Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 1 | #!/usr/bin/python |
Behdad Esfahbod | db6d2e9 | 2013-08-13 12:42:12 -0400 | [diff] [blame] | 2 | # |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 3 | # Python OpenType Layout Subsetter |
Behdad Esfahbod | db6d2e9 | 2013-08-13 12:42:12 -0400 | [diff] [blame] | 4 | # Later grown into a full OpenType subsetter... |
Behdad Esfahbod | 0fe6a51 | 2013-07-23 11:17:35 -0400 | [diff] [blame] | 5 | # |
| 6 | # Copyright 2013 Google, Inc. All Rights Reserved. |
| 7 | # |
| 8 | # Licensed under the Apache License, Version 2.0 (the "License"); |
| 9 | # you may not use this file except in compliance with the License. |
| 10 | # You may obtain a copy of the License at |
| 11 | # |
| 12 | # http://www.apache.org/licenses/LICENSE-2.0 |
| 13 | # |
| 14 | # Unless required by applicable law or agreed to in writing, software |
| 15 | # distributed under the License is distributed on an "AS IS" BASIS, |
| 16 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 17 | # See the License for the specific language governing permissions and |
| 18 | # limitations under the License. |
| 19 | # |
| 20 | # Google Author(s): Behdad Esfahbod |
| 21 | # |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 22 | |
Behdad Esfahbod | fa3bc5e | 2013-07-24 14:37:58 -0400 | [diff] [blame] | 23 | # Try running on PyPy |
| 24 | try: |
| 25 | import numpypy |
| 26 | except ImportError: |
| 27 | pass |
| 28 | |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 29 | import fontTools.ttx |
Behdad Esfahbod | 4cf7a80 | 2013-07-24 16:08:35 -0400 | [diff] [blame] | 30 | import struct |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 31 | |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 32 | |
Behdad Esfahbod | 02b9206 | 2013-07-21 18:40:59 -0400 | [diff] [blame] | 33 | def add_method (*clazzes): |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 34 | def wrapper(method): |
Behdad Esfahbod | 02b9206 | 2013-07-21 18:40:59 -0400 | [diff] [blame] | 35 | for clazz in clazzes: |
Behdad Esfahbod | c0d5959 | 2013-07-24 14:41:47 -0400 | [diff] [blame] | 36 | assert clazz.__name__ != 'DefaultTable', 'Oops, table class not found.' |
Behdad Esfahbod | 02b9206 | 2013-07-21 18:40:59 -0400 | [diff] [blame] | 37 | setattr (clazz, method.func_name, method) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 38 | return wrapper |
| 39 | |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 40 | def unique_sorted (l): |
Behdad Esfahbod | 2d9a096 | 2013-07-31 13:33:31 -0400 | [diff] [blame] | 41 | return sorted (set (l)) |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 42 | |
| 43 | |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 44 | @add_method(fontTools.ttLib.tables.otTables.Coverage) |
Behdad Esfahbod | 327dcc3 | 2013-07-31 13:50:51 -0400 | [diff] [blame] | 45 | def intersect (self, glyphs): |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 46 | "Returns ascending list of matching coverage values." |
| 47 | return [i for (i,g) in enumerate (self.glyphs) if g in glyphs] |
| 48 | |
| 49 | @add_method(fontTools.ttLib.tables.otTables.Coverage) |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 50 | def intersect_glyphs (self, glyphs): |
| 51 | "Returns set of intersecting glyphs." |
| 52 | return set (g for g in self.glyphs if g in glyphs) |
| 53 | |
| 54 | @add_method(fontTools.ttLib.tables.otTables.Coverage) |
Behdad Esfahbod | 327dcc3 | 2013-07-31 13:50:51 -0400 | [diff] [blame] | 55 | def subset (self, glyphs): |
Behdad Esfahbod | d821ea0 | 2013-07-23 10:50:43 -0400 | [diff] [blame] | 56 | "Returns ascending list of remaining coverage values." |
Behdad Esfahbod | 327dcc3 | 2013-07-31 13:50:51 -0400 | [diff] [blame] | 57 | indices = self.intersect (glyphs) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 58 | self.glyphs = [g for g in self.glyphs if g in glyphs] |
| 59 | return indices |
Behdad Esfahbod | d1d41bc | 2013-07-21 23:15:32 -0400 | [diff] [blame] | 60 | |
Behdad Esfahbod | 1437426 | 2013-08-08 22:26:49 -0400 | [diff] [blame] | 61 | @add_method(fontTools.ttLib.tables.otTables.Coverage) |
| 62 | def remap (self, coverage_map): |
| 63 | "Remaps coverage." |
| 64 | self.glyphs = [self.glyphs[i] for i in coverage_map] |
| 65 | |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 66 | @add_method(fontTools.ttLib.tables.otTables.ClassDef) |
Behdad Esfahbod | 327dcc3 | 2013-07-31 13:50:51 -0400 | [diff] [blame] | 67 | def intersect (self, glyphs): |
Behdad Esfahbod | e10803e | 2013-08-08 21:09:27 -0400 | [diff] [blame] | 68 | "Returns ascending list of matching class values." |
Behdad Esfahbod | a1e0f13 | 2013-08-08 21:12:45 -0400 | [diff] [blame] | 69 | return unique_sorted (([0] if any (g not in self.classDefs for g in glyphs) else []) + \ |
Behdad Esfahbod | dc0c483 | 2013-08-13 18:50:36 -0400 | [diff] [blame] | 70 | [v for g,v in self.classDefs.iteritems() if g in glyphs]) |
Behdad Esfahbod | b8d5588 | 2013-07-23 22:17:39 -0400 | [diff] [blame] | 71 | |
| 72 | @add_method(fontTools.ttLib.tables.otTables.ClassDef) |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 73 | def intersect_class (self, glyphs, klass): |
| 74 | "Returns set of glyphs matching class." |
Behdad Esfahbod | 0befd6b | 2013-08-05 22:47:14 -0400 | [diff] [blame] | 75 | if klass == 0: |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 76 | return set (g for g in glyphs if g not in self.classDefs) |
Behdad Esfahbod | dc0c483 | 2013-08-13 18:50:36 -0400 | [diff] [blame] | 77 | return set (g for g,v in self.classDefs.iteritems() if v == klass and g in glyphs) |
Behdad Esfahbod | b8d5588 | 2013-07-23 22:17:39 -0400 | [diff] [blame] | 78 | |
| 79 | @add_method(fontTools.ttLib.tables.otTables.ClassDef) |
Behdad Esfahbod | 327dcc3 | 2013-07-31 13:50:51 -0400 | [diff] [blame] | 80 | def subset (self, glyphs, remap=False): |
Behdad Esfahbod | a1e0f13 | 2013-08-08 21:12:45 -0400 | [diff] [blame] | 81 | "Returns ascending list of remaining classes." |
Behdad Esfahbod | dc0c483 | 2013-08-13 18:50:36 -0400 | [diff] [blame] | 82 | self.classDefs = {g:v for g,v in self.classDefs.iteritems() if g in glyphs} |
Behdad Esfahbod | a1e0f13 | 2013-08-08 21:12:45 -0400 | [diff] [blame] | 83 | # Note: while class 0 has the special meaning of "not matched", if no glyph will |
| 84 | # ever /not match/, we can optimize class 0 out too. |
| 85 | indices = unique_sorted (([0] if any (g not in self.classDefs for g in glyphs) else []) + \ |
Behdad Esfahbod | dc0c483 | 2013-08-13 18:50:36 -0400 | [diff] [blame] | 86 | self.classDefs.itervalues()) |
Behdad Esfahbod | de71dca | 2013-07-24 12:40:54 -0400 | [diff] [blame] | 87 | if remap: |
| 88 | self.remap (indices) |
| 89 | return indices |
Behdad Esfahbod | 4aa6ce3 | 2013-07-22 12:15:36 -0400 | [diff] [blame] | 90 | |
| 91 | @add_method(fontTools.ttLib.tables.otTables.ClassDef) |
| 92 | def remap (self, class_map): |
| 93 | "Remaps classes." |
Behdad Esfahbod | dc0c483 | 2013-08-13 18:50:36 -0400 | [diff] [blame] | 94 | self.classDefs = {g:class_map.index (v) for g,v in self.classDefs.iteritems()} |
Behdad Esfahbod | d1d41bc | 2013-07-21 23:15:32 -0400 | [diff] [blame] | 95 | |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 96 | @add_method(fontTools.ttLib.tables.otTables.SingleSubst) |
Behdad Esfahbod | 1d4fa13 | 2013-08-08 22:59:32 -0400 | [diff] [blame] | 97 | def closure_glyphs (self, s, cur_glyphs=None): |
| 98 | if cur_glyphs == None: cur_glyphs = s.glyphs |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 99 | if self.Format in [1, 2]: |
Behdad Esfahbod | dc0c483 | 2013-08-13 18:50:36 -0400 | [diff] [blame] | 100 | s.glyphs.update (v for g,v in self.mapping.iteritems() if g in cur_glyphs) |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 101 | else: |
| 102 | assert 0, "unknown format: %s" % self.Format |
| 103 | |
| 104 | @add_method(fontTools.ttLib.tables.otTables.SingleSubst) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 105 | def subset_glyphs (self, s): |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 106 | if self.Format in [1, 2]: |
Behdad Esfahbod | dc0c483 | 2013-08-13 18:50:36 -0400 | [diff] [blame] | 107 | self.mapping = {g:v for g,v in self.mapping.iteritems() if g in s.glyphs and v in s.glyphs} |
Behdad Esfahbod | 4027dd8 | 2013-07-23 10:56:04 -0400 | [diff] [blame] | 108 | return bool (self.mapping) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 109 | else: |
| 110 | assert 0, "unknown format: %s" % self.Format |
| 111 | |
| 112 | @add_method(fontTools.ttLib.tables.otTables.MultipleSubst) |
Behdad Esfahbod | 1d4fa13 | 2013-08-08 22:59:32 -0400 | [diff] [blame] | 113 | def closure_glyphs (self, s, cur_glyphs=None): |
| 114 | if cur_glyphs == None: cur_glyphs = s.glyphs |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 115 | if self.Format == 1: |
Behdad Esfahbod | 1d4fa13 | 2013-08-08 22:59:32 -0400 | [diff] [blame] | 116 | indices = self.Coverage.intersect (cur_glyphs) |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 117 | s.glyphs.update (*(self.Sequence[i].Substitute for i in indices)) |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 118 | else: |
| 119 | assert 0, "unknown format: %s" % self.Format |
| 120 | |
| 121 | @add_method(fontTools.ttLib.tables.otTables.MultipleSubst) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 122 | def subset_glyphs (self, s): |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 123 | if self.Format == 1: |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 124 | indices = self.Coverage.subset (s.glyphs) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 125 | self.Sequence = [self.Sequence[i] for i in indices] |
Behdad Esfahbod | 1437426 | 2013-08-08 22:26:49 -0400 | [diff] [blame] | 126 | # Now drop rules generating glyphs we don't want |
Behdad Esfahbod | 50cff38 | 2013-08-13 18:40:36 -0400 | [diff] [blame] | 127 | indices = [i for i,seq in enumerate (self.Sequence) |
Behdad Esfahbod | 1437426 | 2013-08-08 22:26:49 -0400 | [diff] [blame] | 128 | if all (sub in s.glyphs for sub in seq.Substitute)] |
| 129 | self.Sequence = [self.Sequence[i] for i in indices] |
| 130 | self.Coverage.remap (indices) |
Behdad Esfahbod | d1d41bc | 2013-07-21 23:15:32 -0400 | [diff] [blame] | 131 | self.SequenceCount = len (self.Sequence) |
Behdad Esfahbod | 4027dd8 | 2013-07-23 10:56:04 -0400 | [diff] [blame] | 132 | return bool (self.SequenceCount) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 133 | else: |
| 134 | assert 0, "unknown format: %s" % self.Format |
| 135 | |
| 136 | @add_method(fontTools.ttLib.tables.otTables.AlternateSubst) |
Behdad Esfahbod | 1d4fa13 | 2013-08-08 22:59:32 -0400 | [diff] [blame] | 137 | def closure_glyphs (self, s, cur_glyphs=None): |
| 138 | if cur_glyphs == None: cur_glyphs = s.glyphs |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 139 | if self.Format == 1: |
Behdad Esfahbod | dc0c483 | 2013-08-13 18:50:36 -0400 | [diff] [blame] | 140 | s.glyphs.update (*(vlist for g,vlist in self.alternates.iteritems() if g in cur_glyphs)) |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 141 | else: |
| 142 | assert 0, "unknown format: %s" % self.Format |
| 143 | |
| 144 | @add_method(fontTools.ttLib.tables.otTables.AlternateSubst) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 145 | def subset_glyphs (self, s): |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 146 | if self.Format == 1: |
Behdad Esfahbod | dc0c483 | 2013-08-13 18:50:36 -0400 | [diff] [blame] | 147 | self.alternates = {g:vlist for g,vlist in self.alternates.iteritems() |
Behdad Esfahbod | 1437426 | 2013-08-08 22:26:49 -0400 | [diff] [blame] | 148 | if g in s.glyphs and all (v in s.glyphs for v in vlist)} |
Behdad Esfahbod | 4027dd8 | 2013-07-23 10:56:04 -0400 | [diff] [blame] | 149 | return bool (self.alternates) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 150 | else: |
| 151 | assert 0, "unknown format: %s" % self.Format |
| 152 | |
| 153 | @add_method(fontTools.ttLib.tables.otTables.LigatureSubst) |
Behdad Esfahbod | 1d4fa13 | 2013-08-08 22:59:32 -0400 | [diff] [blame] | 154 | def closure_glyphs (self, s, cur_glyphs=None): |
| 155 | if cur_glyphs == None: cur_glyphs = s.glyphs |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 156 | if self.Format == 1: |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 157 | s.glyphs.update (*([seq.LigGlyph for seq in seqs if all(c in s.glyphs for c in seq.Component)] |
Behdad Esfahbod | dc0c483 | 2013-08-13 18:50:36 -0400 | [diff] [blame] | 158 | for g,seqs in self.ligatures.iteritems() if g in cur_glyphs)) |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 159 | else: |
| 160 | assert 0, "unknown format: %s" % self.Format |
| 161 | |
| 162 | @add_method(fontTools.ttLib.tables.otTables.LigatureSubst) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 163 | def subset_glyphs (self, s): |
Behdad Esfahbod | d1d41bc | 2013-07-21 23:15:32 -0400 | [diff] [blame] | 164 | if self.Format == 1: |
Behdad Esfahbod | dc0c483 | 2013-08-13 18:50:36 -0400 | [diff] [blame] | 165 | self.ligatures = {g:v for g,v in self.ligatures.iteritems() if g in s.glyphs} |
Behdad Esfahbod | 50cff38 | 2013-08-13 18:40:36 -0400 | [diff] [blame] | 166 | self.ligatures = {g:[seq for seq in seqs |
| 167 | if seq.LigGlyph in s.glyphs and |
| 168 | all (c in s.glyphs for c in seq.Component)] |
Behdad Esfahbod | dc0c483 | 2013-08-13 18:50:36 -0400 | [diff] [blame] | 169 | for g,seqs in self.ligatures.iteritems()} |
| 170 | self.ligatures = {g:v for g,v in self.ligatures.iteritems() if v} |
Behdad Esfahbod | 4027dd8 | 2013-07-23 10:56:04 -0400 | [diff] [blame] | 171 | return bool (self.ligatures) |
Behdad Esfahbod | d1d41bc | 2013-07-21 23:15:32 -0400 | [diff] [blame] | 172 | else: |
| 173 | assert 0, "unknown format: %s" % self.Format |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 174 | |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 175 | @add_method(fontTools.ttLib.tables.otTables.ReverseChainSingleSubst) |
Behdad Esfahbod | 1d4fa13 | 2013-08-08 22:59:32 -0400 | [diff] [blame] | 176 | def closure_glyphs (self, s, cur_glyphs=None): |
| 177 | if cur_glyphs == None: cur_glyphs = s.glyphs |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 178 | if self.Format == 1: |
