public void Close()
{
if (_formatHandler != null)
{
_formatHandler = null;
}
if (_interpreter != null)
{
_interpreter.Dispose();
_interpreter = null;
}
}
protected virtual void Dispose(bool disposing)
{
if (!_disposed)
{
if (disposing)
{
if (_formatHandler != null)
{
_formatHandler.Dispose();
_formatHandler = null;
}
if (_interpreter != null)
{
_interpreter.Dispose();
_interpreter = null;
}
}
_disposed = true;
}
}
public GhostscriptViewerStdIOHandler(GhostscriptViewer viewer, GhostscriptViewerFormatHandler formatHandler) : base(true, true, true)
{
_viewer = viewer;
_formatHandler = formatHandler;
}
public GhostscriptViewerStdIOHandler(GhostscriptViewer viewer, GhostscriptViewerFormatHandler formatHandler) : base(true, true, true)
{
_viewer = viewer;
_formatHandler = formatHandler;
}
private void Open()
{
string extension = Path.GetExtension(_filePath).ToLower();
if (!string.IsNullOrWhiteSpace(_filePath) && string.IsNullOrWhiteSpace(extension))
{
using (FileStream srm = new FileStream(_filePath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{
extension = StreamHelper.GetStreamExtension(srm);
}
}
switch (extension)
{
case ".pdf":
{
_formatHandler = new GhostscriptViewerPdfFormatHandler(this);
break;
}
case ".ps":
{
_formatHandler = new GhostscriptViewerPsFormatHandler(this);
break;
}
case ".eps":
{
_formatHandler = new GhostscriptViewerEpsFormatHandler(this);
break;
}
default:
{
_formatHandler = new GhostscriptViewerDefaultFormatHandler(this);
break;
}
}
_interpreter.Setup(new GhostscriptViewerStdIOHandler(this, _formatHandler), new GhostscriptViewerDisplayHandler(this));
List <string> args = new List <string>();
args.Add("-gsnet");
args.Add("-sDEVICE=display");
if (Environment.Is64BitProcess)
{
args.Add("-sDisplayHandle=0");
}
else
{
args.Add("-dDisplayHandle=0");
}
args.Add("-dDisplayFormat=" +
((int)DISPLAY_FORMAT_COLOR.DISPLAY_COLORS_RGB |
(int)DISPLAY_FORMAT_ALPHA.DISPLAY_ALPHA_NONE |
(int)DISPLAY_FORMAT_DEPTH.DISPLAY_DEPTH_8 |
(int)DISPLAY_FORMAT_ENDIAN.DISPLAY_LITTLEENDIAN |
(int)DISPLAY_FORMAT_FIRSTROW.DISPLAY_BOTTOMFIRST).ToString());
args.Add("-dDOINTERPOLATE");
// fixes bug: http://bugs.ghostscript.com/show_bug.cgi?id=695180
if (_interpreter.LibraryRevision > 910)
{
args.Add("-dMaxBitmap=1g");
}
_interpreter.InitArgs(args.ToArray());
_formatHandler.Initialize();
_formatHandler.Open(_filePath);
if (_showPageAfterOpen)
{
this.ShowPage(_formatHandler.FirstPageNumber, true);
}
}
private void Open()
{
string extension = Path.GetExtension(_filePath).ToLower();
switch (extension)
{
case ".pdf":
{
_formatHandler = new GhostscriptViewerPdfFormatHandler(this);
break;
}
case ".ps":
{
_formatHandler = new GhostscriptViewerPsFormatHandler(this);
break;
}
default:
{
_formatHandler = new GhostscriptViewerDefaultFormatHandler(this);
break;
}
}
_interpreter.Setup(new GhostscriptViewerStdIOHandler(this, _formatHandler), new GhostscriptViewerDisplayHandler(this));
List <string> args = new List <string>();
args.Add("GSNET");
args.Add("-sDEVICE=display");
if (Environment.Is64BitProcess)
{
args.Add("-sDisplayHandle=0");
}
else
{
args.Add("-dDisplayHandle=0");
}
args.Add("-dDisplayFormat=" +
((int)DISPLAY_FORMAT_COLOR.DISPLAY_COLORS_RGB |
(int)DISPLAY_FORMAT_ALPHA.DISPLAY_ALPHA_NONE |
(int)DISPLAY_FORMAT_DEPTH.DISPLAY_DEPTH_8 |
(int)DISPLAY_FORMAT_ENDIAN.DISPLAY_LITTLEENDIAN |
