|
|
/****************************************************************************
|
|
|
**
|
|
|
** Copyright (C) 2014 Digia Plc
|
|
|
** All rights reserved.
|
|
|
** For any questions to Digia, please use contact form at http://qt.io
|
|
|
**
|
|
|
** This file is part of the Qt Charts module.
|
|
|
**
|
|
|
** 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.
|
|
|
**
|
|
|
** If you have questions regarding the use of this file, please use
|
|
|
** contact form at http://qt.io
|
|
|
**
|
|
|
****************************************************************************/
|
|
|
|
|
|
#include <QtCharts/QXYModelMapper>
|
|
|
#include <private/qxymodelmapper_p.h>
|
|
|
#include <QtCharts/QXYSeries>
|
|
|
#include <QtCore/QAbstractItemModel>
|
|
|
#include <QtCore/QDateTime>
|
|
|
|
|
|
QT_CHARTS_BEGIN_NAMESPACE
|
|
|
|
|
|
/*!
|
|
|
Constructs a mapper object which is a child of \a parent.
|
|
|
*/
|
|
|
QXYModelMapper::QXYModelMapper(QObject *parent)
|
|
|
: QObject(parent),
|
|
|
d_ptr(new QXYModelMapperPrivate(this))
|
|
|
{
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
\internal
|
|
|
*/
|
|
|
QAbstractItemModel *QXYModelMapper::model() const
|
|
|
{
|
|
|
Q_D(const QXYModelMapper);
|
|
|
return d->m_model;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
\internal
|
|
|
*/
|
|
|
void QXYModelMapper::setModel(QAbstractItemModel *model)
|
|
|
{
|
|
|
if (model == 0)
|
|
|
return;
|
|
|
|
|
|
Q_D(QXYModelMapper);
|
|
|
if (d->m_model)
|
|
|
disconnect(d->m_model, 0, d, 0);
|
|
|
|
|
|
d->m_model = model;
|
|
|
d->initializeXYFromModel();
|
|
|
// connect signals from the model
|
|
|
connect(d->m_model, SIGNAL(dataChanged(QModelIndex,QModelIndex)), d, SLOT(modelUpdated(QModelIndex,QModelIndex)));
|
|
|
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(modelReset()), d, SLOT(initializeXYFromModel()));
|
|
|
connect(d->m_model, SIGNAL(destroyed()), d, SLOT(handleModelDestroyed()));
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
\internal
|
|
|
*/
|
|
|
QXYSeries *QXYModelMapper::series() const
|
|
|
{
|
|
|
Q_D(const QXYModelMapper);
|
|
|
return d->m_series;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
\internal
|
|
|
*/
|
|
|
void QXYModelMapper::setSeries(QXYSeries *series)
|
|
|
{
|
|
|
Q_D(QXYModelMapper);
|
|
|
if (d->m_series)
|
|
|
disconnect(d->m_series, 0, d, 0);
|
|
|
|
|
|
if (series == 0)
|
|
|
return;
|
|
|
|
|
|
d->m_series = series;
|
|
|
d->initializeXYFromModel();
|
|
|
// connect the signals from the series
|
|
|
connect(d->m_series, SIGNAL(pointAdded(int)), d, SLOT(handlePointAdded(int)));
|
|
|
connect(d->m_series, SIGNAL(pointRemoved(int)), d, SLOT(handlePointRemoved(int)));
|
|
|
connect(d->m_series, SIGNAL(pointReplaced(int)), d, SLOT(handlePointReplaced(int)));
|
|
|
connect(d->m_series, SIGNAL(destroyed()), d, SLOT(handleSeriesDestroyed()));
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
\internal
|
|
|
*/
|
|
|
int QXYModelMapper::first() const
|
|
|
{
|
|
|
Q_D(const QXYModelMapper);
|
|
|
return d->m_first;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
\internal
|
|
|
*/
|
|
|
void QXYModelMapper::setFirst(int first)
|
|
|
{
|
|
|
Q_D(QXYModelMapper);
|
|
|
d->m_first = qMax(first, 0);
|
|
|
d->initializeXYFromModel();
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
\internal
|
|
|
*/
|
|
|
int QXYModelMapper::count() const
|
|
|
{
|
|
|
Q_D(const QXYModelMapper);
|
|
|
return d->m_count;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
\internal
|
|
|
*/
|
|
|
void QXYModelMapper::setCount(int count)
|
|
|
{
|
|
|
Q_D(QXYModelMapper);
|
|
|
d->m_count = qMax(count, -1);
|
|
|
d->initializeXYFromModel();
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Returns the orientation that is used when QXYModelMapper accesses the model.
