/*
|
* Copyright 2012 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 "ZXBinarizer.h"
|
#import "ZXBinaryBitmap.h"
|
#import "ZXBitArray.h"
|
#import "ZXBitMatrix.h"
|
|
@interface ZXBinaryBitmap ()
|
|
@property (nonatomic, strong, readonly) ZXBinarizer *binarizer;
|
@property (nonatomic, strong) ZXBitMatrix *matrix;
|
|
@end
|
|
@implementation ZXBinaryBitmap
|
|
- (id)initWithBinarizer:(ZXBinarizer *)binarizer {
|
if (self = [super init]) {
|
if (binarizer == nil) {
|
[NSException raise:NSInvalidArgumentException format:@"Binarizer must be non-null."];
|
}
|
|
_binarizer = binarizer;
|
}
|
|
return self;
|
}
|
|
+ (id)binaryBitmapWithBinarizer:(ZXBinarizer *)binarizer {
|
return [[self alloc] initWithBinarizer:binarizer];
|
}
|
|
- (int)width {
|
return self.binarizer.width;
|
}
|
|
- (int)height {
|
return self.binarizer.height;
|
}
|
|
- (ZXBitArray *)blackRow:(int)y row:(ZXBitArray *)row error:(NSError **)error {
|
return [self.binarizer blackRow:y row:row error:error];
|
}
|
|
- (ZXBitMatrix *)blackMatrixWithError:(NSError **)error {
|
if (self.matrix == nil) {
|
self.matrix = [self.binarizer blackMatrixWithError:error];
|
}
|
return self.matrix;
|
}
|
|
- (BOOL)cropSupported {
|
return [self.binarizer luminanceSource].cropSupported;
|
}
|
|
- (ZXBinaryBitmap *)crop:(int)left top:(int)top width:(int)aWidth height:(int)aHeight {
|
ZXLuminanceSource *newSource = [[self.binarizer luminanceSource] crop:left top:top width:aWidth height:aHeight];
|
return [[ZXBinaryBitmap alloc] initWithBinarizer:[self.binarizer createBinarizer:newSource]];
|
}
|
|
- (BOOL)rotateSupported {
|
return [self.binarizer luminanceSource].rotateSupported;
|
}
|
|
- (ZXBinaryBitmap *)rotateCounterClockwise {
|
ZXLuminanceSource *newSource = [[self.binarizer luminanceSource] rotateCounterClockwise];
|
return [[ZXBinaryBitmap alloc] initWithBinarizer:[self.binarizer createBinarizer:newSource]];
|
}
|
|
- (ZXBinaryBitmap *)rotateCounterClockwise45 {
|
ZXLuminanceSource *newSource = [[self.binarizer luminanceSource] rotateCounterClockwise45];
|
return [[ZXBinaryBitmap alloc] initWithBinarizer:[self.binarizer createBinarizer:newSource]];
|
}
|
|
- (NSString *)description {
|
ZXBitMatrix *matrix = [self blackMatrixWithError:nil];
|
if (matrix) {
|
return [matrix description];
|
} else {
|
return @"";
|
}
|
}
|
|
@end
|
