/*******************************************************************************
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* You may amend and distribute as you like, but don't remove this header!
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*
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* EPPlus provides server-side generation of Excel 2007/2010 spreadsheets.
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* See http://www.codeplex.com/EPPlus for details.
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*
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* Copyright (C) 2011 Jan Källman
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU Lesser General Public License for more details.
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*
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* The GNU Lesser General Public License can be viewed at http://www.opensource.org/licenses/lgpl-license.php
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* If you unfamiliar with this license or have questions about it, here is an http://www.gnu.org/licenses/gpl-faq.html
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*
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* All code and executables are provided "as is" with no warranty either express or implied.
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* The author accepts no liability for any damage or loss of business that this product may cause.
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*
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* Code change notes:
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*
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* Author Change Date
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* ******************************************************************************
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* Jan Källman Initial Release 2010-06-01
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* Jan Källman License changed GPL-->LGPL 2011-12-16
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*******************************************************************************/
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using System;
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using System.Collections.Generic;
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using System.Text;
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using System.Xml;
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using System.Collections;
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using System.IO.Packaging;
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using System.Globalization;
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namespace HH.WMS.Utils.EPPlus.Drawing.Vml
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{
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public class ExcelVmlDrawingPictureCollection : ExcelVmlDrawingBaseCollection, IEnumerable
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{
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internal List<ExcelVmlDrawingPicture> _images;
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ExcelPackage _pck;
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ExcelWorksheet _ws;
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internal ExcelVmlDrawingPictureCollection(ExcelPackage pck, ExcelWorksheet ws, Uri uri) :
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base(pck, ws, uri)
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{
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_pck = pck;
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_ws = ws;
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if (uri == null)
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{
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VmlDrawingXml.LoadXml(CreateVmlDrawings());
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_images = new List<ExcelVmlDrawingPicture>();
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}
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else
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{
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AddDrawingsFromXml();
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}
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}
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private void AddDrawingsFromXml()
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{
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var nodes = VmlDrawingXml.SelectNodes("//v:shape", NameSpaceManager);
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_images = new List<ExcelVmlDrawingPicture>();
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foreach (XmlNode node in nodes)
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{
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var img = new ExcelVmlDrawingPicture(node, NameSpaceManager, _ws);
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var rel = Part.GetRelationship(img.RelId);
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img.ImageUri = PackUriHelper.ResolvePartUri(rel.SourceUri, rel.TargetUri);
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_images.Add(img);
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}
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}
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private string CreateVmlDrawings()
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{
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string vml=string.Format("<xml xmlns:v=\"{0}\" xmlns:o=\"{1}\" xmlns:x=\"{2}\">",
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ExcelPackage.schemaMicrosoftVml,
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ExcelPackage.schemaMicrosoftOffice,
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ExcelPackage.schemaMicrosoftExcel);
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vml+="<o:shapelayout v:ext=\"edit\">";
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vml+="<o:idmap v:ext=\"edit\" data=\"1\"/>";
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vml+="</o:shapelayout>";
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vml+="<v:shapetype id=\"_x0000_t202\" coordsize=\"21600,21600\" o:spt=\"202\" path=\"m,l,21600r21600,l21600,xe\">";
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vml+="<v:stroke joinstyle=\"miter\" />";
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vml+="<v:path gradientshapeok=\"t\" o:connecttype=\"rect\" />";
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vml+="</v:shapetype>";
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vml+= "</xml>";
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return vml;
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}
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internal ExcelVmlDrawingPicture Add(string id, Uri uri, string name, double width, double height)
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{
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XmlNode node = AddImage(id, uri, name, width, height);
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var draw = new ExcelVmlDrawingPicture(node, NameSpaceManager, _ws);
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draw.ImageUri = uri;
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_images.Add(draw);
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return draw;
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}
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private XmlNode AddImage(string id, Uri targeUri, string Name, double width, double height)
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{
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var node = VmlDrawingXml.CreateElement("v", "shape", ExcelPackage.schemaMicrosoftVml);
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VmlDrawingXml.DocumentElement.AppendChild(node);
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node.SetAttribute("id", id);
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node.SetAttribute("o:type", "#_x0000_t75");
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node.SetAttribute("style", string.Format("position:absolute;margin-left:0;margin-top:0;width:{0}pt;height:{1}pt;z-index:1", width.ToString(CultureInfo.InvariantCulture), height.ToString(CultureInfo.InvariantCulture)));
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//node.SetAttribute("fillcolor", "#ffffe1");
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//node.SetAttribute("insetmode", ExcelPackage.schemaMicrosoftOffice, "auto");
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node.InnerXml = string.Format("<v:imagedata o:relid=\"\" o:title=\"{0}\"/><o:lock v:ext=\"edit\" rotation=\"t\"/>", Name);
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return node;
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}
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/// <summary>
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/// Indexer
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/// </summary>
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/// <param name="Index">Index</param>
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/// <returns>The VML Drawing Picture object</returns>
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public ExcelVmlDrawingPicture this[int Index]
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{
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get
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{
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return _images[Index] as ExcelVmlDrawingPicture;
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}
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}
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public int Count
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{
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get
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{
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return _images.Count;
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}
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}
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int _nextID = 0;
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/// <summary>
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/// returns the next drawing id.
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/// </summary>
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/// <returns></returns>
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internal string GetNewId()
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{
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if (_nextID == 0)
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{
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foreach (ExcelVmlDrawingComment draw in this)
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{
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if (draw.Id.Length > 3 && draw.Id.StartsWith("vml"))
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{
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int id;
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if (int.TryParse(draw.Id.Substring(3, draw.Id.Length - 3), out id))
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{
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if (id > _nextID)
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{
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_nextID = id;
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}
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}
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}
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}
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}
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_nextID++;
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return "vml" + _nextID.ToString();
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}
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#region IEnumerable Members
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IEnumerator IEnumerable.GetEnumerator()
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{
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return _images.GetEnumerator();
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}
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#endregion
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}
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}
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