Just | 7842e56 | 1999-12-16 21:34:53 +0000 | [diff] [blame] | 1 | """cffLib.py -- read/write tools for Adobe CFF fonts.""" |
| 2 | |
Just | ec46d16 | 1999-12-20 22:02:10 +0000 | [diff] [blame] | 3 | # |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 4 | # $Id: cffLib.py,v 1.21 2002-05-23 21:50:36 jvr Exp $ |
Just | ec46d16 | 1999-12-20 22:02:10 +0000 | [diff] [blame] | 5 | # |
Just | 7842e56 | 1999-12-16 21:34:53 +0000 | [diff] [blame] | 6 | |
| 7 | import struct, sstruct |
| 8 | import string |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 9 | from types import FloatType, ListType, TupleType |
Just | 528614e | 2000-01-16 22:14:02 +0000 | [diff] [blame] | 10 | from fontTools.misc import psCharStrings |
Just | 7842e56 | 1999-12-16 21:34:53 +0000 | [diff] [blame] | 11 | |
| 12 | |
jvr | 767102e | 2002-05-17 07:06:32 +0000 | [diff] [blame] | 13 | DEBUG = 0 |
| 14 | |
| 15 | |
Just | 7842e56 | 1999-12-16 21:34:53 +0000 | [diff] [blame] | 16 | cffHeaderFormat = """ |
| 17 | major: B |
| 18 | minor: B |
| 19 | hdrSize: B |
| 20 | offSize: B |
| 21 | """ |
| 22 | |
| 23 | class CFFFontSet: |
| 24 | |
| 25 | def __init__(self): |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 26 | pass |
Just | 7842e56 | 1999-12-16 21:34:53 +0000 | [diff] [blame] | 27 | |
jvr | a2a75b3 | 2002-05-13 11:25:17 +0000 | [diff] [blame] | 28 | def decompile(self, file): |
| 29 | sstruct.unpack(cffHeaderFormat, file.read(4), self) |
Just | 7842e56 | 1999-12-16 21:34:53 +0000 | [diff] [blame] | 30 | assert self.major == 1 and self.minor == 0, \ |
| 31 | "unknown CFF format: %d.%d" % (self.major, self.minor) |
Just | 7842e56 | 1999-12-16 21:34:53 +0000 | [diff] [blame] | 32 | |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 33 | file.seek(self.hdrSize) |
jvr | 767102e | 2002-05-17 07:06:32 +0000 | [diff] [blame] | 34 | self.fontNames = list(Index(file, "fontNames")) |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 35 | self.topDictIndex = TopDictIndex(file) |
jvr | 767102e | 2002-05-17 07:06:32 +0000 | [diff] [blame] | 36 | self.strings = IndexedStrings(file) |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 37 | self.GlobalSubrs = GlobalSubrsIndex(file, name="GlobalSubrsIndex") |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 38 | self.topDictIndex.strings = self.strings |
jvr | 016ca76 | 2002-05-16 18:38:03 +0000 | [diff] [blame] | 39 | self.topDictIndex.GlobalSubrs = self.GlobalSubrs |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 40 | |
| 41 | def __len__(self): |
| 42 | return len(self.fontNames) |
| 43 | |
| 44 | def keys(self): |
| 45 | return self.fontNames[:] |
| 46 | |
jvr | 767102e | 2002-05-17 07:06:32 +0000 | [diff] [blame] | 47 | def values(self): |
| 48 | return self.topDictIndex |
| 49 | |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 50 | def __getitem__(self, name): |
| 51 | try: |
| 52 | index = self.fontNames.index(name) |
| 53 | except ValueError: |
| 54 | raise KeyError, name |
jvr | 016ca76 | 2002-05-16 18:38:03 +0000 | [diff] [blame] | 55 | return self.topDictIndex[index] |
Just | 7842e56 | 1999-12-16 21:34:53 +0000 | [diff] [blame] | 56 | |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 57 | def compile(self, file): |
Just | 7842e56 | 1999-12-16 21:34:53 +0000 | [diff] [blame] | 58 | strings = IndexedStrings() |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 59 | writer = CFFWriter() |
| 60 | writer.add(sstruct.pack(cffHeaderFormat, self)) |
| 61 | fontNames = Index() |
| 62 | for name in self.fontNames: |
| 63 | fontNames.append(name) |
| 64 | writer.add(fontNames.getCompiler(strings, None)) |
| 65 | topCompiler = self.topDictIndex.getCompiler(strings, None) |
| 66 | writer.add(topCompiler) |
| 67 | writer.add(strings.getCompiler()) |
| 68 | writer.add(self.GlobalSubrs.getCompiler(strings, None)) |
| 69 | |
| 70 | for child in topCompiler.getChildren(strings): |
| 71 | writer.add(child) |
| 72 | |
| 73 | print writer.data |
| 74 | |
| 75 | writer.toFile(file) |
Just | 7842e56 | 1999-12-16 21:34:53 +0000 | [diff] [blame] | 76 | |
| 77 | def toXML(self, xmlWriter, progress=None): |
| 78 | xmlWriter.newline() |
| 79 | for fontName in self.fontNames: |
| 80 | xmlWriter.begintag("CFFFont", name=fontName) |
| 81 | xmlWriter.newline() |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 82 | font = self[fontName] |
Just | 7842e56 | 1999-12-16 21:34:53 +0000 | [diff] [blame] | 83 | font.toXML(xmlWriter, progress) |
| 84 | xmlWriter.endtag("CFFFont") |
| 85 | xmlWriter.newline() |
| 86 | xmlWriter.newline() |
| 87 | xmlWriter.begintag("GlobalSubrs") |
| 88 | xmlWriter.newline() |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 89 | self.GlobalSubrs.toXML(xmlWriter, progress) |
Just | 7842e56 | 1999-12-16 21:34:53 +0000 | [diff] [blame] | 90 | xmlWriter.endtag("GlobalSubrs") |
| 91 | xmlWriter.newline() |
| 92 | xmlWriter.newline() |
| 93 | |
| 94 | def fromXML(self, (name, attrs, content)): |
| 95 | xxx |
| 96 | |
| 97 | |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 98 | class CFFWriter: |
| 99 | |
| 100 | def __init__(self): |
| 101 | self.data = [] |
| 102 | |
| 103 | def add(self, table): |
| 104 | self.data.append(table) |
| 105 | |
| 106 | def toFile(self, file): |
| 107 | lastPosList = None |
| 108 | count = 1 |
| 109 | while 1: |
| 110 | print "XXX iteration", count |
| 111 | count += 1 |
| 112 | pos = 0 |
| 113 | posList = [pos] |
| 114 | for item in self.data: |
| 115 | if hasattr(item, "setPos"): |
| 116 | item.setPos(pos) |
| 117 | if hasattr(item, "getDataLength"): |
| 118 | pos = pos + item.getDataLength() |
| 119 | else: |
| 120 | pos = pos + len(item) |
| 121 | posList.append(pos) |
| 122 | if posList == lastPosList: |
| 123 | break |
| 124 | lastPosList = posList |
| 125 | begin = file.tell() |
| 126 | posList = [0] |
| 127 | for item in self.data: |
| 128 | if hasattr(item, "toFile"): |
| 129 | item.toFile(file) |
| 130 | else: |
| 131 | file.write(item) |
| 132 | posList.append(file.tell() - begin) |
| 133 | if posList != lastPosList: |
| 134 | print "++++" |
| 135 | print posList |
| 136 | print lastPosList |
| 137 | assert posList == lastPosList |
| 138 | |
| 139 | |
| 140 | def calcOffSize(largestOffset): |
| 141 | if largestOffset < 0x100: |
| 142 | offSize = 1 |
| 143 | elif largestOffset < 0x10000: |
| 144 | offSize = 2 |
