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++ // Copyright (C) 2016 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++
++ #include <QtCharts/QBoxPlotModelMapper>
++ #include <private/qboxplotmodelmapper_p.h>
++ #include <QtCharts/QBoxPlotSeries>
++ #include <QtCharts/QBoxSet>
++ #include <QtCharts/QChart>
++ #include <QtCore/QAbstractItemModel>
++
++ QT_BEGIN_NAMESPACE
++
++ /*!
++ \class QBoxPlotModelMapper
++ \inmodule QtCharts
++ \brief The QBoxPlotModelMapper class is the base class for box plot model
++ mapper classes.
++ \internal
++
++ Model mappers enable using a data model derived from the QAbstractItemModel
++ class as a data source for a chart.
++ */
++
++ QBoxPlotModelMapper::QBoxPlotModelMapper(QObject *parent) :
++ QObject(parent),
++ d_ptr(new QBoxPlotModelMapperPrivate(this))
++ {
++ }
++
++ QAbstractItemModel *QBoxPlotModelMapper::model() const
++ {
++ Q_D(const QBoxPlotModelMapper);
++ return d->m_model;
++ }
++
++ void QBoxPlotModelMapper::setModel(QAbstractItemModel *model)
++ {
++ if (model == 0)
++ return;
++
++ Q_D(QBoxPlotModelMapper);
++ if (d->m_model)
++ disconnect(d->m_model, 0, d, 0);
++
++ d->m_model = model;
++ d->initializeBoxFromModel();
++ // connect signals from the model
++ connect(d->m_model, SIGNAL(modelReset()), d, SLOT(initializeBoxFromModel()));
++ connect(d->m_model, SIGNAL(dataChanged(QModelIndex,QModelIndex)), d, SLOT(modelUpdated(QModelIndex,QModelIndex)));
++ connect(d->m_model, SIGNAL(headerDataChanged(Qt::Orientation,int,int)), d, SLOT(modelHeaderDataUpdated(Qt::Orientation,int,int)));
++ connect(d->m_model, SIGNAL(rowsInserted(QModelIndex,int,int)), d, SLOT(modelRowsAdded(QModelIndex,int,int)));
++ connect(d->m_model, SIGNAL(rowsRemoved(QModelIndex,int,int)), d, SLOT(modelRowsRemoved(QModelIndex,int,int)));
++ connect(d->m_model, SIGNAL(columnsInserted(QModelIndex,int,int)), d, SLOT(modelColumnsAdded(QModelIndex,int,int)));
++ connect(d->m_model, SIGNAL(columnsRemoved(QModelIndex,int,int)), d, SLOT(modelColumnsRemoved(QModelIndex,int,int)));
++ connect(d->m_model, SIGNAL(destroyed()), d, SLOT(handleModelDestroyed()));
++ }
++
++ QBoxPlotSeries *QBoxPlotModelMapper::series() const
++ {
++ Q_D(const QBoxPlotModelMapper);
++ return d->m_series;
++ }
++
++ void QBoxPlotModelMapper::setSeries(QBoxPlotSeries *series)
++ {
++ Q_D(QBoxPlotModelMapper);
++ if (d->m_series)
++ disconnect(d->m_series, 0, d, 0);
++
++ if (series == 0)
++ return;
++
++ d->m_series = series;
++ d->initializeBoxFromModel();
++ // connect the signals from the series
++ connect(d->m_series, SIGNAL(boxsetsAdded(QList<QBoxSet*>)),
++ d, SLOT(boxSetsAdded(QList<QBoxSet*>)));
++ connect(d->m_series, SIGNAL(boxsetsRemoved(QList<QBoxSet*>)),
++ d, SLOT(boxSetsRemoved(QList<QBoxSet*>)));
++ connect(d->m_series, SIGNAL(destroyed()), d, SLOT(handleSeriesDestroyed()));
++ }
++
++ /*!
++ Returns which row/column of the model contains the first values of the QBoxSets in the series.
++ The default value is 0.
++ */
++ int QBoxPlotModelMapper::first() const
++ {
++ Q_D(const QBoxPlotModelMapper);
++ return d->m_first;
++ }
++
++ /*!
++ Sets which row/column of the model contains the \a first values of the QBoxSets in the series.
++ The default value is 0.
++ */
++ void QBoxPlotModelMapper::setFirst(int first)
++ {
++ Q_D(QBoxPlotModelMapper);
++ d->m_first = qMax(first, 0);
++ d->initializeBoxFromModel();
++ }
++
++ /*!
++ Returns the number of rows/columns of the model that are mapped as the data for QBoxPlotSeries
++ Minimal and default value is: -1 (count limited by the number of rows/columns in the model)
++ */
++ int QBoxPlotModelMapper::count() const
++ {
++ Q_D(const QBoxPlotModelMapper);
++ return d->m_count;
++ }
++
++ /*!
