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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc
** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.digia.com
**
** This file is part of the QtDataVisualization module.
**
** Licensees holding valid Qt Enterprise licenses may use this file in
** accordance with the Qt Enterprise License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.digia.com
**
****************************************************************************/
#include "qitemmodelscatterdataproxy_p.h"
#include "scatteritemmodelhandler_p.h"
#include <QTimer>
QT_BEGIN_NAMESPACE_DATAVISUALIZATION
/*!
* \class QItemModelScatterDataProxy
* \inmodule QtDataVisualization
* \brief Proxy class for presenting data in item models with Q3DScatter.
* \since Qt Data Visualization 1.0
*
* QItemModelScatterDataProxy allows you to use QAbstractItemModel derived models as a data source
* for Q3DScatter. It maps roles of QAbstractItemModel to the XYZ-values of Q3DScatter points.
*
* The data is resolved asynchronously whenever the mapping or the model changes.
* QScatterDataProxy::arrayReset() is emitted when the data has been resolved. However, inserts,
* removes, and single data item changes after the model initialization are resolved synchronously,
* unless the same frame also contains a change that causes the whole model to be resolved.
*
* Mapping ignores rows and columns of the QAbstractItemModel and treats
* all items equally. It requires the model to provide at least three roles for the data items
* that can be mapped to X, Y, and Z-values for the scatter points.
*
* For example, assume that you have a custom QAbstractItemModel for storing various measurements
* done on material samples, providing data for roles such as "density", "hardness", and
* "conductivity". You could visualize these properties on a scatter graph using this proxy:
*
* \snippet doc_src_qtdatavisualization.cpp 4
*
* \sa {Qt Data Visualization Data Handling}
*/
/*!
* \qmltype ItemModelScatterDataProxy
* \inqmlmodule QtDataVisualization
* \since QtDataVisualization 1.0
* \ingroup datavisualization_qml
* \instantiates QItemModelScatterDataProxy
* \inherits ScatterDataProxy
* \brief Proxy class for presenting data in item models with Scatter3D.
*
* This type allows you to use AbstractItemModel derived models as a data source for Scatter3D.
*
* The data is resolved asynchronously whenever the mapping or the model changes.
* QScatterDataProxy::arrayReset() is emitted when the data has been resolved.
*
* For more details, see QItemModelScatterDataProxy documentation.
*
* Usage example:
*
* \snippet doc_src_qmldatavisualization.cpp 8
*
* \sa ScatterDataProxy, {Qt Data Visualization Data Handling}
*/
/*!
* \qmlproperty list ItemModelScatterDataProxy::itemModel
* The item model.
*/
/*!
* \qmlproperty string ItemModelScatterDataProxy::xPosRole
* The X position role of the mapping.
*/
/*!
* \qmlproperty string ItemModelScatterDataProxy::yPosRole
* The Y position role of the mapping.
*/
/*!
* \qmlproperty string ItemModelScatterDataProxy::zPosRole
* The Z position role of the mapping.
*/
/*!
* Constructs QItemModelScatterDataProxy with optional \a parent.
*/
QItemModelScatterDataProxy::QItemModelScatterDataProxy(QObject *parent)
: QScatterDataProxy(new QItemModelScatterDataProxyPrivate(this), parent)
{
dptr()->connectItemModelHandler();
}
/*!
* Constructs QItemModelScatterDataProxy with \a itemModel and optional \a parent. Proxy doesn't take
* ownership of the \a itemModel, as typically item models are owned by other controls.
*/
QItemModelScatterDataProxy::QItemModelScatterDataProxy(const QAbstractItemModel *itemModel,
QObject *parent)
: QScatterDataProxy(new QItemModelScatterDataProxyPrivate(this), parent)
{
dptr()->m_itemModelHandler->setItemModel(itemModel);
dptr()->connectItemModelHandler();
}
/*!
* Constructs QItemModelScatterDataProxy with \a itemModel and optional \a parent. Proxy doesn't take
* ownership of the \a itemModel, as typically item models are owned by other controls.
* The xPosRole property is set to \a xPosRole, yPosRole property to \a yPosRole, and zPosRole property
* to \a zPosRole.
*/
QItemModelScatterDataProxy::QItemModelScatterDataProxy(const QAbstractItemModel *itemModel,
const QString &xPosRole,
const QString &yPosRole,
const QString &zPosRole,
QObject *parent)
: QScatterDataProxy(new QItemModelScatterDataProxyPrivate(this), parent)
{
dptr()->m_itemModelHandler->setItemModel(itemModel);
dptr()->m_xPosRole = xPosRole;
dptr()->m_yPosRole = yPosRole;
dptr()->m_zPosRole = zPosRole;
dptr()->connectItemModelHandler();
}
/*!
