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#!/bin/bash
#
# creates attribute icons in one resolution only
require () {
hash $1 2>&- || { echo >&2 "I require $1 but it's not installed. Aborting."; exit 1; }
}
require optipng
#part of ImageMagick package
require convert
#part of ImageMagick package
require composite
require sed
# directory for icons
ICONDIR="./drawable-mdpi"
# size of the image itself (inside border)
IMGSIZE=32
# size of the whole icon
ICONSIZE=48
# distance of border from edge of icon
BDIST=2
# thickness of border
BSTROKE=2
# size of the round edges
BROUND=8
# color of the border
FCOL=white
# background color of the icon
BCOL=black
# thickness of the strikethru bar
SSTROKE=5
# color of the strikethru bar
SCOL=\#c00000
# file name of strike thru bar
SFNAME="$ICONDIR/attribute__strikethru.png"
#calculated values
BNDIST=$(( ${ICONSIZE} - ${BDIST} ))
res=48
# create output directory if missing
[ -d $ICONDIR ] || mkdir $ICONDIR
# create border
echo "drawing border"
convert -size ${ICONSIZE}x${ICONSIZE} xc:none -fill ${BCOL} -strokewidth 1 \
-draw "roundrectangle ${BDIST},${BDIST} ${BNDIST},${BNDIST} ${BROUND},${BROUND}" \
-strokewidth ${BSTROKE} -stroke ${FCOL} \
-draw "roundrectangle ${BDIST},${BDIST} ${BNDIST},${BNDIST} ${BROUND},${BROUND}" \
border.png
# create strike-thru bar as overlay for _no images
echo "drawing ${SFNAME}"
convert -size ${ICONSIZE}x${ICONSIZE} xc:none -fill ${BCOL} -strokewidth 1 \
-draw "roundrectangle ${BDIST},${BDIST} ${BNDIST},${BNDIST} ${BROUND},${BROUND}" \
mask1.png
convert -size ${ICONSIZE}x${ICONSIZE} xc:none -fill none -strokewidth ${BSTROKE} -stroke ${FCOL} \
-draw "roundrectangle ${BDIST},${BDIST} ${BNDIST},${BNDIST} ${BROUND},${BROUND}" \
mask2.png
convert -size ${ICONSIZE}x${ICONSIZE} xc:none -stroke "${SCOL}" -strokewidth ${SSTROKE} \
-draw "line 0,0 ${ICONSIZE},${ICONSIZE}" mask1.png -compose DstIn -composite tmp.png
convert tmp.png mask2.png -compose DstOut -composite -depth 8 ${SFNAME}
optipng -quiet ${SFNAME}
if [ $# -gt 0 ]; then
svgs="$@"
else
svgs="svgs/*.svg"
fi
for s in $svgs; do
n=$ICONDIR/attribute_`basename "$s" | sed "s/\.svg//"`
# don't draw icons if svg is older than icon
[ -f "${n}.png" ] && [ "$s" -ot "${n}.png" ] && continue
echo "drawing $n"
# draw icons
convert -density 200 -background none "$s" -resize ${IMGSIZE}x${IMGSIZE} tmp.png
composite -gravity center tmp.png border.png -depth 8 "${n}.png"
optipng -quiet "${n}.png"
done
rm tmp.png border.png mask1.png mask2.png
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