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#include "qpiemodelmapper_p.h"
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#include "qpiemodelmapper.h"
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#include "qpieseries.h"
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#include "qpieslice.h"
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#include <QAbstractItemModel>
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QTCOMMERCIALCHART_BEGIN_NAMESPACE
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QPieModelMapper::QPieModelMapper(QObject *parent) :
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QObject(parent),
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d_ptr(new QPieModelMapperPrivate(this))
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{
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}
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QAbstractItemModel* QPieModelMapper::model() const
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{
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Q_D(const QPieModelMapper);
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return d->m_model;
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}
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void QPieModelMapper::setModel(QAbstractItemModel *model)
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{
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if (model == 0)
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return;
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Q_D(QPieModelMapper);
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if (d->m_model) {
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disconnect(d->m_model, 0, d, 0);
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}
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d->m_model = model;
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d->initializePieFromModel();
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// connect signals from the model
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connect(d->m_model, SIGNAL(dataChanged(QModelIndex,QModelIndex)), d, SLOT(modelUpdated(QModelIndex,QModelIndex)));
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connect(d->m_model, SIGNAL(rowsInserted(QModelIndex,int,int)), d, SLOT(modelRowsAdded(QModelIndex,int,int)));
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connect(d->m_model, SIGNAL(rowsRemoved(QModelIndex,int,int)), d, SLOT(modelRowsRemoved(QModelIndex,int,int)));
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connect(d->m_model, SIGNAL(columnsInserted(QModelIndex,int,int)), d, SLOT(modelColumnsAdded(QModelIndex,int,int)));
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connect(d->m_model, SIGNAL(columnsRemoved(QModelIndex,int,int)), d, SLOT(modelColumnsRemoved(QModelIndex,int,int)));
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}
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QPieSeries* QPieModelMapper::series() const
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{
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Q_D(const QPieModelMapper);
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return d->m_series;
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}
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void QPieModelMapper::setSeries(QPieSeries *series)
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{
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if (series == 0)
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return;
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Q_D(QPieModelMapper);
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if (d->m_series) {
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disconnect(d->m_series, 0, d, 0);
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}
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d->m_series = series;
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d->initializePieFromModel();
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// connect the signals from the series
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connect(d->m_series, SIGNAL(added(QList<QPieSlice*>)), d, SLOT(slicesAdded(QList<QPieSlice*>)));
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connect(d->m_series, SIGNAL(removed(QList<QPieSlice*>)), d, SLOT(slicesRemoved(QList<QPieSlice*>)));
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// connect(d->m_model, SIGNAL(), d, SLOT());
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}
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int QPieModelMapper::first() const
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{
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Q_D(const QPieModelMapper);
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return d->m_first;
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}
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void QPieModelMapper::setFirst(int first)
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{
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Q_D(QPieModelMapper);
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d->m_first = qMax(first, 0);
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d->initializePieFromModel();
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}
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int QPieModelMapper::count() const
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{
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Q_D(const QPieModelMapper);
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return d->m_count;
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}
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void QPieModelMapper::setCount(int count)
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{
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Q_D(QPieModelMapper);
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d->m_count = qMax(count, -1);
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d->initializePieFromModel();
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}
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Qt::Orientation QPieModelMapper::orientation() const
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{
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Q_D(const QPieModelMapper);
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return d->m_orientation;
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}
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void QPieModelMapper::setOrientation(Qt::Orientation orientation)
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{
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Q_D(QPieModelMapper);
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d->m_orientation = orientation;
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d->initializePieFromModel();
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}
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int QPieModelMapper::valuesIndex() const
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{
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Q_D(const QPieModelMapper);
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return d->m_valuesIndex;
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}
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void QPieModelMapper::setValuesIndex(int valuesIndex)
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{
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Q_D(QPieModelMapper);
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d->m_valuesIndex = qMax(-1, valuesIndex);
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d->initializePieFromModel();
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}
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int QPieModelMapper::labelsIndex() const
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{
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Q_D(const QPieModelMapper);
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return d->m_labelsIndex;
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}
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void QPieModelMapper::setLabelsIndex(int labelsIndex)
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{
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Q_D(QPieModelMapper);
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d->m_labelsIndex = qMax(-1, labelsIndex);
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d->initializePieFromModel();
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}
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void QPieModelMapper::reset()
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{
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Q_D(QPieModelMapper);
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d->m_first = 0;
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d->m_count = -1;
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d->m_orientation = Qt::Vertical;
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d->m_valuesIndex = -1;
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d->m_labelsIndex = -1;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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QPieModelMapperPrivate::QPieModelMapperPrivate(QPieModelMapper *q) :
