OpenCoverage

qplatformfontdatabase.cpp

Absolute File Name:

/home/qt/qt5_coco/qt5/qtbase/src/gui/text/qplatformfontdatabase.cpp

Source code

Switch to Preprocessed file

Line Source Count

1 /**************************************************************************** -

2 ** -

4 ** Contact: https://www.qt.io/licensing/ -

5 ** -

6 ** This file is part of the QtGui module of the Qt Toolkit. -

7 ** -

8 ** $QT_BEGIN_LICENSE:LGPL$ -

9 ** Commercial License Usage -

10 ** Licensees holding valid commercial Qt licenses may use this file in -

11 ** accordance with the commercial license agreement provided with the -

12 ** Software or, alternatively, in accordance with the terms contained in -

13 ** a written agreement between you and The Qt Company. For licensing terms -

14 ** and conditions see https://www.qt.io/terms-conditions. For further -

15 ** information use the contact form at https://www.qt.io/contact-us. -

16 ** -

17 ** GNU Lesser General Public License Usage -

18 ** Alternatively, this file may be used under the terms of the GNU Lesser -

19 ** General Public License version 3 as published by the Free Software -

20 ** Foundation and appearing in the file LICENSE.LGPL3 included in the -

21 ** packaging of this file. Please review the following information to -

22 ** ensure the GNU Lesser General Public License version 3 requirements -

23 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -

24 ** -

25 ** GNU General Public License Usage -

26 ** Alternatively, this file may be used under the terms of the GNU -

27 ** General Public License version 2.0 or (at your option) the GNU General -

28 ** Public license version 3 or any later version approved by the KDE Free -

29 ** Qt Foundation. The licenses are as published by the Free Software -

30 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -

31 ** included in the packaging of this file. Please review the following -

32 ** information to ensure the GNU General Public License requirements will -

33 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and -

34 ** https://www.gnu.org/licenses/gpl-3.0.html. -

35 ** -

36 ** $QT_END_LICENSE$ -

37 ** -

38 ****************************************************************************/ -

39 -

40 #include "qplatformfontdatabase.h" -

41 #include <QtGui/private/qfontengine_p.h> -

42 #include <QtGui/private/qfontengine_qpf2_p.h> -

43 #include <QtGui/QGuiApplication> -

44 #include <QtGui/QScreen> -

45 #include <qpa/qplatformscreen.h> -

46 #include <QtCore/QLibraryInfo> -

47 #include <QtCore/QDir> -

48 -

49 #include <algorithm> -

50 #include <iterator> -

51 -

52 QT_BEGIN_NAMESPACE -

53 -

54 void qt_registerFont(const QString &familyname, const QString &stylename, -

55 const QString &foundryname, int weight, -

56 QFont::Style style, int stretch, bool antialiased, -

57 bool scalable, int pixelSize, bool fixedPitch, -

58 const QSupportedWritingSystems &writingSystems, void *hanlde); -

59 -

60 void qt_registerFontFamily(const QString &familyName); -

61 void qt_registerAliasToFontFamily(const QString &familyName, const QString &alias); -

62 -

63 /*! -

64 \fn void QPlatformFontDatabase::registerQPF2Font(const QByteArray &dataArray, void *handle) -

65 -

66 Registers the pre-rendered QPF2 font contained in the given \a dataArray. -

67 -

68 \sa registerFont() -

69 */ -

70 void QPlatformFontDatabase::registerQPF2Font(const QByteArray &dataArray, void *handle) -

71 { -

if (dataArray.size() == 0)

dataArray.size() == 0	Description
TRUE	never evaluated
FALSE	never evaluated

return;

never executed: return;

74 -

75 const uchar *data = reinterpret_cast<const uchar *>(dataArray.constData()); -

if (QFontEngineQPF2::verifyHeader(data, dataArray.size())) {

QFontEngineQPF...aArray.size())	Description
TRUE	never evaluated
FALSE	never evaluated

77 QString fontName = QFontEngineQPF2::extractHeaderField(data, QFontEngineQPF2::Tag_FontName).toString(); -

78 int pixelSize = QFontEngineQPF2::extractHeaderField(data, QFontEngineQPF2::Tag_PixelSize).toInt(); -

