qpen.cpp

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/home/qt/qt5_coco/qt5/qtbase/src/gui/painting/qpen.cpp

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Line Source Count

1 -

2 -

3 -

4 -

5 typedef QPenPrivate QPenData; -

6 inline QPenPrivate::QPenPrivate(const QBrush &_brush, qreal _width, Qt::PenStyle penStyle, -

7 Qt::PenCapStyle _capStyle, Qt::PenJoinStyle _joinStyle, bool _defaultWidth) -

8 : ref(1), dashOffset(0), miterLimit(2), -

9 cosmetic(false), defaultWidth(_defaultWidth) -

10 { -

11 width = _width; -

12 brush = _brush; -

13 style = penStyle; -

14 capStyle = _capStyle; -

15 joinStyle = _joinStyle; -

16 } -

17 -

18 static const Qt::PenCapStyle qpen_default_cap = Qt::SquareCap; -

19 static const Qt::PenJoinStyle qpen_default_join = Qt::BevelJoin; -

20 -

21 class QPenDataHolder -

22 { -

23 public: -

24 QPenData *pen; -

25 QPenDataHolder(const QBrush &brush, qreal width, Qt::PenStyle penStyle, -

26 Qt::PenCapStyle penCapStyle, Qt::PenJoinStyle _joinStyle) -

27 : pen(new QPenData(brush, width, penStyle, penCapStyle, _joinStyle)) -

28 { } -

29 ~QPenDataHolder() -

30 { -

31 if (!pen->ref.deref()) -

32 delete pen; -

33 pen = 0; -

34 } -

35 }; -

36 -

37 namespace { namespace Q_QGS_defaultPenInstance { typedef QPenDataHolder Type; QBasicAtomicInt guard = { QtGlobalStatic::Uninitialized }; __attribute__((visibility("hidden"))) inline Type *innerFunction() { struct HolderBase { ~HolderBase() noexcept { if (guard.load() == QtGlobalStatic::Initialized) guard.store(QtGlobalStatic::Destroyed); } }; static struct Holder : public HolderBase { Type value; Holder() noexcept(noexcept(Type (Qt::black, 1, Qt::SolidLine, qpen_default_cap, qpen_default_join))) : value (Qt::black, 1, Qt::SolidLine, qpen_default_cap, qpen_default_join) { guard.store(QtGlobalStatic::Initialized); } } holder; return &holder.value; } } } static QGlobalStatic<QPenDataHolder, Q_QGS_defaultPenInstance::innerFunction, Q_QGS_defaultPenInstance::guard> defaultPenInstance; -

38 -

39 namespace { namespace Q_QGS_nullPenInstance { typedef QPenDataHolder Type; QBasicAtomicInt guard = { QtGlobalStatic::Uninitialized }; __attribute__((visibility("hidden"))) inline Type *innerFunction() { struct HolderBase { ~HolderBase() noexcept { if (guard.load() == QtGlobalStatic::Initialized) guard.store(QtGlobalStatic::Destroyed); } }; static struct Holder : public HolderBase { Type value; Holder() noexcept(noexcept(Type (Qt::black, 1, Qt::NoPen, qpen_default_cap, qpen_default_join))) : value (Qt::black, 1, Qt::NoPen, qpen_default_cap, qpen_default_join) { guard.store(QtGlobalStatic::Initialized); } } holder; return &holder.value; } } } static QGlobalStatic<QPenDataHolder, Q_QGS_nullPenInstance::innerFunction, Q_QGS_nullPenInstance::guard> nullPenInstance; -

40 -

41 -

42 -

43 -

44 -

45 -

46 QPen::QPen() -

47 { -

48 d = defaultPenInstance()->pen; -

49 d->ref.ref(); -

50 } -

51 -

52 -

53 -

54 -

55 -

56 -

57 -

58 QPen::QPen(Qt::PenStyle style) -

59 { -

60 if (style == Qt::NoPen) { -

61 d = nullPenInstance()->pen; -

62 d->ref.ref(); -

63 } else { -

64 d = new QPenData(Qt::black, 1, style, qpen_default_cap, qpen_default_join); -

65 } -

66 } -

67 QPen::QPen(const QColor &color) -

68 { -

69 d = new QPenData(color, 1, Qt::SolidLine, qpen_default_cap, qpen_default_join); -

