#!/bin/bash
# based on http://liken.otsoa.net/pub/x41t/rotatetablet
# modifications by JMR 2009-11-11
	
#STATUS_FILE=~/.rotate-status
STATUS_FILE=/tmp/.rotate-status
	

######################## Keycodes PgUp/PgDown
function keymap() {
   USER=`who |grep tty7 |awk -F" " '{print $1}'`
   if [ "$USER" ]
   then
      case "$1" in
      3)
         echo 'Remapping buttons (right) ...'
         sudo setkeycodes 71 105 6f 106 6e 108 6d 103 
         ;;
      1)
         echo 'Remapping buttons (left) ...'
         sudo setkeycodes 71 106 6f 105 6e 103 6d 108 
         ;;
      2)
         echo 'Remapping buttons (inverted) ...'
         sudo setkeycodes 71 108 6f 103 6e 106 6d 105 
         ;;
      *)
         echo 'Remapping buttons (normal) ...'
         sudo setkeycodes 71 103 6f 108 6e 105 6d 106
         ;;
      esac
   fi
}
###############################
function rotate() {
	
    case "$1" in
        3|right) N=3; T=cw ; keymap 3 ;;
        1|left) N=1; T=ccw ; keymap 1 ;;
        2|inverted) N=2; T=half ; keymap 2 ;;
        0|normal) N=0; T=none ; keymap 0 ;;
        *)
           echo -e "Usage:\n  $(basename $0) [left|right|inverted|normal]\n\nIf no option is given, rotates the screen 90 degrees to the right.\n";
	
           exit 1
           ;;
    esac
	
    #xrandr -o $N & \
    
   	
    #More secure
    if [ "`/usr/bin/xrandr -o $N -v | grep -i 'randr' | wc -l`" -ne "1" ]
    then
        echo '!! Something went wrong...'
        export DISPLAY=":0.0"
        export XAUTHORITY=/var/lib/gdm/\:0.Xauth
        #/usr/bin/xset -display $DISPLAY dpms
        echo 'Trying to unrotate again...'
        /usr/bin/xrandr -o $N &
    fi
	
    xsetwacom set stylus Rotate $T & \
    echo $N > $STATUS_FILE
}
	
if [ "$#" == "0" ]; then
    rotate $(((3+0$(cat $STATUS_FILE 2>/dev/null))%4))
else
    rotate $1
fi