| 1 | /**************************************************************************** | 
| 2 | ** | 
| 3 | ** Copyright (C) 2016 The Qt Company Ltd. | 
| 4 | ** Contact: https://www.qt.io/licensing/ | 
| 5 | ** | 
| 6 | ** This file is part of the Qt Charts module of the Qt Toolkit. | 
| 7 | ** | 
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| 19 | ** General Public License version 3 or (at your option) any later version | 
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| 28 | ****************************************************************************/ | 
| 29 |  | 
| 30 | #include <QtCharts/QCandlestickModelMapper> | 
| 31 | #include <QtCharts/QCandlestickSeries> | 
| 32 | #include <QtCharts/QCandlestickSet> | 
| 33 | #include <QtCore/QAbstractItemModel> | 
| 34 | #include <private/qcandlestickmodelmapper_p.h> | 
| 35 |  | 
| 36 | #include <algorithm> | 
| 37 |  | 
| 38 | QT_CHARTS_BEGIN_NAMESPACE | 
| 39 |  | 
| 40 | /*! | 
| 41 |     \class QCandlestickModelMapper | 
| 42 |     \since 5.8 | 
| 43 |     \inmodule QtCharts | 
| 44 |     \brief Abstract model mapper class for candlestick series. | 
| 45 |  | 
| 46 |     Model mappers allow the use of a QAbstractItemModel-derived model as a data source for a chart | 
| 47 |     series, creating a connection between a QCandlestickSeries and the model object. A model mapper | 
| 48 |     maintains an equal size across all \l {QCandlestickSet} {QCandlestickSets}. | 
| 49 |  | 
| 50 |     \note The model used must support adding and removing rows/columns and modifying the data of the | 
| 51 |     cells. | 
| 52 | */ | 
| 53 |  | 
| 54 | /*! | 
| 55 |     \property QCandlestickModelMapper::model | 
| 56 |     \brief Defines the model that is used by the mapper. | 
| 57 | */ | 
| 58 |  | 
| 59 | /*! | 
| 60 |     \property QCandlestickModelMapper::series | 
| 61 |     \brief Defines the QCandlestickSeries object that is used by the mapper. | 
| 62 |  | 
| 63 |     \note All data in the series is discarded when it is set to the mapper. When a new series is | 
| 64 |     specified, the old series is disconnected (preserving its data). | 
| 65 | */ | 
| 66 |  | 
| 67 | /*! | 
| 68 |     \fn Qt::Orientation QCandlestickModelMapper::orientation() const | 
| 69 |     Returns the orientation that is used when QCandlestickModelMapper accesses the model. This | 
| 70 |     determines whether the consecutive values of the set are read from rows (Qt::Horizontal) or from | 
| 71 |     columns (Qt::Vertical). | 
| 72 | */ | 
| 73 |  | 
| 74 | /*! | 
| 75 |     \fn void QCandlestickModelMapper::modelReplaced() | 
| 76 |     \brief Emitted when the model, to which the mapper is connected, has changed. | 
| 77 |     \sa model | 
| 78 | */ | 
| 79 |  | 
| 80 | /*! | 
| 81 |     \fn void QCandlestickModelMapper::seriesReplaced() | 
| 82 |     \brief Emitted when the series to which mapper is connected to has changed. | 
| 83 |     \sa series | 
| 84 | */ | 
| 85 |  | 
| 86 | /*! | 
| 87 |     Constructs a model mapper object as a child of \a parent. | 
| 88 | */ | 
| 89 | QCandlestickModelMapper::QCandlestickModelMapper(QObject *parent) | 
| 90 |     : QObject(parent), | 
| 91 |       d_ptr(new QCandlestickModelMapperPrivate(this)) | 
| 92 | { | 
| 93 | } | 
| 94 |  | 
| 95 | void QCandlestickModelMapper::setModel(QAbstractItemModel *model) | 
| 96 | { | 
| 97 |     Q_D(QCandlestickModelMapper); | 
| 98 |  | 
| 99 |     if (d->m_model == model) | 
| 100 |         return; | 
| 101 |  | 
| 102 |     if (d->m_model) | 
| 103 |         disconnect(sender: d->m_model, signal: 0, receiver: d, member: 0); | 
| 104 |  | 
| 105 |     d->m_model = model; | 
| 106 |     emit modelReplaced(); | 
| 107 |  | 
