public static string ConvertRtf2Html(StreamReader rtfStream)
{
// image converter
// convert all images to JPG
RtfVisualImageAdapter imageAdapter =
new RtfVisualImageAdapter(ImageFormat.Jpeg);
RtfImageConvertSettings imageConvertSettings =
new RtfImageConvertSettings(imageAdapter);
imageConvertSettings.ScaleImage = true; // scale images
RtfImageConverter imageConverter =
new RtfImageConverter(imageConvertSettings);
RtfParserListenerStructureBuilder structureBuilder = new RtfParserListenerStructureBuilder();
RtfParser parser = new RtfParser(structureBuilder);
IRtfGroup rtfStructure;
parser.IgnoreContentAfterRootGroup = true; // support WordPad documents
parser.Parse(new RtfSource(rtfStream));
rtfStructure = structureBuilder.StructureRoot;
// interpreter
IRtfDocument rtfDocument = InterpretRtf(rtfStructure);
// html converter
RtfHtmlConvertSettings htmlConvertSettings =
new RtfHtmlConvertSettings(imageAdapter);
htmlConvertSettings.StyleSheetLinks.Add("default.css");
RtfHtmlConverter htmlConverter = new RtfHtmlConverter(rtfDocument,
htmlConvertSettings);
return htmlConverter.Convert();
}
} // RtfImageConverter
// ----------------------------------------------------------------------
public RtfImageConverter( RtfImageConvertSettings settings )
{
if ( settings == null )
{
throw new ArgumentNullException( "settings" );
}
this.settings = settings;
} // RtfImageConverter
} // RtfImageConverter
// ----------------------------------------------------------------------
public RtfImageConverter(RtfImageConvertSettings settings)
{
if (settings == null)
{
throw new ArgumentNullException("settings");
}
this.settings = settings;
} // RtfImageConverter
} // RtfImageConverter
public RtfImageConverter(RtfImageConvertSettings settings)
{
if (settings == null)
{
throw new ArgumentNullException(nameof(settings));
}
Settings = settings;
} // RtfImageConverter
// ----------------------------------------------------------------------
private string InterpretRtf( IRtfGroup rtfStructure )
{
string text = null;
RtfInterpreterListenerFileLogger interpreterLogger = null;
try
{
// logger
if ( settings.LogInterpreter )
{
string logFileName = settings.BuildDestinationFileName(
settings.LogDirectory,
RtfInterpreterListenerFileLogger.DefaultLogFileExtension );
interpreterLogger = new RtfInterpreterListenerFileLogger( logFileName );
}
// text converter
RtfTextConverter textConverter = null;
if ( settings.SaveText )
{
RtfTextConvertSettings textConvertSettings = new RtfTextConvertSettings();
textConvertSettings.IsShowHiddenText = settings.ShowHiddenText;
textConverter = new RtfTextConverter( textConvertSettings );
}
// image converter
RtfImageConverter imageConverter = null;
if ( settings.SaveImage )
{
RtfVisualImageAdapter imageAdapter = new RtfVisualImageAdapter(
settings.ImageFileNamePattern,
settings.ImageFormat );
RtfImageConvertSettings imageConvertSettings = new RtfImageConvertSettings( imageAdapter );
imageConvertSettings.ImagesPath = settings.DestinationDirectory;
imageConvertSettings.ScaleImage = settings.ScaleImage;
imageConvertSettings.BackgroundColor = settings.ImageBackgroundColor;
if ( settings.ExtendedImageScale )
{
imageConvertSettings.ScaleExtension = 0.5f;
}
imageConverter = new RtfImageConverter( imageConvertSettings );
}
// rtf parser
// interpret the rtf structure using the extractors
RtfInterpreterTool.Interpret( rtfStructure, interpreterLogger, textConverter, imageConverter );
// get the resulting text
if ( textConverter != null )
{
text = textConverter.PlainText;
}
}
catch ( Exception e )
{
if ( interpreterLogger != null )
{
interpreterLogger.Dispose();
}
Console.WriteLine( "error while interpreting rtf: " + e.Message );
ExitCode = ProgramExitCode.InterpretRtf;
return null;
}
return text;
}
// ----------------------------------------------------------------------
private IRtfDocument InterpretRtf( IRtfGroup rtfStructure, IRtfVisualImageAdapter imageAdapter )
{
IRtfDocument rtfDocument;
RtfInterpreterListenerFileLogger interpreterLogger = null;
try
{
// logger
if ( settings.LogInterpreter )
{
string logFileName = settings.BuildDestinationFileName(
settings.LogDirectory,
RtfInterpreterListenerFileLogger.DefaultLogFileExtension );
interpreterLogger = new RtfInterpreterListenerFileLogger( logFileName );
}
// image converter
RtfImageConverter imageConverter = null;
if ( settings.SaveImage )
{
RtfImageConvertSettings imageConvertSettings = new RtfImageConvertSettings( imageAdapter );
imageConvertSettings.ImagesPath = settings.DestinationDirectory;
imageConvertSettings.BackgroundColor = settings.ImageBackgroundColor;
if ( settings.ExtendedImageScale )
{
imageConvertSettings.ScaleExtension = 0.5f;
}
imageConverter = new RtfImageConverter( imageConvertSettings );
}
// rtf parser
// interpret the rtf structure using the extractors
rtfDocument = RtfInterpreterTool.BuildDoc( rtfStructure, interpreterLogger, imageConverter );
}
catch ( Exception e )
{
if ( interpreterLogger != null )
{
interpreterLogger.Dispose();
}
Console.WriteLine( "error while interpreting rtf: " + e.Message );
ExitCode = ProgramExitCode.InterpretRtf;
return null;
}
return rtfDocument;
}
