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//---------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// Description: Contains base class for DrawingContext iterators
//
// History:
//
// 2004/04/02 : Microsoft - Created it.
// 2005/06/20 : timothyc - Moved to codegen
//
//---------------------------------------------------------------------------
using System;
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.Security.Permissions;
using System.Windows.Threading;
using System.Windows;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Media.Imaging;
using System.Windows.Media.Media3D;
using MS.Internal;
namespace System.Windows.Media
{
/// <summary>
/// DrawingContextWalker : The base class for DrawingContext iterators.
/// This is *not* thread safe
/// </summary>
internal abstract partial class DrawingContextWalker : DrawingContext
{
/// <summary>
/// Constructor for DrawingContextWalker
/// </summary>
protected DrawingContextWalker()
{
// Nothing to do here
}
/// <summary>
/// DrawingContextWalker implementations are never opened, so they shouldn't be closed.
/// </summary>
public override sealed void Close()
{
Debug.Assert(false);
}
#region Protected methods
/// <summary>
/// DrawingContextWalker implementations are never opened, so they shouldn't be disposed.
/// </summary>
protected override void DisposeCore()
{
Debug.Assert(false);
}
/// <summary>
/// StopWalking - If this called, the current walk will stop.
/// </summary>
protected void StopWalking()
{
_stopWalking = true;
}
#endregion Protected methods
#region Internal properties
/// <summary>
/// ShouldStopWalking Property - internal clients can consult this property to determine
/// whether or not the implementer of this DrawingContextWalker has called StopWalking.
/// This can also be set by internal callers.
/// </summary>
internal bool ShouldStopWalking
{
get
{
return _stopWalking;
}
set
{
_stopWalking = value;
}
}
#endregion Internal properties
#region Private Members
private bool _stopWalking;
#endregion Private Members
}
}
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