| 108 |     if (!d->m_model) | 
| 109 |         return; | 
| 110 |  | 
| 111 |     d->initializeCandlestickFromModel(); | 
| 112 |     // connect signals from the model | 
| 113 |     connect(sender: d->m_model, SIGNAL(modelReset()), receiver: d, SLOT(initializeCandlestickFromModel())); | 
| 114 |     connect(sender: d->m_model, SIGNAL(dataChanged(QModelIndex, QModelIndex)), | 
| 115 |             receiver: d, SLOT(modelDataUpdated(QModelIndex, QModelIndex))); | 
| 116 |     connect(sender: d->m_model, SIGNAL(headerDataChanged(Qt::Orientation, int, int)), | 
| 117 |             receiver: d, SLOT(modelHeaderDataUpdated(Qt::Orientation, int, int))); | 
| 118 |     connect(sender: d->m_model, SIGNAL(rowsInserted(QModelIndex, int, int)), | 
| 119 |             receiver: d, SLOT(modelRowsInserted(QModelIndex, int, int))); | 
| 120 |     connect(sender: d->m_model, SIGNAL(rowsRemoved(QModelIndex, int, int)), | 
| 121 |             receiver: d, SLOT(modelRowsRemoved(QModelIndex, int, int))); | 
| 122 |     connect(sender: d->m_model, SIGNAL(columnsInserted(QModelIndex, int, int)), | 
| 123 |             receiver: d, SLOT(modelColumnsInserted(QModelIndex, int, int))); | 
| 124 |     connect(sender: d->m_model, SIGNAL(columnsRemoved(QModelIndex, int, int)), | 
| 125 |             receiver: d, SLOT(modelColumnsRemoved(QModelIndex, int, int))); | 
| 126 |     connect(sender: d->m_model, SIGNAL(destroyed()), receiver: d, SLOT(modelDestroyed())); | 
| 127 | } | 
| 128 |  | 
| 129 | QAbstractItemModel *QCandlestickModelMapper::model() const | 
| 130 | { | 
| 131 |     Q_D(const QCandlestickModelMapper); | 
| 132 |  | 
| 133 |     return d->m_model; | 
| 134 | } | 
| 135 |  | 
| 136 | void QCandlestickModelMapper::setSeries(QCandlestickSeries *series) | 
| 137 | { | 
| 138 |     Q_D(QCandlestickModelMapper); | 
| 139 |  | 
| 140 |     if (d->m_series == series) | 
| 141 |         return; | 
| 142 |  | 
| 143 |     if (d->m_series) | 
| 144 |         disconnect(sender: d->m_series, signal: 0, receiver: d, member: 0); | 
| 145 |  | 
| 146 |     d->m_series = series; | 
| 147 |     emit seriesReplaced(); | 
| 148 |  | 
| 149 |     if (!d->m_series) | 
| 150 |         return; | 
| 151 |  | 
| 152 |     d->initializeCandlestickFromModel(); | 
| 153 |     // connect the signals from the series | 
| 154 |     connect(sender: d->m_series, SIGNAL(candlestickSetsAdded(QList<QCandlestickSet *>)), | 
| 155 |             receiver: d, SLOT(candlestickSetsAdded(QList<QCandlestickSet *>))); | 
| 156 |     connect(sender: d->m_series, SIGNAL(candlestickSetsRemoved(QList<QCandlestickSet*>)), | 
| 157 |             receiver: d, SLOT(candlestickSetsRemoved(QList<QCandlestickSet *>))); | 
| 158 |     connect(sender: d->m_series, SIGNAL(destroyed()), receiver: d, SLOT(seriesDestroyed())); | 
| 159 | } | 
| 160 |  | 
| 161 | QCandlestickSeries *QCandlestickModelMapper::series() const | 
| 162 | { | 
| 163 |     Q_D(const QCandlestickModelMapper); | 
| 164 |  | 
| 165 |     return d->m_series; | 
| 166 | } | 
| 167 |  | 
| 168 | /*! | 
| 169 |     Sets the row/column of the model that contains the \a timestamp values of the sets in the | 
| 170 |     series. Default value is -1 (invalid mapping). | 
| 171 | */ | 
| 172 | void QCandlestickModelMapper::setTimestamp(int timestamp) | 
| 173 | { | 
| 174 |     Q_D(QCandlestickModelMapper); | 
| 175 |  | 
| 176 |     timestamp = qMax(a: timestamp, b: -1); | 
| 177 |  | 
| 178 |     if (d->m_timestamp == timestamp) | 
| 179 |         return; | 
| 180 |  | 
| 181 |     d->m_timestamp = timestamp; | 
| 182 |     emit d->timestampChanged(); | 
| 183 |     d->initializeCandlestickFromModel(); | 
| 184 | } | 
| 185 |  | 
| 186 | /*! | 