79 QVariant weight = QFontEngineQPF2::extractHeaderField(data, QFontEngineQPF2::Tag_Weight); -

80 QVariant style = QFontEngineQPF2::extractHeaderField(data, QFontEngineQPF2::Tag_Style); -

81 QByteArray writingSystemBits = QFontEngineQPF2::extractHeaderField(data, QFontEngineQPF2::Tag_WritingSystems).toByteArray(); -

82 -

if (!fontName.isEmpty() && pixelSize) {

!fontName.isEmpty()	Description
TRUE	never evaluated
FALSE	never evaluated

pixelSize	Description
TRUE	never evaluated
FALSE	never evaluated

84 QFont::Weight fontWeight = QFont::Normal; -

if (weight.type() == QVariant::Int || weight.type() == QVariant::UInt)

weight.type() == QVariant::Int	Description
TRUE	never evaluated
FALSE	never evaluated

weight.type() ...QVariant::UInt	Description
TRUE	never evaluated
FALSE	never evaluated

fontWeight = QFont::Weight(weight.toInt());

never executed: fontWeight = QFont::Weight(weight.toInt());

87 -

88 QFont::Style fontStyle = static_cast<QFont::Style>(style.toInt()); -

89 -

90 QSupportedWritingSystems writingSystems; -

for (int i = 0; i < writingSystemBits.count(); ++i) {

i < writingSystemBits.count()	Description
TRUE	never evaluated
FALSE	never evaluated

92 uchar currentByte = writingSystemBits.at(i); -

for (int j = 0; j < 8; ++j) {

j < 8	Description
TRUE	never evaluated
FALSE	never evaluated

if (currentByte & 1)

currentByte & 1	Description
TRUE	never evaluated
FALSE	never evaluated

writingSystems.setSupported(QFontDatabase::WritingSystem(i * 8 + j));

never executed: writingSystems.setSupported(QFontDatabase::WritingSystem(i * 8 + j));

96 currentByte >>= 1; -

}

never executed: end of block

}

never executed: end of block

99 QFont::Stretch stretch = QFont::Unstretched; -

100 registerFont(fontName,QString(),QString(),fontWeight,fontStyle,stretch,true,false,pixelSize,false,writingSystems,handle); -

101

}

never executed: end of block

102

} else {

never executed: end of block

103 qDebug("header verification of QPF2 font failed. maybe it is corrupt?"); -

104

}

never executed: end of block

105 } -

106 -

107 /*! -

108 Registers a font with the given set of attributes describing the font's -

109 foundry, family name, style and stretch information, pixel size, and -

110 supported writing systems. Additional information about whether the font -

111 can be scaled and antialiased can also be provided. -

112 -

113 The foundry name and font family are described by \a foundryName and -

114 \a familyName. The font weight (light, normal, bold, etc.), style (normal, -

115 oblique, italic) and stretch information (condensed, expanded, unstretched, -

116 etc.) are specified by \a weight, \a style and \a stretch. -

117 -

118 Some fonts can be antialiased and scaled; \a scalable and \a antialiased -

119 can be set to true for fonts with these attributes. The intended pixel -

120 size of non-scalable fonts is specified by \a pixelSize; this value will be -

121 ignored for scalable fonts. -

122 -

123 The writing systems supported by the font are specified by the -

124 \a writingSystems argument. -

125 -

126 \sa registerQPF2Font(), registerFontFamily() -

127 */ -

128 void QPlatformFontDatabase::registerFont(const QString &familyname, const QString &stylename, -

129 const QString &foundryname, QFont::Weight weight, -

130 QFont::Style style, QFont::Stretch stretch, bool antialiased, -

131 bool scalable, int pixelSize, bool fixedPitch, -

132 const QSupportedWritingSystems &writingSystems, void *usrPtr) -

133 { -

134

if (scalable)

scalable	Description
TRUE	never evaluated
FALSE	never evaluated

135

pixelSize = 0;

never executed: pixelSize = 0;

