A lightweight LXQt panel widget that toggles touchscreen input on/off and reflects the current state directly in the panel using clear, high‑contrast SVG icons.

This widget is designed for tablet / convertible / drawing setups where accidental touch input needs to be disabled quickly (stylus-only workflows, palm rejection, kiosk modes, etc.).

• Wacom EMR (Electro-Magnetic Resonance)
• Wacom ISDv4 E6 Pen stylus
• Wacom ISDv4 E6 Finger touch
• Atmel Atmel maXTouch Digitizer

• Detects the current touch input state
• Displays the state visually in the LXQt panel
• Toggles touch on/off with a single click
• Automatically adapts icon color to panel theme

Visual examples of the Touch Toggle widget in use.

sudo apt install -y \
    lxqt-panel \
    liblxqt-globalkeys0 \
    liblxqt0 \
    libqt6widgets6 \
    libqt6gui6 \
    libqt6core6 \
    xinput \
    build-essential \
    cmake \
    qt6-base-dev \
    liblxqt-dev \
    libx11-dev \
    libxkbcommon-dev;

sudo ./scripts/clean-install.sh

or

pkill -x lxqt-panel;
sleep 1;

sudo install -m 0644 ./touchtoggle.desktop /usr/share/lxqt/lxqt-panel/touchtoggle.desktop;

rm -rf ./build
mkdir -p build;
cd build;

cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/usr;
make -j"$(nproc)";
sudo cmake --install . --prefix /usr;

sudo reboot

This widget is a native LXQt panel plugin backed by a small helper script.

• Panel plugin (libtouchtoggle.so)
• Helper script (touchctl) - talks to xinput
• SVG icons - bundled via Qt resources and installed system‑wide

/usr/lib/x86_64-linux-gnu/lxqt-panel/libtouchtoggle.so

/usr/share/lxqt/lxqt-panel/plugins/touchtoggle.desktop

Credit: Kitchen JS Font Icons

/usr/share/lxqt/lxqt-panel/icons/lxqt-sr-panel/
├── fingerprint-on.svg        (green)
├── fingerprint-off-dark.svg  (white)
└── fingerprint-off-light.svg (black)

LXQt only discovers panel plugins from /usr/share/lxqt/lxqt-panel/plugins/.

The panel widget delegates actual touch enable/disable logic to a small helper:

~/.local/bin/touchctl

• Lists touch devices
• Detects enabled/disabled state
• Toggles touch input via xinput

~/.local/bin/touchctl --device;
~/.local/bin/touchctl --status;
~/.local/bin/touchctl --state;
~/.local/bin/touchctl toggle;
~/.local/bin/touchctl --status;

xinput list --name-only | cat -A;

Do not install manually.

All cleanup, rebuild, and installation logic is centralized in:

./scripts/clean-install.sh

This script:

• Removes stale plugin versions (srplugin, old paths, /usr/local ghosts)
• Installs icons
• Builds and installs the panel plugin
• Prompts for reboot at the end

Run it from the repository root:

./scripts/clean-install.sh

1. Right‑click the LXQt panel
2. Select Configure Panel
3. Click Add Widgets
4. Scroll to Touch Toggle
5. Click Add
6. Close the panel configuration

The fingerprint icon should now appear in the panel.

This project was cleaned up and renamed during development:

• srplugin → touchtoggle
• lxqt-sr-panel → lxqt-touchtoggle-panel
• srPanelPlugin → touchtogglePanelPlugin

All legacy identifiers are removed by clean-install.sh.

• Panel icon is set in C++, not via .desktop
• SVGs are bundled using icons.qrc
• .desktop icon is only used for the Add Widgets list
• LXQt silently ignores mismatched plugin IDs - exact naming matters

• Linux drawing tablets
• Convertible laptops
• Stylus‑only workflows
• Palm‑rejection control
• Kiosk / demo systems

• Stable
• Survives reboot
• No duplicate plugin loading
• Clean install path