def get(self, fontname):
self.response.headers['Access-Control-Allow-Origin'] = '*'
bandwidth = self.request.headers.get('X-TachyFont-bandwidth', '0')
self.response.headers['Content-Type'] = 'text/plain'
self.response.headers['Content-Type'] = 'text/richtext'
basename = fontname.split('/')[0]
zip_path = fontname_to_zipfile(basename)
zf = zipfile.ZipFile(zip_path, 'r')
# base = zf.open('base', 'r')
# display_file(base)
base = zf.open('base', 'r')
bandwidth_limited_write(base, self.response.out, bandwidth, True)
def get(self, fontname):
self.response.headers['Access-Control-Allow-Origin'] = '*'
bandwidth = self.request.headers.get('X-TachyFont-bandwidth', '0')
self.response.headers['Content-Type'] = 'text/plain'
self.response.headers['Content-Type'] = 'text/richtext'
parts = fontname.split('/')
family = parts[0]
weight = parts[1]
zip_path = fontname_to_zipfile(family, weight)
zf = zipfile.ZipFile(zip_path, 'r')
# base = zf.open('base', 'r')
# display_file(base)
base = zf.open('base', 'r')
bandwidth_limited_write(base, self.response.out, bandwidth, True)
def prepare_bundle(request, major, minor):
"""Parse requests, then prepares response bundle for glyphs.
Args:
request: object, the request object.
Returns:
string: the glyph and metadata
"""
glyph_request = _parse_json(request.body)
family = glyph_request['name']
weight = glyph_request['weight']
zip_path = fontname_to_zipfile(family, weight)
codepoints = glyph_request['arr']
elapsed_time('prepare_bundle for {0} characters'.format(len(codepoints)),
True)
zf = zipfile.ZipFile(zip_path, 'r')
cp_file = zf.open('codepoints', 'r')
gid_file = zf.open('gids', 'r')
cmap = _build_cmap(cp_file, gid_file)
# Make these seekable.
cidx_file = StringIO(zf.open('closure_idx', 'r').read())
cdata_file = StringIO(zf.open('closure_data', 'r').read())
closure_reader = ClosureReader(cidx_file, cdata_file)
gids = set()
for code in codepoints:
if code in cmap:
gids.update(closure_reader.read(cmap[code]))
# for _code in codepoints:
# if _code in cmap:
# _gid = cmap[_code]
# _closure_gids = closure_reader.read(cmap[_code])
# print " 0x%05x (%d): %s" % (_code, _code, tuple(_closure_gids))
# else:
# print "code 0x%05x not in the font" % (_code)
closure_reader.close()
fingerprint_str = zf.open('sha1_fingerprint').read()
if len(fingerprint_str) != 40:
raise
fingerprint = a2b_hex(fingerprint_str)
elapsed_time('gather glyph info')
glyph_info_file = zf.open('glyph_table', 'r')
glyph_info = bytearray(glyph_info_file.read()) # Glyph meta data.
elapsed_time('read glyph table ({0} bytes)'.format(len(glyph_info)))
data = zf.open('glyph_data', 'r')
data_bytes = bytearray(data.read())
elapsed_time('read glyph data ({0} bytes)'.format(len(data_bytes)))
(glyf_table, has_hmtx, has_vmtx, has_cff, header_size,
entry_size) = (_parse_glyf_table(glyph_info))
mtx_count = has_hmtx + (has_vmtx >> 1)
# Assemble the flag bits.
flag_mtx = has_hmtx | has_vmtx | has_cff
elapsed_time('open & parse glyph table')
bundle_header = 'BSAC'
bundle_header += struct.pack('>BBBB', major, minor, 0, 0)
bundle_header += fingerprint
bundle_header += struct.pack('>HH', len(gids), flag_mtx)
bundle_length = len(bundle_header)
bundle_length += len(gids) * entry_size
# Pre-flight to get the length
for gid in gids:
assert gid < len(glyf_table)
bundle_length += glyf_table[gid][mtx_count +
2] # + 2 to get past glyph gid
bundle_bytes = bytearray(bundle_length)
bundle_pos = 0
length = len(bundle_header)
bundle_bytes[bundle_pos:bundle_pos + length] = bundle_header
bundle_pos += length
elapsed_time('calc bundle length')
if has_cff:
delta = -1 # What does -1 mean?