136 -

137 qt_registerFont(familyname, stylename, foundryname, weight, style, -

138 stretch, antialiased, scalable, pixelSize, -

139 fixedPitch, writingSystems, usrPtr); -

140

}

never executed: end of block

141 -

142 /*! -

143 Registers a font family with the font database. The font will be -

144 lazily populated by a callback to populateFamily() when the font -

145 database determines that the family needs population. -

146 -

147 \sa populateFamily(), registerFont() -

148 */ -

149 void QPlatformFontDatabase::registerFontFamily(const QString &familyName) -

150 { -

151 qt_registerFontFamily(familyName); -

152

}

never executed: end of block

153 -

154 class QWritingSystemsPrivate -

155 { -

156 public: -

157 QWritingSystemsPrivate() -

158 : ref(1) -

159 , vector(QFontDatabase::WritingSystemsCount,false) -

160 { -

161

}

never executed: end of block

162 -

163 QWritingSystemsPrivate(const QWritingSystemsPrivate *other) -

164 : ref(1) -

165 , vector(other->vector) -

166 { -

167

}

never executed: end of block

168 -

169 QAtomicInt ref; -

170 QVector<bool> vector; -

171 }; -

172 -

173 /*! -

174 Constructs a new object to handle supported writing systems. -

175 */ -

176 QSupportedWritingSystems::QSupportedWritingSystems() -

177 { -

178 d = new QWritingSystemsPrivate; -

179

}

never executed: end of block

180 -

181 /*! -

182 Constructs a copy of the \a other writing systems object. -

183 */ -

184 QSupportedWritingSystems::QSupportedWritingSystems(const QSupportedWritingSystems &other) -

185 { -

186 d = other.d; -

187 d->ref.ref(); -

188

}

never executed: end of block

189 -

190 /*! -

191 Constructs a copy of the \a other writing systems object. -

192 */ -

193 QSupportedWritingSystems &QSupportedWritingSystems::operator=(const QSupportedWritingSystems &other) -

194 { -

195

if (d != other.d) {

d != other.d	Description
TRUE	never evaluated
FALSE	never evaluated

196 other.d->ref.ref(); -

197

if (!d->ref.deref())

!d->ref.deref()	Description
TRUE	never evaluated
FALSE	never evaluated

198

delete d;

never executed: delete d;

199 d = other.d; -

200

}

never executed: end of block

201

return *this;

never executed: return *this;

202 } -

203 -

204 /*! -

205 Destroys the supported writing systems object. -

206 */ -

207 QSupportedWritingSystems::~QSupportedWritingSystems() -

208 { -

209

if (!d->ref.deref())

!d->ref.deref()	Description
TRUE	never evaluated
FALSE	never evaluated

210

delete d;

never executed: delete d;

211

}

never executed: end of block

212 -

213 /*! -

214 \internal -

215 */ -

216 void QSupportedWritingSystems::detach() -

217 { -

218

if (d->ref.load() != 1) {

d->ref.load() != 1	Description
TRUE	never evaluated
FALSE	never evaluated

219 QWritingSystemsPrivate *newd = new QWritingSystemsPrivate(d); -

220

if (!d->ref.deref())

!d->ref.deref()	Description
TRUE	never evaluated
FALSE	never evaluated

221

delete d;

never executed: delete d;

222 d = newd; -

223

}

never executed: end of block

224

}

never executed: end of block

225 -

226 /*! -

227 Sets or clears support for the specified \a writingSystem based on the -

228 value given by \a support. -

229 */ -

230 void QSupportedWritingSystems::setSupported(QFontDatabase::WritingSystem writingSystem, bool support) -

231 { -

232 detach(); -

233 d->vector[writingSystem] = support; -

234

}

never executed: end of block

235 -

236 /*! -

237 Returns \c true if the writing system specified by \a writingSystem is -

238 supported; otherwise returns \c false. -

239 */ -

240 bool QSupportedWritingSystems::supported(QFontDatabase::WritingSystem writingSystem) const -

241 { -

242

return d->vector.at(writingSystem);

never executed: return d->vector.at(writingSystem);

243 } -

244 -

245 /*! -

246 \class QSupportedWritingSystems -

247 \brief The QSupportedWritingSystems class is used when registering fonts with the internal Qt -

248 fontdatabase -

249 \ingroup painting -

250 \inmodule QtGui -

251 -

252 Its to provide an easy to use interface for indicating what writing systems a specific font -

253 supports. -

254 -

255 */ -

256 -

257 /*! -

258 \internal -

259 */ -

260 QPlatformFontDatabase::~QPlatformFontDatabase() -

261 { -

262 } -

263 -

264 /*! -

265 This function is called once at startup by Qt's internal font database. -

266 Reimplement this function in a subclass for a convenient place to initialize -

267 the internal font database. -

268 -

269 You may lazily populate the database by calling registerFontFamily() instead -

270 of registerFont(), in which case you'll get a callback to populateFamily() -

271 when the required family needs population. You then call registerFont() to -

272 finish population of the family. -

273 -

274 The default implementation looks in the fontDir() location and registers all -

275 QPF2 fonts. -

276 */ -

277 void QPlatformFontDatabase::populateFontDatabase() -

278 { -

279 QString fontpath = fontDir(); -

280

if(!QFile::exists(fontpath)) {

!QFile::exists(fontpath)	Description
TRUE	never evaluated
FALSE	never evaluated

281 qWarning("QFontDatabase: Cannot find font directory '%s' - is Qt installed correctly?", -

