OpenXML Word docx 添加水印 PowerTools

/*
    Microshaoft 本文代码改自
    http://powertools.codeplex.com/
    http://powertools.codeplex.com/releases/view/74771#DownloadId=291022
    文本水印、透明度、旋转
    使用本文代码替代 Classes\WatermarkAccessor.cs 文件中的代码
    Classes 目录下供 34个文件清单如下:
    Classes\BackgroundAccessor.cs
    Classes\ChartsheetAccessor.cs
    Classes\CommentAccessor.cs
    Classes\CommentMerger.cs
    Classes\ContentFormatAccessor.cs
    Classes\ContentStyleAccessor.cs
    Classes\CustomXmlAccessor.cs
    Classes\DigitalSignatureAccessor.cs
    Classes\DocumentBuilder.cs
    Classes\DocumentComparer.cs
    Classes\FooterAccessor.cs
    Classes\HeaderAccessor.cs
    Classes\HtmlConverter.cs
    Classes\IndexAccessor.cs
    Classes\ListItemRetriever.cs
    Classes\MarkupSimplifier.cs
    Classes\PictureAccessor.cs
    Classes\PowerToolsExtensions.cs
    Classes\PtOpenXmlDocument.cs
    Classes\PtOpenXmlUtil.cs
    Classes\PtUtil.cs
    Classes\ReferenceAdder.cs
    Classes\RevisionAccepter.cs
    Classes\SettingAccessor.cs
    Classes\SpreadsheetDocumentManager.cs
    Classes\SpreadSheetStyleAccessor.cs
    Classes\SpreadSheetTableAccessor.cs
    Classes\StyleAccessor.cs
    Classes\TextReplacer.cs
    Classes\ThemeAccessor.cs
    Classes\WatermarkAccessor.cs
    Classes\WordprocessingDocumentManager.cs
    Classes\WorksheetAccessor.cs
    %windir%\Microsoft.NET\Framework\v4.0.30319\csc.exe /out:OpenXmlWordAddWaterMark.exe *.cs /r:"C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.0\WindowsBase.dll","C:\Program Files (x86)\Open XML SDK\V2.0\lib\DocumentFormat.OpenXml.dll"
*/
namespace Microshaoft
{
    using System;
    using System.Collections.Generic;
    using System.IO;
    using System.Linq;
    using System.Text;
    using OpenXmlPowerTools;
    class Class1
    {
        static void Main(string[] args)
        {
            // "position:absolute;margin-left:0;margin-top:0;527.85pt;height:131.95pt;rotation:315;z-index:-251656192;mso-position-horizontal:center;mso-position-horizontal-relative:margin;mso-position-vertical:center;mso-position-vertical-relative:margin";
            WmlDocument wmlDoc = new WmlDocument(@"d:\a.docx");
            OpenXmlPowerToolsDocument doc = WatermarkAccessor.InsertWatermark
                                        (
                                            wmlDoc
                                            , "测试123abcABC@Microshaoft"
                                            , 527
                                            , 200
                                            , 110
                                            , "楷体"
                                            , 10
                                            , "red"
                                            , 10
                                        );
            doc.SaveAs(@"d:\a1.docx");
        }
    }
}
namespace OpenXmlPowerTools
{
    /***************************************************************************
    Copyright (c) Microsoft Corporation 2011.
