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Q: 

Why is highlight:withFrame:inView: in an NSTextAttachmentCell subclass never called?

Hi,

I am subclassing NSTextAttachmentCell and it works very good so far. The problem is to highlight the cell in a different color when the cell is selected or highlighted.

The documentation of NSTextAttachmentCell points to the method highlight:withFrame:inView:. But this method is never called. Any idea?

As a workaround I'm overriding trackMouse:inRect:ofView:atCharacterIndex:untilMouseUp: and setting the highlighted flag myself. However, I don't think that this is the solution.

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