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 | 1ae2959 | 2014-01-14 15:07:50 +0800 | [diff] [blame] | 8 | from __future__ import print_function, division, absolute_import |
Behdad Esfahbod | f63e80e | 2013-12-18 17:14:26 -0500 | [diff] [blame] | 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 | 9e6adb6 | 2013-12-19 04:20:26 -0500 | [diff] [blame] | 12 | from fontTools.ttLib.tables.DefaultTable import DefaultTable |
Behdad Esfahbod | f63e80e | 2013-12-18 17:14:26 -0500 | [diff] [blame] | 13 | from functools import reduce |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 14 | import sys |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 15 | import time |
Behdad Esfahbod | 49028b3 | 2013-12-18 17:34:17 -0500 | [diff] [blame] | 16 | import operator |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 17 | |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 18 | |
Behdad Esfahbod | 9e6adb6 | 2013-12-19 04:20:26 -0500 | [diff] [blame] | 19 | def _add_method(*clazzes, **kwargs): |
Behdad Esfahbod | c855f3a | 2013-09-19 20:09:23 -0400 | [diff] [blame] | 20 | """Returns a decorator function that adds a new method to one or |
| 21 | more classes.""" |
Behdad Esfahbod | c68c0ff | 2013-12-19 14:19:23 -0500 | [diff] [blame] | 22 | allowDefault = kwargs.get('allowDefaultTable', False) |
Behdad Esfahbod | c855f3a | 2013-09-19 20:09:23 -0400 | [diff] [blame] | 23 | def wrapper(method): |
| 24 | for clazz in clazzes: |
Behdad Esfahbod | 35e3c72 | 2013-12-20 21:34:09 -0500 | [diff] [blame] | 25 | assert allowDefault or clazz != DefaultTable, 'Oops, table class not found.' |
Behdad Esfahbod | 9e6adb6 | 2013-12-19 04:20:26 -0500 | [diff] [blame] | 26 | assert method.__name__ not in clazz.__dict__, \ |
Behdad Esfahbod | c855f3a | 2013-09-19 20:09:23 -0400 | [diff] [blame] | 27 | "Oops, class '%s' has method '%s'." % (clazz.__name__, |
Behdad Esfahbod | f63e80e | 2013-12-18 17:14:26 -0500 | [diff] [blame] | 28 | method.__name__) |
Behdad Esfahbod | 9e6adb6 | 2013-12-19 04:20:26 -0500 | [diff] [blame] | 29 | setattr(clazz, method.__name__, method) |
Behdad Esfahbod | c855f3a | 2013-09-19 20:09:23 -0400 | [diff] [blame] | 30 | return None |
| 31 | return wrapper |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 32 | |
Roozbeh Pournader | 47bee9c | 2013-12-18 00:45:12 -0800 | [diff] [blame] | 33 | # General utility functions for merging values from different fonts |
Behdad Esfahbod | 92fd566 | 2013-12-19 04:56:50 -0500 | [diff] [blame] | 34 | |
Behdad Esfahbod | 49028b3 | 2013-12-18 17:34:17 -0500 | [diff] [blame] | 35 | def equal(lst): |
Behdad Esfahbod | 477dad1 | 2014-03-28 13:52:48 -0700 | [diff] [blame] | 36 | lst = list(lst) |
Behdad Esfahbod | 49028b3 | 2013-12-18 17:34:17 -0500 | [diff] [blame] | 37 | t = iter(lst) |
| 38 | first = next(t) |
Behdad Esfahbod | 477dad1 | 2014-03-28 13:52:48 -0700 | [diff] [blame] | 39 | assert all(item == first for item in t), "Expected all items to be equal: %s" % lst |
Roozbeh Pournader | e219c6c | 2013-12-18 12:15:46 -0800 | [diff] [blame] | 40 | return first |
Roozbeh Pournader | 47bee9c | 2013-12-18 00:45:12 -0800 | [diff] [blame] | 41 | |
| 42 | def first(lst): |
Behdad Esfahbod | 49028b3 | 2013-12-18 17:34:17 -0500 | [diff] [blame] | 43 | return next(iter(lst)) |
Roozbeh Pournader | 47bee9c | 2013-12-18 00:45:12 -0800 | [diff] [blame] | 44 | |
Roozbeh Pournader | e219c6c | 2013-12-18 12:15:46 -0800 | [diff] [blame] | 45 | def recalculate(lst): |
Behdad Esfahbod | 92fd566 | 2013-12-19 04:56:50 -0500 | [diff] [blame] | 46 | return NotImplemented |
Roozbeh Pournader | e219c6c | 2013-12-18 12:15:46 -0800 | [diff] [blame] | 47 | |
| 48 | def current_time(lst): |
Behdad Esfahbod | 49028b3 | 2013-12-18 17:34:17 -0500 | [diff] [blame] | 49 | return int(time.time() - _h_e_a_d.mac_epoch_diff) |
Roozbeh Pournader | e219c6c | 2013-12-18 12:15:46 -0800 | [diff] [blame] | 50 | |
Roozbeh Pournader | 642eaf1 | 2013-12-21 01:04:18 -0800 | [diff] [blame] | 51 | def bitwise_and(lst): |
| 52 | return reduce(operator.and_, lst) |
| 53 | |
Roozbeh Pournader | e219c6c | 2013-12-18 12:15:46 -0800 | [diff] [blame] | 54 | def bitwise_or(lst): |
Behdad Esfahbod | 49028b3 | 2013-12-18 17:34:17 -0500 | [diff] [blame] | 55 | return reduce(operator.or_, lst) |
Roozbeh Pournader | e219c6c | 2013-12-18 12:15:46 -0800 | [diff] [blame] | 56 | |
Behdad Esfahbod | 92fd566 | 2013-12-19 04:56:50 -0500 | [diff] [blame] | 57 | def avg_int(lst): |
| 58 | lst = list(lst) |
| 59 | return sum(lst) // len(lst) |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 60 | |
Behdad Esfahbod | 0d5fcf4 | 2014-03-28 14:37:32 -0700 | [diff] [blame] | 61 | def onlyExisting(func): |
Behdad Esfahbod | 92fd566 | 2013-12-19 04:56:50 -0500 | [diff] [blame] | 62 | """Returns a filter func that when called with a list, |
| 63 | only calls func on the non-NotImplemented items of the list, |
| 64 | and only so if there's at least one item remaining. |
| 65 | Otherwise returns NotImplemented.""" |
| 66 | |
| 67 | def wrapper(lst): |
| 68 | items = [item for item in lst if item is not NotImplemented] |
| 69 | return func(items) if items else NotImplemented |
| 70 | |
| 71 | return wrapper |
| 72 | |
Behdad Esfahbod | 9e6adb6 | 2013-12-19 04:20:26 -0500 | [diff] [blame] | 73 | def sumLists(lst): |
| 74 | l = [] |
| 75 | for item in lst: |
| 76 | l.extend(item) |
| 77 | return l |
| 78 | |
| 79 | def sumDicts(lst): |
| 80 | d = {} |
| 81 | for item in lst: |
| 82 | d.update(item) |
| 83 | return d |
| 84 | |
Behdad Esfahbod | 12dd547 | 2013-12-19 05:58:06 -0500 | [diff] [blame] | 85 | def mergeObjects(lst): |
