Selim Gurun | 30d4e1f | 2013-08-15 12:46:15 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2011 Google Inc. All Rights Reserved. |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include "sfntly/table/core/name_table.h" |
| 18 | |
| 19 | #include <stdio.h> |
| 20 | #include <string.h> |
| 21 | |
| 22 | #include <unicode/unistr.h> |
| 23 | |
| 24 | #include "sfntly/font.h" |
| 25 | #include "sfntly/port/exception_type.h" |
| 26 | |
| 27 | namespace sfntly { |
| 28 | /****************************************************************************** |
| 29 | * NameTable::NameEntryId class |
| 30 | ******************************************************************************/ |
| 31 | NameTable::NameEntryId::NameEntryId() |
| 32 | : platform_id_(0), |
| 33 | encoding_id_(0), |
| 34 | language_id_(0), |
| 35 | name_id_(0) { |
| 36 | } |
| 37 | |
| 38 | NameTable::NameEntryId::NameEntryId(int32_t platform_id, |
| 39 | int32_t encoding_id, |
| 40 | int32_t language_id, |
| 41 | int32_t name_id) |
| 42 | : platform_id_(platform_id), |
| 43 | encoding_id_(encoding_id), |
| 44 | language_id_(language_id), |
| 45 | name_id_(name_id) { |
| 46 | } |
| 47 | |
| 48 | NameTable::NameEntryId::NameEntryId(const NameTable::NameEntryId& rhs) { |
| 49 | *this = rhs; |
| 50 | } |
| 51 | |
| 52 | const NameTable::NameEntryId& |
| 53 | NameTable::NameEntryId::operator=(const NameTable::NameEntryId& rhs) const { |
| 54 | platform_id_ = rhs.platform_id_; |
| 55 | encoding_id_ = rhs.encoding_id_; |
| 56 | language_id_ = rhs.language_id_; |
| 57 | name_id_ = rhs.name_id_; |
| 58 | return *this; |
| 59 | } |
| 60 | |
| 61 | bool NameTable::NameEntryId::operator==(const NameEntryId& rhs) const { |
| 62 | return platform_id_ == rhs.platform_id_ && |
| 63 | encoding_id_ == rhs.encoding_id_ && |
| 64 | language_id_ == rhs.language_id_ && |
| 65 | name_id_ == rhs.name_id_; |
| 66 | } |
| 67 | |
| 68 | bool NameTable::NameEntryId::operator<(const NameEntryId& rhs) const { |
| 69 | if (platform_id_ != rhs.platform_id_) return platform_id_ < rhs.platform_id_; |
| 70 | if (encoding_id_ != rhs.encoding_id_) return encoding_id_ < rhs.encoding_id_; |
| 71 | if (language_id_ != rhs.language_id_) return language_id_ < rhs.language_id_; |
| 72 | return name_id_ < rhs.name_id_; |
| 73 | } |
| 74 | |
| 75 | /****************************************************************************** |
| 76 | * NameTable::NameEntry class |
| 77 | ******************************************************************************/ |
| 78 | NameTable::NameEntry::NameEntry() { |
| 79 | Init(0, 0, 0, 0, NULL); |
| 80 | } |
| 81 | |
| 82 | NameTable::NameEntry::NameEntry(const NameEntryId& name_entry_id, |
| 83 | const ByteVector& name_bytes) { |
| 84 | Init(name_entry_id.platform_id(), |
| 85 | name_entry_id.encoding_id(), |
| 86 | name_entry_id.language_id(), |
| 87 | name_entry_id.name_id(), |
| 88 | &name_bytes); |
| 89 | } |
| 90 | |
| 91 | NameTable::NameEntry::NameEntry(int32_t platform_id, |
| 92 | int32_t encoding_id, |
| 93 | int32_t language_id, |
| 94 | int32_t name_id, |
| 95 | const ByteVector& name_bytes) { |
| 96 | Init(platform_id, encoding_id, language_id, name_id, &name_bytes); |
| 97 | } |
| 98 | |
| 99 | NameTable::NameEntry::~NameEntry() {} |
| 100 | |
| 101 | ByteVector* NameTable::NameEntry::NameAsBytes() { |