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q_ptr(q)
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{
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m_series = 0;
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m_model = 0;
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m_first = 0;
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m_count = -1;
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m_orientation = Qt::Vertical;
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m_valuesIndex = -1;
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m_labelsIndex = -1;
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m_seriesSignalsBlock = false;
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m_modelSignalsBlock = false;
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}
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void QPieModelMapperPrivate::blockModelSignals(bool block)
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{
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m_modelSignalsBlock = block;
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}
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void QPieModelMapperPrivate::blockSeriesSignals(bool block)
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{
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m_seriesSignalsBlock = block;
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}
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QPieSlice* QPieModelMapperPrivate::pieSlice(QModelIndex index) const
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{
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if (m_orientation == Qt::Vertical && (index.column() == m_valuesIndex || index.column() == m_labelsIndex)) {
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if (index.row() >= m_first && (m_count == - 1 || index.row() < m_first + m_count))
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return m_series->slices().at(index.row() - m_first);
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} else if (m_orientation == Qt::Horizontal && (index.row() == m_valuesIndex || index.row() == m_labelsIndex)) {
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if (index.column() >= m_first && (m_count == - 1 || index.column() < m_first + m_count))
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return m_series->slices().at(index.column() - m_first);
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}
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return 0; // This part of model has not been mapped to any slice
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}
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QModelIndex QPieModelMapperPrivate::valueModelIndex(int slicePos)
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{
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if (m_count != -1 && slicePos >= m_count)
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return QModelIndex(); // invalid
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if (m_orientation == Qt::Vertical)
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return m_model->index(slicePos + m_first, m_valuesIndex);
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else
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return m_model->index(m_valuesIndex, slicePos + m_first);
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}
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QModelIndex QPieModelMapperPrivate::labelModelIndex(int slicePos)
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{
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if (m_count != -1 && slicePos >= m_count)
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return QModelIndex(); // invalid
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if (m_orientation == Qt::Vertical)
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return m_model->index(slicePos + m_first, m_labelsIndex);
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else
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return m_model->index(m_labelsIndex, slicePos + m_first);
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}
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void QPieModelMapperPrivate::slicesAdded(QList<QPieSlice*> slices)
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{
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if (m_seriesSignalsBlock)
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return;
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if (slices.count() == 0)
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return;
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int firstIndex = m_series->slices().indexOf(slices.at(0));
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if (firstIndex == -1)
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return;
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if (m_count != -1)
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m_count += slices.count();
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for (int i = firstIndex; i < firstIndex + slices.count(); i++) {
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m_slices.insert(i, slices.at(i - firstIndex));
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connect(slices.at(i - firstIndex), SIGNAL(labelChanged()), this, SLOT(sliceLabelChanged()));
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connect(slices.at(i - firstIndex), SIGNAL(valueChanged()), this, SLOT(sliceValueChanged()));
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}
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blockModelSignals();
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if (m_orientation == Qt::Vertical)
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m_model->insertRows(firstIndex + m_first, slices.count());
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else
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m_model->insertColumns(firstIndex + m_first, slices.count());
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for(int i = firstIndex; i < firstIndex + slices.count(); i++) {
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m_model->setData(valueModelIndex(i), slices.at(i - firstIndex)->value());
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m_model->setData(labelModelIndex(i), slices.at(i - firstIndex)->label());
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}
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blockModelSignals(false);
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}
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void QPieModelMapperPrivate::slicesRemoved(QList<QPieSlice*> slices)
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{
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if (m_seriesSignalsBlock)
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return;
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if (slices.count() == 0)
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return;
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int firstIndex = m_slices.indexOf(slices.at(0));
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if (firstIndex == -1)
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return;
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if (m_count != -1)
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m_count -= slices.count();
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for (int i = firstIndex + slices.count() - 1; i >= firstIndex; i--)
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m_slices.removeAt(i);
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blockModelSignals();
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if (m_orientation == Qt::Vertical)
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m_model->removeRows(firstIndex + m_first, slices.count());
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else
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m_model->removeColumns(firstIndex + m_first, slices.count());
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blockModelSignals(false);
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}
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void QPieModelMapperPrivate::sliceLabelChanged()
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{
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if (m_seriesSignalsBlock)
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return;
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blockModelSignals();
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QPieSlice *slice = qobject_cast<QPieSlice *>(QObject::sender());
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m_model->setData(labelModelIndex(m_series->slices().indexOf(slice)), slice->label());
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blockModelSignals(false);
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}
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void QPieModelMapperPrivate::sliceValueChanged()
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{
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if (m_seriesSignalsBlock)
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return;
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blockModelSignals();
