ITMacResourceFile.m

   1 #import "ITMacResourceFile.h"
   2
   3 @implementation ITMacResourceFile
   4
   5 + (HFSUniStr255)dataForkName {
   6         HFSUniStr255 dataForkName;
   7         FSGetDataForkName(&dataForkName);
   8         return dataForkName;
   9 }
  10
  11 + (HFSUniStr255)resourceForkName {
  12         HFSUniStr255 resourceForkName;
  13         FSGetResourceForkName(&resourceForkName);
  14         return resourceForkName;
  15 }
  16
  17 - (id)initWithContentsOfFile:(NSString *)path {
  18         return [self initWithContentsOfFile:path fork:[ITMacResourceFile dataForkName]];
  19 }
  20
  21 - (id)initWithContentsOfFile:(NSString *)path fork:(HFSUniStr255)namedFork {
  22         if (self = [super init]) {
  23                 if (FSPathMakeRef([path fileSystemRepresentation], &_fileReference, NULL) == noErr) {
  24                         FSOpenResourceFile(&_fileReference, namedFork.length, namedFork.unicode, fsRdPerm, &_referenceNumber);
  25                 } else {
  26                         [super release];
  27                         self = nil;
  28                 }
  29         }
  30         return self;
  31 }
  32
  33 - (ITMacResource *)resourceOfType:(ITMacResourceType)type withID:(short)idNum {
  34         return [[ITMacResource subclassForType:type] resourceWithHandle:GetResource((ResType)type, idNum)];
  35 }
  36
  37 - (ITMacResource *)resourceOfType:(ITMacResourceType)type withName:(NSString *)name {
  38         Str255 _buffer;
  39         StringPtr _ptr = (StringPtr)CFStringGetPascalStringPtr((CFStringRef)name, kCFStringEncodingMacRomanLatin1);
  40         if (_ptr == NULL) {
  41                 if (CFStringGetPascalString((CFStringRef)name, _buffer, 256, kCFStringEncodingMacRomanLatin1)) {
  42                         _ptr = _buffer;
  43                 } else {
  44                         return nil;
  45                 }
  46         }
  47         return [[ITMacResource subclassForType:type] resourceWithHandle:GetNamedResource((ResType)type,_ptr)];
  48 }
  49
  50 - (void)dealloc {
  51         if (_referenceNumber) {
  52                 CloseResFile(_referenceNumber);
  53         }
  54         [super dealloc];
  55 }
  56
  57 @end