WFP: 读取XPS文件或将word、txt文件转化为XPS文件

读取XPS格式文件或将doc，txt文件转化为XPS文件，效果图如下：

1.XAML页面代码：

<Window x:Class="WpfWord.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="WordReader" Height="500" Width="900">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition/>
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="0" Name="cdTree"/>
            <ColumnDefinition Width="auto"/>
            <ColumnDefinition Width="3*"/>
        </Grid.ColumnDefinitions>
        <GroupBox Header="导航目录">
            <TreeView Name="tvTree" SelectedItemChanged="tvTree_SelectedItemChanged"/>
        </GroupBox>
        <GridSplitter Width="3" ResizeBehavior="PreviousAndNext" Grid.Column="1" Background="LightGray"/>
        <Grid Grid.Column="3">
            <Grid.RowDefinitions>
                <RowDefinition Height="auto"/>
                <RowDefinition Height="*"/>
            </Grid.RowDefinitions>
            <DocumentViewer Name="dvShow" Grid.Row="1"/>
            <StackPanel Grid.Row="0" Orientation="Horizontal" HorizontalAlignment="Right">
                <CheckBox Content="显示导航" Height="16" Margin="5" Name="cbNav" Width="75" Click="cbNav_Click" />
                <Label Content="页面"/>
                <Label Name="lblCurPage" Margin="0"/>
                <Label Name="lblPage"/>
                <Button Content="上一页" Height="23" Name="btnPrev" Width="75" Click="btnPrev_Click" />
                <Button Content="下一页" Height="23" Name="btnNext" Width="75" Click="btnNext_Click" />
                <Label Content="总字数:" Name="lblWordCount"/>
            </StackPanel>
        </Grid>
    </Grid>
</Window>

2.后台CS文件代码：

首先引用Microsoft.Office.Interop.Word.dll;

//具体代码如下↓

using System;
using System.IO;
using System.Linq;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Xps.Packaging;
using System.Xml;
using Microsoft.Office.Interop.Word;

namespace WpfWord
{
    /// <summary>
    /// MainWindow.xaml 的交互逻辑
    /// </summary>
    public partial class MainWindow : System.Windows.Window
    {

        #region 全局变量

        /// <summary>
        /// 用于存放目录文档各节点OutlineLevel值,并转化为int型
        /// </summary>
        int[] array = null;      
  
        /// <summary>
        /// 用于存放目录文档各节点OutlineLevel值
        /// </summary>
        string[] array1 = null;     

        /// <summary>
        /// 用于存放目录文档各节点Description值,章节信息
        /// </summary>
        string[] arrayName = null;  

        /// <summary>
        /// 用于存放目录文档各节点OutlineTarget值,页码信息
        /// </summary>
        string[] pages = null;      

        #endregion

        public MainWindow()
        {
            InitializeComponent();
            OpenFile(null);
        }

        /// <summary>
        /// 构造函数
        /// </summary>
        /// <param name="strFilePath">文件路径</param>
        public MainWindow(string strFilePath)
            : this()
        {
        }

        #region 方法

        /// <summary>
        /// 读取导航目录
        /// </summary>
        private void ReadDoc(XpsDocument xpsDoc)
        {
            IXpsFixedDocumentSequenceReader docSeq = xpsDoc.FixedDocumentSequenceReader;
            IXpsFixedDocumentReader docReader = docSeq.FixedDocuments[0];
            XpsStructure xpsStructure = docReader.DocumentStructure;
            Stream stream = xpsStructure.GetStream();
            XmlDocument doc = new XmlDocument();
            doc.Load(stream);
            //获取节点列表
            XmlNodeList nodeList = doc.ChildNodes.Item(0).FirstChild.FirstChild.ChildNodes;
            if (nodeList.Count <= 0)//判断是否存在目录节点
            {
                //tvTree.Visibility = System.Windows.Visibility.Hidden;
                tvTree.Items.Add(new TreeViewItem { Header = "没有导航目录" });
                return;
            }
            tvTree.Visibility = System.Windows.Visibility.Visible;

            array = new int[nodeList.Count];
            array1 = new string[nodeList.Count];
            arrayName = new string[nodeList.Count];
            pages = new string[nodeList.Count];
            for (int i = 0; i < nodeList.Count; i++)
            {
                array[i] = Convert.ToInt32(nodeList[i].Attributes["OutlineLevel"].Value);
                array1[i] = nodeList[i].Attributes["OutlineLevel"].Value.ToString();
                arrayName[i] = nodeList[i].Attributes["Description"].Value.ToString();
                pages[i] = nodeList[i].Attributes["OutlineTarget"].Value.ToString();
            }

            for (int i = 0; i < array.Length - 1; i++)
            {
                //对array进行转换组装成可读的树形结构，通过ASCII值进行增加、转换
                array1[0] = "A";
                if (array[i + 1] - array[i] == 1)
                {
                    array1[i + 1] = array1[i] + 'A';
                }
                if (array[i + 1] == array[i])
                {
                    char s = Convert.ToChar(array1[i].Substring((array1[i].Length - 1), 1));
                    array1[i + 1] = array1[i].Substring(0, array1[i].Length - 1) + (char)(s + 1);
                }
                if (array[i + 1] < array[i])
                {
                    int m = array[i + 1];
                    char s = Convert.ToChar(array1[i].Substring(0, m).Substring(m - 1, 1));
                    array1[i + 1] = array1[i].Substring(0, m - 1) + (char)(s + 1);
                }
            }