70 } -

71 QPen::QPen(const QBrush &brush, qreal width, Qt::PenStyle s, Qt::PenCapStyle c, Qt::PenJoinStyle j) -

72 { -

73 d = new QPenData(brush, width, s, c, j, false); -

74 } -

75 -

76 -

77 -

78 -

79 -

80 -

81 -

82 QPen::QPen(const QPen &p) noexcept -

83 { -

84 d = p.d; -

if (d

d	Description
TRUE	never evaluated
FALSE	never evaluated

)

d->ref.ref();

never executed: d->ref.ref();

}

never executed: end of block

88 QPen::~QPen() -

89 { -

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

91 delete d; -

92 } -

93 void QPen::detach() -

94 { -

95 if (d->ref.load() == 1) -

96 return; -

97 -

98 QPenData *x = new QPenData(*static_cast<QPenData *>(d)); -

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

100 delete d; -

101 x->ref.store(1); -

102 d = x; -

103 } -

104 QPen &QPen::operator=(const QPen &p) noexcept -

105 { -

106 QPen(p).swap(*this); -

107

return

never executed: return *this;

*this;

never executed: return *this;

108 } -

109 QPen::operator QVariant() const -

110 { -

111 return QVariant(QVariant::Pen, this); -

112 } -

113 Qt::PenStyle QPen::style() const -

114 { -

115 return d->style; -

116 } -

117 void QPen::setStyle(Qt::PenStyle s) -

118 { -

119 if (d->style == s) -

120 return; -

121 detach(); -

122 d->style = s; -

123 QPenData *dd = static_cast<QPenData *>(d); -

124 dd->dashPattern.clear(); -

125 dd->dashOffset = 0; -

126 } -

127 -

128 -

129 -

130 -

131 -

132 -

133 QVector<qreal> QPen::dashPattern() const -

134 { -

135 QPenData *dd = static_cast<QPenData *>(d); -

136 if (d->style == Qt::SolidLine || d->style == Qt::NoPen) { -

137 return QVector<qreal>(); -

138 } else if (dd->dashPattern.isEmpty()) { -

139 const qreal space = 2; -

140 const qreal dot = 1; -

141 const qreal dash = 4; -

142 -

143 switch (d->style) { -

144 case Qt::DashLine: -

145 dd->dashPattern.reserve(2); -

146 dd->dashPattern << dash << space; -

147 break; -

148 case Qt::DotLine: -

149 dd->dashPattern.reserve(2); -

150 dd->dashPattern << dot << space; -

151 break; -

152 case Qt::DashDotLine: -

153 dd->dashPattern.reserve(4); -

154 dd->dashPattern << dash << space << dot << space; -

155 break; -

156 case Qt::DashDotDotLine: -

157 dd->dashPattern.reserve(6); -

158 dd->dashPattern << dash << space << dot << space << dot << space; -

159 break; -

160 default: -

161 break; -

162 } -

163 } -

164 return dd->dashPattern; -

165 } -

166 void QPen::setDashPattern(const QVector<qreal> &pattern) -

167 { -

168 if (pattern.isEmpty()) -

169 return; -

170 detach(); -

171 -

172 QPenData *dd = static_cast<QPenData *>(d); -

173 dd->dashPattern = pattern; -

174 d->style = Qt::CustomDashLine; -

175 -

176 if ((dd->dashPattern.size() % 2) == 1) { -

177 QMessageLogger(__FILE__, 525531, __PRETTY_FUNCTION__).warning("QPen::setDashPattern: Pattern not of even length"); -

178 dd->dashPattern << 1; -

179 } -

180 } -

181 -

182 -

183 -

184 -

185 -

186 -

187 -

188 qreal QPen::dashOffset() const -

189 { -

190 QPenData *dd = static_cast<QPenData *>(d); -

191 return dd->dashOffset; -

192 } -

193 void QPen::setDashOffset(qreal offset) -

194 { -

195 if (qFuzzyCompare(offset, static_cast<QPenData *>(d)->dashOffset)) -

196 return; -

197 detach(); -

198 QPenData *dd = static_cast<QPenData *>(d); -

199 dd->dashOffset = offset; -

200 if (d->style != Qt::CustomDashLine) { -

201 dd->dashPattern = dashPattern(); -

202 d->style = Qt::CustomDashLine; -

203 } -

204 } -

205 -

206 -

207 -

208 -

209 -

210 -

211 -

212 qreal QPen::miterLimit() const -

213 { -

214 const QPenData *dd = static_cast<QPenData *>(d); -

215 return dd->miterLimit; -

216 } -

217 void QPen::setMiterLimit(qreal limit) -

218 { -

219 detach(); -

220 QPenData *dd = static_cast<QPenData *>(d); -

221 dd->miterLimit = limit; -

222 } -

223 int QPen::width() const -

224 { -

225 return qRound(d->width); -

226 } -

227 qreal QPen::widthF() const -

228 { -

229 return d->width; -

230 } -

231 void QPen::setWidth(int width) -

232 { -

233 if (width < 0) -

234 QMessageLogger(__FILE__, 651657, __PRETTY_FUNCTION__).warning("QPen::setWidth: Setting a pen width with a negative value is not defined"); -

235 if ((qreal)width == d->width) -

236 return; -

237 detach(); -

238 d->width = width; -

239 } -

240 void QPen::setWidthF(qreal width) -

241 { -

242 if (width < 0.f) { -

243 QMessageLogger(__FILE__, 675681, __PRETTY_FUNCTION__).warning("QPen::setWidthF: Setting a pen width with a negative value is not defined"); -