| 102 | return &name_bytes_; |
| 103 | } |
| 104 | |
| 105 | int32_t NameTable::NameEntry::NameBytesLength() { |
| 106 | return name_bytes_.size(); |
| 107 | } |
| 108 | |
| 109 | UChar* NameTable::NameEntry::Name() { |
| 110 | return NameTable::ConvertFromNameBytes(&name_bytes_, |
| 111 | platform_id(), |
| 112 | encoding_id()); |
| 113 | } |
| 114 | |
| 115 | bool NameTable::NameEntry::operator==(const NameEntry& rhs) const { |
| 116 | return (name_entry_id_ == rhs.name_entry_id_ && |
| 117 | name_bytes_ == rhs.name_bytes_); |
| 118 | } |
| 119 | |
| 120 | void NameTable::NameEntry::Init(int32_t platform_id, |
| 121 | int32_t encoding_id, |
| 122 | int32_t language_id, |
| 123 | int32_t name_id, |
| 124 | const ByteVector* name_bytes) { |
| 125 | name_entry_id_ = NameEntryId(platform_id, encoding_id, language_id, name_id); |
| 126 | if (name_bytes) { |
| 127 | name_bytes_ = *name_bytes; |
| 128 | } else { |
| 129 | name_bytes_.clear(); |
| 130 | } |
| 131 | } |
| 132 | |
| 133 | /****************************************************************************** |
| 134 | * NameTable::NameEntryBuilder class |
| 135 | ******************************************************************************/ |
| 136 | NameTable::NameEntryBuilder::NameEntryBuilder() { |
| 137 | Init(0, 0, 0, 0, NULL); |
| 138 | } |
| 139 | |
| 140 | NameTable::NameEntryBuilder::NameEntryBuilder(const NameEntryId& name_entry_id, |
| 141 | const ByteVector& name_bytes) { |
| 142 | Init(name_entry_id.platform_id(), |
| 143 | name_entry_id.encoding_id(), |
| 144 | name_entry_id.language_id(), |
| 145 | name_entry_id.name_id(), |
| 146 | &name_bytes); |
| 147 | } |
| 148 | |
| 149 | NameTable::NameEntryBuilder::NameEntryBuilder( |
| 150 | const NameEntryId& name_entry_id) { |
| 151 | Init(name_entry_id.platform_id(), |
| 152 | name_entry_id.encoding_id(), |
| 153 | name_entry_id.language_id(), |
| 154 | name_entry_id.name_id(), |
| 155 | NULL); |
| 156 | } |
| 157 | |
| 158 | NameTable::NameEntryBuilder::NameEntryBuilder(NameEntry* b) { |
| 159 | Init(b->platform_id(), |
| 160 | b->encoding_id(), |
| 161 | b->language_id(), |
| 162 | b->name_id(), |
| 163 | b->NameAsBytes()); |
| 164 | } |
| 165 | |
| 166 | NameTable::NameEntryBuilder::~NameEntryBuilder() {} |
| 167 | |
| 168 | void NameTable::NameEntryBuilder::SetName(const UChar* name) { |
| 169 | if (name == NULL) { |
| 170 | name_entry_->name_bytes_.clear(); |
| 171 | return; |
| 172 | } |
| 173 | NameTable::ConvertToNameBytes(name, |
| 174 | name_entry_->platform_id(), |
| 175 | name_entry_->encoding_id(), |
| 176 | &name_entry_->name_bytes_); |
| 177 | } |
| 178 | |
| 179 | void NameTable::NameEntryBuilder::SetName(const ByteVector& name_bytes) { |
| 180 | name_entry_->name_bytes_.clear(); |
| 181 | std::copy(name_bytes.begin(), |
| 182 | name_bytes.end(), |
| 183 | name_entry_->name_bytes_.begin()); |
| 184 | } |
| 185 | |
| 186 | void NameTable::NameEntryBuilder::SetName(const ByteVector& name_bytes, |
| 187 | int32_t offset, |
| 188 | int32_t length) { |
| 189 | name_entry_->name_bytes_.clear(); |
| 190 | std::copy(name_bytes.begin() + offset, |
| 191 | name_bytes.begin() + offset + length, |
| 192 | name_entry_->name_bytes_.begin()); |
| 193 | } |
| 194 | |
| 195 | void NameTable::NameEntryBuilder::Init(int32_t platform_id, |
| 196 | int32_t encoding_id, |
