Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 1 | # Copyright 2013 Google, Inc. All Rights Reserved. |
| 2 | # |
Roozbeh Pournader | 47bee9c | 2013-12-18 00:45:12 -0800 | [diff] [blame] | 3 | # Google Author(s): Behdad Esfahbod, Roozbeh Pournader |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 4 | |
| 5 | """Font merger. |
| 6 | """ |
| 7 | |
Behdad Esfahbod | f63e80e | 2013-12-18 17:14:26 -0500 | [diff] [blame] | 8 | from __future__ import print_function, division |
| 9 | from fontTools.misc.py23 import * |
| 10 | from fontTools import ttLib, cffLib |
Roozbeh Pournader | e219c6c | 2013-12-18 12:15:46 -0800 | [diff] [blame^] | 11 | from fontTools.ttLib.tables import otTables, _h_e_a_d |
Behdad Esfahbod | f63e80e | 2013-12-18 17:14:26 -0500 | [diff] [blame] | 12 | from functools import reduce |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 13 | import sys |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 14 | import time |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 15 | |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 16 | |
| 17 | def _add_method(*clazzes): |
Behdad Esfahbod | c855f3a | 2013-09-19 20:09:23 -0400 | [diff] [blame] | 18 | """Returns a decorator function that adds a new method to one or |
| 19 | more classes.""" |
| 20 | def wrapper(method): |
| 21 | for clazz in clazzes: |
| 22 | assert clazz.__name__ != 'DefaultTable', 'Oops, table class not found.' |
Behdad Esfahbod | f63e80e | 2013-12-18 17:14:26 -0500 | [diff] [blame] | 23 | assert not hasattr(clazz, method.__name__), \ |
Behdad Esfahbod | c855f3a | 2013-09-19 20:09:23 -0400 | [diff] [blame] | 24 | "Oops, class '%s' has method '%s'." % (clazz.__name__, |
Behdad Esfahbod | f63e80e | 2013-12-18 17:14:26 -0500 | [diff] [blame] | 25 | method.__name__) |
| 26 | setattr(clazz, method.__name__, method) |
Behdad Esfahbod | c855f3a | 2013-09-19 20:09:23 -0400 | [diff] [blame] | 27 | return None |
| 28 | return wrapper |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 29 | |
Roozbeh Pournader | 47bee9c | 2013-12-18 00:45:12 -0800 | [diff] [blame] | 30 | # General utility functions for merging values from different fonts |
| 31 | def assert_equal(lst): |
| 32 | first = lst[0] |
| 33 | assert all([item == first for item in lst]) |
Roozbeh Pournader | e219c6c | 2013-12-18 12:15:46 -0800 | [diff] [blame^] | 34 | return first |
Roozbeh Pournader | 47bee9c | 2013-12-18 00:45:12 -0800 | [diff] [blame] | 35 | |
| 36 | def first(lst): |
| 37 | return lst[0] |
| 38 | |
Roozbeh Pournader | e219c6c | 2013-12-18 12:15:46 -0800 | [diff] [blame^] | 39 | def recalculate(lst): |
| 40 | # Just return the first value, assume will be recalculated when saved |
| 41 | return lst[0] |
| 42 | |
| 43 | def current_time(lst): |
| 44 | return long(time.time() - _h_e_a_d.mac_epoch_diff) |
| 45 | |
| 46 | def bitwise_or(lst): |
| 47 | ret = 0 |
| 48 | for item in lst: |
| 49 | ret |= item |
| 50 | return ret |
| 51 | |
| 52 | def ignore(lst): |
| 53 | assert False, "This function should not be called." |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 54 | |
Behdad Esfahbod | be4ecc7 | 2013-09-19 20:37:01 -0400 | [diff] [blame] | 55 | @_add_method(ttLib.getTableClass('maxp')) |