Behdad Esfahbod | 0884507 | 2014-03-28 15:02:40 -0700 | [diff] [blame^] | 86 | lst = [item for item in lst if item is not NotImplemented] |
Behdad Esfahbod | 12dd547 | 2013-12-19 05:58:06 -0500 | [diff] [blame] | 87 | if not lst: |
Behdad Esfahbod | 0884507 | 2014-03-28 15:02:40 -0700 | [diff] [blame^] | 88 | return NotImplemented |
| 89 | lst = [item for item in lst if item is not None] |
| 90 | if not lst: |
| 91 | return None |
Behdad Esfahbod | 12dd547 | 2013-12-19 05:58:06 -0500 | [diff] [blame] | 92 | |
| 93 | clazz = lst[0].__class__ |
| 94 | assert all(type(item) == clazz for item in lst), lst |
Behdad Esfahbod | 0884507 | 2014-03-28 15:02:40 -0700 | [diff] [blame^] | 95 | |
Behdad Esfahbod | 12dd547 | 2013-12-19 05:58:06 -0500 | [diff] [blame] | 96 | logic = clazz.mergeMap |
| 97 | returnTable = clazz() |
Behdad Esfahbod | 82c5463 | 2014-03-28 14:41:53 -0700 | [diff] [blame] | 98 | returnDict = {} |
Behdad Esfahbod | 12dd547 | 2013-12-19 05:58:06 -0500 | [diff] [blame] | 99 | |
| 100 | allKeys = set.union(set(), *(vars(table).keys() for table in lst)) |
| 101 | for key in allKeys: |
| 102 | try: |
| 103 | mergeLogic = logic[key] |
| 104 | except KeyError: |
| 105 | try: |
| 106 | mergeLogic = logic['*'] |
| 107 | except KeyError: |
| 108 | raise Exception("Don't know how to merge key %s of class %s" % |
| 109 | (key, clazz.__name__)) |
| 110 | if mergeLogic is NotImplemented: |
| 111 | continue |
| 112 | value = mergeLogic(getattr(table, key, NotImplemented) for table in lst) |
| 113 | if value is not NotImplemented: |
Behdad Esfahbod | 82c5463 | 2014-03-28 14:41:53 -0700 | [diff] [blame] | 114 | returnDict[key] = value |
| 115 | |
| 116 | returnTable.__dict__ = returnDict |
Behdad Esfahbod | 12dd547 | 2013-12-19 05:58:06 -0500 | [diff] [blame] | 117 | |
| 118 | return returnTable |
| 119 | |
Behdad Esfahbod | 201a681 | 2014-03-28 14:58:12 -0700 | [diff] [blame] | 120 | def mergeBits(bitmap): |
| 121 | |
| 122 | def wrapper(lst): |
| 123 | lst = list(lst) |
| 124 | returnValue = 0 |
| 125 | for bitNumber in range(bitmap['size']): |
Roozbeh Pournader | 642eaf1 | 2013-12-21 01:04:18 -0800 | [diff] [blame] | 126 | try: |
Behdad Esfahbod | 201a681 | 2014-03-28 14:58:12 -0700 | [diff] [blame] | 127 | mergeLogic = bitmap[bitNumber] |
Roozbeh Pournader | 642eaf1 | 2013-12-21 01:04:18 -0800 | [diff] [blame] | 128 | except KeyError: |
Behdad Esfahbod | 201a681 | 2014-03-28 14:58:12 -0700 | [diff] [blame] | 129 | try: |
| 130 | mergeLogic = bitmap['*'] |
| 131 | except KeyError: |
| 132 | raise Exception("Don't know how to merge bit %s" % bitNumber) |
| 133 | shiftedBit = 1 << bitNumber |
| 134 | mergedValue = mergeLogic(bool(item & shiftedBit) for item in lst) |
| 135 | returnValue |= mergedValue << bitNumber |
| 136 | return returnValue |
| 137 | |
| 138 | return wrapper |
Roozbeh Pournader | 642eaf1 | 2013-12-21 01:04:18 -0800 | [diff] [blame] | 139 | |
Behdad Esfahbod | 9e6adb6 | 2013-12-19 04:20:26 -0500 | [diff] [blame] | 140 | |
| 141 | @_add_method(DefaultTable, allowDefaultTable=True) |
Behdad Esfahbod | 3b36f55 | 2013-12-19 04:45:17 -0500 | [diff] [blame] | 142 | def merge(self, m, tables): |
Behdad Esfahbod | 9e6adb6 | 2013-12-19 04:20:26 -0500 | [diff] [blame] | 143 | if not hasattr(self, 'mergeMap'): |
| 144 | m.log("Don't know how to merge '%s'." % self.tableTag) |
Behdad Esfahbod | 92fd566 | 2013-12-19 04:56:50 -0500 | [diff] [blame] | 145 | return NotImplemented |
Behdad Esfahbod | 9e6adb6 | 2013-12-19 04:20:26 -0500 | [diff] [blame] | 146 | |
Behdad Esfahbod | 27c71f9 | 2014-01-27 21:01:45 -0500 | [diff] [blame] | 147 | logic = self.mergeMap |
| 148 | |
| 149 | if isinstance(logic, dict): |
| 150 | return m.mergeObjects(self, self.mergeMap, tables) |
| 151 | else: |
| 152 | return logic(tables) |
| 153 | |
Behdad Esfahbod | 9e6adb6 | 2013-12-19 04:20:26 -0500 | [diff] [blame] | 154 | |
| 155 | ttLib.getTableClass('maxp').mergeMap = { |
| 156 | '*': max, |
| 157 | 'tableTag': equal, |
| 158 | 'tableVersion': equal, |
| 159 | 'numGlyphs': sum, |
Behdad Esfahbod | 27c71f9 | 2014-01-27 21:01:45 -0500 | [diff] [blame] | 160 | 'maxStorage': first, |
| 161 | 'maxFunctionDefs': first, |
| 162 | 'maxInstructionDefs': first, |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 163 | # TODO When we correctly merge hinting data, update these values: |
| 164 | # maxFunctionDefs, maxInstructionDefs, maxSizeOfInstructions |
Behdad Esfahbod | 9e6adb6 | 2013-12-19 04:20:26 -0500 | [diff] [blame] | 165 | } |
Behdad Esfahbod | 65f19d8 | 2013-09-18 21:02:41 -0400 | [diff] [blame] | 166 | |
Behdad Esfahbod | b8039e2 | 2014-03-28 13:54:37 -0700 | [diff] [blame] | 167 | headFlagsMergeBitMap = { |
Roozbeh Pournader | 642eaf1 | 2013-12-21 01:04:18 -0800 | [diff] [blame] | 168 | 'size': 16, |
| 169 | '*': bitwise_or, |
| 170 | 1: bitwise_and, # Baseline at y = 0 |
| 171 | 2: bitwise_and, # lsb at x = 0 |
| 172 | 3: bitwise_and, # Force ppem to integer values. FIXME? |
| 173 | 5: bitwise_and, # Font is vertical |
| 174 | 6: lambda bit: 0, # Always set to zero |
| 175 | 11: bitwise_and, # Font data is 'lossless' |
| 176 | 13: bitwise_and, # Optimized for ClearType |
| 177 | 14: bitwise_and, # Last resort font. FIXME? equal or first may be better |
| 178 | 15: lambda bit: 0, # Always set to zero |
| 179 | } |
| 180 | |
Behdad Esfahbod | 9e6adb6 | 2013-12-19 04:20:26 -0500 | [diff] [blame] | 181 | ttLib.getTableClass('head').mergeMap = { |
| 182 | 'tableTag': equal, |
| 183 | 'tableVersion': max, |
| 184 | 'fontRevision': max, |
Behdad Esfahbod | 92fd566 | 2013-12-19 04:56:50 -0500 | [diff] [blame] | 185 | 'checkSumAdjustment': lambda lst: 0, # We need *something* here |
