On 30 Apr 2013, at 09:38, Robert Vojta <rob...@tapmates.com> wrote: >> I've never seen any evidence that sibling *NSView*s draw in the wrong order >> since 10.5. I believe that 'drawRect:' is correctly called in the >> back-to-front order of the sibling arrangement in the parent view. >> >> However, I *have* seen firsthand, in the last few weeks, that the layers of >> siblings under a layer-backed parent view were composited in a random order. >> In my case, I had two sibling views, and I observed the bottom one >> displaying "on top" unpredictably, about 50% of the time. > Sorry for stepping in, but I have seen this behavior as well in the last week > … I had this in the tree ... > > - NSView > - NSView (layer backed for AVPlayer) > - NSButton > > … and NSButton was invisible - to be more precise, this button wasn't drawn > in correct order, but it did work = I was able to click on it. This > invisibility was random. To fix correct drawing order, I had to set > wantsLayer = YES on the root NSView as well. And then it was fixed and no > more random invisibility.
Layer-backed views always *appear* above non-layer-backed views. Effectively, all non-layer-backed views get rendered into a single layer that makes up the entire window. _______________________________________________ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
