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// Copyright (C) 2024 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
// W A R N I N G
// -------------
//
// This file is not part of the QtGraphs API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
#ifndef QPIEMODELMAPPER_P_H
#define QPIEMODELMAPPER_P_H
#include <QtGraphs/qpiemodelmapper.h>
#include <private/qobject_p.h>
QT_BEGIN_NAMESPACE
class QPieSlice;
class QPieSeries;
class QAbstractItemModel;
class QPieModelMapperPrivate : public QObjectPrivate
{
Q_DECLARE_PUBLIC(QPieModelMapper)
public:
explicit QPieModelMapperPrivate();
~QPieModelMapperPrivate() override;
void onSliceLabelChanged(const QPieSlice *slice);
void onSliceValueChanged(const QPieSlice *slice);
public Q_SLOTS:
// for the model
void onModelUpdated(QModelIndex topLeft, QModelIndex bottomRight);
void onModelRowsAdded(QModelIndex parent, qsizetype start, qsizetype end);
void onModelRowsRemoved(QModelIndex parent, qsizetype start, qsizetype end);
void onModelColumnsAdded(QModelIndex parent, qsizetype start, qsizetype end);
void onModelColumnsRemoved(QModelIndex parent, qsizetype start, qsizetype end);
void handleModelDestroyed();
// for the series
void onSlicesAdded(const QList<QPieSlice *> &slices);
void onSlicesRemoved(const QList<QPieSlice *> &slices);
void handleSeriesDestroyed();
void initializePieFromModel();
private:
QPieSlice *pieSlice(QModelIndex index) const;
bool isLabelIndex(QModelIndex index) const;
bool isValueIndex(QModelIndex index) const;
QModelIndex valueModelIndex(qsizetype sliceIndex);
QModelIndex labelModelIndex(qsizetype sliceIndex);
void insertData(qsizetype start, qsizetype end);
void removeData(qsizetype start, qsizetype end);
void blockModelSignals(bool block = true);
void blockSeriesSignals(bool block = true);
private:
QPieSeries *m_series = nullptr;
QList<QPieSlice *> m_slices;
QAbstractItemModel *m_model = nullptr;
qsizetype m_first = 0;
qsizetype m_count = -1;
Qt::Orientation m_orientation = Qt::Vertical;
qsizetype m_valuesSection = -1;
qsizetype m_labelsSection = -1;
bool m_seriesSignalsBlock = false;
bool m_modelSignalsBlock = false;
Q_DISABLE_COPY_MOVE(QPieModelMapperPrivate)
};
QT_END_NAMESPACE
#endif // QPIEMODELMAPPER_P_H
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