gBar/README.md

gBar

My personal blazingly fast and efficient status bar + widgets, in case anyone finds a use for it.

gBar: GTK Bar

Prerequisites

If you don't have the optional dependencies, some features are not available.

• wayland
• Hyprland(Optional -> For workspaces widget)
• nvidia-utils(Optional -> For Nvidia GPU status)
• bluez(Optional -> For Bluetooth status)
• GTK 3.0
• gtk-layer-shell
• PulseAudio server (PipeWire works too!)
• meson, gcc/clang, ninja

Building and installation (Manually)

1. Configure with meson

   All optional dependencies enabled

   meson setup build
   

2. Build and install

   ninja -C build && sudo ninja -C build install
   

Building and installation (AUR)

For Arch systems, gBar can be found on the AUR. You can install it e.g.: with yay yay -S gbar-git

Building and installation (Nix)

If you choose the Nix/NixOS installation there are a couple of ways to do it but they all require you to have flakes enabled.

• Building it seperately and just running the binary, run nix build in the directory and use the binary from ./result/bin
• Import the flake to inputs and then add gBar.defaultPackage.x86_64-linux to either environment.systemPackages or home.packages.
• Use the home manager module. This is done by, as in the previous way, importing the flake and then adding gBar.homeManagerModules.x86_64-linux.default into your home-manager imorts section. This exposes the option programs.gBar to home manager and you can look at the module file to see available options.

Running gBar

Open bar on monitor 0

gBar bar 0

Open audio flyin (either on current monitor or on the specified monitor)

gBar audio [monitor]

Open microphone flyin, this is equivalent to the audio flyin

gBar mic [monitor]

Open bluetooth widget

gBar bluetooth [monitor]

Gallery

Bar with default css

Audio widget with default css

Bluetooth widget with default css

Features / Widgets

Bar:

• Workspaces (Hyprland only. Technically works on all compositors implementing ext_workspace, though workspace control relies on Hyprland)
• Time
• Bluetooth (BlueZ only)
• Audio control
• Microphone control
• Power control
  • Shutdown
  • Restart
  • Suspend
  • Lock (Requires manual setup, see FAQ)
  • Exit/Logout (Hyprland only)
• Battery: Capacity
• CPU stats: Utilisation, temperature (Temperature requires manual setup, see FAQ)
• RAM: Utilisation
• GPU stats (Nvidia/AMD only): Utilisation, temperature, VRAM
• Disk: Free/Total
• Network: Current upload and download speed
• Update checking (Non-Arch systems need to be configured manually)

Bluetooth:

• Scanning of nearby bluetooth devices
• Pairing and connecting

Audio Flyin:

• Audio control
• Microphone control

Configuration for your system

Copy the example config (found under data/config) into ~/.config/gBar/config and modify it to your needs.

Plugins

gBar utilizes a plugin system for custom widgets anyone can create without modifying the source code. Plugins are native shared-libraries, which need to be placed inside ~/.local/lib/gBar, /usr/lib/gBar or /usr/local/lib/gBar. Inside example/ there is an example plugin setup. To build and run it, run the following commands inside the example directory:

meson setup build -Dprefix=~/.local

for the local user OR

meson setup build

for all users

ninja -C build install
gBar gBarHelloWorld

The second argument is the name of the shared library (without 'lib' and '.so').

FAQ

There are already many GTK bars out there, why not use them?

• Waybar: Great performance, though limited styling(Almost no dynamic sliders, revealers, ...) and (at least for me) buggy css.
• eww: Really solid project with many great customization options. There is one problem though: Performance.
  Due to the way eww configuration is set up, for each dynamic variable (the number of them quickly grows) you need a shell command which opens a process. This became quickly a bottleneck, where the bar took up 10% of the CPU-time due to the creation of many processes all the time (without even considering the workspace widget). gBar implements all of the information gathering(CPU, RAM, GPU, Disk, ...) in native C++ code, which is WAY faster. In fact, gBar was meant to be a fast replacement/alternative for eww for me.

And lastly: Implementing it myself is fun and a great excuse to learn something new!

What scheme are you using?

The colors are from the Dracula theme: https://draculatheme.com

I want to customize the colors

First, find where the data is located for gBar. Possible locations:

• /usr/share/gBar
• /usr/local/share/gBar
• ~/.local/share/gBar
• If you cloned this repository locally: Inside css/

Copy the scss and css files from within the data direction into ~/.config/gBar. e.g.:

mkdir ~/.config/gBar/
cp /usr/local/share/gBar/* ~/.config/gBar/

This will override the default behaviour. If you have sass installed, you can modify the scss file and then regenerate the css file accordingly. Else modify the css file directly.

The Audio widget doesn't open

Delete /tmp/gBar__audio. This happens, when you kill the widget before it closes automatically after a few seconds.

CPU Temperature is wrong / Lock doesn't work / Exiting WM does not work

See Configuration for your system

The icons are not showing!

Please install a Nerd Font from https://www.nerdfonts.com (I use Caskaydia Cove NF), and change style.css/style.scss accordingly (Refer to 'I want to customize the colors' for that). You will a Nerd Font with version 2.3.0 or newer (For more details see this comment)