| 145 | elif largestOffset < 0x1000000: |
| 146 | offSize = 3 |
| 147 | else: |
| 148 | offSize = 4 |
| 149 | return offSize |
| 150 | |
| 151 | |
| 152 | class IndexCompiler: |
| 153 | |
| 154 | def __init__(self, items, strings, parent): |
| 155 | self.items = self.getItems(items, strings) |
| 156 | self.parent = parent |
| 157 | |
| 158 | def getItems(self, items, strings): |
| 159 | return items |
| 160 | |
| 161 | def getOffsets(self): |
| 162 | pos = 1 |
| 163 | offsets = [pos] |
| 164 | for item in self.items: |
| 165 | if hasattr(item, "getDataLength"): |
| 166 | pos = pos + item.getDataLength() |
| 167 | else: |
| 168 | pos = pos + len(item) |
| 169 | offsets.append(pos) |
| 170 | return offsets |
| 171 | |
| 172 | def getDataLength(self): |
| 173 | lastOffset = self.getOffsets()[-1] |
| 174 | offSize = calcOffSize(lastOffset) |
| 175 | dataLength = ( |
| 176 | 2 + # count |
| 177 | 1 + # offSize |
| 178 | (len(self.items) + 1) * offSize + # the offsets |
| 179 | lastOffset - 1 # size of object data |
| 180 | ) |
| 181 | return dataLength |
| 182 | |
| 183 | def toFile(self, file): |
| 184 | size = self.getDataLength() |
| 185 | start = file.tell() |
| 186 | offsets = self.getOffsets() |
| 187 | writeCard16(file, len(self.items)) |
| 188 | offSize = calcOffSize(offsets[-1]) |
| 189 | writeCard8(file, offSize) |
| 190 | offSize = -offSize |
| 191 | pack = struct.pack |
| 192 | for offset in offsets: |
| 193 | binOffset = pack(">l", offset)[offSize:] |
| 194 | assert len(binOffset) == -offSize |
| 195 | file.write(binOffset) |
| 196 | for item in self.items: |
| 197 | if hasattr(item, "toFile"): |
| 198 | item.toFile(file) |
| 199 | else: |
| 200 | file.write(item) |
| 201 | assert start + size == file.tell() |
| 202 | |
| 203 | |
| 204 | class IndexedStringsCompiler(IndexCompiler): |
| 205 | |
| 206 | def getItems(self, items, strings): |
| 207 | return items.strings |
| 208 | |
| 209 | |
| 210 | class TopDictIndexCompiler(IndexCompiler): |
| 211 | |
| 212 | def getItems(self, items, strings): |
| 213 | out = [] |
| 214 | for item in items: |
| 215 | out.append(item.getCompiler(strings, self)) |
| 216 | return out |
| 217 | |
| 218 | def getChildren(self, strings): |
| 219 | children = [] |
| 220 | for topDict in self.items: |
| 221 | children.extend(topDict.getChildren(strings)) |
| 222 | return children |
| 223 | |
| 224 | |
| 225 | class GlobalSubrsCompiler(IndexCompiler): |
| 226 | def getItems(self, items, strings): |
| 227 | out = [] |
| 228 | for cs in items: |
| 229 | cs.compile() |
| 230 | out.append(cs.bytecode) |
| 231 | return out |
| 232 | |
| 233 | class SubrsCompiler(GlobalSubrsCompiler): |
| 234 | def setPos(self, pos): |
| 235 | offset = pos - self.parent.pos |
| 236 | self.parent.rawDict["Subrs"] = offset |
| 237 | |
| 238 | class CharStringsCompiler(GlobalSubrsCompiler): |
| 239 | def setPos(self, pos): |
| 240 | self.parent.rawDict["CharStrings"] = pos |
| 241 | |
| 242 | |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 243 | class Index: |
Just | 7842e56 | 1999-12-16 21:34:53 +0000 | [diff] [blame] | 244 | |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 245 | """This class represents what the CFF spec calls an INDEX.""" |
Just | 7842e56 | 1999-12-16 21:34:53 +0000 | [diff] [blame] | 246 | |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 247 | compilerClass = IndexCompiler |
| 248 | |
| 249 | def __init__(self, file=None, name=None): |
jvr | 767102e | 2002-05-17 07:06:32 +0000 | [diff] [blame] | 250 | if name is None: |
| 251 | name = self.__class__.__name__ |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 252 | if file is None: |
| 253 | self.items = [] |
| 254 | return |
jvr | 767102e | 2002-05-17 07:06:32 +0000 | [diff] [blame] | 255 | if DEBUG: |
| 256 | print "loading %s at %s" % (name, file.tell()) |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 257 | self.file = file |
jvr | a2ad544 | 2002-05-17 18:36:07 +0000 | [diff] [blame] | 258 | count = readCard16(file) |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 259 | self.count = count |
| 260 | self.items = [None] * count |
| 261 | if count == 0: |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 262 | self.items = [] |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 263 | return |
jvr | a2ad544 | 2002-05-17 18:36:07 +0000 | [diff] [blame] | 264 | offSize = readCard8(file) |
jvr | 767102e | 2002-05-17 07:06:32 +0000 | [diff] [blame] | 265 | if DEBUG: |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 266 | print " index count: %s offSize: %s" % (count, offSize) |
jvr | 767102e | 2002-05-17 07:06:32 +0000 | [diff] [blame] | 267 | assert offSize <= 4, "offSize too large: %s" % offSize |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 268 | self.offsets = offsets = [] |
| 269 | pad = '\0' * (4 - offSize) |
| 270 | for index in range(count+1): |
| 271 | chunk = file.read(offSize) |
| 272 | chunk = pad + chunk |
| 273 | offset, = struct.unpack(">L", chunk) |
| 274 | offsets.append(int(offset)) |
| 275 | self.offsetBase = file.tell() - 1 |
| 276 | file.seek(self.offsetBase + offsets[-1]) # pretend we've read the whole lot |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 277 | if DEBUG: |
| 278 | print " end of %s at %s" % (name, file.tell()) |
Just | 7842e56 | 1999-12-16 21:34:53 +0000 | [diff] [blame] | 279 | |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 280 | def __len__(self): |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 281 | return len(self.items) |
jvr | a2a75b3 | 2002-05-13 11:25:17 +0000 | [diff] [blame] | 282 | |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 283 | def __getitem__(self, index): |
| 284 | item = self.items[index] |
| 285 | if item is not None: |
| 286 | return item |
| 287 | offset = self.offsets[index] + self.offsetBase |
| 288 | size = self.offsets[index+1] - self.offsets[index] |
| 289 | file = self.file |
| 290 | file.seek(offset) |
| 291 | data = file.read(size) |
| 292 | assert len(data) == size |
jvr | a2ad544 | 2002-05-17 18:36:07 +0000 | [diff] [blame] | 293 | item = self.produceItem(index, data, file, offset, size) |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 294 | self.items[index] = item |
| 295 | return item |
| 296 | |
