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badeen/gist:4157621

Created November 27, 2012 22:31
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gistfile1.m
- (void)drawLinesInRect:(CGRect)rect forFont:(UIFont *)font
{
CGFloat maxLineHeight = 30.0f;
CGFloat fontLineHeight = roundf(font.lineHeight);
CGFloat fontBaselineAdjustment = roundf(-font.descender);
CGFloat startY = fmodf(yOffset, fontLineHeight);
CGFloat totalDrawnLines = (int)(floorf(CGRectGetHeight(rect) / fontLineHeight));
for (NSUInteger drawnLine = 0; drawnLine < totalDrawnLines; drawnLine++) {
CGFloat lineY = startY + (drawnLine + 1) * fontLineHeight - fontBaselineAdjustment;
CGRect lineRect = CGRectMake(0.0f,
roundf(lineY),
CGRectGetWidth(rect),
-1.0f);
CGContextFillRect(UIGraphicsGetCurrentContext(), lineRect);
}
}
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