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#include <iostream>
#include <vector>
using namespace std;
class Shape
{
public:
virtual void Draw() = 0;
virtual ~Shape() {};
};
class Point
{
public:
Point() { this->_x = 0; this->_y = 0; }
Point(int x, int y) :_x(x), _y(y) {}
friend ostream& operator<< (ostream& out, Point const& point)
{
return out << "(" << point._x << ", " << point._y << ")";
}
private:
int _x;
int _y;
};
class Polygon : public Shape
{
public:
virtual void Draw() override {};
~Polygon() {}
};
class Line : public Polygon
{
public:
Line():msize(v->size()) {
v->push_back(Point(0, 0));
v->push_back(Point(0, 0));
std::cout << "Line construction" << std::endl; }
Line(Point pt1, Point pt2): msize (v->size())
{
v->push_back(pt1);
v->push_back(pt2);
std::cout << "Line construction" << std::endl;
}
Line(const Line& other)
: v(other.v),msize(other.msize)
{
}
virtual void Draw() override
{
std::cout << "Line drawing" << std::endl;
}
int size() const
{
return v->size();
}
friend ostream& operator<< (ostream& stream, const Line line)
{
stream << "Line";
for (int i{ 0 };i<line.msize ;i++)
{
stream << (*line.v)[i]<<" ";
}
stream << endl;
return stream;
}
Line& operator = (const Line& other)
{
if (this != &other)
{
int size = other.msize;
for (int i = 0; i < other.msize; i++)
{
this->v[i] =other.v[i];
}
}
return *this;
}
~Line()
{
delete[]v;
}
private:
std::vector<Point>* v = new std::vector<Point>[2];
int msize;
};
int main()
{
Line l1; //Output: Line construction
std::cout << l1; //Output: Line (0,0) (0,0)
l1.Draw(); //Output: Line drawing
Line l2(Point(),
Point(100, 100)); //Output: Line construction
std::cout << l2; //Output: Line (0,0) (100,100)
l1 = l2;
std::cout << l1; //Output: Line (0,0) (100,100)
return 0;
}
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