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39 lines
1.5 KiB
Bash
Executable File
39 lines
1.5 KiB
Bash
Executable File
#!/bin/bash
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dir_icons="/usr/local/bin/icons"
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MON="HDMI-1" # Discover monitor name with: xrandr | grep " connected"
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STEP=10 # Step Up/Down brightnes by: 5 = ".05", 10 = ".10", etc.
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CurrBright=$( xrandr --verbose --current | grep ^"$MON" -A5 | tail -n1 )
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CurrBright="${CurrBright##* }" # Get brightness level with decimal place
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Left=${CurrBright%%"."*} # Extract left of decimal point
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Right=${CurrBright#*"."} # Extract right of decimal point
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MathBright="0"
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[[ "$Left" != 0 && "$STEP" -lt 10 ]] && STEP=10 # > 1.0, only .1 works
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[[ "$Left" != 0 ]] && MathBright="$Left"00 # 1.0 becomes "100"
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[[ "${#Right}" -eq 1 ]] && Right="$Right"0 # 0.5 becomes "50"
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MathBright=$(( MathBright + Right ))
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dunstify -a "Brightness" \
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"Brightness" \
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"Current brightness is $MathBright%" \
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-r 100 \
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-i "$dir_icons"/sun.svg
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[[ "$1" == "up" || "$1" == "+" ]] && MathBright=$(( MathBright + STEP ))
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[[ "$1" == "down" || "$1" == "-" ]] && MathBright=$(( MathBright - STEP ))
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[[ "${MathBright:0:1}" == "-" ]] && MathBright=0 # Negative not allowed
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[[ "$MathBright" -gt 150 ]] && MathBright=150 # Can't go over 1.50
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if [[ "${#MathBright}" -eq 3 ]] ; then
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MathBright="$MathBright"000 # Pad with lots of zeros
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CurrBright="${MathBright:0:1}.${MathBright:1:2}"
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else
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MathBright="$MathBright"000 # Pad with lots of zeros
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CurrBright=".${MathBright:0:2}"
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fi
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xrandr --output "$MON" --brightness "$CurrBright" # Set new brightness
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