Angle.hpp

#pragma once

#include <list>
#include <opencv2/core.hpp>
#include "Widget.hpp"
#include "Point.hpp"

namespace xv{

class Image;

class Angle : public Widget
{
public:
    static Angle UNDEFINED;

#pragma region constructors
    Angle();

    Angle(gui_point_t);
#pragma endregion constructors

    virtual void setPosition(gui_point_t position);

    operator double() const{ 
        return atan2(m_vertex.y - m_pointA.y, m_vertex.x - m_pointA.x);
    };

    bool operator == (const Angle &b) {
        if (this->m_undefined && b.m_undefined)
            return true;//if both are undefined they are considered equal
        return false;
    };

    bool operator != (const Angle &b) {
        if (this->m_undefined && b.m_undefined)
            return false;//if both are undefined they are considered equal
        return true;
    };
private:
    void paint(const cv::Mat&);
    void onMouseMove(const gui_point_t&);
    void onMouseDown(const gui_point_t&);
    void onMouseUp(const gui_point_t&);
    void setMouseOver(bool mouseOver);
    void defineContours();

    Point m_vertex, m_pointA, m_pointB;
    int m_radius = 0;
};

}