/// <summary>
/// 依據副檔名轉換成相對應的參數
/// </summary>
/// <param name="inputExtension"></param>
/// <param name="outputExtensionType"></param>
/// <returns></returns>
private static string ConvertExtensionToArg(string inputExtension, OutputExtensionType outputExtensionType)
{
switch (inputExtension)
{
case ".doc":
case ".docx":
case ".txt":
case ".rtf":
case ".html":
case ".htm":
case ".xml":
case ".odt":
case ".wps":
case ".wpd":
if (outputExtensionType == OutputExtensionType.pdf)
{
return("pdf:writer_pdf_Export");
}
else if (outputExtensionType == OutputExtensionType.odt)
{
return("odt:writer8");
}
return(null);
case ".xls":
case ".xlsx":
case ".xlsb":
case ".ods":
if (outputExtensionType == OutputExtensionType.pdf)
{
return("pdf:calc_pdf_Export");
}
else if (outputExtensionType == OutputExtensionType.ods)
{
return("ods:calc8");
}
return(null);
case ".ppt":
case ".pptx":
case ".odp":
if (outputExtensionType == OutputExtensionType.pdf)
{
return("pdf:impress_pdf_Export");
}
else if (outputExtensionType == OutputExtensionType.odp)
{
return("odp:impress8");
}
return(null);
default:
return(null);
}
}
public static string ConvertDocument(string inputFilePath, OutputExtensionType outputExtensionType)
{
// 副得副檔名對應的參數
string extensionParameter = ConvertExtensionToArg(Path.GetExtension(inputFilePath), outputExtensionType);
if (string.IsNullOrWhiteSpace(extensionParameter))
{
throw new InvalidProgramException("Unknown file type for LibreOffice. File = " + inputFilePath);
}
if (!File.Exists(inputFilePath))
{
throw new ArgumentException(string.Format("找不到檔案：{0}！", inputFilePath), nameof(inputFilePath));
}
string outputDir = Path.GetTempPath();
string outputFileName = Path.GetFileNameWithoutExtension(inputFilePath);
string outputPath = string.Empty;
ProcessStartInfo startInfo = new ProcessStartInfo();
startInfo.CreateNoWindow = false;
startInfo.UseShellExecute = false;
// 設定執行檔路徑
startInfo.FileName = CiConfig.Global.CiLibreOffice.BinPath;
startInfo.WorkingDirectory = outputDir;
startInfo.WindowStyle = ProcessWindowStyle.Hidden;
startInfo.Arguments = string.Format(" -headless -convert-to {1} {0}", inputFilePath, extensionParameter);
using (Process exeProcess = Process.Start(startInfo))
{
exeProcess.WaitForExit();
}
string[] ext = extensionParameter.Split(':');
outputPath = Path.Combine(outputDir, outputFileName + "." + ext[0]);
return(outputPath);
}
public OutputExtension()
{
_outputExtensionType = OutputExtensionType.ModelClass;
}
