kubuntu desktop inconsistency and integration issues: scrollbars. gtk3 button placement also not integrated

[Jonathan Joseph Chiarella]

Kubuntu desktop inconsistency and integration issues: scrollbar

KDE Plasma does not use overlay scrollbars, but rather solid scrollbars. GTK3's default is to set all gtk3 main app windows and gtk3 dialog windows to use overlay scrollbars. Yet Gtk2 and Qt4 and Qt5 apps are otherwise fully integrated. Much like xubuntu, it would be sensible to disable gtk3 overlay scrollbars in the global settings.

KDE Plasma is also unable to integrate gtk3 apps in terms of button placement.

The Qt/KDE order is CONFIRM in center, with CANCEL on the right. GTK2 apps obey this and adapt for the environment, but gtk3 apps do not obey this.

The latter issue is possibly a deeper issue with GTK3 and/or Q5 and/or kde plasma. The former issue is an environment setting (scriptable?).

The various Ubuntu flavours are great for being the best showcases of mate/xfce/kde and gnome is getting there. While application choices and selective patching of ui in some apps are not universal, the environments themselves and integration is great. Just reporting this to see this get to that 100% mark in quality.

Gtk3 csd apps (see menulibre as one that is not Unity-ified) also lack shadows and corners are off, but better than the boxed bizarreness of simple upstream distros like Arch.

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: kubuntu-settings-desktop 1:15.10ubuntu1
ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
Uname: Linux 4.2.0-16-generic x86_64
ApportVersion: 2.19.1-0ubuntu3
Architecture: amd64
CasperVersion: 1.365
CurrentDesktop: KDE
Date: Mon Nov 9 15:32:58 2015
LiveMediaBuild: Kubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
PackageArchitecture: all
SourcePackage: kubuntu-settings
UpgradeStatus: No upgrade log present (probably fresh install)

[Flames_in_Paradise (ellisistfroh-deactivatedaccount)]

This got partially fixed within Plasma 5.6

Breeze GTK

    Gtk3: Fix wrong filename of scrollbar. Commit. (Code review # 127323. Code review # 126970. Fixes bug #356395)
    Do not install development helper files via cmake. Commit.

see: https://www.kde.org/announcements/plasma-5.5.5-5.6.0-changelog.php

[Flames_in_Paradise (ellisistfroh-deactivatedaccount)]

https://bugs.kde.org/show_bug.cgi?id=356395 (Missing asset in gtk3 theme)

[Flames_in_Paradise (ellisistfroh-deactivatedaccount)]

Other fixes found in Plasma 5.9.5

KDE GTK Config

    Let KDE*CompilerSettings change the policies in the project. Commit.
    Implement changing cursor theme for GTK applications. Commit.

see: https://www.kde.org/announcements/plasma-5.5.5-5.5.95-changelog.php

[Torsten Römer (dode)]

I hope it is okay that I add some issues here that I think are related - if not, please let me know and I'll create a separate bug.

There are some other L&F inconsistencies for me since upgrading from 15.10 to 16.04 Beta2:

- KDE4 applications like Amarok now use some other style
- Eclipse with GTK2 and Thunderbird now uses plus signs for tree node handles instead of rectangles
- Eclipse with GTK3 has a dotted line at the lower and right window edges

All of them looked consistent in 15.10 (besides Eclipse with GTK3 which looked kinda broken but looks much better now).

Please see attached screenshot incl. one of Dolphin which looks fine of course (tree nodes, scrollbar).

[Torsten Römer (dode)]

Just want to mention that after a recent update the L&F of KDE4 applications like Amarok is consistent again.

[Chris Guiver (guiverc)]

Thank you for reporting this bug to Ubuntu.

Ubuntu 21.10 (impish) reached end-of-life on July 14, 2022.
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Ubuntu 15.04 (vivid) reached end-of-life on February 4, 2016.

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We appreciate that this bug may be old and you might not be interested in discussing it any more. But if you are then please upgrade to the latest Ubuntu version and re-test. If you then find the bug is still present in the newer Ubuntu version, please add a comment here telling us which new version it is in.

[Paul White (paulw2u)]

Bug report did not expire due to bug-watch
No response to comment #7
Last comment re issue was over seven years ago
So closing as 'Invalid' although issue may well have been fixed