dimgchilditem.h

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/* ============================================================
 *
 * This file is a part of digiKam project
 * https://www.digikam.org
 *
 * Date        : 2010-05-15
 * Description : Graphics View item for a child item on a DImg item
 *
 * Copyright (C) 2010-2011 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_DIMG_CHILD_ITEM_H
#define DIGIKAM_DIMG_CHILD_ITEM_H
 
// Qt includes
 
#include <QGraphicsObject>
 
// Local includes
 
#include "digikam_export.h"
 
namespace Digikam
{
 
class GraphicsDImgItem;
 
class DIGIKAM_EXPORT DImgChildItem : public QGraphicsObject     // clazy:exclude=ctor-missing-parent-argument
{
    Q_OBJECT
 
public:
 
    explicit DImgChildItem(QGraphicsItem* const parent = nullptr);
    ~DImgChildItem()                              override;
 
    void setRelativePos(const QPointF& relativePosition);
    void setRelativePos(qreal x, qreal y)
    {
        setRelativePos(QPointF(x, y));
    }
 
    void setRelativeSize(const QSizeF& relativeSize);
    void setRelativeSize(qreal width, qreal height)
    {
        setRelativeSize(QSizeF(width, height));
    }
 
    void setRelativeRect(const QRectF& rect);
    void setRelativeRect(qreal x, qreal y, qreal width, qreal height)
    {
        setRelativeRect(QRectF(x, y, width, height));
    }
 
    QRectF  relativeRect()                  const;
    QPointF relativePos()                   const;
    QSizeF  relativeSize()                  const;
 
    void setOriginalPos(const QPointF& posInOriginal);
    void setOriginalPos(qreal x, qreal y)
    {
        setOriginalPos(QPointF(x, y));
    }
 
    void setOriginalSize(const QSizeF& sizeInOriginal);
    void setOriginalSize(qreal width, qreal height)
    {
        setOriginalSize(QSizeF(width, height));
    }
 
    void setOriginalRect(const QRectF& rect);
    void setOriginalRect(qreal x, qreal y, qreal width, qreal height)
    {
        setOriginalRect(QRectF(x, y,width, height));
    }
 
    QRect  originalRect()                   const;
    QPoint originalPos()                    const;
    QSize  originalSize()                   const;
 
    void setPos(const QPointF& zoomedPos);
    void setPos(qreal x, qreal y)
    {
        setPos(QPointF(x, y));
    }
 
    void setSize(const QSizeF& zoomedSize);
    void setSize(qreal width, qreal height)
    {
        setSize(QSizeF(width, height));
    }
 
    void setRect(const QRectF& rect);
    void setRect(qreal x, qreal y, qreal width, qreal height)
    {
        setPos(QPointF(x,y));
        setSize(QSizeF(width, height));
    }
 
    void setRectInSceneCoordinates(const QRectF& rect);
 
    QRectF rect()                           const;
    QSizeF size()                           const;
 
    // Override
    void moveBy(qreal dx, qreal dy)
    {
        setPos(pos().x() + dx, pos().y() + dy);
    }
 
    GraphicsDImgItem* parentDImgItem()      const;
 
    QRectF boundingRect()                   const override;
 
protected Q_SLOTS:
 
    void imageSizeChanged(const QSizeF&);
 
Q_SIGNALS:
 
    void positionOnImageChanged();
    void sizeOnImageChanged();
    void geometryOnImageChanged();
 
    void positionChanged();
    void sizeChanged();
    void geometryChanged();
 
protected:
 
    QVariant itemChange(GraphicsItemChange change,
                        const QVariant& value)    override;
 
private:
 
    void updatePos();
    void updateSize();
 
private:
 
    class Private;
    Private* const d;
};
 
} // namespace Digikam
 
#endif // DIGIKAM_DIMG_CHILD_ITEM_H