#!/bin/bash
#
# render_doIdentityImages.sh -- This function provides image
# rendering feature to centos-art.sh script.
#
# Copyright (C) 2009-2010 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
# USA.
# 
# ----------------------------------------------------------------------
# $Id: render_doIdentityImages.sh 96 2010-09-19 06:39:32Z al $
# ----------------------------------------------------------------------

function render_doIdentityImages {

    local EXPORTID=''
    local EXTERNALFILES=''
    local EXTERNALFILE=''

    # Export id used inside design templates. This value defines the
    # design area we want to export.
    EXPORTID='CENTOSARTWORK'

    # Start processing the base rendering list of FILES. Fun part
    # approching :-).
    for FILE in $FILES; do

        # Call shared variable re-definitions.
        render_getIdentityDefs

        # Check export id inside design templates.
        grep "id=\"$EXPORTID\"" $INSTANCE > /dev/null
        if [[ $? -gt 0 ]];then
            cli_printMessage "`eval_gettext "The export id (\\\$EXPORTID) was not found inside \\\$TEMPLATE."`" "AsErrorLine"
            echo '----------------------------------------------------------------------'
            continue
        fi

        # Define final image width. If FILE name is a number, asume it
        # as the width value of the image being rendered. Otherwise
        # use design template default width value.
        WIDTH=$(basename $FILE)
        if [[ $WIDTH =~ '^[0-9]+$' ]];then
            WIDTH="--export-width=$WIDTH" 
        else
            WIDTH=''
        fi

        # Check =THEME= translation marker existence inside design
        # template instance and replace it with the name of the theme
        # being rendered.
        grep "=THEME=" $INSTANCE > /dev/null
        if [[ $? -eq 0 ]];then
            sed -i -e "s!=THEME=!$(cli_getThemeName)!g" $INSTANCE
        fi

        # Check external files existence. External files are used when
        # reusing background images inside design templates. In these
        # cases external files point to images which contain the
        # appropriate background image used by design template to
        # propagate theme's artistic motif.
        EXTERNALFILES=$(egrep '(xlink:href|sodipodi:absref)="/home/centos/artwork/' $INSTANCE \
            | sed -r 's!^[[:space:]]+!!' \
            | sed -r 's!^(xlink:href|sodipodi:absref)="!!' \
            | sed -r 's!".*$!!' | uniq)
        for EXTERNALFILE in $EXTERNALFILES;do
            cli_checkFiles $EXTERNALFILE
        done

        # Render template instance and modify the inkscape output to
        # reduce the amount of characters used in description column
        # at final output.
        inkscape $INSTANCE \
            --export-id=$EXPORTID $WIDTH \
            --export-png=$FILE.png \
                | sed -r -e "s!Area !`gettext "Area"`: !" \
                -e "s!Background RRGGBBAA:!`gettext "Background"`: RRGGBBAA!" \
                -e "s!Bitmap saved as:.+/trunk/!`gettext "Saved as"`: trunk/!"

        # Remove template instance. 
        if [[ -a $INSTANCE ]];then
            rm $INSTANCE
        fi

        # Check post-rendering actions. Do we have any? If we don't,
        # then continue with the next file in the list.
        if [[ ${#ACTIONS[@]} -lt 1 ]];then
            continue
        fi

        # Execute post-rendering actions.
        for ACTION in "${ACTIONS[@]}"; do

            if [[ "$ACTION" == '' ]] || [[ "$ACTION" == 'renderImage' ]];then
                continue
            fi

            case "$ACTION" in

                renderSyslinux )
                    render_doIdentityImageSyslinux $FILE
                    ;;

                renderGrub )
                    render_doIdentityImageGrub $FILE
                    ;;

                renderKSplash )
                    render_doIdentityImageKsplash $FILE
                    ;;

                renderFormats:* )
                    render_doIdentityImageFormats $FILE "$ACTION"
                    ;;

                renderBrands:* )
                    render_doIdentityImageBrands "$FILE" "$ACTION"
                    ;;

                groupByFormat:* )
                    groupByFormat "$FILE" "$ACTION"
                    ;;

            esac

        done

        echo '----------------------------------------------------------------------'

   done \
      | awk 'BEGIN {FS=": "} \
         { if ( $0 ~ /^-+$/ ) print $0; else \
            printf "%-15s\t%s\n", $1, $2 }'

}