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NSCell drawing

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NSCell drawing

Subject: NSCell drawing
From: Michael Watson <email@hidden>
Date: Sun, 11 Feb 2007 20:13:57 -0500

When overriding NSCell's -drawWithFrame:inView: and - drawInteriorWithFrame:inView: methods to perform custom drawing in a control, is it necessary to lock focus on the inView: parameter before drawing? Some exploration with breakpoints seems to suggest that focus is locked onto the context of the control before these methods, therefore it wouldn't be necessary, but I'm not quite sure I'm correct.

Currently, I lock and unlock around drawing calls inside these two methods. Is it safe to remove the lock/unlock pairs? (Removing them doesn't seem to affect the drawing itself, and if I can save a few messages, I'd like to.)


--
m-s
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