/***************************************************/
//        __      ______
/***************************************************/


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


namespace IPadLibrary.FormsInterfaces {


	public partial class NumericPad : Form {

		
		/*******************************************************************************************/
		/* Constructors and Initialization
		/*******************************************************************************************/
		#region Public Class Constructors


		public NumericPad(string text) {
			
			InitializeComponent();                      // This is for the designer (not edit)
			InizializeLocalData();                      // This is for local data private/public
			Display.Text = text.Trim();
		}


		public NumericPad() : 
			this("0") {
		}


		#endregion



		/*******************************************************************************************/
		/* Form Events
		/*******************************************************************************************/
		#region Form Events


		private void KEY_Button_Click(object sender, EventArgs e) {
			
			if ( Display.Text.Length >= MAX_DISPLAY_NUMBERS )
				return;
			if ( Display.Text == "0" ) 
				Display.Text = ((Button) sender).Text;
			else if ( Display.Text == "-0" ) 
				Display.Text = "-" + ((Button) sender).Text;
			else 
				Display.Text += ((Button) sender).Text;
		}


		
		private void BACKSPACE_Button_Click(object sender, EventArgs e) {
			
			int len;

			if ((len = Display.Text.Length) > 1) {
				if (Display.Text[Display.Text.Length - 1] == '.')
					dot = false;
				Display.Text = Display.Text.Remove(len - 1);
			}
			else {
				if (Display.PasswordChar != '*' )
					Display.Text = "0";
				else
					Display.Text = "";
			}
		}



		private void OK_Button_Click(object sender, EventArgs e) {

			this.DialogResult = DialogResult.OK;
			Close();
		}



		private void CANCEL_Button_Click(object sender, EventArgs e) {

			this.DialogResult = DialogResult.Cancel;
			Close();
		}



		private void CE_Button_Click(object sender, EventArgs e) {

			dot = false;
			if (Display.PasswordChar != '*')
				Display.Text = "0";
			else
				Display.Text = "";
		}



		private void SIGN_Button_Click(object sender, EventArgs e) {
			
			if ( Display.Text[0] == '-' )
				Display.Text = Display.Text.Substring(1);
			else
				Display.Text = "-" + Display.Text;
		}



		private void DOT_Button_Click(object sender, EventArgs e) {
			// uso il carattere ',' perchè nel codice è usato il metodo 'CDbl' per eseguire la 
			// cnversione da stringa a double: CDbl("3.5") -> 35, CDbl("3,5") -> 3.5 
			if ( !dot )
				Display.Text += ",";
			dot = true;
		}



		/// <summary>
		/// Used to drawing the Form borders only.
		/// </summary>
		private void NumericPad_Paint(object sender, PaintEventArgs e) {

			GeneralLibrary.DrawFormBorder(sender, e);
		}



		public void  Close(int n) {
		
			if ( n == 1 ) {
				int height = this.ClientSize.Height;
				int width = this.ClientSize.Width;
				
				while ( this.ClientSize.Height > 10 ) {
					this.Height -= 3;
					Thread.Sleep(1);
				}

				while ( this.ClientSize.Width > 10 ) {
					this.Width -= 2;
					Thread.Sleep(1);
				}
			}
			Close();
		}




        #endregion

        private void Display_MaskInputRejected(object sender, MaskInputRejectedEventArgs e)
        {

        }
    } // end class
	
} // end namespace