Re: NSCell drawWithFrame inView:: is off by 1 sometimes in an NSTableView? [solved]
Re: NSCell drawWithFrame inView:: is off by 1 sometimes in an NSTableView? [solved]
- Subject: Re: NSCell drawWithFrame inView:: is off by 1 sometimes in an NSTableView? [solved]
- From: Dave Camp <email@hidden>
- Date: Thu, 27 Jan 2005 16:04:21 -0800
I started noticing other odd table drawing artifacts, even when running
the nib in IB. I deleted the table view and recreated it and all is
well. I guess the nib file was corrupted. Weird.
Dave
On Jan 27, 2005, at 3:03 PM, Dave Camp wrote:
I've got a simple subclass of NSCell I'm putting in an NSTableColumn.
The only method implemented looks like:
- (void)drawInteriorWithFrame:(NSRect)cellFrame
inView:(NSView*)controlView
{
NSLog(@"%@", NSStringFromRect(cellFrame));
}
The problem is that when it's called to draw on mouse down and mouse
up, cellFrame.origin.x is off by one from when I'm called to draw for
other reasons. In working code, the image I'm drawing offsets by one
pixel to the right on mouse down and mouse up, but draws normally in
other cases. Log output looks like:
{{749, 235}, {18, 16}} - Normal draw
{{750, 235}, {18, 16}} - Mouse down. Note that the X is off by one
{{750, 235}, {18, 16}} - Mouse up. Still off by one
{{750, 235}, {18, 16}} - Mouse down
{{750, 235}, {18, 16}} - Mouse up
{{749, 235}, {18, 16}} - Resize window or deselect, or any other
non-mouse draw response
I've also tried implementing drawWithFrame:inView: but it has the same
problem.
I thought this might be some sort of default button offsetting on
mouse down, but if that was the case the Y should change on mouse down
and the offsets should be removed on mouse up. I'm not seeing that.
Anyone know what's going on here?
Thanks,
Dave
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