Behdad Esfahbod | 0bf4f56 | 2013-09-19 20:21:04 -0400 | [diff] [blame] | 56 | def merge(self, m): |
Roozbeh Pournader | 47bee9c | 2013-12-18 00:45:12 -0800 | [diff] [blame] | 57 | logic = { |
| 58 | '*': max, |
| 59 | 'tableVersion': assert_equal, |
| 60 | 'numGlyphs': sum, |
| 61 | 'maxStorage': max, # FIXME: may need to be changed to sum |
| 62 | 'maxFunctionDefs': sum, |
| 63 | 'maxInstructionDefs': sum, |
| 64 | } |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 65 | # TODO When we correctly merge hinting data, update these values: |
| 66 | # maxFunctionDefs, maxInstructionDefs, maxSizeOfInstructions |
Roozbeh Pournader | 47bee9c | 2013-12-18 00:45:12 -0800 | [diff] [blame] | 67 | m._mergeKeys(self, logic) |
Behdad Esfahbod | 65f19d8 | 2013-09-18 21:02:41 -0400 | [diff] [blame] | 68 | return True |
| 69 | |
Behdad Esfahbod | be4ecc7 | 2013-09-19 20:37:01 -0400 | [diff] [blame] | 70 | @_add_method(ttLib.getTableClass('head')) |
Behdad Esfahbod | 0bf4f56 | 2013-09-19 20:21:04 -0400 | [diff] [blame] | 71 | def merge(self, m): |
Roozbeh Pournader | e219c6c | 2013-12-18 12:15:46 -0800 | [diff] [blame^] | 72 | logic = { |
| 73 | 'tableVersion': max, |
| 74 | 'fontRevision': max, |
| 75 | 'checkSumAdjustment': recalculate, |
| 76 | 'magicNumber': assert_equal, |
| 77 | 'flags': first, # FIXME: replace with bit-sensitive code |
| 78 | 'unitsPerEm': assert_equal, |
| 79 | 'created': current_time, |
| 80 | 'modified': current_time, |
| 81 | 'xMin': min, |
| 82 | 'yMin': min, |
| 83 | 'xMax': max, |
| 84 | 'yMax': max, |
| 85 | 'macStyle': first, |
| 86 | 'lowestRecPPEM': max, |
| 87 | 'fontDirectionHint': lambda lst: 2, |
| 88 | 'indexToLocFormat': recalculate, |
| 89 | 'glyphDataFormat': assert_equal, |
| 90 | } |
| 91 | m._mergeKeys(self, logic) |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 92 | return True |
| 93 | |
Behdad Esfahbod | be4ecc7 | 2013-09-19 20:37:01 -0400 | [diff] [blame] | 94 | @_add_method(ttLib.getTableClass('hhea')) |
Behdad Esfahbod | 0bf4f56 | 2013-09-19 20:21:04 -0400 | [diff] [blame] | 95 | def merge(self, m): |
Roozbeh Pournader | e219c6c | 2013-12-18 12:15:46 -0800 | [diff] [blame^] | 96 | logic = { |
| 97 | '*': assert_equal, |
| 98 | 'tableVersion': max, |
| 99 | 'ascent': max, |
| 100 | 'descent': min, |
| 101 | 'lineGap': max, |
| 102 | 'advanceWidthMax': max, |
| 103 | 'minLeftSideBearing': min, |
| 104 | 'minRightSideBearing': min, |
| 105 | 'xMaxExtent': max, |
| 106 | 'caretSlopeRise': first, # FIXME |
| 107 | 'caretSlopeRun': first, # FIXME |
| 108 | 'caretOffset': first, # FIXME |
| 109 | 'numberOfHMetrics': recalculate, |
| 110 | } |
| 111 | m._mergeKeys(self, logic) |
Behdad Esfahbod | 65f19d8 | 2013-09-18 21:02:41 -0400 | [diff] [blame] | 112 | return True |
| 113 | |
Behdad Esfahbod | be4ecc7 | 2013-09-19 20:37:01 -0400 | [diff] [blame] | 114 | @_add_method(ttLib.getTableClass('OS/2')) |
Behdad Esfahbod | 0bf4f56 | 2013-09-19 20:21:04 -0400 | [diff] [blame] | 115 | def merge(self, m): |
Roozbeh Pournader | e219c6c | 2013-12-18 12:15:46 -0800 | [diff] [blame^] | 116 | logic = { |
| 117 | '*': first, |
| 118 | 'version': max, |
