Juick/UIImage+Crop.m


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28

//
//  UIImage+Crop.m
//  Juick
//
//  Created by Vitaly Takmazov on 05.11.13.
//  Copyright (c) 2013 com.juick. All rights reserved.
//

#import "UIImage+Crop.h"

@implementation UIImage (Crop)

- (UIImage *)crop:(CGRect)rect {
    
    rect = CGRectMake(rect.origin.x*self.scale,
                      rect.origin.y*self.scale,
                      rect.size.width*self.scale,
                      rect.size.height*self.scale);
    
    CGImageRef imageRef = CGImageCreateWithImageInRect([self CGImage], rect);
    UIImage *result = [UIImage imageWithCGImage:imageRef
                                          scale:self.scale
                                    orientation:self.imageOrientation];
    CGImageRelease(imageRef);
    return result;
}

@end