--- a/project_files/HedgewarsMobile/Classes/otherSrc/UIImageExtra.m Wed Jun 23 21:39:14 2010 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,184 +0,0 @@
-//
-// UIImageExtra.m
-// HedgewarsMobile
-//
-// Created by Vittorio on 08/04/10.
-// Copyright 2010 __MyCompanyName__. All rights reserved.
-//
-
-#import "UIImageExtra.h"
-
-
-@implementation UIImage (extra)
-
--(UIImage *)scaleToSize:(CGSize) size {
- // Create a bitmap graphics context
- // This will also set it as the current context
- UIGraphicsBeginImageContext(size);
-
- // Draw the scaled image in the current context
- [self drawInRect:CGRectMake(0, 0, size.width, size.height)];
-
- // Create a new image from current context
- UIImage* scaledImage = UIGraphicsGetImageFromCurrentImageContext();
-
- // Pop the current context from the stack
- UIGraphicsEndImageContext();
-
- // Return our new scaled image (autoreleased)
- return scaledImage;
-}
-
--(UIImage *)mergeWith:(UIImage *)secondImage atPoint:(CGPoint) secondImagePoint {
- // create a contex of size of the background image
- return [self mergeWith:secondImage atPoint:secondImagePoint atSize:self.size];
-}
-
--(UIImage *)mergeWith:(UIImage *)secondImage atPoint:(CGPoint) secondImagePoint atSize:(CGSize) resultingSize {
- UIGraphicsBeginImageContext(resultingSize);
-
- // drav the background image
- [self drawAtPoint:CGPointMake(0,0)];
-
- // draw the image on top of the first image
- [secondImage drawAtPoint:secondImagePoint];
-
- // create an image from the current contex (not thread safe)
- UIImage *resultImage = UIGraphicsGetImageFromCurrentImageContext();
-
- // free drawing contex
- UIGraphicsEndImageContext();
-
- // return the resulting autoreleased image
- return resultImage;
-}
-
--(id) initWithContentsOfFile:(NSString *)path andCutAt:(CGRect) rect {
- // load image from path
- UIImage *image = [[UIImage alloc] initWithContentsOfFile: path];
-
- if (nil != image) {
- // get its CGImage representation with a give size
- CGImageRef cgImgage = CGImageCreateWithImageInRect([image CGImage], rect);
-
- // clean memory
- [image release];
-
- // create a UIImage from the CGImage (memory must be allocated already)
- UIImage *sprite = [self initWithCGImage:cgImgage];
-
- // clean memory
- CGImageRelease(cgImgage);
-
- // return resulting image
- return sprite;
- } else {
- DLog(@"error - image == nil");
- return nil;
- }
-}
-
--(UIImage *)convertToGrayScale {
- // Create image rectangle with current image width/height
- CGRect imageRect = CGRectMake(0, 0, self.size.width, self.size.height);
-
- // Grayscale color space
- CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceGray();
-
- // Create bitmap content with current image size and grayscale colorspace
- CGContextRef context = CGBitmapContextCreate(nil, self.size.width, self.size.height, 8, 0, colorSpace, kCGImageAlphaNone);
-
- // Draw image into current context, with specified rectangle
- // using previously defined context (with grayscale colorspace)
- CGContextDrawImage(context, imageRect, [self CGImage]);
-
- // Create bitmap image info from pixel data in current context
- CGImageRef imageRef = CGBitmapContextCreateImage(context);
-
- // Create a new UIImage object
- UIImage *newImage = [UIImage imageWithCGImage:imageRef];
-
- // Release colorspace, context and bitmap information
- CGColorSpaceRelease(colorSpace);
- CGContextRelease(context);
- CFRelease(imageRef);
-
- // Return the new grayscale image
- return newImage;
-}
-
-// by http://iphonedevelopertips.com/cocoa/how-to-mask-an-image.html turned into a category by koda
--(UIImage*) maskImageWith:(UIImage *)maskImage {
- CGImageRef maskRef = maskImage.CGImage;
-
- CGImageRef mask = CGImageMaskCreate(CGImageGetWidth(maskRef),
- CGImageGetHeight(maskRef),
- CGImageGetBitsPerComponent(maskRef),
- CGImageGetBitsPerPixel(maskRef),
- CGImageGetBytesPerRow(maskRef),
- CGImageGetDataProvider(maskRef), NULL, false);
-
- CGImageRef masked = CGImageCreateWithMask([self CGImage], mask);
-
- CGImageRelease(mask);
-
- UIImage* retImage = [UIImage imageWithCGImage:masked];
-
- CGImageRelease(masked);
-
- return retImage;
-}
-
-// by http://blog.sallarp.com/iphone-uiimage-round-corners/ turned into a category by koda
-void addRoundedRectToPath(CGContextRef context, CGRect rect, float ovalWidth, float ovalHeight)
-{
- float fw, fh;
- if (ovalWidth == 0 || ovalHeight == 0) {
- CGContextAddRect(context, rect);
- return;
- }
- CGContextSaveGState(context);
- CGContextTranslateCTM (context, CGRectGetMinX(rect), CGRectGetMinY(rect));
- CGContextScaleCTM (context, ovalWidth, ovalHeight);
- fw = CGRectGetWidth (rect) / ovalWidth;
- fh = CGRectGetHeight (rect) / ovalHeight;
- CGContextMoveToPoint(context, fw, fh/2);
- CGContextAddArcToPoint(context, fw, fh, fw/2, fh, 1);
- CGContextAddArcToPoint(context, 0, fh, 0, fh/2, 1);
- CGContextAddArcToPoint(context, 0, 0, fw/2, 0, 1);
- CGContextAddArcToPoint(context, fw, 0, fw, fh/2, 1);
- CGContextClosePath(context);
- CGContextRestoreGState(context);
-}
-
--(UIImage *)makeRoundCornersOfSize:(CGSize) sizewh {
- UIImage * newImage = nil;
-
- NSInteger cornerWidth = sizewh.width;
- NSInteger cornerHeight = sizewh.height;
- int w = self.size.width;
- int h = self.size.height;
-
- CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
- CGContextRef context = CGBitmapContextCreate(NULL, w, h, 8, 4 * w, colorSpace, kCGImageAlphaPremultipliedFirst);
-
- CGContextBeginPath(context);
- CGRect rect = CGRectMake(0, 0, w, h);
- addRoundedRectToPath(context, rect, cornerWidth, cornerHeight);
- CGContextClosePath(context);
- CGContextClip(context);
-
- CGContextDrawImage(context, CGRectMake(0, 0, w, h), self.CGImage);
-
- CGImageRef imageMasked = CGBitmapContextCreateImage(context);
- CGContextRelease(context);
- CGColorSpaceRelease(colorSpace);
-
- newImage = [UIImage imageWithCGImage:imageMasked];
- CGImageRelease(imageMasked);
-
- return newImage;
-}
-
-
-@end