Blame Scripts/Functions/Render/Svg/svg_convertPngToDm.sh

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#!/bin/bash
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#
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# svg_convertPngToDm.sh -- This function standardize production of
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# display managers (e.g., Gdm and Kdm). This function copies all files
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# needed into a temporal directory, realize expansion of translation
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# markers and packs all the files into a tar.gz package that is used
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# for installation. This function must be used as last-rendition
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# action for Gdm and Kdm directory specific base-rendition actions.
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#
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# Copyright (C) 2009, 2010, 2011 The CentOS Artwork SIG
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or (at
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# your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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#
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# ----------------------------------------------------------------------
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# $Id$
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# ----------------------------------------------------------------------
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function svg_convertPngToDm {
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    # Print separator line.
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    cli_printMessage '-' --as-separator-line
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    # Initialize source and destination local variables.
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    local SRC=''
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    local DST=''
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    # Initialize display manager type.
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    local DM=$(render_getConfigOption "${ACTION}" '2')
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    # Initialize screen resolutions used by display manager theme.
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    # These are the different screen resolutions a display manager
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    # theme is built for. The amount of screen resolution a display
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    # manager theme can be built for is limited to the amount of
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    # background files provided by the artistic motif used to build
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    # the display manager theme.
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    local RESOLUTION=''
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    local RESOLUTIONS=$(render_getConfigOption "${ACTION}" '3')
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    # Verify screen resolutions. We cannot produce display manager
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    # theme if no screen resolution has been specified.
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    if [[ "$RESOLUTIONS" == '' ]];then
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        cli_printMessage "`gettext "There is no resolution information to process."`" --as-error-line
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    fi
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    # Initialize theme information we are going to build the display
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    # manager theme for.
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    local THEME=$(cli_getPathComponent $ACTIONVAL --motif)
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    local THEME_NAME=$(cli_getPathComponent $ACTIONVAL --motif-name)
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    # Initialize temporal directory where we collect all files needed
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    # in order to create the tar.gz file. This intermediate step is
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    # also needed in order to expand translation markers from XML and
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    # Desktop definitions.
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    local TMPDIR=$(cli_getTemporalFile 'dm')
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    # Initialize source location for brands. This is the place where
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    # brand information, needed to build the display manager theme, is
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    # retrived from.
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    local BRANDS=$(cli_getRepoTLDir)/Identity/Images/Brands
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    # Initialize source location for artistic motif's backgrounds.
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    # This is the place where background information needed to ubild
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    # the display manager theme is retrived from. 
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    local BGS=$(cli_getRepoTLDir)/Identity/Images/Themes/${THEME}/Backgrounds/Img/Png
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    # Initialize file variables. File variables are used build and
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    # process the file relation between source and target locations. 
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    local FILE=''
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    local FILES=''
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    # Define file relation between source and target locations, based
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    # on whether we are producing GDM or KDM. Use the colon character
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    # (`:') as separator; on the left side we put the file's source
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    # location and in the right side the file's target location.
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    # Presently, both GDM and KDM are very similar on files with the
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    # exception that GDM does use icons near actions buttons (e.g.,
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    # shutdown, reboot, session, language) and KDM doesn't.
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    case ${DM} in
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        Gdm )
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            FILES="\
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            ${BRANDS}/Symbols/48/centos.png:centos-symbol.png
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            ${OUTPUT}/release.png:centos-release.png
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            ${OUTPUT}/screenshot.png:screenshot.png
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            $(dirname $TEMPLATE)/GdmGreeterTheme.xml:${THEME_NAME}.xml
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            $(dirname $TEMPLATE)/GdmGreeterTheme.desktop:GdmGreeterTheme.desktop
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            $(dirname $TEMPLATE)/icon-language.png:icon-language.png
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            $(dirname $TEMPLATE)/icon-reboot.png:icon-reboot.png
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            $(dirname $TEMPLATE)/icon-session.png:icon-session.png
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            $(dirname $TEMPLATE)/icon-shutdown.png:icon-shutdown.png
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            "
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            ;;
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        Kdm )
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            FILES="\
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            ${BRANDS}/Symbols/48/centos.png:centos-symbol.png
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            ${OUTPUT}/release.png:centos-release.png
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            ${OUTPUT}/screenshot.png:screenshot.png
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            $(dirname $TEMPLATE)/GdmGreeterTheme.xml:${THEME_NAME}.xml
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            $(dirname $TEMPLATE)/GdmGreeterTheme.desktop:GdmGreeterTheme.desktop
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            "
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            ;;
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        * )
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            cli_printMessage "`eval_gettext "The \\\"\\\$DM\\\" display manager is not supported yet."`" --as-error-line
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            ;;
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    esac
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    for FILE in $FILES;do
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        # Define source location.
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        SRC=$(echo $FILE | cut -d: -f1)
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        # Define target location.
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        DST=${TMPDIR}/${THEME_NAME}/$(echo $FILE | cut -d: -f2)
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        # Verify source files.
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        cli_checkFiles $SRC
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        # Verify parent directory for target file.
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        if [[ ! -d $(dirname $DST) ]];then
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            mkdir -p $(dirname $DST)
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        fi
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        # Copy files from source to target location.
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        cp ${SRC} ${DST}
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        # Expand translation markers.
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        if [[ ${DST} =~ "\.(xml|desktop)$"  ]];then
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            cli_expandTMarkers "${DST}"
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        fi
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    done
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    # Move into temporal directory.
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    pushd $TMPDIR > /dev/null
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    for RESOLUTION in $RESOLUTIONS;do
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        # Verify background information. If it doesn't exist go on
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        # with the next one in the list.
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        if [[ ! -f $BGS/${RESOLUTION}-final.png ]];then
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            continue
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        fi
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        # Print action message.
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        if [[ -f ${RESOLUTION}.tar.gz ]];then
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            cli_printMessage "${OUTPUT}/${RESOLUTION}.tar.gz" --as-updating-line
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        else
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            cli_printMessage "${OUTPUT}/${RESOLUTION}.tar.gz" --as-creating-line
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        fi
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        # Copy background information.
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        cp $BGS/${RESOLUTION}-final.png ${THEME_NAME}/background.png
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        # Create tar.gz file.
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        tar -czf ${RESOLUTION}.tar.gz ${THEME_NAME}
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        # Move from temporal directory to its final location.
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        mv ${RESOLUTION}.tar.gz ${OUTPUT}
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    done
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    # Return to where we were initially.
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    popd > /dev/null
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    # Remove temporal directory.
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    rm -r ${TMPDIR}
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}