    This code is licensed using the Microsoft Public License (Ms-PL).  The text of the license can be found here:
    http://www.microsoft.com/resources/sharedsource/licensingbasics/publiclicense.mspx
    ***************************************************************************/
    using System.Collections.Generic;
    using System.Collections.ObjectModel;
    using System.Linq;
    using System.Xml.Linq;
    using DocumentFormat.OpenXml.Packaging;
    using System.Drawing;
    /// <summary>
    /// Provides access to watermark operations
    /// </summary>
    public class WatermarkAccessor
    {
        private static XNamespace ns;
        private static XNamespace officens;
        private static XNamespace vmlns;
        private static XNamespace relationshipsns;
        private static string diagonalWatermarkStyle = "position:absolute;margin-left:0;margin-top:0;527.85pt;height:131.95pt;rotation:315;z-index:-251656192;mso-position-horizontal:center;mso-position-horizontal-relative:margin;mso-position-vertical:center;mso-position-vertical-relative:margin";
        private static string fontFamilySizeStyle = "font-family:&quot;Calibri&quot;;font-size:1pt";
        private static string fillColor = "black";
        private static int opacity = 50;
        //private static string defaultWatermarkStyle = "position:absolute;margin-left:0;margin-top:0;468pt;height:117pt;z-index:-251652096;mso-position-horizontal:center;mso-position-horizontal-relative:margin;mso-position-vertical:center;mso-position-vertical-relative:margin";
        static WatermarkAccessor()
        {
            ns = "http://schemas.openxmlformats.org/wordprocessingml/2006/main";
            officens = "urn:schemas-microsoft-com:office:office";
            vmlns = "urn:schemas-microsoft-com:vml";
            relationshipsns = "http://schemas.openxmlformats.org/officeDocument/2006/relationships";
        }
        /// <summary>
        /// Inserts a watermark text inside a document
        /// </summary>
        /// <param name="watermarkText">text to show in the watermark</param>
        /// <param name="diagonalOrientation">specify that the text orientation will be in a diagonal way</param>
        public static OpenXmlPowerToolsDocument InsertWatermark
                                                    (
                                                        WmlDocument doc
                                                        , string watermarkText
                                                        , int width
                                                        , int height
                                                        , int rotation
                                                        , string fontFamilyName
                                                        , int fontSize
                                                        , string fillColor
                                                        , int opacityPercent
                                                        //, bool diagonalOrientation
                                                    )
        {
            // "position:absolute;margin-left:0;margin-top:0;527.85pt;height:131.95pt;rotation:315;z-index:-251656192;mso-position-horizontal:center;mso-position-horizontal-relative:margin;mso-position-vertical:center;mso-position-vertical-relative:margin";
            diagonalWatermarkStyle = string.Format
                                                (
                                                    @"
                                                        position:absolute;
                                                        margin-left:0;
                                                        margin-top:0;
                                                        {0}pt;
                                                        height:{1}pt;
                                                        rotation:{2};
                                                        z-index:-251656192;
                                                        mso-position-horizontal:center;
                                                        mso-position-horizontal-relative:margin;
                                                        mso-position-vertical:center;
                                                        mso-position-vertical-relative:margin
                                                    "
                                                    , width
                                                    , height
                                                    , rotation
                                                );
            fontFamilySizeStyle = string.Format
                                            (
                                                @"
                                                    font-family:&quot;{0}&quot;
                                                    ;
                                                    font-size:{1}pt
                                                "
                                                , fontFamilyName
                                                , fontSize
                                            );
            opacity = opacityPercent;
            //diagonalWatermarkStyle="position:absolute;margin-left:0;margin-top:0;527.85pt;height:131.95pt;rotation:315;z-index:-251656192;mso-position-horizontal:center;mso-position-horizontal-relative:margin;mso-position-vertical:center;mso-position-vertical-relative:margin";
