49 lines
888 B
Objective-C
49 lines
888 B
Objective-C
|
|
/*
|
|
File: RFImageToDataTransformer.m
|
|
Abstract: A value transformer, which transforms a UIImage or NSImage object into an NSData object.
|
|
|
|
Based on Apple's UIImageToDataTransformer
|
|
|
|
Copyright (C) 2010 Apple Inc. All Rights Reserved.
|
|
Copyright (C) 2011 RF.com All Rights Reserved.
|
|
*/
|
|
|
|
#import "RFImageToDataTransformer.h"
|
|
|
|
#if TARGET_OS_IPHONE
|
|
#import <UIKit/UIKit.h>
|
|
#else
|
|
|
|
#endif
|
|
|
|
|
|
@implementation RFImageToDataTransformer
|
|
|
|
+ (BOOL)allowsReverseTransformation {
|
|
return YES;
|
|
}
|
|
|
|
+ (Class)transformedValueClass {
|
|
return [NSData class];
|
|
}
|
|
|
|
- (id)transformedValue:(id)value {
|
|
#if TARGET_OS_IPHONE
|
|
return UIImagePNGRepresentation(value);
|
|
#else
|
|
return [(NSImage *)value TIFFRepresentation];
|
|
#endif
|
|
}
|
|
|
|
- (id)reverseTransformedValue:(id)value {
|
|
#if TARGET_OS_IPHONE
|
|
return [[UIImage alloc] initWithData:value];
|
|
#else
|
|
return [[NSImage alloc] initWithData:value];
|
|
#endif
|
|
}
|
|
|
|
@end
|
|
|