Behdad Esfahbod | 1d4fa13 | 2013-08-08 22:59:32 -0400 | [diff] [blame] | 179 | indices = self.Coverage.intersect (cur_glyphs) |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 180 | if not indices or \ |
Behdad Esfahbod | 254442b | 2013-07-31 14:20:13 -0400 | [diff] [blame] | 181 | not all (c.intersect (s.glyphs) for c in self.LookAheadCoverage + self.BacktrackCoverage): |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 182 | return |
| 183 | s.glyphs.update (self.Substitute[i] for i in indices) |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 184 | else: |
| 185 | assert 0, "unknown format: %s" % self.Format |
| 186 | |
| 187 | @add_method(fontTools.ttLib.tables.otTables.ReverseChainSingleSubst) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 188 | def subset_glyphs (self, s): |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 189 | if self.Format == 1: |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 190 | indices = self.Coverage.subset (s.glyphs) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 191 | self.Substitute = [self.Substitute[i] for i in indices] |
Behdad Esfahbod | 1437426 | 2013-08-08 22:26:49 -0400 | [diff] [blame] | 192 | # Now drop rules generating glyphs we don't want |
Behdad Esfahbod | 50cff38 | 2013-08-13 18:40:36 -0400 | [diff] [blame] | 193 | indices = [i for i,sub in enumerate (self.Substitute) |
Behdad Esfahbod | 1437426 | 2013-08-08 22:26:49 -0400 | [diff] [blame] | 194 | if sub in s.glyphs] |
| 195 | self.Substitute = [self.Substitute[i] for i in indices] |
| 196 | self.Coverage.remap (indices) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 197 | self.GlyphCount = len (self.Substitute) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 198 | return bool (self.GlyphCount and all (c.subset (s.glyphs) for c in self.LookAheadCoverage + self.BacktrackCoverage)) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 199 | else: |
| 200 | assert 0, "unknown format: %s" % self.Format |
| 201 | |
| 202 | @add_method(fontTools.ttLib.tables.otTables.SinglePos) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 203 | def subset_glyphs (self, s): |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 204 | if self.Format == 1: |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 205 | return len (self.Coverage.subset (s.glyphs)) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 206 | elif self.Format == 2: |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 207 | indices = self.Coverage.subset (s.glyphs) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 208 | self.Value = [self.Value[i] for i in indices] |
| 209 | self.ValueCount = len (self.Value) |
Behdad Esfahbod | 4027dd8 | 2013-07-23 10:56:04 -0400 | [diff] [blame] | 210 | return bool (self.ValueCount) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 211 | else: |
| 212 | assert 0, "unknown format: %s" % self.Format |
| 213 | |
| 214 | @add_method(fontTools.ttLib.tables.otTables.PairPos) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 215 | def subset_glyphs (self, s): |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 216 | if self.Format == 1: |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 217 | indices = self.Coverage.subset (s.glyphs) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 218 | self.PairSet = [self.PairSet[i] for i in indices] |
| 219 | for p in self.PairSet: |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 220 | p.PairValueRecord = [r for r in p.PairValueRecord if r.SecondGlyph in s.glyphs] |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 221 | p.PairValueCount = len (p.PairValueRecord) |
Behdad Esfahbod | d1d41bc | 2013-07-21 23:15:32 -0400 | [diff] [blame] | 222 | self.PairSet = [p for p in self.PairSet if p.PairValueCount] |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 223 | self.PairSetCount = len (self.PairSet) |
Behdad Esfahbod | 4027dd8 | 2013-07-23 10:56:04 -0400 | [diff] [blame] | 224 | return bool (self.PairSetCount) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 225 | elif self.Format == 2: |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 226 | class1_map = self.ClassDef1.subset (s.glyphs, remap=True) |
| 227 | class2_map = self.ClassDef2.subset (s.glyphs, remap=True) |
Behdad Esfahbod | 4aa6ce3 | 2013-07-22 12:15:36 -0400 | [diff] [blame] | 228 | self.Class1Record = [self.Class1Record[i] for i in class1_map] |
| 229 | for c in self.Class1Record: |
| 230 | c.Class2Record = [c.Class2Record[i] for i in class2_map] |
| 231 | self.Class1Count = len (class1_map) |
| 232 | self.Class2Count = len (class2_map) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 233 | return bool (self.Class1Count and self.Class2Count and self.Coverage.subset (s.glyphs)) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 234 | else: |
| 235 | assert 0, "unknown format: %s" % self.Format |
| 236 | |
| 237 | @add_method(fontTools.ttLib.tables.otTables.CursivePos) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 238 | def subset_glyphs (self, s): |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 239 | if self.Format == 1: |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 240 | indices = self.Coverage.subset (s.glyphs) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 241 | self.EntryExitRecord = [self.EntryExitRecord[i] for i in indices] |
Behdad Esfahbod | d1d41bc | 2013-07-21 23:15:32 -0400 | [diff] [blame] | 242 | self.EntryExitCount = len (self.EntryExitRecord) |
Behdad Esfahbod | 4027dd8 | 2013-07-23 10:56:04 -0400 | [diff] [blame] | 243 | return bool (self.EntryExitCount) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 244 | else: |
| 245 | assert 0, "unknown format: %s" % self.Format |
| 246 | |
| 247 | @add_method(fontTools.ttLib.tables.otTables.MarkBasePos) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 248 | def subset_glyphs (self, s): |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 249 | if self.Format == 1: |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 250 | mark_indices = self.MarkCoverage.subset (s.glyphs) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 251 | self.MarkArray.MarkRecord = [self.MarkArray.MarkRecord[i] for i in mark_indices] |
| 252 | self.MarkArray.MarkCount = len (self.MarkArray.MarkRecord) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 253 | base_indices = self.BaseCoverage.subset (s.glyphs) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 254 | self.BaseArray.BaseRecord = [self.BaseArray.BaseRecord[i] for i in base_indices] |
| 255 | self.BaseArray.BaseCount = len (self.BaseArray.BaseRecord) |
Behdad Esfahbod | c6396b7 | 2013-07-22 12:31:33 -0400 | [diff] [blame] | 256 | # Prune empty classes |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 257 | class_indices = unique_sorted (v.Class for v in self.MarkArray.MarkRecord) |
Behdad Esfahbod | c6396b7 | 2013-07-22 12:31:33 -0400 | [diff] [blame] | 258 | self.ClassCount = len (class_indices) |
| 259 | for m in self.MarkArray.MarkRecord: |
| 260 | m.Class = class_indices.index (m.Class) |
| 261 | for b in self.BaseArray.BaseRecord: |
| 262 | b.BaseAnchor = [b.BaseAnchor[i] for i in class_indices] |
Behdad Esfahbod | 4027dd8 | 2013-07-23 10:56:04 -0400 | [diff] [blame] | 263 | return bool (self.ClassCount and self.MarkArray.MarkCount and self.BaseArray.BaseCount) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 264 | else: |
| 265 | assert 0, "unknown format: %s" % self.Format |
| 266 | |
| 267 | @add_method(fontTools.ttLib.tables.otTables.MarkLigPos) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 268 | def subset_glyphs (self, s): |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 269 | if self.Format == 1: |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 270 | mark_indices = self.MarkCoverage.subset (s.glyphs) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 271 | self.MarkArray.MarkRecord = [self.MarkArray.MarkRecord[i] for i in mark_indices] |
| 272 | self.MarkArray.MarkCount = len (self.MarkArray.MarkRecord) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 273 | ligature_indices = self.LigatureCoverage.subset (s.glyphs) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 274 | self.LigatureArray.LigatureAttach = [self.LigatureArray.LigatureAttach[i] for i in ligature_indices] |
| 275 | self.LigatureArray.LigatureCount = len (self.LigatureArray.LigatureAttach) |
Behdad Esfahbod | c6396b7 | 2013-07-22 12:31:33 -0400 | [diff] [blame] | 276 | # Prune empty classes |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 277 | class_indices = unique_sorted (v.Class for v in self.MarkArray.MarkRecord) |
Behdad Esfahbod | c6396b7 | 2013-07-22 12:31:33 -0400 | [diff] [blame] | 278 | self.ClassCount = len (class_indices) |
| 279 | for m in self.MarkArray.MarkRecord: |
| 280 | m.Class = class_indices.index (m.Class) |
| 281 | for l in self.LigatureArray.LigatureAttach: |
| 282 | for c in l.ComponentRecord: |
| 283 | c.LigatureAnchor = [c.LigatureAnchor[i] for i in class_indices] |
Behdad Esfahbod | 4027dd8 | 2013-07-23 10:56:04 -0400 | [diff] [blame] | 284 | return bool (self.ClassCount and self.MarkArray.MarkCount and self.LigatureArray.LigatureCount) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 285 | else: |
| 286 | assert 0, "unknown format: %s" % self.Format |
| 287 | |
| 288 | @add_method(fontTools.ttLib.tables.otTables.MarkMarkPos) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 289 | def subset_glyphs (self, s): |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 290 | if self.Format == 1: |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 291 | mark1_indices = self.Mark1Coverage.subset (s.glyphs) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 292 | self.Mark1Array.MarkRecord = [self.Mark1Array.MarkRecord[i] for i in mark1_indices] |
| 293 | self.Mark1Array.MarkCount = len (self.Mark1Array.MarkRecord) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 294 | mark2_indices = self.Mark2Coverage.subset (s.glyphs) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 295 | self.Mark2Array.Mark2Record = [self.Mark2Array.Mark2Record[i] for i in mark2_indices] |
| 296 | self.Mark2Array.MarkCount = len (self.Mark2Array.Mark2Record) |
Behdad Esfahbod | c6396b7 | 2013-07-22 12:31:33 -0400 | [diff] [blame] | 297 | # Prune empty classes |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 298 | class_indices = unique_sorted (v.Class for v in self.Mark1Array.MarkRecord) |
Behdad Esfahbod | c6396b7 | 2013-07-22 12:31:33 -0400 | [diff] [blame] | 299 | self.ClassCount = len (class_indices) |
| 300 | for m in self.Mark1Array.MarkRecord: |
| 301 | m.Class = class_indices.index (m.Class) |
| 302 | for b in self.Mark2Array.Mark2Record: |
| 303 | b.Mark2Anchor = [b.Mark2Anchor[i] for i in class_indices] |
Behdad Esfahbod | 4027dd8 | 2013-07-23 10:56:04 -0400 | [diff] [blame] | 304 | return bool (self.ClassCount and self.Mark1Array.MarkCount and self.Mark2Array.MarkCount) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 305 | else: |
| 306 | assert 0, "unknown format: %s" % self.Format |
| 307 | |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 308 | @add_method(fontTools.ttLib.tables.otTables.SingleSubst, |
Behdad Esfahbod | aeacc15 | 2013-08-12 20:24:33 -0400 | [diff] [blame] | 309 | fontTools.ttLib.tables.otTables.MultipleSubst, |
| 310 | fontTools.ttLib.tables.otTables.AlternateSubst, |
| 311 | fontTools.ttLib.tables.otTables.LigatureSubst, |
| 312 | fontTools.ttLib.tables.otTables.ReverseChainSingleSubst, |
| 313 | fontTools.ttLib.tables.otTables.SinglePos, |
| 314 | fontTools.ttLib.tables.otTables.PairPos, |
| 315 | fontTools.ttLib.tables.otTables.CursivePos, |
| 316 | fontTools.ttLib.tables.otTables.MarkBasePos, |
| 317 | fontTools.ttLib.tables.otTables.MarkLigPos, |
| 318 | fontTools.ttLib.tables.otTables.MarkMarkPos) |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 319 | def subset_lookups (self, lookup_indices): |
| 320 | pass |
| 321 | |
| 322 | @add_method(fontTools.ttLib.tables.otTables.SingleSubst, |
Behdad Esfahbod | aeacc15 | 2013-08-12 20:24:33 -0400 | [diff] [blame] | 323 | fontTools.ttLib.tables.otTables.MultipleSubst, |
| 324 | fontTools.ttLib.tables.otTables.AlternateSubst, |
| 325 | fontTools.ttLib.tables.otTables.LigatureSubst, |
| 326 | fontTools.ttLib.tables.otTables.ReverseChainSingleSubst, |
| 327 | fontTools.ttLib.tables.otTables.SinglePos, |
| 328 | fontTools.ttLib.tables.otTables.PairPos, |
| 329 | fontTools.ttLib.tables.otTables.CursivePos, |
| 330 | fontTools.ttLib.tables.otTables.MarkBasePos, |
| 331 | fontTools.ttLib.tables.otTables.MarkLigPos, |
| 332 | fontTools.ttLib.tables.otTables.MarkMarkPos) |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 333 | def collect_lookups (self): |
| 334 | return [] |
| 335 | |
Behdad Esfahbod | aeacc15 | 2013-08-12 20:24:33 -0400 | [diff] [blame] | 336 | @add_method(fontTools.ttLib.tables.otTables.SingleSubst, |
| 337 | fontTools.ttLib.tables.otTables.AlternateSubst, |
| 338 | fontTools.ttLib.tables.otTables.ReverseChainSingleSubst) |
| 339 | def may_have_non_1to1 (self): |
| 340 | return False |
| 341 | |
| 342 | @add_method(fontTools.ttLib.tables.otTables.MultipleSubst, |
| 343 | fontTools.ttLib.tables.otTables.LigatureSubst, |
| 344 | fontTools.ttLib.tables.otTables.ContextSubst, |
| 345 | fontTools.ttLib.tables.otTables.ChainContextSubst) |
| 346 | def may_have_non_1to1 (self): |
| 347 | return True |
| 348 | |
Behdad Esfahbod | 44c2b3c | 2013-07-23 16:00:32 -0400 | [diff] [blame] | 349 | @add_method(fontTools.ttLib.tables.otTables.ContextSubst, fontTools.ttLib.tables.otTables.ChainContextSubst, |
| 350 | fontTools.ttLib.tables.otTables.ContextPos, fontTools.ttLib.tables.otTables.ChainContextPos) |
| 351 | def __classify_context (self): |
Behdad Esfahbod | b178dca | 2013-07-23 22:51:50 -0400 | [diff] [blame] | 352 | |
| 353 | class ContextHelper: |
| 354 | def __init__ (self, klass, Format): |
| 355 | if klass.__name__.endswith ('Subst'): |
Behdad Esfahbod | 9e73572 | 2013-07-23 16:35:23 -0400 | [diff] [blame] | 356 | Typ = 'Sub' |
| 357 | Type = 'Subst' |
