annotate src/main/macosx/SDLMain.m @ 911:04a403e4ccf5

Date: Mon, 3 May 2004 03:15:01 +0100 From: David Symmonds Subject: SDL Typedef Structs Hi, Thanks for the SDL libraries, I have been using them for about a year now and they are really brilliant. One thing that I have just found whilst using them through C++ (and needing forward declarations) is that when you typedef structs you sometimes use typedef struct Name { ... }Name; e.g. SDL_Surface and other times use typedef struct { ... }Name; e.g. SDL_Rect The first type works fine, when I define a header file I can just put 'struct Name;' at the top and use the Name throughout. However, the second type is harder to use in a header, and I haven't found a way yet, other than to include 'SDL.h' in the header file (undesirable). Would there be any harm in changing the definition of SDL_Rect and such like to the second form?
author Sam Lantinga <slouken@libsdl.org>
date Sun, 18 Jul 2004 22:57:40 +0000
parents a7129c0083f4
children 217f119a19a0
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
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36 #if SDL_USE_NIB_FILE
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37 /* A helper category for NSString */
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38 @interface NSString (ReplaceSubString)
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39 - (NSString *)stringByReplacingRange:(NSRange)aRange with:(NSString *)aString;
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40 @end
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41 #else
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42 /* An internal Apple class used to setup Apple menus */
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43 @interface NSAppleMenuController:NSObject {}
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44 - (void)controlMenu:(NSMenu *)aMenu;
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45 @end
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46 #endif
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47
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48 @interface SDLApplication : NSApplication
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49 @end
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50
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51 @implementation SDLApplication
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52 /* Invoked from the Quit menu item */
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53 - (void)terminate:(id)sender
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54 {
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55 /* Post a SDL_QUIT event */
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56 SDL_Event event;
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57 event.type = SDL_QUIT;
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58 SDL_PushEvent(&event);
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59 }
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60 @end
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61
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62
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63 /* The main class of the application, the application's delegate */
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64 @implementation SDLMain
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65
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66 /* Set the working directory to the .app's parent directory */
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67 - (void) setupWorkingDirectory:(BOOL)shouldChdir
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68 {
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69
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70 if (shouldChdir)
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71 {
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72 char parentdir[MAXPATHLEN];
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73 char *c;
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74
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75 strncpy ( parentdir, gArgv[0], sizeof(parentdir) );
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76 c = (char*) parentdir;
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77
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78 while (*c != '\0') /* go to end */
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79 c++;
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80
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81 while (*c != '/') /* back up to parent */
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82 c--;
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83
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84 *c++ = '\0'; /* cut off last part (binary name) */
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85
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86 assert ( chdir (parentdir) == 0 ); /* chdir to the binary app's parent */
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87 assert ( chdir ("../../../") == 0 ); /* chdir to the .app's parent */
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88 }
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89 }
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90
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91 #if SDL_USE_NIB_FILE
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92
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93 /* Fix menu to contain the real app name instead of "SDL App" */
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94 - (void)fixMenu:(NSMenu *)aMenu withAppName:(NSString *)appName
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95 {
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96 NSRange aRange;
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97 NSEnumerator *enumerator;
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98 NSMenuItem *menuItem;
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99
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100 aRange = [[aMenu title] rangeOfString:@"SDL App"];
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101 if (aRange.length != 0)
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102 [aMenu setTitle: [[aMenu title] stringByReplacingRange:aRange with:appName]];
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103
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104 enumerator = [[aMenu itemArray] objectEnumerator];
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105 while ((menuItem = [enumerator nextObject]))
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106 {
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107 aRange = [[menuItem title] rangeOfString:@"SDL App"];
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108 if (aRange.length != 0)
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109 [menuItem setTitle: [[menuItem title] stringByReplacingRange:aRange with:appName]];
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110 if ([menuItem hasSubmenu])
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111 [self fixMenu:[menuItem submenu] withAppName:appName];
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112 }
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113 [ aMenu sizeToFit ];
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114 }
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115
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116 #else
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117
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118 void setupAppleMenu(void)
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119 {
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120 /* warning: this code is very odd */
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121 NSAppleMenuController *appleMenuController;
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122 NSMenu *appleMenu;
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123 NSMenuItem *appleMenuItem;
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124
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125 appleMenuController = [[NSAppleMenuController alloc] init];
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126 appleMenu = [[NSMenu alloc] initWithTitle:@""];
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127 appleMenuItem = [[NSMenuItem alloc] initWithTitle:@"" action:nil keyEquivalent:@""];
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128
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129 [appleMenuItem setSubmenu:appleMenu];
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130
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131 /* yes, we do need to add it and then remove it --
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132 if you don't add it, it doesn't get displayed
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133 if you don't remove it, you have an extra, titleless item in the menubar
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134 when you remove it, it appears to stick around
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135 very, very odd */
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136 [[NSApp mainMenu] addItem:appleMenuItem];
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137 [appleMenuController controlMenu:appleMenu];
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138 [[NSApp mainMenu] removeItem:appleMenuItem];
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139 [appleMenu release];
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140 [appleMenuItem release];
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141 }
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142
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143 /* Create a window menu */
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144 void setupWindowMenu(void)
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145 {
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146 NSMenu *windowMenu;
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147 NSMenuItem *windowMenuItem;
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148 NSMenuItem *menuItem;
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149
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150
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151 windowMenu = [[NSMenu alloc] initWithTitle:@"Window"];
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152
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153 /* "Minimize" item */
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154 menuItem = [[NSMenuItem alloc] initWithTitle:@"Minimize" action:@selector(performMiniaturize:) keyEquivalent:@"m"];
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155 [windowMenu addItem:menuItem];
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156 [menuItem release];
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157
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158 /* Put menu into the menubar */
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159 windowMenuItem = [[NSMenuItem alloc] initWithTitle:@"Window" action:nil keyEquivalent:@""];
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160 [windowMenuItem setSubmenu:windowMenu];
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161 [[NSApp mainMenu] addItem:windowMenuItem];
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162
