Hi, Thanks for the reply. Yes I admit that question was at best vague. And the last couple of lines of your email says correctly, that I have to float alerts on top of the rest of the window contents. But not just alerts…. Here is the scenario:
I have the window with a lot of UI elements like a outline view which highlights rows when mouse hovering and a custom view which has a lot of small square views as its subviews and each such square has a tooltip. I also have hover buttons on the window. All these views are in tab view’s tabs, I change tabs as I progress further when taking input from the user. Now I have to show not just small alert like views but some elaborate views having a lot of small elements like that are in the window, on top of the window. So first I overlap the window by adding a layer-backed transparent view to self.window.contentView. And then add my top view to this transparent view as its subview. The transparent view is there just to give a drop shadow to the top view. Some times depending on app’s processing I also show another top view (maybe small alert like or maybe a bit more complex) over the current top view. For this I again add a transparent sub view to window’s contentView and add the new top view to this transparent view. So I kind of cascade views. While this approach was working fine. The focus ring belonging to a combo box on the window seeped thru to the last top view. Also the tooltip in small square views on the window are visible even when covered by overlapping views. I hope I have been able to describe the problem better now. I also have a small project uploaded at http://s000.tinyupload.com/?file_id=49187580361848226909 <http://s000.tinyupload.com/?file_id=49187580361848226909> Which shows both the focus ring problem and tooltip problem and I have inserted appropriate comments in the method - (IBAction)buttonToAddViewsClicked:(id)sender in ViewController.m I don’t know If I abandon this approach and use sheets, will I be able to put a sheet over another sheet. OR I just might use separate windows for this, but this overlapping views thing seems much easier if not for these problems. I also read in this article which has comments by ex-apple engineers saying overlapping sibling views (layer-backed or not) are okay since os x 10.5. link: https://stackoverflow.com/questions/10720062/are-layer-backed-nsview-siblings-allowed-to-overlap <https://stackoverflow.com/questions/10720062/are-layer-backed-nsview-siblings-allowed-to-overlap> Wishes, Navneet > On 27-Jun-2017, at 10:56 PM, Quincey Morris > <quinceymor...@rivergatesoftware.com> wrote: > > On Jun 27, 2017, at 06:57 , Navneet Kumar <navnee...@me.com > <mailto:navnee...@me.com>> wrote: >> >> A custom view when overlapped with a transparent view (subview to window’s >> contentView) and a subview on top of transparent view, also shows the custom >> cursor and tooltip assigned to the custom view. Even when the custom view’s >> tracking area is with option NSTrackingActiveInVisibleRect. > > This may be the correct behavior. If the overlapping view *doesn’t* have a > tracking area, there may be nothing to change the cursor back again when it > enters the overlapping view from the custom view. What happens depends on > exactly what how you implement setting the cursor, and the behavior can be > quite subtle and difficult to follow. > >> Sadly I got no responses, not even some clue to guide me in the right >> direction…. > > I don’t think anyone fully understands your scenario. You refer to the > various views so vaguely that I can’t keep track. (You’re having trouble with > a custom view, but your image shows an issue with a combo box. Is that the > custom view or is something else the custom view? What does "--subview—>” > mean? Is it a subview relationship, or does it represent an intermediate > subview in the hierarchy?) > > You would need to lay out the exact hierarchy of your window, with the > geometry of all the views (i.e. how they overlap). That’s not so easy in a > test message. You could try posting a sample project somewhere, and a few > people might be prepared to look at it in details. > > However, based on the image you posted, it kinda looks like your intention is > to “float” some kind of alert over the rest of the window contents. If that’s > what you’re doing, you might have better success if you use a child window > rather than subviews. Or a sheet. > _______________________________________________ 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