++ Sets the \a count of rows/columns of the model that are mapped as the data for QBoxPlotSeries
++ Minimal and default value is: -1 (count limited by the number of rows/columns in the model)
++ */
++ void QBoxPlotModelMapper::setCount(int count)
++ {
++ Q_D(QBoxPlotModelMapper);
++ d->m_count = qMax(count, -1);
++ d->initializeBoxFromModel();
++ }
++
++ /*!
++ Returns the orientation that is used when QBoxPlotModelMapper accesses the model.
++ This means whether the consecutive values of the box-and-whiskers set are read from row (Qt::Horizontal)
++ or from columns (Qt::Vertical)
++ */
++ Qt::Orientation QBoxPlotModelMapper::orientation() const
++ {
++ Q_D(const QBoxPlotModelMapper);
++ return d->m_orientation;
++ }
++
++ /*!
++ Returns the \a orientation that is used when QBoxPlotModelMapper accesses the model.
++ This mean whether the consecutive values of the box-and-whiskers set are read from row (Qt::Horizontal)
++ or from columns (Qt::Vertical)
++ */
++ void QBoxPlotModelMapper::setOrientation(Qt::Orientation orientation)
++ {
++ Q_D(QBoxPlotModelMapper);
++ d->m_orientation = orientation;
++ d->initializeBoxFromModel();
++ }
++
++ /*!
++ Returns which section of the model is used as the data source for the first box set
++ */
++ int QBoxPlotModelMapper::firstBoxSetSection() const
++ {
++ Q_D(const QBoxPlotModelMapper);
++ return d->m_firstBoxSetSection;
++ }
++
++ /*!
++ Sets the model section that is used as the data source for the first box set
++ Parameter \a firstBoxSetSection specifies the section of the model.
++ */
++ void QBoxPlotModelMapper::setFirstBoxSetSection(int firstBoxSetSection)
++ {
++ Q_D(QBoxPlotModelMapper);
++ d->m_firstBoxSetSection = qMax(-1, firstBoxSetSection);
++ d->initializeBoxFromModel();
++ }
++
++ /*!
++ Returns which section of the model is used as the data source for the last box set
++ */
++ int QBoxPlotModelMapper::lastBoxSetSection() const
++ {
++ Q_D(const QBoxPlotModelMapper);
++ return d->m_lastBoxSetSection;
++ }
++
++ /*!
++ Sets the model section that is used as the data source for the last box set
++ Parameter \a lastBoxSetSection specifies the section of the model.
++ */
++ void QBoxPlotModelMapper::setLastBoxSetSection(int lastBoxSetSection)
++ {
++ Q_D(QBoxPlotModelMapper);
++ d->m_lastBoxSetSection = qMax(-1, lastBoxSetSection);
++ d->initializeBoxFromModel();
++ }
++
++ ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
++
++ QBoxPlotModelMapperPrivate::QBoxPlotModelMapperPrivate(QBoxPlotModelMapper *q) :
++ QObject(q),
++ m_series(0),
++ m_model(0),
++ m_first(0),
++ m_count(-1),
++ m_orientation(Qt::Vertical),
++ m_firstBoxSetSection(-1),
++ m_lastBoxSetSection(-1),
++ m_seriesSignalsBlock(false),
++ m_modelSignalsBlock(false),
++ q_ptr(q)
++ {
++ }
++
++ void QBoxPlotModelMapperPrivate::blockModelSignals(bool block)
++ {
++ m_modelSignalsBlock = block;
++ }
++
++ void QBoxPlotModelMapperPrivate::blockSeriesSignals(bool block)
++ {
++ m_seriesSignalsBlock = block;
++ }
++
++ QBoxSet *QBoxPlotModelMapperPrivate::boxSet(QModelIndex index)
++ {
++ if (!index.isValid())
++ return 0;
++
++ if (m_orientation == Qt::Vertical && index.column() >= m_firstBoxSetSection && index.column() <= m_lastBoxSetSection) {
++ if (index.row() >= m_first && (m_count == - 1 || index.row() < m_first + m_count))
++ return m_series->boxSets().at(index.column() - m_firstBoxSetSection);
++ } else if (m_orientation == Qt::Horizontal && index.row() >= m_firstBoxSetSection && index.row() <= m_lastBoxSetSection) {
++ if (index.column() >= m_first && (m_count == - 1 || index.column() < m_first + m_count))
++ return m_series->boxSets().at(index.row() - m_firstBoxSetSection);
++ }
++ return 0; // This part of model has not been mapped to any boxset
++ }
++
