using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;

namespace April25_2
{
	/// <summary>
	/// Summary description for Form1.
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		private int shapeType = 0; //0: rect, 1: ellipse, -1: clear
		private int color = 0; //0: red, 1: green, 2: blue

		private System.Windows.Forms.Button button1;
		private System.Windows.Forms.Button button2;
		private System.Windows.Forms.Button button3;
		private System.Windows.Forms.Button buttonRed;
		private System.Windows.Forms.Button buttonGreen;
		private System.Windows.Forms.Button buttonBlue;
		/// <summary>
		/// Required designer variable.
		/// </summary>
		private System.ComponentModel.Container components = null;

		public Form1()
		{
			//
			// Required for Windows Form Designer support
			//
			InitializeComponent();

			//
			// TODO: Add any constructor code after InitializeComponent call
			//
		}

		/// <summary>
		/// Clean up any resources being used.
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if (components != null) 
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows Form Designer generated code
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
			this.button1 = new System.Windows.Forms.Button();
			this.button2 = new System.Windows.Forms.Button();
			this.button3 = new System.Windows.Forms.Button();
			this.buttonRed = new System.Windows.Forms.Button();
			this.buttonGreen = new System.Windows.Forms.Button();
			this.buttonBlue = new System.Windows.Forms.Button();
			this.SuspendLayout();
			// 
			// button1
			// 
			this.button1.Location = new System.Drawing.Point(16, 160);
			this.button1.Name = "button1";
			this.button1.Size = new System.Drawing.Size(64, 32);
			this.button1.TabIndex = 0;
			this.button1.Text = "Rectangle";
			this.button1.Click += new System.EventHandler(this.button1_Click);
			// 
			// button2
			// 
			this.button2.Location = new System.Drawing.Point(104, 160);
			this.button2.Name = "button2";
			this.button2.Size = new System.Drawing.Size(64, 32);
			this.button2.TabIndex = 1;
			this.button2.Text = "Ellipse";
			this.button2.Click += new System.EventHandler(this.button2_Click);
			// 
			// button3
			// 
			this.button3.Location = new System.Drawing.Point(192, 160);
			this.button3.Name = "button3";
			this.button3.Size = new System.Drawing.Size(64, 32);
			this.button3.TabIndex = 2;
			this.button3.Text = "Clear";
			this.button3.Click += new System.EventHandler(this.button3_Click);
			// 
			// buttonRed
			// 
			this.buttonRed.BackColor = System.Drawing.Color.Tomato;
			this.buttonRed.Location = new System.Drawing.Point(16, 216);
			this.buttonRed.Name = "buttonRed";
			this.buttonRed.Size = new System.Drawing.Size(56, 24);
			this.buttonRed.TabIndex = 3;
			this.buttonRed.Text = "Red";
			this.buttonRed.Click += new System.EventHandler(this.buttonRed_Click);
			// 
			// buttonGreen
			// 
			this.buttonGreen.BackColor = System.Drawing.Color.LightGreen;
			this.buttonGreen.Location = new System.Drawing.Point(112, 216);
			this.buttonGreen.Name = "buttonGreen";
			this.buttonGreen.Size = new System.Drawing.Size(56, 24);
			this.buttonGreen.TabIndex = 4;
			this.buttonGreen.Text = "Green";
			this.buttonGreen.Click += new System.EventHandler(this.buttonGreen_Click);
			// 
			// buttonBlue
			// 
			this.buttonBlue.BackColor = System.Drawing.Color.LightBlue;
			this.buttonBlue.Location = new System.Drawing.Point(200, 216);
			this.buttonBlue.Name = "buttonBlue";
			this.buttonBlue.Size = new System.Drawing.Size(56, 24);
			this.buttonBlue.TabIndex = 5;
			this.buttonBlue.Text = "Blue";
			this.buttonBlue.Click += new System.EventHandler(this.buttonBlue_Click);
			// 
			// Form1
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
			this.BackColor = System.Drawing.SystemColors.Control;
			this.ClientSize = new System.Drawing.Size(280, 260);
			this.Controls.Add(this.buttonBlue);
			this.Controls.Add(this.buttonGreen);
			this.Controls.Add(this.buttonRed);
			this.Controls.Add(this.button3);
			this.Controls.Add(this.button2);
			this.Controls.Add(this.button1);
			this.Name = "Form1";
			this.Text = "Form1";
			this.Paint += new System.Windows.Forms.PaintEventHandler(this.Form1_Paint);
			this.ResumeLayout(false);

		}
		#endregion

		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new Form1());
		}

		private void button1_Click(object sender, System.EventArgs e)
		{
			shapeType = 0;
			this.Invalidate();
		}

		private void button2_Click(object sender, System.EventArgs e)
		{
			shapeType = 1;
			this.Invalidate();
		}

		private void button3_Click(object sender, System.EventArgs e)
		{
			shapeType = -1;
			this.Invalidate();
		}

		private void Form1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
		{
			Graphics g = e.Graphics;
		    Brush b;
			if(color==0)
				b = Brushes.Tomato;
			else if(color == 1)
				b = Brushes.LightGreen;
			else
				b = b = Brushes.LightBlue;

			if(shapeType==0)
			{
				g.FillRectangle(b,80,50,100,60);
			}
			else if (shapeType==1)
			{
				g.FillEllipse(b,80,50,100,60);
			}
			else
			{
				g.Clear(System.Drawing.SystemColors.Control);
			}
		}

		private void buttonRed_Click(object sender, System.EventArgs e)
		{
			color = 0;
			this.Invalidate();
		}

		private void buttonGreen_Click(object sender, System.EventArgs e)
		{
			color = 1;			
			this.Invalidate();
		}

		private void buttonBlue_Click(object sender, System.EventArgs e)
		{
			color = 2;
			this.Invalidate();
		}

	}
}