|
|
|
This mean whether the consecutive x/y values of the QXYSeries are read from rows (Qt::Horizontal)
|
|
|
or from columns (Qt::Vertical)
|
|
|
*/
|
|
|
Qt::Orientation QXYModelMapper::orientation() const
|
|
|
{
|
|
|
Q_D(const QXYModelMapper);
|
|
|
return d->m_orientation;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Returns the \a orientation that is used when QXYModelMapper accesses the model.
|
|
|
This mean whether the consecutive x/y values of the QXYSeries are read from rows (Qt::Horizontal)
|
|
|
or from columns (Qt::Vertical)
|
|
|
*/
|
|
|
void QXYModelMapper::setOrientation(Qt::Orientation orientation)
|
|
|
{
|
|
|
Q_D(QXYModelMapper);
|
|
|
d->m_orientation = orientation;
|
|
|
d->initializeXYFromModel();
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Returns which section of the model is kept in sync with the x values of the QXYSeries
|
|
|
*/
|
|
|
int QXYModelMapper::xSection() const
|
|
|
{
|
|
|
Q_D(const QXYModelMapper);
|
|
|
return d->m_xSection;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Sets the model section that is kept in sync with the x values of the QXYSeries.
|
|
|
Parameter \a xSection specifies the section of the model.
|
|
|
*/
|
|
|
void QXYModelMapper::setXSection(int xSection)
|
|
|
{
|
|
|
Q_D(QXYModelMapper);
|
|
|
d->m_xSection = qMax(-1, xSection);
|
|
|
d->initializeXYFromModel();
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Returns which section of the model is kept in sync with the y values of the QXYSeries
|
|
|
*/
|
|
|
int QXYModelMapper::ySection() const
|
|
|
{
|
|
|
Q_D(const QXYModelMapper);
|
|
|
return d->m_ySection;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Sets the model section that is kept in sync with the y values of the QXYSeries.
|
|
|
Parameter \a ySection specifies the section of the model.
|
|
|
*/
|
|
|
void QXYModelMapper::setYSection(int ySection)
|
|
|
{
|
|
|
Q_D(QXYModelMapper);
|
|
|
d->m_ySection = qMax(-1, ySection);
|
|
|
d->initializeXYFromModel();
|
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
QXYModelMapperPrivate::QXYModelMapperPrivate(QXYModelMapper *q) :
|
|
|
QObject(q),
|
|
|
m_series(0),
|
|
|
m_model(0),
|
|
|
m_first(0),
|
|
|
m_count(-1),
|
|
|
m_orientation(Qt::Vertical),
|
|
|
m_xSection(-1),
|
|
|
m_ySection(-1),
|
|
|
m_seriesSignalsBlock(false),
|
|
|
m_modelSignalsBlock(false),
|
|
|
q_ptr(q)
|
|
|
{
|
|
|
}
|
|
|
|
|
|
void QXYModelMapperPrivate::blockModelSignals(bool block)
|
|
|
{
|
|
|
m_modelSignalsBlock = block;
|
|
|
}
|
|
|
|
|
|
void QXYModelMapperPrivate::blockSeriesSignals(bool block)
|
|
|
{
|
|
|
m_seriesSignalsBlock = block;
|
|
|
}
|
|
|
|
|
|
QModelIndex QXYModelMapperPrivate::xModelIndex(int xPos)
|
|
|
{
|
|
|
if (m_count != -1 && xPos >= m_count)
|
|
|
return QModelIndex(); // invalid
|
|
|
|
|
|
if (m_orientation == Qt::Vertical)
|
|
|
return m_model->index(xPos + m_first, m_xSection);
|
|
|
else
|
|
|
return m_model->index(m_xSection, xPos + m_first);
|
|
|
}
|
|
|
|
|
|
QModelIndex QXYModelMapperPrivate::yModelIndex(int yPos)
|
|
|
{
|
|
|
