- (UIImage *)image:(UIImage *)image WithTint:(UIColor *)tintColor
{
// Begin drawing
CGRect aRect = CGRectMake(0.f, 0.f, image.size.width, image.size.height);
CGImageRef alphaMask;
//
// Compute mask flipping image
//
{
UIGraphicsBeginImageContext(aRect.size);
CGContextRef c = UIGraphicsGetCurrentContext();
// draw image
CGContextTranslateCTM(c, 0, aRect.size.height);
CGContextScaleCTM(c, 1.0, -1.0);
[image drawInRect: aRect];
alphaMask = CGBitmapContextCreateImage(c);
UIGraphicsEndImageContext();
}
//
UIGraphicsBeginImageContext(aRect.size);
// Get the graphic context
CGContextRef c = UIGraphicsGetCurrentContext();
// Draw the image
[image drawInRect:aRect];
// Mask
CGContextClipToMask(c, aRect, alphaMask);
// Set the fill color space
CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
CGContextSetFillColorSpace(c, colorSpace);
// Set the fill color
CGContextSetFillColorWithColor(c, tintColor.CGColor);
UIRectFillUsingBlendMode(aRect, kCGBlendModeNormal);
UIImage *img = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
// Release memory
CGColorSpaceRelease(colorSpace);
CGImageRelease(alphaMask);
return img;
}
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