(int)DISPLAY_FORMAT_FIRSTROW.DISPLAY_BOTTOMFIRST).ToString());
//args.Add("-dNOINTERPOLATE");
//args.Add("-dCOLORSCREEN=0");
//args.Add("-dAlignToPixels=0");
args.Add("-dDOINTERPOLATE");
args.Add("-dTextAlphaBits=4");
args.Add("-dGraphicAlphaBits=4");
//args.Add("-dGridFitTT=0");
//args.Add("-dHaveTrueTypes=true");
_interpreter.InitArgs(args.ToArray());
_formatHandler.Initialize();
_formatHandler.Open(_filePath);
this.ShowPage(_formatHandler.FirstPageNumber, true);
}
public void Close()
{
if (_formatHandler != null)
{
_formatHandler = null;
}
if (_interpreter != null)
{
_interpreter.Dispose();
_interpreter = null;
}
}
private void Open()
{
string extension = Path.GetExtension(_filePath).ToLower();
if (!string.IsNullOrWhiteSpace(_filePath) && string.IsNullOrWhiteSpace(extension))
{
using (FileStream srm = new FileStream(_filePath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{
extension = StreamHelper.GetStreamExtension(srm);
}
}
switch (extension)
{
case ".pdf":
{
_formatHandler = new GhostscriptViewerPdfFormatHandler(this);
break;
}
case ".ps":
{
_formatHandler = new GhostscriptViewerPsFormatHandler(this);
break;
}
case ".eps":
{
_formatHandler = new GhostscriptViewerEpsFormatHandler(this);
break;
}
default:
{
_formatHandler = new GhostscriptViewerDefaultFormatHandler(this);
break;
}
}
_interpreter.Setup(new GhostscriptViewerStdIOHandler(this, _formatHandler), new GhostscriptViewerDisplayHandler(this));
List<string> args = new List<string>();
args.Add("-gsnet");
args.Add("-sDEVICE=display");
if (Environment.Is64BitProcess)
{
args.Add("-sDisplayHandle=0");
}
else
{
args.Add("-dDisplayHandle=0");
}
args.Add("-dDisplayFormat=" +
((int)DISPLAY_FORMAT_COLOR.DISPLAY_COLORS_RGB |
(int)DISPLAY_FORMAT_ALPHA.DISPLAY_ALPHA_NONE |
(int)DISPLAY_FORMAT_DEPTH.DISPLAY_DEPTH_8 |
(int)DISPLAY_FORMAT_ENDIAN.DISPLAY_LITTLEENDIAN |
(int)DISPLAY_FORMAT_FIRSTROW.DISPLAY_BOTTOMFIRST).ToString());
args.Add("-dDOINTERPOLATE");
args.Add("-dGridFitTT=0");
// fixes bug: http://bugs.ghostscript.com/show_bug.cgi?id=695180
if (_interpreter.LibraryRevision > 910)
{
args.Add("-dMaxBitmap=1g");
}
foreach(string customSwitch in _customSwitches)
{
args.Add(customSwitch);
}
_interpreter.InitArgs(args.ToArray());
_formatHandler.Initialize();
_formatHandler.Open(_filePath);
if (_showPageAfterOpen)
{
this.ShowPage(_formatHandler.FirstPageNumber, true);
}
}
protected virtual void Dispose(bool disposing)
{
if (!_disposed)
{
if (disposing)
{
if (_formatHandler != null)
{
_formatHandler.Dispose();
_formatHandler = null;
}
if (_interpreter != null)
{
_interpreter.Dispose();
_interpreter = null;
}
}
_fileCleanupHelper.Cleanup();
_disposed = true;
}
}
private void Open()
{
string extension = "";
if (!String.IsNullOrEmpty(_filePath))
{
extension = Path.GetExtension(_filePath).ToLower();
if (!string.IsNullOrWhiteSpace(_filePath) && string.IsNullOrWhiteSpace(extension))
{
using (FileStream srm = new FileStream(_filePath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{
extension = StreamHelper.GetStreamExtension(srm);
}
}
}
switch (extension)
{
case ".pdf":
{
_formatHandler = new GhostscriptViewerPdfFormatHandler(this);
break;
}
case ".ps":
{
_formatHandler = new GhostscriptViewerPsFormatHandler(this);
break;
}
case ".eps":
{
_formatHandler = new GhostscriptViewerEpsFormatHandler(this);
