org.apache.fop.render.ps

Class ResourceHandler

java.lang.Object

org.apache.fop.render.ps.ResourceHandler

All Implemented Interfaces:

PSSupportedFlavors, org.apache.xmlgraphics.ps.dsc.DSCParserConstants

public class ResourceHandler
extends Object
implements org.apache.xmlgraphics.ps.dsc.DSCParserConstants, PSSupportedFlavors

This class is used when two-pass production is used to generate the PostScript file (setting "optimize-resources"). It uses the DSC parser from XML Graphics Commons to go over the temporary file generated by the PSRenderer and adds all used fonts and images as resources to the PostScript file.

Field Summary

Fields inherited from interface org.apache.xmlgraphics.ps.dsc.DSCParserConstants

COMMENT, DSC_COMMENT, EOF, HEADER_COMMENT, LINE

Fields inherited from interface org.apache.fop.render.ps.PSSupportedFlavors

LEVEL_2_FLAVORS_FORM, LEVEL_2_FLAVORS_INLINE, LEVEL_3_FLAVORS_FORM, LEVEL_3_FLAVORS_INLINE

Constructor Summary

Constructors

Constructor and Description
ResourceHandler(FOUserAgent userAgent, PSEventProducer eventProducer, FontInfo fontInfo, org.apache.xmlgraphics.ps.dsc.ResourceTracker resTracker, Map formResources) Main constructor.

Method Summary

Methods

Modifier and Type	Method and Description
void	process(InputStream in, OutputStream out, int pageCount, Rectangle2D documentBoundingBox, PSRenderingUtil psUtil) Rewrites the temporary PostScript file generated by PSRenderer adding all needed resources (fonts and images).

Methods inherited from class java.lang.Object

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

Constructor Detail

ResourceHandler

public ResourceHandler(FOUserAgent userAgent,
               PSEventProducer eventProducer,
               FontInfo fontInfo,
               org.apache.xmlgraphics.ps.dsc.ResourceTracker resTracker,
               Map formResources)

Main constructor.

Parameters:

userAgent - the FO user agent

eventProducer - the event producer

fontInfo - the font information

resTracker - the resource tracker to use

formResources - Contains all forms used by this document (maintained by PSRenderer)

Method Detail

process

public void process(InputStream in,
           OutputStream out,
           int pageCount,
           Rectangle2D documentBoundingBox,
           PSRenderingUtil psUtil)
             throws org.apache.xmlgraphics.ps.dsc.DSCException,
                    IOException

Rewrites the temporary PostScript file generated by PSRenderer adding all needed resources (fonts and images).

Parameters:

in - the InputStream for the temporary PostScript file

out - the OutputStream to write the finished file to

pageCount - the number of pages (given here because PSRenderer writes an "(atend)")

documentBoundingBox - the document's bounding box (given here because PSRenderer writes an "(atend)")

psUtil -

Throws:

org.apache.xmlgraphics.ps.dsc.DSCException - If there's an error in the DSC structure of the PS file

IOException - In case of an I/O error