Perfomance issue on undock tab

[DimaKoltun]

Hi!
QtADS has perfomance issue on undocking dock widget from tab bar with several tabs with flags:

ads::CDockManager::setConfigFlag(ads::CDockManager::OpaqueUndocking, true);

On the video we can see that sometimes undocked widget can finish dragging while mouse pressed.

ads_perf.mp4

Why it's happening and what i can do with this?

[githubuser0xFFFF]

I have no idea.

[githubuser0xFFFF]

Switch to non opaque docking to avoid this issue

[delins]

@DimaKoltun Could you check if the issue is still there with the latest commit? #401 fixed a similar issue

[githubuser0xFFFF]

@delins The fix #401 was for Linux only and I also see this issue on Windows

[OpenJeDi]

I added a remark about MacOS on the original issue #350

The issue on MacOS seems to be different than this particular example: in my case the docking overlay gets "stuck" just like in the original issue. In this example, the dragging just seems to stop and you are able to resume dragging?

[githubuser0xFFFF]

It is exactly like in the video above.

[enjoysmath]

Run your code in Release mode without debugging (the non-filled in play button in Visual Studio), and docking / undocking is about 10x faster. :)

[githubuser0xFFFF]

Closed because OpaqueUndocking is no longer supported since release 4.0.2