//
// System.ComponentModel.Design.Serialization.Trace
//
// Authors:	 
//	  Ivan N. Zlatev (contact@i-nZ.net)
//
// (C) 2007 Ivan N. Zlatev

//
// 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.
//

#if NET_2_0

using System;
using System.Text;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel.Design.Serialization;

namespace Mono.Design
{
	internal class DebugContext
	{
		private Trace _trace = null;
		private string _error = null;

		public DebugContext ()
		{
		}

		public Trace Trace {
			get {
				if (_error != null && _trace == null)
					_trace = new Trace ();
				return _trace; 
			}
		}

		public string Error {
			get { return _error; }
		}

		public bool ErrorOccurred {
			get { return (_error != null); }
		}

		public void Reset ()
		{
			_error = null;
			_trace.Clear ();
		}
	}

	internal class Trace
	{
		private string _error;
		private Stack<string> _trace;

		public Trace ()
		{
			_trace = new Stack <string>();
		}

		public void Push (string text)
		{
			_trace.Push (text);
		}
 
		public string Text {
			get { return this.ToString (); }
		}

		public override string ToString ()
		{
			StringBuilder sb = new StringBuilder ();
			while (_trace.Count > 0)
				sb.AppendLine (_trace.Pop ());
			return sb.ToString ();
		}

		public void Clear ()
		{
			_trace.Clear ();
		}
	}
}
#endif