            //defaultWatermarkStyle =  "position:absolute;margin-left:0;margin-top:0;468pt;        height:117pt;                    z-index:-251652096;mso-position-horizontal:center;mso-position-horizontal-relative:margin;mso-position-vertical:center;mso-position-vertical-relative:margin";
            using (OpenXmlMemoryStreamDocument streamDoc = new OpenXmlMemoryStreamDocument(doc))
            {
                using (WordprocessingDocument document = streamDoc.GetWordprocessingDocument())
                {
                    Collection<XDocument> headers = new Collection<XDocument>();
                    if (HeaderAccessor.GetHeaderReference(document, HeaderType.First, 0) == null)
                        headers.Add(HeaderAccessor.AddNewHeader(document, HeaderType.First));
                    else
                        headers.Add(HeaderAccessor.GetHeader(document, HeaderType.First, 0));
                    if (HeaderAccessor.GetHeaderReference(document, HeaderType.Even, 0) == null)
                        headers.Add(HeaderAccessor.AddNewHeader(document, HeaderType.Even));
                    else
                        headers.Add(HeaderAccessor.GetHeader(document, HeaderType.Even, 0));
                    if (HeaderAccessor.GetHeaderReference(document, HeaderType.Default, 0) == null)
                        headers.Add(HeaderAccessor.AddNewHeader(document, HeaderType.Default));
                    else
                        headers.Add(HeaderAccessor.GetHeader(document, HeaderType.Default, 0));
                    foreach (XDocument header in headers)
                    {
                        var runElement = header.Descendants(ns + "r").FirstOrDefault();
                        if (runElement == null)
                        {
                            header.Root.Add(
                                new XElement(ns + "sdt",
                                    new XElement(ns + "sdtContent",
                                        new XElement(ns + "p",
                                            new XElement(ns + "pPr",
                                                new XElement(ns + "pStyle",
                                                    new XAttribute(ns + "val", "Header")
                                                )
                                            ),
                                            runElement = new XElement(ns + "r")
                                        )
                                    )
                                )
                            );
                        }
                        runElement.AddBeforeSelf(CreateWatermarkVml(watermarkText));
                    }
                    HeaderAccessor.GetHeaderPart(document, HeaderType.First, 0).PutXDocument();
                    HeaderAccessor.GetHeaderPart(document, HeaderType.Even, 0).PutXDocument();
                    HeaderAccessor.GetHeaderPart(document, HeaderType.Default, 0).PutXDocument();
                }
                return streamDoc.GetModifiedDocument();
            }
        }
        /// <summary>
        /// Creates the markup for watermark displaying
        /// </summary>
        /// <param name="watermarkText">Text to include in markup</param>
        /// <param name="diagonalOrientation">Orientation of text</param>
        /// <returns>Watermark markup</returns>
        private static XElement CreateWatermarkVml(string watermarkText)
        {
                return new XElement(ns + "r",
                    new XElement(ns + "pict",
                        new XElement(vmlns + "shapetype",
                            new XAttribute("id", "_x0000_t136"),
                            new XAttribute("coordsize", "21600,21600"),
                            new XAttribute(officens + "spt", "136"),
                            new XAttribute("adj", "10800"),
                            new XAttribute("path", "m@7,l@8,m@5,21600l@6,21600e"),
                            new XElement(vmlns + "formulas",
                                new XElement(vmlns + "f",
                                    new XAttribute("eqn", "sum #0 0 10800")
                                ),
                                new XElement(vmlns + "f",
                                    new XAttribute("eqn", "prod #0 2 1")
                                ),
                                new XElement(vmlns + "f",
                                    new XAttribute("eqn", "sum 21600 0 @1")
                                ),
                                new XElement(vmlns + "f",
                                    new XAttribute("eqn", "sum 0 0 @2")
                                ),
                                new XElement(vmlns + "f",
                                    new XAttribute("eqn", "sum 21600 0 @3")
                                ),
                                new XElement(vmlns + "f",
                                    new XAttribute("eqn", "if @0 @3 0")
                                ),
                                new XElement(vmlns + "f",
                                    new XAttribute("eqn", "if @0 21600 @1")
                                ),
                                new XElement(vmlns + "f",
                                    new XAttribute("eqn", "if @0 0 @2")
                                ),
                                new XElement(vmlns + "f",
