adjustall

#!/bin/bash

# Program to adjust screen brightness
# in here I'll assume everything is in the home directory apart from absolute paths
# Brightness limit is from 0.18 to 1.1. Should you decide you do not want it. You are
# free to remove it. But careful with what you type if you do so. Your screen certainly 
# can whiten or black out


# --- Limit starts here. If you decide that you don't need it feel free to remove it
brightValue=$(echo "scale=0;(${1}*1000)/1" | bc)
#echo $brightValue

if [ $brightValue -lt 180 ]; then
    echo 'a screen too dim is bad for your eyes'
    exit 1
fi

if [ $brightValue -gt 1100 ]; then
    echo 'Excessive Brightness Detected'
    exit 1
fi
# --- Limit ends here


xrandr --output eDP-1  --brightness "${1}" &> /dev/null --gamma '1.05:0.9:1' --verbose


xcalib -red 1 1.0 97.0  -green 1 1.0 94.0 -blue 1 1.0 98.0 -a &> /dev/null
#xrandr --output eDP-1 --brightness ${1} --verbose
#xrandr --output eDP-1

# if the screen was is inverted reapply the modification
read isinvert < ~/isinvert
if [ $isinvert = 'true' ]; then
    xcalib -i -a &> /dev/null
else
    echo $isinvert &> /dev/null
fi

#--gamma '0.9686275:0.9411765:0.9803529168'