IShape2DView.h

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//  ************************************************************************************************
//
//  BornAgain: simulate and fit reflection and scattering
//
//! @file      GUI/View/Mask/IShape2DView.h
//! @brief     Defines interface IShape2DView.
//!
//! @homepage  http://www.bornagainproject.org
//! @license   GNU General Public License v3 or higher (see COPYING)
//! @copyright Forschungszentrum Jülich GmbH 2018
//! @authors   Scientific Computing Group at MLZ (see CITATION, AUTHORS)
//
//  ************************************************************************************************
 
#ifndef BORNAGAIN_GUI_VIEW_MASK_ISHAPE2DVIEW_H
#define BORNAGAIN_GUI_VIEW_MASK_ISHAPE2DVIEW_H
 
#include "GUI/View/Mask/MaskEditorHelper.h"
#include <QGraphicsObject>
 
class SessionItem;
class ISceneAdaptor;
class QPainter;
 
//! Main interface class for views representing MaskItems, Projections on graphics scene.
 
class IShape2DView : public QGraphicsObject {
    Q_OBJECT
 
public:
    int type() const override { return MaskEditorHelper::IMASKVIEW; }
 
    QRectF boundingRect() const override;
 
    virtual SessionItem* parameterizedItem() const = 0;
 
    void setSceneAdaptor(const ISceneAdaptor* adaptor);
 
    virtual void addView(IShape2DView* childView, int row = 0);
 
protected slots:
    //! update visual appearance of view (triggered by ISceneAdaptor)
    virtual void update_view() = 0;
    virtual void onChangedX() {}
    virtual void onChangedY() {}
    virtual void onPropertyChange() {}
 
protected:
    explicit IShape2DView(SessionItem* item);
 
    void paint(QPainter* painter, const QStyleOptionGraphicsItem*, QWidget*) override;
 
    //! Returns the shape with all masking already applied.
    QPainterPath maskedShape() const;
 
    qreal toSceneX(qreal value) const;
    qreal toSceneY(qreal value) const;
 
    //! convert scene coordinates to ColorMap plot coordinates
    qreal fromSceneX(qreal value) const;
    qreal fromSceneY(qreal value) const;
    void setBlockOnProperty(bool value);
    bool blockOnProperty() const;
 
    void disconnectFromItem(SessionItem* item);
 
    const ISceneAdaptor* m_adaptor;
    QRectF m_bounding_rect;
    bool m_block_on_property_change;
 
private:
    void onItemPropertyChange(const QString& propertyName);
    virtual void onItemDestroyed() = 0;
};
 
#endif // BORNAGAIN_GUI_VIEW_MASK_ISHAPE2DVIEW_H