282 qPrintable(QDir::toNativeSeparators(fontpath))); -

283

return;

never executed: return;

284 } -

285 -

286 QDir dir(fontpath); -

287 dir.setNameFilters(QStringList() << QLatin1String("*.qpf2")); -

288 dir.refresh(); -

289

for (int i = 0; i < int(dir.count()); ++i) {

i < int(dir.count())	Description
TRUE	never evaluated
FALSE	never evaluated

290 const QByteArray fileName = QFile::encodeName(dir.absoluteFilePath(dir[i])); -

291 QFile file(QString::fromLocal8Bit(fileName)); -

292

if (file.open(QFile::ReadOnly)) {

file.open(QFile::ReadOnly)	Description
TRUE	never evaluated
FALSE	never evaluated

293 const QByteArray fileData = file.readAll(); -

294 QByteArray *fileDataPtr = new QByteArray(fileData); -

295 registerQPF2Font(fileData, fileDataPtr); -

296

}

never executed: end of block

297

}

never executed: end of block

298

}

never executed: end of block

299 -

300 /*! -

301 This function is called whenever a lazily populated family, populated -

302 through registerFontFamily(), needs full population. -

303 -

304 You are expected to fully populate the family by calling registerFont() -

305 for each font that matches the family name. -

306 */ -

307 void QPlatformFontDatabase::populateFamily(const QString &familyName) -

308 { -

309 Q_UNUSED(familyName); -

310

}

never executed: end of block

311 -

312 /*! -

313 This function is called whenever the font database is invalidated. -

314 -

315 Reimplement this function to clear any internal data structures that -

316 will need to be rebuilt at the next call to populateFontDatabase(). -

317 */ -

318 void QPlatformFontDatabase::invalidate() -

319 { -

320 } -

321 -

322 /*! -

323 Returns a multi font engine in the specified \a script to encapsulate \a fontEngine with the -

324 option to fall back to the fonts given by \a fallbacks if \a fontEngine does not support -

325 a certain character. -

326 */ -

327 QFontEngineMulti *QPlatformFontDatabase::fontEngineMulti(QFontEngine *fontEngine, QChar::Script script) -

328 { -

329

return new QFontEngineMulti(fontEngine, script);

never executed: return new QFontEngineMulti(fontEngine, script);

330 } -

331 -

332 /*! -

333 Returns the font engine that can be used to render the font described by -

334 the font definition, \a fontDef, in the specified \a script. -

335 */ -

336 QFontEngine *QPlatformFontDatabase::fontEngine(const QFontDef &fontDef, void *handle) -

337 { -

338 QByteArray *fileDataPtr = static_cast<QByteArray *>(handle); -

339 QFontEngineQPF2 *engine = new QFontEngineQPF2(fontDef,*fileDataPtr); -

340 //qDebug() << fontDef.pixelSize << fontDef.weight << fontDef.style << fontDef.stretch << fontDef.styleHint << fontDef.styleStrategy << fontDef.family; -

341

return engine;

never executed: return engine;

342 } -

343 -

344 QFontEngine *QPlatformFontDatabase::fontEngine(const QByteArray &fontData, qreal pixelSize, -

345 QFont::HintingPreference hintingPreference) -

346 { -

347 Q_UNUSED(fontData); -

348 Q_UNUSED(pixelSize); -

349 Q_UNUSED(hintingPreference); -

350 qWarning("This plugin does not support font engines created directly from font data"); -

351

return 0;

never executed: return 0;

352 } -

353 -

354 /*! -

355 \fn QStringList QPlatformFontDatabase::fallbacksForFamily(const QString &family, QFont::Style style, QFont::StyleHint styleHint, QChar::Script script) const -