jvr | a2ad544 | 2002-05-17 18:36:07 +0000 | [diff] [blame] | 297 | def produceItem(self, index, data, file, offset, size): |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 298 | return data |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 299 | |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 300 | def append(self, item): |
| 301 | self.items.append(item) |
| 302 | |
| 303 | def getCompiler(self, strings, parent): |
| 304 | return self.compilerClass(self, strings, parent) |
| 305 | |
| 306 | |
| 307 | class GlobalSubrsIndex(Index): |
| 308 | |
| 309 | compilerClass = GlobalSubrsCompiler |
| 310 | |
| 311 | def __init__(self, file=None, globalSubrs=None, private=None, fdSelect=None, fdArray=None, |
jvr | a2ad544 | 2002-05-17 18:36:07 +0000 | [diff] [blame] | 312 | name=None): |
| 313 | Index.__init__(self, file, name) |
| 314 | self.globalSubrs = globalSubrs |
| 315 | self.private = private |
| 316 | self.fdSelect = fdSelect |
| 317 | self.fdArray = fdArray |
| 318 | |
| 319 | def produceItem(self, index, data, file, offset, size): |
| 320 | if self.private is not None: |
| 321 | private = self.private |
| 322 | elif self.fdArray is not None: |
| 323 | private = self.fdArray[self.fdSelect[index]].Private |
| 324 | else: |
| 325 | private = None |
| 326 | if hasattr(private, "Subrs"): |
| 327 | subrs = private.Subrs |
| 328 | else: |
| 329 | subrs = [] |
| 330 | return psCharStrings.T2CharString(data, subrs=subrs, globalSubrs=self.globalSubrs) |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 331 | |
| 332 | def toXML(self, xmlWriter, progress): |
jvr | a2ad544 | 2002-05-17 18:36:07 +0000 | [diff] [blame] | 333 | fdSelect = self.fdSelect |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 334 | for i in range(len(self)): |
| 335 | xmlWriter.begintag("CharString", index=i) |
| 336 | xmlWriter.newline() |
| 337 | self[i].toXML(xmlWriter) |
| 338 | xmlWriter.endtag("CharString") |
| 339 | xmlWriter.newline() |
jvr | a2ad544 | 2002-05-17 18:36:07 +0000 | [diff] [blame] | 340 | |
| 341 | def getItemAndSelector(self, index): |
| 342 | fdSelect = self.fdSelect |
| 343 | if fdSelect is None: |
| 344 | sel = None |
| 345 | else: |
| 346 | sel = fdSelect[index] |
| 347 | return self[index], sel |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 348 | |
| 349 | class SubrsIndex(GlobalSubrsIndex): |
| 350 | compilerClass = SubrsCompiler |
| 351 | |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 352 | |
jvr | 767102e | 2002-05-17 07:06:32 +0000 | [diff] [blame] | 353 | class TopDictIndex(Index): |
jvr | a2ad544 | 2002-05-17 18:36:07 +0000 | [diff] [blame] | 354 | |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 355 | compilerClass = TopDictIndexCompiler |
| 356 | |
jvr | a2ad544 | 2002-05-17 18:36:07 +0000 | [diff] [blame] | 357 | def produceItem(self, index, data, file, offset, size): |
jvr | 767102e | 2002-05-17 07:06:32 +0000 | [diff] [blame] | 358 | top = TopDict(self.strings, file, offset, self.GlobalSubrs) |
| 359 | top.decompile(data) |
| 360 | return top |
jvr | a2ad544 | 2002-05-17 18:36:07 +0000 | [diff] [blame] | 361 | |
| 362 | def toXML(self, xmlWriter, progress): |
| 363 | for i in range(len(self)): |
| 364 | xmlWriter.begintag("FontDict", index=i) |
| 365 | xmlWriter.newline() |
| 366 | self[i].toXML(xmlWriter, progress) |
| 367 | xmlWriter.endtag("FontDict") |
| 368 | xmlWriter.newline() |
jvr | 767102e | 2002-05-17 07:06:32 +0000 | [diff] [blame] | 369 | |
| 370 | |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 371 | class CharStrings: |
| 372 | |
jvr | a2ad544 | 2002-05-17 18:36:07 +0000 | [diff] [blame] | 373 | def __init__(self, file, charset, globalSubrs, private, fdSelect, fdArray): |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 374 | self.charStringsIndex = SubrsIndex(file, globalSubrs, private, fdSelect, fdArray) |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 375 | self.nameToIndex = nameToIndex = {} |
| 376 | for i in range(len(charset)): |
| 377 | nameToIndex[charset[i]] = i |
| 378 | |
| 379 | def keys(self): |
| 380 | return self.nameToIndex.keys() |
| 381 | |
jvr | 016ca76 | 2002-05-16 18:38:03 +0000 | [diff] [blame] | 382 | def values(self): |
jvr | 767102e | 2002-05-17 07:06:32 +0000 | [diff] [blame] | 383 | return self.charStringsIndex |
jvr | 016ca76 | 2002-05-16 18:38:03 +0000 | [diff] [blame] | 384 | |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 385 | def has_key(self, name): |
| 386 | return self.nameToIndex.has_key(name) |
| 387 | |
jvr | 767102e | 2002-05-17 07:06:32 +0000 | [diff] [blame] | 388 | def __len__(self): |
| 389 | return len(self.charStringsIndex) |
| 390 | |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 391 | def __getitem__(self, name): |
| 392 | index = self.nameToIndex[name] |
| 393 | return self.charStringsIndex[index] |
| 394 | |
jvr | a2ad544 | 2002-05-17 18:36:07 +0000 | [diff] [blame] | 395 | def getItemAndSelector(self, name): |
| 396 | index = self.nameToIndex[name] |
| 397 | return self.charStringsIndex.getItemAndSelector(index) |
| 398 | |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 399 | def toXML(self, xmlWriter, progress): |
| 400 | names = self.keys() |
| 401 | names.sort() |
| 402 | for name in names: |
jvr | a2ad544 | 2002-05-17 18:36:07 +0000 | [diff] [blame] | 403 | charStr, fdSelect = self.getItemAndSelector(name) |
| 404 | if fdSelect is None: |
| 405 | xmlWriter.begintag("CharString", name=name) |
| 406 | else: |
| 407 | xmlWriter.begintag("CharString", |
| 408 | [('name', name), ('fdSelect', fdSelect)]) |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 409 | xmlWriter.newline() |
| 410 | self[name].toXML(xmlWriter) |
| 411 | xmlWriter.endtag("CharString") |
| 412 | xmlWriter.newline() |
| 413 | |
| 414 | |
jvr | a2ad544 | 2002-05-17 18:36:07 +0000 | [diff] [blame] | 415 | def readCard8(file): |
| 416 | return ord(file.read(1)) |
| 417 | |
| 418 | def readCard16(file): |
| 419 | value, = struct.unpack(">H", file.read(2)) |
| 420 | return value |
| 421 | |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 422 | def writeCard8(file, value): |
| 423 | file.write(chr(value)) |
| 424 | |
| 425 | def writeCard16(file, value): |
| 426 | file.write(struct.pack(">H", value)) |
| 427 | |
| 428 | def packCard8(value): |
| 429 | return chr(value) |
| 430 | |
| 431 | def packCard16(value): |
| 432 | return struct.pack(">H", value) |
