itemrotationoverlay.h

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/* ============================================================
 *
 * This file is a part of digiKam project
 * https://www.digikam.org
 *
 * Date        : 2009-05-31
 * Description : rotate icon view item at mouse hover
 *
 * Copyright (C) 2009-2022 by Gilles Caulier <caulier dot gilles at gmail dot com>
 *
 * 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_ITEM_ROTATION_OVERLAY_H
#define DIGIKAM_ITEM_ROTATION_OVERLAY_H
 
// Qt includes
 
#include <QAbstractItemView>
 
// Local includes
 
#include "itemviewhoverbutton.h"
#include "itemdelegateoverlay.h"
 
namespace Digikam
{
 
enum ItemRotateOverlayDirection
{
    ItemRotateOverlayLeft,
    ItemRotateOverlayRight
};
 
class ItemRotateOverlayButton : public ItemViewHoverButton
{
    Q_OBJECT
 
public:
 
    ItemRotateOverlayButton(ItemRotateOverlayDirection dir, QAbstractItemView* const parentView);
    QSize sizeHint() const  override;
 
protected:
 
    QIcon icon()            override;
    void updateToolTip()    override;
 
protected:
 
    ItemRotateOverlayDirection const m_direction;
};
 
// --------------------------------------------------------------------
 
class ItemRotateOverlay : public HoverButtonDelegateOverlay
{
    Q_OBJECT
 
public:
 
    ItemRotateOverlay(ItemRotateOverlayDirection dir, QObject* const parent);
    void setActive(bool active)                     override;
 
    ItemRotateOverlayDirection direction() const { return m_direction; }
    bool isLeft() const  { return m_direction  == ItemRotateOverlayLeft; }
    bool isRight() const { return m_direction == ItemRotateOverlayRight; }
 
    static ItemRotateOverlay* left(QObject* const parent)  { return new ItemRotateOverlay(ItemRotateOverlayLeft, parent);  }
    static ItemRotateOverlay* right(QObject* const parent) { return new ItemRotateOverlay(ItemRotateOverlayRight, parent); }
 
Q_SIGNALS:
 
    void signalRotate(const QList<QModelIndex>& indexes);
 
protected:
 
    ItemViewHoverButton* createButton()             override;
    void updateButton(const QModelIndex& index)     override;
    bool checkIndex(const QModelIndex& index) const override;
    void widgetEnterEvent()                         override;
    void widgetLeaveEvent()                         override;
 
private Q_SLOTS:
 
    void slotClicked();
 
private:
 
    ItemRotateOverlayDirection const m_direction;
};
 
} // namespace Digikam
 
#endif // DIGIKAM_ITEM_ROTATION_OVERLAY_H