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60 lines
1.2 KiB
Bash
60 lines
1.2 KiB
Bash
#!/bin/bash
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##
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# Change brightness and show a notification
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multiply-by-10-and-strip-decimals() {
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declare number="$1"
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bc <<<"10 * $number" | sed 's/\..*$//g'
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}
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current-brightness() {
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xrandr --current --verbose | grep -Pom 1 '(?<=Brightness: ).*'
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}
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bar() {
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declare -i count="$1"
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[[ $count -eq 0 ]] && return 0
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printf '─'
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((count--))
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bar "$count"
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}
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prefix-with-zero-point() {
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echo "0.$1"
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}
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current-output() {
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xrandr --query | grep -Po '^.*(?= connected)'
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}
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set-brightness() {
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declare output="$1" brightness="$2"
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xrandr --output "$output" --brightness "$brightness"
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}
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notify-brightness() {
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notify-send.sh \
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--replace-file=$HOME/.cache/clopper-ob/brightness.id \
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" $(bar $((3 * $(multiply-by-10-and-strip-decimals $(current-brightness)))))"
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}
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increase-brightness() {
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if [[ $(multiply-by-10-and-strip-decimals $(current-brightness)) -ge 10 ]]; then
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return 0
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fi
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set-brightness "$(current-output)" "$(bc <<<"$(current-brightness) + 0.1")"
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}
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decrease-brightness() {
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set-brightness "$(current-output)" "$(bc <<<"$(current-brightness) - 0.1")"
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}
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if [[ $1 == '+' ]]; then
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increase-brightness
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elif [[ $1 == '-' ]]; then
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decrease-brightness
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fi
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notify-brightness
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