wantsDefaultClipping set to NO
wantsDefaultClipping set to NO
- Subject: wantsDefaultClipping set to NO
- From: Leonardo <email@hidden>
- Date: Thu, 05 Dec 2013 22:03:44 +0100
- Thread-topic: wantsDefaultClipping set to NO
I have to draw a NSShadow out of my NSViews' bounds.
So I overrided the wantsDefaultClipping methond returning NO.
That works, but not yet so well as I epxected.
For example, when I move the view and setNeedsDisplay:YES, the area outside
the view get not refreshed. So I subclassed setNeedsDisplay enlarging the
area to be refreshed.
- (void)setNeedsDisplay:(BOOL)flag
{
[self.superview setNeedsDisplayInRect:NSInsetRect(self.frame,
-mInsetForShadow, -mInsetForShadow)];
}
Is it correct? As I have read on the docs, it's not recommended to draw
outside the bounds. So, I ask:
A) What's the purpose of the wantsDefaultClipping method?
B) Should I draw the shadow using a brand new NSView?
C) Or should I simply enlarge the view to draw the shadow? If so, I have to
change the origin and size of the view. Therefore, how can I adjust the
origin and size that the user enters on UI with the bound values I use in
the setFrameOrigin and setFrameSize ?
Regards
-- Leonardo
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