fix the highDPI issue

Reviewed-on: #27

PKGBUILD

@@ -1,7 +1,7 @@
 # Maintainer: TROM <contact@tromsite.com>
 pkgname=tromjaro-fixes
-pkgver=1.6
+pkgver=2
-pkgrel=1
+pkgrel=3.3
 pkgdesc="Various fixes for TROMjaro OS"
 arch=(any)
 url=""
@@ -10,9 +10,11 @@ depends=('xfce4-appfinder'
          'xdotool'
          'rsync'
          'inotify-tools'
-         'qt5-styleplugins'
+         'qt5gtk2'
-         'qt6gtk2'
+         'qt6gtk2-git'
-         'qqc2-desktop-style')
+         'qqc2-desktop-style5'
+         'yad')
+conflicts=('qt5-styleplugins')
 provides=('tromjaro-fixes')
 backup=()
 options=(!strip)

bin/periodic/fix-flatpaks-theming

@@ -1,14 +0,0 @@
-#!/bin/bash
-shared_themes_dir=/usr/share/themes/
-home_local_themes_dir="$HOME/.local/share/themes/"
-source_theme_dirs=("$shared_themes_dir" "$home_local_themes_dir")
-target_themes_dir="$HOME/.themes"
-
-mkdir -p "$target_themes_dir" "$home_local_themes_dir" ||
-	{ echo "failed to make directoris $target_themes_dir & $home_local_themes_dir"; exit 1; }
-
-echo "Set watch for" "${source_theme_dirs[@]}" "directories ..."
-inotifywait -qmr -e 'modify,attrib,move,move_self,create,delete,delete_self,unmount' "${source_theme_dirs[@]}" | while read -r events; do
-	rsync -av --delete --progress "${source_theme_dirs[@]}" "$target_themes_dir"
-	echo "Directory $target_themes_dir is synchronized with" "${source_theme_dirs[@]}"
-done

