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#include "qbarmodelmapper.h"
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#include "qbarmodelmapper_p.h"
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#include "qbarseries.h"
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#include "qbarset.h"
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#include <QAbstractItemModel>
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QTCOMMERCIALCHART_BEGIN_NAMESPACE
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QBarModelMapper::QBarModelMapper(QObject *parent) :
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QObject(parent),
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d_ptr(new QBarModelMapperPrivate(this))
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{
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}
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QAbstractItemModel* QBarModelMapper::model() const
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{
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Q_D(const QBarModelMapper);
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return d->m_model;
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}
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void QBarModelMapper::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(QBarModelMapper);
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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->initializeBarFromModel();
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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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QBarSeries* QBarModelMapper::series() const
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{
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Q_D(const QBarModelMapper);
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return d->m_series;
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}
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void QBarModelMapper::setSeries(QBarSeries *series)
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{
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Q_D(QBarModelMapper);
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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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if (series == 0)
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return;
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d->m_series = series;
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d->initializeBarFromModel();
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// connect the signals from the series
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// connect(d->m_series, SIGNAL(pointAdded(int)), d, SLOT(handlePointAdded(int)));
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// connect(d->m_series, SIGNAL(pointRemoved(int)), d, SLOT(handlePointRemoved(int)));
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// connect(d->m_series, SIGNAL(pointReplaced(int)), d, SLOT(handlePointReplaced(int)));
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}
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int QBarModelMapper::first() const
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{
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Q_D(const QBarModelMapper);
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return d->m_first;
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}
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void QBarModelMapper::setFirst(int first)
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{
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Q_D(QBarModelMapper);
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d->m_first = qMax(first, 0);
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d->initializeBarFromModel();
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}
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int QBarModelMapper::count() const
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{
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Q_D(const QBarModelMapper);
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return d->m_count;
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}
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void QBarModelMapper::setCount(int count)
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{
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Q_D(QBarModelMapper);
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d->m_count = qMax(count, -1);
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d->initializeBarFromModel();
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}
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Qt::Orientation QBarModelMapper::orientation() const
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{
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Q_D(const QBarModelMapper);
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return d->m_orientation;
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}
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void QBarModelMapper::setOrientation(Qt::Orientation orientation)
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{
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Q_D(QBarModelMapper);
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d->m_orientation = orientation;
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d->initializeBarFromModel();
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}
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int QBarModelMapper::firstBarSection() const
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{
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Q_D(const QBarModelMapper);
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return d->m_firstBarSection;
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}
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void QBarModelMapper::setFirstBarSection(int firstBarSection)
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{
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Q_D(QBarModelMapper);
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d->m_firstBarSection = firstBarSection;
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d->initializeBarFromModel();
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}
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int QBarModelMapper::lastBarSection() const
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{
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Q_D(const QBarModelMapper);
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return d->m_lastBarSection;
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}
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void QBarModelMapper::setLastBarSection(int lastBarSection)
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{
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Q_D(QBarModelMapper);
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d->m_lastBarSection = lastBarSection;
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d->initializeBarFromModel();
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}
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int QBarModelMapper::categoriesSection() const
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{
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Q_D(const QBarModelMapper);
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return d->m_categoriesSection;
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}
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void QBarModelMapper::setCategoriesSection(int categoriesSection)
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{
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Q_D(QBarModelMapper);
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d->m_categoriesSection = categoriesSection;
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d->initializeBarFromModel();
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}
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void QBarModelMapper::reset()
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{
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Q_D(QBarModelMapper);
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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_firstBarSection = -1;
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d->m_lastBarSection = -1;
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d->m_categoriesSection = -1;
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d->initializeBarFromModel();
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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QBarModelMapperPrivate::QBarModelMapperPrivate(QBarModelMapper *q) :
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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_firstBarSection(-1),
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m_lastBarSection(-1),
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m_categoriesSection(-1),
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m_seriesSignalsBlock(false),
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m_modelSignalsBlock(false),
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q_ptr(q)
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{
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}
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void QBarModelMapperPrivate::blockModelSignals(bool block)
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{
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m_modelSignalsBlock = block;
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}
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void QBarModelMapperPrivate::blockSeriesSignals(bool block)
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{
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m_seriesSignalsBlock = block;
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}
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QBarSet* QBarModelMapperPrivate::barSet(QModelIndex index)
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{
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if (!index.isValid())
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return 0;
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if (m_orientation == Qt::Vertical && index.column() >= m_firstBarSection && index.column() <= m_lastBarSection) {
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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->barSets().at(index.column() - m_firstBarSection);
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} else if (m_orientation == Qt::Horizontal && index.row() >= m_firstBarSection && index.row() <= m_lastBarSection) {
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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->barSets().at(index.row() - m_firstBarSection);
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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 QBarModelMapperPrivate::barModelIndex(int barSection, int posInBar)
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{
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if (m_count != -1 && posInBar >= m_count)
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return QModelIndex(); // invalid
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if (barSection < m_firstBarSection || barSection > m_lastBarSection)
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return QModelIndex(); // invalid
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if (m_orientation == Qt::Vertical)
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return m_model->index(posInBar + m_first, barSection);
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else
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return m_model->index(barSection, posInBar + m_first);
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}
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QModelIndex QBarModelMapperPrivate::categoriesModelIndex(int posInCategories)
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{
