#!/bin/bash

args=("$@")

#echo Number of arguments: $#

tablet=$(xsetwacom list | grep stylus | cut -f 1 | xargs)

Wx=${args[0]}
Wy=${args[1]}
alpha=${args[2]}
Sx=${args[3]}
Sy=${args[4]}
skewX=${args[5]}
skewY=${args[6]}

xsetwacom --set "$tablet" ResetArea
Nx=$(xsetwacom get "$tablet" Area | cut -f 3 -d ' ')
Ny=$(xsetwacom get "$tablet" Area | cut -f 4 -d ' ')

resX=$(xdpyinfo | awk '/dimensions/{print $2}' | cut -f 1 -d 'x')
resY=$(xdpyinfo | awk '/dimensions/{print $2}' | cut -f 2 -d 'x')

#dual display hack
#resX=$(($resX/2))

Nxx=$(($Nx/$alpha))
Nyy=$(($Sx*$Ny*$Wy/$alpha/$Sy/$Wx))

dx=$((($resX-$Wx)/2 + $skewX))
dy=$((($resY-$Wy)/2 + $skewY))

#echo $tablet
#echo Area 0 0 $Nxx $Nyy
#echo MapToOutput ${Wx} ${Wy} ${dx} ${dy}

#xsetwacom --set "${tablet}" Area 0 0 $Nxx $Nyy
xsetwacom --set "${tablet}" Area $((($Nx-$Nxx)/2)) 0 $((($Nx+$Nxx)/2)) $Nyy
#xsetwacom --set "${tablet}" Area 0 $(($Ny-$Nyy)) $Nxx $Ny
xsetwacom --set "${tablet}" MapToOutput ${Wx}x${Wy}+$dx+$dy