MaskGraphicsView.h

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//  ************************************************************************************************
//
//  BornAgain: simulate and fit reflection and scattering
//
//! @file      GUI/coregui/Views/MaskWidgets/MaskGraphicsView.h
//! @brief     Defines class MaskGraphicsView
//!
//! @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_COREGUI_VIEWS_MASKWIDGETS_MASKGRAPHICSVIEW_H
#define BORNAGAIN_GUI_COREGUI_VIEWS_MASKWIDGETS_MASKGRAPHICSVIEW_H
 
#include "GUI/coregui/Views/MaskWidgets/MaskEditorFlags.h"
#include <QGraphicsView>
 
class QWheelEvent;
class MaskGraphicsProxy;
 
//! Graphics view for MaskEditorCanvas
 
class MaskGraphicsView : public QGraphicsView {
    Q_OBJECT
public:
    MaskGraphicsView(QGraphicsScene* scene, QWidget* parent = 0);
    QSize sizeHint() const { return QSize(512, 512); }
    QSize minimumSizeHint() const { return QSize(128, 128); }
 
public slots:
    void onResetViewRequest();
 
    void updateSize(const QSize& newSize);
 
signals:
    void changeActivityRequest(MaskEditorFlags::Activity);
    void deleteSelectedRequest();
 
protected:
    void wheelEvent(QWheelEvent* event);
    void resizeEvent(QResizeEvent* event);
    void keyPressEvent(QKeyEvent* event);
    void keyReleaseEvent(QKeyEvent* event);
 
private:
    bool isControlButtonIsPressed(QWheelEvent* event);
    void cancelCurrentDrawing();
 
    void setZoomValue(double zoom_value);
    void decreazeZoomValue();
    void increazeZoomValue();
 
    double m_current_zoom_value;
};
 
#endif // BORNAGAIN_GUI_COREGUI_VIEWS_MASKWIDGETS_MASKGRAPHICSVIEW_H