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QPieSlice *slice = qobject_cast<QPieSlice *>(QObject::sender());
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m_model->setData(valueModelIndex(m_series->slices().indexOf(slice)), slice->value());
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blockModelSignals(false);
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}
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void QPieModelMapperPrivate::modelUpdated(QModelIndex topLeft, QModelIndex bottomRight)
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{
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if (m_modelSignalsBlock)
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return;
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blockSeriesSignals();
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QModelIndex index;
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QPieSlice *slice;
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for (int row = topLeft.row(); row <= bottomRight.row(); row++) {
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for (int column = topLeft.column(); column <= bottomRight.column(); column++) {
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index = topLeft.sibling(row, column);
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slice = pieSlice(index);
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if (slice) {
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slice->setValue(m_model->data(index, Qt::DisplayRole).toReal());
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slice->setLabel(m_model->data(index, Qt::DisplayRole).toString());
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}
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}
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}
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blockSeriesSignals(false);
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}
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void QPieModelMapperPrivate::modelRowsAdded(QModelIndex parent, int start, int end)
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{
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Q_UNUSED(parent);
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if (m_modelSignalsBlock)
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return;
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blockSeriesSignals();
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if (m_orientation == Qt::Vertical)
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insertData(start, end);
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else if (start <= m_valuesIndex || start <= m_labelsIndex) // if the changes affect the map - reinitialize the pie
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initializePieFromModel();
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blockSeriesSignals(false);
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}
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void QPieModelMapperPrivate::modelRowsRemoved(QModelIndex parent, int start, int end)
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{
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Q_UNUSED(parent);
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if (m_modelSignalsBlock)
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return;
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blockSeriesSignals();
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if (m_orientation == Qt::Vertical)
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removeData(start, end);
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else if (start <= m_valuesIndex || start <= m_labelsIndex) // if the changes affect the map - reinitialize the pie
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initializePieFromModel();
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blockSeriesSignals(false);
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}
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void QPieModelMapperPrivate::modelColumnsAdded(QModelIndex parent, int start, int end)
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{
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Q_UNUSED(parent);
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if (m_modelSignalsBlock)
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return;
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blockSeriesSignals();
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if (m_orientation == Qt::Horizontal)
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insertData(start, end);
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else if (start <= m_valuesIndex || start <= m_labelsIndex) // if the changes affect the map - reinitialize the pie
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initializePieFromModel();
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blockSeriesSignals(false);
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}
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void QPieModelMapperPrivate::modelColumnsRemoved(QModelIndex parent, int start, int end)
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{
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Q_UNUSED(parent);
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if (m_modelSignalsBlock)
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return;
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blockSeriesSignals();
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if (m_orientation == Qt::Horizontal)
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removeData(start, end);
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else if (start <= m_valuesIndex || start <= m_labelsIndex) // if the changes affect the map - reinitialize the pie
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initializePieFromModel();
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blockSeriesSignals(false);
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}
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void QPieModelMapperPrivate::insertData(int start, int end)
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{
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if (m_count != -1 && start >= m_first + m_count) {
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return;
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} else {
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int addedCount = end - start + 1;
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if (m_count != -1 && addedCount > m_count)
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addedCount = m_count;
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int first = qMax(start, m_first);
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int last = qMin(first + addedCount - 1, m_orientation == Qt::Vertical ? m_model->rowCount() - 1 : m_model->columnCount() - 1);
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for (int i = first; i <= last; i++) {
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QPieSlice *slice = new QPieSlice;
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slice->setValue(m_model->data(valueModelIndex(i - m_first), Qt::DisplayRole).toDouble());
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slice->setLabel(m_model->data(labelModelIndex(i - m_first), Qt::DisplayRole).toString());
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slice->setLabelVisible();
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connect(slice, SIGNAL(labelChanged()), this, SLOT(sliceLabelChanged()));
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connect(slice, SIGNAL(valueChanged()), this, SLOT(sliceValueChanged()));
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m_series->insert(i - m_first, slice);
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m_slices.insert(i - m_first, slice);
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}
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// remove excess of slices (abouve m_count)
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if (m_count != -1 && m_series->slices().size() > m_count)
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for (int i = m_series->slices().size() - 1; i >= m_count; i--) {
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m_series->remove(m_series->slices().at(i));
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m_slices.removeAt(i);
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}
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}
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}
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void QPieModelMapperPrivate::removeData(int start, int end)
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{
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int removedCount = end - start + 1;
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if (m_count != -1 && start >= m_first + m_count) {
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return;
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} else {
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int toRemove = qMin(m_series->slices().size(), removedCount); // first find how many items can actually be removed
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int first = qMax(start, m_first); // get the index of the first item that will be removed.