bin/periodic/fix-theming

@@ -1,38 +1,229 @@
 #!/bin/bash
+# shellcheck disable=SC2016
+
+# This script will sync your XFCE theme & font to work systemwide and in
+# a consistent manner accross different apps. It also improves
+# the highDPI scaling to give you a better experience.
+
+# Exit out if the same script is already running in the background
+pidof -sq -o %PPID -x "$(basename "$0")" && exit
+
+# Set the directory/file paths
+declare -r flatpak_themes_dir="$HOME/.themes"
+declare -r config_dir="${XDG_CONFIG_HOME:-$HOME/.config}"
+declare -r profile="$HOME/.profile"
+
+# Create directories if they don't exist
+mkdir -p "$flatpak_themes_dir" "$config_dir" ||
+	{ echo "failed to make directories $flatpak_themes_dir & $config_dir"; exit 1; }
+
+# Enable option for syncing the current theme with XFWM theme if not already enabled
+[ "$(xfconf-query -c xsettings -p /Xfce/SyncThemes)" != 'true' ] &&
+	xfconf-query -c xsettings -p /Xfce/SyncThemes -n -t bool -s true
+
+# Make sure ~/.profile is sourced inside ~/.bash_profile and ~/.zprofile
+source_profile() {
+	for file in "$HOME/.bash_profile" "$HOME/.zprofile"; do
+		# Continue looping if it is already sourced
+		grep -Exq '\s*(.*&& )?\. "?\$HOME"?/\.profile"?\s*' "$file" ||
+			grep -Exq "\s*(.*&& )?\. ~/\.profile\s*" "$file" && continue
+		# If not then source it
+		if grep -q '\S' "$file"; then
+			# shellcheck disable=SC2015
+			tail -n1 "$file" | grep -qx '\s*' &&
+				local -r begin='' || local -r begin='\n'
+			printf '%b[ -f "$HOME/.profile" ] && . "$HOME/.profile"\n' "$begin" >> "$file"
+		else
+			echo '[ -f "$HOME/.profile" ] && . "$HOME/.profile"' > "$file"
+		fi
+	done
+}
+source_profile
+
+xdg_directory_lookup() {
+	# Go through each item in $XDG_DATA_DIRS and find the subdirectory $1
+	while read -r dir; do
+		local subdir="${dir%/}/$1"
+		if [ -d "$subdir" ]; then
+			echo "$subdir"
+			break
+		fi
+	done < <(printf '%s:%s\n' "$HOME/.local/share" "$XDG_DATA_DIRS" | tr ':' '\n')
+}
+
+theme_exists() {
+	local -r theme_dir=$(xdg_directory_lookup "themes/$1")
+	[ -d "$theme_dir" ]
+}
+
+# Function for setting variables in ~/.profile
+profile_set_variable() {
+	# Return if the variable is already set to the correct value
+	grep -xq "\s*export\s\+$1=$2\s*" "$profile" && return
+
+	# If the variable is set to a different value then remove that line
+	grep -q "^\s*export\s\+$1=" "$profile" && sed -i "/^\s*export\s\+$1=/d" "$profile"
+
+	# Set the variable to the correct value under a comment mentioning this script
+	if grep -xq '\s*#\s*Values set by the fix-theming script\s*' "$profile"; then
+		sed -i "/^\s*#\s*Values set by the fix-theming script\s*$/a export $1=$2" "$profile"
+	elif grep -q '\S' "$profile"; then
+		# shellcheck disable=SC2015
+		tail -n1 "$profile" | grep -qx '\s*' &&
+			local -r begin='' || local -r begin='\n'
+		printf '%b# Values set by the fix-theming script\nexport %s=%s\n' "$begin" "$1" "$2" >> "$profile"
+	else
+		printf '# Values set by the fix-theming script\nexport %s=%s\n' "$1" "$2" > "$profile"
+	fi
+
+	logout_required='true'
+}
+
+set_QT_scaling() {
+	for var in QT_SCALE_FACTOR QT_AUTO_SCREEN_SCALE_FACTOR QT_ENABLE_HIGHDPI_SCALING; do
+		profile_set_variable "$var" "$1"
+	done
+}
+
+set_cursor_size() {
+	xfconf-query -c xsettings -p /Gtk/CursorThemeSize -s "$1"
+}
+
+set_xfwm_theme() {
+	xfconf-query -c xfwm4 -p /general/theme -n -t string -s "$1"
+}
+
+# Use the highDPI variant of the XFWM theme
+use_hdpi_theme_variant() {
+	# shellcheck disable=SC2015
+	[ -n "$1" ] && local -r xfwm_theme="$1" ||
+		local -r xfwm_theme=$(xfconf-query -c xfwm4 -p /general/theme)
+
+	for variant in xhdpi hdpi; do
+		# If this variant of the theme is already enabled then break out of the loop
+		[ "${xfwm_theme##*-}" = "$variant" ] && break
+
+		# Store the name for this variant of the theme in highDPI_theme variable
+		local highDPI_theme=$xfwm_theme-$variant
+
+		if theme_exists "$highDPI_theme"; then
+			set_xfwm_theme "$highDPI_theme"
+			[ -z "$1" ] &&
+				notify-send "XFWM theme changed to $highDPI_theme" "Changed to the highDPI variant of your chosen theme because you've enabled highDPI on your system"
+			break
+		fi
+	done
+	if ! theme_exists "$highDPI_theme"; then
+		[ -n "$1" ] && theme_exists "$1" && set_xfwm_theme "$1"
+	fi
+}
+
+# Use the normal variant of the XFWM theme
+use_normal_theme_variant() {
+	local -r current_xfwm_theme=$(xfconf-query -c xfwm4 -p /general/theme)
+
+	for variant in xhdpi hdpi; do
+		# Continue looping if this (highDPI) variant of the theme is not enabled
+		[ "${current_xfwm_theme##*-}" != "$variant" ] && continue
+
+		# Store the name for the normal variant of this theme in normal_theme variable
+		local normal_theme=${current_xfwm_theme%-"$variant"}
+
+		if theme_exists "$normal_theme"; then
+			set_xfwm_theme "$normal_theme"
+			notify-send "XFWM theme changed to $normal_theme" "Changed to the normal variant of your chosen theme because you've disabled highDPI on your system"
+			break
+		fi
+	done
+}
+
+# Change XFWM theme, QT apps scaling, and mouse cursor size according to
+# the user's current window scaling (highDPI setting)
+hdpi_theme_fix() {
+	local -r current_window_scaling=$(xfconf-query -c xsettings -p /Gdk/WindowScalingFactor)
+	local -r current_cursor_size=$(xfconf-query -c xsettings -p /Gtk/CursorThemeSize)
+
+	unset logout_required
+
+	if [ "$current_window_scaling" -eq '2' ]; then
+		# Increase scaling for QT apps
+		set_QT_scaling 2
+		# Use the highDPI variant of the XFWM theme
+		use_hdpi_theme_variant
+		if [ "$current_cursor_size" -eq 25 ]; then
+			set_cursor_size '45'
+			notify-send 'Mouse cursor size increased to 45' "Changed to a larger mouse cursor because you've enabled highDPI on your system"
+		fi
+	else
+		# Decrease scaling for QT apps
+		set_QT_scaling 1
+		# Use the normal variant of the XFWM theme
+		use_normal_theme_variant
+		if [ "$current_cursor_size" -eq 45 ]; then
+			set_cursor_size '25'
+			notify-send 'Mouse cursor size decreased to 25' "Changed to a smaller mouse cursor because you've disabled highDPI on your system"
+		fi
+	fi
+
+	# Show popup menu about logout if it's required
+	[ "$logout_required" = 'true' ] &&
+		yad  --image "dialog-question" --title "Alert" --buttons-layout=center --text-align=center --button=yad-yes:0 --button=yad-no:1 --text 'Logout is required in order to apply your DPI preferences to QT apps.\nWould you like to logout now?' &&
+		xfce4-session-logout --logout
+}
 
