x230t-rotate

#!/bin/sh
#
# NAME
#
#   x230t-rotate - rotate ThinkPad X230t's display
#
# SYNOPSIS
#
#   x230t-rotate [<rotation>]
#
# DESCRIPTION
#
#   This is a display rotation script to be used with a ThinkPad X230t
#   tablet.  With trivial modifications one should also be able use it
#   with other Wacom tablets.  The supplied rotation can be the usual
#   ones defined by xrandr(1) and xsetwacom(1), i.e.,
#
#       normal, none        no rotation
#       inverted, half      inverted display, "left", and "right".
#       left, ccw           ccw rotation from normal by 90 degrees
#       right, cw           cw rotation from normal by 90 degrees
#
#   Additionally, we define the following two rotations:
#
#       flip                switch between normal and inverted,
#                           or left and right
#       sideways            switch between normal and left,
#                           or inverted and right
#
#   Since switching between rotations requires knowledge of current
#   rotation, the current state is always written to ~/.x230t-rotate
#   at the end of execution.
#
# DEPENDENCIES
#
#   xrandr(1) and xsetwacom(1)
#
# SEE ALSO
#
#   <https://github.com/martin-ueding/thinkpad-scripts>
#   More featureful scripts that automate screen rotation.
#

# Check the output of xrandr(1) and xinput(1) and change accordingly.
# We could parse the outputs, but that'd create an unnecessary overhead.
screen="LVDS1"
stylus="Wacom ISDv4 E6 Pen stylus"
finger="Wacom ISDv4 E6 Finger touch"

# If there's no state file, assume that the display isn't rotated.
state="$HOME/.x230t-rotate"
[ -f "$state" ] && current=$(cat "$state") || current="normal"

case "$1" in
    n*)         set -- "normal" "none"   ;;
    i*|half)    set -- "inverted" "half" ;;
    l*|ccw)     set -- "left" "ccw"      ;;
    r*|cw)      set -- "right" "cw"      ;;
    f*) case "$current" in
            n*) set -- "inverted" "half" ;;
            i*) set -- "normal" "none"   ;;
            l*) set -- "right" "cw"      ;;
            r*) set -- "left" "ccw"      ;;
        esac
        ;;
    s*) case "$current" in
            n*) set -- "left" "ccw"      ;;
            i*) set -- "right" "cw"      ;;
            l*) set -- "normal" "none"   ;;
            r*) set -- "inverted" "half" ;;
        esac
        ;;
    *)  set -- "normal" "none" ;;
esac

xrandr --output "$screen" --rotate "$1"
xsetwacom set "$stylus" Rotate "$2"
xsetwacom set "$finger" Rotate "$2"

# Write current rotation to state file.
echo "$1" >"$state"