| 433 | |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 434 | def buildOperatorDict(table): |
| 435 | d = {} |
| 436 | for op, name, arg, default, conv in table: |
| 437 | d[op] = (name, arg) |
| 438 | return d |
| 439 | |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 440 | def buildOpcodeDict(table): |
| 441 | d = {} |
| 442 | for op, name, arg, default, conv in table: |
| 443 | if type(op) == TupleType: |
| 444 | op = chr(op[0]) + chr(op[1]) |
| 445 | else: |
| 446 | op = chr(op) |
| 447 | d[name] = (op, arg) |
| 448 | return d |
| 449 | |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 450 | def buildOrder(table): |
| 451 | l = [] |
| 452 | for op, name, arg, default, conv in table: |
| 453 | l.append(name) |
| 454 | return l |
| 455 | |
| 456 | def buildDefaults(table): |
| 457 | d = {} |
| 458 | for op, name, arg, default, conv in table: |
| 459 | if default is not None: |
| 460 | d[name] = default |
| 461 | return d |
| 462 | |
| 463 | def buildConverters(table): |
| 464 | d = {} |
| 465 | for op, name, arg, default, conv in table: |
| 466 | d[name] = conv |
| 467 | return d |
| 468 | |
| 469 | |
jvr | 7ce02ea | 2002-05-17 20:04:05 +0000 | [diff] [blame] | 470 | class BaseConverter: |
| 471 | def read(self, parent, value): |
| 472 | return value |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 473 | def write(self, parent, value): |
| 474 | return value |
jvr | a2ad544 | 2002-05-17 18:36:07 +0000 | [diff] [blame] | 475 | def xmlWrite(self, xmlWriter, name, value): |
| 476 | xmlWriter.begintag(name) |
| 477 | xmlWriter.newline() |
| 478 | value.toXML(xmlWriter, None) |
| 479 | xmlWriter.endtag(name) |
| 480 | xmlWriter.newline() |
| 481 | |
jvr | 7ce02ea | 2002-05-17 20:04:05 +0000 | [diff] [blame] | 482 | class PrivateDictConverter(BaseConverter): |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 483 | def read(self, parent, value): |
| 484 | size, offset = value |
| 485 | file = parent.file |
| 486 | pr = PrivateDict(parent.strings, file, offset) |
| 487 | file.seek(offset) |
| 488 | data = file.read(size) |
| 489 | len(data) == size |
| 490 | pr.decompile(data) |
| 491 | return pr |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 492 | def write(self, parent, value): |
| 493 | return (0, 0) # dummy value |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 494 | |
jvr | 7ce02ea | 2002-05-17 20:04:05 +0000 | [diff] [blame] | 495 | class SubrsConverter(BaseConverter): |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 496 | def read(self, parent, value): |
| 497 | file = parent.file |
| 498 | file.seek(parent.offset + value) # Offset(self) |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 499 | return SubrsIndex(file, name="SubrsIndex") |
| 500 | def write(self, parent, value): |
| 501 | return 0 # dummy value |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 502 | |
jvr | 7ce02ea | 2002-05-17 20:04:05 +0000 | [diff] [blame] | 503 | class CharStringsConverter(BaseConverter): |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 504 | def read(self, parent, value): |
| 505 | file = parent.file |
jvr | 767102e | 2002-05-17 07:06:32 +0000 | [diff] [blame] | 506 | charset = parent.charset |
jvr | a2ad544 | 2002-05-17 18:36:07 +0000 | [diff] [blame] | 507 | globalSubrs = parent.GlobalSubrs |
| 508 | if hasattr(parent, "ROS"): |
| 509 | fdSelect, fdArray = parent.FDSelect, parent.FDArray |
| 510 | private = None |
| 511 | else: |
| 512 | fdSelect, fdArray = None, None |
| 513 | private = parent.Private |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 514 | file.seek(value) # Offset(0) |
jvr | a2ad544 | 2002-05-17 18:36:07 +0000 | [diff] [blame] | 515 | return CharStrings(file, charset, globalSubrs, private, fdSelect, fdArray) |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 516 | def write(self, parent, value): |
| 517 | return 0 # dummy value |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 518 | |
| 519 | class CharsetConverter: |
| 520 | def read(self, parent, value): |
| 521 | isCID = hasattr(parent, "ROS") |
| 522 | if value > 2: |
| 523 | numGlyphs = parent.numGlyphs |
| 524 | file = parent.file |
| 525 | file.seek(value) |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 526 | if DEBUG: |
| 527 | print "loading charset at %s" % value |
jvr | a2ad544 | 2002-05-17 18:36:07 +0000 | [diff] [blame] | 528 | format = readCard8(file) |
Just | 7842e56 | 1999-12-16 21:34:53 +0000 | [diff] [blame] | 529 | if format == 0: |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 530 | charset =parseCharset0(numGlyphs, file, parent.strings) |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 531 | elif format == 1 or format == 2: |
| 532 | charset = parseCharset(numGlyphs, file, parent.strings, isCID, format) |
Just | 7842e56 | 1999-12-16 21:34:53 +0000 | [diff] [blame] | 533 | else: |
jvr | 1890b95 | 2002-05-15 07:41:30 +0000 | [diff] [blame] | 534 | raise NotImplementedError |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 535 | assert len(charset) == numGlyphs |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 536 | if DEBUG: |
| 537 | print " charset end at %s" % file.tell() |
jvr | 1890b95 | 2002-05-15 07:41:30 +0000 | [diff] [blame] | 538 | else: |
jvr | a2ad544 | 2002-05-17 18:36:07 +0000 | [diff] [blame] | 539 | if isCID or not hasattr(parent, "CharStrings"): |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 540 | assert value == 0 |
| 541 | charset = None |
| 542 | elif value == 0: |
| 543 | charset = ISOAdobe |
| 544 | elif value == 1: |
| 545 | charset = Expert |
| 546 | elif value == 2: |
| 547 | charset = ExpertSubset |
jvr | 1890b95 | 2002-05-15 07:41:30 +0000 | [diff] [blame] | 548 | # self.charset: |
| 549 | # 0: ISOAdobe (or CID font!) |
| 550 | # 1: Expert |
| 551 | # 2: ExpertSubset |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 552 | charset = None # |
| 553 | return charset |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 554 | def write(self, parent, value): |
| 555 | return 0 # dummy value |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 556 | def xmlWrite(self, xmlWriter, name, value): |
| 557 | # XXX GlyphOrder needs to be stored *somewhere*, but not here... |
| 558 | xmlWriter.simpletag("charset", value=value) |
| 559 | xmlWriter.newline() |
| 560 | |
| 561 | |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 562 | class CharsetCompiler: |