| 119 | 'xAvgCharWidth': recalculate, |
| 120 | 'fsType': first, # FIXME |
| 121 | 'panose': first, # FIXME? |
| 122 | 'ulUnicodeRange1': bitwise_or, |
| 123 | 'ulUnicodeRange2': bitwise_or, |
| 124 | 'ulUnicodeRange3': bitwise_or, |
| 125 | 'ulUnicodeRange4': bitwise_or, |
| 126 | 'fsFirstCharIndex': min, |
| 127 | 'fsLastCharIndex': max, |
| 128 | 'sTypoAscender': max, |
| 129 | 'sTypoDescender': min, |
| 130 | 'sTypoLineGap': max, |
| 131 | 'usWinAscent': max, |
| 132 | 'usWinDescent': max, |
| 133 | 'ulCodePageRange1': bitwise_or, |
| 134 | 'ulCodePageRange2': bitwise_or, |
| 135 | 'usMaxContex': max, |
| 136 | } |
| 137 | m._mergeKeys(self, logic) |
Behdad Esfahbod | 71294de | 2013-09-19 19:43:17 -0400 | [diff] [blame] | 138 | return True |
| 139 | |
Behdad Esfahbod | be4ecc7 | 2013-09-19 20:37:01 -0400 | [diff] [blame] | 140 | @_add_method(ttLib.getTableClass('post')) |
Behdad Esfahbod | 0bf4f56 | 2013-09-19 20:21:04 -0400 | [diff] [blame] | 141 | def merge(self, m): |
Roozbeh Pournader | e219c6c | 2013-12-18 12:15:46 -0800 | [diff] [blame^] | 142 | logic = { |
| 143 | '*': first, |
| 144 | 'formatType': max, |
| 145 | 'isFixedPitch': min, |
| 146 | 'minMemType42': max, |
| 147 | 'maxMemType42': lambda lst: 0, |
| 148 | 'minMemType1': max, |
| 149 | 'maxMemType1': lambda lst: 0, |
| 150 | 'mapping': ignore, |
| 151 | 'extraNames': ignore |
| 152 | } |
| 153 | m._mergeKeys(self, logic) |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 154 | self.mapping = {} |
Behdad Esfahbod | 0bf4f56 | 2013-09-19 20:21:04 -0400 | [diff] [blame] | 155 | for table in m.tables: |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 156 | if hasattr(table, 'mapping'): |
| 157 | self.mapping.update(table.mapping) |
| 158 | self.extraNames = [] |
| 159 | return True |
| 160 | |
Behdad Esfahbod | be4ecc7 | 2013-09-19 20:37:01 -0400 | [diff] [blame] | 161 | @_add_method(ttLib.getTableClass('vmtx'), |
| 162 | ttLib.getTableClass('hmtx')) |
Behdad Esfahbod | 0bf4f56 | 2013-09-19 20:21:04 -0400 | [diff] [blame] | 163 | def merge(self, m): |
Behdad Esfahbod | 65f19d8 | 2013-09-18 21:02:41 -0400 | [diff] [blame] | 164 | self.metrics = {} |
Behdad Esfahbod | 0bf4f56 | 2013-09-19 20:21:04 -0400 | [diff] [blame] | 165 | for table in m.tables: |
Behdad Esfahbod | 65f19d8 | 2013-09-18 21:02:41 -0400 | [diff] [blame] | 166 | self.metrics.update(table.metrics) |
| 167 | return True |
| 168 | |
Behdad Esfahbod | be4ecc7 | 2013-09-19 20:37:01 -0400 | [diff] [blame] | 169 | @_add_method(ttLib.getTableClass('loca')) |
Behdad Esfahbod | 0bf4f56 | 2013-09-19 20:21:04 -0400 | [diff] [blame] | 170 | def merge(self, m): |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 171 | return True # Will be computed automatically |
| 172 | |
Behdad Esfahbod | be4ecc7 | 2013-09-19 20:37:01 -0400 | [diff] [blame] | 173 | @_add_method(ttLib.getTableClass('glyf')) |
Behdad Esfahbod | 0bf4f56 | 2013-09-19 20:21:04 -0400 | [diff] [blame] | 174 | def merge(self, m): |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 175 | self.glyphs = {} |
Behdad Esfahbod | 0bf4f56 | 2013-09-19 20:21:04 -0400 | [diff] [blame] | 176 | for table in m.tables: |
