On Tue, Apr 6, 2010 at 2:58 PM, Jens Alfke <j...@mooseyard.com> wrote:
> > On Apr 6, 2010, at 1:17 PM, Chris Tracewell wrote: > > I am trying to get NSImageView to alias dropped images, but it refuses. >> > > Nitpick: you mean "antialias". Aliasing is what creates the jaggies, > antialiasing smooths them away. > > > Just spent an hour looking and trying several variations to no avail. >> Here's what I have done in a subclass of NSImageView. >> > > I remember having to deal with this too, years ago. It's too bad AppKit > hasn't added support for this yet :( > > The problem is that NSImageView internally keeps a scaled copy of the > image. So the actual scaling that creates the aliasing isn't done in the > drawRect: method at all. > This was once true, but is out of date. I'd like to see a test app. For example, how do you know you aren't getting antialiasing? It may be that you just don't like the output. :-) It would also be good to know what OS you are working on. -Ken > I can't remember now how I solved this. I may hve re-implemented -drawRect: > completely, i.e. added the code to draw [self image] into [self bounds] and > not called super. Another possibility is to override -setImage: and keep the > original image yourself in a new ivar, scale it down smoothly, and call > [super setImage:] with the smooth-scaled version. > _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
