nix

commit f0bbf2f84fa2394f07ecd7c728d52e0b61b30574
parent 936a581bfb337a83d3baee283828472758380103
Author: mtmn <miro@haravara.org>
Date:   Sat, 18 Apr 2026 20:14:35 +0200

dotfiles: add wl-color-picker

Diffstat:
A
modules/mixins/dotfiles/bin/wl-color-picker
 | 
102
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

1 file changed, 102 insertions(+), 0 deletions(-)
diff --git a/modules/mixins/dotfiles/bin/wl-color-picker b/modules/mixins/dotfiles/bin/wl-color-picker
@@ -0,0 +1,102 @@
+#!/bin/bash
+#
+# License: MIT
+#
+# A script to easily pick a color on a wayland session by using:
+# slurp to select the location, grim to get the pixel, convert
+# to make the pixel a hex number and zenity to display a nice color
+# selector dialog where the picked color can be tweaked further.
+#
+# The script was possible thanks to the useful information on:
+# https://www.trst.co/simple-colour-picker-in-sway-wayland.html
+# https://unix.stackexchange.com/questions/320070/is-there-a-colour-picker-that-works-with-wayland-or-xwayland/523805#523805
+#
+
+showhelp() {
+    echo "A basic wlroots compatible color picker script."
+    echo ""
+    echo "Usage:"
+    echo "  wl-color-picker [command] [options]"
+    echo ""
+    echo "Commands:"
+    echo "  clipboard       Copy color to clipboard without dialog"
+    echo "    --no-notify   Don't show a system notification of copied color"
+}
+
+CLIPBOARD=0
+NO_NOTIFY=0
+
+while [ "$1" ]; do
+    case $1 in
+        '-h' | '--help' | 'help' | '?' )
+            showhelp
+            exit
+            ;;
+        'clipboard' )
+            CLIPBOARD=1
+            ;;
+        '--no-notify' )
+            NO_NOTIFY=1
+            ;;
+    esac
+
+    shift
+done
+
+# Check if running under wayland.
+if [ "$WAYLAND_DISPLAY" = "" ]; then
+    zenity  --error --width 400 \
+        --title "No wayland session found." \
+        --text "This color picker must be run under a valid wayland session."
+
+    exit 1
+fi
+
+# Get color position
+position=$(slurp -b 00000000 -p)
+
+# Sleep at least for a second to prevet issues with grim always
+# returning improper color.
+sleep 1
+
+# Store the hex color value using graphicsmagick or imagemagick.
+if command -v /usr/bin/gm &> /dev/null; then
+    color=$(grim -g "$position" -t png - \
+        | /usr/bin/gm convert - -format '%[pixel:p{0,0}]' txt:- \
+        | tail -n 1 \
+        | rev \
+        | cut -d ' ' -f 1 \
+        | rev
+    )
+else
+    color=$(grim -g "$position" -t png - \
+        | convert - -format '%[pixel:p{0,0}]' txt:- \
+        | tail -n 1 \
+        | cut -d ' ' -f 4
+    )
+fi
+
+if [ $CLIPBOARD -eq 1 ]; then
+    echo $color | wl-copy -n
+    if [ $NO_NOTIFY -ne 1 ]; then
+        notify-send "Color copied to clipboard." $color
+    fi
+else
+    # Display a color picker and store the returned rgb color
+    rgb_color=$(zenity --color-selection \
+        --title="Copy color to Clipboard" \
+        --color="${color}"
+    )
+
+    # Execute if user didn't click cancel
+    if [ "$rgb_color" != "" ]; then
+        # Convert rgb color to hex
+        hex_color="#"
+        for value in $(echo "${rgb_color}" | grep -E -o -m1 '[0-9]+'); do
+           hex_color="$hex_color$(printf "%.2x" $value)"
+        done
+
+        # Copy user selection to clipboard
+        echo $hex_color | wl-copy -n
+    fi
+fi