                                    new XAttribute("eqn", "if @0 @4 21600")
                                ),
                                new XElement(vmlns + "f",
                                    new XAttribute("eqn", "mid @5 @6")
                                ),
                                new XElement(vmlns + "f",
                                    new XAttribute("eqn", "mid @8 @5")
                                ),
                                new XElement(vmlns + "f",
                                    new XAttribute("eqn", "mid @7 @8")
                                ),
                                new XElement(vmlns + "f",
                                    new XAttribute("eqn", "mid @6 @7")
                                ),
                                new XElement(vmlns + "f",
                                    new XAttribute("eqn", "sum @6 0 @5")
                                )
                            ),
                            new XElement(vmlns + "path",
                                new XAttribute("textpathok", "t"),
                                new XAttribute(officens + "connecttype", "custom"),
                                new XAttribute(officens + "connectlocs", "@9,0;@10,10800;@11,21600;@12,10800"),
                                new XAttribute(officens + "connectangles", "270,180,90,0")
                            ),
                            new XElement(vmlns + "textpath",
                                new XAttribute("on", "t"),
                                new XAttribute("fitshape", "t")
                            ),
                            new XElement(vmlns + "handles",
                                new XElement(vmlns + "h",
                                    new XAttribute("position", "#0,bottomRight"),
                                    new XAttribute("xrange", "6629,14971")
                                )
                            ),
                            new XElement(officens + "lock",
                                new XAttribute(vmlns + "ext", "edit"),
                                new XAttribute("text", "t"),
                                new XAttribute("shapetype", "t")
                            )
                        ),
                        new XElement(vmlns + "shape",
                            new XAttribute("id", "PowerPlusWaterMarkObject98078923"),
                            new XAttribute(officens + "spid", "_x0000_s2055"),
                            new XAttribute("type", "#_x0000_t136"),
                            //new XAttribute("style", diagonalOrientation ? diagonalWatermarkStyle : defaultWatermarkStyle),
                            new XAttribute("style", diagonalWatermarkStyle),
                            new XAttribute(officens + "allowincell", "f"),
                            new XAttribute("fillcolor", fillColor),
                            new XAttribute("stroked", "f"),
                            new XElement(vmlns + "fill",
                                new XAttribute("opacity", opacity/100.0)
                            ),
                            new XElement(vmlns + "textpath",
                                new XAttribute("style", fontFamilySizeStyle),
                                new XAttribute("string", watermarkText)
                            )
                        )
                    )
                );
        }
        /// <summary>
        /// Gets the text related to watermark from a document
        /// </summary>
        /// <returns>Watermark text</returns>
        public static string GetWatermarkText(WmlDocument doc)
        {
            IEnumerable<XElement> watermarkDescription = GetWatermark(doc);
            if (watermarkDescription != null)
                return
                    watermarkDescription
                    .Descendants(vmlns + "shape")
                    .Descendants(vmlns + "textpath")
                    .First()
                    .Attribute("string")
                    .Value;
            else
                return string.Empty;
        }
        /// <summary>
        /// Gets the document structure related to watermark description
        /// </summary>
        /// <returns>Document structure related to watermark description</returns>
        public static IEnumerable<XElement> GetWatermark(WmlDocument doc)
        {
            using (OpenXmlMemoryStreamDocument streamDoc = new OpenXmlMemoryStreamDocument(doc))
            using (WordprocessingDocument document = streamDoc.GetWordprocessingDocument())
            {
                //  to get the watermark text, we have to look inside the document
                //  get the default header reference and get the header reference id part
                XElement defaultHeaderReference = HeaderAccessor.GetHeaderReference(document, HeaderType.Default, 0);
                if (defaultHeaderReference != null)
                {
                    string headerReferenceId = defaultHeaderReference.Attribute(relationshipsns + "id").Value;
                    OpenXmlPart headerPart = document.MainDocumentPart.GetPartById(headerReferenceId);
                    if (headerPart != null)
                    {
                        XDocument headerPartXml = headerPart.GetXDocument();
                        return headerPartXml.Descendants(ns + "pict");
                    }
                }
                return null;
            }
        }
    }
}