37 lines
1,019 B
Bash
Executable file
37 lines
1,019 B
Bash
Executable file
#!/bin/sh
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msgTag="brightness" # Arbitrary but unique message tag
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highlight="#7aa2f7"
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round() {
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awk "BEGIN {printf \"%.0f\", $*}"
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}
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oldbrightness="$(cat /sys/class/backlight/*/brightness)"
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oldpercent="$(round "$oldbrightness * (100/255)")"
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case $1 in
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-* | +*) newpercent="$(round "$oldpercent + $1")" ;;
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*) newpercent=$1 ;;
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esac
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newbrightness="$(round "$newpercent * (255/100)")"
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if [ "$newpercent" -gt "100" ]; then
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icon="gpm-brightness-lcd"
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newpercent=100
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newbrightness=255
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elif [ "$newpercent" -gt "50" ]; then
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icon="gpm-brightness-lcd"
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elif [ "$newpercent" -gt "0" ]; then
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icon="gpm-brightness-lcd-disabled"
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else
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icon="gpm-brightness-lcd-disabled"
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newpercent=0
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newbrightness=0
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fi
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# shellcheck disable=2086
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round $newbrightness | sudo tee /sys/class/backlight/*/brightness
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notify-send -a "changeBrightness" -i "$icon" -u low "Brightness: ${newpercent}%" \
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-h "string:x-dunst-stack-tag:$msgTag" \
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-h "int:value:$newpercent" \
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-h "string:hlcolor:$highlight"
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