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Re: How to draw a horizontal line in a NSTextView?

What I would try first is using a custom attachment. You can make an NSTextAttachmentCell subclass that will draw the line. To get the "all the way across" behavior you would probably want to override these NSTextAttachmentCell methods:

- (NSRect)cellFrameForTextContainer:(NSTextContainer *)textContainer proposedLineFragment:(NSRect)lineFrag glyphPosition:(NSPoint)position characterIndex:(unsigned)charIndex;

- (void)drawWithFrame:(NSRect)cellFrame inView:(NSView *)controlView characterIndex:(unsigned)charIndex layoutManager:(NSLayoutManager *)layoutManager;

The first would return a rect that had the right width given the width of the textContainer (or its view). The second would simply draw the line.

Mike Ferris
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References: 
 >How to draw a horizontal line in a NSTextView? (From: Arthur Clemens <email@hidden>)



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