Hello,
I was able to get Batik to generate an SVG text output using the following
algorithm (from the Batik website) on java components such as a JPanel ( the
this instance is of JPanel).
try
{
DOMImplementation domImpl =
GenericDOMImplementation.getDOMImplementation();
// Create an instance of org.w3c.dom.Document
Document document = domImpl.createDocument(null, "svg", null);
// Create an instance of the SVG Generator
SVGGraphics2D svgGenerator = new SVGGraphics2D(document);
// Ask the test to render into the SVG Graphics2D implementation
this.paint(svgGenerator);
// Finally, stream out SVG to the standard output using UTF-8
// character to byte encoding
boolean useCSS = true; // we want to use CSS style attribute
Writer out = new OutputStreamWriter(System.out, "UTF-8");
svgGenerator.stream(out, useCSS);
}
catch (java.io.UnsupportedEncodingException e)
{
e.printStackTrace();
}
catch (org.apache.batik.svggen.SVGGraphics2DIOException
eSVGGraphics2DIOException)
{
eSVGGraphics2DIOException.printStackTrace();
}
However when I apply the same algorithm (the this instance is of
MY_JLAYEREDPANE, which extends JLayeredPane) to a JLayeredPane I get the
following exception:
java.lang.NullPointerException
at javax.swing.JLayeredPane.paint(JLayeredPane.java:539)
at MY.COM.MY_JLAYEREDPANE.paint(MY_JLAYEREDPANE.java:88)
at MY.COM.MY_JLAYEREDPANE.renderSVG2(MY_JLAYEREDPANE.java:126)
at MY.COM.MY_JLAYEREDPANE.paint(MY_JLAYEREDPANE.java:92)
at javax.swing.JComponent.paintChildren(JComponent.java:493)
at javax.swing.JComponent.paint(JComponent.java:691)
at javax.swing.JViewport.paint(JViewport.java:663)
at javax.swing.JComponent.paintChildren(JComponent.java:493)
at javax.swing.JComponent.paint(JComponent.java:691)
at javax.swing.JComponent.paintChildren(JComponent.java:493)
at javax.swing.JComponent.paint(JComponent.java:691)
at javax.swing.JComponent.paintChildren(JComponent.java:493)
at javax.swing.JComponent.paint(JComponent.java:691)
at javax.swing.JLayeredPane.paint(JLayeredPane.java:541)
at javax.swing.JComponent.paintChildren(JComponent.java:493)
at javax.swing.JComponent.paint(JComponent.java:664)
at java.awt.GraphicsCallback$PaintCallback.run(GraphicsCallback.java:18)
at
sun.awt.SunGraphicsCallback.runOneComponent(SunGraphicsCallback.java:49)
at
sun.awt.SunGraphicsCallback.runComponents(SunGraphicsCallback.java:86)
at java.awt.Container.paint(Container.java:955)
at sun.awt.RepaintArea.paint(RepaintArea.java:293)
at sun.awt.windows.WComponentPeer.handleEvent(WComponentPeer.java:191)
at java.awt.Component.dispatchEventImpl(Component.java:2658)
at java.awt.Container.dispatchEventImpl(Container.java:1208)
at java.awt.Window.dispatchEventImpl(Window.java:923)
at java.awt.Component.dispatchEvent(Component.java:2492)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:334)
at
java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:126)
at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:88)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:80)
I've searched Google with no success. and the mailing list websites referenced
from the batik is unsearchable. If you could reply directly to me that would be
great.
I'm using Windows XP Pro on JDK 1.3.1.11.
Thanks...Jim
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