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//
// LogTextWriter.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.IO;
using System.Text;
using System.Collections;
namespace Mono.Addins.Setup.ProgressMonitoring
{
internal delegate void LogTextEventHandler (string writtenText);
internal class LogTextWriter: TextWriter
{
ArrayList chainedWriters;
public void ChainWriter (TextWriter writer)
{
if (chainedWriters == null) chainedWriters = new ArrayList ();
chainedWriters.Add (writer);
}
public void UnchainWriter (TextWriter writer)
{
if (chainedWriters != null) {
chainedWriters.Remove (writer);
if (chainedWriters.Count == 0)
chainedWriters = null;
}
}
public override Encoding Encoding {
get { return Encoding.Default; }
}
public override void Close ()
{
if (Closed != null)
Closed (this, null);
}
public override void Write (char value)
{
if (TextWritten != null)
TextWritten (value.ToString ());
if (chainedWriters != null)
foreach (TextWriter cw in chainedWriters)
cw.Write (value);
}
public override void Write (string value)
{
if (TextWritten != null)
TextWritten (value);
if (chainedWriters != null)
foreach (TextWriter cw in chainedWriters)
cw.Write (value);
}
public event LogTextEventHandler TextWritten;
public event EventHandler Closed;
}
}
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