356 -

357 Returns a list of alternative fonts for the specified \a family and -

358 \a style and \a script using the \a styleHint given. -

359 -

360 Default implementation returns a list of fonts for which \a style and \a script support -

361 has been reported during the font database population. -

362 */ -

363 // implemented in qfontdatabase.cpp -

364 -

365 /*! -

366 Adds an application font described by the font contained supplied \a fontData -

367 or using the font contained in the file referenced by \a fileName. Returns -

368 a list of family names, or an empty list if the font could not be added. -

369 -

370 \note The default implementation of this function does not add an application -

371 font. Subclasses should reimplement this function to perform the necessary -

372 loading and registration of fonts. -

373 */ -

374 QStringList QPlatformFontDatabase::addApplicationFont(const QByteArray &fontData, const QString &fileName) -

375 { -

376 Q_UNUSED(fontData); -

377 Q_UNUSED(fileName); -

378 -

379 qWarning("This plugin does not support application fonts"); -

380

return QStringList();

never executed: return QStringList();

381 } -

382 -

383 /*! -

384 Releases the specified font \a handle. -

385 */ -

386 void QPlatformFontDatabase::releaseHandle(void *handle) -

387 { -

388 QByteArray *fileDataPtr = static_cast<QByteArray *>(handle); -

389 delete fileDataPtr; -

390

}

never executed: end of block

391 -

392 /*! -

393 Returns the directory containing the fonts used by the database. -

394 */ -

395 QString QPlatformFontDatabase::fontDir() const -

396 { -

397 QString fontpath = QString::fromLocal8Bit(qgetenv("QT_QPA_FONTDIR")); -

398

if (fontpath.isEmpty()) {

fontpath.isEmpty()	Description
TRUE	never evaluated
FALSE	never evaluated

399 fontpath = QLibraryInfo::location(QLibraryInfo::LibrariesPath); -

400 fontpath += QLatin1String("/fonts"); -

401

}

never executed: end of block

402 -

403

return fontpath;

never executed: return fontpath;

404 } -

405 -

406 /*! -

407 Returns true if the font family is private. For any given family name, -

408 the result is platform dependent. -

409 */ -

410 bool QPlatformFontDatabase::isPrivateFontFamily(const QString &family) const -

411 { -

412 Q_UNUSED(family); -

413

return false;

never executed: return false;

414 } -

415 -

416 /*! -

417 Returns the default system font. -

418 -

419 \sa QGuiApplication::font() -

420 \since 5.0 -

421 */ -

422 -

423 QFont QPlatformFontDatabase::defaultFont() const -

424 { -

425

return QFont(QLatin1String("Helvetica"));

never executed: return QFont(QLatin1String("Helvetica"));

426 } -

427 -

428 /*! -

429 Resolve alias to actual font family names. -

430 -

431 \since 5.0 -

432 */ -

433 -

434 QString qt_resolveFontFamilyAlias(const QString &alias); -

435 -

436 QString QPlatformFontDatabase::resolveFontFamilyAlias(const QString &family) const -

437 { -

438

return qt_resolveFontFamilyAlias(family);

never executed: return qt_resolveFontFamilyAlias(family);

439 } -

440 -

441 /*! -

442 Return true if all fonts are considered scalable when using this font database. -

443 Defaults to false. -

444 -

445 \since 5.0 -

446 */ -

447 -

448 bool QPlatformFontDatabase::fontsAlwaysScalable() const -

449 { -

450

return false;

never executed: return false;

451 } -

452 -

453 /*! -

454 Return list of standard font sizes when using this font database. -

455 -

456 \since 5.0 -

457 */ -

458 -

459 QList<int> QPlatformFontDatabase::standardSizes() const -

460 { -

461 QList<int> ret; -

462 static const quint8 standard[] = -

463 { 6, 7, 8, 9, 10, 11, 12, 14, 16, 18, 20, 22, 24, 26, 28, 36, 48, 72 }; -

464 static const int num_standards = int(sizeof standard / sizeof *standard); -

465 ret.reserve(num_standards); -

466 std::copy(standard, standard + num_standards, std::back_inserter(ret)); -

467

return ret;

never executed: return ret;

468 } -

469 -

470 QFontEngine::SubpixelAntialiasingType QPlatformFontDatabase::subpixelAntialiasingTypeHint() const -

471 { -

472 static int type = -1; -

473

if (type == -1) {

type == -1	Description
TRUE	never evaluated
FALSE	never evaluated

474

if (QScreen *screen = QGuiApplication::primaryScreen())

QScreen *scree...rimaryScreen()	Description
TRUE	never evaluated
FALSE	never evaluated

