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#!/usr/bin/env python3
# Build the ttx cairo svg test fonts from svg files
# The svg files use the naming convention
# <font-name>.<char>.<test-name>.svg
# eg "circle.A.cx_cy_r.svg"
#
# <font-name> is use to create the name of the ttx font.
# <char> is a ascii hex character (uppercase) that the font fill map to the SVG description.
# <test-name> is a descriptive name of the SVG file and is not used to build the font…
#
# This script looks for all files matching the above pattern and
# creates one ttx font for each unique <font-name>. Each font will
# contain up to 16 characters. The SVG description of each character
# and the character that maps to the SVG description is obtained from
# the SVG file beginning with <font-name>.<char>.
import argparse
import os
import re
import sys
import xml.dom.minidom
TEMPLATE_FILE="svg-font-template.ttx"
glyph_names = {
'0': 'zero',
'1': 'one',
'2': 'two',
'3': 'three',
'4': 'four',
'5': 'five',
'6': 'six',
'7': 'seven',
'8': 'eight',
'9': 'nine',
'A': 'A',
'B': 'B',
'C': 'C',
'D': 'D',
'E': 'E',
'F': 'F'
}
# files is list of (char, filename)
def build_font(font_name, files, in_dir, out_dir, no_reformat):
name = "cairo-svg-test-" + font_name
doc = xml.dom.minidom.parse(os.path.join(in_dir, TEMPLATE_FILE))
glyph_id = 1
text_nl = doc.createTextNode('\n\n')
for f in sorted(files):
glyph_name = glyph_names[f[0]]
glyph_order = doc.getElementsByTagName('GlyphOrder')[0]
glyph_id_elem = doc.createElement('GlyphID')
glyph_id_elem.setAttribute('id', str(glyph_id))
glyph_id_elem.setAttribute('name', glyph_name)
glyph_order.appendChild(glyph_id_elem)
glyph_order.appendChild(text_nl)
hmtx = doc.getElementsByTagName('hmtx')[0]
mtx = doc.createElement('mtx')
mtx.setAttribute('name', glyph_name)
mtx.setAttribute('width', '1100')
mtx.setAttribute('lsb', '0')
hmtx.appendChild(mtx)
cmap_format = doc.getElementsByTagName('cmap_format_4')[0]
map = doc.createElement('map')
map.setAttribute('code', hex(ord(f[0])))
map.setAttribute('name', glyph_name)
cmap_format.appendChild(map)
glyf = doc.getElementsByTagName('glyf')[0]
tt_glyph = doc.createElement('TTGlyph')
tt_glyph.setAttribute('name', glyph_name)
glyf.appendChild(tt_glyph)
contour = doc.createElement('contour')
tt_glyph.appendChild(contour)
pt = doc.createElement('pt')
pt.setAttribute('x', "0")
pt.setAttribute('y', "0")
pt.setAttribute('on', "1")
contour.appendChild(pt)
pt = doc.createElement('pt')
pt.setAttribute('x', "0")
pt.setAttribute('y', "1000")
pt.setAttribute('on', "1")
contour.appendChild(pt)
pt = doc.createElement('pt')
pt.setAttribute('x', "1000")
pt.setAttribute('y', "1000")
pt.setAttribute('on', "1")
contour.appendChild(pt)
pt = doc.createElement('pt')
pt.setAttribute('x', "1000")
pt.setAttribute('y', "0")
pt.setAttribute('on', "1")
contour.appendChild(pt)
instructions = doc.createElement('instructions')
tt_glyph.appendChild(instructions)
svg = doc.getElementsByTagName('SVG')[0]
svgdoc = doc.createElement('svgDoc')
svgdoc.setAttribute('startGlyphID', str(glyph_id))
svgdoc.setAttribute('endGlyphID', str(glyph_id))
with open(os.path.join(in_dir, f[1]), 'r') as svg_file:
svg_data = svg_file.read()
cdata = doc.createCDATASection(svg_data)
svgdoc.appendChild(cdata)
svg.appendChild(svgdoc)
glyph_id += 1
name_record = doc.getElementsByTagName('namerecord')[0]
name_record.firstChild.replaceWholeText(name.replace("-", " ").title())
name_record = doc.getElementsByTagName('namerecord')[2]
name_record.firstChild.replaceWholeText(name.replace("-", " ").title() + " Regular")
ttx_filename = os.path.join(out_dir, name + '.ttx')
ttf_filename = os.path.join(out_dir, name + '.ttf')
with open(ttx_filename, 'w') as ttx_file:
doc.writexml(ttx_file)
if not no_reformat:
# Convert to ttf and back to ttx. This reformats the ttx file
# which allows better quality diffs.
if os.path.exists(ttf_filename):
os.remove(ttf_filename)
os.system("ttx " + ttx_filename)
os.remove(ttx_filename)
os.system("ttx " + ttf_filename)
os.remove(ttf_filename)
def build_file_list(in_dir):
dict = {}
regex_prog = re.compile(r"([^\.]+)\.(.)\.[^\.]+\.svg", re.ASCII)
files = os.listdir(in_dir)
for f in files:
match = regex_prog.fullmatch(f)
if match:
fontname = match.group(1)
character = match.group(2)
if (fontname not in dict):
dict[fontname] = [(character, f)];
else:
dict[fontname].append((character, f))
return dict
if __name__=='__main__':
parser = argparse.ArgumentParser(description='Build ttx fonts.')
parser.add_argument("-i", nargs=1, metavar="indir", default=["."], help="Input directory")
parser.add_argument("-o", nargs=1, metavar="outdir", default=["."], help="Output directory")
parser.add_argument("-n", action='store_true', help="Don't reformat the output.")
args = parser.parse_args()
in_dir = args.i[0]
out_dir = args.o[0]
no_reformat = args.n
file_list = build_file_list(in_dir)
font_name = None
for key, value in file_list.items():
build_font(key, value, in_dir, out_dir, no_reformat)
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