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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
**
****************************************************************************/
#ifndef VARIANTBARDATAPROXY_H
#define VARIANTBARDATAPROXY_H
#include "qbardataproxy.h"
#include "variantdataset.h"
#include "variantbardatamapping.h"
#include <QStringList>
#include <QMap>
#include <QPointer>
using namespace QtDataVisualization;
//! [0]
class VariantBarDataProxy : public QBarDataProxy
//! [0]
{
Q_OBJECT
public:
explicit VariantBarDataProxy();
explicit VariantBarDataProxy(VariantDataSet *newSet, VariantBarDataMapping *mapping);
virtual ~VariantBarDataProxy();
//! [1]
// Doesn't gain ownership of the dataset, but does connect to it to listen for data changes.
void setDataSet(VariantDataSet *newSet);
VariantDataSet *dataSet();
// Map key (row, column, value) to value index in data item (VariantItem).
// Doesn't gain ownership of mapping, but does connect to it to listen for mapping changes.
// Modifying mapping that is set to proxy will trigger dataset re-resolving.
void setMapping(VariantBarDataMapping *mapping);
VariantBarDataMapping *mapping();
//! [1]
public slots:
void handleItemsAdded(int index, int count);
void handleDataCleared();
void handleMappingChanged();
private:
void resolveDataSet();
QPointer<VariantDataSet> m_dataSet;
QPointer<VariantBarDataMapping> m_mapping;
Q_DISABLE_COPY(VariantBarDataProxy)
};
#endif
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