Size of SVGCanvas

[Doss Markus <Ma...@rhein-zeitung.net>]

Hi
 
While trying to read the size of the SVGCanvas with
getSVGDocumentSize().getWidth() there's a null pointer exception. I trying
to put the canvas into a window.
The code:
        File f = new File("t1.svg");
        svgCanvas2.setURI(f.toURL().toString());
        win = new JWindow();
        final JPanel pop = new JPanel();
        win.setLocation(800,100);
        System.out.println(svgCanvas2.getSVGDocumentSize().getWidth());
        pop.add(svgCanvas);
        win.getContentPane().add(pop);
        win.setVisible(true);
 
The code is taken from the Batik SVGCanvas Tutorial and modified with
JWindow instead of JFrame. What's wrong while retrieving the svg size ? Are
there 
Other possibilities to get the size. If I use the example code with JWindow
I also get a frame around the window. How do I get rid of it.
 
Thanks 
Markus

Re: Size of SVGCanvas

["M. van Veen" <mi...@microweb.nl>]

Hi!

That's right, you first have to wait untill the whole document has been made 
(otherwise there's no way to determine the document size). This can be done 
by adding a GVTTreeBuilderListener to the canvas. In the
gvtBuildCompleted(GVTTreeBuilderEvent e) function print the size (view the 
API for more details)

Good luck!

Michael.

On Thursday 20 June 2002 13:39, you 
wrote:
> Hi
>
> While trying to read the size of the SVGCanvas with
> getSVGDocumentSize().getWidth() there's a null pointer exception. I trying
> to put the canvas into a window.
> The code:
>         File f = new File("t1.svg");
>         svgCanvas2.setURI(f.toURL().toString());
>         win = new JWindow();
>         final JPanel pop = new JPanel();
>         win.setLocation(800,100);
>         System.out.println(svgCanvas2.getSVGDocumentSize().getWidth());
>         pop.add(svgCanvas);
>         win.getContentPane().add(pop);
>         win.setVisible(true);
>
> The code is taken from the Batik SVGCanvas Tutorial and modified with
> JWindow instead of JFrame. What's wrong while retrieving the svg size ? Are
> there
> Other possibilities to get the size. If I use the example code with JWindow
> I also get a frame around the window. How do I get rid of it.
>
> Thanks
> Markus


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