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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 QtDataVis3D 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 "qmapdataproxy.h"
#include "qmapdataproxy_p.h"
QT_DATAVIS3D_BEGIN_NAMESPACE
/*!
* \class QMapDataProxy
* \inmodule QtDataVis3D
* \brief Proxy class for Q3DMaps.
* \since 1.0.0
*
* QMapDataProxy handles adding, inserting, changing and removing data.
*
* QMapDataProxy takes ownership of all QMapDataArrays and QMapDataItems passed to it.
*/
/*!
* Constructs QMapDataProxy with the given \a parent.
*/
QMapDataProxy::QMapDataProxy(QObject *parent) :
QAbstractDataProxy(new QMapDataProxyPrivate(this), parent)
{
}
/*!
* \internal
*/
QMapDataProxy::QMapDataProxy(QMapDataProxyPrivate *d, QObject *parent) :
QAbstractDataProxy(d, parent)
{
}
/*!
* Destroys QMapDataProxy.
*/
QMapDataProxy::~QMapDataProxy()
{
}
/*!
* Clears the existing array and takes ownership of the \a newArray. Do not use \a newArray pointer
* to further modify data after QMapDataProxy assumes ownership of it, as such modifications will
* not trigger proper signals.
* Passing null array clears all data.
*/
void QMapDataProxy::resetArray(QMapDataArray *newArray)
{
if (dptr()->resetArray(newArray))
emit arrayReset();
}
/*!
* \return item count in the array.
*/
int QMapDataProxy::itemCount() const
{
return dptrc()->m_dataArray.size();
}
/*!
* \return pointer to the data array.
*/
const QMapDataArray *QMapDataProxy::array() const
{
return &dptrc()->m_dataArray;
}
/*!
* \return pointer to the item at \a index. It is guaranteed to be valid only until next call
* that modifies data.
*/
const QMapDataItem *QMapDataProxy::itemAt(int index) const
{
return &dptrc()->m_dataArray.at(index);
}
/*!
* \internal
*/
QMapDataProxyPrivate *QMapDataProxy::dptr()
{
return static_cast<QMapDataProxyPrivate *>(d_ptr.data());
}
/*!
* \internal
*/
const QMapDataProxyPrivate *QMapDataProxy::dptrc() const
{
return static_cast<const QMapDataProxyPrivate *>(d_ptr.data());
}
/*!
* \fn void QMapDataProxy::arrayReset()
*
* Emitted when data array is reset.
*/
/*!
* \fn void QMapDataProxy::itemsAdded(int startIndex, int count)
*
* Emitted when items have been added. Provides \a startIndex and \a count of items added.
*/
/*!
* \fn void QMapDataProxy::itemsChanged(int startIndex, int count)
*
* Emitted when items have changed. Provides \a startIndex and \a count of changed items.
*/
/*!
* \fn void QMapDataProxy::itemsRemoved(int startIndex, int count)
*
* Emitted when items have been removed. Provides \a startIndex and \a count of items removed.
* Index may be over current array size if removed from end.
*/
/*!
* \fn void QMapDataProxy::itemsInserted(int startIndex, int count)
*
* Emitted when items have been inserted. Provides \a startIndex and \a count of inserted items.
*/
// QBarDataProxyPrivate
QMapDataProxyPrivate::QMapDataProxyPrivate(QMapDataProxy *q)
: QAbstractDataProxyPrivate(q, QAbstractDataProxy::DataTypeMap)
{
}
QMapDataProxyPrivate::~QMapDataProxyPrivate()
{
m_dataArray.clear();
}
bool QMapDataProxyPrivate::resetArray(QMapDataArray *newArray)
{
if (!m_dataArray.size() && (!newArray || !newArray->size()))
return false;
m_dataArray.clear();
if (newArray) {
m_dataArray = *newArray;
delete newArray;
}
return true;
}
QPair<GLfloat, GLfloat> QMapDataProxyPrivate::limitValues()
{
QPair<GLfloat, GLfloat> limits = qMakePair(0.0f, 0.0f);
for (int i = 0; i < m_dataArray.size(); i++) {
const QMapDataItem &item = m_dataArray.at(i);
qreal itemValue = item.value();
if (limits.second < itemValue)
limits.second = itemValue;
if (limits.first > itemValue)
limits.first = itemValue;
}
return limits;
}
QT_DATAVIS3D_END_NAMESPACE
|
