annotate src/main/macosx/SDLMain.m @ 1125:a6011e1394d9

Apparently MacOS X will sometimes pass command line arguments to a Cocoa app as an openFile() message, so we have to make sure we were launched from the Finder before accepting these as drag'n'drop documents, or they will just duplicate what's already in argc/argv.
author Ryan C. Gordon <icculus@icculus.org>
date Mon, 22 Aug 2005 14:18:15 +0000
parents 39408f59a0f7
children 304d8dd6a989
rev   line source
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1 /* SDLMain.m - main entry point for our Cocoa-ized SDL app
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2 Initial Version: Darrell Walisser <dwaliss1@purdue.edu>
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3 Non-NIB-Code & other changes: Max Horn <max@quendi.de>
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4
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5 Feel free to customize this file to suit your needs
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6 */
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7
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8 #import "SDL.h"
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9 #import "SDLMain.h"
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10 #import <sys/param.h> /* for MAXPATHLEN */
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11 #import <unistd.h>
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12
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13 /* Use this flag to determine whether we use SDLMain.nib or not */
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14 #define SDL_USE_NIB_FILE 0
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15
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16 /* Use this flag to determine whether we use CPS (docking) or not */
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17 #define SDL_USE_CPS 1
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18 #ifdef SDL_USE_CPS
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19 /* Portions of CPS.h */
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20 typedef struct CPSProcessSerNum
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21 {
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22 UInt32 lo;
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23 UInt32 hi;
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24 } CPSProcessSerNum;
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25
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26 extern OSErr CPSGetCurrentProcess( CPSProcessSerNum *psn);
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27 extern OSErr CPSEnableForegroundOperation( CPSProcessSerNum *psn, UInt32 _arg2, UInt32 _arg3, UInt32 _arg4, UInt32 _arg5);
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28 extern OSErr CPSSetFrontProcess( CPSProcessSerNum *psn);
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29
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30 #endif /* SDL_USE_CPS */
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31
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32 static int gArgc;
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33 static char **gArgv;
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34 static BOOL gFinderLaunch;
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35 static BOOL gCalledAppMainline = FALSE;
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36
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37 static NSString *getApplicationName(void)
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38 {
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39 NSDictionary *dict;
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40 NSString *appName = 0;
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41
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42 /* Determine the application name */
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43 dict = (NSDictionary *)CFBundleGetInfoDictionary(CFBundleGetMainBundle());
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44 if (dict)
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45 appName = [dict objectForKey: @"CFBundleName"];
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46
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47 if (![appName length])
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48 appName = [[NSProcessInfo processInfo] processName];
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49
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50 return appName;
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51 }
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52
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53 #if SDL_USE_NIB_FILE
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54 /* A helper category for NSString */
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55 @interface NSString (ReplaceSubString)
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56 - (NSString *)stringByReplacingRange:(NSRange)aRange with:(NSString *)aString;
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57 @end
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58 #endif
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59
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60 @interface SDLApplication : NSApplication
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61 @end
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62
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63 @implementation SDLApplication
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64 /* Invoked from the Quit menu item */
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65 - (void)terminate:(id)sender
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66 {
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67 /* Post a SDL_QUIT event */
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68 SDL_Event event;
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69 event.type = SDL_QUIT;
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70 SDL_PushEvent(&event);
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71 }
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72 @end
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73
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74 /* The main class of the application, the application's delegate */
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75 @implementation SDLMain
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76
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77 /* Set the working directory to the .app's parent directory */
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78 - (void) setupWorkingDirectory:(BOOL)shouldChdir
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79 {
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80 if (shouldChdir)
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81 {
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82 char parentdir[MAXPATHLEN];
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83 CFURLRef url = CFBundleCopyBundleURL(CFBundleGetMainBundle());
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84 CFURLRef url2 = CFURLCreateCopyDeletingLastPathComponent(0, url);
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85 if (CFURLGetFileSystemRepresentation(url2, true, parentdir, MAXPATHLEN)) {
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86 assert ( chdir (parentdir) == 0 ); /* chdir to the binary app's parent */
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87 }
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88 CFRelease(url);
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89 CFRelease(url2);
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90 }
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91
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92 }
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93
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94 #if SDL_USE_NIB_FILE
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95
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96 /* Fix menu to contain the real app name instead of "SDL App" */