475

type = screen->handle()->subpixelAntialiasingTypeHint();

never executed: type = screen->handle()->subpixelAntialiasingTypeHint();

476

}

never executed: end of block

477

return static_cast<QFontEngine::SubpixelAntialiasingType>(type);

never executed: return static_cast<QFontEngine::SubpixelAntialiasingType>(type);

478 } -

479 -

480 // ### copied to tools/makeqpf/qpf2.cpp -

481 -

482 // see the Unicode subset bitfields in the MSDN docs -

483 static const quint8 requiredUnicodeBits[QFontDatabase::WritingSystemsCount][2] = { -

484 { 127, 127 }, // Any -

485 { 0, 127 }, // Latin -

486 { 7, 127 }, // Greek -

487 { 9, 127 }, // Cyrillic -

488 { 10, 127 }, // Armenian -

489 { 11, 127 }, // Hebrew -

490 { 13, 127 }, // Arabic -

491 { 71, 127 }, // Syriac -

492 { 72, 127 }, // Thaana -

493 { 15, 127 }, // Devanagari -

494 { 16, 127 }, // Bengali -

495 { 17, 127 }, // Gurmukhi -

496 { 18, 127 }, // Gujarati -

497 { 19, 127 }, // Oriya -

498 { 20, 127 }, // Tamil -

499 { 21, 127 }, // Telugu -

500 { 22, 127 }, // Kannada -

501 { 23, 127 }, // Malayalam -

502 { 73, 127 }, // Sinhala -

503 { 24, 127 }, // Thai -

504 { 25, 127 }, // Lao -

505 { 70, 127 }, // Tibetan -

506 { 74, 127 }, // Myanmar -

507 { 26, 127 }, // Georgian -

508 { 80, 127 }, // Khmer -

509 { 126, 127 }, // SimplifiedChinese -

510 { 126, 127 }, // TraditionalChinese -

511 { 126, 127 }, // Japanese -

512 { 56, 127 }, // Korean -

513 { 0, 127 }, // Vietnamese (same as latin1) -

514 { 126, 127 }, // Other -

515 { 78, 127 }, // Ogham -

516 { 79, 127 }, // Runic -

517 { 14, 127 }, // Nko -

518 }; -

519 -

520 enum CsbBits { -

521 Latin1CsbBit = 0, -

522 CentralEuropeCsbBit = 1, -

523 TurkishCsbBit = 4, -

524 BalticCsbBit = 7, -

525 CyrillicCsbBit = 2, -

526 GreekCsbBit = 3, -

527 HebrewCsbBit = 5, -

528 ArabicCsbBit = 6, -

529 VietnameseCsbBit = 8, -

530 SimplifiedChineseCsbBit = 18, -

531 TraditionalChineseCsbBit = 20, -

532 ThaiCsbBit = 16, -

533 JapaneseCsbBit = 17, -

534 KoreanCsbBit = 19, -

535 KoreanJohabCsbBit = 21, -

536 SymbolCsbBit = 31 -

537 }; -

538 -

539 /*! -

540 Helper function that determines the writing systems support by a given -

541 \a unicodeRange and \a codePageRange. -

542 -

543 \since 5.1 -

544 */ -

545 QSupportedWritingSystems QPlatformFontDatabase::writingSystemsFromTrueTypeBits(quint32 unicodeRange[4], quint32 codePageRange[2]) -

546 { -

547 QSupportedWritingSystems writingSystems; -

548 -

549 bool hasScript = false; -

550

for (int i = 0; i < QFontDatabase::WritingSystemsCount; ++i) {

i < QFontDatab...ngSystemsCount	Description
TRUE	never evaluated
FALSE	never evaluated

551 int bit = requiredUnicodeBits[i][0]; -

552 int index = bit/32; -

553 int flag = 1 << (bit&31); -

554

if (bit != 126 && (unicodeRange[index] & flag)) {

bit != 126	Description
TRUE	never evaluated
FALSE	never evaluated

(unicodeRange[index] & flag)	Description
TRUE	never evaluated
FALSE	never evaluated

555 bit = requiredUnicodeBits[i][1]; -

556 index = bit/32; -

557 -

558 flag = 1 << (bit&31); -

559

if (bit == 127 || (unicodeRange[index] & flag)) {

bit == 127	Description
TRUE	never evaluated
FALSE	never evaluated

(unicodeRange[index] & flag)	Description
TRUE	never evaluated
FALSE	never evaluated