| 197 | int32_t language_id, |
| 198 | int32_t name_id, |
| 199 | const ByteVector* name_bytes) { |
| 200 | name_entry_ = new NameEntry(); |
| 201 | name_entry_->Init(platform_id, encoding_id, language_id, name_id, name_bytes); |
| 202 | } |
| 203 | |
| 204 | /****************************************************************************** |
| 205 | * NameTable::NameEntryFilterInPlace class (C++ port only) |
| 206 | ******************************************************************************/ |
| 207 | NameTable::NameEntryFilterInPlace::NameEntryFilterInPlace(int32_t platform_id, |
| 208 | int32_t encoding_id, |
| 209 | int32_t language_id, |
| 210 | int32_t name_id) |
| 211 | : platform_id_(platform_id), |
| 212 | encoding_id_(encoding_id), |
| 213 | language_id_(language_id), |
| 214 | name_id_(name_id) { |
| 215 | } |
| 216 | |
| 217 | bool NameTable::NameEntryFilterInPlace::Accept(int32_t platform_id, |
| 218 | int32_t encoding_id, |
| 219 | int32_t language_id, |
| 220 | int32_t name_id) { |
| 221 | return (platform_id_ == platform_id && |
| 222 | encoding_id_ == encoding_id && |
| 223 | language_id_ == language_id && |
| 224 | name_id_ == name_id); |
| 225 | } |
| 226 | |
| 227 | /****************************************************************************** |
| 228 | * NameTable::NameEntryIterator class |
| 229 | ******************************************************************************/ |
| 230 | NameTable::NameEntryIterator::NameEntryIterator(NameTable* table) |
| 231 | : RefIterator<NameEntry, NameTable>(table), |
| 232 | name_index_(0), |
| 233 | filter_(NULL) { |
| 234 | } |
| 235 | |
| 236 | NameTable::NameEntryIterator::NameEntryIterator(NameTable* table, |
| 237 | NameEntryFilter* filter) |
| 238 | : RefIterator<NameEntry, NameTable>(table), |
| 239 | name_index_(0), |
| 240 | filter_(filter) { |
| 241 | } |
| 242 | |
| 243 | bool NameTable::NameEntryIterator::HasNext() { |
| 244 | if (!filter_) { |
| 245 | if (name_index_ < container()->NameCount()) { |
| 246 | return true; |
| 247 | } |
| 248 | return false; |
| 249 | } |
| 250 | for (; name_index_ < container()->NameCount(); ++name_index_) { |
| 251 | if (filter_->Accept(container()->PlatformId(name_index_), |
| 252 | container()->EncodingId(name_index_), |
| 253 | container()->LanguageId(name_index_), |
| 254 | container()->NameId(name_index_))) { |
| 255 | return true; |
| 256 | } |
| 257 | } |
| 258 | return false; |
| 259 | } |
| 260 | |
| 261 | CALLER_ATTACH NameTable::NameEntry* NameTable::NameEntryIterator::Next() { |
| 262 | if (!HasNext()) |
| 263 | return NULL; |
| 264 | return container()->GetNameEntry(name_index_++); |
| 265 | } |
| 266 | |
| 267 | /****************************************************************************** |
| 268 | * NameTable::Builder class |
| 269 | ******************************************************************************/ |
| 270 | NameTable::Builder::Builder(Header* header, WritableFontData* data) |
| 271 | : SubTableContainerTable::Builder(header, data) { |
| 272 | } |
| 273 | |
| 274 | NameTable::Builder::Builder(Header* header, ReadableFontData* data) |
| 275 | : SubTableContainerTable::Builder(header, data) { |
| 276 | } |
| 277 | |
| 278 | CALLER_ATTACH NameTable::Builder* |
| 279 | NameTable::Builder::CreateBuilder(Header* header, |
| 280 | WritableFontData* data) { |