244 return; -

245 } -

246 if (qAbs(d->width - width) < 0.00000001f) -

247 return; -

248 detach(); -

249 d->width = width; -

250 d->defaultWidth = false; -

251 } -

252 -

253 -

254 -

255 -

256 -

257 -

258 -

259 Qt::PenCapStyle QPen::capStyle() const -

260 { -

261 return d->capStyle; -

262 } -

263 void QPen::setCapStyle(Qt::PenCapStyle c) -

264 { -

265 if (d->capStyle == c) -

266 return; -

267 detach(); -

268 d->capStyle = c; -

269 } -

270 -

271 -

272 -

273 -

274 -

275 -

276 Qt::PenJoinStyle QPen::joinStyle() const -

277 { -

278 return d->joinStyle; -

279 } -

280 void QPen::setJoinStyle(Qt::PenJoinStyle j) -

281 { -

282 if (d->joinStyle == j) -

283 return; -

284 detach(); -

285 d->joinStyle = j; -

286 } -

287 QColor QPen::color() const -

288 { -

289 return d->brush.color(); -

290 } -

291 void QPen::setColor(const QColor &c) -

292 { -

293 detach(); -

294 d->brush = QBrush(c); -

295 } -

296 -

297 -

298 -

299 -

300 -

301 QBrush QPen::brush() const -

302 { -

303 return d->brush; -

304 } -

305 -

306 -

307 -

308 -

309 -

310 -

311 -

312 void QPen::setBrush(const QBrush &brush) -

313 { -

314 detach(); -

315 d->brush = brush; -

316 } -

317 -

318 -

319 -

320 -

321 -

322 -

323 -

324 bool QPen::isSolid() const -

325 { -

326 return d->brush.style() == Qt::SolidPattern; -

327 } -

328 bool QPen::isCosmetic() const -

329 { -

330 QPenData *dd = static_cast<QPenData *>(d); -

331 return (dd->cosmetic == true) || d->width == 0; -

332 } -

333 void QPen::setCosmetic(bool cosmetic) -

334 { -

335 detach(); -

336 QPenData *dd = static_cast<QPenData *>(d); -

337 dd->cosmetic = cosmetic; -

338 } -

339 bool QPen::operator==(const QPen &p) const -

340 { -

341 QPenData *dd = static_cast<QPenData *>(d); -

342 QPenData *pdd = static_cast<QPenData *>(p.d); -

343 return (p.d == d) -

344 || (p.d->style == d->style -

345 && p.d->capStyle == d->capStyle -

346 && p.d->joinStyle == d->joinStyle -

347 && p.d->width == d->width -

348 && pdd->miterLimit == dd->miterLimit -

349 && (d->style != Qt::CustomDashLine -

350 || (qFuzzyCompare(pdd->dashOffset, dd->dashOffset) && -

351 pdd->dashPattern == dd->dashPattern)) -

352 && p.d->brush == d->brush -

353 && pdd->cosmetic == dd->cosmetic -

354 && pdd->defaultWidth == dd->defaultWidth); -

355 } -

356 bool QPen::isDetached() -

357 { -

358 return d->ref.load() == 1; -

359 } -

360 QDataStream &operator<<(QDataStream &s, const QPen &p) -

361 { -

362 QPenData *dd = static_cast<QPenData *>(p.d); -

363 if (s.version() < 3) { -

364 s << (quint8)p.style(); -

365 } else if (s.version() < QDataStream::Qt_4_3) { -

366 s << (quint8)(p.style() | p.capStyle() | p.joinStyle()); -

367 } else { -

368 s << (quint16)(p.style() | p.capStyle() | p.joinStyle()); -

369 s << (bool)(dd->cosmetic); -

370 } -

371 -

372 if (s.version() < 7) { -

373 s << (quint8)p.width(); -

374 s << p.color(); -

375 } else { -

376 s << double(p.widthF()); -

