using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Collections;

namespace WindowsFormsApp30
{
    abstract class Figure
    {
        public Point point1;
        public bool vis = false;

        public Figure(Point point1)
        {
            this.point1 = point1;
        }

        public abstract void Draw(Graphics g, Point point);
        public abstract void DrawDash(Graphics g, Point point2);
        public abstract void Hide(Graphics g);
        public abstract void Show(Graphics g);
        public abstract Point getPoint1();
        public abstract Point getPoint2();
    }
    class Rectangle : Figure
    {
        int Xmin, Ymin;
        int Xmax, Ymax;
        Pen pen = new Pen(Color.Black, 2);
        Point point2;
        public Rectangle(Point point1, Point point2) : base(point1)
        {

        }

        public override void Draw(Graphics g)
        {

            if (point1.X >= point2.X)
            { Xmax = point1.X - point2.X; Xmin = point2.X; }
            else
            { Xmax = point2.X - point1.X; Xmin = point1.X; }
            if (point1.Y >= point2.Y)
            { Ymax = point1.Y - point2.Y; Ymin = point2.Y; }
            else
            { Ymax = point2.Y - point1.Y; Ymin = point1.Y; }
            g.DrawRectangle(pen, Xmin, Ymin, Xmax, Ymax);
        }
        public override void DrawDash(Graphics g, Point point2)
        {
            g.Clear(Color.White);
            this.point2.X = point2.X;
            this.point2.Y = point2.Y;
            pen.DashStyle = System.Drawing.Drawing2D.DashStyle.Dash;
            Draw(g, this.point2);
            pen = new Pen(Color.Black, 1);
        }
        public override void Hide(Graphics g)
        {

        }
        public override void Show(Graphics g)
        {

        }
        public override Point getPoint1(){ return point1; }
        public override Point getPoint2(){ return point2; }
    }
}