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int last = qMin(first + toRemove - 1, m_series->slices().size() + m_first - 1); // get the index of the last item that will be removed.
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for (int i = last; i >= first; i--) {
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m_series->remove(m_series->slices().at(i - m_first));
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m_slices.removeAt(i - m_first);
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}
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if (m_count != -1) {
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int itemsAvailable; // check how many are available to be added
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if (m_orientation == Qt::Vertical)
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itemsAvailable = m_model->rowCount() - m_first - m_series->slices().size();
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else
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itemsAvailable = m_model->columnCount() - m_first - m_series->slices().size();
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int toBeAdded = qMin(itemsAvailable, m_count - m_series->slices().size()); // add not more items than there is space left to be filled.
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int currentSize = m_series->slices().size();
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if (toBeAdded > 0)
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for (int i = m_series->slices().size(); i < currentSize + toBeAdded; i++) {
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QPieSlice *slice = new QPieSlice;
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if (m_orientation == Qt::Vertical) {
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slice->setValue(m_model->data(m_model->index(i + m_first, m_valuesIndex), Qt::DisplayRole).toDouble());
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|
|
slice->setLabel(m_model->data(m_model->index(i + m_first, m_labelsIndex), Qt::DisplayRole).toString());
|
|
|
} else {
|
|
|
slice->setValue(m_model->data(m_model->index(m_valuesIndex, i + m_first), Qt::DisplayRole).toDouble());
|
|
|
slice->setLabel(m_model->data(m_model->index(m_labelsIndex, i + m_first), Qt::DisplayRole).toString());
|
|
|
}
|
|
|
slice->setLabelVisible();
|
|
|
m_series->insert(i, slice);
|
|
|
m_slices.insert(i, slice);
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void QPieModelMapperPrivate::initializePieFromModel()
|
|
|
{
|
|
|
if (m_model == 0 || m_series == 0)
|
|
|
return;
|
|
|
|
|
|
blockSeriesSignals();
|
|
|
// clear current content
|
|
|
m_series->clear();
|
|
|
m_slices.clear();
|
|
|
|
|
|
// create the initial slices set
|
|
|
int slicePos = 0;
|
|
|
QModelIndex valueIndex = valueModelIndex(slicePos);
|
|
|
QModelIndex labelIndex = labelModelIndex(slicePos);
|
|
|
while (valueIndex.isValid() && labelIndex.isValid()) {
|
|
|
QPieSlice *slice = new QPieSlice;
|
|
|
slice->setLabel(m_model->data(labelIndex, Qt::DisplayRole).toString());
|
|
|
slice->setValue(m_model->data(valueIndex, Qt::DisplayRole).toDouble());
|
|
|
connect(slice, SIGNAL(labelChanged()), this, SLOT(sliceLabelChanged()));
|
|
|
connect(slice, SIGNAL(valueChanged()), this, SLOT(sliceValueChanged()));
|
|
|
m_series->append(slice);
|
|
|
m_slices.append(slice);
|
|
|
// m_series->append(m_model->data(labelIndex, Qt::DisplayRole).toString(), m_model->data(valueIndex, Qt::DisplayRole).toDouble());
|
|
|
slicePos++;
|
|
|
valueIndex = valueModelIndex(slicePos);
|
|
|
labelIndex = labelModelIndex(slicePos);
|
|
|
}
|
|
|
m_series->setLabelsVisible(true);
|
|
|
blockSeriesSignals(false);
|
|
|
}
|
|
|
|
|
|
#include "moc_qpiemodelmapper_p.cpp"
|
|
|
#include "moc_qpiemodelmapper.cpp"
|
|
|
|
|
|
QTCOMMERCIALCHART_END_NAMESPACE
|
|
|
|