 sync_theme() {
 	# Get the current system theme
-	theme=$(xfconf-query -c xsettings -p /Net/ThemeName)
+	local -r current_theme=$(xfconf-query -c xsettings -p /Net/ThemeName)
-	# Enable syncing the current theme with xfwm4 if not already enabled
+	# Get the current window scaling factor (highDPI setting)
-	[ "$(xfconf-query -c xsettings -p /Xfce/SyncThemes)" != 'true' ] && xfconf-query -c xsettings -p /Xfce/SyncThemes -n -t bool -s true
+	local -r current_window_scaling=$(xfconf-query -c xsettings -p /Gdk/WindowScalingFactor)
+
 	# Apply the current theme with gsettings
-	gsettings set org.gnome.desktop.interface gtk-theme "$theme"
+	gsettings set org.gnome.desktop.interface gtk-theme "$current_theme"
 
-	# Apply the current theme for GTK apps in flatpak
+	# Apply the current theme for GTK and Libadwaita apps on flatpak
+	flatpak override --user --env=GTK_THEME="$current_theme"
 
-	# Define the path to the flatpak override directory
+	# Apply the current theme for XFWM unless it's initial_sync on system reboot
-	flatpak_override_dir="$HOME/.local/share/flatpak/overrides"
+	if [ "$1" != 'initial_sync' ]; then
-	# Create the directory if it doesn't exist
+		# Use the highDPI variant of the XFWM theme if the current_window_scaling factor is 2
-	[ -d "$flatpak_override_dir" ] || mkdir -p "$flatpak_override_dir" || { echo 'failed creating directory!'; return 1; }
+		if [ "$current_window_scaling" -eq '2' ]; then
-	# Write the theme configuration to the global override file
+			use_hdpi_theme_variant "$current_theme"
-	echo "[Environment]
+		else
-GTK_THEME=$theme" > "$flatpak_override_dir/global"
+			set_xfwm_theme "$current_theme"
+		fi
+	fi
+
+	# Cleanup flatpak_themes_dir and remove ~/.config/gtk-4.0
+	rm -rf "${flatpak_themes_dir:?}"/{*,.*} "$config_dir/gtk-4.0"
+
+	# Find the directory where the current theme is stored
+	local -r current_theme_dir=$(xdg_directory_lookup "themes/$current_theme")
+
+	if [ -d "$current_theme_dir" ]; then
+		# Copy/sync current_theme_dir to flatpak_themes_dir
+		rsync -av --delete --progress "$current_theme_dir" "$flatpak_themes_dir"
+		# Create symlink for gtk-4.0 directory
+		ln -s "$current_theme_dir/gtk-4.0" "$config_dir"
+	fi
 }
 
 sync_font() {
 	# Get the current system font
-	font=$(xfconf-query -c xsettings -p /Gtk/FontName)
+	local -r current_font=$(xfconf-query -c xsettings -p /Gtk/FontName)
-	# Apply the same font for the title of xfce windows
+	# Apply the same font for the title of XFCE windows
-	xfconf-query -c xfwm4 -p /general/title_font -n -t string -s "$font"
+	xfconf-query -c xfwm4 -p /general/title_font -n -t string -s "$current_font"
 }
 
-sync_theme
+# Initial synchronization
+sync_theme 'initial_sync'
 sync_font
 
-# Monitor when the user changes their system theme or font in XFCE and sync them as needed
+# Monitor when the user changes their system theme, font or
+# DPI setting in XFCE and sync them as needed
 while read -r line; do
 	case "$line" in
 		'set: /Net/ThemeName') sync_theme ;;
+		'set: /Gdk/WindowScalingFactor') hdpi_theme_fix ;;
 		'set: /Gtk/FontName') sync_font ;;
 	esac
 done < <(xfconf-query -c xsettings -m)

flatpak-overrides/global

@@ -1,5 +1,2 @@
 [Context]
-filesystems=~/.config/gtk-4.0;~/.themes;~/.icons;xdg-config/gtk-4.0;xdg-config/Kvantum:ro;
+filesystems=~/.config/gtk-4.0;~/.themes;~/.icons;xdg-config/gtk-4.0;
-
-[Environment]
-QT_STYLE_OVERRIDE=kvantum

systemd/services/fix-flatpaks-theming.service

@@ -1,15 +0,0 @@
-# This service unit is for fix-flatpaks-theming script
-#
-
-[Unit]
-Description=Fix flatpak theming script
-StartLimitIntervalSec=0
-
-[Service]
-Type=simple
-Restart=always
-RestartSec=1
-ExecStart=/usr/bin/fix-flatpaks-theming
-
-[Install]
-WantedBy=default.target

tromjaro-fixes.sh

@@ -1,6 +1,5 @@
 # Sync the QT with GTK
-export QT_QPA_PLATFORMTHEME="gtk2"
+export QT_QPA_PLATFORMTHEME="qt6gtk2"
-export QT_QUICK_CONTROLS_STYLE="gtk2"
 export QT_AUTO_SCREEN_SCALE_FACTOR=1
 
 # Show color output in less