| 187 |     Returns the row/column of the model that contains the timestamp values of the sets in the | 
| 188 |     series. Default value is -1 (invalid mapping). | 
| 189 | */ | 
| 190 | int QCandlestickModelMapper::timestamp() const | 
| 191 | { | 
| 192 |     Q_D(const QCandlestickModelMapper); | 
| 193 |  | 
| 194 |     return d->m_timestamp; | 
| 195 | } | 
| 196 |  | 
| 197 | /*! | 
| 198 |     Sets the row/column of the model that contains the \a open values of the sets in the series. | 
| 199 |     Default value is -1 (invalid mapping). | 
| 200 | */ | 
| 201 | void QCandlestickModelMapper::setOpen(int open) | 
| 202 | { | 
| 203 |     Q_D(QCandlestickModelMapper); | 
| 204 |  | 
| 205 |     open = qMax(a: open, b: -1); | 
| 206 |  | 
| 207 |     if (d->m_open == open) | 
| 208 |         return; | 
| 209 |  | 
| 210 |     d->m_open = open; | 
| 211 |     emit d->openChanged(); | 
| 212 |     d->initializeCandlestickFromModel(); | 
| 213 | } | 
| 214 |  | 
| 215 | /*! | 
| 216 |     Returns the row/column of the model that contains the open values of the sets in the series. | 
| 217 |     Default value is -1 (invalid mapping). | 
| 218 | */ | 
| 219 | int QCandlestickModelMapper::open() const | 
| 220 | { | 
| 221 |     Q_D(const QCandlestickModelMapper); | 
| 222 |  | 
| 223 |     return d->m_open; | 
| 224 | } | 
| 225 |  | 
| 226 | /*! | 
| 227 |     Sets the row/column of the model that contains the \a high values of the sets in the series. | 
| 228 |     Default value is -1 (invalid mapping). | 
| 229 | */ | 
| 230 | void QCandlestickModelMapper::setHigh(int high) | 
| 231 | { | 
| 232 |     Q_D(QCandlestickModelMapper); | 
| 233 |  | 
| 234 |     high = qMax(a: high, b: -1); | 
| 235 |  | 
| 236 |     if (d->m_high == high) | 
| 237 |         return; | 
| 238 |  | 
| 239 |     d->m_high = high; | 
| 240 |     emit d->highChanged(); | 
| 241 |     d->initializeCandlestickFromModel(); | 
| 242 | } | 
| 243 |  | 
| 244 | /*! | 
| 245 |     Returns the row/column of the model that contains the high values of the sets in the series. | 
| 246 |     Default value is -1 (invalid mapping). | 
| 247 | */ | 
| 248 | int QCandlestickModelMapper::high() const | 
| 249 | { | 
| 250 |     Q_D(const QCandlestickModelMapper); | 
| 251 |  | 
| 252 |     return d->m_high; | 
| 253 | } | 
| 254 |  | 
| 255 | /*! | 
| 256 |     Sets the row/column of the model that contains the \a low values of the sets in the series. | 
| 257 |     Default value is -1 (invalid mapping). | 
| 258 | */ | 
| 259 | void QCandlestickModelMapper::setLow(int low) | 
| 260 | { | 
| 261 |     Q_D(QCandlestickModelMapper); | 
| 262 |  | 
| 263 |     low = qMax(a: low, b: -1); | 
| 264 |  | 
| 265 |     if (d->m_low == low) | 
| 266 |         return; | 
| 267 |  | 
| 268 |     d->m_low = low; | 
| 269 |     emit d->lowChanged(); | 
| 270 |     d->initializeCandlestickFromModel(); | 
| 271 | } | 
| 272 |  | 
| 273 | /*! | 
| 274 |     Returns the row/column of the model that contains the low values of the sets in the series. | 
| 275 |     Default value is -1 (invalid mapping). | 
| 276 | */ | 
| 277 | int QCandlestickModelMapper::low() const | 
| 278 | { | 
| 279 |     Q_D(const QCandlestickModelMapper); | 
| 280 |  | 
| 281 |     return d->m_low; | 
| 282 | } | 
| 283 |  | 
| 284 | /*! | 
| 285 |     Sets the row/column of the model that contains the \a close values of the sets in the series. | 
| 286 |     Default value is -1 (invalid mapping). | 
| 287 | */ | 
| 288 | void QCandlestickModelMapper::setClose(int close) | 
| 289 | { | 
| 290 |     Q_D(QCandlestickModelMapper); | 
| 291 |  | 
| 292 |     close = qMax(a: close, b: -1); | 
| 293 |  | 
| 294 |     if (d->m_close == close) | 
