On 19.10.2009, at 23:58, Ben Haller wrote:
On 19-Oct-09, at 5:27 PM, Dave Keck wrote:
Would NSView's -getRectsBeingDrawn:count: help?
Well, I'm already using it in my own code where appropriate. (Or
actually I'm using -needsToDrawRect:). But the problem is that a
whole bunch of NSTableView cells are getting drawn that never got
invalidated.
That's like saying: "I'm using the setter, why would I need to use
the getter?"
The dirtyRect parameter passed to drawRect: is the union of all
redraw rectangles. So, it's the smallest rect that encloses all the
dirty rects. drawRect: does not get called for each redraw rect. If
you want the individual sub-rects, use getRectsBeingDrawn:count: and
loop over all those rects and draw the individual parts.
Cheers,
-- Uli Kusterer
"The witnesses of TeachText are everywhere..."
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