synpad.sh

#!/bin/bash
# Playing sounds by tapping
# Copyright (c) 2012 Yu-Jie Lin
# 
# Permission is hereby granted, free of charge, to any person obtaining a copy of
# this software and associated documentation files (the "Software"), to deal in
# the Software without restriction, including without limitation the rights to
# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
# of the Software, and to permit persons to whom the Software is furnished to do
# so, subject to the following conditions:
# 
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
#
# Clip: http://youtu.be/HrSgK9pe0Ko
#
# Dependencies:
# 
#  * synclient with SHMConfig enabled.
#  * mplayer

trap quit SIGINT
synclient TouchpadOff=1

SOUNDS=(
       /usr/share/sounds/error.wav
       /usr/share/sounds/email.wav
       /usr/share/sounds/question.wav
       /usr/share/sounds/info.wav
       /usr/share/sounds/gtk-events/clicked.wav
       /usr/share/sounds/gtk-events/toggled.wav
       )

quit()
{
  echo
  synclient TouchpadOff=0
  exit 0
}

clear_cells()
{
  echo -e "\e[$(( YCELLS + 1 ))A"
}

print_cells()
{
  local x y idx
  for (( y = 0; y < YCELLS; y++ )); do
    for (( x = 0; x < XCELLS; x++ )); do
      (( idx = x + y * XCELLS ))
      if [[ $1 == $idx ]]; then
        echo -ne '\e[1;31m◾\e[0m'
      else
        echo -ne '\e[1;32m◽\e[0m'
      fi
      echo -n ' '
    done
    echo
  done
}

echo "Press Enter and move your finger to top-left corner and bottom-right corner as much as you can within 5 seconds..."
read

LeftEdge=$(( 1<<31 ))
TopEdge=$(( 1<<31 ))
RightEdge=0
BottomEdge=0
while read _time x y z f w l r u d m multi gl gm gr gdx gdy; do
  # Skip heading line
  [[ $_time == "time" ]] && continue

  # Timeout after 5 seconds
  (( ${_time%.*} >= 5 )) && break

  (( x < LeftEdge ))   && LeftEdge=$x
  (( y < TopEdge ))    && TopEdge=$y
  (( x > RightEdge ))  && RightEdge=$x
  (( y > BottomEdge )) && BottomEdge=$y
  echo -ne "\e[2K\e[0GLeft Top Right Bottom: $LeftEdge $TopEdge $RightEdge $BottomEdge"
done < <(synclient -m 1)

XCELLS=3
YCELLS=2
(( xd = (RightEdge - LeftEdge) / 3 ))
(( yd = (BottomEdge - TopEdge) / 2 ))

echo
echo
echo 'Press Ctrl+C to exit.'
echo

print_cells
state=0
while read _time x y z f w l r u d m multi gl gm gr gdx gdy; do
  # Skip heading line
  [[ $_time == "time" ]] && continue

  case "$state" in
    0)
      if (( f > 0 )); then
        (( x < LeftEdge || x > RightEdge || y < TopEdge || y > BottomEdge )) && continue
        (( idx = (x - LeftEdge) / xd + (y - TopEdge) / yd * XCELLS ))
        mplayer -really-quiet ${SOUNDS[idx]} &>/dev/null &
        clear_cells
        print_cells $idx
        state=1
      fi
      ;;
    1)
      if (( f == 0 )); then
        clear_cells
        print_cells
        state=0
      fi
      ;;
  esac
done < <(synclient -m 1)