Behdad Esfahbod | 4365033 | 2013-09-20 16:33:33 -0400 | [diff] [blame] | 177 | for g in table.glyphs.values(): |
| 178 | # Drop hints for now, since we don't remap |
| 179 | # functions / CVT values. |
| 180 | g.removeHinting() |
| 181 | # Expand composite glyphs to load their |
| 182 | # composite glyph names. |
| 183 | if g.isComposite(): |
| 184 | g.expand(table) |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 185 | self.glyphs.update(table.glyphs) |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 186 | return True |
| 187 | |
Behdad Esfahbod | be4ecc7 | 2013-09-19 20:37:01 -0400 | [diff] [blame] | 188 | @_add_method(ttLib.getTableClass('prep'), |
| 189 | ttLib.getTableClass('fpgm'), |
| 190 | ttLib.getTableClass('cvt ')) |
Behdad Esfahbod | 0bf4f56 | 2013-09-19 20:21:04 -0400 | [diff] [blame] | 191 | def merge(self, m): |
Behdad Esfahbod | 60eb804 | 2013-09-20 16:34:58 -0400 | [diff] [blame] | 192 | return False # TODO We don't merge hinting data currently. |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 193 | |
Behdad Esfahbod | be4ecc7 | 2013-09-19 20:37:01 -0400 | [diff] [blame] | 194 | @_add_method(ttLib.getTableClass('cmap')) |
Behdad Esfahbod | 0bf4f56 | 2013-09-19 20:21:04 -0400 | [diff] [blame] | 195 | def merge(self, m): |
Behdad Esfahbod | 71294de | 2013-09-19 19:43:17 -0400 | [diff] [blame] | 196 | # TODO Handle format=14. |
Behdad Esfahbod | 0bf4f56 | 2013-09-19 20:21:04 -0400 | [diff] [blame] | 197 | cmapTables = [t for table in m.tables for t in table.tables |
Behdad Esfahbod | 71294de | 2013-09-19 19:43:17 -0400 | [diff] [blame] | 198 | if t.platformID == 3 and t.platEncID in [1, 10]] |
| 199 | # TODO Better handle format-4 and format-12 coexisting in same font. |
| 200 | # TODO Insert both a format-4 and format-12 if needed. |
Behdad Esfahbod | be4ecc7 | 2013-09-19 20:37:01 -0400 | [diff] [blame] | 201 | module = ttLib.getTableModule('cmap') |
Behdad Esfahbod | 71294de | 2013-09-19 19:43:17 -0400 | [diff] [blame] | 202 | assert all(t.format in [4, 12] for t in cmapTables) |
| 203 | format = max(t.format for t in cmapTables) |
| 204 | cmapTable = module.cmap_classes[format](format) |
| 205 | cmapTable.cmap = {} |
| 206 | cmapTable.platformID = 3 |
| 207 | cmapTable.platEncID = max(t.platEncID for t in cmapTables) |
| 208 | cmapTable.language = 0 |
| 209 | for table in cmapTables: |
| 210 | # TODO handle duplicates. |
| 211 | cmapTable.cmap.update(table.cmap) |
| 212 | self.tableVersion = 0 |
| 213 | self.tables = [cmapTable] |
| 214 | self.numSubTables = len(self.tables) |
| 215 | return True |
| 216 | |
Behdad Esfahbod | c14ab48 | 2013-09-19 21:22:54 -0400 | [diff] [blame] | 217 | @_add_method(ttLib.getTableClass('GDEF')) |
| 218 | def merge(self, m): |
| 219 | self.table = otTables.GDEF() |
Behdad Esfahbod | 60eb804 | 2013-09-20 16:34:58 -0400 | [diff] [blame] | 220 | self.table.Version = 1.0 # TODO version 1.2... |
Behdad Esfahbod | c14ab48 | 2013-09-19 21:22:54 -0400 | [diff] [blame] | 221 | |
| 222 | if any(t.table.LigCaretList for t in m.tables): |
| 223 | glyphs = [] |
| 224 | ligGlyphs = [] |
| 225 | for table in m.tables: |
| 226 | if table.table.LigCaretList: |