Behdad Esfahbod | 6870f8a | 2013-07-23 16:18:30 -0400 | [diff] [blame] | 358 | else: |
Behdad Esfahbod | 9e73572 | 2013-07-23 16:35:23 -0400 | [diff] [blame] | 359 | Typ = 'Pos' |
| 360 | Type = 'Pos' |
Behdad Esfahbod | b178dca | 2013-07-23 22:51:50 -0400 | [diff] [blame] | 361 | if klass.__name__.startswith ('Chain'): |
Behdad Esfahbod | 9e73572 | 2013-07-23 16:35:23 -0400 | [diff] [blame] | 362 | Chain = 'Chain' |
| 363 | else: |
| 364 | Chain = '' |
| 365 | ChainTyp = Chain+Typ |
| 366 | |
| 367 | self.Typ = Typ |
| 368 | self.Type = Type |
| 369 | self.Chain = Chain |
| 370 | self.ChainTyp = ChainTyp |
| 371 | |
| 372 | self.LookupRecord = Type+'LookupRecord' |
| 373 | |
Behdad Esfahbod | 452ab6c | 2013-07-23 22:57:43 -0400 | [diff] [blame] | 374 | if Format == 1: |
Behdad Esfahbod | 1d4fa13 | 2013-08-08 22:59:32 -0400 | [diff] [blame] | 375 | Coverage = lambda r: r.Coverage |
| 376 | ChainCoverage = lambda r: r.Coverage |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 377 | ContextData = lambda r: (None,) |
| 378 | ChainContextData = lambda r: (None, None, None) |
| 379 | RuleData = lambda r: (r.Input,) |
| 380 | ChainRuleData = lambda r: (r.Backtrack, r.Input, r.LookAhead) |
Behdad Esfahbod | 44fc6f6 | 2013-07-24 11:24:39 -0400 | [diff] [blame] | 381 | SetRuleData = None |
| 382 | ChainSetRuleData = None |
Behdad Esfahbod | 452ab6c | 2013-07-23 22:57:43 -0400 | [diff] [blame] | 383 | elif Format == 2: |
Behdad Esfahbod | 1d4fa13 | 2013-08-08 22:59:32 -0400 | [diff] [blame] | 384 | Coverage = lambda r: r.Coverage |
| 385 | ChainCoverage = lambda r: r.Coverage |
Behdad Esfahbod | e3f2073 | 2013-07-24 11:26:43 -0400 | [diff] [blame] | 386 | ContextData = lambda r: (r.ClassDef,) |
| 387 | ChainContextData = lambda r: (r.LookAheadClassDef, r.InputClassDef, r.BacktrackClassDef) |
| 388 | RuleData = lambda r: (r.Class,) |
| 389 | ChainRuleData = lambda r: (r.LookAhead, r.Input, r.Backtrack) |
| 390 | def SetRuleData (r, d): (r.Class,) = d |
| 391 | def ChainSetRuleData (r, d): (r.LookAhead, r.Input, r.Backtrack) = d |
Behdad Esfahbod | 452ab6c | 2013-07-23 22:57:43 -0400 | [diff] [blame] | 392 | elif Format == 3: |
Behdad Esfahbod | 1d4fa13 | 2013-08-08 22:59:32 -0400 | [diff] [blame] | 393 | Coverage = lambda r: r.Coverage[0] |
| 394 | ChainCoverage = lambda r: r.InputCoverage[0] |
Behdad Esfahbod | 452ab6c | 2013-07-23 22:57:43 -0400 | [diff] [blame] | 395 | ContextData = None |
| 396 | ChainContextData = None |
| 397 | RuleData = lambda r: r.Coverage |
| 398 | ChainRuleData = lambda r: r.LookAheadCoverage + r.InputCoverage + r.BacktrackCoverage |
Behdad Esfahbod | 44fc6f6 | 2013-07-24 11:24:39 -0400 | [diff] [blame] | 399 | SetRuleData = None |
| 400 | ChainSetRuleData = None |
Behdad Esfahbod | 452ab6c | 2013-07-23 22:57:43 -0400 | [diff] [blame] | 401 | else: |
| 402 | assert 0, "unknown format: %s" % Format |
| 403 | |
Behdad Esfahbod | 1ab2dbf | 2013-07-23 17:17:21 -0400 | [diff] [blame] | 404 | if Chain: |
Behdad Esfahbod | 1d4fa13 | 2013-08-08 22:59:32 -0400 | [diff] [blame] | 405 | self.Coverage = ChainCoverage |
Behdad Esfahbod | 707a37a | 2013-07-23 21:08:26 -0400 | [diff] [blame] | 406 | self.ContextData = ChainContextData |
Behdad Esfahbod | b8d5588 | 2013-07-23 22:17:39 -0400 | [diff] [blame] | 407 | self.RuleData = ChainRuleData |
Behdad Esfahbod | 44fc6f6 | 2013-07-24 11:24:39 -0400 | [diff] [blame] | 408 | self.SetRuleData = ChainSetRuleData |
Behdad Esfahbod | 1ab2dbf | 2013-07-23 17:17:21 -0400 | [diff] [blame] | 409 | else: |
Behdad Esfahbod | 1d4fa13 | 2013-08-08 22:59:32 -0400 | [diff] [blame] | 410 | self.Coverage = Coverage |
Behdad Esfahbod | 707a37a | 2013-07-23 21:08:26 -0400 | [diff] [blame] | 411 | self.ContextData = ContextData |
Behdad Esfahbod | b8d5588 | 2013-07-23 22:17:39 -0400 | [diff] [blame] | 412 | self.RuleData = RuleData |
Behdad Esfahbod | 44fc6f6 | 2013-07-24 11:24:39 -0400 | [diff] [blame] | 413 | self.SetRuleData = SetRuleData |
Behdad Esfahbod | 9e73572 | 2013-07-23 16:35:23 -0400 | [diff] [blame] | 414 | |
Behdad Esfahbod | bac31f5 | 2013-07-23 23:00:39 -0400 | [diff] [blame] | 415 | if Format == 1: |
| 416 | self.Rule = ChainTyp+'Rule' |
| 417 | self.RuleCount = ChainTyp+'RuleCount' |
| 418 | self.RuleSet = ChainTyp+'RuleSet' |
| 419 | self.RuleSetCount = ChainTyp+'RuleSetCount' |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 420 | self.Intersect = lambda glyphs, ContextData, RuleData: [RuleData] if RuleData in glyphs else [] |
Behdad Esfahbod | bac31f5 | 2013-07-23 23:00:39 -0400 | [diff] [blame] | 421 | elif Format == 2: |
| 422 | self.Rule = ChainTyp+'ClassRule' |
| 423 | self.RuleCount = ChainTyp+'ClassRuleCount' |
| 424 | self.RuleSet = ChainTyp+'ClassSet' |
| 425 | self.RuleSetCount = ChainTyp+'ClassSetCount' |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 426 | self.Intersect = lambda glyphs, ContextData, RuleData: ContextData.intersect_class (glyphs, RuleData) |
Behdad Esfahbod | 8998700 | 2013-07-23 23:07:42 -0400 | [diff] [blame] | 427 | |
Behdad Esfahbod | bac31f5 | 2013-07-23 23:00:39 -0400 | [diff] [blame] | 428 | self.ClassDef = 'InputClassDef' if Chain else 'ClassDef' |
Behdad Esfahbod | 2710839 | 2013-07-23 16:40:47 -0400 | [diff] [blame] | 429 | |
Behdad Esfahbod | b178dca | 2013-07-23 22:51:50 -0400 | [diff] [blame] | 430 | if self.Format not in [1, 2, 3]: |
| 431 | return None # Don't shoot the messenger; let it go |
| 432 | if not hasattr (self.__class__, "__ContextHelpers"): |
| 433 | self.__class__.__ContextHelpers = {} |
| 434 | if self.Format not in self.__class__.__ContextHelpers: |
| 435 | self.__class__.__ContextHelpers[self.Format] = ContextHelper (self.__class__, self.Format) |
| 436 | return self.__class__.__ContextHelpers[self.Format] |
Behdad Esfahbod | 44c2b3c | 2013-07-23 16:00:32 -0400 | [diff] [blame] | 437 | |
Behdad Esfahbod | f2b6d9c | 2013-07-23 17:31:54 -0400 | [diff] [blame] | 438 | @add_method(fontTools.ttLib.tables.otTables.ContextSubst, fontTools.ttLib.tables.otTables.ChainContextSubst) |
Behdad Esfahbod | 1d4fa13 | 2013-08-08 22:59:32 -0400 | [diff] [blame] | 439 | def closure_glyphs (self, s, cur_glyphs=None): |
| 440 | if cur_glyphs == None: cur_glyphs = s.glyphs |
Behdad Esfahbod | 1ab2dbf | 2013-07-23 17:17:21 -0400 | [diff] [blame] | 441 | c = self.__classify_context () |
| 442 | |
Behdad Esfahbod | 1d4fa13 | 2013-08-08 22:59:32 -0400 | [diff] [blame] | 443 | indices = c.Coverage (self).intersect (s.glyphs) |
| 444 | if not indices: |
| 445 | return [] |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 446 | cur_glyphs = c.Coverage (self).intersect_glyphs (s.glyphs); |
Behdad Esfahbod | 1d4fa13 | 2013-08-08 22:59:32 -0400 | [diff] [blame] | 447 | |
Behdad Esfahbod | 0077697 | 2013-07-23 15:33:00 -0400 | [diff] [blame] | 448 | if self.Format == 1: |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 449 | ContextData = c.ContextData (self) |
Behdad Esfahbod | eeca982 | 2013-07-23 17:42:17 -0400 | [diff] [blame] | 450 | rss = getattr (self, c.RuleSet) |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 451 | for i in indices: |
| 452 | if not rss[i]: continue |
| 453 | for r in getattr (rss[i], c.Rule): |
| 454 | if not r: continue |
| 455 | if all (all (c.Intersect (s.glyphs, cd, k) for k in klist) |
| 456 | for cd,klist in zip (ContextData, c.RuleData (r))): |
Behdad Esfahbod | aeacc15 | 2013-08-12 20:24:33 -0400 | [diff] [blame] | 457 | chaos = False |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 458 | for ll in getattr (r, c.LookupRecord): |
| 459 | if not ll: continue |
| 460 | seqi = ll.SequenceIndex |
| 461 | if seqi == 0: |
| 462 | pos_glyphs = set (c.Coverage (self).glyphs[i]) |
| 463 | else: |
Behdad Esfahbod | aeacc15 | 2013-08-12 20:24:33 -0400 | [diff] [blame] | 464 | if chaos: |
| 465 | pos_glyphs = s.glyphs |
| 466 | else: |
| 467 | pos_glyphs = set (r.Input[seqi - 1]) |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 468 | lookup = s.table.LookupList.Lookup[ll.LookupListIndex] |
Behdad Esfahbod | aeacc15 | 2013-08-12 20:24:33 -0400 | [diff] [blame] | 469 | chaos = chaos or lookup.may_have_non_1to1 () |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 470 | lookup.closure_glyphs (s, cur_glyphs=pos_glyphs) |
Behdad Esfahbod | 0077697 | 2013-07-23 15:33:00 -0400 | [diff] [blame] | 471 | elif self.Format == 2: |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 472 | ClassDef = getattr (self, c.ClassDef) |
| 473 | indices = ClassDef.intersect (cur_glyphs) |
| 474 | ContextData = c.ContextData (self) |
Behdad Esfahbod | bac31f5 | 2013-07-23 23:00:39 -0400 | [diff] [blame] | 475 | rss = getattr (self, c.RuleSet) |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 476 | for i in indices: |
| 477 | if not rss[i]: continue |
| 478 | for r in getattr (rss[i], c.Rule): |
| 479 | if not r: continue |
| 480 | if all (all (c.Intersect (s.glyphs, cd, k) for k in klist) |
| 481 | for cd,klist in zip (ContextData, c.RuleData (r))): |
Behdad Esfahbod | aeacc15 | 2013-08-12 20:24:33 -0400 | [diff] [blame] | 482 | chaos = False |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 483 | for ll in getattr (r, c.LookupRecord): |
| 484 | if not ll: continue |
| 485 | seqi = ll.SequenceIndex |
| 486 | if seqi == 0: |
| 487 | pos_glyphs = ClassDef.intersect_class (cur_glyphs, i) |
| 488 | else: |
Behdad Esfahbod | aeacc15 | 2013-08-12 20:24:33 -0400 | [diff] [blame] | 489 | if chaos: |
| 490 | pos_glyphs = s.glyphs |
| 491 | else: |
| 492 | pos_glyphs = ClassDef.intersect_class (s.glyphs, r.Input[seqi - 1]) |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 493 | lookup = s.table.LookupList.Lookup[ll.LookupListIndex] |
Behdad Esfahbod | aeacc15 | 2013-08-12 20:24:33 -0400 | [diff] [blame] | 494 | chaos = chaos or lookup.may_have_non_1to1 () |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 495 | lookup.closure_glyphs (s, cur_glyphs=pos_glyphs) |
Behdad Esfahbod | 0077697 | 2013-07-23 15:33:00 -0400 | [diff] [blame] | 496 | elif self.Format == 3: |
Behdad Esfahbod | 254442b | 2013-07-31 14:20:13 -0400 | [diff] [blame] | 497 | if not all (x.intersect (s.glyphs) for x in c.RuleData (self)): |
Behdad Esfahbod | 0077697 | 2013-07-23 15:33:00 -0400 | [diff] [blame] | 498 | return [] |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 499 | r = self |
Behdad Esfahbod | aeacc15 | 2013-08-12 20:24:33 -0400 | [diff] [blame] | 500 | chaos = False |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 501 | for ll in getattr (r, c.LookupRecord): |
| 502 | if not ll: continue |
| 503 | seqi = ll.SequenceIndex |
| 504 | if seqi == 0: |
| 505 | pos_glyphs = cur_glyphs |
| 506 | else: |
Behdad Esfahbod | aeacc15 | 2013-08-12 20:24:33 -0400 | [diff] [blame] | 507 | if chaos: |
| 508 | pos_glyphs = s.glyphs |
| 509 | else: |
| 510 | pos_glyphs = r.InputCoverage[seqi].intersect_glyphs (s.glyphs) |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 511 | lookup = s.table.LookupList.Lookup[ll.LookupListIndex] |
Behdad Esfahbod | aeacc15 | 2013-08-12 20:24:33 -0400 | [diff] [blame] | 512 | chaos = chaos or lookup.may_have_non_1to1 () |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 513 | lookup.closure_glyphs (s, cur_glyphs=pos_glyphs) |
Behdad Esfahbod | 0077697 | 2013-07-23 15:33:00 -0400 | [diff] [blame] | 514 | else: |
| 515 | assert 0, "unknown format: %s" % self.Format |
| 516 | |
Behdad Esfahbod | cbba4a6 | 2013-07-23 17:27:18 -0400 | [diff] [blame] | 517 | @add_method(fontTools.ttLib.tables.otTables.ContextSubst, fontTools.ttLib.tables.otTables.ContextPos, |
| 518 | fontTools.ttLib.tables.otTables.ChainContextSubst, fontTools.ttLib.tables.otTables.ChainContextPos) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 519 | def subset_glyphs (self, s): |
Behdad Esfahbod | d8c7e10 | 2013-07-23 17:07:06 -0400 | [diff] [blame] | 520 | c = self.__classify_context () |
| 521 | |
Behdad Esfahbod | 02b9206 | 2013-07-21 18:40:59 -0400 | [diff] [blame] | 522 | if self.Format == 1: |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 523 | indices = self.Coverage.subset (s.glyphs) |
Behdad Esfahbod | d8c7e10 | 2013-07-23 17:07:06 -0400 | [diff] [blame] | 524 | rss = getattr (self, c.RuleSet) |
| 525 | rss = [rss[i] for i in indices] |
| 526 | for rs in rss: |
Behdad Esfahbod | 6c11b89 | 2013-08-12 15:41:30 -0400 | [diff] [blame] | 527 | if not rs: continue |
| 528 | ss = getattr (rs, c.Rule) |
Behdad Esfahbod | 50cff38 | 2013-08-13 18:40:36 -0400 | [diff] [blame] | 529 | ss = [r for r in ss |
| 530 | if r and all (all (g in s.glyphs for g in glist) |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 531 | for glist in c.RuleData (r))] |
Behdad Esfahbod | 6c11b89 | 2013-08-12 15:41:30 -0400 | [diff] [blame] | 532 | setattr (rs, c.Rule, ss) |
| 533 | setattr (rs, c.RuleCount, len (ss)) |
Behdad Esfahbod | cbba4a6 | 2013-07-23 17:27:18 -0400 | [diff] [blame] | 534 | # Prune empty subrulesets |
Behdad Esfahbod | 7c225a6 | 2013-07-23 21:33:13 -0400 | [diff] [blame] | 535 | rss = [rs for rs in rss if rs and getattr (rs, c.Rule)] |
Behdad Esfahbod | d8c7e10 | 2013-07-23 17:07:06 -0400 | [diff] [blame] | 536 | setattr (self, c.RuleSet, rss) |
| 537 | setattr (self, c.RuleSetCount, len (rss)) |
| 538 | return bool (rss) |
Behdad Esfahbod | 02b9206 | 2013-07-21 18:40:59 -0400 | [diff] [blame] | 539 | elif self.Format == 2: |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 540 | if not self.Coverage.subset (s.glyphs): |
Behdad Esfahbod | e9a3bd6 | 2013-07-23 22:41:11 -0400 | [diff] [blame] | 541 | return False |
Behdad Esfahbod | 1d4fa13 | 2013-08-08 22:59:32 -0400 | [diff] [blame] | 542 | indices = getattr (self, c.ClassDef).subset (self.Coverage.glyphs, remap=False) |
Behdad Esfahbod | bac31f5 | 2013-07-23 23:00:39 -0400 | [diff] [blame] | 543 | rss = getattr (self, c.RuleSet) |
Behdad Esfahbod | e9a3bd6 | 2013-07-23 22:41:11 -0400 | [diff] [blame] | 544 | rss = [rss[i] for i in indices] |
| 545 | ContextData = c.ContextData (self) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 546 | klass_maps = [x.subset (s.glyphs, remap=True) for x in ContextData] |
Behdad Esfahbod | e9a3bd6 | 2013-07-23 22:41:11 -0400 | [diff] [blame] | 547 | for rs in rss: |
Behdad Esfahbod | 6c11b89 | 2013-08-12 15:41:30 -0400 | [diff] [blame] | 548 | if not rs: continue |
