SimpleBindingsAdoption_03/MyDocument.m
/* |
File: MyDocument.m |
Abstract: A document class to manage a single track object. |
Version: 1.1 |
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*/ |
#import "MyDocument.h" |
#import "Track.h" |
@implementation MyDocument |
/* |
sets track's volume to 0 |
*/ |
- (IBAction)muteTrack:(id)sender |
{ |
self.track.volume = 0.0; |
} |
#pragma mark - methods common to all implementations |
/* |
* These methods are the same for all implementations |
*/ |
/* |
standard init method |
creates an instance of Track and sets its volume to 5.0 |
*/ |
- (id)init |
{ |
self = [super init]; |
if (self != nil) |
{ |
_track = [[Track alloc] init]; |
self.track.volume = 5.0; |
} |
return self; |
} |
/* |
NSDocument method to return the name of the nib file for the document |
*/ |
- (NSString *)windowNibName |
{ |
return @"MyDocument"; |
} |
#pragma mark - Read and Write |
/* |
Insert code here to read your document from the given data of the specified type. |
*/ |
- (BOOL)readFromData:(NSData *)data ofType:(NSString *)typeName error:(NSError **)outError |
{ |
self.track.volume = *(float *)[data bytes]; |
return YES; |
} |
/* |
Insert code here to write your document to data of the specified type. |
*/ |
- (NSData *)dataOfType:(NSString *)typeName error:(NSError **)outError |
{ |
float volume = self.track.volume; |
return [NSData dataWithBytes:&volume length:sizeof(float)]; |
} |
@end |
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