qrawfont.cpp

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

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Preprocessed file

Line Source Count

1 -

2 -

3 -

4 -

5 -

6 -

7 -

8 QRawFont::QRawFont() -

9 : d(new QRawFontPrivate) -

10 { -

11 } -

12 QRawFont::QRawFont(const QString &fileName, -

13 qreal pixelSize, -

14 QFont::HintingPreference hintingPreference) -

15 : d(new QRawFontPrivate) -

16 { -

17 loadFromFile(fileName, pixelSize, hintingPreference); -

18 } -

19 QRawFont::QRawFont(const QByteArray &fontData, -

20 qreal pixelSize, -

21 QFont::HintingPreference hintingPreference) -

22 : d(new QRawFontPrivate) -

23 { -

24 loadFromData(fontData, pixelSize, hintingPreference); -

25 } -

26 -

27 -

28 -

29 -

30 QRawFont::QRawFont(const QRawFont &other) -

31 { -

32 d = other.d; -

33 } -

34 -

35 -

36 -

37 -

38 QRawFont::~QRawFont() -

39 { -

40 } -

41 -

42 -

43 -

44 -

45 QRawFont &QRawFont::operator=(const QRawFont &other) -

46 { -

47 d = other.d; -

48 return *this; -

49 } -

50 bool QRawFont::isValid() const -

51 { -

52 return d->isValid(); -

53 } -

54 void QRawFont::loadFromFile(const QString &fileName, -

55 qreal pixelSize, -

56 QFont::HintingPreference hintingPreference) -

57 { -

58 QFile file(fileName); -

59 if (file.open(QIODevice::ReadOnly)) -

60 loadFromData(file.readAll(), pixelSize, hintingPreference); -

61 } -

62 void QRawFont::loadFromData(const QByteArray &fontData, -

63 qreal pixelSize, -

64 QFont::HintingPreference hintingPreference) -

65 { -

66 d.detach(); -

67 d->cleanUp(); -

68 d->hintingPreference = hintingPreference; -

69 d->loadFromData(fontData, pixelSize, hintingPreference); -

70 } -

71 QImage QRawFont::alphaMapForGlyph(quint32 glyphIndex, AntialiasingType antialiasingType, -

72 const QTransform &transform) const -

73 { -

74 if (!d->isValid()) -

75 return QImage(); -

76 -

77 if (antialiasingType == SubPixelAntialiasing) -

78 return d->fontEngine->alphaRGBMapForGlyph(glyphIndex, QFixed(), transform); -

79 -

80 return d->fontEngine->alphaMapForGlyph(glyphIndex, QFixed(), transform); -

81 } -

82 QPainterPath QRawFont::pathForGlyph(quint32 glyphIndex) const -

83 { -

84 if (!d->isValid()) -

85 return QPainterPath(); -

86 -

87 QFixedPoint position; -

88 QPainterPath path; -

89 d->fontEngine->addGlyphsToPath(&glyphIndex, &position, 1, &path, 0); -

90 return path; -

91 } -

92 -

93 -

94 -

95 -

96 bool QRawFont::operator==(const QRawFont &other) const -

97 { -

98 return d->fontEngine == other.d->fontEngine; -

99 } -

100 qreal QRawFont::ascent() const -

101 { -

102 return d->isValid() ? d->fontEngine->ascent().toReal() : 0.0; -

103 } -

104 qreal QRawFont::descent() const -

105 { -

106 return d->isValid() ? d->fontEngine->descent().toReal() : 0.0; -

107 } -

108 qreal QRawFont::xHeight() const -

109 { -

110 return d->isValid() ? d->fontEngine->xHeight().toReal() : 0.0; -

111 } -

112 qreal QRawFont::leading() const -

113 { -

114 return d->isValid() ? d->fontEngine->leading().toReal() : 0.0; -

115 } -

116 -

117 -

118 -

119 -

120 -

121 -

122 qreal QRawFont::averageCharWidth() const -