| 549 | ss = getattr (rs, c.Rule) |
Behdad Esfahbod | 50cff38 | 2013-08-13 18:40:36 -0400 | [diff] [blame] | 550 | ss = [r for r in ss |
| 551 | if r and all (all (k in klass_map for k in klist) |
Behdad Esfahbod | 6c11b89 | 2013-08-12 15:41:30 -0400 | [diff] [blame] | 552 | for klass_map,klist in zip (klass_maps, c.RuleData (r)))] |
| 553 | setattr (rs, c.Rule, ss) |
| 554 | setattr (rs, c.RuleCount, len (ss)) |
Behdad Esfahbod | e9a3bd6 | 2013-07-23 22:41:11 -0400 | [diff] [blame] | 555 | |
Behdad Esfahbod | 6c11b89 | 2013-08-12 15:41:30 -0400 | [diff] [blame] | 556 | # Remap rule classes |
| 557 | for r in ss: |
Behdad Esfahbod | 50cff38 | 2013-08-13 18:40:36 -0400 | [diff] [blame] | 558 | c.SetRuleData (r, [[klass_map.index (k) for k in klist] |
Behdad Esfahbod | 6c11b89 | 2013-08-12 15:41:30 -0400 | [diff] [blame] | 559 | for klass_map,klist in zip (klass_maps, c.RuleData (r))]) |
Behdad Esfahbod | e9a3bd6 | 2013-07-23 22:41:11 -0400 | [diff] [blame] | 560 | # Prune empty subrulesets |
Behdad Esfahbod | bac31f5 | 2013-07-23 23:00:39 -0400 | [diff] [blame] | 561 | rss = [rs for rs in rss if rs and getattr (rs, c.Rule)] |
| 562 | setattr (self, c.RuleSet, rss) |
| 563 | setattr (self, c.RuleSetCount, len (rss)) |
Behdad Esfahbod | e9a3bd6 | 2013-07-23 22:41:11 -0400 | [diff] [blame] | 564 | return bool (rss) |
Behdad Esfahbod | 02b9206 | 2013-07-21 18:40:59 -0400 | [diff] [blame] | 565 | elif self.Format == 3: |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 566 | return all (x.subset (s.glyphs) for x in c.RuleData (self)) |
Behdad Esfahbod | 02b9206 | 2013-07-21 18:40:59 -0400 | [diff] [blame] | 567 | else: |
| 568 | assert 0, "unknown format: %s" % self.Format |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 569 | |
Behdad Esfahbod | 44c2b3c | 2013-07-23 16:00:32 -0400 | [diff] [blame] | 570 | @add_method(fontTools.ttLib.tables.otTables.ContextSubst, fontTools.ttLib.tables.otTables.ChainContextSubst, |
| 571 | fontTools.ttLib.tables.otTables.ContextPos, fontTools.ttLib.tables.otTables.ChainContextPos) |
Behdad Esfahbod | 59dfc13 | 2013-07-23 15:39:20 -0400 | [diff] [blame] | 572 | def subset_lookups (self, lookup_indices): |
Behdad Esfahbod | 6870f8a | 2013-07-23 16:18:30 -0400 | [diff] [blame] | 573 | c = self.__classify_context () |
Behdad Esfahbod | 44c2b3c | 2013-07-23 16:00:32 -0400 | [diff] [blame] | 574 | |
Behdad Esfahbod | 1f57363 | 2013-07-23 23:04:43 -0400 | [diff] [blame] | 575 | if self.Format in [1, 2]: |
Behdad Esfahbod | 9e73572 | 2013-07-23 16:35:23 -0400 | [diff] [blame] | 576 | for rs in getattr (self, c.RuleSet): |
Behdad Esfahbod | 6c11b89 | 2013-08-12 15:41:30 -0400 | [diff] [blame] | 577 | if not rs: continue |
| 578 | for r in getattr (rs, c.Rule): |
| 579 | if not r: continue |
Behdad Esfahbod | 50cff38 | 2013-08-13 18:40:36 -0400 | [diff] [blame] | 580 | setattr (r, c.LookupRecord, [ll for ll in getattr (r, c.LookupRecord) if ll |
Behdad Esfahbod | 6c11b89 | 2013-08-12 15:41:30 -0400 | [diff] [blame] | 581 | if ll.LookupListIndex in lookup_indices]) |
| 582 | for ll in getattr (r, c.LookupRecord): |
| 583 | if not ll: continue |
| 584 | ll.LookupListIndex = lookup_indices.index (ll.LookupListIndex) |
Behdad Esfahbod | 59dfc13 | 2013-07-23 15:39:20 -0400 | [diff] [blame] | 585 | elif self.Format == 3: |
Behdad Esfahbod | 50cff38 | 2013-08-13 18:40:36 -0400 | [diff] [blame] | 586 | setattr (self, c.LookupRecord, [ll for ll in getattr (self, c.LookupRecord) if ll |
Behdad Esfahbod | 6870f8a | 2013-07-23 16:18:30 -0400 | [diff] [blame] | 587 | if ll.LookupListIndex in lookup_indices]) |
| 588 | for ll in getattr (self, c.LookupRecord): |
Behdad Esfahbod | 6c11b89 | 2013-08-12 15:41:30 -0400 | [diff] [blame] | 589 | if not ll: continue |
| 590 | ll.LookupListIndex = lookup_indices.index (ll.LookupListIndex) |
Behdad Esfahbod | 59dfc13 | 2013-07-23 15:39:20 -0400 | [diff] [blame] | 591 | else: |
| 592 | assert 0, "unknown format: %s" % self.Format |
| 593 | |
Behdad Esfahbod | 44c2b3c | 2013-07-23 16:00:32 -0400 | [diff] [blame] | 594 | @add_method(fontTools.ttLib.tables.otTables.ContextSubst, fontTools.ttLib.tables.otTables.ChainContextSubst, |
| 595 | fontTools.ttLib.tables.otTables.ContextPos, fontTools.ttLib.tables.otTables.ChainContextPos) |
Behdad Esfahbod | 59dfc13 | 2013-07-23 15:39:20 -0400 | [diff] [blame] | 596 | def collect_lookups (self): |
Behdad Esfahbod | 6870f8a | 2013-07-23 16:18:30 -0400 | [diff] [blame] | 597 | c = self.__classify_context () |
Behdad Esfahbod | 44c2b3c | 2013-07-23 16:00:32 -0400 | [diff] [blame] | 598 | |
Behdad Esfahbod | 1f57363 | 2013-07-23 23:04:43 -0400 | [diff] [blame] | 599 | if self.Format in [1, 2]: |
Behdad Esfahbod | 2710839 | 2013-07-23 16:40:47 -0400 | [diff] [blame] | 600 | return [ll.LookupListIndex \ |
Behdad Esfahbod | bac31f5 | 2013-07-23 23:00:39 -0400 | [diff] [blame] | 601 | for rs in getattr (self, c.RuleSet) if rs \ |
| 602 | for r in getattr (rs, c.Rule) if r \ |
Behdad Esfahbod | 7c225a6 | 2013-07-23 21:33:13 -0400 | [diff] [blame] | 603 | for ll in getattr (r, c.LookupRecord) if ll] |
Behdad Esfahbod | 59dfc13 | 2013-07-23 15:39:20 -0400 | [diff] [blame] | 604 | elif self.Format == 3: |
Behdad Esfahbod | 6870f8a | 2013-07-23 16:18:30 -0400 | [diff] [blame] | 605 | return [ll.LookupListIndex \ |
Behdad Esfahbod | 7c225a6 | 2013-07-23 21:33:13 -0400 | [diff] [blame] | 606 | for ll in getattr (self, c.LookupRecord) if ll] |
Behdad Esfahbod | 59dfc13 | 2013-07-23 15:39:20 -0400 | [diff] [blame] | 607 | else: |
| 608 | assert 0, "unknown format: %s" % self.Format |
| 609 | |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 610 | @add_method(fontTools.ttLib.tables.otTables.ExtensionSubst) |
Behdad Esfahbod | 1d4fa13 | 2013-08-08 22:59:32 -0400 | [diff] [blame] | 611 | def closure_glyphs (self, s, cur_glyphs=None): |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 612 | if self.Format == 1: |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 613 | self.ExtSubTable.closure_glyphs (s, cur_glyphs) |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 614 | else: |
| 615 | assert 0, "unknown format: %s" % self.Format |
| 616 | |
Behdad Esfahbod | aeacc15 | 2013-08-12 20:24:33 -0400 | [diff] [blame] | 617 | @add_method(fontTools.ttLib.tables.otTables.ExtensionSubst) |
| 618 | def may_have_non_1to1 (self): |
| 619 | if self.Format == 1: |
| 620 | return self.ExtSubTable.may_have_non_1to1 () |
| 621 | else: |
| 622 | assert 0, "unknown format: %s" % self.Format |
| 623 | |
Behdad Esfahbod | 02b9206 | 2013-07-21 18:40:59 -0400 | [diff] [blame] | 624 | @add_method(fontTools.ttLib.tables.otTables.ExtensionSubst, fontTools.ttLib.tables.otTables.ExtensionPos) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 625 | def subset_glyphs (self, s): |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 626 | if self.Format == 1: |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 627 | return self.ExtSubTable.subset_glyphs (s) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 628 | else: |
| 629 | assert 0, "unknown format: %s" % self.Format |
| 630 | |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 631 | @add_method(fontTools.ttLib.tables.otTables.ExtensionSubst, fontTools.ttLib.tables.otTables.ExtensionPos) |
| 632 | def subset_lookups (self, lookup_indices): |
| 633 | if self.Format == 1: |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 634 | return self.ExtSubTable.subset_lookups (lookup_indices) |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 635 | else: |
| 636 | assert 0, "unknown format: %s" % self.Format |
| 637 | |
| 638 | @add_method(fontTools.ttLib.tables.otTables.ExtensionSubst, fontTools.ttLib.tables.otTables.ExtensionPos) |
| 639 | def collect_lookups (self): |
| 640 | if self.Format == 1: |
| 641 | return self.ExtSubTable.collect_lookups () |
| 642 | else: |
| 643 | assert 0, "unknown format: %s" % self.Format |
| 644 | |
Behdad Esfahbod | 02b9206 | 2013-07-21 18:40:59 -0400 | [diff] [blame] | 645 | @add_method(fontTools.ttLib.tables.otTables.Lookup) |
Behdad Esfahbod | 1d4fa13 | 2013-08-08 22:59:32 -0400 | [diff] [blame] | 646 | def closure_glyphs (self, s, cur_glyphs=None): |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 647 | for st in self.SubTable: |
| 648 | if not st: continue |
| 649 | st.closure_glyphs (s, cur_glyphs) |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 650 | |
| 651 | @add_method(fontTools.ttLib.tables.otTables.Lookup) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 652 | def subset_glyphs (self, s): |
| 653 | self.SubTable = [st for st in self.SubTable if st and st.subset_glyphs (s)] |
Behdad Esfahbod | d1d41bc | 2013-07-21 23:15:32 -0400 | [diff] [blame] | 654 | self.SubTableCount = len (self.SubTable) |
Behdad Esfahbod | 4027dd8 | 2013-07-23 10:56:04 -0400 | [diff] [blame] | 655 | return bool (self.SubTableCount) |
Behdad Esfahbod | d1d41bc | 2013-07-21 23:15:32 -0400 | [diff] [blame] | 656 | |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 657 | @add_method(fontTools.ttLib.tables.otTables.Lookup) |
| 658 | def subset_lookups (self, lookup_indices): |
| 659 | for s in self.SubTable: |
| 660 | s.subset_lookups (lookup_indices) |
| 661 | |
| 662 | @add_method(fontTools.ttLib.tables.otTables.Lookup) |
| 663 | def collect_lookups (self): |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 664 | return unique_sorted (sum ((st.collect_lookups () for st in self.SubTable if st), [])) |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 665 | |
Behdad Esfahbod | aeacc15 | 2013-08-12 20:24:33 -0400 | [diff] [blame] | 666 | @add_method(fontTools.ttLib.tables.otTables.Lookup) |
| 667 | def may_have_non_1to1 (self): |
| 668 | return any (st.may_have_non_1to1 () for st in self.SubTable if st) |
| 669 | |
Behdad Esfahbod | d1d41bc | 2013-07-21 23:15:32 -0400 | [diff] [blame] | 670 | @add_method(fontTools.ttLib.tables.otTables.LookupList) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 671 | def subset_glyphs (self, s): |
Behdad Esfahbod | 77cda41 | 2013-07-22 11:46:50 -0400 | [diff] [blame] | 672 | "Returns the indices of nonempty lookups." |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 673 | return [i for (i,l) in enumerate (self.Lookup) if l and l.subset_glyphs (s)] |
Behdad Esfahbod | 77cda41 | 2013-07-22 11:46:50 -0400 | [diff] [blame] | 674 | |
| 675 | @add_method(fontTools.ttLib.tables.otTables.LookupList) |
| 676 | def subset_lookups (self, lookup_indices): |
Behdad Esfahbod | afae832 | 2013-07-24 18:57:06 -0400 | [diff] [blame] | 677 | self.Lookup = [self.Lookup[i] for i in lookup_indices if i < self.LookupCount] |
Behdad Esfahbod | 77cda41 | 2013-07-22 11:46:50 -0400 | [diff] [blame] | 678 | self.LookupCount = len (self.Lookup) |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 679 | for l in self.Lookup: |
| 680 | l.subset_lookups (lookup_indices) |
| 681 | |
| 682 | @add_method(fontTools.ttLib.tables.otTables.LookupList) |
| 683 | def closure_lookups (self, lookup_indices): |
Behdad Esfahbod | bb7e213 | 2013-07-23 13:48:35 -0400 | [diff] [blame] | 684 | lookup_indices = unique_sorted (lookup_indices) |
| 685 | recurse = lookup_indices |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 686 | while True: |
Behdad Esfahbod | afae832 | 2013-07-24 18:57:06 -0400 | [diff] [blame] | 687 | recurse_lookups = sum ((self.Lookup[i].collect_lookups () for i in recurse if i < self.LookupCount), []) |
| 688 | recurse_lookups = [l for l in recurse_lookups if l not in lookup_indices and l < self.LookupCount] |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 689 | if not recurse_lookups: |
Behdad Esfahbod | bb7e213 | 2013-07-23 13:48:35 -0400 | [diff] [blame] | 690 | return unique_sorted (lookup_indices) |
| 691 | recurse_lookups = unique_sorted (recurse_lookups) |
| 692 | lookup_indices.extend (recurse_lookups) |
| 693 | recurse = recurse_lookups |
Behdad Esfahbod | 77cda41 | 2013-07-22 11:46:50 -0400 | [diff] [blame] | 694 | |
| 695 | @add_method(fontTools.ttLib.tables.otTables.Feature) |
| 696 | def subset_lookups (self, lookup_indices): |
| 697 | self.LookupListIndex = [l for l in self.LookupListIndex if l in lookup_indices] |
| 698 | # Now map them. |
| 699 | self.LookupListIndex = [lookup_indices.index (l) for l in self.LookupListIndex] |
| 700 | self.LookupCount = len (self.LookupListIndex) |
Behdad Esfahbod | d1d41bc | 2013-07-21 23:15:32 -0400 | [diff] [blame] | 701 | return self.LookupCount |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 702 | |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 703 | @add_method(fontTools.ttLib.tables.otTables.Feature) |
| 704 | def collect_lookups (self): |
| 705 | return self.LookupListIndex[:] |
| 706 | |
Behdad Esfahbod | 77cda41 | 2013-07-22 11:46:50 -0400 | [diff] [blame] | 707 | @add_method(fontTools.ttLib.tables.otTables.FeatureList) |
| 708 | def subset_lookups (self, lookup_indices): |
| 709 | "Returns the indices of nonempty features." |
| 710 | feature_indices = [i for (i,f) in enumerate (self.FeatureRecord) if f.Feature.subset_lookups (lookup_indices)] |
Behdad Esfahbod | 356c42e | 2013-07-23 12:10:46 -0400 | [diff] [blame] | 711 | self.subset_features (feature_indices) |
Behdad Esfahbod | 77cda41 | 2013-07-22 11:46:50 -0400 | [diff] [blame] | 712 | return feature_indices |
| 713 | |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 714 | @add_method(fontTools.ttLib.tables.otTables.FeatureList) |
| 715 | def collect_lookups (self, feature_indices): |
| 716 | return unique_sorted (sum ((self.FeatureRecord[i].Feature.collect_lookups () for i in feature_indices |
| 717 | if i < self.FeatureCount), [])) |
| 718 | |
Behdad Esfahbod | 356c42e | 2013-07-23 12:10:46 -0400 | [diff] [blame] | 719 | @add_method(fontTools.ttLib.tables.otTables.FeatureList) |
| 720 | def subset_features (self, feature_indices): |
| 721 | self.FeatureRecord = [self.FeatureRecord[i] for i in feature_indices] |
| 722 | self.FeatureCount = len (self.FeatureRecord) |
| 723 | return bool (self.FeatureCount) |
| 724 | |
Behdad Esfahbod | 77cda41 | 2013-07-22 11:46:50 -0400 | [diff] [blame] | 725 | @add_method(fontTools.ttLib.tables.otTables.DefaultLangSys, fontTools.ttLib.tables.otTables.LangSys) |
