drawingWindow.h

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include <vector>
#include "line.h"


using namespace std;
namespace Ui {
class DrawingWindow;
};

class DrawingWindow : public QMainWindow
{
    Q_OBJECT

public:
    explicit DrawingWindow(QWidget *parent = 0);

    ~DrawingWindow();

    void addLine(int x0, int y0, int x1, int y1, int width, QColor color);

    void addLinePolar(int x0, int y0, int length, double angle, int width, QColor color);

    void box(int x, int y, int sideLength, QColor c) ;

    void boxes(int x, int y, int sideLength, double shrinkFactor, int smallestLength, QColor c) ;

    void snowHelper(int size, int level) ;

    void snowflake(int x, int y, int size, double angle, int level, QColor c) ;
private:
    Ui::DrawingWindow *ui;
    vector <Line *> *vL;

protected:

    void paintEvent(QPaintEvent *);
};

#endif // MAINWINDOW_H