versionstreeview.h

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/* ============================================================
 *
 * This file is a part of digiKam project
 * https://www.digikam.org
 *
 * Date        : 2010-12-26
 * Description : images versions QTreeView
 *
 * Copyright (C) 2010 by Martin Klapetek <martin dot klapetek at gmail dot com>
 * Copyright (C) 2010 by Marcel Wiesweg <marcel dot wiesweg at gmx dot de>
 *
 * This program 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 2, or (at your option)
 * any later version.
 *
 * This program 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 for more details.
 *
 * ============================================================ */
 
#ifndef DIGIKAM_VERSIONS_TREEVIEW_H
#define DIGIKAM_VERSIONS_TREEVIEW_H
 
// Qt includes
 
#include <QTreeView>
 
// Local includes
 
#include "digikam_export.h"
#include "dragdropimplementations.h"
 
namespace Digikam
{
 
class VersionsDelegate;
class ItemDelegateOverlay;
 
class VersionsTreeView : public QTreeView,
                         public DragDropViewImplementation
{
    Q_OBJECT
 
public:
 
    explicit VersionsTreeView(QWidget* const parent = nullptr);
    ~VersionsTreeView()                                                override;
 
    void setToolTipEnabled(bool on);
 
    void addOverlay(ItemDelegateOverlay* overlay);
    void removeOverlay(ItemDelegateOverlay* overlay);
 
    VersionsDelegate* delegate()                                 const;
 
protected:
 
    void paintEvent(QPaintEvent* e)                                    override;
    void mouseMoveEvent(QMouseEvent* event)                            override;
    bool viewportEvent(QEvent* event)                                  override;
    QModelIndex moveCursor(CursorAction cursorAction,
                           Qt::KeyboardModifiers modifiers)            override;
 
    DECLARE_VIEW_DRAG_DROP_METHODS(QTreeView)
    QModelIndex mapIndexForDragDrop(const QModelIndex& index)    const override;
    QPixmap     pixmapForDrag(const QList<QModelIndex>& indexes) const override;
    AbstractItemDragDropHandler* dragDropHandler()               const override;
    virtual void setDragDropHandler(AbstractItemDragDropHandler* handler);
 
protected:
 
    class ToolTip;
 
    VersionsDelegate*            m_delegate;
    AbstractItemDragDropHandler* m_dragDropHandler;
    bool                         m_showToolTip;
    ToolTip*                     m_toolTip;
 
private:
 
    // Disable
    VersionsTreeView(const VersionsTreeView&)            = delete;
    VersionsTreeView& operator=(const VersionsTreeView&) = delete;
};
 
} // namespace Digikam
 
#endif // DIGIKAM_VERSIONS_TREEVIEW_H