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#!/bin/bash
#august 2016 stemsee lhpup.org license: GPL version 3 or any later version
#additions by DryFalls
#edit: geometryfn added in 2021 by stemsee
[ "`whoami`" != "root" ] && exec sudo -E -S ${0} "$@" 
APPTITLE="xvkbd launcher"
APPNAME="xvkbdconf" # for Xdialog taskbar icon
SCRIPTNAME="script"
APPVERSION="0.2"
ICON="/usr/share/pixmaps/keyboard.png"
export camino=/root/.config/geometry
[ ! -d "$camino" ] && mkdir -p $camino
export res=`xwininfo -root | grep 'geometry' | awk '{print $2}' | cut -f1 -d'+'`
export XX=`echo $res | cut -f1 -d'x'`
export YY=`echo $res | cut -f2 -d'x'`
export pos="$((XX / 4))+$(((YY / 2) + XX / 16))"
# Determine the path to this application.
APPDIR=`dirname "$0"`
cd "$APPDIR"
APPDIR="`pwd`"
function geometryfn (){
	nought=`xwininfo -stats -name "$1" | grep "$1"`
   XWININFO=`xwininfo -stats -name "$1"`
   if [[ ! -z "$nought" ]]; then
	   ARRAY=(${XWININFO#* X: })
	   AX=${ARRAY[0]}
	   AY=${ARRAY[4]}
	   RX=${ARRAY[8]}
	   RY=${ARRAY[12]}
	   W=${ARRAY[14]}
	   H=${ARRAY[16]}
	   X=$((AX-RX))
	   Y=$((AY-RY))
	   echo "$W"x"$H"+"$X"+"$Y" > "$camino"/`echo "$1" | awk '{print $1}'`
	else
	return 1
	exit 1
   fi
}
export -f geometryfn

running=`ps -e | grep xvkbd | wc -l` 
if [[ "$running" -gt 2 ]]; then
	geometryfn 'xvkbd - Virtual Keyboard'
	killall xvkbd #check if running, one instance only
else
	if [ -f $camino/xvkbd ]; then
		xvkbd -geometry `cat $camino/xvkbd` -no-keypad -always-on-top &
	else
		xvkbd -geometry $((XX / 2))x$((XX / 5))+"$pos" -no-keypad -always-on-top &
	fi
fi