Text disappears in subclass of NSTextFieldCell

I've spent many hours trying to figure this one out with no luck. Someone had a similar problem on the Apple mailing lists a while ago and no one answered. Basically, it comes down to this: I've subclassed NSTextFieldCell and overridden the drawWit开发者_Go百科hFrame: method to create a custom bezel. Then I call drawInteriorWithFrame: at the end of the method to draw the text. Everything works perfectly except for the fact that sometimes the text disappears. Everything else is drawn, except for the text. I think it might have something to do with the field editor, but I really don't know. Has anyone run into this problem before?

I apologize that this question wasn't better, but I feel others might run into this mysterious drawing problem someday and I have found a solution. The key to subclassing NSTextFieldCell is that when you override drawWithFrame:, you want to call [super drawWithFrame:] or else you might get these rendering problems. You can set the backgroundColor of the cell to whatever you want and use setClip to get the desired look, but you don't want to do all of the drawing yourself. At least this worked for me.