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97 - (void)fixMenu:(NSMenu *)aMenu withAppName:(NSString *)appName
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98 {
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99 NSRange aRange;
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100 NSEnumerator *enumerator;
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101 NSMenuItem *menuItem;
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102
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103 aRange = [[aMenu title] rangeOfString:@"SDL App"];
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104 if (aRange.length != 0)
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105 [aMenu setTitle: [[aMenu title] stringByReplacingRange:aRange with:appName]];
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106
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107 enumerator = [[aMenu itemArray] objectEnumerator];
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108 while ((menuItem = [enumerator nextObject]))
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109 {
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110 aRange = [[menuItem title] rangeOfString:@"SDL App"];
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111 if (aRange.length != 0)
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112 [menuItem setTitle: [[menuItem title] stringByReplacingRange:aRange with:appName]];
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113 if ([menuItem hasSubmenu])
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114 [self fixMenu:[menuItem submenu] withAppName:appName];
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115 }
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116 [ aMenu sizeToFit ];
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117 }
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118
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119 #else
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120
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121 static void setApplicationMenu(void)
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122 {
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123 /* warning: this code is very odd */
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124 NSMenu *appleMenu;
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125 NSMenuItem *menuItem;
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126 NSString *title;
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127 NSString *appName;
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128
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129 appName = getApplicationName();
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130 appleMenu = [[NSMenu alloc] initWithTitle:@""];
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131
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132 /* Add menu items */
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133 title = [@"About " stringByAppendingString:appName];
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134 [appleMenu addItemWithTitle:title action:@selector(orderFrontStandardAboutPanel:) keyEquivalent:@""];
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135
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136 [appleMenu addItem:[NSMenuItem separatorItem]];
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137
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138 title = [@"Hide " stringByAppendingString:appName];
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139 [appleMenu addItemWithTitle:title action:@selector(hide:) keyEquivalent:@"h"];
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140
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141 menuItem = (NSMenuItem *)[appleMenu addItemWithTitle:@"Hide Others" action:@selector(hideOtherApplications:) keyEquivalent:@"h"];
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142 [menuItem setKeyEquivalentModifierMask:(NSAlternateKeyMask|NSCommandKeyMask)];
221
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143
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144 [appleMenu addItemWithTitle:@"Show All" action:@selector(unhideAllApplications:) keyEquivalent:@""];
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145
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146 [appleMenu addItem:[NSMenuItem separatorItem]];
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147
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148 title = [@"Quit " stringByAppendingString:appName];
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149 [appleMenu addItemWithTitle:title action:@selector(terminate:) keyEquivalent:@"q"];
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150
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151
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152 /* Put menu into the menubar */
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153 menuItem = [[NSMenuItem alloc] initWithTitle:@"" action:nil keyEquivalent:@""];
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154 [menuItem setSubmenu:appleMenu];
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155 [[NSApp mainMenu] addItem:menuItem];
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156
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157 /* Tell the application object that this is now the application menu */
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158 [NSApp setAppleMenu:appleMenu];
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159
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160 /* Finally give up our references to the objects */
221
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161 [appleMenu release];
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162 [menuItem release];
221
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163 }
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164
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165 /* Create a window menu */
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166 static void setupWindowMenu(void)
221
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167 {
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168 NSMenu *windowMenu;
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169 NSMenuItem *windowMenuItem;
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170 NSMenuItem *menuItem;
221
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171
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172 windowMenu = [[NSMenu alloc] initWithTitle:@"Window"];
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173
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174 /* "Minimize" item */
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175 menuItem = [[NSMenuItem alloc] initWithTitle:@"Minimize" action:@selector(performMiniaturize:) keyEquivalent:@"m"];
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176 [windowMenu addItem:menuItem];
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177 [menuItem release];
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178
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179 /* Put menu into the menubar */
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180 windowMenuItem = [[NSMenuItem alloc] initWithTitle:@"Window" action:nil keyEquivalent:@""];
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181 [windowMenuItem setSubmenu:windowMenu];
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182 [[NSApp mainMenu] addItem:windowMenuItem];
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183
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184 /* Tell the application object that this is now the window menu */
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185 [NSApp setWindowsMenu:windowMenu];
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186
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187 /* Finally give up our references to the objects */
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188 [windowMenu release];
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189 [windowMenuItem release];
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190 }
