#!/bin/bash

#

# render_doIdentityImages.sh -- This function renders image-based

# identity contents.

#

# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307

# USA.

# 

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

# $Id$

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

function render_doIdentityImages {

    local EXPORTID=''

    local EXTERNALFILES=''

    local EXTERNALFILE=''

    local COMMONDIRCOUNT=0

    # Export id used inside design templates. This value defines the

    # design area we want to export.

    EXPORTID='CENTOSARTWORK'

    # Start processing the base rendition 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 "There is no export id (\\\$EXPORTID) inside \\\$TEMPLATE."`" "AsErrorLine"

            cli_printMessage '-' 'AsSeparatorLine'

            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 existence of external files. In order for design

        # templates to point different artistic motifs, design

        # templates make use of external files that point to specific

        # artistic motif background images. If such external files

        # doesn't exist, print a message and stop script execution.

        # We cannot continue wihtout the background information.

        EXTERNALFILES="(xlink:href|sodipodi:absref)=\"$(cli_getRepoTLDir $TEMPLATE)"

        EXTERNALFILES=$(egrep "${EXTERNALFILES}" "${INSTANCE}" \

            | sed -r 's!^[[:space:]]+!!' \

            | sed -r 's!^(xlink:href|sodipodi:absref)="!!' \

            | sed -r 's!".*$!!' | sort | 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.

        cli_printMessage "$(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:!`gettext "Saved as"`:!")" \

            'AsRegularLine'

        # Remove template instance. 

        if [[ -a $INSTANCE ]];then

            rm $INSTANCE

        fi

        # Execute post-rendition actions.

        for ACTION in "${POSTACTIONS[@]}"; do

            case "$ACTION" in

                renderSyslinux* )

                    render_doIdentityImageSyslinux "${FILE}" "$ACTION"

                    ;;

                renderGrub* )

                    render_doIdentityImageGrub "${FILE}" "$ACTION"

                    ;;

                renderFormats:* )

                    render_doIdentityImageFormats "${FILE}" "$ACTION"

                    ;;

                groupByType:* )

                    render_doIdentityGroupByType "${FILE}" "$ACTION"

                    ;;

            esac

        done

        # Output separator line.

        cli_printMessage '-' 'AsSeparatorLine'

        # Apply last-rendition actions. As convenction, last-rendition

        # actions are applied after all images inside the same

        # directory structure have been produced. Notice that, in

        # order to apply last-rendition actions correctly,

        # centos-art.sh needs to "predict" what the last file in the

        # same directory structure would be. There is no magic here,

        # so we need to previously define which are the common

        # directory structures centos-art.sh could produce content

        # for inside an array variable. Later, using the index of that

        # array variable we could check the next item in the array

        # against the file being currently produced. If they match, we

        # haven't reached the end of the same directory structure, but

        # if they don't match, we do have reach the end of the same

        # directory structure and it is time for last-rendition

        # actions to be evaluated before go producing the next

        # directory structure in the list of files to process.

        if [[ ${COMMONDIRS[$((COMMONDIRCOUNT + 1))]} != $(dirname "$TRANSLATION") ]];then

            # At this point centos-art.sh is producing the last file

            # from the same unique directory structure, so, before

            # producing images for the next directory structure lets

            # evaluate last-rendition actions for the current

            # directory structure. 

            for ACTION in "${LASTACTIONS[@]}"; do

                case "$ACTION" in

                    renderKSplash )

                        render_doIdentityImageKsplash

                        ;;

                    renderDm:* )

                        render_doIdentityImageDm "$ACTION"

                        ;;

                    groupByType:* )

                        render_doIdentityGroupByType "$ACTION"

                        ;;

                renderBrands )

                    render_doIdentityImageBrands "${FILE}" "$ACTION"

                    ;;

                esac

            done

        fi

        # Increment common directory counter.

        COMMONDIRCOUNT=$(($COMMONDIRCOUNT + 1))

    done

}