Re: scrolling an NSImageView leaves tracks
Re: scrolling an NSImageView leaves tracks
- Subject: Re: scrolling an NSImageView leaves tracks
- From: Hamish Allan <email@hidden>
- Date: Sun, 10 Apr 2005 03:25:17 +0100
I've seen something similar, not with an NSImageView but with a custom
NSView subclass within an NSScrollView. I fixed the behaviour by
drawing marginally (1 pixel) outside of the NSRect asked of me by
drawRect:. Not sure how you would best achieve this with an
NSImageView... subclassing or posing?
Best wishes,
Hamish
On Sat, 9 Apr 2005 21:53:41 +0200, Geoff Levner <email@hidden>
wrote:
I have an NSImageView in an NSScrollView. I can zoom in and out,
scroll, load new images, and everything is fine.
Except for one thing. Sometimes, when a newly loaded image is initially
framed so that it is clipped by the scroll view, scrolling leaves
tracks (grey vertical or horizontal lines) where previously clipped
portions of the image become visible. Zooming in or out once makes
them go away. Calling the NSClipView's setCopiesOnScroll method with
NO also makes the problem go away, but then, of course, scrolling is
much slower.
Has anybody out there ever encountered this sort of behavior?
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