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Check the index is within the valid range...
Check the index is within the valid range Change-Id: I6fe736f912d760b6fd5745cb4572d8cb6d3b49f0 Reviewed-by: Titta Heikkala <titta.heikkala@theqtcompany.com>
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qboxplotmodelmapper.cpp
487 lines | 15.0 KiB | text/x-c | CppLexer
/ src / charts / boxplotchart / qboxplotmodelmapper.cpp
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Mika Salmela
A new box-and-whiskers series type added to charts....
 r2548 /****************************************************************************
**
Titta Heikkala
Update copyright year...
 r2688 ** Copyright (C) 2014 Digia Plc
Mika Salmela
A new box-and-whiskers series type added to charts....
 r2548 ** All rights reserved.
Titta Heikkala
Updated license headers...
 r2740 ** For any questions to Digia, please use contact form at http://qt.io
Mika Salmela
A new box-and-whiskers series type added to charts....
 r2548 **
Titta Heikkala
Updated license headers...
 r2740 ** This file is part of the Qt Charts module.
Mika Salmela
A new box-and-whiskers series type added to charts....
 r2548 **
Titta Heikkala
Updated license headers...
 r2740 ** Licensees holding valid commercial license for Qt may use this file in
** accordance with the Qt License Agreement provided with the Software
** or, alternatively, in accordance with the terms contained in a written
** agreement between you and Digia.
Mika Salmela
A new box-and-whiskers series type added to charts....
 r2548 **
** If you have questions regarding the use of this file, please use
Titta Heikkala
Updated license headers...
 r2740 ** contact form at http://qt.io
Mika Salmela
A new box-and-whiskers series type added to charts....
 r2548 **
****************************************************************************/
Titta Heikkala
Fix include syntax...
 r2714 #include <QtCharts/QBoxPlotModelMapper>
#include <private/qboxplotmodelmapper_p.h>
#include <QtCharts/QBoxPlotSeries>
#include <QtCharts/QBoxSet>
#include <QtCharts/QChart>
#include <QtCore/QAbstractItemModel>
Mika Salmela
A new box-and-whiskers series type added to charts....
 r2548
Titta Heikkala
Qt Charts project file structure change...
 r2712 QT_CHARTS_BEGIN_NAMESPACE
Mika Salmela
A new box-and-whiskers series type added to charts....
 r2548
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"
Titta Heikkala
Qt Charts project file structure change...
 r2712 QT_CHARTS_END_NAMESPACE
Mika Salmela
A new box-and-whiskers series type added to charts....
 r2548