| 281 | Ptr<NameTable::Builder> builder; |
| 282 | builder = new NameTable::Builder(header, data); |
| 283 | return builder.Detach(); |
| 284 | } |
| 285 | |
| 286 | void NameTable::Builder::RevertNames() { |
| 287 | name_entry_map_.clear(); |
| 288 | set_model_changed(false); |
| 289 | } |
| 290 | |
| 291 | int32_t NameTable::Builder::BuilderCount() { |
| 292 | GetNameBuilders(); // Ensure name_entry_map_ is built. |
| 293 | return (int32_t)name_entry_map_.size(); |
| 294 | } |
| 295 | |
| 296 | bool NameTable::Builder::Has(int32_t platform_id, |
| 297 | int32_t encoding_id, |
| 298 | int32_t language_id, |
| 299 | int32_t name_id) { |
| 300 | NameEntryId probe(platform_id, encoding_id, language_id, name_id); |
| 301 | GetNameBuilders(); // Ensure name_entry_map_ is built. |
| 302 | return (name_entry_map_.find(probe) != name_entry_map_.end()); |
| 303 | } |
| 304 | |
| 305 | CALLER_ATTACH NameTable::NameEntryBuilder* |
| 306 | NameTable::Builder::NameBuilder(int32_t platform_id, |
| 307 | int32_t encoding_id, |
| 308 | int32_t language_id, |
| 309 | int32_t name_id) { |
| 310 | NameEntryId probe(platform_id, encoding_id, language_id, name_id); |
| 311 | NameEntryBuilderMap builders; |
| 312 | GetNameBuilders(); // Ensure name_entry_map_ is built. |
| 313 | if (name_entry_map_.find(probe) != name_entry_map_.end()) { |
| 314 | return name_entry_map_[probe]; |
| 315 | } |
| 316 | NameEntryBuilderPtr builder = new NameEntryBuilder(probe); |
| 317 | name_entry_map_[probe] = builder; |
| 318 | return builder.Detach(); |
| 319 | } |
| 320 | |
| 321 | bool NameTable::Builder::Remove(int32_t platform_id, |
| 322 | int32_t encoding_id, |
| 323 | int32_t language_id, |
| 324 | int32_t name_id) { |
| 325 | NameEntryId probe(platform_id, encoding_id, language_id, name_id); |
| 326 | GetNameBuilders(); // Ensure name_entry_map_ is built. |
| 327 | NameEntryBuilderMap::iterator position = name_entry_map_.find(probe); |
| 328 | if (position != name_entry_map_.end()) { |
| 329 | name_entry_map_.erase(position); |
| 330 | return true; |
| 331 | } |
| 332 | return false; |
| 333 | } |
| 334 | |
| 335 | CALLER_ATTACH FontDataTable* |
| 336 | NameTable::Builder::SubBuildTable(ReadableFontData* data) { |
| 337 | FontDataTablePtr table = new NameTable(header(), data); |
| 338 | return table.Detach(); |
| 339 | } |
| 340 | |
| 341 | void NameTable::Builder::SubDataSet() { |
| 342 | name_entry_map_.clear(); |
| 343 | set_model_changed(false); |
| 344 | } |
| 345 | |
| 346 | int32_t NameTable::Builder::SubDataSizeToSerialize() { |
| 347 | if (name_entry_map_.empty()) { |
| 348 | return 0; |
| 349 | } |
| 350 | |
| 351 | int32_t size = NameTable::Offset::kNameRecordStart + |
| 352 | name_entry_map_.size() * NameTable::Offset::kNameRecordSize; |
| 353 | for (NameEntryBuilderMap::iterator b = name_entry_map_.begin(), |
| 354 | end = name_entry_map_.end(); |
| 355 | b != end; ++b) { |
| 356 | NameEntryBuilderPtr p = b->second; |
| 357 | NameEntry* entry = p->name_entry(); |
| 358 | size += entry->NameBytesLength(); |
| 359 | } |
| 360 | return size; |
| 361 | } |
| 362 | |
| 363 | bool NameTable::Builder::SubReadyToSerialize() { |
| 364 | return !name_entry_map_.empty(); |
| 365 | } |
| 366 | |
| 367 | int32_t NameTable::Builder::SubSerialize(WritableFontData* new_data) { |
| 368 | int32_t string_table_start_offset = |