| 563 | |
| 564 | def __init__(self, strings, charset, parent): |
| 565 | assert charset[0] == '.notdef' |
| 566 | format = 0 # XXX! |
| 567 | data = [packCard8(format)] |
| 568 | for name in charset[1:]: |
| 569 | data.append(packCard16(strings.getSID(name))) |
| 570 | self.data = "".join(data) |
| 571 | self.parent = parent |
| 572 | |
| 573 | def setPos(self, pos): |
| 574 | self.parent.rawDict["charset"] = pos |
| 575 | |
| 576 | def getDataLength(self): |
| 577 | return len(self.data) |
| 578 | |
| 579 | def toFile(self, file): |
| 580 | file.write(self.data) |
| 581 | |
| 582 | |
| 583 | def parseCharset0(numGlyphs, file, strings): |
| 584 | charset = [".notdef"] |
| 585 | for i in range(numGlyphs - 1): |
| 586 | SID = readCard16(file) |
| 587 | charset.append(strings[SID]) |
| 588 | return charset |
| 589 | |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 590 | def parseCharset(numGlyphs, file, strings, isCID, format): |
| 591 | charset = ['.notdef'] |
| 592 | count = 1 |
| 593 | if format == 1: |
jvr | a2ad544 | 2002-05-17 18:36:07 +0000 | [diff] [blame] | 594 | nLeftFunc = readCard8 |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 595 | else: |
jvr | a2ad544 | 2002-05-17 18:36:07 +0000 | [diff] [blame] | 596 | nLeftFunc = readCard16 |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 597 | while count < numGlyphs: |
jvr | a2ad544 | 2002-05-17 18:36:07 +0000 | [diff] [blame] | 598 | first = readCard16(file) |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 599 | nLeft = nLeftFunc(file) |
| 600 | if isCID: |
| 601 | for CID in range(first, first+nLeft+1): |
| 602 | charset.append(CID) |
jvr | 1890b95 | 2002-05-15 07:41:30 +0000 | [diff] [blame] | 603 | else: |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 604 | for SID in range(first, first+nLeft+1): |
| 605 | charset.append(strings[SID]) |
| 606 | count = count + nLeft + 1 |
| 607 | return charset |
| 608 | |
| 609 | |
jvr | 7ce02ea | 2002-05-17 20:04:05 +0000 | [diff] [blame] | 610 | class FDArrayConverter(BaseConverter): |
jvr | a2ad544 | 2002-05-17 18:36:07 +0000 | [diff] [blame] | 611 | def read(self, parent, value): |
| 612 | file = parent.file |
| 613 | file.seek(value) |
| 614 | fdArray = TopDictIndex(file) |
| 615 | fdArray.strings = parent.strings |
| 616 | fdArray.GlobalSubrs = parent.GlobalSubrs |
| 617 | return fdArray |
| 618 | |
| 619 | |
| 620 | class FDSelectConverter: |
| 621 | def read(self, parent, value): |
| 622 | file = parent.file |
| 623 | file.seek(value) |
| 624 | format = readCard8(file) |
| 625 | numGlyphs = parent.numGlyphs |
| 626 | if format == 0: |
| 627 | from array import array |
| 628 | fdSelect = array("B", file.read(numGlyphs)).tolist() |
| 629 | elif format == 3: |
| 630 | fdSelect = [None] * numGlyphs |
| 631 | nRanges = readCard16(file) |
| 632 | prev = None |
| 633 | for i in range(nRanges): |
| 634 | first = readCard16(file) |
| 635 | if prev is not None: |
| 636 | for glyphID in range(prev, first): |
| 637 | fdSelect[glyphID] = fd |
| 638 | prev = first |
| 639 | fd = readCard8(file) |
| 640 | if prev is not None: |
| 641 | first = readCard16(file) |
| 642 | for glyphID in range(prev, first): |
| 643 | fdSelect[glyphID] = fd |
| 644 | else: |
| 645 | assert 0, "unsupported FDSelect format: %s" % format |
| 646 | return fdSelect |
| 647 | def xmlWrite(self, xmlWriter, name, value): |
| 648 | pass |
| 649 | |
| 650 | |
jvr | 7ce02ea | 2002-05-17 20:04:05 +0000 | [diff] [blame] | 651 | class ROSConverter(BaseConverter): |
jvr | 155aa75 | 2002-05-17 19:58:49 +0000 | [diff] [blame] | 652 | def xmlWrite(self, xmlWriter, name, value): |
| 653 | registry, order, supplement = value |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 654 | xmlWriter.simpletag(name, [('Registry', registry), ('Order', order), |
| 655 | ('Supplement', supplement)]) |
jvr | 4afb257 | 2002-05-18 20:07:01 +0000 | [diff] [blame] | 656 | xmlWriter.newline() |
jvr | 155aa75 | 2002-05-17 19:58:49 +0000 | [diff] [blame] | 657 | |
| 658 | |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 659 | topDictOperators = [ |
| 660 | # opcode name argument type default converter |
jvr | 155aa75 | 2002-05-17 19:58:49 +0000 | [diff] [blame] | 661 | ((12, 30), 'ROS', ('SID','SID','number'), None, ROSConverter()), |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 662 | ((12, 20), 'SyntheticBase', 'number', None, None), |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 663 | (0, 'version', 'SID', None, None), |
| 664 | (1, 'Notice', 'SID', None, None), |
| 665 | ((12, 0), 'Copyright', 'SID', None, None), |
| 666 | (2, 'FullName', 'SID', None, None), |
jvr | 155aa75 | 2002-05-17 19:58:49 +0000 | [diff] [blame] | 667 | ((12, 38), 'FontName', 'SID', None, None), |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 668 | (3, 'FamilyName', 'SID', None, None), |
| 669 | (4, 'Weight', 'SID', None, None), |
| 670 | ((12, 1), 'isFixedPitch', 'number', 0, None), |
| 671 | ((12, 2), 'ItalicAngle', 'number', 0, None), |
| 672 | ((12, 3), 'UnderlinePosition', 'number', None, None), |
| 673 | ((12, 4), 'UnderlineThickness', 'number', 50, None), |
| 674 | ((12, 5), 'PaintType', 'number', 0, None), |
| 675 | ((12, 6), 'CharstringType', 'number', 2, None), |
| 676 | ((12, 7), 'FontMatrix', 'array', [0.001,0,0,0.001,0,0], None), |
| 677 | (13, 'UniqueID', 'number', None, None), |
| 678 | (5, 'FontBBox', 'array', [0,0,0,0], None), |
| 679 | ((12, 8), 'StrokeWidth', 'number', 0, None), |
| 680 | (14, 'XUID', 'array', None, None), |
| 681 | (15, 'charset', 'number', 0, CharsetConverter()), |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 682 | ((12, 21), 'PostScript', 'SID', None, None), |
| 683 | ((12, 22), 'BaseFontName', 'SID', None, None), |
| 684 | ((12, 23), 'BaseFontBlend', 'delta', None, None), |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 685 | ((12, 31), 'CIDFontVersion', 'number', 0, None), |
| 686 | ((12, 32), 'CIDFontRevision', 'number', 0, None), |
| 687 | ((12, 33), 'CIDFontType', 'number', 0, None), |
| 688 | ((12, 34), 'CIDCount', 'number', 8720, None), |
| 689 | ((12, 35), 'UIDBase', 'number', None, None), |
jvr | 155aa75 | 2002-05-17 19:58:49 +0000 | [diff] [blame] | 690 | (16, 'Encoding', 'number', 0, None), # XXX |
jvr | a2ad544 | 2002-05-17 18:36:07 +0000 | [diff] [blame] | 691 | ((12, 36), 'FDArray', 'number', None, FDArrayConverter()), |