| 726 | def subset_features (self, feature_indices): |
Behdad Esfahbod | 69ce150 | 2013-07-22 18:00:31 -0400 | [diff] [blame] | 727 | if self.ReqFeatureIndex in feature_indices: |
| 728 | self.ReqFeatureIndex = feature_indices.index (self.ReqFeatureIndex) |
| 729 | else: |
Behdad Esfahbod | 77cda41 | 2013-07-22 11:46:50 -0400 | [diff] [blame] | 730 | self.ReqFeatureIndex = 65535 |
| 731 | self.FeatureIndex = [f for f in self.FeatureIndex if f in feature_indices] |
Behdad Esfahbod | 69ce150 | 2013-07-22 18:00:31 -0400 | [diff] [blame] | 732 | # Now map them. |
| 733 | self.FeatureIndex = [feature_indices.index (f) for f in self.FeatureIndex if f in feature_indices] |
Behdad Esfahbod | 77cda41 | 2013-07-22 11:46:50 -0400 | [diff] [blame] | 734 | self.FeatureCount = len (self.FeatureIndex) |
Behdad Esfahbod | 356c42e | 2013-07-23 12:10:46 -0400 | [diff] [blame] | 735 | return bool (self.FeatureCount or self.ReqFeatureIndex != 65535) |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 736 | |
| 737 | @add_method(fontTools.ttLib.tables.otTables.DefaultLangSys, fontTools.ttLib.tables.otTables.LangSys) |
| 738 | def collect_features (self): |
| 739 | feature_indices = self.FeatureIndex[:] |
| 740 | if self.ReqFeatureIndex != 65535: |
| 741 | feature_indices.append (self.ReqFeatureIndex) |
| 742 | return unique_sorted (feature_indices) |
Behdad Esfahbod | 77cda41 | 2013-07-22 11:46:50 -0400 | [diff] [blame] | 743 | |
| 744 | @add_method(fontTools.ttLib.tables.otTables.Script) |
| 745 | def subset_features (self, feature_indices): |
| 746 | if self.DefaultLangSys and not self.DefaultLangSys.subset_features (feature_indices): |
| 747 | self.DefaultLangSys = None |
| 748 | self.LangSysRecord = [l for l in self.LangSysRecord if l.LangSys.subset_features (feature_indices)] |
| 749 | self.LangSysCount = len (self.LangSysRecord) |
Behdad Esfahbod | 356c42e | 2013-07-23 12:10:46 -0400 | [diff] [blame] | 750 | return bool (self.LangSysCount or self.DefaultLangSys) |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 751 | |
| 752 | @add_method(fontTools.ttLib.tables.otTables.Script) |
| 753 | def collect_features (self): |
Behdad Esfahbod | 2307c8b | 2013-07-23 11:18:13 -0400 | [diff] [blame] | 754 | feature_indices = [l.LangSys.collect_features () for l in self.LangSysRecord] |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 755 | if self.DefaultLangSys: |
| 756 | feature_indices.append (self.DefaultLangSys.collect_features ()) |
| 757 | return unique_sorted (sum (feature_indices, [])) |
Behdad Esfahbod | 77cda41 | 2013-07-22 11:46:50 -0400 | [diff] [blame] | 758 | |
| 759 | @add_method(fontTools.ttLib.tables.otTables.ScriptList) |
| 760 | def subset_features (self, feature_indices): |
| 761 | self.ScriptRecord = [s for s in self.ScriptRecord if s.Script.subset_features (feature_indices)] |
| 762 | self.ScriptCount = len (self.ScriptRecord) |
Behdad Esfahbod | 356c42e | 2013-07-23 12:10:46 -0400 | [diff] [blame] | 763 | return bool (self.ScriptCount) |
Behdad Esfahbod | 77cda41 | 2013-07-22 11:46:50 -0400 | [diff] [blame] | 764 | |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 765 | @add_method(fontTools.ttLib.tables.otTables.ScriptList) |
| 766 | def collect_features (self): |
| 767 | return unique_sorted (sum ((s.Script.collect_features () for s in self.ScriptRecord), [])) |
| 768 | |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 769 | @add_method(fontTools.ttLib.getTableClass('GSUB')) |
Behdad Esfahbod | 254442b | 2013-07-31 14:20:13 -0400 | [diff] [blame] | 770 | def closure_glyphs (self, s): |
| 771 | s.table = self.table |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 772 | feature_indices = self.table.ScriptList.collect_features () |
| 773 | lookup_indices = self.table.FeatureList.collect_lookups (feature_indices) |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 774 | while True: |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 775 | orig_glyphs = s.glyphs.copy () |
| 776 | for i in lookup_indices: |
| 777 | if i >= self.table.LookupList.LookupCount: continue |
| 778 | if not self.table.LookupList.Lookup[i]: continue |
| 779 | self.table.LookupList.Lookup[i].closure_glyphs (s) |
| 780 | if orig_glyphs == s.glyphs: |
| 781 | break |
Behdad Esfahbod | 254442b | 2013-07-31 14:20:13 -0400 | [diff] [blame] | 782 | del s.table |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 783 | |
Behdad Esfahbod | fd3923e | 2013-07-22 12:48:17 -0400 | [diff] [blame] | 784 | @add_method(fontTools.ttLib.getTableClass('GSUB'), fontTools.ttLib.getTableClass('GPOS')) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 785 | def subset_glyphs (self, s): |
Behdad Esfahbod | a6dbb7a | 2013-07-31 19:53:57 -0400 | [diff] [blame] | 786 | s.glyphs = s.glyphs_gsubed |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 787 | lookup_indices = self.table.LookupList.subset_glyphs (s) |
Behdad Esfahbod | 77cda41 | 2013-07-22 11:46:50 -0400 | [diff] [blame] | 788 | self.subset_lookups (lookup_indices) |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 789 | self.prune_lookups () |
| 790 | return True |
Behdad Esfahbod | 02b9206 | 2013-07-21 18:40:59 -0400 | [diff] [blame] | 791 | |
Behdad Esfahbod | fd3923e | 2013-07-22 12:48:17 -0400 | [diff] [blame] | 792 | @add_method(fontTools.ttLib.getTableClass('GSUB'), fontTools.ttLib.getTableClass('GPOS')) |
Behdad Esfahbod | 77cda41 | 2013-07-22 11:46:50 -0400 | [diff] [blame] | 793 | def subset_lookups (self, lookup_indices): |
| 794 | "Retrains specified lookups, then removes empty features, language systems, and scripts." |
Behdad Esfahbod | fd3923e | 2013-07-22 12:48:17 -0400 | [diff] [blame] | 795 | self.table.LookupList.subset_lookups (lookup_indices) |
| 796 | feature_indices = self.table.FeatureList.subset_lookups (lookup_indices) |
| 797 | self.table.ScriptList.subset_features (feature_indices) |
Behdad Esfahbod | 77cda41 | 2013-07-22 11:46:50 -0400 | [diff] [blame] | 798 | |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 799 | @add_method(fontTools.ttLib.getTableClass('GSUB'), fontTools.ttLib.getTableClass('GPOS')) |
| 800 | def prune_lookups (self): |
| 801 | "Remove unreferenced lookups" |
| 802 | feature_indices = self.table.ScriptList.collect_features () |
| 803 | lookup_indices = self.table.FeatureList.collect_lookups (feature_indices) |
| 804 | lookup_indices = self.table.LookupList.closure_lookups (lookup_indices) |
| 805 | self.subset_lookups (lookup_indices) |
| 806 | |
Behdad Esfahbod | 356c42e | 2013-07-23 12:10:46 -0400 | [diff] [blame] | 807 | @add_method(fontTools.ttLib.getTableClass('GSUB'), fontTools.ttLib.getTableClass('GPOS')) |
| 808 | def subset_feature_tags (self, feature_tags): |
| 809 | feature_indices = [i for (i,f) in enumerate (self.table.FeatureList.FeatureRecord) if f.FeatureTag in feature_tags] |
| 810 | self.table.FeatureList.subset_features (feature_indices) |
| 811 | self.table.ScriptList.subset_features (feature_indices) |
| 812 | |
| 813 | @add_method(fontTools.ttLib.getTableClass('GSUB'), fontTools.ttLib.getTableClass('GPOS')) |
Behdad Esfahbod | d7b6f8f | 2013-07-23 12:46:52 -0400 | [diff] [blame] | 814 | def prune_pre_subset (self, options): |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 815 | if options.layout_features and '*' not in options.layout_features: |
| 816 | self.subset_feature_tags (options.layout_features) |
Behdad Esfahbod | 356c42e | 2013-07-23 12:10:46 -0400 | [diff] [blame] | 817 | self.prune_lookups () |
| 818 | return True |
| 819 | |
Behdad Esfahbod | fd3923e | 2013-07-22 12:48:17 -0400 | [diff] [blame] | 820 | @add_method(fontTools.ttLib.getTableClass('GDEF')) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 821 | def subset_glyphs (self, s): |
Behdad Esfahbod | a6dbb7a | 2013-07-31 19:53:57 -0400 | [diff] [blame] | 822 | glyphs = s.glyphs_gsubed |
Behdad Esfahbod | fd3923e | 2013-07-22 12:48:17 -0400 | [diff] [blame] | 823 | table = self.table |
| 824 | if table.LigCaretList: |
Behdad Esfahbod | a6dbb7a | 2013-07-31 19:53:57 -0400 | [diff] [blame] | 825 | indices = table.LigCaretList.Coverage.subset (glyphs) |
Behdad Esfahbod | fd3923e | 2013-07-22 12:48:17 -0400 | [diff] [blame] | 826 | table.LigCaretList.LigGlyph = [table.LigCaretList.LigGlyph[i] for i in indices] |
| 827 | table.LigCaretList.LigGlyphCount = len (table.LigCaretList.LigGlyph) |
| 828 | if not table.LigCaretList.LigGlyphCount: |
| 829 | table.LigCaretList = None |
| 830 | if table.MarkAttachClassDef: |
Behdad Esfahbod | dc0c483 | 2013-08-13 18:50:36 -0400 | [diff] [blame] | 831 | table.MarkAttachClassDef.classDefs = {g:v for g,v in table.MarkAttachClassDef.classDefs.iteritems() if g in glyphs} |
Behdad Esfahbod | fd3923e | 2013-07-22 12:48:17 -0400 | [diff] [blame] | 832 | if not table.MarkAttachClassDef.classDefs: |
| 833 | table.MarkAttachClassDef = None |
| 834 | if table.GlyphClassDef: |
Behdad Esfahbod | dc0c483 | 2013-08-13 18:50:36 -0400 | [diff] [blame] | 835 | table.GlyphClassDef.classDefs = {g:v for g,v in table.GlyphClassDef.classDefs.iteritems() if g in glyphs} |
Behdad Esfahbod | fd3923e | 2013-07-22 12:48:17 -0400 | [diff] [blame] | 836 | if not table.GlyphClassDef.classDefs: |
| 837 | table.GlyphClassDef = None |
| 838 | if table.AttachList: |
Behdad Esfahbod | a6dbb7a | 2013-07-31 19:53:57 -0400 | [diff] [blame] | 839 | indices = table.AttachList.Coverage.subset (glyphs) |
Behdad Esfahbod | fd3923e | 2013-07-22 12:48:17 -0400 | [diff] [blame] | 840 | table.AttachList.AttachPoint = [table.AttachList.AttachPoint[i] for i in indices] |
| 841 | table.AttachList.GlyphCount = len (table.AttachList.AttachPoint) |
| 842 | if not table.AttachList.GlyphCount: |
| 843 | table.AttachList = None |
Behdad Esfahbod | 4027dd8 | 2013-07-23 10:56:04 -0400 | [diff] [blame] | 844 | return bool (table.LigCaretList or table.MarkAttachClassDef or table.GlyphClassDef or table.AttachList) |
Behdad Esfahbod | efb984a | 2013-07-21 22:26:16 -0400 | [diff] [blame] | 845 | |
Behdad Esfahbod | fd3923e | 2013-07-22 12:48:17 -0400 | [diff] [blame] | 846 | @add_method(fontTools.ttLib.getTableClass('kern')) |
Behdad Esfahbod | d4e33a7 | 2013-07-24 18:51:05 -0400 | [diff] [blame] | 847 | def prune_pre_subset (self, options): |
| 848 | # Prune unknown kern table types |
| 849 | self.kernTables = [t for t in self.kernTables if hasattr (t, 'kernTable')] |
| 850 | return bool (self.kernTables) |
| 851 | |
| 852 | @add_method(fontTools.ttLib.getTableClass('kern')) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 853 | def subset_glyphs (self, s): |
Behdad Esfahbod | a6dbb7a | 2013-07-31 19:53:57 -0400 | [diff] [blame] | 854 | glyphs = s.glyphs_gsubed |
Behdad Esfahbod | 5270ec4 | 2013-07-22 12:57:02 -0400 | [diff] [blame] | 855 | for t in self.kernTables: |
Behdad Esfahbod | dc0c483 | 2013-08-13 18:50:36 -0400 | [diff] [blame] | 856 | t.kernTable = {(a,b):v for ((a,b),v) in t.kernTable.iteritems() if a in glyphs and b in glyphs} |
Behdad Esfahbod | 5270ec4 | 2013-07-22 12:57:02 -0400 | [diff] [blame] | 857 | self.kernTables = [t for t in self.kernTables if t.kernTable] |
Behdad Esfahbod | 4027dd8 | 2013-07-23 10:56:04 -0400 | [diff] [blame] | 858 | return bool (self.kernTables) |
Behdad Esfahbod | efb984a | 2013-07-21 22:26:16 -0400 | [diff] [blame] | 859 | |
Behdad Esfahbod | 75e14fc | 2013-07-22 14:49:54 -0400 | [diff] [blame] | 860 | @add_method(fontTools.ttLib.getTableClass('hmtx'), fontTools.ttLib.getTableClass('vmtx')) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 861 | def subset_glyphs (self, s): |
Behdad Esfahbod | dc0c483 | 2013-08-13 18:50:36 -0400 | [diff] [blame] | 862 | self.metrics = {g:v for g,v in self.metrics.iteritems() if g in s.glyphs} |
Behdad Esfahbod | 4027dd8 | 2013-07-23 10:56:04 -0400 | [diff] [blame] | 863 | return bool (self.metrics) |
Behdad Esfahbod | c716044 | 2013-07-22 14:29:08 -0400 | [diff] [blame] | 864 | |
Behdad Esfahbod | 75e14fc | 2013-07-22 14:49:54 -0400 | [diff] [blame] | 865 | @add_method(fontTools.ttLib.getTableClass('hdmx')) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 866 | def subset_glyphs (self, s): |
Behdad Esfahbod | dc0c483 | 2013-08-13 18:50:36 -0400 | [diff] [blame] | 867 | self.hdmx = {sz:{g:v for g,v in l.iteritems() if g in s.glyphs} for (sz,l) in self.hdmx.iteritems()} |
Behdad Esfahbod | 4027dd8 | 2013-07-23 10:56:04 -0400 | [diff] [blame] | 868 | return bool (self.hdmx) |
Behdad Esfahbod | 75e14fc | 2013-07-22 14:49:54 -0400 | [diff] [blame] | 869 | |
Behdad Esfahbod | e45d6af | 2013-07-22 15:29:17 -0400 | [diff] [blame] | 870 | @add_method(fontTools.ttLib.getTableClass('VORG')) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 871 | def subset_glyphs (self, s): |
Behdad Esfahbod | dc0c483 | 2013-08-13 18:50:36 -0400 | [diff] [blame] | 872 | self.VOriginRecords = {g:v for g,v in self.VOriginRecords.iteritems() if g in s.glyphs} |
Behdad Esfahbod | e45d6af | 2013-07-22 15:29:17 -0400 | [diff] [blame] | 873 | self.numVertOriginYMetrics = len (self.VOriginRecords) |
| 874 | return True # Never drop; has default metrics |
| 875 | |
Behdad Esfahbod | 8c646f6 | 2013-07-22 15:06:23 -0400 | [diff] [blame] | 876 | @add_method(fontTools.ttLib.getTableClass('post')) |
Behdad Esfahbod | 8c486d8 | 2013-07-24 13:34:47 -0400 | [diff] [blame] | 877 | def prune_pre_subset (self, options): |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 878 | if not options.glyph_names: |
Behdad Esfahbod | 4264824 | 2013-07-23 12:56:06 -0400 | [diff] [blame] | 879 | self.formatType = 3.0 |
| 880 | return True |
| 881 | |
| 882 | @add_method(fontTools.ttLib.getTableClass('post')) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 883 | def subset_glyphs (self, s): |
Behdad Esfahbod | 4264824 | 2013-07-23 12:56:06 -0400 | [diff] [blame] | 884 | self.extraNames = [] # This seems to do it |
Behdad Esfahbod | c9dec9d | 2013-07-23 10:28:47 -0400 | [diff] [blame] | 885 | return True |
Behdad Esfahbod | 653e974 | 2013-07-22 15:17:12 -0400 | [diff] [blame] | 886 | |
Behdad Esfahbod | 4cf7a80 | 2013-07-24 16:08:35 -0400 | [diff] [blame] | 887 | # Copied from _g_l_y_f.py |