| 369 | NameTable::Offset::kNameRecordStart + |
| 370 | name_entry_map_.size() * NameTable::Offset::kNameRecordSize; |
| 371 | |
| 372 | // Header |
| 373 | new_data->WriteUShort(NameTable::Offset::kFormat, 0); |
| 374 | new_data->WriteUShort(NameTable::Offset::kCount, name_entry_map_.size()); |
| 375 | new_data->WriteUShort(NameTable::Offset::kStringOffset, |
| 376 | string_table_start_offset); |
| 377 | int32_t name_record_offset = NameTable::Offset::kNameRecordStart; |
| 378 | int32_t string_offset = 0; |
| 379 | // Note: we offered operator< in NameEntryId, which will be used by std::less, |
| 380 | // and therefore our map will act like TreeMap in Java to provide |
| 381 | // sorted key set. |
| 382 | for (NameEntryBuilderMap::iterator b = name_entry_map_.begin(), |
| 383 | end = name_entry_map_.end(); |
| 384 | b != end; ++b) { |
| 385 | new_data->WriteUShort( |
| 386 | name_record_offset + NameTable::Offset::kNameRecordPlatformId, |
| 387 | b->first.platform_id()); |
| 388 | new_data->WriteUShort( |
| 389 | name_record_offset + NameTable::Offset::kNameRecordEncodingId, |
| 390 | b->first.encoding_id()); |
| 391 | new_data->WriteUShort( |
| 392 | name_record_offset + NameTable::Offset::kNameRecordLanguageId, |
| 393 | b->first.language_id()); |
| 394 | new_data->WriteUShort( |
| 395 | name_record_offset + NameTable::Offset::kNameRecordNameId, |
| 396 | b->first.name_id()); |
| 397 | NameEntry* builder_entry = b->second->name_entry(); |
| 398 | new_data->WriteUShort( |
| 399 | name_record_offset + NameTable::Offset::kNameRecordStringLength, |
| 400 | builder_entry->NameBytesLength()); |
| 401 | new_data->WriteUShort( |
| 402 | name_record_offset + NameTable::Offset::kNameRecordStringOffset, |
| 403 | string_offset); |
| 404 | name_record_offset += NameTable::Offset::kNameRecordSize; |
| 405 | string_offset += new_data->WriteBytes( |
| 406 | string_offset + string_table_start_offset, |
| 407 | builder_entry->NameAsBytes()); |
| 408 | } |
| 409 | |
| 410 | return string_offset + string_table_start_offset; |
| 411 | } |
| 412 | |
| 413 | void NameTable::Builder::Initialize(ReadableFontData* data) { |
| 414 | if (data) { |
| 415 | NameTablePtr table = new NameTable(header(), data); |
| 416 | Ptr<NameEntryIterator> name_iter; |
| 417 | name_iter.Attach(table->Iterator()); |
| 418 | while (name_iter->HasNext()) { |
| 419 | NameEntryPtr name_entry; |
| 420 | name_entry.Attach(name_iter->Next()); |
| 421 | NameEntryBuilderPtr name_entry_builder = new NameEntryBuilder(name_entry); |
| 422 | NameEntry* builder_entry = name_entry_builder->name_entry(); |
| 423 | NameEntryId probe = builder_entry->name_entry_id(); |
| 424 | name_entry_map_[probe] = name_entry_builder; |
| 425 | } |
| 426 | } |
| 427 | } |
| 428 | |
| 429 | NameTable::NameEntryBuilderMap* NameTable::Builder::GetNameBuilders() { |
| 430 | if (name_entry_map_.empty()) { |
| 431 | Initialize(InternalReadData()); |
| 432 | } |
| 433 | set_model_changed(); |
| 434 | return &name_entry_map_; |
| 435 | } |
| 436 | |
| 437 | /****************************************************************************** |
| 438 | * NameTable class |
| 439 | ******************************************************************************/ |
| 440 | NameTable::~NameTable() {} |
| 441 | |
| 442 | int32_t NameTable::Format() { |
