StackOverflow2013

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PO
primarykey
Id
7034568
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0
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0
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CreationDate
2011-08-12T00:46:18.060
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0
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2011-08-12T00:46:18.060
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0
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495180
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7002874
PostTypeId
2
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2
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0
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text
Body
Ok, I figured it out. Basically, we can override <code>drawRectInText</code> and use our own pattern to color the fill. The advantage of doing this is that we can resize the image into our pattern frame. First we create a CGPattern object and define a callback to draw the pattern. We also pass the size of the label as a parameter in the callback. We then use the pattern that is drawn in the callback and set it as the fill color of the text: <pre><code>- (void)drawTextInRect:(CGRect)rect { //set gradient as a pattern fill CGRect info[1] = {rect}; static const CGPatternCallbacks callbacks = {0, &drawImagePattern, NULL}; CGAffineTransform transform = CGAffineTransformMakeScale(1.0, -1.0); CGPatternRef pattern = CGPatternCreate((void *) info, rect, transform, 10.0, rect.size.height, kCGPatternTilingConstantSpacing, true, &callbacks); CGColorSpaceRef patternSpace = CGColorSpaceCreatePattern(NULL); CGFloat alpha = 1.0; CGColorRef patternColorRef = CGColorCreateWithPattern(patternSpace, pattern, &alpha); CGColorSpaceRelease(patternSpace); CGPatternRelease(pattern); self.textColor = [UIColor colorWithCGColor:patternColorRef]; self.shadowOffset = CGSizeZero; [super drawTextInRect:rect]; } </code></pre> The callback draws the image into the context. The image is resized as per the frame size that is passed into the callback. <pre><code>void drawImagePattern(void *info, CGContextRef context) { UIImage *image = [UIImage imageNamed:@"FontGradientPink.png"]; CGImageRef imageRef = [image CGImage]; CGRect *rect = info; CGContextDrawImage(context, rect[0], imageRef); } </code></pre>
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1. This table or related slice is empty.
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1. POCreating a gradient fill for text using [UIColor colorWithPatternImage:]
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1. PTAnswer
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1. This table or related slice is empty.
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1. USwindson
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1. POCreating a gradient fill for text using [UIColor colorWithPatternImage:]
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1. VO
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