123 { -

124 return d->isValid() ? d->fontEngine->averageCharWidth().toReal() : 0.0; -

125 } -

126 -

127 -

128 -

129 -

130 -

131 -

132 qreal QRawFont::maxCharWidth() const -

133 { -

134 return d->isValid() ? d->fontEngine->maxCharWidth() : 0.0; -

135 } -

136 qreal QRawFont::pixelSize() const -

137 { -

138 return d->isValid() ? d->fontEngine->fontDef.pixelSize : 0.0; -

139 } -

140 qreal QRawFont::unitsPerEm() const -

141 { -

142 return d->isValid() ? d->fontEngine->emSquareSize().toReal() : 0.0; -

143 } -

144 -

145 -

146 -

147 -

148 -

149 qreal QRawFont::lineThickness() const -

150 { -

151 return d->isValid() ? d->fontEngine->lineThickness().toReal() : 0.0; -

152 } -

153 -

154 -

155 -

156 -

157 -

158 qreal QRawFont::underlinePosition() const -

159 { -

160 return d->isValid() ? d->fontEngine->underlinePosition().toReal() : 0.0; -

161 } -

162 -

163 -

164 -

165 -

166 QString QRawFont::familyName() const -

167 { -

168 return d->isValid() ? d->fontEngine->fontDef.family : QString(); -

169 } -

170 -

171 -

172 -

173 -

174 -

175 -

176 QString QRawFont::styleName() const -

177 { -

178 return d->isValid() ? d->fontEngine->fontDef.styleName : QString(); -

179 } -

180 -

181 -

182 -

183 -

184 -

185 -

186 QFont::Style QRawFont::style() const -

187 { -

188 return d->isValid() ? QFont::Style(d->fontEngine->fontDef.style) : QFont::StyleNormal; -

189 } -

190 -

191 -

192 -

193 -

194 -

195 -

196 int QRawFont::weight() const -

197 { -

198 return d->isValid() ? int(d->fontEngine->fontDef.weight) : -1; -

199 } -

200 QVector<quint32> QRawFont::glyphIndexesForString(const QString &text) const -

201 { -

202 QVector<quint32> glyphIndexes; -

203 if (!d->isValid() || text.isEmpty()) -

204 return glyphIndexes; -

205 -

206 int numGlyphs = text.size(); -

207 glyphIndexes.resize(numGlyphs); -

208 -

209 QGlyphLayout glyphs; -

210 glyphs.numGlyphs = numGlyphs; -

211 glyphs.glyphs = glyphIndexes.data(); -

212 if (!d->fontEngine->stringToCMap(text.data(), text.size(), &glyphs, &numGlyphs, QFontEngine::GlyphIndicesOnly)) -

213 do { ((!(false)) ? qt_assert_x("Q_UNREACHABLE()", "Q_UNREACHABLE was reached",__FILE__,493500) : qt_noop()); __builtin_unreachable(); } while (0); -

214 -

215 glyphIndexes.resize(numGlyphs); -

216 return glyphIndexes; -

217 } -

218 bool QRawFont::glyphIndexesForChars(const QChar *chars, int numChars, quint32 *glyphIndexes, int *numGlyphs) const -

219 { -

220 ((!(numGlyphs)) ? qt_assert("numGlyphs",__FILE__,511518) : qt_noop()); -

221 if (!d->isValid() || numChars <= 0) { -

222 *numGlyphs = 0; -

223 return false; -

224 } -

225 -

226 if (*numGlyphs <= 0 || !glyphIndexes) { -

227 *numGlyphs = numChars; -

228 return false; -

229 } -

230 -

231 QGlyphLayout glyphs; -

232 glyphs.numGlyphs = *numGlyphs; -

233 glyphs.glyphs = glyphIndexes; -

234 return d->fontEngine->stringToCMap(chars, numChars, &glyphs, numGlyphs, QFontEngine::GlyphIndicesOnly); -

235 } -

236 bool QRawFont::advancesForGlyphIndexes(const quint32 *glyphIndexes, QPointF *advances, int numGlyphs, LayoutFlags layoutFlags) const -