| 888 | ARG_1_AND_2_ARE_WORDS = 0x0001 # if set args are words otherwise they are bytes |
| 889 | ARGS_ARE_XY_VALUES = 0x0002 # if set args are xy values, otherwise they are points |
| 890 | ROUND_XY_TO_GRID = 0x0004 # for the xy values if above is true |
| 891 | WE_HAVE_A_SCALE = 0x0008 # Sx = Sy, otherwise scale == 1.0 |
| 892 | NON_OVERLAPPING = 0x0010 # set to same value for all components (obsolete!) |
| 893 | MORE_COMPONENTS = 0x0020 # indicates at least one more glyph after this one |
| 894 | WE_HAVE_AN_X_AND_Y_SCALE = 0x0040 # Sx, Sy |
| 895 | WE_HAVE_A_TWO_BY_TWO = 0x0080 # t00, t01, t10, t11 |
| 896 | WE_HAVE_INSTRUCTIONS = 0x0100 # instructions follow |
| 897 | USE_MY_METRICS = 0x0200 # apply these metrics to parent glyph |
| 898 | OVERLAP_COMPOUND = 0x0400 # used by Apple in GX fonts |
| 899 | SCALED_COMPONENT_OFFSET = 0x0800 # composite designed to have the component offset scaled (designed for Apple) |
| 900 | UNSCALED_COMPONENT_OFFSET = 0x1000 # composite designed not to have the component offset scaled (designed for MS) |
| 901 | |
| 902 | @add_method(fontTools.ttLib.getTableModule('glyf').Glyph) |
| 903 | def getComponentNamesFast (self, glyfTable): |
| 904 | if struct.unpack(">h", self.data[:2])[0] >= 0: |
| 905 | return [] # Not composite |
| 906 | data = self.data |
| 907 | i = 10 |
| 908 | components = [] |
| 909 | more = 1 |
| 910 | while more: |
| 911 | flags, glyphID = struct.unpack(">HH", data[i:i+4]) |
| 912 | i += 4 |
| 913 | flags = int(flags) |
| 914 | components.append (glyfTable.getGlyphName (int (glyphID))) |
| 915 | |
| 916 | if flags & ARG_1_AND_2_ARE_WORDS: i += 4 |
| 917 | else: i += 2 |
| 918 | if flags & WE_HAVE_A_SCALE: i += 2 |
| 919 | elif flags & WE_HAVE_AN_X_AND_Y_SCALE: i += 4 |
| 920 | elif flags & WE_HAVE_A_TWO_BY_TWO: i += 8 |
| 921 | more = flags & MORE_COMPONENTS |
| 922 | return components |
| 923 | |
| 924 | @add_method(fontTools.ttLib.getTableModule('glyf').Glyph) |
| 925 | def remapComponentsFast (self, indices): |
| 926 | if struct.unpack(">h", self.data[:2])[0] >= 0: |
| 927 | return # Not composite |
| 928 | data = bytearray (self.data) |
| 929 | i = 10 |
| 930 | more = 1 |
| 931 | while more: |
| 932 | flags = (data[i] << 8) | data[i+1] |
| 933 | glyphID = (data[i+2] << 8) | data[i+3] |
| 934 | # Remap |
| 935 | glyphID = indices.index (glyphID) |
| 936 | data[i+2] = glyphID >> 8 |
| 937 | data[i+3] = glyphID & 0xFF |
| 938 | i += 4 |
| 939 | flags = int(flags) |
| 940 | |
| 941 | if flags & ARG_1_AND_2_ARE_WORDS: i += 4 |
| 942 | else: i += 2 |
| 943 | if flags & WE_HAVE_A_SCALE: i += 2 |
| 944 | elif flags & WE_HAVE_AN_X_AND_Y_SCALE: i += 4 |
| 945 | elif flags & WE_HAVE_A_TWO_BY_TWO: i += 8 |
| 946 | more = flags & MORE_COMPONENTS |
| 947 | self.data = str (data) |
| 948 | |
Behdad Esfahbod | 6ec8854 | 2013-07-24 16:52:47 -0400 | [diff] [blame] | 949 | @add_method(fontTools.ttLib.getTableModule('glyf').Glyph) |
| 950 | def dropInstructionsFast (self): |
Behdad Esfahbod | 6ec8854 | 2013-07-24 16:52:47 -0400 | [diff] [blame] | 951 | numContours = struct.unpack(">h", self.data[:2])[0] |
| 952 | data = bytearray (self.data) |
| 953 | i = 10 |
| 954 | if numContours >= 0: |
| 955 | i += 2 * numContours # endPtsOfContours |
| 956 | instructionLen = (data[i] << 8) | data[i+1] |
| 957 | # Zero it |
| 958 | data[i] = data [i+1] = 0 |
| 959 | i += 2 |
Behdad Esfahbod | 0fb6988 | 2013-07-24 17:25:35 -0400 | [diff] [blame] | 960 | if instructionLen: |
| 961 | # Splice it out |
| 962 | data = data[:i] + data[i+instructionLen:] |
Behdad Esfahbod | 6ec8854 | 2013-07-24 16:52:47 -0400 | [diff] [blame] | 963 | else: |
| 964 | more = 1 |
| 965 | while more: |
| 966 | flags = (data[i] << 8) | data[i+1] |
| 967 | # Turn instruction flag off |
| 968 | flags &= ~WE_HAVE_INSTRUCTIONS |
| 969 | data[i+0] = flags >> 8 |
| 970 | data[i+1] = flags & 0xFF |
| 971 | i += 4 |
| 972 | flags = int(flags) |
| 973 | |
| 974 | if flags & ARG_1_AND_2_ARE_WORDS: i += 4 |
| 975 | else: i += 2 |
| 976 | if flags & WE_HAVE_A_SCALE: i += 2 |
| 977 | elif flags & WE_HAVE_AN_X_AND_Y_SCALE: i += 4 |
| 978 | elif flags & WE_HAVE_A_TWO_BY_TWO: i += 8 |
| 979 | more = flags & MORE_COMPONENTS |
| 980 | # Cut off |
| 981 | data = data[:i] |
| 982 | if len(data) % 4: |
| 983 | # add pad bytes |
| 984 | nPadBytes = 4 - (len(data) % 4) |
| 985 | for i in range (nPadBytes): |
| 986 | data.append (0) |
| 987 | self.data = str (data) |
| 988 | |
Behdad Esfahbod | 861d915 | 2013-07-22 16:47:24 -0400 | [diff] [blame] | 989 | @add_method(fontTools.ttLib.getTableClass('glyf')) |
Behdad Esfahbod | 254442b | 2013-07-31 14:20:13 -0400 | [diff] [blame] | 990 | def closure_glyphs (self, s): |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 991 | decompose = s.glyphs |
Behdad Esfahbod | abb50a1 | 2013-07-23 12:58:37 -0400 | [diff] [blame] | 992 | # I don't know if component glyphs can be composite themselves. |
| 993 | # We handle them anyway. |
| 994 | while True: |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 995 | components = set () |
Behdad Esfahbod | abb50a1 | 2013-07-23 12:58:37 -0400 | [diff] [blame] | 996 | for g in decompose: |
Behdad Esfahbod | 4cf7a80 | 2013-07-24 16:08:35 -0400 | [diff] [blame] | 997 | if g not in self.glyphs: |
Behdad Esfahbod | f8c20e4 | 2013-07-23 23:13:23 -0400 | [diff] [blame] | 998 | continue |
Behdad Esfahbod | 4cf7a80 | 2013-07-24 16:08:35 -0400 | [diff] [blame] | 999 | gl = self.glyphs[g] |
| 1000 | if hasattr (gl, "data"): |
| 1001 | for c in gl.getComponentNamesFast (self): |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 1002 | if c not in s.glyphs: |
| 1003 | components.add (c) |
Behdad Esfahbod | 4cf7a80 | 2013-07-24 16:08:35 -0400 | [diff] [blame] | 1004 | else: |
| 1005 | # TTX seems to expand gid0..3 always |
| 1006 | if gl.isComposite (): |
| 1007 | for c in gl.components: |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 1008 | if c.glyphName not in s.glyphs: |
| 1009 | components.add (c.glyphName) |
| 1010 | components = set (c for c in components if c not in s.glyphs) |
Behdad Esfahbod | abb50a1 | 2013-07-23 12:58:37 -0400 | [diff] [blame] | 1011 | if not components: |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 1012 | break |
| 1013 | decompose = components |
| 1014 | s.glyphs.update (components) |
Behdad Esfahbod | abb50a1 | 2013-07-23 12:58:37 -0400 | [diff] [blame] | 1015 | |
| 1016 | @add_method(fontTools.ttLib.getTableClass('glyf')) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 1017 | def subset_glyphs (self, s): |
Behdad Esfahbod | dc0c483 | 2013-08-13 18:50:36 -0400 | [diff] [blame] | 1018 | self.glyphs = {g:v for g,v in self.glyphs.iteritems() if g in s.glyphs} |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 1019 | indices = [i for i,g in enumerate (self.glyphOrder) if g in s.glyphs] |
Behdad Esfahbod | dc0c483 | 2013-08-13 18:50:36 -0400 | [diff] [blame] | 1020 | for v in self.glyphs.itervalues(): |
Behdad Esfahbod | 4cf7a80 | 2013-07-24 16:08:35 -0400 | [diff] [blame] | 1021 | if hasattr (v, "data"): |
| 1022 | v.remapComponentsFast (indices) |
| 1023 | else: |
| 1024 | pass # No need |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 1025 | self.glyphOrder = [g for g in self.glyphOrder if g in s.glyphs] |
Behdad Esfahbod | 4027dd8 | 2013-07-23 10:56:04 -0400 | [diff] [blame] | 1026 | return bool (self.glyphs) |
Behdad Esfahbod | 861d915 | 2013-07-22 16:47:24 -0400 | [diff] [blame] | 1027 | |
Behdad Esfahbod | ed98c61 | 2013-07-23 12:37:41 -0400 | [diff] [blame] | 1028 | @add_method(fontTools.ttLib.getTableClass('glyf')) |
Behdad Esfahbod | d7b6f8f | 2013-07-23 12:46:52 -0400 | [diff] [blame] | 1029 | def prune_post_subset (self, options): |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1030 | if not options.hinting: |
Behdad Esfahbod | dc0c483 | 2013-08-13 18:50:36 -0400 | [diff] [blame] | 1031 | for v in self.glyphs.itervalues(): |
Behdad Esfahbod | 6ec8854 | 2013-07-24 16:52:47 -0400 | [diff] [blame] | 1032 | if hasattr (v, "data"): |
| 1033 | v.dropInstructionsFast () |
| 1034 | else: |
| 1035 | v.program = fontTools.ttLib.tables.ttProgram.Program() |
| 1036 | v.program.fromBytecode([]) |
Behdad Esfahbod | ed98c61 | 2013-07-23 12:37:41 -0400 | [diff] [blame] | 1037 | return True |
| 1038 | |
Behdad Esfahbod | 2b677c8 | 2013-07-23 13:37:13 -0400 | [diff] [blame] | 1039 | @add_method(fontTools.ttLib.getTableClass('CFF ')) |
Behdad Esfahbod | 1a4e72e | 2013-08-13 15:46:37 -0400 | [diff] [blame] | 1040 | def prune_pre_subset (self, s): |
Behdad Esfahbod | 4e72186 | 2013-08-13 16:24:45 -0400 | [diff] [blame] | 1041 | cff = self.cff |
| 1042 | # CFF table should have one font only |
| 1043 | cff.fontNames = cff.fontNames[:1] |
| 1044 | return bool (cff.fontNames) |
Behdad Esfahbod | 1a4e72e | 2013-08-13 15:46:37 -0400 | [diff] [blame] | 1045 | |
| 1046 | @add_method(fontTools.ttLib.getTableClass('CFF ')) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 1047 | def subset_glyphs (self, s): |
Behdad Esfahbod | 1a4e72e | 2013-08-13 15:46:37 -0400 | [diff] [blame] | 1048 | cff = self.cff |
| 1049 | for fontname in cff.keys(): |
| 1050 | font = cff[fontname] |
| 1051 | cs = font.CharStrings |
| 1052 | if cs.charStringsAreIndexed: |
| 1053 | indices = [i for i,g in enumerate (font.charset) if g in s.glyphs] |
| 1054 | # Load all glyphs |
| 1055 | for g in font.charset: |
| 1056 | if g not in s.glyphs: continue |
| 1057 | cs.getItemAndSelector (g) |
Behdad Esfahbod | 1a4e72e | 2013-08-13 15:46:37 -0400 | [diff] [blame] | 1058 | csi = cs.charStringsIndex |
| 1059 | csi.items = [csi.items[i] for i in indices] |
| 1060 | csi.offsets = [] # Don't need it; loaded all glyphs |
Behdad Esfahbod | 31ebebe | 2013-08-13 16:02:33 -0400 | [diff] [blame] | 1061 | if hasattr (font, "FDSelect"): |
Behdad Esfahbod | 8e3b886 | 2013-08-13 16:02:18 -0400 | [diff] [blame] | 1062 | sel = font.FDSelect |
| 1063 | sel.format = None |
| 1064 | sel.gidArray = [font.FDSelect.gidArray[i] for i in indices] |
Behdad Esfahbod | dc0c483 | 2013-08-13 18:50:36 -0400 | [diff] [blame] | 1065 | cs.charStrings = {g:indices.index (v) for g,v in cs.charStrings.iteritems() if g in s.glyphs} |
Behdad Esfahbod | 1a4e72e | 2013-08-13 15:46:37 -0400 | [diff] [blame] | 1066 | else: |
Behdad Esfahbod | dc0c483 | 2013-08-13 18:50:36 -0400 | [diff] [blame] | 1067 | cs.charStrings = {g:v for g,v in cs.charStrings.iteritems() if g in s.glyphs} |
Behdad Esfahbod | 1a4e72e | 2013-08-13 15:46:37 -0400 | [diff] [blame] | 1068 | font.charset = [g for g in font.charset if g in s.glyphs] |
| 1069 | font.numGlyphs = len (font.charset) |
Behdad Esfahbod | 409286a | 2013-08-13 15:57:33 -0400 | [diff] [blame] | 1070 | return any (cff[fontname].numGlyphs for fontname in cff.keys()) |
Behdad Esfahbod | 1a4e72e | 2013-08-13 15:46:37 -0400 | [diff] [blame] | 1071 | |
| 1072 | @add_method(fontTools.ttLib.getTableClass('glyf')) |
| 1073 | def prune_post_subset (self, options): |
| 1074 | if not options.hinting: |
| 1075 | pass # Drop hints |
| 1076 | return True |
Behdad Esfahbod | 2b677c8 | 2013-07-23 13:37:13 -0400 | [diff] [blame] | 1077 | |
Behdad Esfahbod | 653e974 | 2013-07-22 15:17:12 -0400 | [diff] [blame] | 1078 | @add_method(fontTools.ttLib.getTableClass('cmap')) |
Behdad Esfahbod | 8c8ff45 | 2013-07-31 19:47:37 -0400 | [diff] [blame] | 1079 | def closure_glyphs (self, s): |
| 1080 | tables = [t for t in self.tables if t.platformID == 3 and t.platEncID in [1, 10]] |
Behdad Esfahbod | 98259f2 | 2013-07-31 20:16:24 -0400 | [diff] [blame] | 1081 | for u in s.unicodes_requested: |
Behdad Esfahbod | 8c8ff45 | 2013-07-31 19:47:37 -0400 | [diff] [blame] | 1082 | found = False |
| 1083 | for table in tables: |
| 1084 | if u in table.cmap: |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 1085 | s.glyphs.add (table.cmap[u]) |
Behdad Esfahbod | 8c8ff45 | 2013-07-31 19:47:37 -0400 | [diff] [blame] | 1086 | found = True |
| 1087 | break |
| 1088 | if not found: |
| 1089 | s.log ("No glyph for Unicode value %s; skipping." % u) |
Behdad Esfahbod | 8c8ff45 | 2013-07-31 19:47:37 -0400 | [diff] [blame] | 1090 | |
| 1091 | @add_method(fontTools.ttLib.getTableClass('cmap')) |
Behdad Esfahbod | abb50a1 | 2013-07-23 12:58:37 -0400 | [diff] [blame] | 1092 | def prune_pre_subset (self, options): |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1093 | if not options.legacy_cmap: |
Behdad Esfahbod | de4a15b | 2013-07-23 13:05:42 -0400 | [diff] [blame] | 1094 | # Drop non-Unicode / non-Symbol cmaps |
| 1095 | self.tables = [t for t in self.tables if t.platformID == 3 and t.platEncID in [0, 1, 10]] |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1096 | if not options.symbol_cmap: |
Behdad Esfahbod | de4a15b | 2013-07-23 13:05:42 -0400 | [diff] [blame] | 1097 | self.tables = [t for t in self.tables if t.platformID == 3 and t.platEncID in [1, 10]] |
Behdad Esfahbod | abb50a1 | 2013-07-23 12:58:37 -0400 | [diff] [blame] | 1098 | # TODO Only keep one subtable? |
Behdad Esfahbod | abb50a1 | 2013-07-23 12:58:37 -0400 | [diff] [blame] | 1099 | # For now, drop format=0 which can't be subset_glyphs easily? |
| 1100 | self.tables = [t for t in self.tables if t.format != 0] |
| 1101 | return bool (self.tables) |
| 1102 | |
| 1103 | @add_method(fontTools.ttLib.getTableClass('cmap')) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 1104 | def subset_glyphs (self, s): |
Behdad Esfahbod | a6dbb7a | 2013-07-31 19:53:57 -0400 | [diff] [blame] | 1105 | s.glyphs = s.glyphs_cmaped |
Behdad Esfahbod | 653e974 | 2013-07-22 15:17:12 -0400 | [diff] [blame] | 1106 | for t in self.tables: |
Behdad Esfahbod | 9453a36 | 2013-07-22 16:21:24 -0400 | [diff] [blame] | 1107 | # For reasons I don't understand I need this here |
| 1108 | # to force decompilation of the cmap format 14. |
| 1109 | try: |
| 1110 | getattr (t, "asdf") |
| 1111 | except AttributeError: |
| 1112 | pass |
Behdad Esfahbod | b13d790 | 2013-07-22 16:01:15 -0400 | [diff] [blame] | 1113 | if t.format == 14: |
Behdad Esfahbod | 9453a36 | 2013-07-22 16:21:24 -0400 | [diff] [blame] | 1114 | # XXX We drop all the default-UVS mappings (g==None) |
Behdad Esfahbod | dc0c483 | 2013-08-13 18:50:36 -0400 | [diff] [blame] | 1115 | t.uvsDict = {v:[(u,g) for (u,g) in l if g in s.glyphs] for (v,l) in t.uvsDict.iteritems()} |
