/// <summary>
/// Returns an array of arguments to be sent to the Ghostscript API
/// </summary>
/// <param name="inputPath">Path to the source file</param>
/// <param name="outputPath">Path to the output file</param>
/// <param name="firstPage">The page of the file to start on</param>
/// <param name="lastPage">The page of the file to end on</param>
private static string[] GetArgs(string inputPath,
string outputPath,
int firstPage,
int lastPage,
int width,
int height)
{
// To maintain backwards compatibility, this method uses previous hardcoded values.
GhostscriptSettings s = new GhostscriptSettings();
s.Device = Settings.GhostscriptDevices.jpeg;
s.Page.Start = firstPage;
s.Page.End = lastPage;
s.Resolution = new System.Drawing.Size(width, height);
Settings.GhostscriptPageSize pageSize = new Settings.GhostscriptPageSize();
pageSize.Native = FPC_WPNuevaCorrespondencia.Settings.GhostscriptPageSizes.letter;
s.Size = pageSize;
return(GetArgs(inputPath, outputPath, s));
}
/// <summary>
/// Rasterises a PDF into selected format
/// </summary>
/// <param name="inputPath">PDF file to convert</param>
/// <param name="outputPath">Destination file</param>
/// <param name="settings">Conversion settings</param>
public static void GenerateOutput(string inputPath, string outputPath, GhostscriptSettings settings)
{
CallAPI(GetArgs(inputPath, outputPath, settings));
}
/// <summary>
/// Returns an array of arguments to be sent to the Ghostscript API
/// </summary>
/// <param name="inputPath">Path to the source file</param>
/// <param name="outputPath">Path to the output file</param>
/// <param name="settings">API parameters</param>
/// <returns>API arguments</returns>
private static string[] GetArgs(string inputPath,
string outputPath,
GhostscriptSettings settings)
{
System.Collections.ArrayList args = new System.Collections.ArrayList(ARGS);
if (settings.Device == Settings.GhostscriptDevices.UNDEFINED)
{
throw new ArgumentException("An output device must be defined for Ghostscript", "GhostscriptSettings.Device");
}
if (settings.Page.AllPages == false && (settings.Page.Start <= 0 && settings.Page.End < settings.Page.Start))
{
throw new ArgumentException("Pages to be printed must be defined.", "GhostscriptSettings.Pages");
}
if (settings.Resolution.IsEmpty)
{
throw new ArgumentException("An output resolution must be defined", "GhostscriptSettings.Resolution");
}
if (settings.Size.Native == Settings.GhostscriptPageSizes.UNDEFINED && settings.Size.Manual.IsEmpty)
{
throw new ArgumentException("Page size must be defined", "GhostscriptSettings.Size");
}
// Output device
args.Add(String.Format("-sDEVICE={0}", settings.Device));
// Pages to output
if (settings.Page.AllPages)
{
args.Add("-dFirstPage=1");
}
else
{
args.Add(String.Format("-dFirstPage={0}", settings.Page.Start));
if (settings.Page.End >= settings.Page.Start)
{
args.Add(String.Format("-dLastPage={0}", settings.Page.End));
}
}
// Page size
if (settings.Size.Native == Settings.GhostscriptPageSizes.UNDEFINED)
{
args.Add(String.Format("-dDEVICEWIDTHPOINTS={0}", settings.Size.Manual.Width));
args.Add(String.Format("-dDEVICEHEIGHTPOINTS={0}", settings.Size.Manual.Height));
}
else
{
args.Add(String.Format("-sPAPERSIZE={0}", settings.Size.Native.ToString()));
}
// Page resolution
args.Add(String.Format("-dDEVICEXRESOLUTION={0}", settings.Resolution.Width));
args.Add(String.Format("-dDEVICEYRESOLUTION={0}", settings.Resolution.Height));
// Files
args.Add(String.Format("-sOutputFile={0}", outputPath));
args.Add(inputPath);
return((string[])args.ToArray(typeof(string)));
}