| /******************************************************************************* | 
 |  * 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		        2009-10-01 | 
 |  * Jan Källman		License changed GPL-->LGPL 2011-12-16 | 
 |  * Richard Tallent					Fix inadvertent removal of XML node					2012-10-31 | 
 |  * Richard Tallent					Remove VertAlign node if no alignment specified		2012-10-31 | 
 |  *******************************************************************************/ | 
 | using System; | 
 | using System.Collections.Generic; | 
 | using System.Text; | 
 | using System.Xml; | 
 | using System.Drawing; | 
 | using System.Globalization; | 
 |  | 
 | namespace OfficeOpenXml.Style | 
 | { | 
 |     /// <summary> | 
 |     /// A richtext part | 
 |     /// </summary> | 
 |     public class ExcelRichText : XmlHelper | 
 |     { | 
 |         internal ExcelRichText(XmlNamespaceManager ns, XmlNode topNode, ExcelRichTextCollection collection) : | 
 |             base(ns, topNode) | 
 |         { | 
 |             SchemaNodeOrder=new string[] {"rPr", "t", "b", "i","strike", "u", "vertAlign" , "sz", "color", "rFont", "family", "scheme", "charset"}; | 
 |             _collection = collection; | 
 |         } | 
 |         internal delegate void CallbackDelegate(); | 
 |         CallbackDelegate _callback; | 
 |         internal void SetCallback(CallbackDelegate callback) | 
 |         { | 
 |             _callback=callback; | 
 |         } | 
 |         const string TEXT_PATH="d:t"; | 
 |         /// <summary> | 
 |         /// The text | 
 |         /// </summary> | 
 |         public string Text  | 
 |         {  | 
 |  | 
 |             get | 
 |             { | 
 |                 // Bug 15151 | 
 |                 if (TopNode.Name == "t") | 
 |                     return TopNode.InnerText; | 
 |                 else | 
 |                     return GetXmlNodeString(TEXT_PATH); | 
 |             } | 
 |             set | 
 |             { | 
 |                 _collection.ConvertRichtext(); | 
 |                 // Don't remove if blank -- setting a blank rich text value on a node is common, | 
 |                 // for example when applying both bold and italic to text. | 
 |                 SetXmlNodeString(TEXT_PATH, value, false); | 
 |                 if (PreserveSpace) | 
 |                 { | 
 |                     XmlElement elem = TopNode.SelectSingleNode(TEXT_PATH, NameSpaceManager) as XmlElement; | 
 |                     elem.SetAttribute("xml:space", "preserve"); | 
 |                 } | 
 |                 if (_callback != null) _callback(); | 
 |             } | 
 |         } | 
 |         /// <summary> | 
 |         /// Preserves whitespace. Default true | 
 |         /// </summary> | 
 |         public bool PreserveSpace | 
 |         { | 
 |             get | 
 |             { | 
 |                 XmlElement elem = TopNode.SelectSingleNode(TEXT_PATH, NameSpaceManager) as XmlElement; | 
 |                 if (elem != null) | 
 |                 { | 
 |                     return elem.GetAttribute("xml:space")=="preserve"; | 
 |                 } | 
 |                 return false; | 
 |             } | 
 |             set | 
 |             { | 
 |                 _collection.ConvertRichtext(); | 
 |                 XmlElement elem = TopNode.SelectSingleNode(TEXT_PATH, NameSpaceManager) as XmlElement; | 
 |                 if (elem != null) | 
 |                 { | 
 |                     if (value) | 
 |                     { | 
 |                         elem.SetAttribute("xml:space", "preserve"); | 
 |                     } | 
 |                     else | 
 |                     { | 
 |                         elem.RemoveAttribute("xml:space"); | 
 |                     } | 
 |                 } | 
 |                 if (_callback != null) _callback(); | 
 |             } | 
 |         } | 
 |         const string BOLD_PATH = "d:rPr/d:b"; | 
 |         /// <summary> | 
 |         /// Bold text | 
 |         /// </summary> | 
 |         public bool Bold | 
 |         { | 
 |             get | 
 |             { | 
 |                 return ExistNode(BOLD_PATH); | 
 |             } | 
 |             set | 
 |             { | 
 |                 _collection.ConvertRichtext(); | 
 |                 if (value) | 
 |                 { | 
 |                     CreateNode(BOLD_PATH); | 
 |                 } | 
 |                 else | 
 |                 { | 
 |                     DeleteNode(BOLD_PATH); | 
 |                 } | 
 |                 if(_callback!=null) _callback(); | 
 |             } | 
 |         } | 
 |         const string ITALIC_PATH = "d:rPr/d:i"; | 
 |         /// <summary> | 
 |         /// Italic text | 
 |         /// </summary> | 
 |         public bool Italic | 
 |         { | 
 |             get | 
 |             { | 
 |                 //return GetXmlNodeBool(ITALIC_PATH, false); | 
 |                 return ExistNode(ITALIC_PATH); | 
 |             } | 
 |             set | 
 |             { | 
 |                 _collection.ConvertRichtext(); | 
 |                 if (value) | 
 |                 { | 
 |                     CreateNode(ITALIC_PATH); | 
 |                 } | 
 |                 else | 
 |                 { | 
 |                     DeleteNode(ITALIC_PATH); | 
 |                 } | 
 |                 if (_callback != null) _callback(); | 
