org.apache.fop.render
Class AbstractGenericSVGHandler

java.lang.Object
  org.apache.fop.render.AbstractGenericSVGHandler

All Implemented Interfaces:

RendererContextConstants, XMLHandler

Direct Known Subclasses:

AFPSVGHandler, PCLSVGHandler, PDFSVGHandler

public abstract class AbstractGenericSVGHandler

extends java.lang.Object

implements XMLHandler, RendererContextConstants

Generic XML handler for SVG. Uses Apache Batik for SVG processing and simply paints to a Graphics2DAdapter and thus ultimatively to Graphics2D interface that is presented.

To use this class, subclass it and implement the missing methods (supportsRenderer, for example).

Field Summary

Fields inherited from interface org.apache.fop.render.XMLHandler

HANDLE_ALL

Fields inherited from interface org.apache.fop.render.RendererContextConstants

FOREIGN_ATTRIBUTES, HANDLER_CONFIGURATION, HEIGHT, OUTPUT_STREAM, PAGE_VIEWPORT, WIDTH, XPOS, YPOS

Constructor Summary

AbstractGenericSVGHandler()

Method Summary

java.lang.String	getNamespace()
void	handleXML(RendererContext context, org.w3c.dom.Document doc, java.lang.String ns) Handle an external xml document inside a Foreign Object Area.
protected void	renderSVGDocument(RendererContext context, org.w3c.dom.Document doc) Render the SVG document.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.fop.render.XMLHandler

supportsRenderer

Constructor Detail

AbstractGenericSVGHandler

public AbstractGenericSVGHandler()

Method Detail

handleXML

public void handleXML(RendererContext context,
                      org.w3c.dom.Document doc,
                      java.lang.String ns)
               throws java.lang.Exception

Description copied from interface: XMLHandler

Handle an external xml document inside a Foreign Object Area.

This may throw an exception if for some reason it cannot be handled. The caller is expected to deal with this exception.

The implementation may convert the XML document internally to another XML dialect (SVG, for example) and call renderXML() on the AbstractRenderer again (which can be retrieved through the RendererContext).

Specified by:

handleXML in interface XMLHandler

Parameters:

context - The RendererContext (contains the user agent)

doc - A DOM containing the foreign object to be processed

ns - The Namespace of the foreign object

Throws:

java.lang.Exception - If an error occurs during processing.

See Also:

XMLHandler

renderSVGDocument

protected void renderSVGDocument(RendererContext context,
                                 org.w3c.dom.Document doc)
                          throws java.io.IOException

Render the SVG document.

Parameters:

context - the renderer context

doc - the SVG document

Throws:

java.io.IOException - In case of an I/O error while painting the image

getNamespace

public java.lang.String getNamespace()

Specified by:

getNamespace in interface XMLHandler

Returns:

the XML namespace for the XML dialect this XMLHandler supports, null if all XML content is handled by this instance.

See Also:

XMLHandler.getNamespace()