Behdad Esfahbod | 9e6adb6 | 2013-12-19 04:20:26 -0500 | [diff] [blame] | 186 | 'magicNumber': equal, |
Behdad Esfahbod | 201a681 | 2014-03-28 14:58:12 -0700 | [diff] [blame] | 187 | 'flags': mergeBits(headFlagsMergeBitMap), |
Behdad Esfahbod | 9e6adb6 | 2013-12-19 04:20:26 -0500 | [diff] [blame] | 188 | 'unitsPerEm': equal, |
| 189 | 'created': current_time, |
| 190 | 'modified': current_time, |
| 191 | 'xMin': min, |
| 192 | 'yMin': min, |
| 193 | 'xMax': max, |
| 194 | 'yMax': max, |
| 195 | 'macStyle': first, |
| 196 | 'lowestRecPPEM': max, |
| 197 | 'fontDirectionHint': lambda lst: 2, |
| 198 | 'indexToLocFormat': recalculate, |
| 199 | 'glyphDataFormat': equal, |
| 200 | } |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 201 | |
Behdad Esfahbod | 9e6adb6 | 2013-12-19 04:20:26 -0500 | [diff] [blame] | 202 | ttLib.getTableClass('hhea').mergeMap = { |
| 203 | '*': equal, |
| 204 | 'tableTag': equal, |
| 205 | 'tableVersion': max, |
| 206 | 'ascent': max, |
| 207 | 'descent': min, |
| 208 | 'lineGap': max, |
| 209 | 'advanceWidthMax': max, |
| 210 | 'minLeftSideBearing': min, |
| 211 | 'minRightSideBearing': min, |
| 212 | 'xMaxExtent': max, |
Roozbeh Pournader | 642eaf1 | 2013-12-21 01:04:18 -0800 | [diff] [blame] | 213 | 'caretSlopeRise': first, |
| 214 | 'caretSlopeRun': first, |
| 215 | 'caretOffset': first, |
Behdad Esfahbod | 9e6adb6 | 2013-12-19 04:20:26 -0500 | [diff] [blame] | 216 | 'numberOfHMetrics': recalculate, |
| 217 | } |
Behdad Esfahbod | 65f19d8 | 2013-09-18 21:02:41 -0400 | [diff] [blame] | 218 | |
Behdad Esfahbod | b8039e2 | 2014-03-28 13:54:37 -0700 | [diff] [blame] | 219 | os2FsTypeMergeBitMap = { |
Roozbeh Pournader | 642eaf1 | 2013-12-21 01:04:18 -0800 | [diff] [blame] | 220 | 'size': 16, |
| 221 | '*': lambda bit: 0, |
| 222 | 1: bitwise_or, # no embedding permitted |
| 223 | 2: bitwise_and, # allow previewing and printing documents |
| 224 | 3: bitwise_and, # allow editing documents |
| 225 | 8: bitwise_or, # no subsetting permitted |
| 226 | 9: bitwise_or, # no embedding of outlines permitted |
| 227 | } |
| 228 | |
| 229 | def mergeOs2FsType(lst): |
| 230 | lst = list(lst) |
| 231 | if all(item == 0 for item in lst): |
| 232 | return 0 |
| 233 | |
| 234 | # Compute least restrictive logic for each fsType value |
| 235 | for i in range(len(lst)): |
| 236 | # unset bit 1 (no embedding permitted) if either bit 2 or 3 is set |
| 237 | if lst[i] & 0x000C: |
| 238 | lst[i] &= ~0x0002 |
| 239 | # set bit 2 (allow previewing) if bit 3 is set (allow editing) |
| 240 | elif lst[i] & 0x0008: |
| 241 | lst[i] |= 0x0004 |
| 242 | # set bits 2 and 3 if everything is allowed |
| 243 | elif lst[i] == 0: |
| 244 | lst[i] = 0x000C |
| 245 | |
Behdad Esfahbod | 201a681 | 2014-03-28 14:58:12 -0700 | [diff] [blame] | 246 | fsType = mergeBits(os2FsTypeMergeBitMap)(lst) |
Roozbeh Pournader | 642eaf1 | 2013-12-21 01:04:18 -0800 | [diff] [blame] | 247 | # unset bits 2 and 3 if bit 1 is set (some font is "no embedding") |
| 248 | if fsType & 0x0002: |
| 249 | fsType &= ~0x000C |
| 250 | return fsType |
| 251 | |
| 252 | |
Behdad Esfahbod | 9e6adb6 | 2013-12-19 04:20:26 -0500 | [diff] [blame] | 253 | ttLib.getTableClass('OS/2').mergeMap = { |
| 254 | '*': first, |
| 255 | 'tableTag': equal, |
| 256 | 'version': max, |
Behdad Esfahbod | 92fd566 | 2013-12-19 04:56:50 -0500 | [diff] [blame] | 257 | 'xAvgCharWidth': avg_int, # Apparently fontTools doesn't recalc this |
Roozbeh Pournader | 642eaf1 | 2013-12-21 01:04:18 -0800 | [diff] [blame] | 258 | 'fsType': mergeOs2FsType, # Will be overwritten |
| 259 | 'panose': first, # FIXME: should really be the first Latin font |
Behdad Esfahbod | 9e6adb6 | 2013-12-19 04:20:26 -0500 | [diff] [blame] | 260 | 'ulUnicodeRange1': bitwise_or, |
| 261 | 'ulUnicodeRange2': bitwise_or, |
| 262 | 'ulUnicodeRange3': bitwise_or, |
| 263 | 'ulUnicodeRange4': bitwise_or, |
| 264 | 'fsFirstCharIndex': min, |
| 265 | 'fsLastCharIndex': max, |
| 266 | 'sTypoAscender': max, |
| 267 | 'sTypoDescender': min, |
| 268 | 'sTypoLineGap': max, |
| 269 | 'usWinAscent': max, |
| 270 | 'usWinDescent': max, |
Behdad Esfahbod | 0e235be | 2014-03-28 14:56:27 -0700 | [diff] [blame] | 271 | # Version 2,3,4 |
Behdad Esfahbod | 7765421 | 2014-03-28 14:48:09 -0700 | [diff] [blame] | 272 | 'ulCodePageRange1': onlyExisting(bitwise_or), |
| 273 | 'ulCodePageRange2': onlyExisting(bitwise_or), |
| 274 | 'usMaxContex': onlyExisting(max), |
Behdad Esfahbod | db2410a | 2013-12-19 03:30:29 -0500 | [diff] [blame] | 275 | # TODO version 5 |
Behdad Esfahbod | 9e6adb6 | 2013-12-19 04:20:26 -0500 | [diff] [blame] | 276 | } |
Behdad Esfahbod | 71294de | 2013-09-19 19:43:17 -0400 | [diff] [blame] | 277 | |
Roozbeh Pournader | 642eaf1 | 2013-12-21 01:04:18 -0800 | [diff] [blame] | 278 | @_add_method(ttLib.getTableClass('OS/2')) |
| 279 | def merge(self, m, tables): |
| 280 | DefaultTable.merge(self, m, tables) |
| 281 | if self.version < 2: |
| 282 | # bits 8 and 9 are reserved and should be set to zero |
| 283 | self.fsType &= ~0x0300 |
| 284 | if self.version >= 3: |
| 285 | # Only one of bits 1, 2, and 3 may be set. We already take |
| 286 | # care of bit 1 implications in mergeOs2FsType. So unset |
| 287 | # bit 2 if bit 3 is already set. |
| 288 | if self.fsType & 0x0008: |
| 289 | self.fsType &= ~0x0004 |
| 290 | return self |
| 291 | |
Behdad Esfahbod | 9e6adb6 | 2013-12-19 04:20:26 -0500 | [diff] [blame] | 292 | ttLib.getTableClass('post').mergeMap = { |
| 293 | '*': first, |
| 294 | 'tableTag': equal, |
| 295 | 'formatType': max, |
