Differences

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--- sway:dark-mode [2020/10/12 22:12] – admin
+++ sway:dark-mode [2021/01/07 23:54] (current) – admin
@@ Line 3: / Line 3: @@
 Unlike Desktop Environments like Gnome and KDE, Window Managers like
-sway do not come with all the tools you might need or want. It's up to
+**sway** do not come with all the tools you might need or want. It's up to
 the user to perceive a need, do the research and then install,
 configure and use the appropriate tools for the job. Notwithstanding
@@ Line 11: / Line 11: @@
 satisfaction of knowing what's going on.
-In my own history through fvwm, fluxbox, i3wm and now sway I've never
+In my own history through **fvwm**, **fluxbox**, **i3wm** and now **sway** I've never
 really wanted to bother with themes. I just made terminals and emacs
 have a black background and other programs could do what ever they
@@ Line 29: / Line 29: @@
 customising and a script that I use to do the flick.
-All of this is on Fedora-31.
+All of this is on Fedora-31 but should be similar for other Linux distros.
 Apologies if this is all obvious and well documented elsewhere. It was a journey for me and non-trivial.
@@ Line 161: / Line 161: @@
 KDE/Qt5/Plasma/whatcha-ma-call-it
-Here be dragons. I have NO IDEA how to script this. If you know how to
+Thanks to redditor r/progandy for this:
-script a theme change, please let me know!
-===dark-mode===
+''**qt5ct**(1)'' is the key - install it (Fedora) with:
-Here is the result of all this rambling:
 <code>
-#!/usr/bin/env bash
+sudo dnf install qt5ct
+</code>
-# dark-mode [on|off]
+This needs to be in the session environment:
-# sets dark mode on or off
-# best to run as:
+<code>
-# eval $( dark-mode on )
+export QT_QPA_PLATFORMTHEME=qt5ct
+</code>
-# for emacs, these themes can be chosen from the standard ones (in
+After running ''**qt5ct**(1)'' I now have a ''~/.config/qt5ct/qt5ct.conf'' file that contains a line:
-# custom-theme-load-path) or they can be installed in
-# custom-theme-directory (usually ~/.emacs.d)
-# They must have a filename of $THEMENAME-theme.el
-light_emacs_theme="dichromacy-bh"
+<code>
-light_emacs_modeline_theme="smart-mode-line-light"
+style=Adwaita
-#dark_emacs_theme="manoj-dark-bh"
+</code>
-dark_emacs_theme="dichromacy-dark-bh"
-dark_emacs_modeline_theme="smart-mode-line-dark"
-case "$1" in
-    off|stop|reset|end|light)
-        # light mode
-        new_emacs_theme="$light_emacs_theme"
-        prev_emacs_theme="$dark_emacs_theme"
-        new_emacs_modeline_theme="$light_emacs_modeline_theme"
-        prev_emacs_modeline_theme="$dark_emacs_modeline_theme"
-        new_gtk_theme='Adwaita'
+... I can hit that with my script and the qt5 programs automatically change their appearance!
-        new_fg='black'
-        new_bg='white'
-        BRIGHTNESS=100
-        TERM_BACKGROUND=light
-        ;;
-    *)
-        # dark mode
-        new_emacs_theme="$dark_emacs_theme"
-        prev_emacs_theme="$light_emacs_theme"
-        new_emacs_modeline_theme="$dark_emacs_modeline_theme"
-        prev_emacs_modeline_theme="$light_emacs_modeline_theme"
-        new_gtk_theme='Adwaita-dark'
+Oddly, there's a 4s delay after changing the style in the file before the new style takes effect. But that's OK.
-        new_fg='white'
-        new_bg='black'
-        BRIGHTNESS=0
-        TERM_BACKGROUND=dark
-        ;;
-esac
-(
+I also built [[https://gitlab.com/zetaPRIME/qt5ct-refresh|qt5ct-refresh]] but it doesn't seem to speed up the 4s delay - or do anything AFAICT.
-    # look for an emacs running as this user:
-    emacs_pid=$(pgrep -u $USER emacs | head -n 1)
-    [[ "$emacs_pid" ]] &&
-        emacsclient --eval "
-          (progn
-            (disable-theme '$prev_emacs_theme)
-            (disable-theme '$prev_emacs_modeline_theme)
-            (load-theme '$new_emacs_theme)
-            (load-theme '$new_emacs_modeline_theme))"
-    f=~/.gtkrc-2.0
+===dark-mode===
-    [[ -w $f ]] &&
-        sed -i "s/^gtk-theme-name=.*/gtk-theme-name=\"$new_gtk_theme\"/" $f
-    gtkreload # gtk2 only!
-    f=~/.config/gtk-3.0/settings.ini
+Here is the result of all this rambling: https://gitlab.com/wef/dotfiles/-/blob/master/bin/dark-mode
-    [[ -w $f ]] &&
-        sed -i "s/^gtk-theme-name=.*/gtk-theme-name=$new_gtk_theme/" $f
-    # /usr/libexec/gsd-xsettings notifies gtk3 clients - start it in sway
-    # these two appear to be comletely equivalent:
-    dconf write /org/gnome/desktop/interface/gtk-theme "'$new_gtk_theme'"
-    #gsettings set org.gnome.desktop.interface gtk-theme $new_gtk_theme
-    [[ "$KITTY_WINDOW_ID" ]] &&
-        kitty @ set_colors --all foreground=$new_fg background=$new_bg
-    brightness $BRIGHTNESS
-) >/dev/null
-echo "TERM_BACKGROUND=$TERM_BACKGROUND; setup_prompt"
-</code>