560 writingSystems.setSupported(QFontDatabase::WritingSystem(i)); -

561 hasScript = true; -

562 // qDebug("font %s: index=%d, flag=%8x supports script %d", familyName.latin1(), index, flag, i); -

563

}

never executed: end of block

564

}

never executed: end of block

565

}

never executed: end of block

566

if (codePageRange[0] & ((1 << Latin1CsbBit) | (1 << CentralEuropeCsbBit) | (1 << TurkishCsbBit) | (1 << BalticCsbBit))) {

codePageRange[...BalticCsbBit))	Description
TRUE	never evaluated
FALSE	never evaluated

567 writingSystems.setSupported(QFontDatabase::Latin); -

568 hasScript = true; -

569 //qDebug("font %s supports Latin", familyName.latin1()); -

570

}

never executed: end of block

571

if (codePageRange[0] & (1 << CyrillicCsbBit)) {

codePageRange[...yrillicCsbBit)	Description
TRUE	never evaluated
FALSE	never evaluated

572 writingSystems.setSupported(QFontDatabase::Cyrillic); -

573 hasScript = true; -

574 //qDebug("font %s supports Cyrillic", familyName.latin1()); -

575

}

never executed: end of block

576

if (codePageRange[0] & (1 << GreekCsbBit)) {

codePageRange[...< GreekCsbBit)	Description
TRUE	never evaluated
FALSE	never evaluated

577 writingSystems.setSupported(QFontDatabase::Greek); -

578 hasScript = true; -

579 //qDebug("font %s supports Greek", familyName.latin1()); -

580

}

never executed: end of block

581

if (codePageRange[0] & (1 << HebrewCsbBit)) {

codePageRange[... HebrewCsbBit)	Description
TRUE	never evaluated
FALSE	never evaluated

582 writingSystems.setSupported(QFontDatabase::Hebrew); -

583 hasScript = true; -

584 //qDebug("font %s supports Hebrew", familyName.latin1()); -

585

}

never executed: end of block

586

if (codePageRange[0] & (1 << ArabicCsbBit)) {

codePageRange[... ArabicCsbBit)	Description
TRUE	never evaluated
FALSE	never evaluated

587 writingSystems.setSupported(QFontDatabase::Arabic); -

588 hasScript = true; -

589 //qDebug("font %s supports Arabic", familyName.latin1()); -

590

}

never executed: end of block

591

if (codePageRange[0] & (1 << ThaiCsbBit)) {

codePageRange[...<< ThaiCsbBit)	Description
TRUE	never evaluated
FALSE	never evaluated

592 writingSystems.setSupported(QFontDatabase::Thai); -

593 hasScript = true; -

594 //qDebug("font %s supports Thai", familyName.latin1()); -

595

}

never executed: end of block

596

if (codePageRange[0] & (1 << VietnameseCsbBit)) {

codePageRange[...tnameseCsbBit)	Description
TRUE	never evaluated
FALSE	never evaluated

597 writingSystems.setSupported(QFontDatabase::Vietnamese); -

598 hasScript = true; -

599 //qDebug("font %s supports Vietnamese", familyName.latin1()); -

600

}

never executed: end of block

601

if (codePageRange[0] & (1 << SimplifiedChineseCsbBit)) {

codePageRange[...ChineseCsbBit)	Description
TRUE	never evaluated
FALSE	never evaluated

602 writingSystems.setSupported(QFontDatabase::SimplifiedChinese); -

603 hasScript = true; -

604 //qDebug("font %s supports Simplified Chinese", familyName.latin1()); -

605

}

never executed: end of block

606

if (codePageRange[0] & (1 << TraditionalChineseCsbBit)) {

codePageRange[...ChineseCsbBit)	Description
TRUE	never evaluated
FALSE	never evaluated

607 writingSystems.setSupported(QFontDatabase::TraditionalChinese); -

608 hasScript = true; -

609 //qDebug("font %s supports Traditional Chinese", familyName.latin1()); -

610

}

never executed: end of block

611

if (codePageRange[0] & (1 << JapaneseCsbBit)) {

codePageRange[...apaneseCsbBit)	Description
TRUE	never evaluated
FALSE	never evaluated