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191
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192 /* Replacement for NSApplicationMain */
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193 static void CustomApplicationMain (argc, argv)
221
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194 {
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195 NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
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196 SDLMain *sdlMain;
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197
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198 /* Ensure the application object is initialised */
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199 [SDLApplication sharedApplication];
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200
476
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201 #ifdef SDL_USE_CPS
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202 {
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203 CPSProcessSerNum PSN;
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204 /* Tell the dock about us */
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205 if (!CPSGetCurrentProcess(&PSN))
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206 if (!CPSEnableForegroundOperation(&PSN,0x03,0x3C,0x2C,0x1103))
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207 if (!CPSSetFrontProcess(&PSN))
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208 [SDLApplication sharedApplication];
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209 }
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210 #endif /* SDL_USE_CPS */
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211
221
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212 /* Set up the menubar */
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213 [NSApp setMainMenu:[[NSMenu alloc] init]];
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214 setApplicationMenu();
221
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215 setupWindowMenu();
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216
221
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217 /* Create SDLMain and make it the app delegate */
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218 sdlMain = [[SDLMain alloc] init];
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219 [NSApp setDelegate:sdlMain];
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220
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221 /* Start the main event loop */
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222 [NSApp run];
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223
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224 [sdlMain release];
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225 [pool release];
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226 }
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227
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228 #endif
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229
1113
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230
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231 /*
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232 * Catch document open requests...this lets us notice files when the app
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233 * was launched by double-clicking a document, or when a document was
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234 * dragged/dropped on the app's icon. You need to have a
39408f59a0f7 In MacOSX, when drag'n'dropping a document on an SDL app, or double-clicking a
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235 * CFBundleDocumentsType section in your Info.plist to get this message,
39408f59a0f7 In MacOSX, when drag'n'dropping a document on an SDL app, or double-clicking a
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236 * apparently.
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237 *
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238 * Files are added to gArgv, so to the app, they'll look like command line
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239 * arguments. Previously, apps launched from the finder had nothing but
39408f59a0f7 In MacOSX, when drag'n'dropping a document on an SDL app, or double-clicking a
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240 * an argv[0].
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241 *
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242 * This message may be received multiple times to open several docs on launch.
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243 *
39408f59a0f7 In MacOSX, when drag'n'dropping a document on an SDL app, or double-clicking a
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244 * This message is ignored once the app's mainline has been called.
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245 */
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246 - (BOOL)application:(NSApplication *)theApplication openFile:(NSString *)filename
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247 {
1125
a6011e1394d9 Apparently MacOS X will sometimes pass command line arguments to a Cocoa
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248 if (!gFinderLaunch) /* MacOS is passing command line args. */
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249 return FALSE;
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250
1113
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251 if (gCalledAppMainline) /* app has started, ignore this document. */
39408f59a0f7 In MacOSX, when drag'n'dropping a document on an SDL app, or double-clicking a
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252 return FALSE;
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253
39408f59a0f7 In MacOSX, when drag'n'dropping a document on an SDL app, or double-clicking a
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254 unsigned buflen = [filename lengthOfBytesUsingEncoding:NSUTF8StringEncoding] + 1;
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255 char *arg = (char *) malloc(buflen);
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256 if (arg == NULL)
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257 return FALSE;
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258
39408f59a0f7 In MacOSX, when drag'n'dropping a document on an SDL app, or double-clicking a
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259 char **newargv = (char **) realloc(gArgv, sizeof (char *) * (gArgc + 2));
39408f59a0f7 In MacOSX, when drag'n'dropping a document on an SDL app, or double-clicking a
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260 if (newargv == NULL)
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261 {
39408f59a0f7 In MacOSX, when drag'n'dropping a document on an SDL app, or double-clicking a
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262 free(arg);
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263 return FALSE;
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264 }
39408f59a0f7 In MacOSX, when drag'n'dropping a document on an SDL app, or double-clicking a
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265 gArgv = newargv;
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266
39408f59a0f7 In MacOSX, when drag'n'dropping a document on an SDL app, or double-clicking a
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diff changeset
267 BOOL rc = [filename getCString:arg maxLength:buflen encoding:NSUTF8StringEncoding];
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268 if (!rc)
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269 free(arg);
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270 else
39408f59a0f7 In MacOSX, when drag'n'dropping a document on an SDL app, or double-clicking a
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diff changeset
271 {
39408f59a0f7 In MacOSX, when drag'n'dropping a document on an SDL app, or double-clicking a
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272 gArgv[gArgc++] = arg;
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273 gArgv[gArgc] = NULL;
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274 }