| 296 | 'isFixedPitch': min, |
| 297 | 'minMemType42': max, |
| 298 | 'maxMemType42': lambda lst: 0, |
| 299 | 'minMemType1': max, |
| 300 | 'maxMemType1': lambda lst: 0, |
Behdad Esfahbod | 0d5fcf4 | 2014-03-28 14:37:32 -0700 | [diff] [blame] | 301 | 'mapping': onlyExisting(sumDicts), |
Behdad Esfahbod | c68c0ff | 2013-12-19 14:19:23 -0500 | [diff] [blame] | 302 | 'extraNames': lambda lst: [], |
Behdad Esfahbod | 9e6adb6 | 2013-12-19 04:20:26 -0500 | [diff] [blame] | 303 | } |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 304 | |
Behdad Esfahbod | 9e6adb6 | 2013-12-19 04:20:26 -0500 | [diff] [blame] | 305 | ttLib.getTableClass('vmtx').mergeMap = ttLib.getTableClass('hmtx').mergeMap = { |
| 306 | 'tableTag': equal, |
| 307 | 'metrics': sumDicts, |
| 308 | } |
Behdad Esfahbod | 65f19d8 | 2013-09-18 21:02:41 -0400 | [diff] [blame] | 309 | |
Roozbeh Pournader | 7a27214 | 2013-12-19 15:46:05 -0800 | [diff] [blame] | 310 | ttLib.getTableClass('gasp').mergeMap = { |
| 311 | 'tableTag': equal, |
| 312 | 'version': max, |
| 313 | 'gaspRange': first, # FIXME? Appears irreconcilable |
| 314 | } |
| 315 | |
| 316 | ttLib.getTableClass('name').mergeMap = { |
| 317 | 'tableTag': equal, |
| 318 | 'names': first, # FIXME? Does mixing name records make sense? |
| 319 | } |
| 320 | |
Behdad Esfahbod | 9e6adb6 | 2013-12-19 04:20:26 -0500 | [diff] [blame] | 321 | ttLib.getTableClass('loca').mergeMap = { |
Behdad Esfahbod | 92fd566 | 2013-12-19 04:56:50 -0500 | [diff] [blame] | 322 | '*': recalculate, |
Behdad Esfahbod | 9e6adb6 | 2013-12-19 04:20:26 -0500 | [diff] [blame] | 323 | 'tableTag': equal, |
| 324 | } |
| 325 | |
| 326 | ttLib.getTableClass('glyf').mergeMap = { |
| 327 | 'tableTag': equal, |
| 328 | 'glyphs': sumDicts, |
| 329 | 'glyphOrder': sumLists, |
| 330 | } |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 331 | |
Behdad Esfahbod | be4ecc7 | 2013-09-19 20:37:01 -0400 | [diff] [blame] | 332 | @_add_method(ttLib.getTableClass('glyf')) |
Behdad Esfahbod | 3b36f55 | 2013-12-19 04:45:17 -0500 | [diff] [blame] | 333 | def merge(self, m, tables): |
Behdad Esfahbod | 27c71f9 | 2014-01-27 21:01:45 -0500 | [diff] [blame] | 334 | for i,table in enumerate(tables): |
Behdad Esfahbod | 4365033 | 2013-09-20 16:33:33 -0400 | [diff] [blame] | 335 | for g in table.glyphs.values(): |
Behdad Esfahbod | 27c71f9 | 2014-01-27 21:01:45 -0500 | [diff] [blame] | 336 | if i: |
| 337 | # Drop hints for all but first font, since |
| 338 | # we don't map functions / CVT values. |
| 339 | g.removeHinting() |
Behdad Esfahbod | 4365033 | 2013-09-20 16:33:33 -0400 | [diff] [blame] | 340 | # Expand composite glyphs to load their |
| 341 | # composite glyph names. |
| 342 | if g.isComposite(): |
| 343 | g.expand(table) |
Behdad Esfahbod | 92fd566 | 2013-12-19 04:56:50 -0500 | [diff] [blame] | 344 | return DefaultTable.merge(self, m, tables) |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 345 | |
Behdad Esfahbod | 27c71f9 | 2014-01-27 21:01:45 -0500 | [diff] [blame] | 346 | ttLib.getTableClass('prep').mergeMap = lambda self, lst: first(lst) |
| 347 | ttLib.getTableClass('fpgm').mergeMap = lambda self, lst: first(lst) |
| 348 | ttLib.getTableClass('cvt ').mergeMap = lambda self, lst: first(lst) |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 349 | |
Behdad Esfahbod | be4ecc7 | 2013-09-19 20:37:01 -0400 | [diff] [blame] | 350 | @_add_method(ttLib.getTableClass('cmap')) |
Behdad Esfahbod | 3b36f55 | 2013-12-19 04:45:17 -0500 | [diff] [blame] | 351 | def merge(self, m, tables): |
Behdad Esfahbod | 71294de | 2013-09-19 19:43:17 -0400 | [diff] [blame] | 352 | # TODO Handle format=14. |
Behdad Esfahbod | 3b36f55 | 2013-12-19 04:45:17 -0500 | [diff] [blame] | 353 | cmapTables = [t for table in tables for t in table.tables |
Behdad Esfahbod | f480c7c | 2014-03-12 12:18:47 -0700 | [diff] [blame] | 354 | if t.isUnicode()] |
Behdad Esfahbod | 71294de | 2013-09-19 19:43:17 -0400 | [diff] [blame] | 355 | # TODO Better handle format-4 and format-12 coexisting in same font. |
| 356 | # TODO Insert both a format-4 and format-12 if needed. |
Behdad Esfahbod | be4ecc7 | 2013-09-19 20:37:01 -0400 | [diff] [blame] | 357 | module = ttLib.getTableModule('cmap') |
Behdad Esfahbod | 71294de | 2013-09-19 19:43:17 -0400 | [diff] [blame] | 358 | assert all(t.format in [4, 12] for t in cmapTables) |
| 359 | format = max(t.format for t in cmapTables) |
| 360 | cmapTable = module.cmap_classes[format](format) |
| 361 | cmapTable.cmap = {} |
| 362 | cmapTable.platformID = 3 |
| 363 | cmapTable.platEncID = max(t.platEncID for t in cmapTables) |
| 364 | cmapTable.language = 0 |
| 365 | for table in cmapTables: |
| 366 | # TODO handle duplicates. |
| 367 | cmapTable.cmap.update(table.cmap) |
| 368 | self.tableVersion = 0 |
| 369 | self.tables = [cmapTable] |
| 370 | self.numSubTables = len(self.tables) |
Behdad Esfahbod | 92fd566 | 2013-12-19 04:56:50 -0500 | [diff] [blame] | 371 | return self |
Behdad Esfahbod | 71294de | 2013-09-19 19:43:17 -0400 | [diff] [blame] | 372 | |
Behdad Esfahbod | c14ab48 | 2013-09-19 21:22:54 -0400 | [diff] [blame] | 373 | |
Behdad Esfahbod | 2642934 | 2013-12-19 11:53:47 -0500 | [diff] [blame] | 374 | otTables.ScriptList.mergeMap = { |
| 375 | 'ScriptCount': sum, |
Behdad Esfahbod | 972af5a | 2013-12-31 18:16:36 +0800 | [diff] [blame] | 376 | 'ScriptRecord': lambda lst: sorted(sumLists(lst), key=lambda s: s.ScriptTag), |
Behdad Esfahbod | 2642934 | 2013-12-19 11:53:47 -0500 | [diff] [blame] | 377 | } |
| 378 | |
| 379 | otTables.FeatureList.mergeMap = { |
| 380 | 'FeatureCount': sum, |
| 381 | 'FeatureRecord': sumLists, |
