eis

#!/bin/bash

# ----------------------------------------------------------------------------

# /var/install/bin/cui-lcd4linux-cycle-layouts.sh - Cycle through all configured layouts

# Creation:     2010-01-09 Y. Schumann

# Copyright (c) 2001-2015 The eisfair Team, <team(at)eisfair(dot)org>

# Distributed under the terms of the GNU General Public License v2

# ----------------------------------------------------------------------------

​

exec 2> /tmp/cui-lcd4linux-cycle-layouts-trace$$.log

set -x

​

# include libs

. /var/install/include/eislib

. /var/install/include/configlib

​

packageName=cui-lcd4linux

nativeMainConfiguration='/etc/lcd4linux/lcd4linux.main.conf'

currentLayoutFile='/etc/lcd4linux/lcd4linux.currentlayout'

​

# Load configurations

. /etc/config.d/$packageName

if [ -f $currentLayoutFile ] ; then

    . $currentLayoutFile

else

    currentActiveLayout=1

    echo "$currentActiveLayout" > $currentLayoutFile

fi

​

​

# ----------------------------------------------------------------------------

# Update native lcd configuration by cycling through configured layouts

# ----------------------------------------------------------------------------

cycleLayout () {

    nextLayout=$((currentActiveLayout+1))

​

    # At first count active layouts

    idx=1

    activeLayouts=0

    while [ ${idx} -le ${LCD_LAYOUT_N} ] ; do

        # Loop over all configured layouts

        eval active='$LCD_LAYOUT_'${idx}'_ACTIVE'

        if [ "$active" == 'yes' ] ; then

            activeLayouts=$((activeLayouts+1))

        fi

        idx=$((idx+1))

    done

​

    # If next layout number is greater than the number of available

    # active layouts, restart cycle on layout 1.

    if [ ${nextLayout} -gt ${activeLayouts} ] ; then

        nextLayout=1

    fi

​

    # Now determine the layout name to activate

    idx=1

    idx2=1

    while [ ${idx} -le ${LCD_LAYOUT_N} ] ; do

        # Loop over all configured layouts

        eval active='$LCD_LAYOUT_'${idx}'_ACTIVE'

        if [ "$active" == 'yes' ] ; then

            if [ ${idx2} -eq ${nextLayout} ] ; then

                eval layoutName='$LCD_LAYOUT_'${idx2}'_NAME'

                sed -e "s#Layout '.*'\$#Layout '$layoutName'#g" ${nativeMainConfiguration} > ${nativeMainConfiguration}.new

                mv ${nativeMainConfiguration}.new ${nativeMainConfiguration}

                chmod 600 ${nativeMainConfiguration}

                chown root.root ${nativeMainConfiguration}

                rc-service cui-lcd4linux restart

                echo "currentActiveLayout=$nextLayout" > ${currentLayoutFile}

                return

            fi

            idx2=$((idx2+1))

        fi

        idx=$((idx+1))

    done

}

​

​

# ============================================================================

# Main

# ============================================================================

if [ "${START_LCD}" == 'yes' ] ; then

    cycleLayout

fi

​

# ============================================================================

# End

# ============================================================================