237 { -

238 ((!(glyphIndexes && advances)) ? qt_assert("glyphIndexes && advances",__FILE__,566573) : qt_noop()); -

239 if (!d->isValid() || numGlyphs <= 0) -

240 return false; -

241 -

242 QVarLengthArray<QFixed> tmpAdvances(numGlyphs); -

243 -

244 QGlyphLayout glyphs; -

245 glyphs.glyphs = const_cast<glyph_t *>(glyphIndexes); -

246 glyphs.numGlyphs = numGlyphs; -

247 glyphs.advances = tmpAdvances.data(); -

248 -

249 bool design = layoutFlags & UseDesignMetrics; -

250 -

251 d->fontEngine->recalcAdvances(&glyphs, design ? QFontEngine::DesignMetrics : QFontEngine::ShaperFlag(0)); -

252 if (layoutFlags & KernedAdvances) -

253 d->fontEngine->doKerning(&glyphs, design ? QFontEngine::DesignMetrics : QFontEngine::ShaperFlag(0)); -

254 -

255 for (int i=0; i<numGlyphs; ++i) -

256 advances[i] = QPointF(tmpAdvances[i].toReal(), 0.0); -

257 -

258 return true; -

259 } -

260 bool QRawFont::advancesForGlyphIndexes(const quint32 *glyphIndexes, QPointF *advances, int numGlyphs) const -

261 { -

262 return QRawFont::advancesForGlyphIndexes(glyphIndexes, advances, numGlyphs, SeparateAdvances); -

263 } -

264 -

265 -

266 -

267 -

268 -

269 -

270 QFont::HintingPreference QRawFont::hintingPreference() const -

271 { -

272 return d->isValid() ? d->hintingPreference : QFont::PreferDefaultHinting; -

273 } -

274 -

275 -

276 -

277 -

278 -

279 -

280 -

281 QByteArray QRawFont::fontTable(const char *tagName) const -

282 { -

283 if (!d->isValid()) -

284 return QByteArray(); -

285 -

286 return d->fontEngine->getSfntTable(( (((quint32)(tagName[0])) << 24) | (((quint32)(tagName[1])) << 16) | (((quint32)(tagName[2])) << 8) | ((quint32)(tagName[3])) )); -

287 } -

288 QList<QFontDatabase::WritingSystem> QRawFont::supportedWritingSystems() const -

289 { -

290 QList<QFontDatabase::WritingSystem> writingSystems; -

291 if (d->isValid()) { -

292 QByteArray os2Table = fontTable("OS/2"); -

293 if (os2Table.size() > 86) { -

294 const uchar * const data = reinterpret_cast<const uchar *>(os2Table.constData()); -

295 const uchar * const bigEndianUnicodeRanges = data + 42; -

296 const uchar * const bigEndianCodepageRanges = data + 78; -

297 -

298 quint32 unicodeRanges[4]; -

299 quint32 codepageRanges[2]; -

300 -

301 for (size_t i = 0; i < sizeof unicodeRanges / sizeof *unicodeRanges; ++i) -

302 unicodeRanges[i] = qFromBigEndian<quint32>(bigEndianUnicodeRanges + i * sizeof(quint32)); -

303 -

304 for (size_t i = 0; i < sizeof codepageRanges / sizeof *codepageRanges; ++i) -

305 codepageRanges[i] = qFromBigEndian<quint32>(bigEndianCodepageRanges + i * sizeof(quint32)); -

306 -

307 QSupportedWritingSystems ws = QPlatformFontDatabase::writingSystemsFromTrueTypeBits(unicodeRanges, codepageRanges); -

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

309 if (ws.supported(QFontDatabase::WritingSystem(i))) -

310 writingSystems.append(QFontDatabase::WritingSystem(i)); -

311 } -

312 } -

313 } -

314 -

315 return writingSystems; -

316 } -

317 -

318 -

319 -

320 -

321 -

322 -

323 bool QRawFont::supportsCharacter(QChar character) const -

324 { -

325 return supportsCharacter(character.unicode()); -

326 } -

327 bool QRawFont::supportsCharacter(uint ucs4) const -

328 { -

329 return d->isValid() && d->fontEngine->canRender(ucs4); -

330 } -

331 -

332 -

333 extern int qt_script_for_writing_system(QFontDatabase::WritingSystem writingSystem); -

