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//
// UIImage+Utils.m
// Juick
//
// Created by Vitaly on 01.02.14.
// Copyright (c) 2014 com.juick. All rights reserved.
//
#import "UIImage+Utils.h"
@implementation UIImage (Utils)
+ (UIImage*)imageWithImage:(UIImage *)image convertToWidth:(float)width covertToHeight:(float)height {
CGSize size = CGSizeMake(width, height);
UIGraphicsBeginImageContext(size);
[image drawInRect:CGRectMake(0, 0, size.width, size.height)];
UIImage * newimage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return newimage;
}
+ (UIImage*)imageWithImage:(UIImage *)image convertToHeight:(float)height {
float ratio = image.size.height / height;
float width = image.size.width / ratio;
CGSize size = CGSizeMake(width, height);
UIGraphicsBeginImageContext(size);
[image drawInRect:CGRectMake(0, 0, size.width, size.height)];
UIImage * newimage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return newimage;
}
+ (UIImage*)imageWithImage:(UIImage *)image convertToWidth:(float)width {
float ratio = image.size.width / width;
float height = image.size.height / ratio;
CGSize size = CGSizeMake(width, height);
UIGraphicsBeginImageContext(size);
[image drawInRect:CGRectMake(0, 0, size.width, size.height)];
UIImage * newimage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return newimage;
}
+ (UIImage*)imageWithImage:(UIImage *)image fitInsideWidth:(float)width fitInsideHeight:(float)height {
if (image.size.height >= image.size.width) {
return [UIImage imageWithImage:image convertToWidth:width];
} else {
return [UIImage imageWithImage:image convertToHeight:height];
}
}
+ (UIImage*)imageWithImage:(UIImage *)image fitOutsideWidth:(float)width fitOutsideHeight:(float)height {
if (image.size.height >= image.size.width) {
return [UIImage imageWithImage:image convertToHeight:height];
} else {
return [UIImage imageWithImage:image convertToWidth:width];
}
}
+ (UIImage*)imageWithImage:(UIImage *)image cropToWidth:(float)width cropToHeight:(float)height {
CGSize size = [image size];
CGRect rect = CGRectMake(((size.width-width) / 2.0f), ((size.height-height) / 2.0f), width, height);
CGImageRef imageRef = CGImageCreateWithImageInRect([image CGImage], rect);
UIImage * img = [UIImage imageWithCGImage:imageRef];
CGImageRelease(imageRef);
return img;
}
+(UIImage *) placeholderImageWithColor:(UIColor *)color size:(CGSize)size {
CGRect rect = (CGRect){
.origin = CGPointZero,
.size = size
};
UIGraphicsBeginImageContextWithOptions(rect.size, false, 0.0f);
[color setFill];
UIRectFill(rect);
UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return [[self alloc] initWithCGImage:[image CGImage]];
}
@end
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