#!/bin/bash

#

# render_doIdentityImageDm.sh -- This function porvides last-rendition

# action to create gdm or kdm themes tar.gz files for different

# motifs, screen resolutions, and major releases of CentOS

# distribution. 

#

# Usage:

#

# ACTIONS[0]='BASE:renderImage'

# ACTIONS[1]='LAST:renderDm:TYPE:RESOLUTION'

#

# Where:

#

# TYPE = GNOME or KDE

# RESOLUTION = Any screen resolution available as background

# (e.g., 800x600, 1024x768, 2048x1536, etc.)

#

# For example, to produce GNOME display manager theme in 2048x1536,

# 1360x768, and 3271x1227 screen resolutions, for all major releases

# available, use the following definition inside GDM pre-rendition

# configuration script:

#

# ACTIONS[0]='BASE:renderImage'

# ACTIONS[1]='LAST:renderDm:GNOME:2048x1536 1360x768 3271x1227'

#

# 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_doIdentityImageDm {

    local RESOLUTIONS=''

    local VERSIONS=''

    local TPL=''

    local BGS=''

    local TMP=''

    local SYMBOL=''

    local DM=''

    # Get display manager passed from render.conf.sh pre-rendition

    # configuration script.

    DM=$(render_getConfOption "$1" '2')

    # Sanitate display manager possible values and define absolute

    # path to display manager design models (i.e., the place where

    # GdmGreeterTheme.xml and GdmGreeterTheme.desktop files are

    # stored) using display manager information passed from

    # render.conf.sh pre-rendition configuration script.

    if [[ $DM =~ '^GNOME$' ]];then

        TPL=/home/centos/artwork/trunk/Identity/Themes/Models/${THEMEMODEL}/Distro/BootUp/GDM

    elif [[ $DM =~ '^KDE$' ]];then

        TPL=/home/centos/artwork/trunk/Identity/Themes/Models/${THEMEMODEL}/Distro/BootUp/KDM

    else

        cli_printMessage "`eval_gettext "The display manager \\\`\\\$DM' is not supported."`" 'AsErrorLine'

        cli_printMessage "$(caller)" 'AsToKnowMoreLine'

    fi

    # Check absolute path to display manager design models.

    cli_checkFiles "$TPL" 'd'

    # Get screen resolutions passed from render.conf.sh pre-rendition

    # configuration script.

    RESOLUTIONS=$(render_getConfOption "$1" '3')

    # Check sanitated screen resolutions.

    if [[ "$RESOLUTIONS" == '' ]];then

        cli_printMessage "`gettext "There is no resolution information to process."`" 'AsErrorLine'

        cli_printMessage $(caller) "AsToKnowMoreLine"

    fi

    # Build release numbers list we want to produce display manager

    # for. The release numbers are defined inside GDM and KDM

    # directories under

    # trunk/Translations/Identity/Themes/Distro/BootUp/ structure,

    # using the centos-art.sh script.

    VERSIONS=$(find $ACTIONVAL -regextype posix-egrep -maxdepth 1 \

        -type d -regex "^.*/${RELEASE_FORMAT}$")

    # Check release numbers list.

    if [[ "$VERSIONS" == '' ]];then

        cli_printMessage "`gettext "There is no release number to work with"`" 'AsErrorLine'

        cli_printMessage "$(caller)" 'AsToKnowMoreLine'

    fi

    # Define directory storing different screen resolution backgrounds

    # images used to build display manager in different resolutions.

    BGS=$(cli_getRepoTLDir)/Identity/Themes/Motifs/$(cli_getThemeName)/Backgrounds/Img/Png

    # Define directory where temporal files are stored. Remember that

    # cli_getThemeName may return branch enumeration if we are

    # rendition under branches/ directory structure. In order to build

    # the theme directory we only use the thame name, not the numerial

    # information, so be sure to remove it here.

    TMP=$(cli_getThemeName | cut -d/ -f1)

    # Define png image file used as CentOS symbol. As convenction,

    # inside all CentOS art works (e.g., anaconda, firstboot, etc.),

    # we are using CentOS symbol at 48x48 pixels. This value seems to

    # be the middle dimension that fits all situations.

    SYMBOL=/home/centos/artwork/trunk/Identity/Brands/Img/CentOS/Symbol/5c-a/48.png

    cli_checkFiles "$SYMBOL" 'f'

    for VERSION in $VERSIONS;do

        VERSION=$(basename $VERSION)

        # Define directory to store release-specific images.

        IMG=$ACTIONVAL/$VERSION/Img

        # Check existence of release-specific image directory. If it

        # doesn't exist, create it.

        if [[ ! -d $IMG ]];then 

            mkdir -p $IMG

        fi

        # Define directory to store release-specific tar.gz files. 

        TGZ=$ACTIONVAL/$VERSION/Tgz

        # Check existence of release-specific tar.gz directory. If

        # it doesn't exist, create it.

        if [[ ! -d $TGZ ]];then 

            mkdir -p $TGZ

        fi

        # Move into working directory.

        pushd $TGZ > /dev/null

        for RESOLUTION in $RESOLUTIONS;do

            # Check background existence for specified resolution. If

            # the background resolution doesn't exist, skip it and

            # continue with the next resolution in the list.

            if [[ -f "$BGS/${RESOLUTION}-final.png" ]];then

                cli_printMessage "$TGZ/${TMP}-${RESOLUTION}-final.tar.gz" "AsCreatingLine"

            else

                continue

            fi

            # Create temporal directory.

            if [[ ! -d $TMP ]]; then

                mkdir $TMP

            fi

            # Copy display manager theme files into temporal

            # directory.

            cp $SYMBOL	         		            $TMP/centos-symbol.png

            cp $IMG/release.png                     $TMP/centos-release.png

            cp $IMG/screenshot.png                  $TMP/screenshot.png

            cp $BGS/${RESOLUTION}-final.png         $TMP/background.png

            if [[ $DM == 'GNOME' ]];then

                cp $TPL/*.png                       $TMP/

            fi

            cp $TPL/GdmGreeterTheme.xml             $TMP/${TMP}.xml

            cp $TPL/GdmGreeterTheme.desktop         $TMP/

            # Translate markers from design model files.

            sed -i "s!=THEME=!${TMP}!g" \

                $TMP/GdmGreeterTheme.desktop \

                $TMP/${TMP}.xml

            # Create tar.gz file.

            tar -czf "${TMP}-${RESOLUTION}.tar.gz" $TMP

            # Remove temporal directory.

            rm -r $TMP

        done

        # Return to where we were initially.

        popd > /dev/null

        # Output division rule.

        cli_printMessage '-' 'AsSeparatorLine'

    done

}