else:
delta = 0
# Copy in the data from glyph_info and data_bytes
for gid in sorted(gids):
entry_offset = header_size + gid * entry_size
bundle_bytes[bundle_pos:bundle_pos +
entry_size] = (glyph_info[entry_offset:entry_offset +
entry_size])
bundle_pos += entry_size
data_offset = glyf_table[gid][mtx_count + 1] + delta
data_size = glyf_table[gid][mtx_count + 2]
bundle_bytes[bundle_pos:bundle_pos +
data_size] = (data_bytes[data_offset:data_offset +
data_size])
bundle_pos += data_size
elapsed_time('build bundle')
zf.close()
#print "bundle bytes"
#display_bytes(bundle_bytes)
elapsed_time('close files')
return str(bundle_bytes)
def prepare_bundle(request, major, minor):
"""Parse requests, then prepares response bundle for glyphs.
Args:
request: object, the request object.
Returns:
string: the glyph and metadata
"""
glyph_request = _parse_json(request.body)
family = glyph_request['name']
weight = glyph_request['weight']
zip_path = fontname_to_zipfile(family, weight)
codepoints = glyph_request['arr']
elapsed_time('prepare_bundle for {0} characters'.format(len(codepoints)),
True)
zf = zipfile.ZipFile(zip_path, 'r')
cp_file = zf.open('codepoints', 'r')
gid_file = zf.open('gids', 'r')
cmap = _build_cmap(cp_file, gid_file)
# Make these seekable.
cidx_file = StringIO(zf.open('closure_idx', 'r').read())
cdata_file = StringIO(zf.open('closure_data', 'r').read())
closure_reader = ClosureReader(cidx_file, cdata_file)
gids = set()
for code in codepoints:
if code in cmap:
gids.update(closure_reader.read(cmap[code]))
# for _code in codepoints:
# if _code in cmap:
# _gid = cmap[_code]
# _closure_gids = closure_reader.read(cmap[_code])
# print " 0x%05x (%d): %s" % (_code, _code, tuple(_closure_gids))
# else:
# print "code 0x%05x not in the font" % (_code)
closure_reader.close()
fingerprint_str = zf.open('sha1_fingerprint').read()
if len(fingerprint_str) != 40:
raise
fingerprint = a2b_hex(fingerprint_str)
elapsed_time('gather glyph info')
glyph_info_file = zf.open('glyph_table', 'r')
glyph_info = bytearray(glyph_info_file.read()) # Glyph meta data.
elapsed_time('read glyph table ({0} bytes)'.format(len(glyph_info)))
data = zf.open('glyph_data', 'r')
data_bytes = bytearray(data.read())
elapsed_time('read glyph data ({0} bytes)'.format(len(data_bytes)))
(glyf_table, has_hmtx, has_vmtx, has_cff, header_size, entry_size) = (
_parse_glyf_table(glyph_info))
mtx_count = has_hmtx + (has_vmtx >> 1)
# Assemble the flag bits.
flag_mtx = has_hmtx | has_vmtx | has_cff
elapsed_time('open & parse glyph table')
bundle_header = 'BSAC'
bundle_header += struct.pack('>BBBB', major, minor, 0, 0)
bundle_header += fingerprint
bundle_header += struct.pack('>HH', len(gids), flag_mtx)
bundle_length = len(bundle_header)
bundle_length += len(gids) * entry_size
# Pre-flight to get the length
for gid in gids:
assert gid < len(glyf_table)
bundle_length += glyf_table[gid][mtx_count + 2] # + 2 to get past glyph gid
bundle_bytes = bytearray(bundle_length)
bundle_pos = 0
length = len(bundle_header)
bundle_bytes[bundle_pos:bundle_pos+length] = bundle_header
bundle_pos += length
elapsed_time('calc bundle length')
if has_cff:
delta = -1 # What does -1 mean?
else:
delta = 0
# Copy in the data from glyph_info and data_bytes
for gid in sorted(gids):
entry_offset = header_size + gid * entry_size
bundle_bytes[bundle_pos:bundle_pos + entry_size] = (
glyph_info[entry_offset:entry_offset + entry_size])
bundle_pos += entry_size
data_offset = glyf_table[gid][mtx_count + 1] + delta
data_size = glyf_table[gid][mtx_count + 2]
bundle_bytes[bundle_pos:bundle_pos + data_size] = (
data_bytes[data_offset:data_offset + data_size])
bundle_pos += data_size
elapsed_time('build bundle')
zf.close()
#print "bundle bytes"
#display_bytes(bundle_bytes)
elapsed_time('close files')
return str(bundle_bytes)
