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|
#! /bin/bash
#
# bin/render-cursor-image
# Part of ComixCursors, a desktop cursor theme.
#
# Copyright © 2010–2013 Ben Finney <ben+opendesktop@benfinney.id.au>
# Copyright © 2006–2013 Jens Luetkens <j.luetkens@limitland.de>
#
# This work 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 3 of the License, or
# (at your option) any later version.
#
# This work 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 work. If not, see <http://www.gnu.org/licenses/>.
# Generate a PNG cursor image from SVG source.
#
# Required tools:
# ImageMagick: http://www.imagemagick.org/
# librsvg: http://librsvg.sourceforge.net/
function show_usage_message {
cat <<_EOT_
Usage: $0 [options] <in name> <in file> <out file>
Generate a PNG cursor image from SVG source.
Take a simple SVG file, export it to PNG.
Options:
--help Show this help text, then exit.
--orientation <facing> Specify the orientation of this cursor.
--frame <frame num> Specify frame number of animated cursor.
--duration <duration> Duration (in milliseconds) for this frame.
_EOT_
}
# source the theme config file
THEMENAME="${THEMENAME:-Custom}"
configfile="ComixCursorsConfigs/${THEMENAME}.CONFIG"
source "${configfile}"
# don't do transparency post-processing by default
# used for ComixCursors but not for flatbedcursors
CURSORTRANS=0
# some initialisation before argument processing
orientation="RightHanded"
frame=0
# parse argument list
while [ "${1::1}" == "-" ] ; do
case "$1" in
--help)
show_usage_message
exit
;;
--orientation)
shift
orientation="$1"
;;
--frame)
shift
frame=$1
;;
--duration)
shift
duration=$1
;;
*)
printf "Unexpected option: %q\n" "$1" >&2
show_usage_message
exit 2
;;
esac
shift
done
if [ $# -lt 3 ] ; then
show_usage_message
exit 2
fi
NAME="$1"
infile="$2"
outfile="$3"
if [ $VERBOSE ] ; then
if [ "$frame" -lt 1 ]; then
echo "processing $NAME..."
else
echo "processing $NAME frame $frame..."
fi
fi
xcursor_config="${builddir}/${NAME}.conf"
# write the hotspot config file
hotspots_file="$(dirname $infile)/HOTSPOTS"
hotspot_name="$NAME"
hotspot=( $(grep "^$hotspot_name" "$hotspots_file") )
function reset_xcursor_config {
# Delete the config file if it exists.
local xcursor_config="$1"
local frame="$2"
if [ "$frame" -lt 2 ] ; then
if [ -e "${xcursor_config}" ] ; then
rm "${xcursor_config}"
fi
fi
}
function svg2png {
# Convert a single SVG image to PNG.
local infile="$1"
local outfile="$2"
local size=$3
# Write hotspots to config file.
hotx=$(echo "${hotspot[1]} * $size / 500" | bc)
hoty=$(echo "${hotspot[2]} * $size / 500" | bc)
if [ "$frame" -gt 0 ] ; then
echo "$size $hotx $hoty $outfile $duration" >> "${xcursor_config}"
else
echo "$size $hotx $hoty $outfile" >> "${xcursor_config}"
fi
# Render png image.
rsvg-convert --format png \
--dpi-x 72 --dpi-y 72 \
--width $size --height $size \
"$infile" > "$outfile"
}
# Render the cursor image/s.
xcursor_config="${builddir}/${NAME}.conf"
if [ ${MULTISIZE} ]; then
# Render multiple sizes combined cursors per default.
# Reset the config file (hotspots).
reset_xcursor_config "$xcursor_config" "$frame"
# Render multiple cursor sizes.
for SIZENAMES in ${SIZES[@]} ; do
SIZENAME=${SIZENAMES%%=*}
SIZE=${SIZENAMES##*=}
# Render the cursor image.
svg2png "$infile" "${outfile%.*}.${SIZE}.png" "${SIZE}"
done
else
# Render single sized cursors.#
export CURSORSIZE="${CURSORSIZE:-32}"
# Reset the config file (hotspots).
reset_xcursor_config "$xcursor_config" "$frame" "${CURSORSIZE}"
# Render the cursor image.
svg2png "$infile" "${outfile%.*}.${SIZE}.png" "${CURSORSIZE}"
fi
|
