//
// CharPropertyEditor.cs
//
// Author:
//   Lluis Sanchez Gual
//
// Copyright (C) 2007 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//

using System;
using System.ComponentModel;

namespace MonoDevelop.Components.PropertyGrid.PropertyEditors
{

	[PropertyEditorType (typeof (char))]
	public class CharPropertyEditor : Gtk.Entry, IPropertyEditor 
	{
		public CharPropertyEditor ()
		{
			MaxLength = 1;
			HasFrame = false;
		}

		public void Initialize (EditSession session)
		{
			if (session.Property.PropertyType != typeof(char))
				throw new ApplicationException ("Char editor does not support editing values of type " + session.Property.PropertyType);
		}
		
		char last;

		public object Value {
			get {
				if (Text.Length == 0)
					return last;
				else
					return Text[0];
			}
			set {
				Text = value.ToString ();
				last = (char) value;
			}
		}

		protected override void OnChanged ()
		{
			if (ValueChanged != null)
				ValueChanged (this, EventArgs.Empty);
		}

		public event EventHandler ValueChanged;
	}
}