xmlgraphics-commons 1.2

org.apache.xmlgraphics.ps.dsc
Class DefaultDSCHandler

java.lang.Object
  extended by org.apache.xmlgraphics.ps.dsc.DefaultDSCHandler
All Implemented Interfaces:
DSCHandler

public class DefaultDSCHandler
extends java.lang.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
protected  PSGenerator gen
           
protected  java.io.OutputStream out
           
 
Constructor Summary
DefaultDSCHandler(java.io.OutputStream out)
          Creates a new instance.
 
Method Summary
 void comment(java.lang.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(java.lang.String line)
          Called for a normal line of PostScript code.
 void startDocument(java.lang.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 java.io.OutputStream out

gen

protected PSGenerator gen
Constructor Detail

DefaultDSCHandler

public DefaultDSCHandler(java.io.OutputStream out)
Creates a new instance.

Parameters:
out - OutputStream to pipe all received events to
Method Detail

startDocument

public void startDocument(java.lang.String header)
                   throws java.io.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:
java.io.IOException - In case of an I/O error
See Also:
DSCHandler.startDocument(java.lang.String)

endDocument

public void endDocument()
                 throws java.io.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:
java.io.IOException - In case of an I/O error
See Also:
DSCHandler.endDocument()

handleDSCComment

public void handleDSCComment(DSCComment comment)
                      throws java.io.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:
java.io.IOException - In case of an I/O error
See Also:
DSCHandler.handleDSCComment( org.apache.xmlgraphics.ps.dsc.events.DSCComment)

line

public void line(java.lang.String line)
          throws java.io.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:
java.io.IOException - In case of an I/O error
See Also:
DSCHandler.line(java.lang.String)

comment

public void comment(java.lang.String comment)
             throws java.io.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:
java.io.IOException - In case of an I/O error
See Also:
DSCHandler.comment(java.lang.String)

xmlgraphics-commons 1.2

Copyright 1999-2007 The Apache Software Foundation. All Rights Reserved.