using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using DrawingClassLib;


namespace DrawingApp
{
    public partial class Form1 : Form
    {
        protected bool Draw;
        public Form1()
        {
            Draw = false;
            InitializeComponent();
        }

        private void PictureBox_Paint(object sender, PaintEventArgs e)
        {
            if (Draw)
            {
                Graphics graph = PictureBox.CreateGraphics();
                Shape[] shape = new Shape[20];
                for (int i = 0; i < 4; i++)
                {
                    shape[i] = new DrawingClassLib.Point();
                    System.Threading.Thread.Sleep(20);
                }

                for (int i = 4; i < 8; i++)
                {
                    shape[i] = new Circle();
                    System.Threading.Thread.Sleep(20);
                }

                for (int i = 8; i < 12; i++)
                {
                    shape[i] = new Ellipse();
                    System.Threading.Thread.Sleep(10);
                }

                for (int i = 12; i < 16; i++)
                {
                    shape[i] = new Segment();
                    System.Threading.Thread.Sleep(10);
                }

                for (int i = 16; i < shape.Length; i++)
                {
                    shape[i] = new DrawingClassLib.Rectangle();
                    System.Threading.Thread.Sleep(10);
                }

                for (int i = 0; i < shape.Length; i++)
                {
                    shape[i].Draw(graph);
                }
            }
        }

        private void drawShape_Click(object sender, EventArgs e)
        {
            Draw = true;
            Refresh();

        }

        private void clearButton_Click(object sender, EventArgs e)
        {
            Refresh();
        }
    }
}