| 295 |         return; | 
| 296 |  | 
| 297 |     d->m_close = close; | 
| 298 |     emit d->closeChanged(); | 
| 299 |     d->initializeCandlestickFromModel(); | 
| 300 | } | 
| 301 |  | 
| 302 | /*! | 
| 303 |     Returns the row/column of the model that contains the close values of the sets in the series. | 
| 304 |     Default value is -1 (invalid mapping). | 
| 305 | */ | 
| 306 | int QCandlestickModelMapper::close() const | 
| 307 | { | 
| 308 |     Q_D(const QCandlestickModelMapper); | 
| 309 |  | 
| 310 |     return d->m_close; | 
| 311 | } | 
| 312 |  | 
| 313 | /*! | 
| 314 |     Sets the section of the model that is used as the data source for the first candlestick set. | 
| 315 |     Parameter \a firstSetSection specifies the section of the model. Default value is -1. | 
| 316 | */ | 
| 317 | void QCandlestickModelMapper::setFirstSetSection(int firstSetSection) | 
| 318 | { | 
| 319 |     Q_D(QCandlestickModelMapper); | 
| 320 |  | 
| 321 |     firstSetSection = qMax(a: firstSetSection, b: -1); | 
| 322 |  | 
| 323 |     if (d->m_firstSetSection == firstSetSection) | 
| 324 |         return; | 
| 325 |  | 
| 326 |     d->m_firstSetSection = firstSetSection; | 
| 327 |     emit d->firstSetSectionChanged(); | 
| 328 |     d->initializeCandlestickFromModel(); | 
| 329 | } | 
| 330 |  | 
| 331 | /*! | 
| 332 |     Returns the section of the model that is used as the data source for the first candlestick set. | 
| 333 |     Default value is -1 (invalid mapping). | 
| 334 | */ | 
| 335 | int QCandlestickModelMapper::firstSetSection() const | 
| 336 | { | 
| 337 |     Q_D(const QCandlestickModelMapper); | 
| 338 |  | 
| 339 |     return d->m_firstSetSection; | 
| 340 | } | 
| 341 |  | 
| 342 | /*! | 
| 343 |     Sets the section of the model that is used as the data source for the last candlestick set. | 
| 344 |     Parameter \a lastSetSection specifies the section of the model. Default value is -1. | 
| 345 | */ | 
| 346 | void QCandlestickModelMapper::setLastSetSection(int lastSetSection) | 
| 347 | { | 
| 348 |     Q_D(QCandlestickModelMapper); | 
| 349 |  | 
| 350 |     lastSetSection = qMax(a: lastSetSection, b: -1); | 
| 351 |  | 
| 352 |     if (d->m_lastSetSection == lastSetSection) | 
| 353 |         return; | 
| 354 |  | 
| 355 |     d->m_lastSetSection = lastSetSection; | 
| 356 |     emit d->lastSetSectionChanged(); | 
| 357 |     d->initializeCandlestickFromModel(); | 
| 358 | } | 
| 359 |  | 
| 360 | /*! | 
| 361 |     Returns the section of the model that is used as the data source for the last candlestick set. | 
| 362 |     Default value is -1 (invalid mapping). | 
| 363 | */ | 
| 364 | int QCandlestickModelMapper::lastSetSection() const | 
| 365 | { | 
| 366 |     Q_D(const QCandlestickModelMapper); | 
| 367 |  | 
| 368 |     return d->m_lastSetSection; | 
| 369 | } | 
| 370 |  | 
| 371 | //////////////////////////////////////////////////////////////////////////////////////////////////// | 
| 372 |  | 
| 373 | QCandlestickModelMapperPrivate::QCandlestickModelMapperPrivate(QCandlestickModelMapper *q) | 
| 374 |     : QObject(q), | 
| 375 |       m_model(nullptr), | 
| 376 |       m_series(nullptr), | 
| 377 |       m_timestamp(-1), | 
| 378 |       m_open(-1), | 
| 379 |       m_high(-1), | 
| 380 |       m_low(-1), | 
| 381 |       m_close(-1), | 
| 382 |       m_firstSetSection(-1), | 
| 383 |       m_lastSetSection(-1), | 
| 384 |       m_modelSignalsBlock(false), | 
| 385 |       m_seriesSignalsBlock(false), | 
| 386 |       q_ptr(q) | 
| 387 | { | 
| 388 | } | 
| 389 |  | 
| 390 | void QCandlestickModelMapperPrivate::initializeCandlestickFromModel() | 
| 391 | { | 
| 392 |     if (!m_model || !m_series) | 