| 1116 | t.uvsDict = {v:l for (v,l) in t.uvsDict.iteritems() if l} |
Behdad Esfahbod | b13d790 | 2013-07-22 16:01:15 -0400 | [diff] [blame] | 1117 | else: |
Behdad Esfahbod | dc0c483 | 2013-08-13 18:50:36 -0400 | [diff] [blame] | 1118 | t.cmap = {u:g for (u,g) in t.cmap.iteritems() if g in s.glyphs_requested or u in s.unicodes_requested} |
Behdad Esfahbod | b13d790 | 2013-07-22 16:01:15 -0400 | [diff] [blame] | 1119 | self.tables = [t for t in self.tables if (t.cmap if t.format != 14 else t.uvsDict)] |
Behdad Esfahbod | 7e4bfc3 | 2013-07-22 18:47:32 -0400 | [diff] [blame] | 1120 | # XXX Convert formats when needed |
Behdad Esfahbod | 2ac3630 | 2013-08-08 23:49:00 -0400 | [diff] [blame] | 1121 | # In particular, if we have a format=12 without non-BMP |
| 1122 | # characters, either drop format=12 one or convert it |
| 1123 | # to format=4 if there's not one. |
Behdad Esfahbod | 61addb4 | 2013-07-23 11:03:49 -0400 | [diff] [blame] | 1124 | return bool (self.tables) |
| 1125 | |
Behdad Esfahbod | 61addb4 | 2013-07-23 11:03:49 -0400 | [diff] [blame] | 1126 | @add_method(fontTools.ttLib.getTableClass('name')) |
Behdad Esfahbod | d7b6f8f | 2013-07-23 12:46:52 -0400 | [diff] [blame] | 1127 | def prune_pre_subset (self, options): |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1128 | if '*' not in options.name_IDs: |
| 1129 | self.names = [n for n in self.names if n.nameID in options.name_IDs] |
| 1130 | if not options.name_legacy: |
Behdad Esfahbod | 20faeb0 | 2013-07-23 13:19:03 -0400 | [diff] [blame] | 1131 | self.names = [n for n in self.names if n.platformID == 3 and n.platEncID == 1] |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1132 | if '*' not in options.name_languages: |
| 1133 | self.names = [n for n in self.names if n.langID in options.name_languages] |
Behdad Esfahbod | 20faeb0 | 2013-07-23 13:19:03 -0400 | [diff] [blame] | 1134 | return True # Retain even if empty |
Behdad Esfahbod | 653e974 | 2013-07-22 15:17:12 -0400 | [diff] [blame] | 1135 | |
Behdad Esfahbod | 8c646f6 | 2013-07-22 15:06:23 -0400 | [diff] [blame] | 1136 | |
Behdad Esfahbod | 75e14fc | 2013-07-22 14:49:54 -0400 | [diff] [blame] | 1137 | # TODO OS/2 ulUnicodeRange / ulCodePageRange? |
Behdad Esfahbod | f71267b | 2013-07-23 12:59:13 -0400 | [diff] [blame] | 1138 | # TODO Drop unneeded GSUB/GPOS Script/LangSys entries |
Behdad Esfahbod | 398d389 | 2013-07-23 15:29:40 -0400 | [diff] [blame] | 1139 | # TODO Avoid recursing too much |
Behdad Esfahbod | e94aa0e | 2013-07-23 13:22:04 -0400 | [diff] [blame] | 1140 | # TODO Text direction considerations |
| 1141 | # TODO Text script / language considerations |
Behdad Esfahbod | b3ee60c | 2013-07-24 19:21:40 -0400 | [diff] [blame] | 1142 | # TODO Drop unknown tables? Using DefaultTable.prune? |
Behdad Esfahbod | 8c4f7cc | 2013-07-24 17:58:29 -0400 | [diff] [blame] | 1143 | # TODO Drop GPOS Device records if not hinting? |
Behdad Esfahbod | 93e2636 | 2013-08-09 14:22:48 -0400 | [diff] [blame] | 1144 | # TODO Move font name loading hack to Subsetter? |
Behdad Esfahbod | 56ebd04 | 2013-07-22 13:02:24 -0400 | [diff] [blame] | 1145 | |
Behdad Esfahbod | 8c486d8 | 2013-07-24 13:34:47 -0400 | [diff] [blame] | 1146 | |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 1147 | class Subsetter: |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1148 | |
| 1149 | class Options: |
Behdad Esfahbod | 26d9ee7 | 2013-08-13 16:55:01 -0400 | [diff] [blame] | 1150 | |
| 1151 | class UnknownOptionError (Exception): |
| 1152 | pass |
| 1153 | |
Behdad Esfahbod | 9eeeb4e | 2013-08-13 16:58:50 -0400 | [diff] [blame] | 1154 | drop_tables_default = ['BASE', 'JSTF', 'DSIG', 'EBDT', 'EBLC', 'EBSC', 'PCLT', 'LTSH'] |
| 1155 | drop_tables_default += ['Feat', 'Glat', 'Gloc', 'Silf', 'Sill'] # Graphite |
| 1156 | drop_tables_default += ['CBLC', 'CBDT', 'sbix', 'COLR', 'CPAL'] # Color |
| 1157 | no_subset_tables_default = ['gasp', 'head', 'hhea', 'maxp', 'vhea', 'OS/2', 'loca', 'name', 'cvt ', 'fpgm', 'prep'] |
| 1158 | hinting_tables_default = ['cvt ', 'fpgm', 'prep', 'hdmx', 'VDMX'] |
| 1159 | |
| 1160 | # Based on HarfBuzz shapers |
| 1161 | layout_features_groups = { |
| 1162 | # Default shaper |
| 1163 | 'common': ['ccmp', 'liga', 'locl', 'mark', 'mkmk', 'rlig'], |
| 1164 | 'horizontal': ['calt', 'clig', 'curs', 'kern', 'rclt'], |
| 1165 | 'vertical': ['valt', 'vert', 'vkrn', 'vpal', 'vrt2'], |
| 1166 | 'ltr': ['ltra', 'ltrm'], |
| 1167 | 'rtl': ['rtla', 'rtlm'], |
| 1168 | # Complex shapers |
| 1169 | 'arabic': ['init', 'medi', 'fina', 'isol', 'med2', 'fin2', 'fin3', 'cswh', 'mset'], |
| 1170 | 'hangul': ['ljmo', 'vjmo', 'tjmo'], |
| 1171 | 'tibetal': ['abvs', 'blws', 'abvm', 'blwm'], |
| 1172 | 'indic': ['nukt', 'akhn', 'rphf', 'rkrf', 'pref', 'blwf', 'half', 'abvf', 'pstf', 'cfar', 'vatu', 'cjct', |
| 1173 | 'init', 'pres', 'abvs', 'blws', 'psts', 'haln', 'dist', 'abvm', 'blwm'], |
| 1174 | } |
Behdad Esfahbod | dc0c483 | 2013-08-13 18:50:36 -0400 | [diff] [blame] | 1175 | layout_features_default = unique_sorted (sum (layout_features_groups.itervalues(), [])) |
Behdad Esfahbod | 9eeeb4e | 2013-08-13 16:58:50 -0400 | [diff] [blame] | 1176 | |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1177 | drop_tables = drop_tables_default |
Behdad Esfahbod | e6fc8ca | 2013-08-13 12:25:31 -0400 | [diff] [blame] | 1178 | no_subset_tables = no_subset_tables_default |
| 1179 | hinting_tables = hinting_tables_default |
Behdad Esfahbod | 9eeeb4e | 2013-08-13 16:58:50 -0400 | [diff] [blame] | 1180 | layout_features = layout_features_default |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1181 | hinting = False |
| 1182 | glyph_names = False |
| 1183 | legacy_cmap = False |
| 1184 | symbol_cmap = False |
| 1185 | name_IDs = [1, 2] # Family and Style |
| 1186 | name_legacy = False |
| 1187 | name_languages = [0x0409] # English |
| 1188 | mandatory_glyphs = True # First four for TrueType, .notdef for CFF |
| 1189 | recalc_bboxes = False # Slows us down |
| 1190 | |
| 1191 | def __init__ (self, **kwargs): |
| 1192 | |
| 1193 | self.set (**kwargs) |
| 1194 | |
| 1195 | def set (self, **kwargs): |
Behdad Esfahbod | dc0c483 | 2013-08-13 18:50:36 -0400 | [diff] [blame] | 1196 | for k,v in kwargs.iteritems(): |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1197 | if not hasattr (self, k): |
Behdad Esfahbod | 26d9ee7 | 2013-08-13 16:55:01 -0400 | [diff] [blame] | 1198 | raise self.UnknownOptionError ("Unknown option '%s'" % k) |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1199 | setattr (self, k, v) |
| 1200 | |
| 1201 | def parse_opts (self, argv, ignore_unknown=False): |
| 1202 | ret = [] |
| 1203 | opts = {} |
| 1204 | for a in argv: |
Behdad Esfahbod | 9ec5215 | 2013-08-13 14:04:44 -0400 | [diff] [blame] | 1205 | orig_a = a |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1206 | if not a.startswith ('--'): |
| 1207 | ret.append (a) |
| 1208 | continue |
| 1209 | a = a[2:] |
| 1210 | i = a.find ('=') |
| 1211 | if i == -1: |
| 1212 | if a.startswith ("no-"): |
| 1213 | k = a[3:] |
| 1214 | v = False |
| 1215 | else: |
| 1216 | k = a |
| 1217 | v = True |
| 1218 | else: |
| 1219 | k = a[:i] |
| 1220 | v = a[i+1:] |
| 1221 | k = k.replace ('-', '_') |
| 1222 | if not hasattr (self, k): |
Behdad Esfahbod | 9ec5215 | 2013-08-13 14:04:44 -0400 | [diff] [blame] | 1223 | if ignore_unknown == True or k in ignore_unknown: |
| 1224 | ret.append (orig_a) |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1225 | continue |
| 1226 | else: |
Behdad Esfahbod | 26d9ee7 | 2013-08-13 16:55:01 -0400 | [diff] [blame] | 1227 | raise self.UnknownOptionError ("Unknown option '%s'" % a) |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1228 | |
| 1229 | ov = getattr (self, k) |
| 1230 | if isinstance (ov, bool): |
| 1231 | v = bool (v) |
| 1232 | elif isinstance (ov, int): |
| 1233 | v = int (v) |
| 1234 | elif isinstance (ov, list): |
| 1235 | v = v.split (',') |
| 1236 | v = [int (x, 0) if x[0] in range (10) else x for x in v] |
| 1237 | |
| 1238 | opts[k] = v |
| 1239 | self.set (**opts) |
| 1240 | |
| 1241 | return ret |
| 1242 | |
| 1243 | |
Behdad Esfahbod | d1c66ec | 2013-08-13 12:30:14 -0400 | [diff] [blame] | 1244 | def __init__ (self, options=None, log=None): |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1245 | |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1246 | if not log: |
| 1247 | log = Logger() |
| 1248 | if not options: |
| 1249 | options = Options() |
| 1250 | |
Behdad Esfahbod | 88264a6 | 2013-07-31 14:45:13 -0400 | [diff] [blame] | 1251 | self.options = options |
Behdad Esfahbod | df3d757 | 2013-07-31 15:03:43 -0400 | [diff] [blame] | 1252 | self.log = log |
Behdad Esfahbod | c4eb3db | 2013-07-31 19:56:19 -0400 | [diff] [blame] | 1253 | self.unicodes_requested = set () |
| 1254 | self.glyphs_requested = set () |
Behdad Esfahbod | a7d2243 | 2013-08-13 12:47:48 -0400 | [diff] [blame] | 1255 | self.glyphs = set () |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 1256 | |
Behdad Esfahbod | 618c086 | 2013-07-31 20:11:17 -0400 | [diff] [blame] | 1257 | def populate (self, glyphs=[], unicodes=[], text=""): |
Behdad Esfahbod | c4eb3db | 2013-07-31 19:56:19 -0400 | [diff] [blame] | 1258 | self.unicodes_requested.update (unicodes) |
Behdad Esfahbod | 98259f2 | 2013-07-31 20:16:24 -0400 | [diff] [blame] | 1259 | if isinstance (text, str): |
Behdad Esfahbod | 618c086 | 2013-07-31 20:11:17 -0400 | [diff] [blame] | 1260 | text = text.decode ("utf8") |
Behdad Esfahbod | 8c8ff45 | 2013-07-31 19:47:37 -0400 | [diff] [blame] | 1261 | for u in text: |
Behdad Esfahbod | 618c086 | 2013-07-31 20:11:17 -0400 | [diff] [blame] | 1262 | self.unicodes_requested.add (ord (u)) |
Behdad Esfahbod | c4eb3db | 2013-07-31 19:56:19 -0400 | [diff] [blame] | 1263 | self.glyphs_requested.update (glyphs) |
Behdad Esfahbod | a7d2243 | 2013-08-13 12:47:48 -0400 | [diff] [blame] | 1264 | self.glyphs.update (glyphs) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 1265 | |
Behdad Esfahbod | d1c66ec | 2013-08-13 12:30:14 -0400 | [diff] [blame] | 1266 | def pre_prune (self, font): |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1267 | |
Behdad Esfahbod | d1c66ec | 2013-08-13 12:30:14 -0400 | [diff] [blame] | 1268 | for tag in font.keys(): |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1269 | if tag == 'GlyphOrder': continue |
| 1270 | |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1271 | if tag in self.options.drop_tables or \ |
Behdad Esfahbod | e6fc8ca | 2013-08-13 12:25:31 -0400 | [diff] [blame] | 1272 | (tag in self.options.hinting_tables and not self.options.hinting): |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1273 | self.log (tag, "dropped") |
Behdad Esfahbod | d1c66ec | 2013-08-13 12:30:14 -0400 | [diff] [blame] | 1274 | del font[tag] |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1275 | continue |
| 1276 | |
| 1277 | clazz = fontTools.ttLib.getTableClass(tag) |
| 1278 | |
| 1279 | if hasattr (clazz, 'prune_pre_subset'): |
Behdad Esfahbod | d1c66ec | 2013-08-13 12:30:14 -0400 | [diff] [blame] | 1280 | table = font[tag] |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1281 | retain = table.prune_pre_subset (self.options) |
| 1282 | self.log.lapse ("prune '%s'" % tag) |
| 1283 | if not retain: |
| 1284 | self.log (tag, "pruned to empty; dropped") |
Behdad Esfahbod | d1c66ec | 2013-08-13 12:30:14 -0400 | [diff] [blame] | 1285 | del font[tag] |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1286 | continue |
| 1287 | else: |
| 1288 | self.log (tag, "pruned") |
| 1289 | |
Behdad Esfahbod | d1c66ec | 2013-08-13 12:30:14 -0400 | [diff] [blame] | 1290 | def closure_glyphs (self, font): |
Behdad Esfahbod | 2fb90e2 | 2013-07-31 20:04:08 -0400 | [diff] [blame] | 1291 | |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 1292 | self.glyphs = self.glyphs_requested.copy () |
Behdad Esfahbod | 98259f2 | 2013-07-31 20:16:24 -0400 | [diff] [blame] | 1293 | |
Behdad Esfahbod | d1c66ec | 2013-08-13 12:30:14 -0400 | [diff] [blame] | 1294 | if 'cmap' in font: |
| 1295 | font['cmap'].closure_glyphs (self) |
Behdad Esfahbod | 2fb90e2 | 2013-07-31 20:04:08 -0400 | [diff] [blame] | 1296 | self.glyphs_cmaped = self.glyphs |
| 1297 | |
| 1298 | if self.options.mandatory_glyphs: |
Behdad Esfahbod | d1c66ec | 2013-08-13 12:30:14 -0400 | [diff] [blame] | 1299 | if 'glyf' in font: |
Behdad Esfahbod | 2fb90e2 | 2013-07-31 20:04:08 -0400 | [diff] [blame] | 1300 | for i in range (4): |
Behdad Esfahbod | d1c66ec | 2013-08-13 12:30:14 -0400 | [diff] [blame] | 1301 | self.glyphs.add (font.getGlyphName (i)) |
Behdad Esfahbod | 2fb90e2 | 2013-07-31 20:04:08 -0400 | [diff] [blame] | 1302 | self.log ("Added first four glyphs to subset") |
| 1303 | else: |
| 1304 | self.glyphs.add ('.notdef') |
| 1305 | self.log ("Added .notdef glyph to subset") |
| 1306 | |
Behdad Esfahbod | d1c66ec | 2013-08-13 12:30:14 -0400 | [diff] [blame] | 1307 | if 'GSUB' in font: |
Behdad Esfahbod | 8c8ff45 | 2013-07-31 19:47:37 -0400 | [diff] [blame] | 1308 | self.log ("Closing glyph list over 'GSUB': %d glyphs before" % len (self.glyphs)) |
Behdad Esfahbod | d1c66ec | 2013-08-13 12:30:14 -0400 | [diff] [blame] | 1309 | self.log.glyphs (self.glyphs, font=font) |
| 1310 | font['GSUB'].closure_glyphs (self) |
Behdad Esfahbod | 8c8ff45 | 2013-07-31 19:47:37 -0400 | [diff] [blame] | 1311 | self.log ("Closed glyph list over 'GSUB': %d glyphs after" % len (self.glyphs)) |
Behdad Esfahbod | d1c66ec | 2013-08-13 12:30:14 -0400 | [diff] [blame] | 1312 | self.log.glyphs (self.glyphs, font=font) |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1313 | self.log.lapse ("close glyph list over 'GSUB'") |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 1314 | self.glyphs_gsubed = self.glyphs.copy () |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1315 | |
Behdad Esfahbod | d1c66ec | 2013-08-13 12:30:14 -0400 | [diff] [blame] | 1316 | if 'glyf' in font: |
Behdad Esfahbod | 8c8ff45 | 2013-07-31 19:47:37 -0400 | [diff] [blame] | 1317 | self.log ("Closing glyph list over 'glyf': %d glyphs before" % len (self.glyphs)) |
