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Diffstat (limited to 'src/charts/boxplotchart/qboxplotmodelmapper.cpp')
| -rw-r--r-- | src/charts/boxplotchart/qboxplotmodelmapper.cpp | 489 |
1 files changed, 489 insertions, 0 deletions
diff --git a/src/charts/boxplotchart/qboxplotmodelmapper.cpp b/src/charts/boxplotchart/qboxplotmodelmapper.cpp new file mode 100644 index 00000000..7f1487c8 --- /dev/null +++ b/src/charts/boxplotchart/qboxplotmodelmapper.cpp @@ -0,0 +1,489 @@ +/**************************************************************************** +** +** Copyright (C) 2014 Digia Plc +** All rights reserved. +** For any questions to Digia, please use contact form at http://qt.digia.com +** +** This file is part of the Qt Enterprise Charts Add-on. +** +** $QT_BEGIN_LICENSE$ +** Licensees holding valid Qt Enterprise licenses may use this file in +** accordance with the Qt Enterprise License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Digia. +** +** If you have questions regarding the use of this file, please use +** contact form at http://qt.digia.com +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qboxplotmodelmapper.h" +#include "qboxplotmodelmapper_p.h" +#include "qboxplotseries.h" +#include "qboxset.h" +#include "qchart.h" +#include <QAbstractItemModel> + +QT_CHARTS_BEGIN_NAMESPACE + +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(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); +} + +#include "moc_qboxplotmodelmapper.cpp" +#include "moc_qboxplotmodelmapper_p.cpp" + +QT_CHARTS_END_NAMESPACE + |