/*
 * SPDX-FileCopyrightText: 2001-2015 Klaralvdalens Datakonsult AB. All rights reserved.
 *
 * This file is part of the KGantt library.
 *
 * SPDX-License-Identifier: GPL-2.0-or-later
 */

#ifndef KGANTTCONSTRAINTPROXY_H
#define KGANTTCONSTRAINTPROXY_H

#include "kganttglobal.h"

#include <QPointer>

QT_BEGIN_NAMESPACE
class QAbstractProxyModel;
QT_END_NAMESPACE

namespace KGantt
{
class Constraint;
class ConstraintModel;

/*!\class KGantt::ConstraintProxy
 * \internal
 */
class KGANTT_EXPORT ConstraintProxy : public QObject
{
    Q_OBJECT
public:
    explicit ConstraintProxy(QObject *parent = nullptr);
    ~ConstraintProxy() override;

    void setSourceModel(ConstraintModel *src);
    void setDestinationModel(ConstraintModel *dest);
    void setProxyModel(QAbstractProxyModel *proxy);

    ConstraintModel *sourceModel() const;
    ConstraintModel *destinationModel() const;
    QAbstractProxyModel *proxyModel() const;

private Q_SLOTS:

    void slotSourceConstraintAdded(const KGantt::Constraint &);
    void slotSourceConstraintRemoved(const KGantt::Constraint &);

    void slotDestinationConstraintAdded(const KGantt::Constraint &);
    void slotDestinationConstraintRemoved(const KGantt::Constraint &);

    void slotLayoutChanged();

private:
    void copyFromSource();

    QPointer<QAbstractProxyModel> m_proxy;
    QPointer<ConstraintModel> m_source;
    QPointer<ConstraintModel> m_destination;
};
}

#endif /* KGANTTCONSTRAINTPROXY_H */
