aRange = [[aMenu title] rangeOfString:@"SDL App"];
90    if (aRange.length != 0)
91        [aMenu setTitle: [[aMenu title] stringByReplacingRange:aRange with:appName]];
92
93    enumerator = [[aMenu itemArray] objectEnumerator];
94    while ((menuItem = [enumerator nextObject]))
95    {
96        aRange = [[menuItem title] rangeOfString:@"SDL App"];
97        if (aRange.length != 0)
98            [menuItem setTitle: [[menuItem title] stringByReplacingRange:aRange with:appName]];
99        if ([menuItem hasSubmenu])
100            [self fixMenu:[menuItem submenu] withAppName:appName];
101    }
102    [ aMenu sizeToFit ];
103}
104
105#endif
106
107/* Called when the internal event loop has just started running */
108- (void) applicationDidFinishLaunching: (NSNotification *) note
109{
110    int status;
111
112    /* Set the working directory to the .app's parent directory */
113    [self setupWorkingDirectory:gFinderLaunch];
114
115#if SDL_USE_NIB_FILE
116    /* Set the main menu to contain the real app name instead of "SDL App" */
117    [self fixMenu:[NSApp mainMenu] withAppName:[[NSProcessInfo processInfo] processName]];
118#endif
119
120    /* Hand off to main application code */
121    status = SDL_main (gArgc, gArgv);
122
123    /* We're done, thank you for playing */
124    exit(status);
125}
126@end
127
128
129@implementation NSString (ReplaceSubString)
130
131- (NSString *)stringByReplacingRange:(NSRange)aRange with:(NSString *)aString
132{
133    unsigned int bufferSize;
134    unsigned int selfLen = [self length];
135    unsigned int aStringLen = [aString length];
136    unichar *buffer;
137    NSRange localRange;
138    NSString *result;
139
140    bufferSize = selfLen + aStringLen - aRange.length;
141    buffer = NSAllocateMemoryPages(bufferSize*sizeof(unichar));
142   
143    /* Get first part into buffer */
144    localRange.location = 0;
145    localRange.length = aRange.location;
146    [self getCharacters:buffer range:localRange];
147   
148    /* Get middle part into buffer */
149    localRange.location = 0;
150    localRange.length = aStringLen;
151    [aString getCharacters:(buffer+aRange.location) range:localRange];
152     
153    /* Get last part into buffer */
154    localRange.location = aRange.location + aRange.length;
155    localRange.length = selfLen - localRange.location;
156    [self getCharacters:(buffer+aRange.location+aStringLen) range:localRange];
157   
158    /* Build output string */
159    result = [NSString stringWithCharacters:buffer length:bufferSize];
160   
161    NSDeallocateMemoryPages(buffer, bufferSize);
162   
163    return result;
164}
165
166@end
167
168
169
170#ifdef main
171#  undef main
172#endif
173
174
175/* Main entry point to executable - should *not* be SDL_main! */
176int main (int argc, char **argv)
177{
178
179    /* Copy the arguments into a global variable */
180    int i;
181   
182    /* This is passed if we are launched by double-clicking */
183    if ( argc >= 2 && strncmp (argv[1], "-psn", 4) == 0 ) {
184        gArgc = 1;
185        gFinderLaunch = YES;
186    } else {
187        gArgc = argc;
188        gFinderLaunch = NO;
189    }
190    gArgv = (char**) malloc (sizeof(*gArgv) * (gArgc+1));
191    assert (gArgv != NULL);
192    for (i = 0; i < gArgc; i++)
193        gArgv[i] = argv[i];
194    gArgv[i] = NULL;
195
196#if SDL_USE_NIB_FILE
197    [SDLApplication poseAsClass:[NSApplication class]];
198    NSApplicationMain (argc, argv);
199#endif
200    return 0;
201}
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