| 393 |         return; | 
| 394 |  | 
| 395 |     blockSeriesSignals(); | 
| 396 |     // clear current content | 
| 397 |     m_series->clear(); | 
| 398 |     m_sets.clear(); | 
| 399 |  | 
| 400 |     // create the initial candlestick sets | 
| 401 |     QList<QCandlestickSet *> sets; | 
| 402 |     for (int i = m_firstSetSection; i <= m_lastSetSection; ++i) { | 
| 403 |         QModelIndex timestampIndex = candlestickModelIndex(section: i, pos: m_timestamp); | 
| 404 |         QModelIndex openIndex = candlestickModelIndex(section: i, pos: m_open); | 
| 405 |         QModelIndex highIndex = candlestickModelIndex(section: i, pos: m_high); | 
| 406 |         QModelIndex lowIndex = candlestickModelIndex(section: i, pos: m_low); | 
| 407 |         QModelIndex closeIndex = candlestickModelIndex(section: i, pos: m_close); | 
| 408 |         if (timestampIndex.isValid() | 
| 409 |             && openIndex.isValid() | 
| 410 |             && highIndex.isValid() | 
| 411 |             && lowIndex.isValid() | 
| 412 |             && closeIndex.isValid()) { | 
| 413 |             QCandlestickSet *set = new QCandlestickSet(); | 
| 414 |             set->setTimestamp(m_model->data(index: timestampIndex, role: Qt::DisplayRole).toReal()); | 
| 415 |             set->setOpen(m_model->data(index: openIndex, role: Qt::DisplayRole).toReal()); | 
| 416 |             set->setHigh(m_model->data(index: highIndex, role: Qt::DisplayRole).toReal()); | 
| 417 |             set->setLow(m_model->data(index: lowIndex, role: Qt::DisplayRole).toReal()); | 
| 418 |             set->setClose(m_model->data(index: closeIndex, role: Qt::DisplayRole).toReal()); | 
| 419 |  | 
| 420 |             connect(sender: set, SIGNAL(timestampChanged()), receiver: this, SLOT(candlestickSetChanged())); | 
| 421 |             connect(sender: set, SIGNAL(openChanged()), receiver: this, SLOT(candlestickSetChanged())); | 
| 422 |             connect(sender: set, SIGNAL(highChanged()), receiver: this, SLOT(candlestickSetChanged())); | 
| 423 |             connect(sender: set, SIGNAL(lowChanged()), receiver: this, SLOT(candlestickSetChanged())); | 
| 424 |             connect(sender: set, SIGNAL(closeChanged()), receiver: this, SLOT(candlestickSetChanged())); | 
| 425 |  | 
| 426 |             sets.append(t: set); | 
| 427 |         } else { | 
| 428 |             break; | 
| 429 |         } | 
| 430 |     } | 
| 431 |     m_series->append(sets); | 
| 432 |     m_sets.append(t: sets); | 
| 433 |     blockSeriesSignals(block: false); | 
| 434 | } | 
| 435 |  | 
| 436 | void QCandlestickModelMapperPrivate::modelDataUpdated(QModelIndex topLeft, QModelIndex bottomRight) | 
| 437 | { | 
| 438 |     Q_Q(QCandlestickModelMapper); | 
| 439 |  | 
| 440 |     if (!m_model || !m_series) | 
| 441 |         return; | 
| 442 |  | 
| 443 |     if (m_modelSignalsBlock) | 
| 444 |         return; | 
| 445 |  | 
| 446 |     blockSeriesSignals(); | 
| 447 |     QModelIndex index; | 
| 448 |     for (int row = topLeft.row(); row <= bottomRight.row(); ++row) { | 
| 449 |         for (int column = topLeft.column(); column <= bottomRight.column(); ++column) { | 
| 450 |             index = topLeft.sibling(arow: row, acolumn: column); | 
| 451 |             QCandlestickSet *set = candlestickSet(index); | 
| 452 |             if (set) { | 
| 453 |                 int pos = (q->orientation() == Qt::Vertical) ? row : column; | 
| 454 |                 if (pos == m_timestamp) | 
| 455 |                     set->setTimestamp(m_model->data(index).toReal()); | 
| 456 |                 else if (pos == m_open) | 
| 457 |                     set->setOpen(m_model->data(index).toReal()); | 
| 458 |                 else if (pos == m_high) | 