Behdad Esfahbod | d1c66ec | 2013-08-13 12:30:14 -0400 | [diff] [blame] | 1318 | self.log.glyphs (self.glyphs, font=font) |
| 1319 | font['glyf'].closure_glyphs (self) |
Behdad Esfahbod | 8c8ff45 | 2013-07-31 19:47:37 -0400 | [diff] [blame] | 1320 | self.log ("Closed glyph list over 'glyf': %d glyphs after" % len (self.glyphs)) |
Behdad Esfahbod | d1c66ec | 2013-08-13 12:30:14 -0400 | [diff] [blame] | 1321 | self.log.glyphs (self.glyphs, font=font) |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1322 | self.log.lapse ("close glyph list over 'glyf'") |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 1323 | self.glyphs_glyfed = self.glyphs.copy () |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1324 | |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 1325 | self.glyphs_all = self.glyphs.copy () |
Behdad Esfahbod | 8c8ff45 | 2013-07-31 19:47:37 -0400 | [diff] [blame] | 1326 | |
| 1327 | self.log ("Retaining %d glyphs: " % len (self.glyphs_all)) |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1328 | |
Behdad Esfahbod | d1c66ec | 2013-08-13 12:30:14 -0400 | [diff] [blame] | 1329 | def subset_glyphs (self, font): |
| 1330 | for tag in font.keys(): |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1331 | if tag == 'GlyphOrder': continue |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1332 | clazz = fontTools.ttLib.getTableClass(tag) |
| 1333 | |
Behdad Esfahbod | e6fc8ca | 2013-08-13 12:25:31 -0400 | [diff] [blame] | 1334 | if tag in self.options.no_subset_tables: |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1335 | self.log (tag, "subsetting not needed") |
| 1336 | elif hasattr (clazz, 'subset_glyphs'): |
Behdad Esfahbod | d1c66ec | 2013-08-13 12:30:14 -0400 | [diff] [blame] | 1337 | table = font[tag] |
Behdad Esfahbod | a6dbb7a | 2013-07-31 19:53:57 -0400 | [diff] [blame] | 1338 | self.glyphs = self.glyphs_all |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1339 | retain = table.subset_glyphs (self) |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 1340 | self.glyphs = self.glyphs_all |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1341 | self.log.lapse ("subset '%s'" % tag) |
| 1342 | if not retain: |
| 1343 | self.log (tag, "subsetted to empty; dropped") |
Behdad Esfahbod | d1c66ec | 2013-08-13 12:30:14 -0400 | [diff] [blame] | 1344 | del font[tag] |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1345 | else: |
| 1346 | self.log (tag, "subsetted") |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1347 | else: |
Behdad Esfahbod | e6fc8ca | 2013-08-13 12:25:31 -0400 | [diff] [blame] | 1348 | self.log (tag, "NOT subset; don't know how to subset; dropped") |
Behdad Esfahbod | d1c66ec | 2013-08-13 12:30:14 -0400 | [diff] [blame] | 1349 | del font[tag] |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1350 | |
Behdad Esfahbod | d1c66ec | 2013-08-13 12:30:14 -0400 | [diff] [blame] | 1351 | glyphOrder = font.getGlyphOrder() |
Behdad Esfahbod | 2fb90e2 | 2013-07-31 20:04:08 -0400 | [diff] [blame] | 1352 | glyphOrder = [g for g in glyphOrder if g in self.glyphs_all] |
Behdad Esfahbod | d1c66ec | 2013-08-13 12:30:14 -0400 | [diff] [blame] | 1353 | font.setGlyphOrder (glyphOrder) |
| 1354 | font._buildReverseGlyphOrderDict () |
Behdad Esfahbod | 2fb90e2 | 2013-07-31 20:04:08 -0400 | [diff] [blame] | 1355 | self.log.lapse ("subset GlyphOrder") |
| 1356 | |
Behdad Esfahbod | d1c66ec | 2013-08-13 12:30:14 -0400 | [diff] [blame] | 1357 | def post_prune (self, font): |
| 1358 | for tag in font.keys(): |
Behdad Esfahbod | 2fb90e2 | 2013-07-31 20:04:08 -0400 | [diff] [blame] | 1359 | if tag == 'GlyphOrder': continue |
| 1360 | clazz = fontTools.ttLib.getTableClass(tag) |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1361 | if hasattr (clazz, 'prune_post_subset'): |
Behdad Esfahbod | d1c66ec | 2013-08-13 12:30:14 -0400 | [diff] [blame] | 1362 | table = font[tag] |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1363 | retain = table.prune_post_subset (self.options) |
| 1364 | self.log.lapse ("prune '%s'" % tag) |
| 1365 | if not retain: |
| 1366 | self.log (tag, "pruned to empty; dropped") |
Behdad Esfahbod | d1c66ec | 2013-08-13 12:30:14 -0400 | [diff] [blame] | 1367 | del font[tag] |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1368 | else: |
| 1369 | self.log (tag, "pruned") |
| 1370 | |
Behdad Esfahbod | d1c66ec | 2013-08-13 12:30:14 -0400 | [diff] [blame] | 1371 | def subset (self, font): |
Behdad Esfahbod | 756af49 | 2013-08-01 12:05:26 -0400 | [diff] [blame] | 1372 | |
Behdad Esfahbod | d1c66ec | 2013-08-13 12:30:14 -0400 | [diff] [blame] | 1373 | font.recalcBBoxes = self.options.recalc_bboxes |
Behdad Esfahbod | 98259f2 | 2013-07-31 20:16:24 -0400 | [diff] [blame] | 1374 | |
Behdad Esfahbod | d1c66ec | 2013-08-13 12:30:14 -0400 | [diff] [blame] | 1375 | self.pre_prune (font) |
| 1376 | self.closure_glyphs (font) |
| 1377 | self.subset_glyphs (font) |
| 1378 | self.post_prune (font) |
Behdad Esfahbod | 98259f2 | 2013-07-31 20:16:24 -0400 | [diff] [blame] | 1379 | |
Behdad Esfahbod | 756af49 | 2013-08-01 12:05:26 -0400 | [diff] [blame] | 1380 | |
Behdad Esfahbod | df3d757 | 2013-07-31 15:03:43 -0400 | [diff] [blame] | 1381 | import sys, time |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1382 | |
Behdad Esfahbod | df3d757 | 2013-07-31 15:03:43 -0400 | [diff] [blame] | 1383 | class Logger: |
| 1384 | |
| 1385 | def __init__ (self, verbose=False, xml=False, timing=False): |
| 1386 | self.verbose = verbose |
| 1387 | self.xml = xml |
| 1388 | self.timing = timing |
| 1389 | self.last_time = self.start_time = time.time () |
| 1390 | |
| 1391 | def parse_opts (self, argv): |
| 1392 | argv = argv[:] |
| 1393 | for v in ['verbose', 'xml', 'timing']: |
| 1394 | if "--"+v in argv: |
| 1395 | setattr (self, v, True) |
| 1396 | argv.remove ("--"+v) |
| 1397 | return argv |
| 1398 | |
| 1399 | def __call__ (self, *things): |
| 1400 | if not self.verbose: |
| 1401 | return |
| 1402 | print ' '.join (str (x) for x in things) |
| 1403 | |
| 1404 | def lapse (self, *things): |
| 1405 | if not self.timing: |
| 1406 | return |
| 1407 | new_time = time.time () |
| 1408 | print "Took %0.3fs to %s" % (new_time - self.last_time, ' '.join (str (x) for x in things)) |
| 1409 | self.last_time = new_time |
| 1410 | |
Behdad Esfahbod | f549784 | 2013-08-08 21:57:02 -0400 | [diff] [blame] | 1411 | def glyphs (self, glyphs, glyph_names=True, font=None): |
| 1412 | self ("Names: ", sorted (glyphs)) |
| 1413 | if font: |
Behdad Esfahbod | db6d2e9 | 2013-08-13 12:42:12 -0400 | [diff] [blame] | 1414 | reverseGlyphMap = font.getReverseGlyphMap () |
| 1415 | self ("Gids : ", sorted (reverseGlyphMap[g] for g in glyphs)) |
Behdad Esfahbod | f549784 | 2013-08-08 21:57:02 -0400 | [diff] [blame] | 1416 | |
Behdad Esfahbod | df3d757 | 2013-07-31 15:03:43 -0400 | [diff] [blame] | 1417 | def font (self, font, file=sys.stdout): |
| 1418 | if not self.xml: |
| 1419 | return |
Behdad Esfahbod | 9a49ead | 2013-08-13 16:51:59 -0400 | [diff] [blame] | 1420 | import xmlWriter |
Behdad Esfahbod | df3d757 | 2013-07-31 15:03:43 -0400 | [diff] [blame] | 1421 | writer = xmlWriter.XMLWriter (file) |
| 1422 | font.disassembleInstructions = False # Work around ttx bug |
| 1423 | for tag in font.keys(): |
| 1424 | writer.begintag (tag) |
| 1425 | writer.newline () |
| 1426 | font[tag].toXML(writer, font) |
| 1427 | writer.endtag (tag) |
| 1428 | writer.newline () |
| 1429 | |
Behdad Esfahbod | f6b668e | 2013-08-13 12:20:59 -0400 | [diff] [blame] | 1430 | |
| 1431 | def load_font (fontfile, dont_load_glyph_names=False): |
| 1432 | |
| 1433 | # TODO Option for ignoreDecompileErrors? |
| 1434 | |
| 1435 | font = fontTools.ttx.TTFont (fontfile) |
| 1436 | |
| 1437 | # Hack: |
| 1438 | # |
| 1439 | # If we don't need glyph names, change 'post' class to not try to |
| 1440 | # load them. It avoid lots of headache with broken fonts as well |
| 1441 | # as loading time. |
| 1442 | # |
| 1443 | # Ideally ttLib should provide a way to ask it to skip loading |
| 1444 | # glyph names. But it currently doesn't provide such a thing. |
| 1445 | # |
| 1446 | if dont_load_glyph_names: |
| 1447 | post = fontTools.ttLib.getTableClass('post') |
| 1448 | saved = post.decode_format_2_0 |
| 1449 | post.decode_format_2_0 = post.decode_format_3_0 |
| 1450 | f = font['post'] |
| 1451 | if f.formatType == 2.0: |
| 1452 | f.formatType = 3.0 |
| 1453 | post.decode_format_2_0 = saved |
| 1454 | |
| 1455 | return font |
| 1456 | |
| 1457 | |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1458 | def main (args): |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 1459 | |
Behdad Esfahbod | df3d757 | 2013-07-31 15:03:43 -0400 | [diff] [blame] | 1460 | log = Logger () |
| 1461 | args = log.parse_opts (args) |
Behdad Esfahbod | 4ae8171 | 2013-07-22 11:57:13 -0400 | [diff] [blame] | 1462 | |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1463 | options = Subsetter.Options () |
Behdad Esfahbod | 9ec5215 | 2013-08-13 14:04:44 -0400 | [diff] [blame] | 1464 | args = options.parse_opts (args, ignore_unknown=['text']) |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1465 | |
Behdad Esfahbod | df3d757 | 2013-07-31 15:03:43 -0400 | [diff] [blame] | 1466 | if len (args) < 2: |
Behdad Esfahbod | 02b9206 | 2013-07-21 18:40:59 -0400 | [diff] [blame] | 1467 | print >>sys.stderr, "usage: pyotlss.py font-file glyph..." |
| 1468 | sys.exit (1) |
| 1469 | |
Behdad Esfahbod | df3d757 | 2013-07-31 15:03:43 -0400 | [diff] [blame] | 1470 | fontfile = args[0] |
Behdad Esfahbod | e7f5a89 | 2013-07-31 19:58:59 -0400 | [diff] [blame] | 1471 | args = args[1:] |
Behdad Esfahbod | 02b9206 | 2013-07-21 18:40:59 -0400 | [diff] [blame] | 1472 | |
Behdad Esfahbod | f6b668e | 2013-08-13 12:20:59 -0400 | [diff] [blame] | 1473 | dont_load_glyph_names = not options.glyph_names and \ |
| 1474 | all (any (g.startswith (p) \ |
| 1475 | for p in ['gid', 'glyph', 'uni', 'U+']) \ |
| 1476 | for g in args) |
| 1477 | |
| 1478 | font = load_font (fontfile, dont_load_glyph_names=dont_load_glyph_names) |
Behdad Esfahbod | d1c66ec | 2013-08-13 12:30:14 -0400 | [diff] [blame] | 1479 | subsetter = Subsetter (options=options, log=log) |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1480 | log.lapse ("load font") |
Behdad Esfahbod | 02b9206 | 2013-07-21 18:40:59 -0400 | [diff] [blame] | 1481 | |
Behdad Esfahbod | 6df089a | 2013-07-31 19:27:14 -0400 | [diff] [blame] | 1482 | names = font.getGlyphNames() |
| 1483 | log.lapse ("loading glyph names") |
Behdad Esfahbod | e7f5a89 | 2013-07-31 19:58:59 -0400 | [diff] [blame] | 1484 | |
| 1485 | glyphs = [] |
Behdad Esfahbod | 8c8ff45 | 2013-07-31 19:47:37 -0400 | [diff] [blame] | 1486 | unicodes = [] |
Behdad Esfahbod | 9ec5215 | 2013-08-13 14:04:44 -0400 | [diff] [blame] | 1487 | text = "" |
Behdad Esfahbod | e7f5a89 | 2013-07-31 19:58:59 -0400 | [diff] [blame] | 1488 | for g in args: |
Behdad Esfahbod | 6df089a | 2013-07-31 19:27:14 -0400 | [diff] [blame] | 1489 | if g in names: |
Behdad Esfahbod | e7f5a89 | 2013-07-31 19:58:59 -0400 | [diff] [blame] | 1490 | glyphs.append (g) |
Behdad Esfahbod | 6df089a | 2013-07-31 19:27:14 -0400 | [diff] [blame] | 1491 | continue |
Behdad Esfahbod | 9ec5215 | 2013-08-13 14:04:44 -0400 | [diff] [blame] | 1492 | if g.startswith ('--text='): |
| 1493 | text += g[7:] |
| 1494 | continue |
Behdad Esfahbod | 9ae5d28 | 2013-08-08 21:18:17 -0400 | [diff] [blame] | 1495 | if g.startswith ('uni') or g.startswith ('U+'): |
| 1496 | if g.startswith ('uni') and len (g) > 3: |
| 1497 | g = g[3:] |
| 1498 | elif g.startswith ('U+') and len (g) > 2: |
| 1499 | g = g[2:] |
| 1500 | u = int (g, 16) |
Behdad Esfahbod | 8c8ff45 | 2013-07-31 19:47:37 -0400 | [diff] [blame] | 1501 | unicodes.append (u) |
Behdad Esfahbod | 6df089a | 2013-07-31 19:27:14 -0400 | [diff] [blame] | 1502 | continue |
| 1503 | if g.startswith ('gid') or g.startswith ('glyph'): |
| 1504 | if g.startswith ('gid') and len (g) > 3: |
| 1505 | g = g[3:] |
| 1506 | elif g.startswith ('glyph') and len (g) > 5: |
| 1507 | g = g[5:] |
| 1508 | try: |
Behdad Esfahbod | e7f5a89 | 2013-07-31 19:58:59 -0400 | [diff] [blame] | 1509 | glyphs.append (font.getGlyphName (int (g), requireReal=1)) |
Behdad Esfahbod | 6df089a | 2013-07-31 19:27:14 -0400 | [diff] [blame] | 1510 | except ValueError: |
Behdad Esfahbod | 9ec5215 | 2013-08-13 14:04:44 -0400 | [diff] [blame] | 1511 | raise Exception ("Invalid glyph identifier: %s" % g) |
Behdad Esfahbod | 6df089a | 2013-07-31 19:27:14 -0400 | [diff] [blame] | 1512 | continue |
Behdad Esfahbod | 9ec5215 | 2013-08-13 14:04:44 -0400 | [diff] [blame] | 1513 | raise Exception ("Invalid glyph identifier: %s" % g) |
Behdad Esfahbod | 6df089a | 2013-07-31 19:27:14 -0400 | [diff] [blame] | 1514 | log.lapse ("compile glyph list") |
Behdad Esfahbod | e7f5a89 | 2013-07-31 19:58:59 -0400 | [diff] [blame] | 1515 | log ("Unicodes:", unicodes) |
Behdad Esfahbod | 6df089a | 2013-07-31 19:27:14 -0400 | [diff] [blame] | 1516 | log ("Glyphs:", glyphs) |
| 1517 | |
Behdad Esfahbod | 9ec5215 | 2013-08-13 14:04:44 -0400 | [diff] [blame] | 1518 | subsetter.populate (glyphs=glyphs, unicodes=unicodes, text=text) |
Behdad Esfahbod | d1c66ec | 2013-08-13 12:30:14 -0400 | [diff] [blame] | 1519 | subsetter.subset (font) |
Behdad Esfahbod | d1d41bc | 2013-07-21 23:15:32 -0400 | [diff] [blame] | 1520 | |
Behdad Esfahbod | de71dca | 2013-07-24 12:40:54 -0400 | [diff] [blame] | 1521 | font.save (fontfile + '.subset') |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1522 | log.lapse ("compile and save font") |
Behdad Esfahbod | de71dca | 2013-07-24 12:40:54 -0400 | [diff] [blame] | 1523 | |
Behdad Esfahbod | d1c66ec | 2013-08-13 12:30:14 -0400 | [diff] [blame] | 1524 | log.last_time = log.start_time |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1525 | log.lapse ("make one with everything (TOTAL TIME)") |
Behdad Esfahbod | de71dca | 2013-07-24 12:40:54 -0400 | [diff] [blame] | 1526 | |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1527 | log.font (font) |
Behdad Esfahbod | 8c486d8 | 2013-07-24 13:34:47 -0400 | [diff] [blame] | 1528 | |
| 1529 | if __name__ == '__main__': |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1530 | main (sys.argv[1:]) |