++ QModelIndex QBoxPlotModelMapperPrivate::boxModelIndex(int boxSection, int posInBar)
++ {
++ if (m_count != -1 && posInBar >= m_count)
++ return QModelIndex(); // invalid
++
++ if (boxSection < m_firstBoxSetSection || boxSection > m_lastBoxSetSection)
++ return QModelIndex(); // invalid
++
++ if (m_orientation == Qt::Vertical)
++ return m_model->index(posInBar + m_first, boxSection);
++ else
++ return m_model->index(boxSection, posInBar + m_first);
++ }
++
++ void QBoxPlotModelMapperPrivate::handleSeriesDestroyed()
++ {
++ m_series = 0;
++ }
++
++ void QBoxPlotModelMapperPrivate::modelUpdated(QModelIndex topLeft, QModelIndex bottomRight)
++ {
++ Q_UNUSED(topLeft);
++ Q_UNUSED(bottomRight);
++
++ if (m_model == 0 || m_series == 0)
++ return;
++
++ if (m_modelSignalsBlock)
++ return;
++
++ blockSeriesSignals();
++ QModelIndex index;
++ for (int row = topLeft.row(); row <= bottomRight.row(); row++) {
++ for (int column = topLeft.column(); column <= bottomRight.column(); column++) {
++ index = topLeft.sibling(row, column);
++ QBoxSet *box = boxSet(index);
++ if (box) {
++ if (m_orientation == Qt::Vertical)
++ box->setValue(row - m_first, m_model->data(index).toReal());
++ else
++ box->setValue(column - m_first, m_model->data(index).toReal());
++ }
++ }
++ }
++ blockSeriesSignals(false);
++ }
++
++ void QBoxPlotModelMapperPrivate::modelHeaderDataUpdated(Qt::Orientation orientation, int first, int last)
++ {
++ Q_UNUSED(orientation);
++ Q_UNUSED(first);
++ Q_UNUSED(last);
++ }
++
++ void QBoxPlotModelMapperPrivate::modelRowsAdded(QModelIndex parent, int start, int end)
++ {
++ Q_UNUSED(parent);
++ if (m_modelSignalsBlock)
++ return;
++
++ blockSeriesSignals();
++ if (m_orientation == Qt::Vertical)
++ insertData(start, end);
++ else if (start <= m_firstBoxSetSection || start <= m_lastBoxSetSection) // if the changes affect the map - reinitialize
++ initializeBoxFromModel();
++ blockSeriesSignals(false);
++ }
++
++ void QBoxPlotModelMapperPrivate::modelRowsRemoved(QModelIndex parent, int start, int end)
++ {
++ Q_UNUSED(parent);
++ if (m_modelSignalsBlock)
++ return;
++
++ blockSeriesSignals();
++ if (m_orientation == Qt::Vertical)
++ removeData(start, end);
++ else if (start <= m_firstBoxSetSection || start <= m_lastBoxSetSection) // if the changes affect the map - reinitialize
++ initializeBoxFromModel();
++ blockSeriesSignals(false);
++ }
++
++ void QBoxPlotModelMapperPrivate::modelColumnsAdded(QModelIndex parent, int start, int end)
++ {
++ Q_UNUSED(parent);
++ if (m_modelSignalsBlock)
++ return;
++
++ blockSeriesSignals();
++ if (m_orientation == Qt::Horizontal)
++ insertData(start, end);
++ else if (start <= m_firstBoxSetSection || start <= m_lastBoxSetSection) // if the changes affect the map - reinitialize
++ initializeBoxFromModel();
++ blockSeriesSignals(false);
++ }
++
++ void QBoxPlotModelMapperPrivate::modelColumnsRemoved(QModelIndex parent, int start, int end)
++ {
++ Q_UNUSED(parent);
++ if (m_modelSignalsBlock)
++ return;
++
++ blockSeriesSignals();
++ if (m_orientation == Qt::Horizontal)
++ removeData(start, end);
++ else if (start <= m_firstBoxSetSection || start <= m_lastBoxSetSection) // if the changes affect the map - reinitialize
++ initializeBoxFromModel();
++ blockSeriesSignals(false);
++ }
++
++ void QBoxPlotModelMapperPrivate::handleModelDestroyed()
++ {
++ m_model = 0;
++ }
++
++ void QBoxPlotModelMapperPrivate::insertData(int start, int end)
++ {
++ Q_UNUSED(end);
++ Q_UNUSED(start);
++ Q_UNUSED(end);
++ // Currently boxplotchart needs to be fully recalculated when change is made.
++ // Re-initialize
++ initializeBoxFromModel();
++ }
++
++ void QBoxPlotModelMapperPrivate::removeData(int start, int end)
++ {
++ Q_UNUSED(end);
++ Q_UNUSED(start);
++ Q_UNUSED(end);
++ // Currently boxplotchart needs to be fully recalculated when change is made.
