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//---------------------------------------------------------------------------
//
// File: DeferredRunTextReference.cs
//
// Copyright (C) Microsoft Corporation. All rights reserved.
//
// Description: Proxy object passed to the property system to delay load
// TextProperty values.
//
//---------------------------------------------------------------------------
namespace System.Windows.Controls
{
using System.Windows.Documents;
// Proxy object passed to the property system to delay load TextProperty
// values.
internal class DeferredRunTextReference : DeferredReference
{
//------------------------------------------------------
//
// Constructors
//
//------------------------------------------------------
#region Constructors
internal DeferredRunTextReference(Run run)
{
_run = run;
}
#endregion Constructors
//------------------------------------------------------
//
// Internal Methods
//
//------------------------------------------------------
#region Internal Methods
// Does the real work to calculate the current TextProperty value.
internal override object GetValue(BaseValueSourceInternal valueSource)
{
return TextRangeBase.GetTextInternal(_run.ContentStart, _run.ContentEnd);
}
// Gets the type of the value it represents
internal override Type GetValueType()
{
return typeof(string);
}
#endregion Internal Methods
//------------------------------------------------------
//
// Private Fields
//
//------------------------------------------------------
#region Private Fields
// Run mapped to this object.
private readonly Run _run;
#endregion Private Fields
}
}
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