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luisdelarosa/gist:82424

Forked from danielpunkass/gist:82016
Created March 20, 2009 16:25
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gistfile1.txt
@implementation NSImage (RSShading)
- (NSImage *) tintedImage
{
NSImage* newImage = [[[NSImage alloc] initWithSize:[self size]] autorelease];
NSRect imageRect = {NSZeroPoint, [self size]};
NSColor *color = [NSColor blackColor];
[newImage lockFocus];
[[color colorWithAlphaComponent: 0.25] set];
[self compositeToPoint:NSZeroPoint operation:NSCompositeCopy];
NSRectFillUsingOperation (imageRect, NSCompositeSourceOver);
[newImage unlockFocus];
return (newImage);
}
@end
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