BN089-BS开发框架MVC4版/source20131023/Zephyr.Net/Zephyr.Utils/Document/Excel/EPPlus/Drawing/Vml/ExcelVmlDrawingCommentCollection.cs

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/*******************************************************************************
 * You may amend and distribute as you like, but don't remove this header!
 *
 * EPPlus provides server-side generation of Excel 2007/2010 spreadsheets.
 * See http://www.codeplex.com/EPPlus for details.
 *
 * Copyright (C) 2011  Jan Källman
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.

 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  
 * See the GNU Lesser General Public License for more details.
 *
 * The GNU Lesser General Public License can be viewed at http://www.opensource.org/licenses/lgpl-license.php
 * If you unfamiliar with this license or have questions about it, here is an http://www.gnu.org/licenses/gpl-faq.html
 *
 * All code and executables are provided "as is" with no warranty either express or implied. 
 * The author accepts no liability for any damage or loss of business that this product may cause.
 *
 * Code change notes:
 * 
 * Author							Change						Date
 * ******************************************************************************
 * Jan Källman		Initial Release		        2010-06-01
 * Jan Källman		License changed GPL-->LGPL 2011-12-16
 *******************************************************************************/
using System;
using System.Collections.Generic;
using System.Text;
using System.Xml;
using System.Collections;
using System.IO.Packaging;

namespace Zephyr.Utils.EPPlus.Drawing.Vml
{
    internal class ExcelVmlDrawingCommentCollection : ExcelVmlDrawingBaseCollection, IEnumerable
    {
        internal RangeCollection _drawings;
        internal ExcelVmlDrawingCommentCollection(ExcelPackage pck, ExcelWorksheet ws, Uri uri) :
            base(pck, ws,uri)
        {
            if (uri == null)
            {
                VmlDrawingXml.LoadXml(CreateVmlDrawings());
                _drawings = new RangeCollection(new List<IRangeID>());
            }
            else
            {
                AddDrawingsFromXml(ws);
            }
        }
        protected void AddDrawingsFromXml(ExcelWorksheet ws)
        {
            var nodes = VmlDrawingXml.SelectNodes("//v:shape", NameSpaceManager);
            var list = new List<IRangeID>();