| 459 |                     set->setHigh(m_model->data(index).toReal()); | 
| 460 |                 else if (pos == m_low) | 
| 461 |                     set->setLow(m_model->data(index).toReal()); | 
| 462 |                 else if (pos == m_close) | 
| 463 |                     set->setClose(m_model->data(index).toReal()); | 
| 464 |             } | 
| 465 |         } | 
| 466 |     } | 
| 467 |     blockSeriesSignals(block: false); | 
| 468 | } | 
| 469 |  | 
| 470 | void QCandlestickModelMapperPrivate::modelHeaderDataUpdated(Qt::Orientation orientation, int first, | 
| 471 |                                                             int last) | 
| 472 | { | 
| 473 |     Q_UNUSED(orientation); | 
| 474 |     Q_UNUSED(first); | 
| 475 |     Q_UNUSED(last); | 
| 476 | } | 
| 477 |  | 
| 478 | void QCandlestickModelMapperPrivate::modelRowsInserted(QModelIndex parent, int start, int end) | 
| 479 | { | 
| 480 |     Q_UNUSED(parent) | 
| 481 |  | 
| 482 |     Q_Q(QCandlestickModelMapper); | 
| 483 |  | 
| 484 |     if (m_modelSignalsBlock) | 
| 485 |         return; | 
| 486 |  | 
| 487 |     blockSeriesSignals(); | 
| 488 |     if (q->orientation() == Qt::Vertical) | 
| 489 |         insertData(start, end); | 
| 490 |     else if (start <= m_firstSetSection || start <= m_lastSetSection) | 
| 491 |         initializeCandlestickFromModel();  // if the changes affect the map - reinitialize | 
| 492 |     blockSeriesSignals(block: false); | 
| 493 | } | 
| 494 |  | 
| 495 | void QCandlestickModelMapperPrivate::modelRowsRemoved(QModelIndex parent, int start, int end) | 
| 496 | { | 
| 497 |     Q_UNUSED(parent) | 
| 498 |  | 
| 499 |     Q_Q(QCandlestickModelMapper); | 
| 500 |  | 
| 501 |     if (m_modelSignalsBlock) | 
| 502 |         return; | 
| 503 |  | 
| 504 |     blockSeriesSignals(); | 
| 505 |     if (q->orientation() == Qt::Vertical) | 
| 506 |         removeData(start, end); | 
| 507 |     else if (start <= m_firstSetSection || start <= m_lastSetSection) | 
| 508 |         initializeCandlestickFromModel();  // if the changes affect the map - reinitialize | 
| 509 |     blockSeriesSignals(block: false); | 
| 510 | } | 
| 511 |  | 
| 512 | void QCandlestickModelMapperPrivate::modelColumnsInserted(QModelIndex parent, int start, int end) | 
| 513 | { | 
| 514 |     Q_UNUSED(parent) | 
| 515 |  | 
| 516 |     Q_Q(QCandlestickModelMapper); | 
| 517 |  | 
| 518 |     if (m_modelSignalsBlock) | 
| 519 |         return; | 
| 520 |  | 
| 521 |     blockSeriesSignals(); | 
| 522 |     if (q->orientation() == Qt::Horizontal) | 
| 523 |         insertData(start, end); | 
| 524 |     else if (start <= m_firstSetSection || start <= m_lastSetSection) | 
| 525 |         initializeCandlestickFromModel();  // if the changes affect the map - reinitialize | 
| 526 |     blockSeriesSignals(block: false); | 
| 527 | } | 
| 528 |  | 
| 529 | void QCandlestickModelMapperPrivate::modelColumnsRemoved(QModelIndex parent, int start, int end) | 
| 530 | { | 
| 531 |     Q_UNUSED(parent) | 
| 532 |  | 
| 533 |     Q_Q(QCandlestickModelMapper); | 
| 534 |  | 
| 535 |     if (m_modelSignalsBlock) | 
| 536 |         return; | 
| 537 |  | 
| 538 |     blockSeriesSignals(); | 
| 539 |     if (q->orientation() == Qt::Horizontal) | 
| 540 |         removeData(start, end); | 
| 541 |     else if (start <= m_firstSetSection || start <= m_lastSetSection) | 
| 542 |         initializeCandlestickFromModel();  // if the changes affect the map - reinitialize | 
| 543 |     blockSeriesSignals(block: false); | 
| 544 | } | 
| 545 |  | 
| 546 | void QCandlestickModelMapperPrivate::modelDestroyed() | 
| 547 | { | 
| 548 |     m_model = 0; | 
| 549 | } | 
| 550 |  | 