| 443 | return data_->ReadUShort(Offset::kFormat); |
| 444 | } |
| 445 | |
| 446 | int32_t NameTable::NameCount() { |
| 447 | return data_->ReadUShort(Offset::kCount); |
| 448 | } |
| 449 | |
| 450 | int32_t NameTable::PlatformId(int32_t index) { |
| 451 | return data_->ReadUShort(Offset::kNameRecordPlatformId + |
| 452 | OffsetForNameRecord(index)); |
| 453 | } |
| 454 | |
| 455 | int32_t NameTable::EncodingId(int32_t index) { |
| 456 | return data_->ReadUShort(Offset::kNameRecordEncodingId + |
| 457 | OffsetForNameRecord(index)); |
| 458 | } |
| 459 | |
| 460 | int32_t NameTable::LanguageId(int32_t index) { |
| 461 | return data_->ReadUShort(Offset::kNameRecordLanguageId + |
| 462 | OffsetForNameRecord(index)); |
| 463 | } |
| 464 | |
| 465 | int32_t NameTable::NameId(int32_t index) { |
| 466 | return data_->ReadUShort(Offset::kNameRecordNameId + |
| 467 | OffsetForNameRecord(index)); |
| 468 | } |
| 469 | |
| 470 | void NameTable::NameAsBytes(int32_t index, ByteVector* b) { |
| 471 | assert(b); |
Selim Gurun | 30d4e1f | 2013-08-15 12:46:15 -0700 | [diff] [blame] | 472 | b->clear(); |
Colin Cross | 13a8243 | 2017-04-07 10:50:33 -0700 | [diff] [blame] | 473 | |
| 474 | int32_t length = NameLength(index); |
| 475 | if (length <= 0) |
| 476 | return; |
| 477 | |
Selim Gurun | 30d4e1f | 2013-08-15 12:46:15 -0700 | [diff] [blame] | 478 | b->resize(length); |
Colin Cross | 13a8243 | 2017-04-07 10:50:33 -0700 | [diff] [blame] | 479 | data_->ReadBytes(NameOffset(index), &((*b)[0]), 0, length); |
Selim Gurun | 30d4e1f | 2013-08-15 12:46:15 -0700 | [diff] [blame] | 480 | } |
| 481 | |
| 482 | void NameTable::NameAsBytes(int32_t platform_id, |
| 483 | int32_t encoding_id, |
| 484 | int32_t language_id, |
| 485 | int32_t name_id, |
| 486 | ByteVector* b) { |
| 487 | assert(b); |
| 488 | NameEntryPtr entry; |
| 489 | entry.Attach(GetNameEntry(platform_id, encoding_id, language_id, name_id)); |
| 490 | if (entry) { |
| 491 | ByteVector* name = entry->NameAsBytes(); |
| 492 | std::copy(name->begin(), name->end(), b->begin()); |
| 493 | } |
| 494 | } |
| 495 | |
| 496 | UChar* NameTable::Name(int32_t index) { |
| 497 | ByteVector b; |
| 498 | NameAsBytes(index, &b); |
| 499 | return ConvertFromNameBytes(&b, PlatformId(index), EncodingId(index)); |
| 500 | } |
| 501 | |
| 502 | UChar* NameTable::Name(int32_t platform_id, |
| 503 | int32_t encoding_id, |
| 504 | int32_t language_id, |
| 505 | int32_t name_id) { |
| 506 | NameEntryPtr entry; |
| 507 | entry.Attach(GetNameEntry(platform_id, encoding_id, language_id, name_id)); |
| 508 | if (entry) { |
| 509 | return entry->Name(); |
| 510 | } |
| 511 | return NULL; |
| 512 | } |
| 513 | |
| 514 | CALLER_ATTACH NameTable::NameEntry* NameTable::GetNameEntry(int32_t index) { |
| 515 | ByteVector b; |
| 516 | NameAsBytes(index, &b); |
| 517 | NameEntryPtr instance = new NameEntry(PlatformId(index), |
| 518 | EncodingId(index), |
| 519 | LanguageId(index), |
| 520 | NameId(index), b); |
| 521 | return instance.Detach(); |
| 522 | } |
| 523 | |
| 524 | CALLER_ATTACH NameTable::NameEntry* NameTable::GetNameEntry(int32_t platform_id, |
| 525 | int32_t encoding_id, |
| 526 | int32_t language_id, |
| 527 | int32_t name_id) { |
| 528 | NameTable::NameEntryFilterInPlace |
| 529 | filter(platform_id, encoding_id, language_id, name_id); |