* Destroys QItemModelScatterDataProxy.
*/
QItemModelScatterDataProxy::~QItemModelScatterDataProxy()
{
}
/*!
* \property QItemModelScatterDataProxy::itemModel
*
* Defines the item model. Does not take ownership of the model, but does connect to it to listen for
* changes.
*/
void QItemModelScatterDataProxy::setItemModel(const QAbstractItemModel *itemModel)
{
dptr()->m_itemModelHandler->setItemModel(itemModel);
}
const QAbstractItemModel *QItemModelScatterDataProxy::itemModel() const
{
return dptrc()->m_itemModelHandler->itemModel();
}
/*!
* \property QItemModelScatterDataProxy::xPosRole
*
* Defines the X position role for the mapping.
*/
void QItemModelScatterDataProxy::setXPosRole(const QString &role)
{
if (dptr()->m_xPosRole != role) {
dptr()->m_xPosRole = role;
emit xPosRoleChanged(role);
}
}
QString QItemModelScatterDataProxy::xPosRole() const
{
return dptrc()->m_xPosRole;
}
/*!
* \property QItemModelScatterDataProxy::yPosRole
*
* Defines the Y position role for the mapping.
*/
void QItemModelScatterDataProxy::setYPosRole(const QString &role)
{
if (dptr()->m_yPosRole != role) {
dptr()->m_yPosRole = role;
emit yPosRoleChanged(role);
}
}
QString QItemModelScatterDataProxy::yPosRole() const
{
return dptrc()->m_yPosRole;
}
/*!
* \property QItemModelScatterDataProxy::zPosRole
*
* Defines the Z position role for the mapping.
*/
void QItemModelScatterDataProxy::setZPosRole(const QString &role)
{
if (dptr()->m_zPosRole != role) {
dptr()->m_zPosRole = role;
emit zPosRoleChanged(role);
}
}
QString QItemModelScatterDataProxy::zPosRole() const
{
return dptrc()->m_zPosRole;
}
/*!
* Changes \a xPosRole, \a yPosRole and \a zPosRole mapping.
*/
void QItemModelScatterDataProxy::remap(const QString &xPosRole, const QString &yPosRole,
const QString &zPosRole)
{
setXPosRole(xPosRole);
setYPosRole(yPosRole);
setZPosRole(zPosRole);
}
/*!
* \internal
*/
QItemModelScatterDataProxyPrivate *QItemModelScatterDataProxy::dptr()
{
return static_cast<QItemModelScatterDataProxyPrivate *>(d_ptr.data());
}
/*!
* \internal
*/
const QItemModelScatterDataProxyPrivate *QItemModelScatterDataProxy::dptrc() const
{
return static_cast<const QItemModelScatterDataProxyPrivate *>(d_ptr.data());
}
// QItemModelScatterDataProxyPrivate
QItemModelScatterDataProxyPrivate::QItemModelScatterDataProxyPrivate(QItemModelScatterDataProxy *q)
: QScatterDataProxyPrivate(q),
m_itemModelHandler(new ScatterItemModelHandler(q))
{
}
QItemModelScatterDataProxyPrivate::~QItemModelScatterDataProxyPrivate()
{
delete m_itemModelHandler;
}
QItemModelScatterDataProxy *QItemModelScatterDataProxyPrivate::qptr()
{
return static_cast<QItemModelScatterDataProxy *>(q_ptr);
}
void QItemModelScatterDataProxyPrivate::connectItemModelHandler()
{
QObject::connect(m_itemModelHandler, &ScatterItemModelHandler::itemModelChanged,
qptr(), &QItemModelScatterDataProxy::itemModelChanged);
QObject::connect(qptr(), &QItemModelScatterDataProxy::xPosRoleChanged,
m_itemModelHandler, &AbstractItemModelHandler::handleMappingChanged);
QObject::connect(qptr(), &QItemModelScatterDataProxy::yPosRoleChanged,
m_itemModelHandler, &AbstractItemModelHandler::handleMappingChanged);
QObject::connect(qptr(), &QItemModelScatterDataProxy::zPosRoleChanged,
m_itemModelHandler, &AbstractItemModelHandler::handleMappingChanged);
}
QT_END_NAMESPACE_DATAVISUALIZATION
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