| 551 | void QCandlestickModelMapperPrivate::candlestickSetsAdded(const QList<QCandlestickSet *> &sets) | 
| 552 | { | 
| 553 |     Q_Q(QCandlestickModelMapper); | 
| 554 |  | 
| 555 |     if (m_seriesSignalsBlock) | 
| 556 |         return; | 
| 557 |  | 
| 558 |     if (sets.isEmpty()) | 
| 559 |         return; | 
| 560 |  | 
| 561 |     int firstIndex = m_series->sets().indexOf(t: sets.at(i: 0)); | 
| 562 |     if (firstIndex == -1) | 
| 563 |         return; | 
| 564 |  | 
| 565 |     m_lastSetSection += sets.count(); | 
| 566 |  | 
| 567 |     blockModelSignals(); | 
| 568 |     if (q->orientation() == Qt::Vertical) | 
| 569 |         m_model->insertColumns(column: firstIndex + m_firstSetSection, count: sets.count()); | 
| 570 |     else | 
| 571 |         m_model->insertRows(row: firstIndex + m_firstSetSection, count: sets.count()); | 
| 572 |  | 
| 573 |     for (int i = 0; i < sets.count(); ++i) { | 
| 574 |         int section = i + firstIndex + m_firstSetSection; | 
| 575 |         m_model->setData(index: candlestickModelIndex(section, pos: m_timestamp), value: sets.at(i)->timestamp()); | 
| 576 |         m_model->setData(index: candlestickModelIndex(section, pos: m_open), value: sets.at(i)->open()); | 
| 577 |         m_model->setData(index: candlestickModelIndex(section, pos: m_high), value: sets.at(i)->high()); | 
| 578 |         m_model->setData(index: candlestickModelIndex(section, pos: m_low), value: sets.at(i)->low()); | 
| 579 |         m_model->setData(index: candlestickModelIndex(section, pos: m_close), value: sets.at(i)->close()); | 
| 580 |     } | 
| 581 |     blockModelSignals(block: false); | 
| 582 |     initializeCandlestickFromModel(); | 
| 583 | } | 
| 584 |  | 
| 585 | void QCandlestickModelMapperPrivate::candlestickSetsRemoved(const QList<QCandlestickSet *> &sets) | 
| 586 | { | 
| 587 |     Q_Q(QCandlestickModelMapper); | 
| 588 |  | 
| 589 |     if (m_seriesSignalsBlock) | 
| 590 |         return; | 
| 591 |  | 
| 592 |     if (sets.isEmpty()) | 
| 593 |         return; | 
| 594 |  | 
| 595 |     QVector<int> removedIndices; | 
| 596 |     for (auto &set : sets) { | 
| 597 |         int index = m_sets.indexOf(t: set); | 
| 598 |         if (index != -1) | 
| 599 |             removedIndices << index; | 
| 600 |     } | 
| 601 |  | 
| 602 |     if (removedIndices.isEmpty()) | 
| 603 |         return; | 
| 604 |  | 
| 605 |     std::sort(first: removedIndices.begin(), last: removedIndices.end()); | 
| 606 |  | 
| 607 |     for (int i = removedIndices.size() - 1; i >= 0; --i) { | 
| 608 |         m_sets.removeAt(i: removedIndices[i]); | 
| 609 |         --m_lastSetSection; | 
| 610 |     } | 
| 611 |  | 
| 612 |     blockModelSignals(); | 
| 613 |  | 
| 614 |     // There is no guarantee removed sets are continuous, so remove them one by one | 
| 615 |     for (int i = removedIndices.size() - 1; i >= 0; --i) { | 
| 616 |         if (q->orientation() == Qt::Vertical) | 
| 617 |             m_model->removeColumns(column: removedIndices[i] + m_firstSetSection, count: 1); | 
| 618 |         else | 
| 619 |             m_model->removeRows(row: removedIndices[i] + m_firstSetSection, count: 1); | 
| 620 |     } | 
| 621 |  | 
| 622 |     blockModelSignals(block: false); | 
| 623 |     initializeCandlestickFromModel(); | 
| 624 | } | 
| 625 |  | 
| 626 | void QCandlestickModelMapperPrivate::candlestickSetChanged() | 
| 627 | { | 
| 628 |     if (m_seriesSignalsBlock) | 
| 629 |         return; | 
| 630 |  | 
| 631 |     QCandlestickSet *set = qobject_cast<QCandlestickSet *>(object: QObject::sender()); | 
| 632 |     if (!set) | 
| 633 |         return; | 
| 634 |  | 
| 635 |     int section = m_series->sets().indexOf(t: set); | 
