/////////////////////////////////////////////////////////////////////////////////
//
//  Copyright (C) 2017-     Statoil ASA
// 
//  ResInsight is free software: you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation, either version 3 of the License, or
//  (at your option) any later version.
// 
//  ResInsight 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 General Public License at <http://www.gnu.org/licenses/gpl.html> 
//  for more details.
//
/////////////////////////////////////////////////////////////////////////////////

#pragma once

#include "cafPdmUiDragDropInterface.h"
#include "cafPdmPointer.h"
#include "cafPdmObjectGroup.h"

#include <vector>

namespace caf
{
    class PdmObjectHandle;
}

class RimIdenticalGridCaseGroup;
class RimSummaryCaseCollection;
class RimSummaryCaseMainCollection;
class RimWellLogPlot;
class RimWellLogTrack;
class RimWellLogCurve;

//--------------------------------------------------------------------------------------------------
/// 
//--------------------------------------------------------------------------------------------------
class RiuDragDrop : public caf::PdmUiDragDropInterface
{
public:
    RiuDragDrop();
    ~RiuDragDrop() override;
    
protected:
    Qt::DropActions supportedDropActions() const override;
    Qt::ItemFlags flags(const QModelIndex &index) const override;
    bool dropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) override;
    QMimeData* mimeData(const QModelIndexList &indexes) const override;
    QStringList mimeTypes() const override;

    void onDragCanceled() override;
    void onProposedDropActionUpdated(Qt::DropAction action) override;

private:
    void moveCasesToGridGroup(caf::PdmObjectGroup& objectGroup, RimIdenticalGridCaseGroup* gridCaseGroup);
    bool handleGridCaseGroupDrop(Qt::DropAction action, caf::PdmObjectGroup& objectGroup, RimIdenticalGridCaseGroup* gridCaseGroup);
    bool handleWellLogPlotTrackDrop(Qt::DropAction action, caf::PdmObjectGroup& objectGroup, RimWellLogTrack* wellLogPlotTrack);
    bool handleWellLogPlotDrop(Qt::DropAction action, caf::PdmObjectGroup& objectGroup, RimWellLogPlot* wellLogPlot);
    bool handleWellLogPlotCurveDrop(Qt::DropAction action, caf::PdmObjectGroup& objectGroup, RimWellLogCurve* wellLogPlotCurve);
    bool handleSummaryCaseCollectionDrop(Qt::DropAction action, caf::PdmObjectGroup& objectGroup, RimSummaryCaseCollection* summaryCaseCollection);
    bool handleSummaryCaseMainCollectionDrop(Qt::DropAction action, caf::PdmObjectGroup& objectGroup, RimSummaryCaseMainCollection* summaryCaseMainCollection);

    static void objectGroupFromModelIndexes(caf::PdmObjectGroup* objectGroup, const QModelIndexList &indexes);
    static std::vector<caf::PdmPointer<caf::PdmObjectHandle> > objectHandlesFromSelection();

private:
    mutable std::vector<caf::PdmPointer<caf::PdmObjectHandle> > m_dragItems;
    Qt::DropAction m_proposedDropAction;
};