 |             } | 
 |         } | 
 |         const string STRIKE_PATH = "d:rPr/d:strike"; | 
 |         /// <summary> | 
 |         /// Strike-out text | 
 |         /// </summary> | 
 |         public bool Strike | 
 |         { | 
 |             get | 
 |             { | 
 |                 return ExistNode(STRIKE_PATH); | 
 |             } | 
 |             set | 
 |             { | 
 |                 _collection.ConvertRichtext(); | 
 |                 if (value) | 
 |                 { | 
 |                     CreateNode(STRIKE_PATH); | 
 |                 } | 
 |                 else | 
 |                 { | 
 |                     DeleteNode(STRIKE_PATH); | 
 |                 } | 
 |                 if (_callback != null) _callback(); | 
 |             } | 
 |         } | 
 |         const string UNDERLINE_PATH = "d:rPr/d:u"; | 
 |         /// <summary> | 
 |         /// Underlined text | 
 |         /// </summary> | 
 |         public bool UnderLine | 
 |         { | 
 |             get | 
 |             { | 
 |                 return ExistNode(UNDERLINE_PATH); | 
 |             } | 
 |             set | 
 |             { | 
 |                 _collection.ConvertRichtext(); | 
 |                 if (value) | 
 |                 { | 
 |                     CreateNode(UNDERLINE_PATH); | 
 |                 } | 
 |                 else | 
 |                 { | 
 |                     DeleteNode(UNDERLINE_PATH); | 
 |                 } | 
 |                 if (_callback != null) _callback(); | 
 |             } | 
 |         } | 
 |  | 
 |         const string VERT_ALIGN_PATH = "d:rPr/d:vertAlign/@val"; | 
 |         /// <summary> | 
 |         /// Vertical Alignment | 
 |         /// </summary> | 
 |         public ExcelVerticalAlignmentFont VerticalAlign | 
 |         { | 
 |             get | 
 |             { | 
 |                 string v=GetXmlNodeString(VERT_ALIGN_PATH); | 
 |                 if(v=="") | 
 |                 { | 
 |                     return ExcelVerticalAlignmentFont.None; | 
 |                 } | 
 |                 else | 
 |                 { | 
 |                     try | 
 |                     { | 
 |                         return (ExcelVerticalAlignmentFont)Enum.Parse(typeof(ExcelVerticalAlignmentFont), v, true); | 
 |                     } | 
 |                     catch | 
 |                     { | 
 |                         return ExcelVerticalAlignmentFont.None; | 
 |                     } | 
 |                 } | 
 |             } | 
 |             set | 
 |             { | 
 |                 _collection.ConvertRichtext(); | 
 |                 if (value == ExcelVerticalAlignmentFont.None) | 
 |                 { | 
 | 					// If Excel 2010 encounters a vertical align value of blank, it will not load | 
 | 					// the spreadsheet. So if None is specified, delete the node, it will be  | 
 | 					// recreated if a new value is applied later. | 
 | 					DeleteNode(VERT_ALIGN_PATH); | 
 | 				} else { | 
 | 					SetXmlNodeString(VERT_ALIGN_PATH, value.ToString().ToLowerInvariant()); | 
 | 				} | 
 |                 if (_callback != null) _callback(); | 
 |             } | 
 |         } | 
 |         const string SIZE_PATH = "d:rPr/d:sz/@val"; | 
 |         /// <summary> | 
 |         /// Font size | 
 |         /// </summary> | 
 |         public float Size | 
 |         { | 
 |             get | 
 |             { | 
 |                 return Convert.ToSingle(GetXmlNodeDecimal(SIZE_PATH)); | 
 |             } | 
 |             set | 
 |             { | 
 |                 _collection.ConvertRichtext(); | 
 |                 SetXmlNodeString(SIZE_PATH, value.ToString(CultureInfo.InvariantCulture)); | 
 |                 if (_callback != null) _callback(); | 
 |             } | 
 |         } | 
 |         const string FONT_PATH = "d:rPr/d:rFont/@val"; | 
 |         /// <summary> | 
 |         /// Name of the font | 
 |         /// </summary> | 
 |         public string FontName | 
 |         { | 
 |             get | 
 |             { | 
 |                 return GetXmlNodeString(FONT_PATH); | 
 |             } | 
 |             set | 
 |             { | 
 |                 _collection.ConvertRichtext(); | 
 |                 SetXmlNodeString(FONT_PATH, value); | 
 |                 if (_callback != null) _callback(); | 
 |             } | 
 |         } | 
 |         const string COLOR_PATH = "d:rPr/d:color/@rgb"; | 
 |         /// <summary> | 
 |         /// Text color | 
 |         /// </summary> | 
 |         public Color Color | 
 |         { | 
 |             get | 
 |             { | 
 |                 string col = GetXmlNodeString(COLOR_PATH); | 
 |                 if (col == "") | 
 |                 { | 
 |                     return Color.Empty; | 
 |                 } | 
 |                 else | 
 |                 { | 
 |                     return Color.FromArgb(int.Parse(col, System.Globalization.NumberStyles.AllowHexSpecifier)); | 
 |                 } | 
 |             } | 
 |             set | 
 |             { | 
 |                 _collection.ConvertRichtext(); | 
 |                 SetXmlNodeString(COLOR_PATH, value.ToArgb().ToString("X")/*.Substring(2, 6)*/); | 
 |                 if (_callback != null) _callback(); | 
 |             } | 
 |         } | 
 |  | 
 |         public ExcelRichTextCollection _collection { get; set; } | 
 |     } | 
 | } |