if (m_count != -1 && yPos >= m_count)
|
|
|
return QModelIndex(); // invalid
|
|
|
|
|
|
if (m_orientation == Qt::Vertical)
|
|
|
return m_model->index(yPos + m_first, m_ySection);
|
|
|
else
|
|
|
return m_model->index(m_ySection, yPos + m_first);
|
|
|
}
|
|
|
|
|
|
qreal QXYModelMapperPrivate::valueFromModel(QModelIndex index)
|
|
|
{
|
|
|
QVariant value = m_model->data(index, Qt::DisplayRole);
|
|
|
switch (value.type()) {
|
|
|
case QVariant::DateTime:
|
|
|
return value.toDateTime().toMSecsSinceEpoch();
|
|
|
case QVariant::Date:
|
|
|
return QDateTime(value.toDate()).toMSecsSinceEpoch();
|
|
|
default:
|
|
|
return value.toReal();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void QXYModelMapperPrivate::setValueToModel(QModelIndex index, qreal value)
|
|
|
{
|
|
|
QVariant oldValue = m_model->data(index, Qt::DisplayRole);
|
|
|
switch (oldValue.type()) {
|
|
|
case QVariant::DateTime:
|
|
|
m_model->setData(index, QDateTime::fromMSecsSinceEpoch(value));
|
|
|
break;
|
|
|
case QVariant::Date:
|
|
|
m_model->setData(index, QDateTime::fromMSecsSinceEpoch(value).date());
|
|
|
break;
|
|
|
default:
|
|
|
m_model->setData(index, value);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void QXYModelMapperPrivate::handlePointAdded(int pointPos)
|
|
|
{
|
|
|
if (m_seriesSignalsBlock)
|
|
|
return;
|
|
|
|
|
|
if (m_count != -1)
|
|
|
m_count += 1;
|
|
|
|
|
|
blockModelSignals();
|
|
|
if (m_orientation == Qt::Vertical)
|
|
|
m_model->insertRows(pointPos + m_first, 1);
|
|
|
else
|
|
|
m_model->insertColumns(pointPos + m_first, 1);
|
|
|
|
|
|
setValueToModel(xModelIndex(pointPos), m_series->points().at(pointPos).x());
|
|
|
setValueToModel(yModelIndex(pointPos), m_series->points().at(pointPos).y());
|
|
|
blockModelSignals(false);
|
|
|
}
|
|
|
|
|
|
void QXYModelMapperPrivate::handlePointRemoved(int pointPos)
|
|
|
{
|
|
|
if (m_seriesSignalsBlock)
|
|
|
return;
|
|
|
|
|
|
if (m_count != -1)
|
|
|
m_count -= 1;
|
|
|
|
|
|
blockModelSignals();
|
|
|
if (m_orientation == Qt::Vertical)
|
|
|
m_model->removeRow(pointPos + m_first);
|
|
|
else
|
|
|
m_model->removeColumn(pointPos + m_first);
|
|
|
blockModelSignals(false);
|
|
|
}
|
|
|
|
|
|
void QXYModelMapperPrivate::handlePointReplaced(int pointPos)
|
|
|
{
|
|
|
if (m_seriesSignalsBlock)
|
|
|
return;
|
|
|
|
|
|
blockModelSignals();
|
|
|
setValueToModel(xModelIndex(pointPos), m_series->points().at(pointPos).x());
|
|
|
setValueToModel(yModelIndex(pointPos), m_series->points().at(pointPos).y());
|
|
|
blockModelSignals(false);
|
|
|
}
|
|
|
|
|
|
void QXYModelMapperPrivate::handleSeriesDestroyed()
|
|
|
{
|
|
|
m_series = 0;
|
|
|
}
|
|
|
|
|
|
void QXYModelMapperPrivate::modelUpdated(QModelIndex topLeft, QModelIndex bottomRight)
|
|
|
{
|
|
|
if (m_model == 0 || m_series == 0)
|
|
|
return;
|
|
|
|
|
|
if (m_modelSignalsBlock)
|
|
|
return;
|
|
|
|
|
|
blockSeriesSignals();
|
|
|
QModelIndex index;
|
|
|
QPointF oldPoint;
|
|
|
QPointF newPoint;
|
|
|
for (int row = topLeft.row(); row <= bottomRight.row(); row++) {
|
|
|