377 s << p.brush(); -

378 s << double(p.miterLimit()); -

379 if (sizeof(qreal) == sizeof(double)) { -

380 s << p.dashPattern(); -

381 } else { -

382 -

383 -

384 -

385 QVector<qreal> pattern = p.dashPattern(); -

386 s << quint32(pattern.size()); -

387 for (int i = 0; i < pattern.size(); ++i) -

388 s << double(pattern.at(i)); -

389 } -

390 if (s.version() >= 9) -

391 s << double(p.dashOffset()); -

392 if (s.version() >= QDataStream::Qt_5_0) -

393 s << bool(dd->defaultWidth); -

394 } -

395 return s; -

396 } -

397 QDataStream &operator>>(QDataStream &s, QPen &p) -

398 { -

399 quint16 style; -

400 quint8 width8 = 0; -

401 double width = 0; -

402 QColor color; -

403 QBrush brush; -

404 double miterLimit = 2; -

405 QVector<qreal> dashPattern; -

406 double dashOffset = 0; -

407 bool cosmetic = false; -

408 bool defaultWidth = false; -

409 if (s.version() < QDataStream::Qt_4_3) { -

410 quint8 style8; -

411 s >> style8; -

412 style = style8; -

413 } else { -

414 s >> style; -

415 s >> cosmetic; -

416 } -

417 if (s.version() < 7) { -

418 s >> width8; -

419 s >> color; -

420 brush = color; -

421 width = width8; -

422 } else { -

423 s >> width; -

424 s >> brush; -

425 s >> miterLimit; -

426 if (sizeof(qreal) == sizeof(double)) { -

427 s >> dashPattern; -

428 } else { -

429 quint32 numDashes; -

430 s >> numDashes; -

431 double dash; -

432 dashPattern.reserve(numDashes); -

433 for (quint32 i = 0; i < numDashes; ++i) { -

434 s >> dash; -

435 dashPattern << dash; -

436 } -

437 } -

438 if (s.version() >= 9) -

439 s >> dashOffset; -

440 } -

441 -

442 if (s.version() >= QDataStream::Qt_5_0) { -

443 s >> defaultWidth; -

444 } else { -

445 -

446 defaultWidth = qFuzzyIsNull(width); -

447 } -

448 -

449 p.detach(); -

450 QPenData *dd = static_cast<QPenData *>(p.d); -

451 dd->width = width; -

452 dd->brush = brush; -

453 dd->style = Qt::PenStyle(style & Qt::MPenStyle); -

454 dd->capStyle = Qt::PenCapStyle(style & Qt::MPenCapStyle); -

455 dd->joinStyle = Qt::PenJoinStyle(style & Qt::MPenJoinStyle); -

456 dd->dashPattern = dashPattern; -

457 dd->miterLimit = miterLimit; -

458 dd->dashOffset = dashOffset; -

459 dd->cosmetic = cosmetic; -

460 dd->defaultWidth = defaultWidth; -

461 -

462 return s; -

463 } -

464 -

465 -

466 -

467 QDebug operator<<(QDebug dbg, const QPen &p) -

468 { -

469 const char *PEN_STYLES[] = { -

470 "NoPen", -

471 "SolidLine", -

472 "DashLine", -

473 "DotLine", -

474 "DashDotLine", -

475 "DashDotDotLine", -

476 "CustomDashLine" -

477 }; -

478 -

479 QDebugStateSaver saver(dbg); -

480 dbg.nospace() << "QPen(" << p.width() << ',' << p.brush() -

481 << ',' << PEN_STYLES[p.style()] << ',' << int(p.capStyle()) -

482 << ',' << int(p.joinStyle()) << ',' << p.dashPattern() -

483 << ',' << p.dashOffset() -

484 << ',' << p.miterLimit() << ')'; -

485 return dbg; -

486 } -

487 -

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