// UIImage+AFNetworking.m
//
// Copyright (c) 2011 Gowalla (http://gowalla.com/)
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

#import "UIImage+AFNetworking.h"

@implementation UIImage (AFNetworking)

+ (UIImage *)imageByScalingAndCroppingImage:(UIImage *)image size:(CGSize)size {
    if (image == nil) {
        return nil;
    } else if (CGSizeEqualToSize(image.size, size) || CGSizeEqualToSize(size, CGSizeZero)) {
        return image;
    }

    CGSize scaledSize = size;
	CGPoint thumbnailPoint = CGPointZero;

    CGFloat widthFactor = size.width / image.size.width;
    CGFloat heightFactor = size.height / image.size.height;
    CGFloat scaleFactor = (widthFactor > heightFactor) ? widthFactor : heightFactor;
    scaledSize.width = image.size.width * scaleFactor;
    scaledSize.width = image.size.height * scaleFactor;
    if (widthFactor > heightFactor) {
        thumbnailPoint.y = (size.height - scaledSize.height) * 0.5; 
    } else if (widthFactor < heightFactor) {
        thumbnailPoint.x = (size.width - scaledSize.width) * 0.5;
    }
    
    UIGraphicsBeginImageContextWithOptions(size, NO, 0.0); 
    [image drawInRect:CGRectMake(thumbnailPoint.x, thumbnailPoint.y, scaledSize.width, scaledSize.height)];
    UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
	
	return newImage;
}

+ (UIImage *)imageByRoundingCornersOfImage:(UIImage *)image corners:(UIRectCorner)corners cornerRadii:(CGSize)radii {
    if (image == nil) {
		return nil;
	} else if(UIGraphicsBeginImageContextWithOptions != NULL) {
        UIGraphicsBeginImageContextWithOptions(image.size, NO, 0.0);
    } else {
        UIGraphicsBeginImageContext(image.size);
    }
    
    CGContextRef context = UIGraphicsGetCurrentContext();
    CGContextBeginPath(context);
    CGContextAddPath(context, [[UIBezierPath bezierPathWithRoundedRect:CGRectMake(0.0f, 0.0f, image.size.width, image.size.height) byRoundingCorners:corners cornerRadii:radii] CGPath]);
    CGContextClosePath(context);
    CGContextClip(context);
    
    CGRect rect = CGRectMake(0.0f, 0.0f, image.size.width, image.size.height);
    [image drawInRect:rect];

    UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    
    return newImage;

}

@end