| 382 | } |
| 383 | |
| 384 | otTables.LookupList.mergeMap = { |
| 385 | 'LookupCount': sum, |
| 386 | 'Lookup': sumLists, |
| 387 | } |
| 388 | |
Behdad Esfahbod | 12dd547 | 2013-12-19 05:58:06 -0500 | [diff] [blame] | 389 | otTables.Coverage.mergeMap = { |
| 390 | 'glyphs': sumLists, |
| 391 | } |
Behdad Esfahbod | c14ab48 | 2013-09-19 21:22:54 -0400 | [diff] [blame] | 392 | |
Behdad Esfahbod | 12dd547 | 2013-12-19 05:58:06 -0500 | [diff] [blame] | 393 | otTables.ClassDef.mergeMap = { |
| 394 | 'classDefs': sumDicts, |
| 395 | } |
Behdad Esfahbod | c14ab48 | 2013-09-19 21:22:54 -0400 | [diff] [blame] | 396 | |
Behdad Esfahbod | 12dd547 | 2013-12-19 05:58:06 -0500 | [diff] [blame] | 397 | otTables.LigCaretList.mergeMap = { |
| 398 | 'Coverage': mergeObjects, |
| 399 | 'LigGlyphCount': sum, |
| 400 | 'LigGlyph': sumLists, |
| 401 | } |
Behdad Esfahbod | c14ab48 | 2013-09-19 21:22:54 -0400 | [diff] [blame] | 402 | |
Behdad Esfahbod | 12dd547 | 2013-12-19 05:58:06 -0500 | [diff] [blame] | 403 | otTables.AttachList.mergeMap = { |
| 404 | 'Coverage': mergeObjects, |
| 405 | 'GlyphCount': sum, |
| 406 | 'AttachPoint': sumLists, |
| 407 | } |
Behdad Esfahbod | c14ab48 | 2013-09-19 21:22:54 -0400 | [diff] [blame] | 408 | |
Behdad Esfahbod | 12dd547 | 2013-12-19 05:58:06 -0500 | [diff] [blame] | 409 | # XXX Renumber MarkFilterSets of lookups |
| 410 | otTables.MarkGlyphSetsDef.mergeMap = { |
| 411 | 'MarkSetTableFormat': equal, |
| 412 | 'MarkSetCount': sum, |
| 413 | 'Coverage': sumLists, |
| 414 | } |
Behdad Esfahbod | c14ab48 | 2013-09-19 21:22:54 -0400 | [diff] [blame] | 415 | |
Behdad Esfahbod | 12dd547 | 2013-12-19 05:58:06 -0500 | [diff] [blame] | 416 | otTables.GDEF.mergeMap = { |
| 417 | '*': mergeObjects, |
| 418 | 'Version': max, |
| 419 | } |
| 420 | |
Behdad Esfahbod | 2642934 | 2013-12-19 11:53:47 -0500 | [diff] [blame] | 421 | otTables.GSUB.mergeMap = otTables.GPOS.mergeMap = { |
| 422 | '*': mergeObjects, |
Behdad Esfahbod | 12dd547 | 2013-12-19 05:58:06 -0500 | [diff] [blame] | 423 | 'Version': max, |
Behdad Esfahbod | 2642934 | 2013-12-19 11:53:47 -0500 | [diff] [blame] | 424 | } |
| 425 | |
| 426 | ttLib.getTableClass('GDEF').mergeMap = \ |
| 427 | ttLib.getTableClass('GSUB').mergeMap = \ |
| 428 | ttLib.getTableClass('GPOS').mergeMap = \ |
| 429 | ttLib.getTableClass('BASE').mergeMap = \ |
| 430 | ttLib.getTableClass('JSTF').mergeMap = \ |
| 431 | ttLib.getTableClass('MATH').mergeMap = \ |
| 432 | { |
Behdad Esfahbod | 0d5fcf4 | 2014-03-28 14:37:32 -0700 | [diff] [blame] | 433 | 'tableTag': onlyExisting(equal), # XXX clean me up |
Behdad Esfahbod | 12dd547 | 2013-12-19 05:58:06 -0500 | [diff] [blame] | 434 | 'table': mergeObjects, |
| 435 | } |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 436 | |
Behdad Esfahbod | 2642934 | 2013-12-19 11:53:47 -0500 | [diff] [blame] | 437 | |
Behdad Esfahbod | 5080331 | 2014-02-10 18:14:37 -0500 | [diff] [blame] | 438 | @_add_method(otTables.SingleSubst, |
| 439 | otTables.MultipleSubst, |
| 440 | otTables.AlternateSubst, |
| 441 | otTables.LigatureSubst, |
| 442 | otTables.ReverseChainSingleSubst, |
| 443 | otTables.SinglePos, |
| 444 | otTables.PairPos, |
| 445 | otTables.CursivePos, |
| 446 | otTables.MarkBasePos, |
| 447 | otTables.MarkLigPos, |
| 448 | otTables.MarkMarkPos) |
| 449 | def mapLookups(self, lookupMap): |
| 450 | pass |
| 451 | |
| 452 | # Copied and trimmed down from subset.py |
| 453 | @_add_method(otTables.ContextSubst, |
| 454 | otTables.ChainContextSubst, |
| 455 | otTables.ContextPos, |
| 456 | otTables.ChainContextPos) |
| 457 | def __classify_context(self): |
| 458 | |
| 459 | class ContextHelper(object): |
| 460 | def __init__(self, klass, Format): |
| 461 | if klass.__name__.endswith('Subst'): |
| 462 | Typ = 'Sub' |
| 463 | Type = 'Subst' |
| 464 | else: |
| 465 | Typ = 'Pos' |
| 466 | Type = 'Pos' |
| 467 | if klass.__name__.startswith('Chain'): |
| 468 | Chain = 'Chain' |
| 469 | else: |
| 470 | Chain = '' |
| 471 | ChainTyp = Chain+Typ |
| 472 | |
| 473 | self.Typ = Typ |
| 474 | self.Type = Type |
| 475 | self.Chain = Chain |
| 476 | self.ChainTyp = ChainTyp |
| 477 | |
| 478 | self.LookupRecord = Type+'LookupRecord' |
| 479 | |
| 480 | if Format == 1: |
| 481 | self.Rule = ChainTyp+'Rule' |
| 482 | self.RuleSet = ChainTyp+'RuleSet' |
| 483 | elif Format == 2: |
| 484 | self.Rule = ChainTyp+'ClassRule' |
| 485 | self.RuleSet = ChainTyp+'ClassSet' |
| 486 | |
| 487 | if self.Format not in [1, 2, 3]: |
| 488 | return None # Don't shoot the messenger; let it go |
| 489 | if not hasattr(self.__class__, "__ContextHelpers"): |
| 490 | self.__class__.__ContextHelpers = {} |
| 491 | if self.Format not in self.__class__.__ContextHelpers: |
| 492 | helper = ContextHelper(self.__class__, self.Format) |
| 493 | self.__class__.__ContextHelpers[self.Format] = helper |
| 494 | return self.__class__.__ContextHelpers[self.Format] |
| 495 | |
| 496 | |
| 497 | @_add_method(otTables.ContextSubst, |
| 498 | otTables.ChainContextSubst, |
| 499 | otTables.ContextPos, |
| 500 | otTables.ChainContextPos) |
| 501 | def mapLookups(self, lookupMap): |
| 502 | c = self.__classify_context() |
| 503 | |
| 504 | if self.Format in [1, 2]: |
| 505 | for rs in getattr(self, c.RuleSet): |
| 506 | if not rs: continue |
| 507 | for r in getattr(rs, c.Rule): |
| 508 | if not r: continue |
| 509 | for ll in getattr(r, c.LookupRecord): |
| 510 | if not ll: continue |
| 511 | ll.LookupListIndex = lookupMap[ll.LookupListIndex] |
| 512 | elif self.Format == 3: |
| 513 | for ll in getattr(self, c.LookupRecord): |
| 514 | if not ll: continue |
