[Tooltip] Shadow broken on KDE-Plasma

[weisJ]

@GraxCode wrote: Manjaro Linux

@weisJ wrote: @GraxCode This looks like a slightly different problem to me. Rather than what is happening here, there seems to be a problem with the >painting of the tooltip shadow. This may be caused by some weird alpha compatibility. What desktop environment are you >using and does this issue occur every time?

@GraxCode wrote: I am on KDE-Plasma 5.20 (Framework 5.77). This always happens the first time hovering on something after starting the GUI. >After the first hover, it doesn't occur anymore.

Originally posted by @weisJ in https://github.com/weisJ/darklaf/issues/172#issuecomment-789259715

[GraxCode]

Still has those weird lines

[weisJ]

Is this only the first time per tooltip or for the first tooltip all together?

[GraxCode]

Pretty sure it was first time for everything. (Can't test due to: java.lang.NoClassDefFoundError: Unable to load class com.github.weisj.darklaf.ui.text.DarkTextUI due to missing dependency com/github/weisj/swingdsl/laf/VisualPaddingProvider)

[weisJ]

I think the NoClassDefFoundError should be fixed now. That is an artifact because of a separate library I am currently creating.

Pretty sure it was first time for everything.

That is very strange. It might be related to the configuration of the tooltip window. As pretty much the same window is shared for (almost) all tooltips that could explain why it only happens when the first tooltip is displayed.

[GraxCode]

Still throws that error after cleaning, rebuilding multiple times. Do i have to delete cache or something?

[weisJ]

Oh I think this may be related to gradle not supporting transitive dependencies with latest.integration as their version. The problem should go away if you declare com.github.weisj:swing-dsl-laf-support:latest.integration as a dependency manually.

[GraxCode]

Doesn't fix the problem.

[GraxCode]

But I can tell you, instead of the original lines, now a black background is behind the tooltip.

[weisJ]

Interesting. I think I'll have to setup a local KDE-Plasma environment to investigate this issue.

[weisJ]

I was not able to reproduce this issue on my machine. Are you using X-Server or wayland? Also try to to disable opengl rendering in the system settings. As I am running plasma through wsl I can only test it for X-Server with XRender instead of opengl. This gives me the reason to believe it may be related to either one.

[GraxCode]

I am using KWin and X11. Issue is still happening.

[weisJ]

You can disable the shadow by setting UIManager.put("ToolTip.paintShadow", false). Until I can reproduce the issue this is the best I can offer.

[loerting]

This is what tooltips look on Manjaro i3. The shadow is rendered by i3, it doesn't know the real size of the tooltip. Setting ToolTip.paintShadow to false does not change anything.