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

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

Revision as of 05:19, 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.


PkgBrowser.GTK+.png

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]