/*******************************************************************************
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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 Added 2009-10-01
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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 HH.WMS.Utils.EPPlus.Style;
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namespace HH.WMS.Utils.EPPlus.Drawing.Chart
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{
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/// <summary>
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/// Position of the legend
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/// </summary>
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public enum eLegendPosition
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{
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Top,
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Left,
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Right,
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Bottom,
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TopRight
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}
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/// <summary>
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/// Chart ledger
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/// </summary>
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public class ExcelChartLegend : XmlHelper
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{
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ExcelChart _chart;
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internal ExcelChartLegend(XmlNamespaceManager ns, XmlNode node, ExcelChart chart)
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: base(ns,node)
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{
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_chart=chart;
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SchemaNodeOrder = new string[] { "legendPos", "layout","overlay", "txPr", "bodyPr", "lstStyle", "spPr" };
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}
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const string POSITION_PATH = "c:legendPos/@val";
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/// <summary>
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/// Position of the Legend
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/// </summary>
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public eLegendPosition Position
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{
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get
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{
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switch(GetXmlNodeString(POSITION_PATH).ToLower())
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{
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case "t":
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return eLegendPosition.Top;
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case "b":
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return eLegendPosition.Bottom;
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case "l":
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return eLegendPosition.Left;
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case "tr":
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return eLegendPosition.TopRight;
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default:
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return eLegendPosition.Right;
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}
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}
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set
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{
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if (TopNode == null) throw(new Exception("Can't set position. Chart has no legend"));
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switch (value)
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{
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case eLegendPosition.Top:
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SetXmlNodeString(POSITION_PATH, "t");
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break;
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case eLegendPosition.Bottom:
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SetXmlNodeString(POSITION_PATH, "b");
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break;
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case eLegendPosition.Left:
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SetXmlNodeString(POSITION_PATH, "l");
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break;
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case eLegendPosition.TopRight:
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SetXmlNodeString(POSITION_PATH, "tr");
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break;
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default:
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SetXmlNodeString(POSITION_PATH, "r");
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break;
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}
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}
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}
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const string OVERLAY_PATH = "c:overlay/@val";
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/// <summary>
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/// If the legend overlays other objects
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/// </summary>
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public bool Overlay
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{
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get
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{
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return GetXmlNodeBool(OVERLAY_PATH);
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}
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set
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{
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if (TopNode == null) throw (new Exception("Can't set overlay. Chart has no legend"));
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SetXmlNodeBool(OVERLAY_PATH, value);
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}
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}
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ExcelDrawingFill _fill = null;
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/// <summary>
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/// Fill style
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/// </summary>
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public ExcelDrawingFill Fill
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{
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get
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{
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if (_fill == null)
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{
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_fill = new ExcelDrawingFill(NameSpaceManager, TopNode, "c:spPr");
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}
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return _fill;
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}
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}
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ExcelDrawingBorder _border = null;
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/// <summary>
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/// Border style
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/// </summary>
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public ExcelDrawingBorder Border
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{
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get
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{
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if (_border == null)
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{
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_border = new ExcelDrawingBorder(NameSpaceManager, TopNode, "c:spPr/a:ln");
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}
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return _border;
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}
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}
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ExcelTextFont _font = null;
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/// <summary>
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/// Font properties
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/// </summary>
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public ExcelTextFont Font
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{
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get
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{
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if (_font == null)
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{
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if (TopNode.SelectSingleNode("c:txPr",NameSpaceManager) == null)
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{
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CreateNode("c:txPr/a:bodyPr");
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CreateNode("c:txPr/a:lstStyle");
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}
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_font = new ExcelTextFont(NameSpaceManager, TopNode, "c:txPr/a:p/a:pPr/a:defRPr", new string[] { "legendPos", "layout", "pPr", "defRPr", "solidFill", "uFill", "latin", "cs", "r", "rPr", "t" });
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}
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return _font;
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}
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}
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/// <summary>
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/// Remove the legend
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/// </summary>
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public void Remove()
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{
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if (TopNode == null) return;
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TopNode.ParentNode.RemoveChild(TopNode);
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TopNode = null;
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}
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/// <summary>
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/// Add a legend to the chart
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/// </summary>
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public void Add()
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{
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if(TopNode!=null) return;
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//XmlHelper xml = new XmlHelper(NameSpaceManager, _chart.ChartXml);
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XmlHelper xml = XmlHelperFactory.Create(NameSpaceManager, _chart.ChartXml);
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xml.SchemaNodeOrder=_chart.SchemaNodeOrder;
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xml.CreateNode("c:chartSpace/c:chart/c:legend");
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TopNode = _chart.ChartXml.SelectSingleNode("c:chartSpace/c:chart/c:legend", NameSpaceManager);
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TopNode.InnerXml="<c:legendPos val=\"r\" /><c:layout />";
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}
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}
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}
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