| 515 | ll.LookupListIndex = lookupMap[ll.LookupListIndex] |
| 516 | else: |
| 517 | assert 0, "unknown format: %s" % self.Format |
| 518 | |
| 519 | @_add_method(otTables.Lookup) |
| 520 | def mapLookups(self, lookupMap): |
| 521 | for st in self.SubTable: |
| 522 | if not st: continue |
| 523 | st.mapLookups(lookupMap) |
| 524 | |
| 525 | @_add_method(otTables.LookupList) |
| 526 | def mapLookups(self, lookupMap): |
| 527 | for l in self.Lookup: |
| 528 | if not l: continue |
| 529 | l.mapLookups(lookupMap) |
| 530 | |
Behdad Esfahbod | 2642934 | 2013-12-19 11:53:47 -0500 | [diff] [blame] | 531 | @_add_method(otTables.Feature) |
| 532 | def mapLookups(self, lookupMap): |
| 533 | self.LookupListIndex = [lookupMap[i] for i in self.LookupListIndex] |
| 534 | |
| 535 | @_add_method(otTables.FeatureList) |
| 536 | def mapLookups(self, lookupMap): |
| 537 | for f in self.FeatureRecord: |
| 538 | if not f or not f.Feature: continue |
| 539 | f.Feature.mapLookups(lookupMap) |
| 540 | |
| 541 | @_add_method(otTables.DefaultLangSys, |
| 542 | otTables.LangSys) |
| 543 | def mapFeatures(self, featureMap): |
| 544 | self.FeatureIndex = [featureMap[i] for i in self.FeatureIndex] |
| 545 | if self.ReqFeatureIndex != 65535: |
| 546 | self.ReqFeatureIndex = featureMap[self.ReqFeatureIndex] |
| 547 | |
| 548 | @_add_method(otTables.Script) |
| 549 | def mapFeatures(self, featureMap): |
| 550 | if self.DefaultLangSys: |
| 551 | self.DefaultLangSys.mapFeatures(featureMap) |
| 552 | for l in self.LangSysRecord: |
| 553 | if not l or not l.LangSys: continue |
| 554 | l.LangSys.mapFeatures(featureMap) |
| 555 | |
| 556 | @_add_method(otTables.ScriptList) |
Behdad Esfahbod | 398770d | 2013-12-19 15:30:24 -0500 | [diff] [blame] | 557 | def mapFeatures(self, featureMap): |
Behdad Esfahbod | 2642934 | 2013-12-19 11:53:47 -0500 | [diff] [blame] | 558 | for s in self.ScriptRecord: |
| 559 | if not s or not s.Script: continue |
| 560 | s.Script.mapFeatures(featureMap) |
| 561 | |
| 562 | |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 563 | class Options(object): |
| 564 | |
| 565 | class UnknownOptionError(Exception): |
| 566 | pass |
| 567 | |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 568 | def __init__(self, **kwargs): |
| 569 | |
| 570 | self.set(**kwargs) |
| 571 | |
| 572 | def set(self, **kwargs): |
Behdad Esfahbod | f63e80e | 2013-12-18 17:14:26 -0500 | [diff] [blame] | 573 | for k,v in kwargs.items(): |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 574 | if not hasattr(self, k): |
| 575 | raise self.UnknownOptionError("Unknown option '%s'" % k) |
| 576 | setattr(self, k, v) |
| 577 | |
| 578 | def parse_opts(self, argv, ignore_unknown=False): |
| 579 | ret = [] |
| 580 | opts = {} |
| 581 | for a in argv: |
| 582 | orig_a = a |
| 583 | if not a.startswith('--'): |
| 584 | ret.append(a) |
| 585 | continue |
| 586 | a = a[2:] |
| 587 | i = a.find('=') |
| 588 | op = '=' |
| 589 | if i == -1: |
| 590 | if a.startswith("no-"): |
| 591 | k = a[3:] |
| 592 | v = False |
| 593 | else: |
| 594 | k = a |
| 595 | v = True |
| 596 | else: |
| 597 | k = a[:i] |
| 598 | if k[-1] in "-+": |
| 599 | op = k[-1]+'=' # Ops is '-=' or '+=' now. |
| 600 | k = k[:-1] |
| 601 | v = a[i+1:] |
| 602 | k = k.replace('-', '_') |
| 603 | if not hasattr(self, k): |
| 604 | if ignore_unknown == True or k in ignore_unknown: |
| 605 | ret.append(orig_a) |
| 606 | continue |
| 607 | else: |
| 608 | raise self.UnknownOptionError("Unknown option '%s'" % a) |
| 609 | |
| 610 | ov = getattr(self, k) |
| 611 | if isinstance(ov, bool): |
| 612 | v = bool(v) |
| 613 | elif isinstance(ov, int): |
| 614 | v = int(v) |
| 615 | elif isinstance(ov, list): |
| 616 | vv = v.split(',') |
| 617 | if vv == ['']: |
| 618 | vv = [] |
| 619 | vv = [int(x, 0) if len(x) and x[0] in "0123456789" else x for x in vv] |
| 620 | if op == '=': |
| 621 | v = vv |
| 622 | elif op == '+=': |
| 623 | v = ov |
| 624 | v.extend(vv) |
| 625 | elif op == '-=': |
| 626 | v = ov |
| 627 | for x in vv: |
| 628 | if x in v: |
| 629 | v.remove(x) |
| 630 | else: |
| 631 | assert 0 |
| 632 | |
| 633 | opts[k] = v |
| 634 | self.set(**opts) |
| 635 | |
| 636 | return ret |
| 637 | |
| 638 | |
Behdad Esfahbod | 9e6adb6 | 2013-12-19 04:20:26 -0500 | [diff] [blame] | 639 | class Merger(object): |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 640 | |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 641 | def __init__(self, options=None, log=None): |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 642 | |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 643 | if not log: |
| 644 | log = Logger() |
| 645 | if not options: |
| 646 | options = Options() |
| 647 | |
| 648 | self.options = options |
| 649 | self.log = log |
| 650 | |
| 651 | def merge(self, fontfiles): |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 652 | |
| 653 | mega = ttLib.TTFont() |
| 654 | |
| 655 | # |
| 656 | # Settle on a mega glyph order. |
| 657 | # |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 658 | fonts = [ttLib.TTFont(fontfile) for fontfile in fontfiles] |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 659 | glyphOrders = [font.getGlyphOrder() for font in fonts] |
| 660 | megaGlyphOrder = self._mergeGlyphOrders(glyphOrders) |
| 661 | # Reload fonts and set new glyph names on them. |
| 662 | # TODO Is it necessary to reload font? I think it is. At least |
| 663 | # it's safer, in case tables were loaded to provide glyph names. |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 664 | fonts = [ttLib.TTFont(fontfile) for fontfile in fontfiles] |