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163 /* Tell the application object that this is now the window menu */
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164 [NSApp setWindowsMenu:windowMenu];
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165
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166 /* Finally give up our references to the objects */
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167 [windowMenu release];
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168 [windowMenuItem release];
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169 }
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170
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171 /* Replacement for NSApplicationMain */
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172 void CustomApplicationMain (argc, argv)
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173 {
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174 NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
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175 SDLMain *sdlMain;
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176
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177 /* Ensure the application object is initialised */
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178 [SDLApplication sharedApplication];
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179
476
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180 #ifdef SDL_USE_CPS
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181 {
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182 CPSProcessSerNum PSN;
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183 /* Tell the dock about us */
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184 if (!CPSGetCurrentProcess(&PSN))
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185 if (!CPSEnableForegroundOperation(&PSN,0x03,0x3C,0x2C,0x1103))
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186 if (!CPSSetFrontProcess(&PSN))
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187 [SDLApplication sharedApplication];
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188 }
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189 #endif /* SDL_USE_CPS */
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190
221
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191 /* Set up the menubar */
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192 [NSApp setMainMenu:[[NSMenu alloc] init]];
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193 setupAppleMenu();
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194 setupWindowMenu();
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195
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196 /* Create SDLMain and make it the app delegate */
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197 sdlMain = [[SDLMain alloc] init];
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198 [NSApp setDelegate:sdlMain];
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199
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200 /* Start the main event loop */
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201 [NSApp run];
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202
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203 [sdlMain release];
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204 [pool release];
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205 }
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206
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207 #endif
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208
194
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209 /* Called when the internal event loop has just started running */
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210 - (void) applicationDidFinishLaunching: (NSNotification *) note
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211 {
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212 int status;
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213
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214 /* Set the working directory to the .app's parent directory */
221
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215 [self setupWorkingDirectory:gFinderLaunch];
194
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216
221
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217 #if SDL_USE_NIB_FILE
194
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218 /* Set the main menu to contain the real app name instead of "SDL App" */
221
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219 [self fixMenu:[NSApp mainMenu] withAppName:[[NSProcessInfo processInfo] processName]];
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220 #endif
194
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221
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222 /* Hand off to main application code */
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223 status = SDL_main (gArgc, gArgv);
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224
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225 /* We're done, thank you for playing */
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226 exit(status);
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227 }
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228 @end
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229
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230
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231 @implementation NSString (ReplaceSubString)
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232
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233 - (NSString *)stringByReplacingRange:(NSRange)aRange with:(NSString *)aString
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234 {
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235 unsigned int bufferSize;
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236 unsigned int selfLen = [self length];
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237 unsigned int aStringLen = [aString length];
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238 unichar *buffer;
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239 NSRange localRange;
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240 NSString *result;
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241
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242 bufferSize = selfLen + aStringLen - aRange.length;
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243 buffer = NSAllocateMemoryPages(bufferSize*sizeof(unichar));
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244
221
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245 /* Get first part into buffer */
194
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246 localRange.location = 0;
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247 localRange.length = aRange.location;
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248 [self getCharacters:buffer range:localRange];
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249
221
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250 /* Get middle part into buffer */
194
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251 localRange.location = 0;
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252 localRange.length = aStringLen;
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253 [aString getCharacters:(buffer+aRange.location) range:localRange];
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254
221
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255 /* Get last part into buffer */
194
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256 localRange.location = aRange.location + aRange.length;
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257 localRange.length = selfLen - localRange.location;
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258 [self getCharacters:(buffer+aRange.location+aStringLen) range:localRange];
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259
221
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260 /* Build output string */
194
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261 result = [NSString stringWithCharacters:buffer length:bufferSize];
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262
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263 NSDeallocateMemoryPages(buffer, bufferSize);
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264
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265 return result;
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266 }
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267
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268 @end
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269
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270
221
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271
194
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272 #ifdef main
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273 # undef main
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274 #endif
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275
221
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276
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277 /* Main entry point to executable - should *not* be SDL_main! */
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278 int main (int argc, char **argv)
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279 {
194
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280
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281 /* Copy the arguments into a global variable */
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282 int i;
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283
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284 /* This is passed if we are launched by double-clicking */
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285 if ( argc >= 2 && strncmp (argv[1], "-psn", 4) == 0 ) {
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286 gArgc = 1;
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287 gFinderLaunch = YES;
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288 } else {
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289 gArgc = argc;
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290 gFinderLaunch = NO;
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291 }
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292 gArgv = (char**) malloc (sizeof(*gArgv) * (gArgc+1));
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293 assert (gArgv != NULL);
221
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294 for (i = 0; i < gArgc; i++)
194
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295 gArgv[i] = argv[i];
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296 gArgv[i] = NULL;
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297
221
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298 #if SDL_USE_NIB_FILE
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299 [SDLApplication poseAsClass:[NSApplication class]];
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300 NSApplicationMain (argc, argv);
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301 #else
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302 CustomApplicationMain (argc, argv);
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303 #endif
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304 return 0;
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305 }