#!/bin/bash

#

# render_convertPngToThumbnail.sh -- This function provides post-rendition to

# create thumbnails from images produced by centos-art base-rendition.

# Thumbnails are created in PNG and JPG format for you to decide which

# is the more appropriate one. When no size is specified, thumbnails

# are created at 250 pixels width and height is automatically

# calculated to match the image ratio.

#

# Copyright (C) 2009-2011 Alain Reguera Delgado

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or (at

# your option) any later version.

#

# This program is distributed in the hope that it will be useful, but

# WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

# General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

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

# $Id$

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

function render_convertPngToThumbnail {

    # Get image size.

    local SIZES=$(render_getConfigOption "$ACTION" '2-')

    # Check base file existence.

    cli_checkFiles "${FILE}.png" 'f'

    # Check image sizes and do convertion.

    if [[ "$SIZES" == "" ]];then

        SIZES='250'

    fi

    # Create thumbnails.

    for SIZE in $SIZES;do

        cli_printMessage "${FILE}-thumb-${SIZE}.png" "AsSavedAsLine"

        convert -resize ${SIZE} ${FILE}.png ${FILE}-thumb-${SIZE}.png

        cli_printMessage "${FILE}-thumb-${SIZE}.jpg" "AsSavedAsLine"

        convert -resize ${SIZE} ${FILE}-thumb-${SIZE}.png ${FILE}-thumb-${SIZE}.jpg

        cli_printMessage "${FILE}-thumb-${SIZE}.pdf" "AsSavedAsLine"

        convert -resize ${SIZE} ${FILE}-thumb-${SIZE}.png ${FILE}-thumb-${SIZE}.pdf

    done

}