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if (m_count != -1 && posInCategories >= 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(posInCategories + m_first, m_categoriesSection);
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else
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return m_model->index(m_categoriesSection, posInCategories + m_first);
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}
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void QBarModelMapperPrivate::modelUpdated(QModelIndex topLeft, QModelIndex bottomRight)
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{
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Q_UNUSED(topLeft)
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Q_UNUSED(bottomRight)
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if (m_model == 0 || m_series == 0)
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return;
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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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// QPointF oldPoint;
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// QPointF newPoint;
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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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QBarSet* bar = barSet(index);
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if (bar) {
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if (m_orientation == Qt::Vertical)
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bar->replace(row - m_first, m_model->data(index).toReal());
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else
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bar->replace(column - m_first, m_model->data(index).toReal());
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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 QBarModelMapperPrivate::modelRowsAdded(QModelIndex parent, int start, int end)
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{
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Q_UNUSED(parent);
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Q_UNUSED(end)
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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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initializeBarFromModel();
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else if (start <= m_firstBarSection || start <= m_lastBarSection || start <= m_categoriesSection) // if the changes affect the map - reinitialize
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initializeBarFromModel();
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blockSeriesSignals(false);
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}
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void QBarModelMapperPrivate::modelRowsRemoved(QModelIndex parent, int start, int end)
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{
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Q_UNUSED(parent);
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Q_UNUSED(end)
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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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initializeBarFromModel();
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else if (start <= m_firstBarSection || start <= m_lastBarSection || start <= m_categoriesSection) // if the changes affect the map - reinitialize
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initializeBarFromModel();
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blockSeriesSignals(false);
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}
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void QBarModelMapperPrivate::modelColumnsAdded(QModelIndex parent, int start, int end)
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{
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Q_UNUSED(parent);
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Q_UNUSED(end)
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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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initializeBarFromModel();
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else if (start <= m_firstBarSection || start <= m_lastBarSection || start <= m_categoriesSection) // if the changes affect the map - reinitialize
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initializeBarFromModel();
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blockSeriesSignals(false);
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}
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void QBarModelMapperPrivate::modelColumnsRemoved(QModelIndex parent, int start, int end)
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{
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Q_UNUSED(parent);
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Q_UNUSED(end)
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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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initializeBarFromModel();
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else if (start <= m_firstBarSection || start <= m_lastBarSection || start <= m_categoriesSection) // if the changes affect the map - reinitialize
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initializeBarFromModel();
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blockSeriesSignals(false);
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}
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void QBarModelMapperPrivate::insertData(int start, int end)
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{
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Q_UNUSED(end)
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if (m_model == 0 || m_series == 0)
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return;
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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 k = 0; k < m_series->barSets().count(); k++) {
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for (int i = first; i <= last; i++) {
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QBar point;
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point.setX(m_model->data(xModelIndex(i - m_first), Qt::DisplayRole).toDouble());
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point.setY(m_model->data(yModelIndex(i - m_first), Qt::DisplayRole).toDouble());
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m_series->insert(i - m_first, point);
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}
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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->points().size() > m_count)
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for (int i = m_series->points().size() - 1; i >= m_count; i--) {
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m_series->remove(m_series->points().at(i));
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}
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}*/
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}
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void QBarModelMapperPrivate::removeData(int start, int end)
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{
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Q_UNUSED(end)
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if (m_model == 0 || m_series == 0)
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return;
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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->count(), 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->count() + 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->points().at(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->count();
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else
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itemsAvailable = m_model->columnCount() - m_first - m_series->count();
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int toBeAdded = qMin(itemsAvailable, m_count - m_series->count()); // add not more items than there is space left to be filled.
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int currentSize = m_series->count();
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if (toBeAdded > 0)
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for (int i = m_series->count(); i < currentSize + toBeAdded; i++) {
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QPointF point;
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point.setX(m_model->data(xModelIndex(i), Qt::DisplayRole).toDouble());
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point.setY(m_model->data(yModelIndex(i), Qt::DisplayRole).toDouble());
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m_series->insert(i, point);
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}
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}
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}*/
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}
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void QBarModelMapperPrivate::initializeBarFromModel()
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{
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if (m_model == 0 || m_series == 0)
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return;
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blockSeriesSignals();
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// clear current content
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m_series->clear();
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// create the initial bar sets
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for (int i = m_firstBarSection; i <= m_lastBarSection; i++) {
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int posInBar = 0;
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QModelIndex barIndex = barModelIndex(i, posInBar);
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QBarSet *barSet = new QBarSet(m_model->headerData(i, Qt::Horizontal).toString());
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// QModelIndex yIndex = yModelIndex(pointPos);
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while (barIndex.isValid()) {
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barSet->append(m_model->data(barIndex, Qt::DisplayRole).toDouble());
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posInBar++;
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barIndex = barModelIndex(i, posInBar);
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}
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m_series->append(barSet);
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}
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if (m_categoriesSection != -1) {
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int posInCategories = 0;
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QStringList categories;
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QModelIndex categoriesIndex = categoriesModelIndex(posInCategories);
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while (categoriesIndex.isValid()) {
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categories.append(m_model->data(categoriesIndex, Qt::DisplayRole).toString());
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posInCategories++;
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categoriesIndex = categoriesModelIndex(posInCategories);
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}
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m_series->setCategories(categories);
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}
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blockSeriesSignals(false);
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}
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#include "moc_qbarmodelmapper.cpp"
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#include "moc_qbarmodelmapper_p.cpp"
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QTCOMMERCIALCHART_END_NAMESPACE
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