Canvass.h

#pragma once
#include <vector>
#include <iostream>
#include "Pen.h"
#include "Instruction.h"

enum ACTION { UP, DOWN, LEFT, RIGHT, PEN_TOGGLE, STOP, PEN_POSITION, NONE };
const unsigned int INIT_DIM = 4, MAX_HORI = 50, MAX_VERTI = 18;

class Canvas
{
private:
    Pen _pen;
    std::vector<std::vector<bool>> _canvas;
    std::vector<Instruction*> _instructions;
    Instruction* _currInstruction = NULL;
    bool growHoriztontal();
    bool growVertical();
    bool processDrawAction(PEN_AXIS, int);
    void stop();
    void mark();

public:
    Canvas();
    void draw(std::ostream&, bool = true);
    unsigned int getWidth();
    unsigned int getHeight();
    unsigned int getPenX();
    unsigned int getPenY();
    bool movePen(PEN_AXIS, bool);
    void togglePen();
    void toggleShowPen();
    bool isPenDown();
    bool doCommand(ACTION);
    std::vector<Instruction*> getInstructions();
};