/// <summary>
/// Returns a newly started task that combines all source PDF files into one target file.
/// </summary>
/// <param name="sourceFiles"></param>
/// <param name="targetFile"></param>
/// <returns></returns>
public async Task <string> BindPDFAsync(IList <IPDFStateFile> sourceFiles
, IPDFFile targetFile
, IProgress progress)
{
try
{
return(await Task.Factory.StartNew <string>(() =>
{
progress.Reset(0, (sourceFiles.Count * 2) - 1, 0);
progress.IsVisible = true;
bool IsOK = true;
progress.Start(0);
// Testing all source files
for (int i = 0; i < sourceFiles.Count; i++)
{
sourceFiles[i].State = TestSourceFile(sourceFiles[i].FileName);
progress.Value++;
if (sourceFiles[i].State != PDFTestResult.OK)
{
IsOK = false;
}
}
if (IsOK == false)
{
return string.Empty;
}
CreateTargetPDF(targetFile.FileName);
// Binding source files
for (int i = 0; i < sourceFiles.Count; i++)
{
AddFile((string)sourceFiles[i].FileName);
progress.Value++;
}
return targetFile.FileName;
}));
}
catch (Exception exp)
{
throw exp;
}
}
/// <summary>
/// 获取office文档内容
/// </summary>
/// <param name="file"></param>
/// <returns></returns>
private static string _GetContent(IOfficeFile file)
{
if (file is IWordFile)
{
IWordFile wordFile = file as IWordFile;
return(wordFile.ParagraphText);
}
else if (file is IPowerPointFile)
{
IPowerPointFile pptFile = file as IPowerPointFile;
return(pptFile.AllText);
}
else if (file is ITextFile)
{
ITextFile textFile = file as ITextFile;
return(textFile.CommentText);
}
else if (file is IPDFFile)
{
IPDFFile pdfFile = file as IPDFFile;
return(pdfFile.CommentText);
}
else if (file is IHtmlFile)
{
IHtmlFile htmlFile = file as IHtmlFile;
return(htmlFile.CommentText);
}
else if (file is IExcelFile)
{
IExcelFile excelFile = file as IExcelFile;
return(excelFile.CommentText);
}
else
{
return(String.Format("无法解析"));
}
}