612 writingSystems.setSupported(QFontDatabase::Japanese); -

613 hasScript = true; -

614 //qDebug("font %s supports Japanese", familyName.latin1()); -

615

}

never executed: end of block

616

if (codePageRange[0] & ((1 << KoreanCsbBit) | (1 << KoreanJohabCsbBit))) {

codePageRange[...nJohabCsbBit))	Description
TRUE	never evaluated
FALSE	never evaluated

617 writingSystems.setSupported(QFontDatabase::Korean); -

618 hasScript = true; -

619 //qDebug("font %s supports Korean", familyName.latin1()); -

620

}

never executed: end of block

621

if (codePageRange[0] & (1U << SymbolCsbBit)) {

codePageRange[... SymbolCsbBit)	Description
TRUE	never evaluated
FALSE	never evaluated

622 writingSystems = QSupportedWritingSystems(); -

623 hasScript = false; -

624

}

never executed: end of block

625 -

626

if (!hasScript)

!hasScript	Description
TRUE	never evaluated
FALSE	never evaluated

627

writingSystems.setSupported(QFontDatabase::Symbol);

never executed: writingSystems.setSupported(QFontDatabase::Symbol);

628 -

629

return writingSystems;

never executed: return writingSystems;

630 } -

631 -

632 /*! -

633 Helper function that returns the Qt font weight matching a given opentype integer value. -

634 -

635 \since 5.5 -

636 */ -

637 -

638 // convert 0 ~ 1000 integer to QFont::Weight -

639 QFont::Weight QPlatformFontDatabase::weightFromInteger(int weight) -

640 { -

641

if (weight < 150)

weight < 150	Description
TRUE	never evaluated
FALSE	never evaluated

642

return QFont::Thin;

never executed: return QFont::Thin;

643

if (weight < 250)

weight < 250	Description
TRUE	never evaluated
FALSE	never evaluated

644

return QFont::ExtraLight;

never executed: return QFont::ExtraLight;

645

if (weight < 350)

weight < 350	Description
TRUE	never evaluated
FALSE	never evaluated

646

return QFont::Light;

never executed: return QFont::Light;

647

if (weight < 450)

weight < 450	Description
TRUE	never evaluated
FALSE	never evaluated

648

return QFont::Normal;

never executed: return QFont::Normal;

649

if (weight < 550)

weight < 550	Description
TRUE	never evaluated
FALSE	never evaluated

650

return QFont::Medium;

never executed: return QFont::Medium;

651

if (weight < 650)

weight < 650	Description
TRUE	never evaluated
FALSE	never evaluated

652

return QFont::DemiBold;

never executed: return QFont::DemiBold;

653

if (weight < 750)

weight < 750	Description
TRUE	never evaluated
FALSE	never evaluated

654

return QFont::Bold;

never executed: return QFont::Bold;

655

if (weight < 850)

weight < 850	Description
TRUE	never evaluated
FALSE	never evaluated

656

return QFont::ExtraBold;

never executed: return QFont::ExtraBold;

657

return QFont::Black;

never executed: return QFont::Black;

658 } -

659 -

660 /*! -

661 Helper function that register the \a alias for the \a familyName. -

662 -

663 \since 5.2 -

664 */ -

665 -

666 void QPlatformFontDatabase::registerAliasToFontFamily(const QString &familyName, const QString &alias) -

667 { -

668 qt_registerAliasToFontFamily(familyName, alias); -

669

}

never executed: end of block

670 -

671 /*! -

672 \class QPlatformFontDatabase -

673 \since 5.0 -

674 \internal -

675 \preliminary -

676 \ingroup qpa -

677 \ingroup painting -

678 -

679 \brief The QPlatformFontDatabase class makes it possible to customize how fonts -

680 are discovered and how they are rendered -

681 -

682 QPlatformFontDatabase is the superclass which is intended to let platform implementations use -

683 native font handling. -

684 -

685 Qt has its internal font database which it uses to discover available fonts on the -

686 user's system. To be able to populate this database subclass this class, and -

687 reimplement populateFontDatabase(). -

688 -

689 Use the function registerFont() to populate the internal font database. -

690 -

691 Sometimes a specified font does not have the required glyphs; in such a case, the -

692 fallbackForFamily() function is called automatically to find alternative font -

693 families that can supply alternatives to the missing glyphs. -

694 -

695 \sa QSupportedWritingSystems -

696 */ -

697 QT_END_NAMESPACE -

Source code

Switch to Preprocessed file

Generated by Squish Coco Non-Commercial 4.3.0-BETA-master-30-08-2018-4cb69e9