Behdad Esfahbod | 3235a04 | 2013-09-19 20:57:33 -0400 | [diff] [blame] | 665 | for font,glyphOrder in zip(fonts, glyphOrders): |
| 666 | font.setGlyphOrder(glyphOrder) |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 667 | mega.setGlyphOrder(megaGlyphOrder) |
| 668 | |
Behdad Esfahbod | 2642934 | 2013-12-19 11:53:47 -0500 | [diff] [blame] | 669 | for font in fonts: |
| 670 | self._preMerge(font) |
| 671 | |
Behdad Esfahbod | f63e80e | 2013-12-18 17:14:26 -0500 | [diff] [blame] | 672 | allTags = reduce(set.union, (list(font.keys()) for font in fonts), set()) |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 673 | allTags.remove('GlyphOrder') |
| 674 | for tag in allTags: |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 675 | |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 676 | clazz = ttLib.getTableClass(tag) |
| 677 | |
Behdad Esfahbod | 2642934 | 2013-12-19 11:53:47 -0500 | [diff] [blame] | 678 | tables = [font.get(tag, NotImplemented) for font in fonts] |
Behdad Esfahbod | 92fd566 | 2013-12-19 04:56:50 -0500 | [diff] [blame] | 679 | table = clazz(tag).merge(self, tables) |
| 680 | if table is not NotImplemented and table is not False: |
Behdad Esfahbod | 65f19d8 | 2013-09-18 21:02:41 -0400 | [diff] [blame] | 681 | mega[tag] = table |
Behdad Esfahbod | b640f74 | 2013-09-19 20:12:56 -0400 | [diff] [blame] | 682 | self.log("Merged '%s'." % tag) |
Behdad Esfahbod | 65f19d8 | 2013-09-18 21:02:41 -0400 | [diff] [blame] | 683 | else: |
Behdad Esfahbod | 9e6adb6 | 2013-12-19 04:20:26 -0500 | [diff] [blame] | 684 | self.log("Dropped '%s'." % tag) |
Behdad Esfahbod | b640f74 | 2013-09-19 20:12:56 -0400 | [diff] [blame] | 685 | self.log.lapse("merge '%s'" % tag) |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 686 | |
Behdad Esfahbod | 2642934 | 2013-12-19 11:53:47 -0500 | [diff] [blame] | 687 | self._postMerge(mega) |
| 688 | |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 689 | return mega |
| 690 | |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 691 | def _mergeGlyphOrders(self, glyphOrders): |
Behdad Esfahbod | c2e27fd | 2013-09-20 16:25:48 -0400 | [diff] [blame] | 692 | """Modifies passed-in glyphOrders to reflect new glyph names. |
| 693 | Returns glyphOrder for the merged font.""" |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 694 | # Simply append font index to the glyph name for now. |
Behdad Esfahbod | c2e27fd | 2013-09-20 16:25:48 -0400 | [diff] [blame] | 695 | # TODO Even this simplistic numbering can result in conflicts. |
| 696 | # But then again, we have to improve this soon anyway. |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 697 | mega = [] |
| 698 | for n,glyphOrder in enumerate(glyphOrders): |
| 699 | for i,glyphName in enumerate(glyphOrder): |
Behdad Esfahbod | f63e80e | 2013-12-18 17:14:26 -0500 | [diff] [blame] | 700 | glyphName += "#" + repr(n) |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 701 | glyphOrder[i] = glyphName |
| 702 | mega.append(glyphName) |
| 703 | return mega |
| 704 | |
Behdad Esfahbod | 6baf26e | 2013-12-19 04:47:34 -0500 | [diff] [blame] | 705 | def mergeObjects(self, returnTable, logic, tables): |
Behdad Esfahbod | 92fd566 | 2013-12-19 04:56:50 -0500 | [diff] [blame] | 706 | # Right now we don't use self at all. Will use in the future |
| 707 | # for options and logging. |
| 708 | |
| 709 | if logic is NotImplemented: |
| 710 | return NotImplemented |
| 711 | |
| 712 | allKeys = set.union(set(), *(vars(table).keys() for table in tables if table is not NotImplemented)) |
Roozbeh Pournader | 47bee9c | 2013-12-18 00:45:12 -0800 | [diff] [blame] | 713 | for key in allKeys: |
Roozbeh Pournader | e219c6c | 2013-12-18 12:15:46 -0800 | [diff] [blame] | 714 | try: |
Behdad Esfahbod | 6baf26e | 2013-12-19 04:47:34 -0500 | [diff] [blame] | 715 | mergeLogic = logic[key] |
Roozbeh Pournader | e219c6c | 2013-12-18 12:15:46 -0800 | [diff] [blame] | 716 | except KeyError: |
Behdad Esfahbod | 9e6adb6 | 2013-12-19 04:20:26 -0500 | [diff] [blame] | 717 | try: |
Behdad Esfahbod | 6baf26e | 2013-12-19 04:47:34 -0500 | [diff] [blame] | 718 | mergeLogic = logic['*'] |
Behdad Esfahbod | 9e6adb6 | 2013-12-19 04:20:26 -0500 | [diff] [blame] | 719 | except KeyError: |
Behdad Esfahbod | 6baf26e | 2013-12-19 04:47:34 -0500 | [diff] [blame] | 720 | raise Exception("Don't know how to merge key %s of class %s" % |
| 721 | (key, returnTable.__class__.__name__)) |
Behdad Esfahbod | 92fd566 | 2013-12-19 04:56:50 -0500 | [diff] [blame] | 722 | if mergeLogic is NotImplemented: |
Roozbeh Pournader | e219c6c | 2013-12-18 12:15:46 -0800 | [diff] [blame] | 723 | continue |
Behdad Esfahbod | 92fd566 | 2013-12-19 04:56:50 -0500 | [diff] [blame] | 724 | value = mergeLogic(getattr(table, key, NotImplemented) for table in tables) |
| 725 | if value is not NotImplemented: |
| 726 | setattr(returnTable, key, value) |
| 727 | |
| 728 | return returnTable |
Roozbeh Pournader | 47bee9c | 2013-12-18 00:45:12 -0800 | [diff] [blame] | 729 | |
Behdad Esfahbod | 2642934 | 2013-12-19 11:53:47 -0500 | [diff] [blame] | 730 | def _preMerge(self, font): |
| 731 | |
Behdad Esfahbod | 2642934 | 2013-12-19 11:53:47 -0500 | [diff] [blame] | 732 | GDEF = font.get('GDEF') |
| 733 | GSUB = font.get('GSUB') |
| 734 | GPOS = font.get('GPOS') |
| 735 | |
| 736 | for t in [GSUB, GPOS]: |
Behdad Esfahbod | 398770d | 2013-12-19 15:30:24 -0500 | [diff] [blame] | 737 | if not t: continue |
Behdad Esfahbod | 2642934 | 2013-12-19 11:53:47 -0500 | [diff] [blame] | 738 | |
Behdad Esfahbod | 5080331 | 2014-02-10 18:14:37 -0500 | [diff] [blame] | 739 | if t.table.LookupList: |
