[Gambas-bugtracker] Bug #3195: Gambas does not detect correct icon theme under lxqt desktop

[<bugtracker@xxxxxxxxxxxxxx>]

http://gambaswiki.org/bugtracker/edit?object=BUG.3195&from=L21haW4-

Tony MOREHEN reported a new bug.

Summary
-------

Gambas does not detect correct icon theme under lxqt desktop

Type             : Bug
Priority         : Medium
Gambas version   : Unknown
Product          : Unknown


Description
-----------

I recently switched to a lxqt desktop theme (cachyos) and noticed that Gambas did not detect the system icon theme.  All icons in the ide and in my programs were from the stock theme no matter what I set the system icon theme.  Setting the ide icon theme to desktop did nothing.  Setting the ide to the specific icon theme got the correct icons but only for the ide.  My program icons were remained the stock icons.

I found the reason for this.  Apologies for stating what you already know, In gb.form/stock.class, SearchTheme looks through the various desktop environment's configuration files for the current icon theme.  Unfortunately, lxqt's configuration is not searched, so the default icon theme is used. Adding the following code should fix this:

    Case "lxqt"

      If Not sTheme Then
        aFind = FindInConfigFile([User.Home &/ ".config/lxqt/lxqt.conf","/usr/share/lxqt/lxqt.conf"], "icon_theme=*")
        If aFind Then sTheme = Trim(aFind[0])
      Endif

      If sTheme Then GetAllThemePath("gnome", $aRoots, sTheme)

      'AddGlobalPath("gnome", "oxygen")
      AddGlobalPath("gnome", "gnome")
      'AddGlobalPath("gnome", "hicolor")


BTW, Oxygen seems to be the preferred icon theme for lxqt on cachyos.  It provides all the icons that lxqt-specific programs specify in their desktopfiles.  My other icon themes do not.  Would it be helpful to uncomment AddGlobalPath("gnome",oxygen) and AddGlobalPath("gnome", "hicolor") in the above code?


System information
------------------

[System]
Gambas=3.22
OperatingSystem=Linux
Distribution=Manjaro Linux 
Kernel=6.18.26-1-MANJARO
Architecture=x86_64
Cores=16
Memory=61165M
Language=en_CA.utf8
Platform=x11
Desktop=XFCE
DesktopResolution=96
DesktopScale=9
WidgetTheme=breeze-dark
Font=Monospace,12
DarkTheme=True
[Programs]
clang=clang version 22.1.3
gcc=gcc (GCC) 15.2.1 20260209
git=git version 2.54.0
msgmerge=msgmerge (GNU gettext-tools) 1.0
[Libraries]
Cairo=libcairo.so.2.11804.4
Curl=libcurl.so.4.8.0
DBus=libdbus-1.so.3.38.3
GDK3=libgdk-3.so.0.2420.32
GStreamer=libgstreamer-1.0.so.0.2802.0
GTK+3=libgtk-3.so.0.2420.32
OpenGL=libGL.so.1.7.0
Poppler=libpoppler.so.159.0.0
QT5=libQt5Core.so.5.15.18
QT6=libQt6Core.so.6.11.0
RSvg=librsvg-2.so.2.62.1
SDL=libSDL2-2.0.so.0.3200.66
SQLite3=libsqlite3.so.3.53.0
[Environment]
DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus
DEBUGINFOD_URLS=https://debuginfod.archlinux.org 
DESKTOP_SESSION=gbde
DISPLAY=:0
EDITOR=/usr/bin/micro
GB_GUI=gb.gtk3
GDMSESSION=gbde
GDM_LANG=en_CA.utf8
GTK2_RC_FILES=<home>/.gtkrc-2.0
GTK3_MODULES=xapp-gtk3-module:xapp-gtk3-module
GTK_MODULES=canberra-gtk-module:canberra-gtk-module
GTK_OVERLAY_SCROLLING=0
GTK_THEME=Breeze-Dark
HOME=<home>
LANG=en_CA.utf8
LANGUAGE=en_CA.utf8
LC_ADDRESS=en_CA.UTF-8
LC_IDENTIFICATION=en_CA.UTF-8
LC_MEASUREMENT=en_CA.UTF-8
LC_MONETARY=en_CA.UTF-8
LC_NAME=en_CA.UTF-8
LC_NUMERIC=en_CA.UTF-8
LC_PAPER=en_CA.UTF-8
LC_TELEPHONE=en_CA.UTF-8
LC_TIME=en_CA.UTF-8
LOGNAME=<user>
MAIL=/var/spool/mail/<user>
MOTD_SHOWN=pam
PATH=<home>/.local/bin:/usr/local/bin:/usr/bin:/bin:/usr/local/sbin:/usr/lib/jvm/default/bin:/usr/bin/site_perl:/usr/bin/vendor_perl:/usr/bin/core_perl
PWD=<home>
QT_AUTO_SCREEN_SCALE_FACTOR=0
QT_LOGGING_RULES=*.debug=false
QT_QPA_PLATFORMTHEME=gtk2
SHELL=/bin/bash
SHLVL=0
TZ=:/etc/localtime
USER=<user>
VISUAL=/usr/bin/gbTE
XAUTHORITY=<home>/.Xauthority
XDG_CONFIG_DIRS=/etc/xdg
XDG_CURRENT_DESKTOP=XFCE
XDG_DATA_DIRS=/usr/local/share:/usr/share
XDG_GREETER_DATA_DIR=/var/lib/lightdm-data/<user>
XDG_MENU_PREFIX=xfce-
XDG_RUNTIME_DIR=/run/user/1000
XDG_SEAT=seat0
XDG_SEAT_PATH=/org/freedesktop/DisplayManager/Seat0
XDG_SESSION_CLASS=user
XDG_SESSION_DESKTOP=gbde
XDG_SESSION_ID=2
XDG_SESSION_PATH=/org/freedesktop/DisplayManager/Session0
XDG_SESSION_TYPE=x11
XDG_VTNR=7



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