/// <summary>
/// Prompt user to confirm whether an existing file shuld be overwritten.
/// </summary>
/// <param name="fileName">Name of file to overwrite.</param>
/// <param name="options">Convert options. MOdifies options.overwrite if user chooses Yes to All or No to All.</param>
/// <param name="cancel">Returns true if user cancels operation.</param>
/// <returns>true if file should be overwritten; otherwise false.</returns>
public static bool PromptToOverwrite(string fileName, ref ConvertOptions options, ref bool cancel)
{
do
{
Console.WriteLine($"\nWarning! '{fileName}' already exists.\n" +
"Do you want to continue and overwrite the existing file?\n" +
"Y = Yes, N = No, C = Cancel, A = Yes to All, O = No To All");
ConsoleKey key = Console.ReadKey().Key;
Console.WriteLine();
switch (key)
{
case ConsoleKey.C:
cancel = true;
return(false);
case ConsoleKey.N:
return(false);
case ConsoleKey.O:
options.overwrite = false;
return(false);
case ConsoleKey.Y:
return(true);
case ConsoleKey.A:
options.overwrite = true;
return(true);
}
} while (true);
}
/// <summary>
/// Convert the specified Tedds document file or all files in the specified directory to PDF.
/// </summary>
/// <param name="teddsApp">Tedds application object.</param>
/// <param name="filePath">Full path of Tedds document file or a directory of files to convert.</param>
/// <param name="options">Conversion options.</param>
/// <param name="cancel">Returns true if user cancels operation.</param>
public static void ConvertTedToPdf(IApplication teddsApp, string filePath, ref ConvertOptions options, ref bool cancel)
{
if (Directory.Exists(filePath))
{
DirectoryConvertTedToPdf(teddsApp, filePath, ref options, ref cancel);
}
else
{
FileConvertTedToPdf(teddsApp, filePath, ref options, ref cancel);
}
}
/// <summary>
/// Main program
/// </summary>
/// <param name="args">Command line arguments.</param>
static void Main(string[] args)
{
ConvertOptions options = new ConvertOptions();
List <string> filePaths = new List <string>();
if (args.Length == 0)
{
if (!PromptForUsage(filePaths, ref options))
{
return;
}
}
else if (!ProcessCommandLine(args, filePaths, ref options))
{
ShowUsage();
return;
}
IApplication teddsApp = null;
try
{
//Connect to Tedds application
teddsApp = new Application();
#if DEBUG
teddsApp.Visible = true;
#endif
}
catch (COMException e)
{
Console.WriteLine($"Error attempting to start or connect to the Tedds Application\n", e.StackTrace);
return;
}
bool cancel = false;
//Process all file paths
foreach (string filePath in filePaths)
{
ConvertTedToPdf(teddsApp, filePath, ref options, ref cancel);
if (cancel)
{
break;
}
}
//Explicitely release reference to COM object, if App is visible it will remain open; otherwise the process will exit
Marshal.ReleaseComObject(teddsApp);
}
/// <summary>
/// Prompt user to enter path of file or folder to convert and to confirm options.
/// </summary>
/// <param name="filePaths">Returns the list of file paths to be processed.</param>
/// <param name="options">Returns to options to use for the conversion process.</param>
/// <returns>true is user entered required parameters; otherwise false.</returns>
public static bool PromptForUsage(List <string> filePaths, ref ConvertOptions options)
{
//Source file
string filePath;
do
{
//File or directory
Console.WriteLine("Enter path of a Tedds document file or a directory to convert");
filePath = Console.ReadLine().Trim(FilePathTrimChars);
}while (!File.Exists(filePath) && !Directory.Exists(filePath));
filePaths.Add(filePath);
//Recursive
if (Directory.Exists(filePath))
{
do
{
Console.WriteLine("Do you want to convert all files in child directories?\n" +
"Y = Yes, N = No, ESC = Cancel");
ConsoleKey key = Console.ReadKey().Key;
Console.WriteLine();
switch (key)
{
case ConsoleKey.Y:
options.recursive = true;
return(true);
case ConsoleKey.N:
options.recursive = false;
return(true);
case ConsoleKey.Escape:
return(false);
default:
break;
}
}while (true);
}
return(true);
}
/// <summary>
/// Convert Tedds document file to PDF. Output file is created in the same location as the input file.