Behdad Esfahbod | b76d6ff | 2013-12-20 20:24:27 -0500 | [diff] [blame] | 740 | lookupMap = {i:id(v) for i,v in enumerate(t.table.LookupList.Lookup)} |
Behdad Esfahbod | 5080331 | 2014-02-10 18:14:37 -0500 | [diff] [blame] | 741 | t.table.LookupList.mapLookups(lookupMap) |
| 742 | if t.table.FeatureList: |
| 743 | # XXX Handle present FeatureList but absent LookupList |
| 744 | t.table.FeatureList.mapLookups(lookupMap) |
Behdad Esfahbod | 398770d | 2013-12-19 15:30:24 -0500 | [diff] [blame] | 745 | |
| 746 | if t.table.FeatureList and t.table.ScriptList: |
Behdad Esfahbod | b76d6ff | 2013-12-20 20:24:27 -0500 | [diff] [blame] | 747 | featureMap = {i:id(v) for i,v in enumerate(t.table.FeatureList.FeatureRecord)} |
Behdad Esfahbod | 398770d | 2013-12-19 15:30:24 -0500 | [diff] [blame] | 748 | t.table.ScriptList.mapFeatures(featureMap) |
| 749 | |
| 750 | # TODO GDEF/Lookup MarkFilteringSets |
Behdad Esfahbod | 2642934 | 2013-12-19 11:53:47 -0500 | [diff] [blame] | 751 | # TODO FeatureParams nameIDs |
| 752 | |
| 753 | def _postMerge(self, font): |
Behdad Esfahbod | 398770d | 2013-12-19 15:30:24 -0500 | [diff] [blame] | 754 | |
| 755 | GDEF = font.get('GDEF') |
| 756 | GSUB = font.get('GSUB') |
| 757 | GPOS = font.get('GPOS') |
| 758 | |
| 759 | for t in [GSUB, GPOS]: |
| 760 | if not t: continue |
| 761 | |
Behdad Esfahbod | 5080331 | 2014-02-10 18:14:37 -0500 | [diff] [blame] | 762 | if t.table.LookupList: |
Behdad Esfahbod | b76d6ff | 2013-12-20 20:24:27 -0500 | [diff] [blame] | 763 | lookupMap = {id(v):i for i,v in enumerate(t.table.LookupList.Lookup)} |
Behdad Esfahbod | 5080331 | 2014-02-10 18:14:37 -0500 | [diff] [blame] | 764 | t.table.LookupList.mapLookups(lookupMap) |
| 765 | if t.table.FeatureList: |
| 766 | # XXX Handle present FeatureList but absent LookupList |
| 767 | t.table.FeatureList.mapLookups(lookupMap) |
Behdad Esfahbod | 398770d | 2013-12-19 15:30:24 -0500 | [diff] [blame] | 768 | |
| 769 | if t.table.FeatureList and t.table.ScriptList: |
Behdad Esfahbod | 5080331 | 2014-02-10 18:14:37 -0500 | [diff] [blame] | 770 | # XXX Handle present ScriptList but absent FeatureList |
Behdad Esfahbod | b76d6ff | 2013-12-20 20:24:27 -0500 | [diff] [blame] | 771 | featureMap = {id(v):i for i,v in enumerate(t.table.FeatureList.FeatureRecord)} |
Behdad Esfahbod | 398770d | 2013-12-19 15:30:24 -0500 | [diff] [blame] | 772 | t.table.ScriptList.mapFeatures(featureMap) |
| 773 | |
| 774 | # TODO GDEF/Lookup MarkFilteringSets |
| 775 | # TODO FeatureParams nameIDs |
Behdad Esfahbod | 2642934 | 2013-12-19 11:53:47 -0500 | [diff] [blame] | 776 | |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 777 | |
| 778 | class Logger(object): |
| 779 | |
| 780 | def __init__(self, verbose=False, xml=False, timing=False): |
| 781 | self.verbose = verbose |
| 782 | self.xml = xml |
| 783 | self.timing = timing |
| 784 | self.last_time = self.start_time = time.time() |
| 785 | |
| 786 | def parse_opts(self, argv): |
| 787 | argv = argv[:] |
| 788 | for v in ['verbose', 'xml', 'timing']: |
| 789 | if "--"+v in argv: |
| 790 | setattr(self, v, True) |
| 791 | argv.remove("--"+v) |
| 792 | return argv |
| 793 | |
| 794 | def __call__(self, *things): |
| 795 | if not self.verbose: |
| 796 | return |
Behdad Esfahbod | f63e80e | 2013-12-18 17:14:26 -0500 | [diff] [blame] | 797 | print(' '.join(str(x) for x in things)) |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 798 | |
| 799 | def lapse(self, *things): |
| 800 | if not self.timing: |
| 801 | return |
| 802 | new_time = time.time() |
Behdad Esfahbod | f63e80e | 2013-12-18 17:14:26 -0500 | [diff] [blame] | 803 | print("Took %0.3fs to %s" %(new_time - self.last_time, |
| 804 | ' '.join(str(x) for x in things))) |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 805 | self.last_time = new_time |
| 806 | |
| 807 | def font(self, font, file=sys.stdout): |
| 808 | if not self.xml: |
| 809 | return |
| 810 | from fontTools.misc import xmlWriter |
| 811 | writer = xmlWriter.XMLWriter(file) |
| 812 | font.disassembleInstructions = False # Work around ttLib bug |
| 813 | for tag in font.keys(): |
| 814 | writer.begintag(tag) |
| 815 | writer.newline() |
| 816 | font[tag].toXML(writer, font) |
| 817 | writer.endtag(tag) |
| 818 | writer.newline() |
| 819 | |
| 820 | |
| 821 | __all__ = [ |
| 822 | 'Options', |
| 823 | 'Merger', |
| 824 | 'Logger', |
| 825 | 'main' |
| 826 | ] |
| 827 | |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 828 | def main(args): |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 829 | |
| 830 | log = Logger() |
| 831 | args = log.parse_opts(args) |
| 832 | |
| 833 | options = Options() |
| 834 | args = options.parse_opts(args) |
| 835 | |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 836 | if len(args) < 1: |
Behdad Esfahbod | f63e80e | 2013-12-18 17:14:26 -0500 | [diff] [blame] | 837 | print("usage: pyftmerge font...", file=sys.stderr) |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 838 | sys.exit(1) |
Behdad Esfahbod | f2d5982 | 2013-09-19 16:16:39 -0400 | [diff] [blame] | 839 | |
| 840 | merger = Merger(options=options, log=log) |
| 841 | font = merger.merge(args) |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 842 | outfile = 'merged.ttf' |
| 843 | font.save(outfile) |
Behdad Esfahbod | b640f74 | 2013-09-19 20:12:56 -0400 | [diff] [blame] | 844 | log.lapse("compile and save font") |
| 845 | |
| 846 | log.last_time = log.start_time |
| 847 | log.lapse("make one with everything(TOTAL TIME)") |
Behdad Esfahbod | 45d2f38 | 2013-09-18 20:47:53 -0400 | [diff] [blame] | 848 | |
| 849 | if __name__ == "__main__": |
| 850 | main(sys.argv[1:]) |