wallswitch

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| Monitor 1 | Monitor 2 |         | Monitor n |
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Randomly sets wallpapers for n Linux desktop monitors (arranged horizontally).

[Define papéis de parede aleatoriamente para desktop Linux com n monitores (dispostos horizontalmente).]

wallswitch randomly selects and applies different wallpapers to each of n monitors arranged horizontally.

Run the command:

wallswitch

The default number of monitors is n = 2.

Images are recursively searched in the indicated directories ("dirs": [...]) for files with extensions ["avif", "jpg", "jpeg", "png", "svg", "tif", "webp"].

Help messages

To get help messages, run the command:

wallswitch -h

The output:

randomly sets wallpapers for n Linux desktop monitors (arranged horizontally).

Usage: wallswitch [OPTIONS]

Options:
  -c, --config
          Read the configuration file and exit the program
  -d, --min_dimension <MIN_DIMENSION>
          Set the minimum dimension that the height and width must satisfy
  -D, --max_dimension <MAX_DIMENSION>
          Set the maximum dimension that the height and width must satisfy
  -b, --min_size <MIN_SIZE>
          Set a minimum file size (in bytes) for searching image files
  -B, --max_size <MAX_SIZE>
          Set a maximum file size (in bytes) for searching image files
  -i, --interval <INTERVAL>
          Set the interval (in seconds) between each wallpaper displayed
  -n, --monitor <MONITOR>
          Set the number of monitors [default: 2]
  -s, --sort
          Sort the images found
  -v, --verbose
          Show intermediate runtime messages
  -h, --help
          Print help (see more with '--help')
  -V, --version
          Print version

min_dimension is the minimum value obtained from the height and width of an image file:

min_dimension = min(height, width).

Configuration

Displaying the Configuration

You can view the contents of the wallswitch configuration file using these commands:

• Displays the configuration directly:

wallswitch -c

• Parses the json configuration using the jq command-line tool (requires jq to be installed):

cat ~/.config/wallswitch/wallswitch.json | jq

The default configuration file (~/.config/wallswitch/wallswitch.json) has the following structure:

{
  "desktop": "gnome",
  "min_dimension": 600,
  "max_dimension": 128000,
  "min_size": 1024,
  "max_size": 1073741824,
  "dirs": [
    "/home/user_name/Figures",
    "/home/user_name/Images",
    "/home/user_name/Pictures",
    "/home/user_name/Wallpapers",
    "/home/user_name/Imagens",
    "/usr/share/wallpapers",
    "/usr/share/backgrounds",
    "/tmp/teste"
  ],
  "extensions": [
    "avif",
    "jpg",
    "jpeg",
    "png",
    "svg",
    "tif",
    "webp"
  ],
  "interval": 1800,
  "monitor": 2,
  "sort": false,
  "verbose": false,
  "wallpaper": "/home/user_name/wallswitch.jpg"
}

Editing the Configuration

To customize wallswitch behavior, edit the configuration file directly:

• Directory paths: Modify the "dirs" array to include locations containing your desired image files. Remember to adjust the path according to your user name.

• Dimensions: Choose the minimum and maximum dimensions.

• Extensions: Modify the “extensions” array to select the image file extensions.

• Interval: Change the "interval" value (in seconds) to control how often wallpapers are cycled.

Important Note: Ensure that all directories listed in "dirs" have read permissions for the user running wallswitch.

Wallpaper suggestions

• Get all gnome backgrounds.

Dowload wallpapers with:

git clone https://github.com/zebreus/all-gnome-backgrounds.git

Desktops

Make changes to the source code.

git clone https://github.com/claudiofsr/wallswitch.git

cd wallswitch

Edit the file: 'src/desktops.rs'.

To build and install from source, run the following command:

cargo b -r && cargo install --path=.

gnome

Create a wallpaper file and set it as your desktop background image.

See the function:

fn set_gnome_wallpaper()

xfce

See the function:

fn set_xfce_wallpaper()

Monitor 1: "/backdrop/screen0/monitorDP-0/workspace0/last-image"

Monitor 2: "/backdrop/screen0/monitorDP-2/workspace0/last-image"

Monitor N: ...

openbox

See the function:

fn set_openbox_wallpaper()

Mutually exclusive features

To use the clap (default):

cargo b -r && cargo install --path=. --features args_v1

To reduce binary size, alternatively use my Command Line Argument Parser (args_v2.rs):

cargo b -r && cargo install --path=. --features args_v2

Dependencies

• imagemagick (image viewing/manipulation program).

• feh (fast and light image viewer).