/// </summary>
/// <param name="teddsApp">Tedds application object.</param>
/// <param name="filePath">Full path of Tedds document file or a directory of files to convert.</param>
/// <param name="options">Conversion options.</param>
/// <param name="cancel">Returns true if user cancels operation.</param>
public static void FileConvertTedToPdf(IApplication teddsApp, string fileName, ref ConvertOptions options, ref bool cancel)
{
//Create output file in the same location as the input file but with the PDF file extension
string outputFileName = Path.ChangeExtension(fileName, FileExtension_Pdf);
//Verify whether output file already exists
if (File.Exists(outputFileName))
{
if (options.overwrite == false)
{
return;
}
if (options.overwrite != true && !PromptToOverwrite(outputFileName, ref options, ref cancel))
{
return;
}
}
bool closeDocument = false;
ITeddsDocument document = null;
ITeddsDocuments documents = null;
try
{
documents = teddsApp.Documents;
//Determine if file is already open
try { document = documents[fileName]; }
catch (COMException) { }
if (document == null)
{
document = documents.Open(fileName);
closeDocument = true;
}
if (document != null)
{
document.SaveAsPdf(outputFileName);
if (closeDocument)
{
document.Close();
//Closing the document explicitly destroys the object
//Do not try to release it at the end of this method
document = null;
}
}
Console.WriteLine($"Saved '{fileName}'\n as '{outputFileName}'");
}
catch (COMException e)
{
Console.WriteLine($"Error converting document '{fileName}'\n{e}");
}
finally
{
//Explicitely release references to COM objects
if (document != null)
{
Marshal.ReleaseComObject(document);
}
if (documents != null)
{
Marshal.ReleaseComObject(documents);
}
}
}
/// <summary>
/// Convert all Tedds documents in the specified directory to PDF. If the recursive option is enabled then all process all child directories.
/// </summary>
/// <param name="teddsApp">Tedds application object.</param>
/// <param name="filePath">Full path of Tedds document file or a directory of files to convert.</param>
/// <param name="options">Conversion options.</param>
/// <param name="cancel">Returns true if user cancels operation.</param>
public static void DirectoryConvertTedToPdf(IApplication teddsApp, string filePath, ref ConvertOptions options, ref bool cancel)
{
//Path must be a directory
Debug.Assert(Directory.Exists(filePath));
//Process all Tedds document files in specified directory
foreach (string file in Directory.GetFiles(filePath, $"*{FileExtension_TeddsDocument}", new EnumerationOptions {
RecurseSubdirectories = options.recursive
}))
{
FileConvertTedToPdf(teddsApp, file, ref options, ref cancel);
if (cancel)
{
return;
}
}
}
/// <summary>
/// Process the command line arguments to initialise the list of files and folders to process and the options to use.
/// </summary>
/// <param name="args">Command line arguments.</param>
/// <param name="filePaths">Returns the list of file paths to be processed.</param>
/// <param name="options">Returns to options to use for the conversion process.</param>
/// <returns>true if the command line arguments were processed and are valid; otherwise false.</returns>
public static bool ProcessCommandLine(string[] args, List <string> filePaths, ref ConvertOptions options)
{
//Process each argument
foreach (string arg in args)
{
//Support '-' or '/' formatted command line options
switch (arg.TrimStart("-/".ToCharArray()).ToUpper())
{
//Recursive
case "R":
options.recursive = true;
break;
//Overwrite existing files
case "O":
options.overwrite = true;
break;
//Drive, path, filename
default:
filePaths.Add(arg.Trim(FilePathTrimChars));
break;
}
}
return(filePaths.Count > 0);
}