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275 return rc;
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276 }
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277
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278
194
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279 /* Called when the internal event loop has just started running */
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280 - (void) applicationDidFinishLaunching: (NSNotification *) note
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281 {
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282 int status;
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283
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284 /* Set the working directory to the .app's parent directory */
221
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285 [self setupWorkingDirectory:gFinderLaunch];
194
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286
221
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287 #if SDL_USE_NIB_FILE
194
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288 /* Set the main menu to contain the real app name instead of "SDL App" */
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289 [self fixMenu:[NSApp mainMenu] withAppName:getApplicationName()];
221
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290 #endif
194
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291
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292 /* Hand off to main application code */
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293 gCalledAppMainline = TRUE;
194
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294 status = SDL_main (gArgc, gArgv);
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295
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296 /* We're done, thank you for playing */
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297 exit(status);
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298 }
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299 @end
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300
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301
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302 @implementation NSString (ReplaceSubString)
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303
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304 - (NSString *)stringByReplacingRange:(NSRange)aRange with:(NSString *)aString
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305 {
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306 unsigned int bufferSize;
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307 unsigned int selfLen = [self length];
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308 unsigned int aStringLen = [aString length];
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309 unichar *buffer;
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310 NSRange localRange;
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311 NSString *result;
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312
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313 bufferSize = selfLen + aStringLen - aRange.length;
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314 buffer = NSAllocateMemoryPages(bufferSize*sizeof(unichar));
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315
221
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316 /* Get first part into buffer */
194
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317 localRange.location = 0;
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318 localRange.length = aRange.location;
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319 [self getCharacters:buffer range:localRange];
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320
221
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321 /* Get middle part into buffer */
194
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322 localRange.location = 0;
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323 localRange.length = aStringLen;
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324 [aString getCharacters:(buffer+aRange.location) range:localRange];
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325
221
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326 /* Get last part into buffer */
194
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327 localRange.location = aRange.location + aRange.length;
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328 localRange.length = selfLen - localRange.location;
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329 [self getCharacters:(buffer+aRange.location+aStringLen) range:localRange];
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330
221
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331 /* Build output string */
194
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332 result = [NSString stringWithCharacters:buffer length:bufferSize];
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333
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334 NSDeallocateMemoryPages(buffer, bufferSize);
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335
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336 return result;
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337 }
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338
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339 @end
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340
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341
221
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342
194
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343 #ifdef main
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344 # undef main
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345 #endif
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346
221
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347
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348 /* Main entry point to executable - should *not* be SDL_main! */
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349 int main (int argc, char **argv)
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350 {
194
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351 /* Copy the arguments into a global variable */
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352 /* This is passed if we are launched by double-clicking */
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353 if ( argc >= 2 && strncmp (argv[1], "-psn", 4) == 0 ) {
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354 gArgv = (char **) malloc(sizeof (char *) * 2);
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355 gArgv[0] = argv[0];
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356 gArgv[1] = NULL;
194
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357 gArgc = 1;
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358 gFinderLaunch = YES;
194
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359 } else {
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360 int i;
194
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361 gArgc = argc;
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362 gArgv = (char **) malloc(sizeof (char *) * (argc+1));
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363 for (i = 0; i <= argc; i++)
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364 gArgv[i] = argv[i];
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365 gFinderLaunch = NO;
194
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366 }
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367
221
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368 #if SDL_USE_NIB_FILE
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369 [SDLApplication poseAsClass:[NSApplication class]];
194
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370 NSApplicationMain (argc, argv);
221
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diff changeset
371 #else
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372 CustomApplicationMain (argc, argv);
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373 #endif
194
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374 return 0;
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375 }