for (int column = topLeft.column(); column <= bottomRight.column(); column++) {
|
|
|
index = topLeft.sibling(row, column);
|
|
|
if (m_orientation == Qt::Vertical && (index.column() == m_xSection || index.column() == m_ySection)) {
|
|
|
if (index.row() >= m_first && (m_count == - 1 || index.row() < m_first + m_count)) {
|
|
|
QModelIndex xIndex = xModelIndex(index.row() - m_first);
|
|
|
QModelIndex yIndex = yModelIndex(index.row() - m_first);
|
|
|
if (xIndex.isValid() && yIndex.isValid()) {
|
|
|
oldPoint = m_series->points().at(index.row() - m_first);
|
|
|
newPoint.setX(valueFromModel(xIndex));
|
|
|
newPoint.setY(valueFromModel(yIndex));
|
|
|
}
|
|
|
}
|
|
|
} else if (m_orientation == Qt::Horizontal && (index.row() == m_xSection || index.row() == m_ySection)) {
|
|
|
if (index.column() >= m_first && (m_count == - 1 || index.column() < m_first + m_count)) {
|
|
|
QModelIndex xIndex = xModelIndex(index.column() - m_first);
|
|
|
QModelIndex yIndex = yModelIndex(index.column() - m_first);
|
|
|
if (xIndex.isValid() && yIndex.isValid()) {
|
|
|
oldPoint = m_series->points().at(index.column() - m_first);
|
|
|
newPoint.setX(valueFromModel(xIndex));
|
|
|
newPoint.setY(valueFromModel(yIndex));
|
|
|
}
|
|
|
}
|
|
|
} else {
|
|
|
continue;
|
|
|
}
|
|
|
m_series->replace(oldPoint, newPoint);
|
|
|
}
|
|
|
}
|
|
|
blockSeriesSignals(false);
|
|
|
}
|
|
|
|
|
|
void QXYModelMapperPrivate::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_xSection || start <= m_ySection) // if the changes affect the map - reinitialize the xy
|
|
|
initializeXYFromModel();
|
|
|
blockSeriesSignals(false);
|
|
|
}
|
|
|
|
|
|
void QXYModelMapperPrivate::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_xSection || start <= m_ySection) // if the changes affect the map - reinitialize the xy
|
|
|
initializeXYFromModel();
|
|
|
blockSeriesSignals(false);
|
|
|
}
|
|
|
|
|
|
void QXYModelMapperPrivate::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_xSection || start <= m_ySection) // if the changes affect the map - reinitialize the xy
|
|
|
initializeXYFromModel();
|
|
|
blockSeriesSignals(false);
|
|
|
}
|
|
|
|
|
|
void QXYModelMapperPrivate::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_xSection || start <= m_ySection) // if the changes affect the map - reinitialize the xy
|
|
|
initializeXYFromModel();
|
|
|
blockSeriesSignals(false);
|
|
|
}
|
|
|
|
|
|
void QXYModelMapperPrivate::handleModelDestroyed()
|
|
|
{
|
|
|
m_model = 0;
|
|
|
}
|
|
|
|
|
|
void QXYModelMapperPrivate::insertData(int start, int end)
|
|
|
{
|
|
|
if (m_model == 0 || m_series == 0)
|
|
|
return;
|
|
|
|
|
|
if (m_count != -1 && start >= m_first + m_count) {
|
|
|
return;
|
|
|
} else {
|
|
|
int addedCount = end - start + 1;
|
|
|
if (m_count != -1 && addedCount > m_count)
|
|
|
addedCount = m_count;
|
|
|
int first = qMax(start, m_first);
|
|
|
int last = qMin(first + addedCount - 1, m_orientation == Qt::Vertical ? m_model->rowCount() - 1 : m_model->columnCount() - 1);
|
|
|
for (int i = first; i <= last; i++) {
|
|
|
QPointF point;
|
|
|