| 636 |     if (section < 0) | 
| 637 |         return; | 
| 638 |  | 
| 639 |     section += m_firstSetSection; | 
| 640 |  | 
| 641 |     blockModelSignals(); | 
| 642 |     m_model->setData(index: candlestickModelIndex(section, pos: m_timestamp), value: set->timestamp()); | 
| 643 |     m_model->setData(index: candlestickModelIndex(section, pos: m_open), value: set->open()); | 
| 644 |     m_model->setData(index: candlestickModelIndex(section, pos: m_high), value: set->high()); | 
| 645 |     m_model->setData(index: candlestickModelIndex(section, pos: m_low), value: set->low()); | 
| 646 |     m_model->setData(index: candlestickModelIndex(section, pos: m_close), value: set->close()); | 
| 647 |     blockModelSignals(block: false); | 
| 648 | } | 
| 649 |  | 
| 650 | void QCandlestickModelMapperPrivate::seriesDestroyed() | 
| 651 | { | 
| 652 |     m_series = 0; | 
| 653 | } | 
| 654 |  | 
| 655 | QCandlestickSet *QCandlestickModelMapperPrivate::candlestickSet(QModelIndex index) | 
| 656 | { | 
| 657 |     Q_Q(QCandlestickModelMapper); | 
| 658 |  | 
| 659 |     if (!index.isValid()) | 
| 660 |         return 0; | 
| 661 |  | 
| 662 |     int section = (q->orientation() == Qt::Vertical) ? index.column() : index.row(); | 
| 663 |     int pos = (q->orientation() == Qt::Vertical) ? index.row() : index.column(); | 
| 664 |  | 
| 665 |     if (section < m_firstSetSection || section > m_lastSetSection) | 
| 666 |         return 0; // This part of model has not been mapped to any candlestick set. | 
| 667 |  | 
| 668 |     if (pos != m_timestamp && pos != m_open && pos != m_high && pos != m_low && pos != m_close) | 
| 669 |         return 0; // This part of model has not been mapped to any candlestick set. | 
| 670 |  | 
| 671 |     return m_series->sets().at(i: section - m_firstSetSection); | 
| 672 | } | 
| 673 |  | 
| 674 | QModelIndex QCandlestickModelMapperPrivate::candlestickModelIndex(int section, int pos) | 
| 675 | { | 
| 676 |     Q_Q(QCandlestickModelMapper); | 
| 677 |  | 
| 678 |     if (section < m_firstSetSection || section > m_lastSetSection) | 
| 679 |         return QModelIndex(); // invalid | 
| 680 |  | 
| 681 |     if (pos != m_timestamp && pos != m_open && pos != m_high && pos != m_low && pos != m_close) | 
| 682 |         return QModelIndex(); // invalid | 
| 683 |  | 
| 684 |     if (q->orientation() == Qt::Vertical) | 
| 685 |         return m_model->index(row: pos, column: section); | 
| 686 |     else | 
| 687 |         return m_model->index(row: section, column: pos); | 
| 688 | } | 
| 689 |  | 
| 690 | void QCandlestickModelMapperPrivate::insertData(int start, int end) | 
| 691 | { | 
| 692 |     Q_UNUSED(start) | 
| 693 |     Q_UNUSED(end) | 
| 694 |  | 
| 695 |     // Currently candlestickchart needs to be fully recalculated when change is made. | 
| 696 |     initializeCandlestickFromModel(); | 
| 697 | } | 
| 698 |  | 
| 699 | void QCandlestickModelMapperPrivate::removeData(int start, int end) | 
| 700 | { | 
| 701 |     Q_UNUSED(start) | 
| 702 |     Q_UNUSED(end) | 
| 703 |  | 
| 704 |     // Currently candlestickchart needs to be fully recalculated when change is made. | 
| 705 |     initializeCandlestickFromModel(); | 
| 706 | } | 
| 707 |  | 
| 708 | void QCandlestickModelMapperPrivate::blockModelSignals(bool block) | 
| 709 | { | 
| 710 |     m_modelSignalsBlock = block; | 
| 711 | } | 
| 712 |  | 
| 713 | void QCandlestickModelMapperPrivate::blockSeriesSignals(bool block) | 
| 714 | { | 
| 715 |     m_seriesSignalsBlock = block; | 
| 716 | } | 
| 717 |  | 
| 718 | QT_CHARTS_END_NAMESPACE | 
| 719 |  | 
| 720 | #include "moc_qcandlestickmodelmapper.cpp" | 
| 721 | #include "moc_qcandlestickmodelmapper_p.cpp" | 
| 722 |  |