zxing/objc/src/ZXing/ZXImage.mm
2011-05-18 19:13:07 +00:00

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// -*- mode:objc; c-basic-offset:2; indent-tabs-mode:nil -*-
/*
* Copyright 2011 ZXing authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#import <ZXing/ZXImage.h>
@implementation ZXImage
@synthesize cgimage;
- (ZXImage*)initWithURL:(NSURL const*)url {
CGDataProviderRef provider = CGDataProviderCreateWithURL((CFURLRef)url);
if (provider) {
CGImageSourceRef source = CGImageSourceCreateWithDataProvider(provider, 0);
if (source) {
cgimage = CGImageSourceCreateImageAtIndex(source, 0, 0);
CFRelease(source);
}
CGDataProviderRelease(provider);
}
if (cgimage) {
return self;
} else {
return 0;
}
}
- (size_t)width {
return CGImageGetWidth(cgimage);
}
- (size_t)height {
return CGImageGetHeight(cgimage);
}
- (void)dealloc {
if (cgimage) {
CGImageRelease(cgimage);
}
[super dealloc];
}
@end