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using System;

using System.Drawing;

using System.Collections;

using System.ComponentModel;

using System.Windows.Forms;

namespace EA_ReqPro

{

	/// <summary>

	/// A simple alternative MessageBox class. This allows us to set TopMost=true for the

	/// message box.

	/// </summary>

	public class MessageBoxEx : System.Windows.Forms.Form

	{

      private System.Windows.Forms.Label label1;

		/// <summary>

		/// Required designer variable.

		/// </summary>

		private System.ComponentModel.Container components = null;

		public MessageBoxEx(string msg, MessageBoxButtons msgBoxButtons)

		{

			//

			// Required for Windows Form Designer support

			//

			InitializeComponent();

         // this is why we need this class - to be able to force the message box to be the

         // top most window so a user of EA is forced to deal with the message that arises

         // out of a background thread managing the ReqPro import.

         this.TopMost = true;

         // assign a minimum width for the message box based on how many buttons it needs

         int minWidth = 160;

         int maxWidth = 800;

         if (msgBoxButtons == MessageBoxButtons.YesNo)

         {

            minWidth = 280;

         }

         this.SuspendLayout();

         label1.Text = msg;

         Size sz = MeasureString(msg, maxWidth, label1.Font);

         // adjust label dimensions

         if (label1.Width > maxWidth)

            label1.Width = maxWidth;

         if (label1.Width < sz.Width)

            label1.Width = sz.Width;

         label1.Height = sz.Height + 50;

         // adjust client dimensions

         this.Width = sz.Width + 50;

         if (this.Width < minWidth)

            this.Width = minWidth;

         this.Height = sz.Height + 150;

         // adjust label position

         label1.Left = (this.Width - sz.Width)/2;

         // create buttons

         if (msgBoxButtons == MessageBoxButtons.OK)

         {

            Button button1 = new Button();

            button1.DialogResult = DialogResult.OK;

            button1.Size = new System.Drawing.Size(80, 24);

            button1.Name = "button1";

            button1.TabIndex = 0;

            button1.Text = "OK";

            button1.Visible = true;

            button1.Location = new System.Drawing.Point((this.Width - button1.Width)/2, label1.Top + sz.Height + 50);

            this.Controls.Add(button1);

         }

         else if (msgBoxButtons == MessageBoxButtons.YesNo)

         {

            Button button1 = new Button();

            button1.DialogResult = DialogResult.Yes;

            button1.Size = new System.Drawing.Size(80, 24);

            button1.Name = "button1";

            button1.TabIndex = 0;

            button1.Text = "Yes";

            button1.Location = new Point((this.Width - (button1.Width * 2))/3, label1.Top + sz.Height + 50);

            this.Controls.Add(button1);

            Button button2 = new Button();

            button2.DialogResult = DialogResult.No;

            button2.Size = new System.Drawing.Size(80, 24);

            button2.Name = "button2";

            button2.TabIndex = 1;

            button2.Text = "No";

            button2.Location = new Point(button1.Left + button1.Width + ((this.Width - (button2.Width * 2))/3), label1.Top + sz.Height + 50);

            this.Controls.Add(button2);

         }

         this.ResumeLayout(false);

		}

      public static DialogResult Show(string msg)

      {

         MessageBoxEx msgBox = new MessageBoxEx(msg, MessageBoxButtons.OK);

         msgBox.Text = "";

         return msgBox.ShowDialog();

      }

      public static DialogResult Show(string msg, MessageBoxButtons msgBoxButtons)

      {

         MessageBoxEx msgBox = new MessageBoxEx(msg, msgBoxButtons);

         msgBox.Text = "";

         return msgBox.ShowDialog();

      }

      public static DialogResult Show(string msg, string caption, MessageBoxButtons msgBoxButtons)

      {

         MessageBoxEx msgBox = new MessageBoxEx(msg, msgBoxButtons);

         msgBox.Text = caption;

         return msgBox.ShowDialog();

      }

      public static DialogResult Show(string msg, string caption)

      {

         MessageBoxEx msgBox = new MessageBoxEx(msg, MessageBoxButtons.OK);

         msgBox.Text = caption;

         return msgBox.ShowDialog();

      }

		/// <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.label1 = new System.Windows.Forms.Label();

         this.SuspendLayout();

         // 

         // label1

         // 

         this.label1.Location = new System.Drawing.Point(8, 24);

         this.label1.Name = "label1";

         this.label1.Size = new System.Drawing.Size(280, 32);

         this.label1.TabIndex = 1;

         this.label1.Text = "label1";

         // 

         // MessageBoxEx

         // 

         this.AutoScaleBaseSize = new System.Drawing.Size(6, 15);

         this.ClientSize = new System.Drawing.Size(292, 168);

         this.Controls.Add(this.label1);

         this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;

         this.MaximizeBox = false;

         this.MinimizeBox = false;

         this.Name = "MessageBoxEx";

         this.SizeGripStyle = System.Windows.Forms.SizeGripStyle.Hide;

         this.Text = "caption";

         this.TopMost = true;

         this.ResumeLayout(false);

      }

		#endregion

      /// <summary>

      /// Measures a string using the Graphics object for this form with

      /// the specified font

      /// </summary>

      /// <param name="str">The string to measure</param>

      /// <param name="maxWidth">The maximum width available to display the string</param>

      /// <param name="font">The font with which to measure the string</param>

      /// <returns></returns>

      private Size MeasureString(string str, int maxWidth, Font font)

      {

         Graphics g = this.CreateGraphics();

         SizeF strRectSizeF = g.MeasureString(str, font, maxWidth);

         g.Dispose();

         return new Size((int)Math.Ceiling(strRectSizeF.Width), (int)Math.Ceiling(strRectSizeF.Height));

      }

      /// <summary>

      /// Measures a string using the Graphics object for this form and the

      /// font of this form

      /// </summary>

      /// <param name="str"></param>

      /// <param name="maxWidth"></param>

      /// <returns></returns>

      private Size MeasureString(string str, int maxWidth)

      {

         return MeasureString(str, maxWidth, this.Font);

      }

	}

}