| 227 | glyphs.extend(table.table.LigCaretList.Coverage.glyphs) |
| 228 | ligGlyphs.extend(table.table.LigCaretList.LigGlyph) |
| 229 | coverage = otTables.Coverage() |
| 230 | coverage.glyphs = glyphs |
| 231 | ligCaretList = otTables.LigCaretList() |
| 232 | ligCaretList.Coverage = coverage |
| 233 | ligCaretList.LigGlyph = ligGlyphs |
| 234 | ligCaretList.GlyphCount = len(ligGlyphs) |
| 235 | self.table.LigCaretList = ligCaretList |
| 236 | else: |
| 237 | self.table.LigCaretList = None |
| 238 | |
| 239 | if any(t.table.MarkAttachClassDef for t in m.tables): |
| 240 | classDefs = {} |
| 241 | for table in m.tables: |
| 242 | if table.table.MarkAttachClassDef: |
| 243 | classDefs.update(table.table.MarkAttachClassDef.classDefs) |
| 244 | self.table.MarkAttachClassDef = otTables.MarkAttachClassDef() |
| 245 | self.table.MarkAttachClassDef.classDefs = classDefs |
| 246 | else: |
| 247 | self.table.MarkAttachClassDef = None |
| 248 | |
| 249 | if any(t.table.GlyphClassDef for t in m.tables): |
| 250 | classDefs = {} |
| 251 | for table in m.tables: |
| 252 | if table.table.GlyphClassDef: |
| 253 | classDefs.update(table.table.GlyphClassDef.classDefs) |
| 254 | self.table.GlyphClassDef = otTables.GlyphClassDef() |
| 255 | self.table.GlyphClassDef.classDefs = classDefs |
| 256 | else: |
| 257 | self.table.GlyphClassDef = None |
| 258 | |
| 259 | if any(t.table.AttachList for t in m.tables): |
| 260 | glyphs = [] |
| 261 | attachPoints = [] |
| 262 | for table in m.tables: |
| 263 | if table.table.AttachList: |
| 264 | glyphs.extend(table.table.AttachList.Coverage.glyphs) |
| 265 | attachPoints.extend(table.table.AttachList.AttachPoint) |
| 266 | coverage = otTables.Coverage() |
| 267 | coverage.glyphs = glyphs |
| 268 | attachList = otTables.AttachList() |
| 269 | attachList.Coverage = coverage |
| 270 | attachList.AttachPoint = attachPoints |
| 271 | attachList.GlyphCount = len(attachPoints) |
| 272 | self.table.AttachList = attachList |
| 273 | else: |
| 274 | self.table.AttachList = None |
| 275 | |
| 276 | return True |
| 277 | |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 278 | |
| 279 | class Options(object): |
| 280 | |
| 281 | class UnknownOptionError(Exception): |
| 282 | pass |
| 283 | |
| 284 | _drop_tables_default = ['fpgm', 'prep', 'cvt ', 'gasp'] |
| 285 | drop_tables = _drop_tables_default |
| 286 | |
| 287 | def __init__(self, **kwargs): |
| 288 | |
| 289 | self.set(**kwargs) |
| 290 | |
| 291 | def set(self, **kwargs): |
Behdad Esfahbod | f63e80e | 2013-12-18 17:14:26 -0500 | [diff] [blame] | 292 | for k,v in kwargs.items(): |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 293 | if not hasattr(self, k): |
| 294 | raise self.UnknownOptionError("Unknown option '%s'" % k) |
| 295 | setattr(self, k, v) |
| 296 | |
| 297 | def parse_opts(self, argv, ignore_unknown=False): |
| 298 | ret = [] |
| 299 | opts = {} |
| 300 | for a in argv: |
| 301 | orig_a = a |
| 302 | if not a.startswith('--'): |
| 303 | ret.append(a) |
| 304 | continue |
| 305 | a = a[2:] |
| 306 | i = a.find('=') |
| 307 | op = '=' |
| 308 | if i == -1: |
| 309 | if a.startswith("no-"): |
| 310 | k = a[3:] |
| 311 | v = False |
| 312 | else: |
| 313 | k = a |
