line.h

/**
 * PGR 2013 project
 * Line representation in editor
 *
 * @author  xskota05 Klara Vankova
 *          xsimet00 Vojtech Simetka
 * @date    2013/11/25
 * @version 1
 * @file    line.cpp
 */
#ifndef LINE_H
#define LINE_H

#include "element.h"
#include "point.h"
#include <QGLWidget>
#include <QtOpenGL>

class Element;

class Line : public Element
{
public:
    Line(float x1, float y1, float x2, float y2);
    ~Line();
    void paintMe() const;
    void forcedPaintMe() const;
    void paintPoints() const;
    void resize(float x1, float y1, float x2, float y2);
    bool intersects(float min_x, float min_y, float max_x, float max_y) const;
    bool intersects(Point) const;
    bool intersects(float, float) const;
    bool intersects(Line *l) const;
    float distanceFromPoint(float x, float y) const;
    bool getCounterPoint(float, float, float *, float *) const;
    void  resizeToBoundingRectangle(float, float, float, float);
    float length() const;
    float getMinX() const;
    float getMinY() const;
    float getMaxX() const;
    float getMaxY() const;
    void finalizeResize();
    void translatef(float, float);
    void rotate(Point, float);

    Point getP1() const;
    void setP1(float x, float y);

    Point getP2() const;
    void setP2(float x, float y);

private:
    Point p1;
    Point p2;
    Point o_p1;
    Point o_p2;

    int orientation(Point, Point, Point) const;
    bool onSegment(Point p1, Point q, Point p2) const;

protected:
    float red;
    float green;
    float blue;
};

#endif // LINE_H