break;
}
default:
{
_formatHandler = new GhostscriptViewerDefaultFormatHandler(this);
break;
}
}
GhostscriptStdIO _stdIOhandler = new GhostscriptViewerStdIOHandler(this, _formatHandler);
_interpreter.Setup(_stdIOhandler, new GhostscriptViewerDisplayHandler(this));
List <string> args = new List <string>();
//args.Add("-gsnet");
args.Add("-sDEVICE=display");
if (Environment.Is64BitProcess)
{
args.Add("-sDisplayHandle=0");
}
else
{
args.Add("-dDisplayHandle=0");
}
args.Add("-dDisplayFormat=" +
((int)DISPLAY_FORMAT_COLOR.DISPLAY_COLORS_RGB |
(int)DISPLAY_FORMAT_ALPHA.DISPLAY_ALPHA_NONE |
(int)DISPLAY_FORMAT_DEPTH.DISPLAY_DEPTH_8 |
(int)DISPLAY_FORMAT_ENDIAN.DISPLAY_LITTLEENDIAN |
(int)DISPLAY_FORMAT_FIRSTROW.DISPLAY_BOTTOMFIRST).ToString());
args.Add("-dInterpolateControl=1");
args.Add("-dTextAlphaBits=4");
args.Add("-dGraphicsAlphaBits=4");
args.Add("-dGridFitTT=2"); // was 0, but use font hinting; https://www.ghostscript.com/doc/9.52/Language.htm#GridFitTT
if (!String.IsNullOrEmpty(_filePath))
{
string basedir = Path.GetDirectoryName(_filePath).Replace("\\", "/");
#if false // somehow the --permit-file-XXX commandline parameters are not picked up all the time, while -I work better :-S
args.Add($"--permit-file-all={ basedir }");
#else
args.Add($"-I{ basedir }");
#endif
}
// fixes bug: http://bugs.ghostscript.com/show_bug.cgi?id=695180
if (_interpreter.LibraryRevision > 910 && _interpreter.LibraryRevision <= 921)
{
args.Add("-dMaxBitmap=1g");
}
else
{
// assume a 4K screen+50%
args.Add($"-dMaxBitmap={ (int)(4096 * 2160 * 4 * 1.5) }");
}
foreach (string customSwitch in _customSwitches)
{
args.Add(customSwitch);
}
_interpreter.InitArgs(args.ToArray());
_formatHandler.Initialize();
_formatHandler.Open(_filePath);
if (_showPageAfterOpen)
{
this.ShowPage(_formatHandler.FirstPageNumber, true);
}
}
private void Open()
{
string extension = Path.GetExtension(_filePath).ToLower();
switch (extension)
{
case ".pdf":
{
_formatHandler = new GhostscriptViewerPdfFormatHandler(this);
break;
}
case ".ps":
{
_formatHandler = new GhostscriptViewerPsFormatHandler(this);
break;
}
case ".eps":
{
_formatHandler = new GhostscriptViewerEpsFormatHandler(this);
break;
}
default:
{
_formatHandler = new GhostscriptViewerDefaultFormatHandler(this);
break;
}
}
_interpreter.Setup(new GhostscriptViewerStdIOHandler(this, _formatHandler), new GhostscriptViewerDisplayHandler(this));
List<string> args = new List<string>();
args.Add("-gsnet");
args.Add("-sDEVICE=display");
if (Environment.Is64BitProcess)
{
args.Add("-sDisplayHandle=0");
}
else
{
args.Add("-dDisplayHandle=0");
}
args.Add("-dDisplayFormat=" +
((int)DISPLAY_FORMAT_COLOR.DISPLAY_COLORS_RGB |
(int)DISPLAY_FORMAT_ALPHA.DISPLAY_ALPHA_NONE |
(int)DISPLAY_FORMAT_DEPTH.DISPLAY_DEPTH_8 |
(int)DISPLAY_FORMAT_ENDIAN.DISPLAY_LITTLEENDIAN |
(int)DISPLAY_FORMAT_FIRSTROW.DISPLAY_BOTTOMFIRST).ToString());
args.Add("-dDOINTERPOLATE");
//args.Add("-dDELAYBIND");
//args.Add("-dWRITESYSTEMDICT");
//args.Add("-q");
//args.Add("-dFIXEDMEDIA");
//args.Add("-sDEFAULTPAPERSIZE=a3");
//args.Add("-dDEVICEWIDTHPOINTS=2000");
//args.Add("-dDEVICEHEIGHTPOINTS=2000");
_interpreter.InitArgs(args.ToArray());
_formatHandler.Initialize();
_formatHandler.Open(_filePath);
if (_showPageAfterOpen)
{
this.ShowPage(_formatHandler.FirstPageNumber, true);
}
}