entityorderproxymodel.h

/*
    Copyright (C) 2010 Klarälvdalens Datakonsult AB,
        a KDAB Group company, [email protected],
        author Stephen Kelly <[email protected]>

    This library is free software; you can redistribute it and/or modify it
    under the terms of the GNU Library General Public License as published by
    the Free Software Foundation; either version 2 of the License, or (at your
    option) any later version.

    This library is distributed in the hope that it will be useful, but WITHOUT
    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
    License for more details.

    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to the
    Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
    02110-1301, USA.
*/

#ifndef AKONADI_ENTITYORDERPROXYMODEL_H
#define AKONADI_ENTITYORDERPROXYMODEL_H

#include "akonadicore_export.h"
#include "collection.h"

#include <QSortFilterProxyModel>

class KConfigGroup;

namespace Akonadi
{
class EntityOrderProxyModelPrivate;

class AKONADICORE_EXPORT EntityOrderProxyModel : public QSortFilterProxyModel
{
    Q_OBJECT

public:
    explicit EntityOrderProxyModel(QObject *parent = nullptr);

    ~EntityOrderProxyModel() override;

    void setOrderConfig(const KConfigGroup &group);

    void saveOrder();

    void clearOrder(const QModelIndex &index);
    void clearTreeOrder();

    Q_REQUIRED_RESULT bool lessThan(const QModelIndex &left, const QModelIndex &right) const override;

    Q_REQUIRED_RESULT bool dropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) override;

    Q_REQUIRED_RESULT QModelIndexList match(const QModelIndex &start, int role, const QVariant &value, int hits = 1,
                          Qt::MatchFlags flags = Qt::MatchFlags(Qt::MatchStartsWith | Qt::MatchWrap)) const override;

protected:
    EntityOrderProxyModelPrivate *const d_ptr;

    virtual QString parentConfigString(const QModelIndex &index) const;
    virtual QString configString(const QModelIndex &index) const;
    virtual Akonadi::Collection parentCollection(const QModelIndex &index) const;

private:
    QStringList configStringsForDroppedUrls(const QList<QUrl> &urls, const Akonadi::Collection &parentCol, bool *containsMove) const;

    //@cond PRIVATE
    Q_DECLARE_PRIVATE(EntityOrderProxyModel)
    //@endcond
};

}

#endif