Revision as of 03:19, 28 July 2016

QGtkStyle has been removed from qt5-base 5.7.0 & 
added to qt5-styleplugins which is an AUR package.
So since Qt 5.7 you need to install qt5-styleplugins
if you are using a GTK+ based DE/WM. If you use both
GTK2 & GTK3 applications you may need to find a
compatible theme.

Introduction

For those of us that use Desktop Environments &/or Window Managers that use GTK+ , this fix is particularly helpful.

For those such as myself that run 1080p or higher screen resolutions on largish monitors it can be quite a strain on the eyes when you can't control the size of the fonts that an application uses.

This fix makes your Qt app's use your GTK+ theme (colours & such) & your chosen font settings.

How do you do it?

1) Install qt5-styleplugins and qt5ct 2) Set environment variable in /etc/environment: QT_QPA_PLATFORMTHEME=qt5ct 3) Restart the system 4) Start qt5ct with sudo rights (very important) and select gtk2

Results

After saving the file & rebooting, I then, with trepidation, opened the Qt 5.7 program called PkgBrowser... It looked just like my other GTK+ app's on my Openbox system (there is no accounting for taste!). I was very happy.

File:PkgBrowser.GTK+.png

375px

Here is a picture of the Qt 5.5 PkgBrowser program open full screen on my 1080p Openbox (GTK2) box. It is using my custom dark theme & my large font settings. My eyes love it.

Links

This ArchWiki page goes into far more detail:

Uniform look for Qt and GTK applications [1]

Support

Following is a link to this page's forum counterpart where you can post any related feedback: [2]

@@ Line 19: / Line 19: @@
 =How do you do it?=
-==For root & all users==
+) Install qt5-styleplugins and qt5ct
+) Set environment variable in /etc/environment: QT_QPA_PLATFORMTHEME=qt5ct
-As root, create '''/etc/profile.d/qt.style.overide.sh'''
+) Restart the system
+) Start qt5ct with sudo rights (very important) and select gtk2
-To do that you will need to start your favourite text editor as ''root'' .
-You can achieve this by using the following command at the terminal '''$''' prompt (swap '''medit''' to the text editor of your choice):
- sudo medit /etc/profile.d/qt.style.overide.sh
-Then copy the following into your text editor's new empty file:
- ## Following was created to make Qt app's use GTK+
- ## font & theme settings:
- export QT_STYLE_OVERRIDE='gtk2'
-'''Save''' the file & '''reboot'''.
-<br clear="all"/>
-==For a user account==
-Enter the following into ~/.xinitrc
- export QT_STYLE_OVERRIDE='gtk2'
 <br clear="all"/>

Difference between revisions of "Set all Qt app's to use GTK+ font & theme settings"