1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
|
"""ttLib.macUtils.py -- Various Mac-specific stuff."""
from __future__ import print_function, division, absolute_import
from fontTools.misc.py23 import *
import sys
import os
if sys.platform not in ("mac", "darwin"):
raise ImportError("This module is Mac-only!")
try:
from Carbon import Res
except ImportError:
import Res
def MyOpenResFile(path):
mode = 1 # read only
try:
resref = Res.FSOpenResFile(path, mode)
except Res.Error:
# try data fork
resref = Res.FSOpenResourceFile(path, unicode(), mode)
return resref
def getSFNTResIndices(path):
"""Determine whether a file has a resource fork or not."""
try:
resref = MyOpenResFile(path)
except Res.Error:
return []
Res.UseResFile(resref)
numSFNTs = Res.Count1Resources('sfnt')
Res.CloseResFile(resref)
return list(range(1, numSFNTs + 1))
def openTTFonts(path):
"""Given a pathname, return a list of TTFont objects. In the case
of a flat TTF/OTF file, the list will contain just one font object;
but in the case of a Mac font suitcase it will contain as many
font objects as there are sfnt resources in the file.
"""
from fontTools import ttLib
fonts = []
sfnts = getSFNTResIndices(path)
if not sfnts:
fonts.append(ttLib.TTFont(path))
else:
for index in sfnts:
fonts.append(ttLib.TTFont(path, index))
if not fonts:
raise ttLib.TTLibError("no fonts found in file '%s'" % path)
return fonts
class SFNTResourceReader(object):
"""Simple (Mac-only) read-only file wrapper for 'sfnt' resources."""
def __init__(self, path, res_name_or_index):
resref = MyOpenResFile(path)
Res.UseResFile(resref)
if isinstance(res_name_or_index, basestring):
res = Res.Get1NamedResource('sfnt', res_name_or_index)
else:
res = Res.Get1IndResource('sfnt', res_name_or_index)
self.file = StringIO(res.data)
Res.CloseResFile(resref)
self.name = path
def __getattr__(self, attr):
# cheap inheritance
return getattr(self.file, attr)
class SFNTResourceWriter(object):
"""Simple (Mac-only) file wrapper for 'sfnt' resources."""
def __init__(self, path, ttFont, res_id=None):
self.file = StringIO()
self.name = path
self.closed = 0
fullname = ttFont['name'].getName(4, 1, 0) # Full name, mac, default encoding
familyname = ttFont['name'].getName(1, 1, 0) # Fam. name, mac, default encoding
psname = ttFont['name'].getName(6, 1, 0) # PostScript name, etc.
if fullname is None or fullname is None or psname is None:
from fontTools import ttLib
raise ttLib.TTLibError("can't make 'sfnt' resource, no Macintosh 'name' table found")
self.fullname = fullname.string
self.familyname = familyname.string
self.psname = psname.string
if self.familyname != self.psname[:len(self.familyname)]:
# ugh. force fam name to be the same as first part of ps name,
# fondLib otherwise barfs.
for i in range(min(len(self.psname), len(self.familyname))):
if self.familyname[i] != self.psname[i]:
break
self.familyname = self.psname[:i]
self.ttFont = ttFont
self.res_id = res_id
if os.path.exists(self.name):
os.remove(self.name)
# XXX datafork support
Res.FSpCreateResFile(self.name, 'DMOV', 'FFIL', 0)
self.resref = Res.FSOpenResFile(self.name, 3) # exclusive read/write permission
def close(self):
if self.closed:
return
Res.UseResFile(self.resref)
try:
res = Res.Get1NamedResource('sfnt', self.fullname)
except Res.Error:
pass
else:
res.RemoveResource()
res = Res.Resource(self.file.getvalue())
if self.res_id is None:
self.res_id = Res.Unique1ID('sfnt')
res.AddResource('sfnt', self.res_id, self.fullname)
res.ChangedResource()
self.createFond()
del self.ttFont
Res.CloseResFile(self.resref)
self.file.close()
self.closed = 1
def createFond(self):
fond_res = Res.Resource("")
fond_res.AddResource('FOND', self.res_id, self.fullname)
from fontTools import fondLib
fond = fondLib.FontFamily(fond_res, "w")
fond.ffFirstChar = 0
fond.ffLastChar = 255
fond.fondClass = 0
fond.fontAssoc = [(0, 0, self.res_id)]
fond.ffFlags = 20480 # XXX ???
fond.ffIntl = (0, 0)
fond.ffLeading = 0
fond.ffProperty = (0, 0, 0, 0, 0, 0, 0, 0, 0)
fond.ffVersion = 0
fond.glyphEncoding = {}
if self.familyname == self.psname:
fond.styleIndices = (1,) * 48 # uh-oh, fondLib is too dumb.
else:
fond.styleIndices = (2,) * 48
fond.styleStrings = []
fond.boundingBoxes = None
fond.ffFamID = self.res_id
fond.changed = 1
fond.glyphTableOffset = 0
fond.styleMappingReserved = 0
# calc:
scale = 4096 / self.ttFont['head'].unitsPerEm
fond.ffAscent = scale * self.ttFont['hhea'].ascent
fond.ffDescent = scale * self.ttFont['hhea'].descent
fond.ffWidMax = scale * self.ttFont['hhea'].advanceWidthMax
fond.ffFamilyName = self.familyname
fond.psNames = {0: self.psname}
fond.widthTables = {}
fond.kernTables = {}
cmap = self.ttFont['cmap'].getcmap(1, 0)
if cmap:
names = {}
for code, name in cmap.cmap.items():
names[name] = code
if 'kern' in self.ttFont:
kern = self.ttFont['kern'].getkern(0)
if kern:
fondkerning = []
for (left, right), value in kern.kernTable.items():
if left in names and right in names:
fondkerning.append((names[left], names[right], scale * value))
fondkerning.sort()
fond.kernTables = {0: fondkerning}
if 'hmtx' in self.ttFont:
hmtx = self.ttFont['hmtx']
fondwidths = [2048] * 256 + [0, 0] # default width, + plus two zeros.
for name, (width, lsb) in hmtx.metrics.items():
if name in names:
fondwidths[names[name]] = scale * width
fond.widthTables = {0: fondwidths}
fond.save()
def __del__(self):
if not self.closed:
self.close()
def __getattr__(self, attr):
# cheap inheritance
return getattr(self.file, attr)
|