#ifndef SUM_H
#define SUM_H

#include "ControlElement.h"

class SumForm;
class ConnectionLine;

class Sum : public ControlElement
{
public:
    enum Signal { SIGNAL_POSITIVE = 0, SIGNAL_NEGATIVE };
    Sum(int id);
    ~Sum();

    virtual void Draw(wxPoint2DDouble translation, double scale) const;
    virtual bool Contains(wxPoint2DDouble position) const { return m_rect.Contains(position); }
    virtual bool Intersects(wxRect2DDouble rect) const { return m_rect.Intersects(rect); }
    virtual bool ShowForm(wxWindow* parent, Element* element);
    virtual void Rotate(bool clockwise = true);
    
    virtual std::vector<Signal> GetSignalList() const { return m_signalList; }
    virtual void SetSignalList(std::vector<Signal> signalList) { m_signalList = signalList; }
    
    virtual bool Solve(double input, double timeStep);
    
    virtual void UpdatePoints();
    void AddInNode();
    void RemoveInNode();
    
    virtual Element* GetCopy();

protected:
    std::vector<Signal> m_signalList;
};

#endif // SUM_H