Class TamGiac

#pragma once
class Point
{
private:
    float x, y;
public:
    Point();
    Point(int X, int Y);
    ~Point();
    void set(float X, float Y);
    float getX();
    float getY();
    void move(float dx, float dy);
    float distance(Point p);
};
class TamGiac
{
private:
    Point A, B, C, G;
    float chuvi();
    double dientich();
public:
    TamGiac();
    TamGiac(Point a, Point b, Point c);
    TamGiac(int x1, int y1, int x2, int y2, int x3, int y3);
    ~TamGiac();
    void set(Point a, Point b, Point c);
    void set(int x1, int y1, int x2, int y2, int x3, int y3);
    void show_Points();
    void Draw(int ColorNumber);
    void Draw(int R, int G, int B);
    void move(int dx, int dy);
    void rotate(Point mark, int rad);
    void show_calcresult();
    void zoom_in(char key,float hesoPhongdai);
    void zoom_out(char key, float hesoThunho);
};