| 530 | Ptr<NameTable::NameEntryIterator> name_entry_iter; |
| 531 | name_entry_iter.Attach(Iterator(&filter)); |
| 532 | NameEntryPtr result; |
| 533 | if (name_entry_iter->HasNext()) { |
| 534 | result = name_entry_iter->Next(); |
| 535 | } |
| 536 | return result; |
| 537 | } |
| 538 | |
| 539 | CALLER_ATTACH NameTable::NameEntryIterator* NameTable::Iterator() { |
| 540 | Ptr<NameEntryIterator> output = new NameTable::NameEntryIterator(this); |
| 541 | return output.Detach(); |
| 542 | } |
| 543 | |
| 544 | CALLER_ATTACH |
| 545 | NameTable::NameEntryIterator* NameTable::Iterator(NameEntryFilter* filter) { |
| 546 | Ptr<NameEntryIterator> output = |
| 547 | new NameTable::NameEntryIterator(this, filter); |
| 548 | return output.Detach(); |
| 549 | } |
| 550 | |
| 551 | NameTable::NameTable(Header* header, ReadableFontData* data) |
| 552 | : SubTableContainerTable(header, data) {} |
| 553 | |
| 554 | int32_t NameTable::StringOffset() { |
| 555 | return data_->ReadUShort(Offset::kStringOffset); |
| 556 | } |
| 557 | |
| 558 | int32_t NameTable::OffsetForNameRecord(int32_t index) { |
| 559 | return Offset::kNameRecordStart + index * Offset::kNameRecordSize; |
| 560 | } |
| 561 | |
| 562 | int32_t NameTable::NameLength(int32_t index) { |
| 563 | return data_->ReadUShort(Offset::kNameRecordStringLength + |
| 564 | OffsetForNameRecord(index)); |
| 565 | } |
| 566 | |
| 567 | int32_t NameTable::NameOffset(int32_t index) { |
| 568 | return data_->ReadUShort(Offset::kNameRecordStringOffset + |
| 569 | OffsetForNameRecord(index)) + StringOffset(); |
| 570 | } |
| 571 | |
| 572 | const char* NameTable::GetEncodingName(int32_t platform_id, |
| 573 | int32_t encoding_id) { |
| 574 | switch (platform_id) { |
| 575 | case PlatformId::kUnicode: |
| 576 | return "UTF-16BE"; |
| 577 | case PlatformId::kMacintosh: |
| 578 | switch (encoding_id) { |
| 579 | case MacintoshEncodingId::kRoman: |
| 580 | return "MacRoman"; |
| 581 | case MacintoshEncodingId::kJapanese: |
| 582 | return "Shift-JIS"; |
| 583 | case MacintoshEncodingId::kChineseTraditional: |
| 584 | return "Big5"; |
| 585 | case MacintoshEncodingId::kKorean: |
| 586 | return "EUC-KR"; |
| 587 | case MacintoshEncodingId::kArabic: |
| 588 | return "MacArabic"; |
| 589 | case MacintoshEncodingId::kHebrew: |
| 590 | return "MacHebrew"; |
| 591 | case MacintoshEncodingId::kGreek: |
| 592 | return "MacGreek"; |
| 593 | case MacintoshEncodingId::kRussian: |
| 594 | return "MacCyrillic"; |
| 595 | case MacintoshEncodingId::kRSymbol: |
| 596 | return "MacSymbol"; |
| 597 | case MacintoshEncodingId::kThai: |
| 598 | return "MacThai"; |
| 599 | case MacintoshEncodingId::kChineseSimplified: |
| 600 | return "EUC-CN"; |
| 601 | default: // Note: unknown/unconfirmed cases are not ported. |
| 602 | break; |
| 603 | } |
| 604 | break; |
| 605 | case PlatformId::kISO: |
| 606 | break; |
| 607 | case PlatformId::kWindows: |
| 608 | switch (encoding_id) { |
| 609 | case WindowsEncodingId::kSymbol: |
| 610 | case WindowsEncodingId::kUnicodeUCS2: |
| 611 | return "UTF-16BE"; |
| 612 | case WindowsEncodingId::kShiftJIS: |
| 613 | return "windows-933"; |
| 614 | case WindowsEncodingId::kPRC: |
| 615 | return "windows-936"; |
| 616 | case WindowsEncodingId::kBig5: |
| 617 | return "windows-950"; |
| 618 | case WindowsEncodingId::kWansung: |
| 619 | return "windows-949"; |
