site_archiver@lists.apple.com Delivered-To: Cocoa-dev@lists.apple.com The layout manager expects to be drawing within a flipped context. Douglas Davidson On Jan 31, 2011, at 2:09 PM, Todd Heberlein wrote:
I'm doing a simple experiment using NSTextStorage, NSLayoutManager, NSTextContainer to draw some text (I am basing this on the CircleView example because I want some of that orientation power later).
I have found that when rendering the text using drawGlyphsForGlyphRange:atPoint:, I don't get the text where I expected. It is higher than I expect. Furthermore, when I draw a rectangle around the text (or try to) using the rectangle from usedRectForTextContainer:, the text is outside the rectangle (in short, the rectangle is where I expect it to be, but the text glyphs are not).
Is there a secret incantation that I am missing?
Thanks,
Todd
Basic code snippet:
point = NSMakePoint(1.0, 1.0); glyphRange = [layoutManager glyphRangeForTextContainer:textContainer]; usedRect = [layoutManager usedRectForTextContainer:textContainer]; usedRect.origin = point;
[layoutManager drawGlyphsForGlyphRange:glyphRange atPoint:point]; [[NSBezierPath bezierPathWithRect: rect] stroke]; _______________________________________________
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