| 692 | ((12, 37), 'FDSelect', 'number', None, FDSelectConverter()), |
jvr | 155aa75 | 2002-05-17 19:58:49 +0000 | [diff] [blame] | 693 | (18, 'Private', ('number','number'), None, PrivateDictConverter()), |
| 694 | (17, 'CharStrings', 'number', None, CharStringsConverter()), |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 695 | ] |
| 696 | |
| 697 | privateDictOperators = [ |
| 698 | # opcode name argument type default converter |
| 699 | (6, 'BlueValues', 'delta', None, None), |
| 700 | (7, 'OtherBlues', 'delta', None, None), |
| 701 | (8, 'FamilyBlues', 'delta', None, None), |
| 702 | (9, 'FamilyOtherBlues', 'delta', None, None), |
| 703 | ((12, 9), 'BlueScale', 'number', 0.039625, None), |
| 704 | ((12, 10), 'BlueShift', 'number', 7, None), |
| 705 | ((12, 11), 'BlueFuzz', 'number', 1, None), |
| 706 | (10, 'StdHW', 'number', None, None), |
| 707 | (11, 'StdVW', 'number', None, None), |
| 708 | ((12, 12), 'StemSnapH', 'delta', None, None), |
| 709 | ((12, 13), 'StemSnapV', 'delta', None, None), |
| 710 | ((12, 14), 'ForceBold', 'number', 0, None), |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 711 | ((12, 15), 'ForceBoldThreshold', 'number', None, None), # deprecated |
| 712 | ((12, 16), 'lenIV', 'number', None, None), # deprecated |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 713 | ((12, 17), 'LanguageGroup', 'number', 0, None), |
| 714 | ((12, 18), 'ExpansionFactor', 'number', 0.06, None), |
| 715 | ((12, 19), 'initialRandomSeed', 'number', 0, None), |
| 716 | (20, 'defaultWidthX', 'number', 0, None), |
| 717 | (21, 'nominalWidthX', 'number', 0, None), |
| 718 | (19, 'Subrs', 'number', None, SubrsConverter()), |
| 719 | ] |
| 720 | |
| 721 | |
| 722 | class TopDictDecompiler(psCharStrings.DictDecompiler): |
| 723 | operators = buildOperatorDict(topDictOperators) |
| 724 | |
| 725 | |
| 726 | class PrivateDictDecompiler(psCharStrings.DictDecompiler): |
| 727 | operators = buildOperatorDict(privateDictOperators) |
| 728 | |
| 729 | |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 730 | class DictCompiler: |
| 731 | |
| 732 | def __init__(self, dictObj, strings, parent): |
| 733 | assert isinstance(strings, IndexedStrings) |
| 734 | self.dictObj = dictObj |
| 735 | self.strings = strings |
| 736 | self.parent = parent |
| 737 | rawDict = {} |
| 738 | for name in dictObj.order: |
| 739 | value = getattr(dictObj, name, None) |
| 740 | if value is None: |
| 741 | continue |
| 742 | conv = dictObj.converters[name] |
| 743 | if conv: |
| 744 | value = conv.write(dictObj, value) |
| 745 | if value == dictObj.defaults.get(name): |
| 746 | continue |
| 747 | rawDict[name] = value |
| 748 | self.rawDict = rawDict |
| 749 | |
| 750 | def setPos(self, pos): |
| 751 | pass |
| 752 | |
| 753 | def getDataLength(self): |
| 754 | return len(self.compile()) |
| 755 | |
| 756 | def compile(self): |
| 757 | rawDict = self.rawDict |
| 758 | data = [] |
| 759 | for name in self.dictObj.order: |
| 760 | value = rawDict.get(name) |
| 761 | if value is None: |
| 762 | continue |
| 763 | op, argType = self.opcodes[name] |
| 764 | if type(argType) == TupleType: |
| 765 | l = len(argType) |
| 766 | assert len(value) == l, "value doesn't match arg type" |
| 767 | for i in range(l): |
| 768 | arg = argType[l - i - 1] |
| 769 | v = value[i] |
| 770 | arghandler = getattr(self, "arg_" + arg) |
| 771 | data.append(arghandler(v)) |
| 772 | else: |
| 773 | arghandler = getattr(self, "arg_" + argType) |
| 774 | data.append(arghandler(value)) |
| 775 | data.append(op) |
| 776 | return "".join(data) |
| 777 | |
| 778 | def toFile(self, file): |
| 779 | file.write(self.compile()) |
| 780 | |
| 781 | def arg_number(self, num): |
| 782 | return encodeNumber(num) |
| 783 | def arg_SID(self, s): |
| 784 | return psCharStrings.encodeIntCFF(self.strings.getSID(s)) |
| 785 | def arg_array(self, value): |
| 786 | data = [] |
| 787 | for num in value: |
| 788 | data.append(encodeNumber(num)) |
| 789 | return "".join(data) |
| 790 | def arg_delta(self, value): |
| 791 | out = [] |
| 792 | last = 0 |
| 793 | for v in value: |
| 794 | out.append(v - last) |
| 795 | last = v |
| 796 | data = [] |
| 797 | for num in out: |
| 798 | data.append(encodeNumber(num)) |
| 799 | return "".join(data) |
| 800 | |
| 801 | |
| 802 | def encodeNumber(num): |
| 803 | if type(num) == FloatType: |
| 804 | return psCharStrings.encodeFloat(num) |
| 805 | else: |
| 806 | return psCharStrings.encodeIntCFF(num) |
| 807 | |
| 808 | |
| 809 | class TopDictCompiler(DictCompiler): |
| 810 | |
| 811 | opcodes = buildOpcodeDict(topDictOperators) |
| 812 | |
| 813 | def getChildren(self, strings): |
| 814 | children = [] |
| 815 | if hasattr(self.dictObj, "charset"): |
| 816 | children.append(CharsetCompiler(strings, self.dictObj.charset, self)) |
| 817 | if hasattr(self.dictObj, "CharStrings"): |
| 818 | items = [] |
| 819 | charStrings = self.dictObj.CharStrings |
| 820 | for name in self.dictObj.charset: |
| 821 | items.append(charStrings[name]) |
| 822 | charStringsComp = CharStringsCompiler(items, strings, self) |
| 823 | children.append(charStringsComp) |
| 824 | if hasattr(self.dictObj, "Private"): |
| 825 | privComp = self.dictObj.Private.getCompiler(strings, self) |
| 826 | children.append(privComp) |
| 827 | children.extend(privComp.getChildren(strings)) |
| 828 | return children |
| 829 | |
| 830 | |
| 831 | class PrivateDictCompiler(DictCompiler): |
| 832 | |
| 833 | opcodes = buildOpcodeDict(privateDictOperators) |
| 834 | |
| 835 | def setPos(self, pos): |
| 836 | size = len(self.compile()) |
| 837 | self.parent.rawDict["Private"] = size, pos |
| 838 | self.pos = pos |
| 839 | |
| 840 | def getChildren(self, strings): |
| 841 | children = [] |
| 842 | if hasattr(self.dictObj, "Subrs"): |
| 843 | children.append(self.dictObj.Subrs.getCompiler(strings, self)) |
| 844 | return children |
| 845 | |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 846 | |
| 847 | class BaseDict: |
| 848 | |
| 849 | def __init__(self, strings, file, offset): |
| 850 | self.rawDict = {} |
jvr | 767102e | 2002-05-17 07:06:32 +0000 | [diff] [blame] | 851 | if DEBUG: |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 852 | print "loading %s at %s" % (self.__class__.__name__, offset) |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 853 | self.file = file |
