/***************************************************/
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using System.Windows.Forms;


namespace IPadLibrary.FormsInterfaces {
	

	/// <summary>
	/// Keyboard component, instantiate the Keyboard Form.
	/// </summary>
	partial class KeyboradControl {
	
		/*******************************************************************************************/
		/* Constant & Static Variables
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		#region Constant & Static Variables
		
		private const int    MAX_DISPLAY_CHAR    = 250;            // Maximun number of char to text
		private const char   SHIFT_CHAR          = '\u00ad';       // The simbol ^
		private const char   BACKSPACE_CHAR      = '\u00ac';       // The simbol <--
		private const string SIMBOL_CHARS        = "~'().,_\\-*";  // Symbol key sequence
		private const string NUMBER_CHARS        = "0123456789";   // Number key sequence

		#endregion


		/*******************************************************************************************/
		/* Public Variables Definition
		/*******************************************************************************************/
		#region Public Variables Definiton
		// ...
		#endregion


		/*******************************************************************************************/
		/* Private Variables Definition
		/*******************************************************************************************/
		#region Private Variables Definition

		private Control     owner;                    ///<  The owner of Form Dialog
		private Button[]    buttonGroupNumbers;       ///<  Used to manage all group of Nubers buttons
		private Button[]    buttonGroupKeys;          ///<  Used to manage all group of Keys buttons
		private bool        shift_pressed;            ///<  Monitor the Shift-Key pression
		private bool        simbol_pressed;           ///<  Monitor the Simbol-Key pression

		#endregion


		/*******************************************************************************************/
		/* Public Methods Definition
		/*******************************************************************************************/
		#region Public Methods Definition

		//------------------------------------ DIALOG SECTION -------------------------------------//

		/// <summary>
		/// Show this dialog, in modal mode.
		/// </summary>
		/// <param name="owner">Any object that implement <c>IWin32Window</c> that is the fisrt level window owner of the modal dialog.</param>
		/// <returns>One value of <c>DialogResult</c>.</returns>
		public DialogResult ShowDialog(Control owner) {
			this.owner = owner;
			return  base.ShowDialog(owner);
		}
		
		//------------------------------------ GETS SECTION ---------------------------------------//

		/// <summary>
		/// Get/Set the text typed.
		/// </summary>
		public override string  Text {
			get { 
				if ( Display != null )
					return Display.Text;
				else
					return "";
			 }
			set { 
				if ( Display != null ) {
					Display.Text = value.Trim();
				}
			}
		}



		#endregion


		/*******************************************************************************************/
		/* Private Methods Definition
		/*******************************************************************************************/
		#region Private Methods Definition

		//------------------------------------- INIT SECTION --------------------------------------//

		/// <summary>
		/// Initialize all component of this Form.
		/// </summary>
		private void  InizializeLocalData() {

			shift_pressed = false;
			simbol_pressed = false;
			SHIFT_Button.Text = SHIFT_CHAR.ToString();            // Set to correct ASCII char.
			BACKSPACE_Button.Text = BACKSPACE_CHAR.ToString();    // Set to correct ASCII char.
			
			buttonGroupNumbers = new Button[] {
				NUM0_Button, NUM1_Button, NUM2_Button, NUM3_Button, NUM5_Button, 
				NUM4_Button, NUM6_Button, NUM7_Button, NUM8_Button, NUM9_Button
			};
			setEventClick(buttonGroupNumbers);
			
			buttonGroupKeys = new Button[] {
				KEY1_Button, KEY2_Button, KEY3_Button, KEY4_Button, KEY5_Button,
				KEY6_Button, KEY7_Button, KEY8_Button, KEY9_Button, KEY10_Button,
				KEY11_Button, KEY12_Button, KEY13_Button, KEY14_Button, KEY15_Button,
				KEY16_Button, KEY17_Button, KEY18_Button, KEY19_Button, KEY20_Button,
				KEY21_Button, KEY22_Button, KEY23_Button, KEY24_Button, KEY25_Button,
				KEY26_Button
			};
			setEventClick(buttonGroupKeys);
			setEventClick(SPACE_Button);
			this.Select();                   // Default selceted button
		}



		/// <summary>
		/// Add <c>Key_Button_Click</c> Event to button.
		/// </summary>
		/// <param name="b">The <c>Button</c> the implement a click event.</param>
		private void  setEventClick(Button b) {
		
			b.Click += new System.EventHandler(KEY_Button_Click);
		}



		/// <summary>
		/// Add <c>Key_Button_Click</c> Event to buttons group.
		/// </summary>
		/// <param name="group"></param>
		private void  setEventClick(Button[] group) {
		
			foreach ( Button b in group ) 
				b.Click += new System.EventHandler(KEY_Button_Click);
		}



		/// <summary>
		/// Change all keys char in UpperCase.
		/// </summary>
		private void  toUpperChase() {
		
			foreach ( Button b in buttonGroupKeys ) 
				b.Text = b.Text.ToUpper();
		}



		/// <summary>
		/// Change all keys char in LowerCase.
		/// </summary>
		private void  toLowerChase() {
		
			foreach ( Button b in buttonGroupKeys ) 
				b.Text = b.Text.ToLower();
		}



		/// <summary>
		/// Switch all Key numbers in symbol mode.
		/// </summary>
		private void switchToSymbol() {
			int idx = 0;
			foreach ( Button b in buttonGroupNumbers )
				b.Text = SIMBOL_CHARS[idx++].ToString();
		}

		

		/// <summary>
		/// Switch all Key numbers in symbol mode.
		/// </summary>
		private void switchToNumber() {
			int idx = 0;
			foreach ( Button b in buttonGroupNumbers )
				b.Text = NUMBER_CHARS[idx++].ToString();
		}


		
		#endregion


	} // end class

} // end namespace