| 314 | v = True |
| 315 | else: |
| 316 | k = a[:i] |
| 317 | if k[-1] in "-+": |
| 318 | op = k[-1]+'=' # Ops is '-=' or '+=' now. |
| 319 | k = k[:-1] |
| 320 | v = a[i+1:] |
| 321 | k = k.replace('-', '_') |
| 322 | if not hasattr(self, k): |
| 323 | if ignore_unknown == True or k in ignore_unknown: |
| 324 | ret.append(orig_a) |
| 325 | continue |
| 326 | else: |
| 327 | raise self.UnknownOptionError("Unknown option '%s'" % a) |
| 328 | |
| 329 | ov = getattr(self, k) |
| 330 | if isinstance(ov, bool): |
| 331 | v = bool(v) |
| 332 | elif isinstance(ov, int): |
| 333 | v = int(v) |
| 334 | elif isinstance(ov, list): |
| 335 | vv = v.split(',') |
| 336 | if vv == ['']: |
| 337 | vv = [] |
| 338 | vv = [int(x, 0) if len(x) and x[0] in "0123456789" else x for x in vv] |
| 339 | if op == '=': |
| 340 | v = vv |
| 341 | elif op == '+=': |
| 342 | v = ov |
| 343 | v.extend(vv) |
| 344 | elif op == '-=': |
| 345 | v = ov |
| 346 | for x in vv: |
| 347 | if x in v: |
| 348 | v.remove(x) |
| 349 | else: |
| 350 | assert 0 |
| 351 | |
| 352 | opts[k] = v |
| 353 | self.set(**opts) |
| 354 | |
| 355 | return ret |
| 356 | |
| 357 | |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 358 | class Merger: |
| 359 | |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 360 | def __init__(self, options=None, log=None): |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 361 | |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 362 | if not log: |
| 363 | log = Logger() |
| 364 | if not options: |
| 365 | options = Options() |
| 366 | |
| 367 | self.options = options |
| 368 | self.log = log |
| 369 | |
| 370 | def merge(self, fontfiles): |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 371 | |
| 372 | mega = ttLib.TTFont() |
| 373 | |
| 374 | # |
| 375 | # Settle on a mega glyph order. |
| 376 | # |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 377 | fonts = [ttLib.TTFont(fontfile) for fontfile in fontfiles] |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 378 | glyphOrders = [font.getGlyphOrder() for font in fonts] |
| 379 | megaGlyphOrder = self._mergeGlyphOrders(glyphOrders) |
| 380 | # Reload fonts and set new glyph names on them. |
| 381 | # TODO Is it necessary to reload font? I think it is. At least |
| 382 | # it's safer, in case tables were loaded to provide glyph names. |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 383 | fonts = [ttLib.TTFont(fontfile) for fontfile in fontfiles] |
Behdad Esfahbod | 3235a04 | 2013-09-19 20:57:33 -0400 | [diff] [blame] | 384 | for font,glyphOrder in zip(fonts, glyphOrders): |
| 385 | font.setGlyphOrder(glyphOrder) |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 386 | mega.setGlyphOrder(megaGlyphOrder) |
| 387 | |
Behdad Esfahbod | f63e80e | 2013-12-18 17:14:26 -0500 | [diff] [blame] | 388 | allTags = reduce(set.union, (list(font.keys()) for font in fonts), set()) |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 389 | allTags.remove('GlyphOrder') |
| 390 | for tag in allTags: |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 391 | |
| 392 | if tag in self.options.drop_tables: |
