// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
 
//
// Description: 
//
 
using System;
using System.Windows;
using System.Collections;
 
namespace System.Windows.Controls
{
    /// <summary>
    /// Specifies the changes applied to TextContainer content.
    /// </summary>
    public class TextChange
    {
        //------------------------------------------------------
        //
        //  Constructors
        //
        //------------------------------------------------------
 
        #region Constructors
 
        internal TextChange()
        {
        }
 
        #endregion Constructors
 
        //------------------------------------------------------
        //
        //  Public Members
        //
        //------------------------------------------------------
 
        #region Public Members
 
        /// <summary>
        /// 0-based character offset for this change
        /// </summary>
        public int Offset
        {
            get
            {
                return _offset;
            }
            internal set
            {
                _offset = value;
            }
        }
 
        /// <summary>
        /// Number of characters added
        /// </summary>
        public int AddedLength
        {
            get
            {
                return _addedLength;
            }
            internal set
            {
                _addedLength = value;
            }
        }
 
        /// <summary>
        /// Number of characters removed
        /// </summary>
        public int RemovedLength
        {
            get
            {
                return _removedLength;
            }
            internal set
            {
                _removedLength = value;
            }
        }
 
        #endregion Public Members
 
        //------------------------------------------------------
        //
        //  Private Fields
        //
        //------------------------------------------------------
 
        #region Private Fields
 
        private int _offset;
        private int _addedLength;
        private int _removedLength;
 
        #endregion Private Fields
    }
}