| 854 | self.offset = offset |
| 855 | self.strings = strings |
jvr | 155aa75 | 2002-05-17 19:58:49 +0000 | [diff] [blame] | 856 | self.skipNames = [] |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 857 | |
| 858 | def decompile(self, data): |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 859 | if DEBUG: |
| 860 | print " length %s is %s" % (self.__class__.__name__, len(data)) |
| 861 | dec = self.decompilerClass(self.strings) |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 862 | dec.decompile(data) |
| 863 | self.rawDict = dec.getDict() |
| 864 | self.postDecompile() |
| 865 | |
| 866 | def postDecompile(self): |
| 867 | pass |
| 868 | |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 869 | def getCompiler(self, strings, parent): |
| 870 | return self.compilerClass(self, strings, parent) |
| 871 | |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 872 | def __getattr__(self, name): |
| 873 | value = self.rawDict.get(name) |
| 874 | if value is None: |
| 875 | value = self.defaults.get(name) |
| 876 | if value is None: |
| 877 | raise AttributeError, name |
| 878 | conv = self.converters[name] |
| 879 | if conv is not None: |
| 880 | value = conv.read(self, value) |
| 881 | setattr(self, name, value) |
| 882 | return value |
| 883 | |
| 884 | def toXML(self, xmlWriter, progress): |
| 885 | for name in self.order: |
jvr | 155aa75 | 2002-05-17 19:58:49 +0000 | [diff] [blame] | 886 | if name in self.skipNames: |
| 887 | continue |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 888 | value = getattr(self, name, None) |
| 889 | if value is None: |
| 890 | continue |
| 891 | conv = self.converters.get(name) |
| 892 | if conv is not None: |
| 893 | conv.xmlWrite(xmlWriter, name, value) |
| 894 | else: |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 895 | if isinstance(value, ListType): |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 896 | value = " ".join(map(str, value)) |
| 897 | xmlWriter.simpletag(name, value=value) |
| 898 | xmlWriter.newline() |
| 899 | |
| 900 | |
| 901 | class TopDict(BaseDict): |
| 902 | |
| 903 | defaults = buildDefaults(topDictOperators) |
| 904 | converters = buildConverters(topDictOperators) |
| 905 | order = buildOrder(topDictOperators) |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 906 | decompilerClass = TopDictDecompiler |
| 907 | compilerClass = TopDictCompiler |
Just | 7842e56 | 1999-12-16 21:34:53 +0000 | [diff] [blame] | 908 | |
jvr | 016ca76 | 2002-05-16 18:38:03 +0000 | [diff] [blame] | 909 | def __init__(self, strings, file, offset, GlobalSubrs): |
| 910 | BaseDict.__init__(self, strings, file, offset) |
| 911 | self.GlobalSubrs = GlobalSubrs |
| 912 | |
Just | 7842e56 | 1999-12-16 21:34:53 +0000 | [diff] [blame] | 913 | def getGlyphOrder(self): |
| 914 | return self.charset |
| 915 | |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 916 | def postDecompile(self): |
| 917 | offset = self.rawDict.get("CharStrings") |
| 918 | if offset is None: |
| 919 | return |
| 920 | # get the number of glyphs beforehand. |
| 921 | self.file.seek(offset) |
jvr | a2ad544 | 2002-05-17 18:36:07 +0000 | [diff] [blame] | 922 | self.numGlyphs = readCard16(self.file) |
Just | 7842e56 | 1999-12-16 21:34:53 +0000 | [diff] [blame] | 923 | |
jvr | 016ca76 | 2002-05-16 18:38:03 +0000 | [diff] [blame] | 924 | def toXML(self, xmlWriter, progress): |
jvr | 155aa75 | 2002-05-17 19:58:49 +0000 | [diff] [blame] | 925 | if hasattr(self, "CharStrings"): |
| 926 | self.decompileAllCharStrings() |
| 927 | if not hasattr(self, "ROS") or not hasattr(self, "CharStrings"): |
| 928 | # these values have default values, but I only want them to show up |
| 929 | # in CID fonts. |
| 930 | self.skipNames = ['CIDFontVersion', 'CIDFontRevision', 'CIDFontType', |
| 931 | 'CIDCount'] |
jvr | 016ca76 | 2002-05-16 18:38:03 +0000 | [diff] [blame] | 932 | BaseDict.toXML(self, xmlWriter, progress) |
jvr | 767102e | 2002-05-17 07:06:32 +0000 | [diff] [blame] | 933 | |
Just | 7842e56 | 1999-12-16 21:34:53 +0000 | [diff] [blame] | 934 | def decompileAllCharStrings(self): |
jvr | a2ad544 | 2002-05-17 18:36:07 +0000 | [diff] [blame] | 935 | for charString in self.CharStrings.values(): |
| 936 | charString.decompile() |
Just | 7842e56 | 1999-12-16 21:34:53 +0000 | [diff] [blame] | 937 | |
| 938 | |
jvr | 4756b3a | 2002-05-16 18:17:32 +0000 | [diff] [blame] | 939 | class PrivateDict(BaseDict): |
| 940 | defaults = buildDefaults(privateDictOperators) |
| 941 | converters = buildConverters(privateDictOperators) |
| 942 | order = buildOrder(privateDictOperators) |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 943 | decompilerClass = PrivateDictDecompiler |
| 944 | compilerClass = PrivateDictCompiler |
Just | 7842e56 | 1999-12-16 21:34:53 +0000 | [diff] [blame] | 945 | |
| 946 | |
jvr | e327558 | 2002-05-14 12:22:03 +0000 | [diff] [blame] | 947 | class IndexedStrings: |
| 948 | |
jvr | 767102e | 2002-05-17 07:06:32 +0000 | [diff] [blame] | 949 | """SID -> string mapping.""" |
| 950 | |
| 951 | def __init__(self, file=None): |
| 952 | if file is None: |
jvr | e327558 | 2002-05-14 12:22:03 +0000 | [diff] [blame] | 953 | strings = [] |
jvr | 767102e | 2002-05-17 07:06:32 +0000 | [diff] [blame] | 954 | else: |
| 955 | strings = list(Index(file, "IndexedStrings")) |
jvr | e327558 | 2002-05-14 12:22:03 +0000 | [diff] [blame] | 956 | self.strings = strings |
| 957 | |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 958 | def getCompiler(self): |
| 959 | return IndexedStringsCompiler(self, None, None) |
| 960 | |
| 961 | def __len__(self): |
| 962 | return len(self.strings) |
| 963 | |
jvr | e327558 | 2002-05-14 12:22:03 +0000 | [diff] [blame] | 964 | def __getitem__(self, SID): |
| 965 | if SID < cffStandardStringCount: |
| 966 | return cffStandardStrings[SID] |
| 967 | else: |
| 968 | return self.strings[SID - cffStandardStringCount] |
| 969 | |
| 970 | def getSID(self, s): |
| 971 | if not hasattr(self, "stringMapping"): |
| 972 | self.buildStringMapping() |
| 973 | if cffStandardStringMapping.has_key(s): |
| 974 | SID = cffStandardStringMapping[s] |
jvr | f2cf9c5 | 2002-05-23 21:50:36 +0000 | [diff] [blame^] | 975 | elif self.stringMapping.has_key(s): |
jvr | e327558 | 2002-05-14 12:22:03 +0000 | [diff] [blame] | 976 | SID = self.stringMapping[s] |
