using System;
using System.Drawing;
using System.Windows.Forms;

using Indyjug;

namespace Indyjug {
  /// <summary>
  /// Summary description for ShapeGUI.
  /// </summary>
  public class ShapeGUI : Form {
    private Label radiusLbl;
    private TextBox radiusTxt;
    private Label perimeterLbl;
    private Label perimeterValueLbl;
    private Label areaLbl;
    private Label areaValueLbl;
    private Button computePerimeterAreaBtn;

    /// <summary>
    /// Required designer variable.
    /// </summary>
    private System.ComponentModel.Container components = null;

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

    /// <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.radiusLbl = new Label();
      this.radiusTxt = new TextBox();
      this.perimeterLbl = new Label();
      this.perimeterValueLbl = new Label();
      this.areaLbl = new Label();
      this.areaValueLbl = new Label();
      this.computePerimeterAreaBtn = new Button();
      this.SuspendLayout();

      // 
      // radiusLbl
      // 
      this.radiusLbl.Location = new Point(25, 25);
      this.radiusLbl.Name = "radiusLbl";
      this.radiusLbl.Size = new Size(56, 23);
      this.radiusLbl.TabIndex = 1;
      this.radiusLbl.Text = "Radius:";
      this.radiusLbl.TextAlign = ContentAlignment.MiddleLeft;

      // 
      // radiusTxt
      // 
      this.radiusTxt.Location = new Point(100, 25);
      this.radiusTxt.Name = "radiusTxt";
      this.radiusTxt.Size = new Size(150, 23);
      this.radiusTxt.TabIndex = 2;
      this.radiusTxt.Text = "";
      this.radiusTxt.TextAlign = HorizontalAlignment.Left;

      // 
      // perimeterLbl
      // 
      this.perimeterLbl.Location = new Point(25, 50);
      this.perimeterLbl.Name = "perimeterLbl";
      this.perimeterLbl.Size = new Size(56, 23);
      this.perimeterLbl.TabIndex = 3;
      this.perimeterLbl.Text = "Perimeter:";
      this.perimeterLbl.TextAlign = ContentAlignment.MiddleLeft;

      // 
      // perimeterValueLbl
      // 
      this.perimeterValueLbl.Location = new Point(100, 50);
      this.perimeterValueLbl.Name = "perimeterValueLbl";
      this.perimeterValueLbl.Size = new Size(150, 23);
      this.perimeterValueLbl.TabIndex = 4;
      this.perimeterValueLbl.Text = "";
      this.perimeterValueLbl.TextAlign = ContentAlignment.MiddleLeft;

      // 
      // areaLbl
      // 
      this.areaLbl.Location = new Point(25, 75);
      this.areaLbl.Name = "areaLbl";
      this.areaLbl.Size = new Size(56, 23);
      this.areaLbl.TabIndex = 5;
      this.areaLbl.Text = "Area:";
      this.areaLbl.TextAlign = ContentAlignment.MiddleLeft;

      // 
      // areaValueLbl
      // 
      this.areaValueLbl.Location = new Point(100, 75);
      this.areaValueLbl.Name = "areaValueLbl";
      this.areaValueLbl.Size = new Size(150, 23);
      this.areaValueLbl.TabIndex = 6;
      this.areaValueLbl.Text = "";
      this.areaValueLbl.TextAlign = ContentAlignment.MiddleLeft;

      // 
      // computePerimeterAreaBtn
      // 
      this.computePerimeterAreaBtn.Location = new Point(75, 100);
      this.computePerimeterAreaBtn.Name = "computePerimeterAreaBtn";
      this.computePerimeterAreaBtn.Size = new Size(150, 23);
      this.computePerimeterAreaBtn.TabIndex = 7;
      this.computePerimeterAreaBtn.Text = "Compute Perimeter && Area";
      this.computePerimeterAreaBtn.TextAlign = ContentAlignment.MiddleRight;
      this.computePerimeterAreaBtn.Click += new EventHandler(this.computePerimeterAreaBtn_Click);

      // 
      // ShapeGUI
      // 
      this.AutoScaleBaseSize = new Size(5, 13);
      this.ClientSize = new Size(275, 150);
      this.Controls.AddRange(new Control[] {
                                 this.radiusLbl,
                                 this.radiusTxt,
                                 this.perimeterLbl,
                                 this.perimeterValueLbl,
                                 this.areaLbl,
                                 this.areaValueLbl,
                                 this.computePerimeterAreaBtn});

      this.Name = "ShapeGUI";
      this.Text = "ShapeGUI";
      this.ResumeLayout(false);
    }
    #endregion

    /// <summary>
    /// The main entry point for the application.
    /// </summary>

    // The STAThread attribute informs the common language runtime that
    // Windows Forms uses the single-threaded apartment model.
    [STAThread]
    static void Main() {
      Application.Run(new ShapeGUI());
    }

    private void computePerimeterAreaBtn_Click(object sender, EventArgs e) {
      try {
        double radius = Double.Parse(radiusTxt.Text);
        Circle circle = new Circle(radius);
        perimeterValueLbl.Text = Convert.ToString(circle.ComputePerimeter());
        areaValueLbl.Text = Convert.ToString(circle.ComputeArea());
      }
      catch (FormatException ex) {        
        MessageBox.Show("Please enter a numeric value", "Error",
                        MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
        radiusTxt.Text = "";
        perimeterValueLbl.Text = "";
        areaValueLbl.Text = "";
        radiusTxt.Focus();
      }
    }
  }
}