Add script to generate fonts.

Credit goes to @VanessaE.

util/signs-chargen.sh

@@ -0,0 +1,92 @@
+#!/bin/bash
+
+# Simple font generator for homedecor signs mod
+# By Vanessa Ezekowitz
+#
+# License:  WTFPL
+
+# Usage:
+#
+# signs-chargen.sh fontname fontheight [top-excess bottom-excess left-excess right-excess]
+#
+# font is the standard X11 font spec, in quotes, such as:
+# "-*-helvetica-*-r-*-*-12-*-*-*-*-*-*-*"
+#
+# Note that top+bottom excess can easily exceed the specified font size.  The excess values
+# must all be specified if any are.
+
+textfont=$1
+fontheight=$2
+texcess=$3
+bexcess=$4
+lexcess=$5
+rexcess=$6
+
+pagesize="-size \"$((fontheight*2))x$((fontheight*4))\" xc:none"
+cmdbase="convert $pagesize -font \"$textfont\" -gravity North -pointsize $fontheight "
+trimargs1="+repage -gravity West -background red -splice 1x0 -background green -splice 1x0 -trim  +repage -chop 1x0"
+trimargs2="+repage -gravity East -background red -splice 1x0 -background green -splice 1x0 -trim  +repage -chop 1x0"
+
+choptopbottom="-gravity North -chop 0x"$texcess" -gravity South -chop 0x"$bexcess
+chopsides="-gravity West -chop "$lexcess"x0 -gravity East -chop "$rexcess"x0"
+
+
+# numbers require a slightly different command:
+
+for charcode in `seq 48 57`; do
+	char=$(printf \\$(printf "%o" $charcode))
+	hexcode=$(echo -n "$char" |xxd -ps)
+	command=$cmdbase" -annotate 0 \"$char\" hdf_"$hexcode".png"
+	echo "$char : $hexcode"
+	eval $command
+done
+
+# then the rest of the ascii set, except there are a few we have to skip
+
+for charcode in 32 `seq 35 47` `seq 58 91` 93 94 95 `seq 97 126`; do
+	char=$(printf \\$(printf "%o" $charcode))
+	hexcode=$(echo -n "$char" |xxd -ps)
+	command="$cmdbase -draw \"text 0,0 $char\" hdf_"$hexcode".png"
+	echo "$char : $hexcode"
+	eval "$command"
+done
+
+# those special cases are ! " * \ `
+
+command="$cmdbase -annotate 0 \! hdf_21.png"
+echo "! : 21"
+eval $command
+
+command="$cmdbase -annotate 0 \\\" hdf_22.png"
+echo "\" : 22"
+eval $command
+
+command="$cmdbase -annotate 0 \* hdf_2a.png"
+echo "* : 2a"
+eval $command
+
+command="$cmdbase -annotate 0 \\\\\\\\ hdf_5c.png"
+echo "\\ : 5c"
+eval $command
+
+command="$cmdbase -annotate 0 \\\` hdf_60.png"
+echo "\` : 60"
+eval $command
+
+if [ -z "$trimargs1" ] ; then 
+	for i in `ls *.png`; do
+		mogrify +repage $choptopbottom $chopsides $i
+	done
+else
+	for i in `ls *.png`; do
+		convert $i $trimargs1 XXXXX$i
+		mv XXXXX$i $i
+		convert $i $trimargs2 XXXXX$i
+		mv XXXXX$i $i
+		convert $i $choptopbottom $chopsides XXXXX$i
+		mv XXXXX$i $i
+	done
+fi
+
+convert -size $(((fontheight/2)+1))x$((fontheight*4)) xc:none $choptopbottom $chopsides hdf_20.png
+