IPhone-common-codes-ccteam source code ccuiimage. m

////  CCUIImage.m//  CCFC////  Created by xichen on 11-12-24.//  Copyright 2011 ccteam. All rights reserved.//@implementation UIImage(cc)// returns the scaled image- (UIImage *)scale:(float)scaleSize{                UIGraphicsBeginImageContext(                        CGSizeMake(self.size.width * scaleSize, self.size.height * scaleSize));        [self drawInRect:CGRectMake(0, 0, self.size.width * scaleSize, self.size.height * scaleSize)];        UIImage *scaledImage = UIGraphicsGetImageFromCurrentImageContext();        UIGraphicsEndImageContext();                                                                        return scaledImage;}// resize the img to indicated newSize- (UIImage *)resizeImage:(CGSize)newSize{        UIGraphicsBeginImageContext(CGSizeMake(newSize.width, newSize.height));        [self drawInRect:CGRectMake(0, 0, newSize.width, newSize.height)];        UIImage *resizeImage = UIGraphicsGetImageFromCurrentImageContext();        UIGraphicsEndImageContext();        return resizeImage;        }// save PNG file to path- (BOOL)savePNGToPath:(NSString *)fileFullPath{        return [UIImagePNGRepresentation(self) writeToFile:fileFullPath atomically:YES];}// save the img to photos album- (void)saveImgToPhotosAlbum{        UIImageWriteToSavedPhotosAlbum(self, nil, nil, nil);}// get part of the image- (UIImage *)getPartOfImage:(CGRect)partRect{        CGImageRef imageRef = self.CGImage;        CGImageRef imagePartRef = CGImageCreateWithImageInRect(imageRef, partRect);        return [UIImage imageWithCGImage:imagePartRef];}// returns UIImage * from text+ (UIImage *)imageFromText:(NSString *)text font:(UIFont *)font{                    CGSize size  = [text sizeWithFont:font];             UIGraphicsBeginImageContext(size);                  CGContextRef ctx = UIGraphicsGetCurrentContext();               [text drawAtPoint:CGPointMake(0, 0) withFont:font];              UIImage *image = UIGraphicsGetImageFromCurrentImageContext();                  UIGraphicsEndImageContext();         CGContextRelease(ctx);                return image;  } #if CC_ENABLE_PRIVATE_API && CC_COMPILE_PRIVATE_CLASS+ (UIImage *)getFullScreenImg{        CGImageRef screenImg = UIGetScreenImage();        return [UIImage imageWithCGImage:screenImg];}#endif@end

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Googlecode link: http://code.google.com/p/iphone-common-codes-ccteam/source/browse/trunk/CCFC/files/CCUIImage.m
GitHub address:

Https://github.com/cxsjabc/iphone-common-codes-ccteam/tree/master/CCFC/files/CCUIImage.m