PlexMode GetPlexMode(byte[] initialBytes)
{
string ascii = Encoding.ASCII.GetString(initialBytes, DUPLEX_SETTING_OFFSET, DUPLEX_SETTING_STRING.Length);
PlexMode plexMode = (String.Equals(DUPLEX_SETTING_STRING, ascii, StringComparison.Ordinal))
? PlexMode.Duplex
: PlexMode.Simplex;
return(plexMode);
}
public void Print(string psFilePath, string outputPrinter, PlexMode plexMode)
{
if (psFilePath == null)
{
throw new ArgumentNullException("psFilePath");
}
if (outputPrinter == null)
{
throw new ArgumentNullException("printerName");
}
string setupFilePath = null;
try // try/finally block for setup file
{
setupFilePath = this.writeSetupFile(outputPrinter, plexMode);
var args = this.createArgs(psFilePath, outputPrinter, setupFilePath);
var hInstance = IntPtr.Zero;
try // try/finally block for GhostScript handle
{
int errorCode = NativeMethods.gsapi_new_instance(ref hInstance, IntPtr.Zero);
if (errorCode < 0)
{
throw new Exception(String.Format("gsapi_new_instance returned error code {0}", errorCode));
}
errorCode = NativeMethods.gsapi_init_with_args(hInstance, args.Length, args);
if (errorCode < 0)
{
throw new Exception(String.Format("gsapi_init_with_args returned error code {0}", errorCode));
}
NativeMethods.gsapi_exit(hInstance);
this.logger.Invoke("GhostScript completed processing successfully");
}
finally
{
if (hInstance != null)
{
NativeMethods.gsapi_delete_instance(hInstance);
}
}
}
finally
{
if (setupFilePath != null)
{
File.Delete(setupFilePath);
this.logger.Invoke("Deleted job setup file");
}
}
}
public void Print(string psFilePath, string outputPrinter, PlexMode plexMode)
{
if (psFilePath == null)
{
throw new ArgumentNullException("psFilePath");
}
if (outputPrinter == null)
{
throw new ArgumentNullException("printerName");
}
string setupFilePath = null;
try // try/finally block for setup file
{
setupFilePath = this.writeSetupFile(outputPrinter, plexMode);
var args = this.createArgs(psFilePath, outputPrinter, setupFilePath);
var hInstance = IntPtr.Zero;
try // try/finally block for GhostScript handle
{
int errorCode = NativeMethods.gsapi_new_instance(ref hInstance, IntPtr.Zero);
if (errorCode < 0)
{
throw new Exception(String.Format("gsapi_new_instance returned error code {0}", errorCode));
}
errorCode = NativeMethods.gsapi_init_with_args(hInstance, args.Length, args);
if (errorCode < 0)
{
throw new Exception(String.Format("gsapi_init_with_args returned error code {0}", errorCode));
}
NativeMethods.gsapi_exit(hInstance);
this.logger.Invoke("GhostScript completed processing successfully");
}
finally
{
if (hInstance != null)
{
NativeMethods.gsapi_delete_instance(hInstance);
}
}
}
finally
{
if (setupFilePath != null)
{
File.Delete(setupFilePath);
this.logger.Invoke("Deleted job setup file");
}
}
}
private string writeSetupFile(string outputPrinter, PlexMode plexMode)
{
if (outputPrinter == null)
{
throw new ArgumentNullException("printerName");
}
string fileContent = Encoding.UTF8.GetString(Properties.Resources.setupPostScript);
fileContent = fileContent.Replace(PostScriptPrinter.OUTPUT_PRINTER_TOKEN, outputPrinter);
fileContent = fileContent.Replace(PostScriptPrinter.OUTPUT_PLEX_MODE_TOKEN, plexMode == PlexMode.Duplex ? "true" : "false");
string path = Path.GetTempFileName();
File.WriteAllText(path, fileContent);
this.logger.Invoke(String.Format("Wrote job setup file to \"{0}\"", path));
return(path);
}
public PrintJobProperties GetProperties()
{
byte[] initialBytes = new byte[SEARCH_SIZE];
using (var stream = File.OpenRead(pclFilePath))
{
int totalRead = 0;
do
{
int read = stream.Read(initialBytes, totalRead, initialBytes.Length - totalRead);
if (read < 1)
{
throw new EndOfStreamException("PCL file is too small, cannot read job properties");
}
totalRead += read;
} while (totalRead < SEARCH_SIZE);
}
PlexMode plexMode = this.GetPlexMode(initialBytes);
ColorMode colorMode = this.GetColorMode(initialBytes);
return(new PrintJobProperties(colorMode, plexMode));
}
private string writeSetupFile(string outputPrinter, PlexMode plexMode)
{
if (outputPrinter == null)
{
throw new ArgumentNullException("printerName");
}
string fileContent = Encoding.UTF8.GetString(Properties.Resources.setupPostScript);
fileContent = fileContent.Replace(PostScriptPrinter.OUTPUT_PRINTER_TOKEN, outputPrinter);
fileContent = fileContent.Replace(PostScriptPrinter.OUTPUT_PLEX_MODE_TOKEN, plexMode == PlexMode.Duplex ? "true" : "false");
string path = Path.GetTempFileName();
File.WriteAllText(path, fileContent);
this.logger.Invoke(String.Format("Wrote job setup file to \"{0}\"", path));
return path;
}
public PrintJobProperties(ColorMode colorMode, PlexMode plexMode)
{
this.ColorMode = colorMode;
this.PlexMode = plexMode;
}
public PrintJobProperties(ColorMode colorMode, PlexMode plexMode)
{
this.ColorMode = colorMode;
this.PlexMode = plexMode;
}
