[BATIK-644] DefaultExtensionHandler derived class's handlePaint is not getting invoked

• Type: Bug
• Status: Open
• Resolution: Unresolved
• Affects Version/s: 1.6
• Component/s: SVGGraphics2D
• Environment: Operating System: other; Platform: Other
• Assignee: Batik Developer's Mailing list
• Reporter: Naresh J
• Created: 04/Jun/06 01:49
• Updated: 24/Sep/07 19:15

Description

I have following implementation to write out svg file. I have geometry with
LinearGradient fill attribute. When I render that to the SVG2DGraphics, the
handlePaint of the derived class is not getting invoked. Is this an known
issue or am I missing something in my code? The following code is based on the
example given in the svggen documentation.

try

{ String scSvgNsURI = "http://www.w3.org/2000/svg"; DOMImplementation zDomImpl = GenericDOMImplementation.getDOMImplementation(); Document zDocument = zDomImpl.createDocument(scSvgNsURI, "svg", null); SVGGeneratorContext zSvgCtx = SVGGeneratorContext.createDefault(zDocument); GenericImageHandler zImgHandler = new CachedImageHandlerBase64Encoder(); zSvgCtx.setGenericImageHandler(zImgHandler); zSvgCtx.setExtensionHandler(new SvgExtensionHandler()); SVGGraphics2D zSvgGraphics = new SVGGraphics2D(zSvgCtx, true); IDrawingSurface zDrawingSurface = super.getDrawingSurface(); zSvgGraphics.setRenderingHint( RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC); zSvgGraphics.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY); zSvgGraphics.setRenderingHint( RenderingHints.KEY_COLOR_RENDERING, RenderingHints.VALUE_COLOR_RENDER_QUALITY); // zSvgCtx.getGraphicContextDefaults().setRenderingHints( // zSvgGraphics.getRenderingHints()); // SVGHintsDescriptor zSvgHintsDesc = // SVGRenderingHints.toSVG( // zSvgGraphics.getRenderingHints()); // // - Following code renders all the geometry primitives to the given // graphics // zDrawingSurface.render( zSvgGraphics, super.getActiveGeomContainer() ); Writer zWriter = new OutputStreamWriter( new FileOutputStream(zFile), "UTF-8"); zSvgGraphics.stream(zWriter, false); }

catch( Exception zExcept )
{
}

/**

• Inner class to handle paint extensions.
  */
  private class SvgExtensionHandler extends DefaultExtensionHandler
  implements SVGConstants
  Unknown macro: { public SVGPaintDescriptor handlePaint( Paint zPaint, SVGGeneratorContext zContext ) { System.out.println( "HandlePaint called: " + zPaint.getClass().getName() ); } }