project_files/HedgewarsMobile/Classes/UIImageExtra.m
changeset 3697 d5b30d6373fc
parent 3621 a8ddf681ba7d
child 3778 2e61bb50cc57
--- a/project_files/HedgewarsMobile/Classes/UIImageExtra.m	Sat Jul 31 10:52:43 2010 +0200
+++ b/project_files/HedgewarsMobile/Classes/UIImageExtra.m	Sat Jul 31 11:24:53 2010 +0200
@@ -10,22 +10,22 @@
 
 
 @implementation UIImage (extra)
- 
+
 -(UIImage *)scaleToSize:(CGSize) size {
     DLog(@"warning - this is a very expensive operation, you should avoid using it");
-    
+
     // 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;
 }
@@ -38,19 +38,19 @@
 -(UIImage *)mergeWith:(UIImage *)secondImage atPoint:(CGPoint) secondImagePoint atSize:(CGSize) resultingSize {
     // Create a bitmap graphics context; this will also set it as the current context
     UIGraphicsBeginImageContext(resultingSize);
-    
+
     // draw the background image in the current context
     [self drawAtPoint:CGPointMake(0,0)];
-    
+
     // draw the image on top of the first image (because the context is the same)
     [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;
 }
@@ -58,17 +58,17 @@
 -(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 cgImage = CGImageCreateWithImageInRect([image CGImage], rect);
-    
+
         // clean memory
         [image release];
-    
+
         // create a UIImage from the CGImage (memory must be allocated already)
         UIImage *sprite = [self initWithCGImage:cgImage];
-    
+
         // clean memory
         CGImageRelease(cgImage);
 
@@ -82,38 +82,38 @@
 
 -(UIImage *)cutAt:(CGRect) rect {
     CGImageRef cgImage = CGImageCreateWithImageInRect([self CGImage], rect);
-    
+
     UIImage *res = [UIImage imageWithCGImage:cgImage];
     CGImageRelease(cgImage);
-    
+
     return res;
 }
 
 -(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  
+
+    // 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;
 }
@@ -122,7 +122,7 @@
 -(UIImage*) maskImageWith:(UIImage *)maskImage {
     // prepare the reference image
     CGImageRef maskRef = [maskImage CGImage];
-    
+
     // create the mask using parameters of the mask reference
     CGImageRef mask = CGImageMaskCreate(CGImageGetWidth(maskRef),
                                         CGImageGetHeight(maskRef),
@@ -130,14 +130,14 @@
                                         CGImageGetBitsPerPixel(maskRef),
                                         CGImageGetBytesPerRow(maskRef),
                                         CGImageGetDataProvider(maskRef), NULL, false);
-    
+
     // create an image in the current context
     CGImageRef masked = CGImageCreateWithMask([self CGImage], mask);
     CGImageRelease(mask);
-    
+
     UIImage* retImage = [UIImage imageWithCGImage:masked];
     CGImageRelease(masked);
-    
+
     return retImage;
 }
 
@@ -162,30 +162,30 @@
     CGContextRestoreGState(context);
 }
 
--(UIImage *)makeRoundCornersOfSize:(CGSize) sizewh {    
+-(UIImage *)makeRoundCornersOfSize:(CGSize) sizewh {
     CGFloat cornerWidth = sizewh.width;
     CGFloat cornerHeight = sizewh.height;
     CGFloat w = self.size.width;
     CGFloat 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);
-    
+
     UIImage *newImage = [UIImage imageWithCGImage:imageMasked];
     CGImageRelease(imageMasked);
-        
+
     return newImage;
 }