Package org.apache.xmlgraphics.ps.dsc

Class DefaultDSCHandler

java.lang.Object

org.apache.xmlgraphics.ps.dsc.DefaultDSCHandler

All Implemented Interfaces:

DSCHandler

public class DefaultDSCHandler
extends Object
implements DSCHandler

Default implementation of a DSCHandler which simply passes through the PostScript content unchanged. Subclasses can implement different behaviour, for example to filter certain DSC comments or to insert PostScript code at specific places.

Field Summary

Fields

Modifier and Type	Field	Description
protected PSGenerator	gen
protected OutputStream	out

Constructor Summary

Constructors

Constructor	Description
DefaultDSCHandler(OutputStream out)	Creates a new instance.

Method Summary

Modifier and Type	Method	Description
void	comment(String comment)	Called for any line containing a full-line PostScript comment.
void	endDocument()	Called when the PostScript file is fully processed, i.e.
void	handleDSCComment(DSCComment comment)	Called for each standard DSC comment.
void	line(String line)	Called for a normal line of PostScript code.
void	startDocument(String header)	Called as a new PostScript file starts.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

out

protected OutputStream out

gen

protected PSGenerator gen

Constructor Detail

DefaultDSCHandler

public DefaultDSCHandler(OutputStream out)

Creates a new instance.

Parameters:

out - OutputStream to pipe all received events to

Method Detail

startDocument

public void startDocument(String header)
                   throws IOException

Description copied from interface: DSCHandler

Called as a new PostScript file starts.

Specified by:

startDocument in interface DSCHandler

Parameters:

header - the first line of the DSC-compliant file

Throws:

IOException - In case of an I/O error

See Also:

DSCHandler.startDocument(java.lang.String)

endDocument

public void endDocument()
                 throws IOException

Description copied from interface: DSCHandler

Called when the PostScript file is fully processed, i.e. after the %%EOF comment.

Specified by:

endDocument in interface DSCHandler

Throws:

IOException - In case of an I/O error

See Also:

DSCHandler.endDocument()

handleDSCComment

public void handleDSCComment(DSCComment comment)
                      throws IOException

Description copied from interface: DSCHandler

Called for each standard DSC comment. The classes passed to this method may be simple DSCComment classes or special subclasses for some of the DSC comments.

Specified by:

handleDSCComment in interface DSCHandler

Parameters:

comment - the DSC comment

Throws:

IOException - In case of an I/O error

See Also:

DSCHandler.handleDSCComment( org.apache.xmlgraphics.ps.dsc.events.DSCComment)

line

public void line(String line)
          throws IOException

Description copied from interface: DSCHandler

Called for a normal line of PostScript code.

Specified by:

line in interface DSCHandler

Parameters:

line - the line of code

Throws:

IOException - In case of an I/O error

See Also:

DSCHandler.line(java.lang.String)

comment

public void comment(String comment)
             throws IOException

Description copied from interface: DSCHandler

Called for any line containing a full-line PostScript comment. This is also called for custom comments following the extension mechanism of the DSC specification.

Specified by:

comment in interface DSCHandler

Parameters:

comment - the comment line

Throws:

IOException - In case of an I/O error

See Also:

DSCHandler.comment(java.lang.String)