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// Copyright (C) 2023 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#ifndef VARIANTBARDATAPROXY_H
#define VARIANTBARDATAPROXY_H
#include "variantdataset.h"
#include "variantbardatamapping.h"
#include <QtDataVisualization/qbardataproxy.h>
#include <QtCore/qpointer.h>
//! [0]
class VariantBarDataProxy : public QBarDataProxy
//! [0]
{
Q_OBJECT
public:
VariantBarDataProxy();
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 Q_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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