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#!/bin/bash -e
# Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
#
# Render a text file into a bitmap. Files named '*.txt' are small font, those
# nameed '*.TXT' are large font.
#
# Image parameters
bg='#607c91'
bluecolor='#9ccaec'
bluefont="Helvetica-Narrow"
bluepointsize=19
whitefont="Helvetica-Narrow"
whitepointsize=30
tmpdir=$(mktemp -d /tmp/tmp.bmp.XXXXXX)
trap "rm -rf $tmpdir" EXIT
label_file="${tmpdir}/label.txt"
for txtfile in $*; do
bmpfile="${txtfile%.*}".bmp
# Must strip off the leading U+FEFF byte order mark (bytes 0xEF,0xBB,0xBF) of
# each file before I can pass it to imagemagick. Chomp any leading/trailing
# whitespace too.
perl -p -e 'BEGIN{ $/=undef; }' \
-e 'if (substr($_,0,3) eq "\xef\xbb\xbf") { substr($_, 0, 3) = ""; }' \
-e 's/^\s+//s;' -e 's/\s+$//s;' \
"$txtfile" > "$label_file"
case "$txtfile" in
*.txt)
convert \
-background "$bg" -fill "$bluecolor" \
-font "$bluefont" -pointsize "$bluepointsize" \
-bordercolor "$bg" -border 0x1 -gravity Center \
label:'@'"$label_file" \
-colors 256 -compress none -alpha off \
"$bmpfile"
echo "wrote $bmpfile"
;;
*.TXT)
convert \
-background "$bg" -fill "white" \
-font "$whitefont" -pointsize "$whitepointsize" \
-bordercolor "$bg" -border 0x10 -gravity Center \
label:'@'"$label_file" \
-colors 256 -compress none -alpha off \
"$bmpfile"
echo "wrote $bmpfile"
;;
*)
echo "Ignoring $txtfile. Filname should end with .txt or .TXT"
;;
esac
done
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