++ // Re-initialize
++ initializeBoxFromModel();
++ }
++
++ void QBoxPlotModelMapperPrivate::boxSetsAdded(const QList<QBoxSet *> &sets)
++ {
++ if (m_seriesSignalsBlock)
++ return;
++
++ if (sets.size() == 0)
++ return;
++
++ int firstIndex = m_series->boxSets().indexOf(sets.at(0));
++ if (firstIndex == -1)
++ return;
++
++ int maxCount = 0;
++ for (int i = 0; i < sets.size(); i++) {
++ if (sets.at(i)->count() > m_count)
++ maxCount = sets.at(i)->count();
++ }
++
++ if (m_count != -1 && m_count < maxCount)
++ m_count = maxCount;
++
++ m_lastBoxSetSection += sets.size();
++
++ blockModelSignals();
++ int modelCapacity = m_orientation == Qt::Vertical ? m_model->rowCount() - m_first : m_model->columnCount() - m_first;
++ if (maxCount > modelCapacity) {
++ if (m_orientation == Qt::Vertical)
++ m_model->insertRows(m_model->rowCount(), maxCount - modelCapacity);
++ else
++ m_model->insertColumns(m_model->columnCount(), maxCount - modelCapacity);
++ }
++
++ if (m_orientation == Qt::Vertical)
++ m_model->insertColumns(firstIndex + m_firstBoxSetSection, sets.size());
++ else
++ m_model->insertRows(firstIndex + m_firstBoxSetSection, sets.size());
++
++
++ for (int i = firstIndex + m_firstBoxSetSection; i < firstIndex + m_firstBoxSetSection + sets.size(); i++) {
++ for (int j = 0; j < sets.at(i - firstIndex - m_firstBoxSetSection)->count(); j++)
++ m_model->setData(boxModelIndex(i, j), sets.at(i - firstIndex - m_firstBoxSetSection)->at(j));
++ }
++ blockModelSignals(false);
++ initializeBoxFromModel();
++ }
++
++ void QBoxPlotModelMapperPrivate::boxSetsRemoved(const QList<QBoxSet *> &sets)
++ {
++ if (m_seriesSignalsBlock)
++ return;
++
++ if (sets.size() == 0)
++ return;
++
++ int firstIndex = m_boxSets.indexOf(sets.at(0));
++ if (firstIndex == -1)
++ return;
++
++ m_lastBoxSetSection -= sets.size();
++
++ for (int i = firstIndex + sets.size() - 1; i >= firstIndex; i--)
++ m_boxSets.removeAt(i);
++
++ blockModelSignals();
++ if (m_orientation == Qt::Vertical)
++ m_model->removeColumns(firstIndex + m_firstBoxSetSection, sets.size());
++ else
++ m_model->removeRows(firstIndex + m_firstBoxSetSection, sets.size());
++ blockModelSignals(false);
++ initializeBoxFromModel();
++ }
++
++ void QBoxPlotModelMapperPrivate::boxValueChanged(int index)
++ {
++ if (m_seriesSignalsBlock)
++ return;
++
++ int boxSetIndex = m_boxSets.indexOf(qobject_cast<QBoxSet *>(QObject::sender()));
++
++ blockModelSignals();
++ m_model->setData(boxModelIndex(boxSetIndex + m_firstBoxSetSection, index), m_boxSets.at(boxSetIndex)->at(index));
++ blockModelSignals(false);
++ initializeBoxFromModel();
++ }
++
++ void QBoxPlotModelMapperPrivate::initializeBoxFromModel()
++ {
++ if (m_model == 0 || m_series == 0)
++ return;
++
++ blockSeriesSignals();
++ // clear current content
++ m_series->clear();
++ m_boxSets.clear();
++
++ // create the initial box-and-whiskers sets
++ for (int i = m_firstBoxSetSection; i <= m_lastBoxSetSection; i++) {
++ int posInBar = 0;
++ QModelIndex boxIndex = boxModelIndex(i, posInBar);
++ // check if there is such model index
++ if (boxIndex.isValid()) {
++ QBoxSet *boxSet = new QBoxSet();
++ while (boxIndex.isValid()) {
++ boxSet->append(m_model->data(boxIndex, Qt::DisplayRole).toDouble());
++ posInBar++;
++ boxIndex = boxModelIndex(i, posInBar);
++ }
++ connect(boxSet, SIGNAL(valueChanged(int)), this, SLOT(boxValueChanged(int)));
++ m_series->append(boxSet);
++ m_boxSets.append(boxSet);
++ } else {
++ break;
++ }
++ }
++ blockSeriesSignals(false);
++ }
++
++ QT_END_NAMESPACE
++
++ #include "moc_qboxplotmodelmapper.cpp"
++ #include "moc_qboxplotmodelmapper_p.cpp"