            //添加一个节点作为根节点
            TreeViewItem parent = new TreeViewItem();
            TreeViewItem parent1 = null;
            parent.Header = "目录导航";
            Boolean flag = false;
            for (int i = 0; i < array.Length; i++)
            {
                if (array[i] == 1)
                {
                    flag = true;
                }
                if (flag) //如果找到实际根节点，加载树
                {
                    parent1 = new TreeViewItem();
                    parent1.Header = arrayName[i];
                    parent1.Tag = array1[i];
                    parent.Items.Add(parent1);
                    parent.IsExpanded = true;
                    parent1.IsExpanded = true;
                    FillTree(parent1, array1, arrayName);
                    flag = false;
                }
            }

            tvTree.Items.Clear();
            tvTree.Items.Add(parent);

        }

        /// <summary>
        /// 填充树的方法
        /// </summary>
        /// <param name="parentItem"></param>
        /// <param name="str1"></param>
        /// <param name="str2"></param>
        public void FillTree(TreeViewItem parentItem, string[] str1, string[] str2)
        {
            string parentID = parentItem.Tag as string;
            for (int i = 0; i < str1.Length; i++)
            {
                if (str1[i].IndexOf(parentID) == 0 && str1[i].Length == (parentID.Length + 1) && str1[i].ElementAt(0).Equals(parentID.ElementAt(0)))
                {
                    TreeViewItem childItem = new TreeViewItem();
                    childItem.Header = str2[i];
                    childItem.Tag = str1[i];
                    parentItem.Items.Add(childItem);
                    FillTree(childItem, str1, str2);
                }
            }
        }

        /// <summary>
        /// 打开文件-如果传入路径为空则在此打开选择文件对话框
        /// </summary>
        /// <param name="strFilepath">传入文件全路径</param>
        private void OpenFile(string strFilepath)
        {
            if (string.IsNullOrEmpty(strFilepath))
            {
                Microsoft.Win32.OpenFileDialog openFileDialog = new Microsoft.Win32.OpenFileDialog();
                openFileDialog.DefaultExt = ".doc|.txt|.xps";
                openFileDialog.Filter = "*(.xps)|*.xps|Word documents (.doc)|*.doc|Word(2007-2010)(.docx)|*.docx|*(.txt)|*.txt";
                Nullable<bool> result = openFileDialog.ShowDialog();
                strFilepath = openFileDialog.FileName;
                if (result != true)
                {
                    return;
                }
            }
            this.Title = strFilepath.Substring(strFilepath.LastIndexOf("\")+1);
            if (strFilepath.Length > 0)
            {
                XpsDocument xpsDoc = null;
                //如果是xps文件直接打开，否则需转换格式
                if (!strFilepath.EndsWith(".xps"))
                {
                    string newXPSdocName = String.Concat(System.IO.Path.GetDirectoryName(strFilepath), "\", System.IO.Path.GetFileNameWithoutExtension(strFilepath), ".xps");
                    xpsDoc = ConvertWordToXPS(strFilepath, newXPSdocName);
                }
                else
                {
                    xpsDoc = new XpsDocument(strFilepath, System.IO.FileAccess.Read);
                }
                if (xpsDoc != null)
                {
                    dvShow.Document = xpsDoc.GetFixedDocumentSequence();

                    //读取文档目录
                    ReadDoc(xpsDoc);
                    xpsDoc.Close();
                }
                this.lblCurPage.Content = 0;
                this.lblPage.Content = "/" + dvShow.PageCount;
            }
        }

        /// <summary>
        /// 将word文档转换为xps文档
        /// </summary>
        /// <param name="wordDocName">word文档全路径</param>
        /// <param name="xpsDocName">xps文档全路径</param>
        /// <returns></returns>
        private XpsDocument ConvertWordToXPS(string wordDocName, string xpsDocName)
        {
            XpsDocument result = null;

            //创建一个word文档，并将要转换的文档添加到新创建的对象
            Microsoft.Office.Interop.Word.Application wordApplication = new Microsoft.Office.Interop.Word.Application();

            try
            {

                wordApplication.Documents.Add(wordDocName);
                Document doc = wordApplication.ActiveDocument;
                doc.ExportAsFixedFormat(xpsDocName, WdExportFormat.wdExportFormatXPS, false, WdExportOptimizeFor.wdExportOptimizeForPrint, WdExportRange.wdExportAllDocument, 0, 0, WdExportItem.wdExportDocumentContent, true, true, WdExportCreateBookmarks.wdExportCreateHeadingBookmarks, true, true, false, Type.Missing);
                result = new XpsDocument(xpsDocName, System.IO.FileAccess.ReadWrite);

            }
            catch (Exception ex)
            {
                string error = ex.Message;
                wordApplication.Quit(WdSaveOptions.wdDoNotSaveChanges);
            }

            wordApplication.Quit(WdSaveOptions.wdDoNotSaveChanges);

            return result;
        }

        #endregion

        /// <summary>
        /// 导航树跳转事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void tvTree_SelectedItemChanged(object sender, RoutedPropertyChangedEventArgs<object> e)
        {
            int x = 0;
            TreeViewItem selectTV = this.tvTree.SelectedItem as TreeViewItem;
            if (null == selectTV)
                return;

            if (null == selectTV.Tag)
                return;

            string page = selectTV.Tag.ToString();
            for (int i = 0; i < array1.Length; i++)
            {
                if (array1[i].Equals(page))
                {
                    x = i;
                }
            }
            string[] strPages = pages[x].Split('_');
            dvShow.GoToPage(Int32.Parse(strPages[1]));
        }

        private void cbNav_Click(object sender, RoutedEventArgs e)
        {
            this.cdTree.Width = this.cbNav.IsChecked == true ? new GridLength(300) : new GridLength(0);
        }

        private void btnPrev_Click(object sender, RoutedEventArgs e)
        {
            this.dvShow.PreviousPage();
        }

        private void btnNext_Click(object sender, RoutedEventArgs e)
        {
            this.dvShow.NextPage();
        }

    }
}