| 620 | case WindowsEncodingId::kJohab: |
| 621 | return "ms1361"; |
| 622 | case WindowsEncodingId::kUnicodeUCS4: |
| 623 | return "UCS-4"; |
| 624 | } |
| 625 | break; |
| 626 | case PlatformId::kCustom: |
| 627 | break; |
| 628 | default: |
| 629 | break; |
| 630 | } |
| 631 | return NULL; |
| 632 | } |
| 633 | |
| 634 | UConverter* NameTable::GetCharset(int32_t platform_id, int32_t encoding_id) { |
| 635 | UErrorCode error_code = U_ZERO_ERROR; |
| 636 | UConverter* conv = ucnv_open(GetEncodingName(platform_id, encoding_id), |
| 637 | &error_code); |
| 638 | if (U_SUCCESS(error_code)) { |
| 639 | return conv; |
| 640 | } |
| 641 | |
| 642 | if (conv) { |
| 643 | ucnv_close(conv); |
| 644 | } |
| 645 | return NULL; |
| 646 | } |
| 647 | |
| 648 | void NameTable::ConvertToNameBytes(const UChar* name, |
| 649 | int32_t platform_id, |
| 650 | int32_t encoding_id, |
| 651 | ByteVector* b) { |
| 652 | assert(b); |
| 653 | assert(name); |
| 654 | b->clear(); |
| 655 | UConverter* cs = GetCharset(platform_id, encoding_id); |
| 656 | if (cs == NULL) { |
| 657 | return; |
| 658 | } |
| 659 | |
| 660 | // Preflight to get buffer size. |
| 661 | UErrorCode error_code = U_ZERO_ERROR; |
| 662 | int32_t length = ucnv_fromUChars(cs, NULL, 0, name, -1, &error_code); |
| 663 | b->resize(length + 4); // The longest termination "\0" is 4 bytes. |
| 664 | memset(&((*b)[0]), 0, length + 4); |
| 665 | error_code = U_ZERO_ERROR; |
| 666 | ucnv_fromUChars(cs, |
| 667 | reinterpret_cast<char*>(&((*b)[0])), |
| 668 | length + 4, |
| 669 | name, |
| 670 | -1, |
| 671 | &error_code); |
| 672 | if (!U_SUCCESS(error_code)) { |
| 673 | b->clear(); |
| 674 | } |
| 675 | ucnv_close(cs); |
| 676 | } |
| 677 | |
| 678 | UChar* NameTable::ConvertFromNameBytes(ByteVector* name_bytes, |
| 679 | int32_t platform_id, |
| 680 | int32_t encoding_id) { |
| 681 | if (name_bytes == NULL || name_bytes->size() == 0) { |
| 682 | return NULL; |
| 683 | } |
| 684 | UConverter* cs = GetCharset(platform_id, encoding_id); |
| 685 | UErrorCode error_code = U_ZERO_ERROR; |
| 686 | if (cs == NULL) { |
| 687 | char buffer[11] = {0}; |
| 688 | #if defined (WIN32) |
| 689 | _itoa_s(platform_id, buffer, 16); |
| 690 | #else |
| 691 | snprintf(buffer, sizeof(buffer), "%x", platform_id); |
| 692 | #endif |
| 693 | UChar* result = new UChar[12]; |
| 694 | memset(result, 0, sizeof(UChar) * 12); |
| 695 | cs = ucnv_open("utf-8", &error_code); |
| 696 | if (U_SUCCESS(error_code)) { |
| 697 | ucnv_toUChars(cs, result, 12, buffer, 11, &error_code); |
| 698 | ucnv_close(cs); |
| 699 | if (U_SUCCESS(error_code)) { |
| 700 | return result; |
| 701 | } |
| 702 | } |
| 703 | delete[] result; |
| 704 | return NULL; |
| 705 | } |
| 706 | |
| 707 | // No preflight needed here, we will be bigger. |
| 708 | UChar* output_buffer = new UChar[name_bytes->size() + 1]; |
| 709 | memset(output_buffer, 0, sizeof(UChar) * (name_bytes->size() + 1)); |
| 710 | int32_t length = ucnv_toUChars(cs, |
| 711 | output_buffer, |
| 712 | name_bytes->size(), |
| 713 | reinterpret_cast<char*>(&((*name_bytes)[0])), |
| 714 | name_bytes->size(), |
| 715 | &error_code); |
| 716 | ucnv_close(cs); |
| 717 | if (length > 0) { |
| 718 | return output_buffer; |
| 719 | } |
| 720 | |
| 721 | delete[] output_buffer; |
| 722 | return NULL; |
| 723 | } |
| 724 | |
| 725 | } // namespace sfntly |