QModelIndex xIndex = xModelIndex(i - m_first);
|
|
|
QModelIndex yIndex = yModelIndex(i - m_first);
|
|
|
if (xIndex.isValid() && yIndex.isValid()) {
|
|
|
point.setX(valueFromModel(xIndex));
|
|
|
point.setY(valueFromModel(yIndex));
|
|
|
m_series->insert(i - m_first, point);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
// remove excess of points (above m_count)
|
|
|
if (m_count != -1 && m_series->points().size() > m_count)
|
|
|
for (int i = m_series->points().size() - 1; i >= m_count; i--) {
|
|
|
m_series->remove(m_series->points().at(i));
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void QXYModelMapperPrivate::removeData(int start, int end)
|
|
|
{
|
|
|
if (m_model == 0 || m_series == 0)
|
|
|
return;
|
|
|
|
|
|
int removedCount = end - start + 1;
|
|
|
if (m_count != -1 && start >= m_first + m_count) {
|
|
|
return;
|
|
|
} else {
|
|
|
int toRemove = qMin(m_series->count(), removedCount); // first find how many items can actually be removed
|
|
|
int first = qMax(start, m_first); // get the index of the first item that will be removed.
|
|
|
int last = qMin(first + toRemove - 1, m_series->count() + m_first - 1); // get the index of the last item that will be removed.
|
|
|
for (int i = last; i >= first; i--) {
|
|
|
m_series->remove(m_series->points().at(i - m_first));
|
|
|
}
|
|
|
|
|
|
if (m_count != -1) {
|
|
|
int itemsAvailable; // check how many are available to be added
|
|
|
if (m_orientation == Qt::Vertical)
|
|
|
itemsAvailable = m_model->rowCount() - m_first - m_series->count();
|
|
|
else
|
|
|
itemsAvailable = m_model->columnCount() - m_first - m_series->count();
|
|
|
int toBeAdded = qMin(itemsAvailable, m_count - m_series->count()); // add not more items than there is space left to be filled.
|
|
|
int currentSize = m_series->count();
|
|
|
if (toBeAdded > 0)
|
|
|
for (int i = m_series->count(); i < currentSize + toBeAdded; i++) {
|
|
|
QPointF point;
|
|
|
QModelIndex xIndex = xModelIndex(i);
|
|
|
QModelIndex yIndex = yModelIndex(i);
|
|
|
if (xIndex.isValid() && yIndex.isValid()) {
|
|
|
point.setX(valueFromModel(xIndex));
|
|
|
point.setY(valueFromModel(yIndex));
|
|
|
m_series->insert(i, point);
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void QXYModelMapperPrivate::initializeXYFromModel()
|
|
|
{
|
|
|
if (m_model == 0 || m_series == 0)
|
|
|
return;
|
|
|
|
|
|
blockSeriesSignals();
|
|
|
// clear current content
|
|
|
m_series->clear();
|
|
|
|
|
|
// create the initial points set
|
|
|
int pointPos = 0;
|
|
|
QModelIndex xIndex = xModelIndex(pointPos);
|
|
|
QModelIndex yIndex = yModelIndex(pointPos);
|
|
|
while (xIndex.isValid() && yIndex.isValid()) {
|
|
|
QPointF point;
|
|
|
point.setX(valueFromModel(xIndex));
|
|
|
point.setY(valueFromModel(yIndex));
|
|
|
m_series->append(point);
|
|
|
pointPos++;
|
|
|
xIndex = xModelIndex(pointPos);
|
|
|
yIndex = yModelIndex(pointPos);
|
|
|
}
|
|
|
blockSeriesSignals(false);
|
|
|
}
|
|
|
|
|
|
#include "moc_qxymodelmapper.cpp"
|
|
|
#include "moc_qxymodelmapper_p.cpp"
|
|
|
|
|
|
QT_CHARTS_END_NAMESPACE
|
|
|
|