334 QRawFont QRawFont::fromFont(const QFont &font, QFontDatabase::WritingSystem writingSystem) -

335 { -

336 QRawFont rawFont; -

337 const QFontPrivate *font_d = QFontPrivate::get(font); -

338 int script = qt_script_for_writing_system(writingSystem); -

339 QFontEngine *fe = font_d->engineForScript(script); -

340 -

341

if (fe != 0

fe != 0	Description
TRUE	never evaluated
FALSE	never evaluated

&& fe->type() == QFontEngine::Multi

fe->type() == ...tEngine::Multi	Description
TRUE	never evaluated
FALSE	never evaluated

) {

342 QFontEngineMulti *multiEngine = static_cast<QFontEngineMulti *>(fe); -

343 fe = multiEngine->engine(0); -

344 -

345

if (script > QChar::Script_Latin

script > QChar::Script_Latin	Description
TRUE	never evaluated
FALSE	never evaluated

) {

346 -

347 QFontDef request(multiEngine->fontDef); -

348 request.styleStrategy |= QFont::NoFontMerging; -

349 -

350

if (QFontEngine *engine = QFontDatabase::findFont(request, script)

QFontEngine *e...quest, script)	Description
TRUE	never evaluated
FALSE	never evaluated

) {

351

if (request.weight > QFont::Normal

request.weight > QFont::Normal	Description
TRUE	never evaluated
FALSE	never evaluated

)

352

engine->fontDef.weight = request.weight;

never executed: engine->fontDef.weight = request.weight;

353

if (request.style > QFont::StyleNormal

request.style ...t::StyleNormal	Description
TRUE	never evaluated
FALSE	never evaluated

)

354

engine->fontDef.style = request.style;

never executed: engine->fontDef.style = request.style;

355 fe = engine; -

356

}

never executed: end of block

357

}

never executed: end of block

358 ((!(fe)) ? qt_assert("fe",__FILE__,712733) : qt_noop()); -

359

}

never executed: end of block

360 -

361

if (fe != 0

fe != 0	Description
TRUE	never evaluated
FALSE	never evaluated

) {

362 rawFont.d.data()->setFontEngine(fe); -

363 rawFont.d.data()->hintingPreference = font.hintingPreference(); -

364

}

never executed: end of block

365

return

never executed: return rawFont;

rawFont;

never executed: return rawFont;

366 } -

367 -

368 -

369 -

370 -

371 void QRawFont::setPixelSize(qreal pixelSize) -

372 { -

373 if (!d->isValid() || qFuzzyCompare(d->fontEngine->fontDef.pixelSize, pixelSize)) -

374 return; -

375 -

376 d.detach(); -

377 d->setFontEngine(d->fontEngine->cloneWithSize(pixelSize)); -

378 } -

379 -

380 -

381 -

382 -

383 void QRawFontPrivate::loadFromData(const QByteArray &fontData, qreal pixelSize, -

384 QFont::HintingPreference hintingPreference) -

385 { -

386 ((!(fontEngine == 0)) ? qt_assert("fontEngine == 0",__FILE__,740761) : qt_noop()); -

387 -

388 QPlatformFontDatabase *pfdb = QGuiApplicationPrivate::platformIntegration()->fontDatabase(); -

389 setFontEngine(pfdb->fontEngine(fontData, pixelSize, hintingPreference)); -

390 } -

391 -

392 -

393 -

394 -

395 -

396 -

397 QRectF QRawFont::boundingRect(quint32 glyphIndex) const -

398 { -

399 if (!d->isValid()) -

400 return QRectF(); -

401 -

402 glyph_metrics_t gm = d->fontEngine->boundingBox(glyphIndex); -

403 return QRectF(gm.x.toReal(), gm.y.toReal(), gm.width.toReal(), gm.height.toReal()); -

404 } -

405 -

406 -

407 -

408 -

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