| 977 | else: |
| 978 | SID = len(self.strings) + cffStandardStringCount |
| 979 | self.strings.append(s) |
| 980 | self.stringMapping[s] = SID |
| 981 | return SID |
| 982 | |
| 983 | def getStrings(self): |
| 984 | return self.strings |
| 985 | |
| 986 | def buildStringMapping(self): |
| 987 | self.stringMapping = {} |
| 988 | for index in range(len(self.strings)): |
| 989 | self.stringMapping[self.strings[index]] = index + cffStandardStringCount |
| 990 | |
| 991 | |
Just | 7842e56 | 1999-12-16 21:34:53 +0000 | [diff] [blame] | 992 | # The 391 Standard Strings as used in the CFF format. |
| 993 | # from Adobe Technical None #5176, version 1.0, 18 March 1998 |
| 994 | |
| 995 | cffStandardStrings = ['.notdef', 'space', 'exclam', 'quotedbl', 'numbersign', |
| 996 | 'dollar', 'percent', 'ampersand', 'quoteright', 'parenleft', 'parenright', |
| 997 | 'asterisk', 'plus', 'comma', 'hyphen', 'period', 'slash', 'zero', 'one', |
| 998 | 'two', 'three', 'four', 'five', 'six', 'seven', 'eight', 'nine', 'colon', |
| 999 | 'semicolon', 'less', 'equal', 'greater', 'question', 'at', 'A', 'B', 'C', |
| 1000 | 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', |
| 1001 | 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'bracketleft', 'backslash', |
| 1002 | 'bracketright', 'asciicircum', 'underscore', 'quoteleft', 'a', 'b', 'c', |
| 1003 | 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', |
| 1004 | 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 'braceleft', 'bar', 'braceright', |
| 1005 | 'asciitilde', 'exclamdown', 'cent', 'sterling', 'fraction', 'yen', 'florin', |
| 1006 | 'section', 'currency', 'quotesingle', 'quotedblleft', 'guillemotleft', |
| 1007 | 'guilsinglleft', 'guilsinglright', 'fi', 'fl', 'endash', 'dagger', |
| 1008 | 'daggerdbl', 'periodcentered', 'paragraph', 'bullet', 'quotesinglbase', |
| 1009 | 'quotedblbase', 'quotedblright', 'guillemotright', 'ellipsis', 'perthousand', |
| 1010 | 'questiondown', 'grave', 'acute', 'circumflex', 'tilde', 'macron', 'breve', |
| 1011 | 'dotaccent', 'dieresis', 'ring', 'cedilla', 'hungarumlaut', 'ogonek', 'caron', |
| 1012 | 'emdash', 'AE', 'ordfeminine', 'Lslash', 'Oslash', 'OE', 'ordmasculine', 'ae', |
| 1013 | 'dotlessi', 'lslash', 'oslash', 'oe', 'germandbls', 'onesuperior', |
| 1014 | 'logicalnot', 'mu', 'trademark', 'Eth', 'onehalf', 'plusminus', 'Thorn', |
| 1015 | 'onequarter', 'divide', 'brokenbar', 'degree', 'thorn', 'threequarters', |
| 1016 | 'twosuperior', 'registered', 'minus', 'eth', 'multiply', 'threesuperior', |
| 1017 | 'copyright', 'Aacute', 'Acircumflex', 'Adieresis', 'Agrave', 'Aring', |
| 1018 | 'Atilde', 'Ccedilla', 'Eacute', 'Ecircumflex', 'Edieresis', 'Egrave', |
| 1019 | 'Iacute', 'Icircumflex', 'Idieresis', 'Igrave', 'Ntilde', 'Oacute', |
| 1020 | 'Ocircumflex', 'Odieresis', 'Ograve', 'Otilde', 'Scaron', 'Uacute', |
| 1021 | 'Ucircumflex', 'Udieresis', 'Ugrave', 'Yacute', 'Ydieresis', 'Zcaron', |
| 1022 | 'aacute', 'acircumflex', 'adieresis', 'agrave', 'aring', 'atilde', 'ccedilla', |
| 1023 | 'eacute', 'ecircumflex', 'edieresis', 'egrave', 'iacute', 'icircumflex', |
| 1024 | 'idieresis', 'igrave', 'ntilde', 'oacute', 'ocircumflex', 'odieresis', |
| 1025 | 'ograve', 'otilde', 'scaron', 'uacute', 'ucircumflex', 'udieresis', 'ugrave', |
| 1026 | 'yacute', 'ydieresis', 'zcaron', 'exclamsmall', 'Hungarumlautsmall', |
| 1027 | 'dollaroldstyle', 'dollarsuperior', 'ampersandsmall', 'Acutesmall', |
| 1028 | 'parenleftsuperior', 'parenrightsuperior', 'twodotenleader', 'onedotenleader', |
| 1029 | 'zerooldstyle', 'oneoldstyle', 'twooldstyle', 'threeoldstyle', 'fouroldstyle', |
| 1030 | 'fiveoldstyle', 'sixoldstyle', 'sevenoldstyle', 'eightoldstyle', |
| 1031 | 'nineoldstyle', 'commasuperior', 'threequartersemdash', 'periodsuperior', |
| 1032 | 'questionsmall', 'asuperior', 'bsuperior', 'centsuperior', 'dsuperior', |
| 1033 | 'esuperior', 'isuperior', 'lsuperior', 'msuperior', 'nsuperior', 'osuperior', |
| 1034 | 'rsuperior', 'ssuperior', 'tsuperior', 'ff', 'ffi', 'ffl', 'parenleftinferior', |
| 1035 | 'parenrightinferior', 'Circumflexsmall', 'hyphensuperior', 'Gravesmall', |
| 1036 | 'Asmall', 'Bsmall', 'Csmall', 'Dsmall', 'Esmall', 'Fsmall', 'Gsmall', 'Hsmall', |
| 1037 | 'Ismall', 'Jsmall', 'Ksmall', 'Lsmall', 'Msmall', 'Nsmall', 'Osmall', 'Psmall', |
| 1038 | 'Qsmall', 'Rsmall', 'Ssmall', 'Tsmall', 'Usmall', 'Vsmall', 'Wsmall', 'Xsmall', |
| 1039 | 'Ysmall', 'Zsmall', 'colonmonetary', 'onefitted', 'rupiah', 'Tildesmall', |
| 1040 | 'exclamdownsmall', 'centoldstyle', 'Lslashsmall', 'Scaronsmall', 'Zcaronsmall', |
| 1041 | 'Dieresissmall', 'Brevesmall', 'Caronsmall', 'Dotaccentsmall', 'Macronsmall', |
| 1042 | 'figuredash', 'hypheninferior', 'Ogoneksmall', 'Ringsmall', 'Cedillasmall', |
| 1043 | 'questiondownsmall', 'oneeighth', 'threeeighths', 'fiveeighths', 'seveneighths', |
| 1044 | 'onethird', 'twothirds', 'zerosuperior', 'foursuperior', 'fivesuperior', |
| 1045 | 'sixsuperior', 'sevensuperior', 'eightsuperior', 'ninesuperior', 'zeroinferior', |
| 1046 | 'oneinferior', 'twoinferior', 'threeinferior', 'fourinferior', 'fiveinferior', |
| 1047 | 'sixinferior', 'seveninferior', 'eightinferior', 'nineinferior', 'centinferior', |
| 1048 | 'dollarinferior', 'periodinferior', 'commainferior', 'Agravesmall', |
| 1049 | 'Aacutesmall', 'Acircumflexsmall', 'Atildesmall', 'Adieresissmall', 'Aringsmall', |
| 1050 | 'AEsmall', 'Ccedillasmall', 'Egravesmall', 'Eacutesmall', 'Ecircumflexsmall', |
| 1051 | 'Edieresissmall', 'Igravesmall', 'Iacutesmall', 'Icircumflexsmall', |
| 1052 | 'Idieresissmall', 'Ethsmall', 'Ntildesmall', 'Ogravesmall', 'Oacutesmall', |
| 1053 | 'Ocircumflexsmall', 'Otildesmall', 'Odieresissmall', 'OEsmall', 'Oslashsmall', |
| 1054 | 'Ugravesmall', 'Uacutesmall', 'Ucircumflexsmall', 'Udieresissmall', |
| 1055 | 'Yacutesmall', 'Thornsmall', 'Ydieresissmall', '001.000', '001.001', '001.002', |
| 1056 | '001.003', 'Black', 'Bold', 'Book', 'Light', 'Medium', 'Regular', 'Roman', |
| 1057 | 'Semibold' |
| 1058 | ] |
| 1059 | |
| 1060 | cffStandardStringCount = 391 |
| 1061 | assert len(cffStandardStrings) == cffStandardStringCount |
| 1062 | # build reverse mapping |
| 1063 | cffStandardStringMapping = {} |
| 1064 | for _i in range(cffStandardStringCount): |
| 1065 | cffStandardStringMapping[cffStandardStrings[_i]] = _i |
| 1066 | |