Behdad Esfahbod | b640f74 | 2013-09-19 20:12:56 -0400 | [diff] [blame] | 393 | self.log("Dropping '%s'." % tag) |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 394 | continue |
| 395 | |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 396 | clazz = ttLib.getTableClass(tag) |
| 397 | |
| 398 | if not hasattr(clazz, 'merge'): |
Behdad Esfahbod | b640f74 | 2013-09-19 20:12:56 -0400 | [diff] [blame] | 399 | self.log("Don't know how to merge '%s', dropped." % tag) |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 400 | continue |
| 401 | |
| 402 | # TODO For now assume all fonts have the same tables. |
Behdad Esfahbod | 0bf4f56 | 2013-09-19 20:21:04 -0400 | [diff] [blame] | 403 | self.tables = [font[tag] for font in fonts] |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 404 | table = clazz(tag) |
Behdad Esfahbod | 0bf4f56 | 2013-09-19 20:21:04 -0400 | [diff] [blame] | 405 | if table.merge (self): |
Behdad Esfahbod | 65f19d8 | 2013-09-18 21:02:41 -0400 | [diff] [blame] | 406 | mega[tag] = table |
Behdad Esfahbod | b640f74 | 2013-09-19 20:12:56 -0400 | [diff] [blame] | 407 | self.log("Merged '%s'." % tag) |
Behdad Esfahbod | 65f19d8 | 2013-09-18 21:02:41 -0400 | [diff] [blame] | 408 | else: |
Behdad Esfahbod | b640f74 | 2013-09-19 20:12:56 -0400 | [diff] [blame] | 409 | self.log("Dropped '%s'. No need to merge explicitly." % tag) |
| 410 | self.log.lapse("merge '%s'" % tag) |
Behdad Esfahbod | 0bf4f56 | 2013-09-19 20:21:04 -0400 | [diff] [blame] | 411 | del self.tables |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 412 | |
| 413 | return mega |
| 414 | |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 415 | def _mergeGlyphOrders(self, glyphOrders): |
Behdad Esfahbod | c2e27fd | 2013-09-20 16:25:48 -0400 | [diff] [blame] | 416 | """Modifies passed-in glyphOrders to reflect new glyph names. |
| 417 | Returns glyphOrder for the merged font.""" |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 418 | # Simply append font index to the glyph name for now. |
Behdad Esfahbod | c2e27fd | 2013-09-20 16:25:48 -0400 | [diff] [blame] | 419 | # TODO Even this simplistic numbering can result in conflicts. |
| 420 | # But then again, we have to improve this soon anyway. |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 421 | mega = [] |
| 422 | for n,glyphOrder in enumerate(glyphOrders): |
| 423 | for i,glyphName in enumerate(glyphOrder): |
Behdad Esfahbod | f63e80e | 2013-12-18 17:14:26 -0500 | [diff] [blame] | 424 | glyphName += "#" + repr(n) |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 425 | glyphOrder[i] = glyphName |
| 426 | mega.append(glyphName) |
| 427 | return mega |
| 428 | |
Roozbeh Pournader | 47bee9c | 2013-12-18 00:45:12 -0800 | [diff] [blame] | 429 | def _mergeKeys(self, return_table, logic): |
| 430 | logic['tableTag'] = assert_equal |
| 431 | allKeys = set.union(set(), *(vars(table).keys() for table in self.tables)) |
| 432 | for key in allKeys: |
Roozbeh Pournader | e219c6c | 2013-12-18 12:15:46 -0800 | [diff] [blame^] | 433 | try: |
| 434 | merge_logic = logic[key] |
| 435 | except KeyError: |
| 436 | merge_logic = logic['*'] |
| 437 | if merge_logic == ignore: |
| 438 | continue |
