| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the Qt Charts module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:GPL$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
| ** accordance with the commercial license agreement provided with the |
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| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 3 or (at your option) any later version |
| ** approved by the KDE Free Qt Foundation. The licenses are as published by |
| ** the Free Software Foundation and appearing in the file LICENSE.GPL3 |
| ** included in the packaging of this file. Please review the following |
| ** information to ensure the GNU General Public License requirements will |
| ** be met: https://www.gnu.org/licenses/gpl-3.0.html. |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #include <QtCharts/QBoxPlotModelMapper> |
| #include <private/qboxplotmodelmapper_p.h> |
| #include <QtCharts/QBoxPlotSeries> |
| #include <QtCharts/QBoxSet> |
| #include <QtCharts/QChart> |
| #include <QtCore/QAbstractItemModel> |
| |
| QT_CHARTS_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(QList<QBoxSet *> sets) |
| { |
| if (m_seriesSignalsBlock) |
| return; |
| |
| if (sets.count() == 0) |
| return; |
| |
| int firstIndex = m_series->boxSets().indexOf(sets.at(0)); |
| if (firstIndex == -1) |
| return; |
| |
| int maxCount = 0; |
| for (int i = 0; i < sets.count(); 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.count(); |
| |
| 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.count()); |
| else |
| m_model->insertRows(firstIndex + m_firstBoxSetSection, sets.count()); |
| |
| |
| for (int i = firstIndex + m_firstBoxSetSection; i < firstIndex + m_firstBoxSetSection + sets.count(); 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(QList<QBoxSet *> sets) |
| { |
| if (m_seriesSignalsBlock) |
| return; |
| |
| if (sets.count() == 0) |
| return; |
| |
| int firstIndex = m_boxSets.indexOf(sets.at(0)); |
| if (firstIndex == -1) |
| return; |
| |
| m_lastBoxSetSection -= sets.count(); |
| |
| for (int i = firstIndex + sets.count() - 1; i >= firstIndex; i--) |
| m_boxSets.removeAt(i); |
| |
| blockModelSignals(); |
| if (m_orientation == Qt::Vertical) |
| m_model->removeColumns(firstIndex + m_firstBoxSetSection, sets.count()); |
| else |
| m_model->removeRows(firstIndex + m_firstBoxSetSection, sets.count()); |
| 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_CHARTS_END_NAMESPACE |
| |
| #include "moc_qboxplotmodelmapper.cpp" |
| #include "moc_qboxplotmodelmapper_p.cpp" |