Roozbeh Pournader | 47bee9c | 2013-12-18 00:45:12 -0800 | [diff] [blame] | 439 | key_value = merge_logic([getattr(table, key) for table in self.tables]) |
| 440 | setattr(return_table, key, key_value) |
| 441 | |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 442 | |
| 443 | class Logger(object): |
| 444 | |
| 445 | def __init__(self, verbose=False, xml=False, timing=False): |
| 446 | self.verbose = verbose |
| 447 | self.xml = xml |
| 448 | self.timing = timing |
| 449 | self.last_time = self.start_time = time.time() |
| 450 | |
| 451 | def parse_opts(self, argv): |
| 452 | argv = argv[:] |
| 453 | for v in ['verbose', 'xml', 'timing']: |
| 454 | if "--"+v in argv: |
| 455 | setattr(self, v, True) |
| 456 | argv.remove("--"+v) |
| 457 | return argv |
| 458 | |
| 459 | def __call__(self, *things): |
| 460 | if not self.verbose: |
| 461 | return |
Behdad Esfahbod | f63e80e | 2013-12-18 17:14:26 -0500 | [diff] [blame] | 462 | print(' '.join(str(x) for x in things)) |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 463 | |
| 464 | def lapse(self, *things): |
| 465 | if not self.timing: |
| 466 | return |
| 467 | new_time = time.time() |
Behdad Esfahbod | f63e80e | 2013-12-18 17:14:26 -0500 | [diff] [blame] | 468 | print("Took %0.3fs to %s" %(new_time - self.last_time, |
| 469 | ' '.join(str(x) for x in things))) |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 470 | self.last_time = new_time |
| 471 | |
| 472 | def font(self, font, file=sys.stdout): |
| 473 | if not self.xml: |
| 474 | return |
| 475 | from fontTools.misc import xmlWriter |
| 476 | writer = xmlWriter.XMLWriter(file) |
| 477 | font.disassembleInstructions = False # Work around ttLib bug |
| 478 | for tag in font.keys(): |
| 479 | writer.begintag(tag) |
| 480 | writer.newline() |
| 481 | font[tag].toXML(writer, font) |
| 482 | writer.endtag(tag) |
| 483 | writer.newline() |
| 484 | |
| 485 | |
| 486 | __all__ = [ |
| 487 | 'Options', |
| 488 | 'Merger', |
| 489 | 'Logger', |
| 490 | 'main' |
| 491 | ] |
| 492 | |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 493 | def main(args): |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 494 | |
| 495 | log = Logger() |
| 496 | args = log.parse_opts(args) |
| 497 | |
| 498 | options = Options() |
| 499 | args = options.parse_opts(args) |
| 500 | |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 501 | if len(args) < 1: |
Behdad Esfahbod | f63e80e | 2013-12-18 17:14:26 -0500 | [diff] [blame] | 502 | print("usage: pyftmerge font...", file=sys.stderr) |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 503 | sys.exit(1) |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 504 | |
| 505 | merger = Merger(options=options, log=log) |
| 506 | font = merger.merge(args) |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 507 | outfile = 'merged.ttf' |
| 508 | font.save(outfile) |
Behdad Esfahbod | b640f74 | 2013-09-19 20:12:56 -0400 | [diff] [blame] | 509 | log.lapse("compile and save font") |
| 510 | |
| 511 | log.last_time = log.start_time |
| 512 | log.lapse("make one with everything(TOTAL TIME)") |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 513 | |
| 514 | if __name__ == "__main__": |
| 515 | main(sys.argv[1:]) |