Re: Trying to draw my overlay

[Lasse Riis]

Thomas DeWeese wrote:
You are close, basically you want to make your class implement
the Overlay interface from Batik, and associate your mapIt instance
with the canvas as an overlay
Well I guess I'm getting there, but I need more help. Perhaps a good 
restructure of my app is in order?

I got this now, and of course it still doesn't work. (I didn't quite 
understand James' ideas):

import java.awt.*;
import java.awt.Graphics2D;
import javax.swing.*;
import org.apache.batik.swing.JSVGCanvas;
import org.apache.batik.swing.gvt.GVTTreeRendererAdapter;
import org.apache.batik.swing.gvt.GVTTreeRendererEvent;
import org.apache.batik.swing.gvt.Overlay;
public class mapIt implements Overlay{
  
   public static void main(String[] args) {
       JFrame frame = buildGUI();
      
       frame.setSize(200, 600);
       frame.setVisible(true);
            
  }

  public static JSVGCanvas buildCanvas(){
      final JSVGCanvas canvas = new JSVGCanvas();
      canvas.setBackground(Color.green);
      canvas.setURI("file:/home/riis/P2/maps/gangen.svg");
      canvas.addGVTTreeRendererListener(new GVTTreeRendererAdapter() {
         public void gvtRenderingCompleted(GVTTreeRendererEvent e) {
                 System.out.print("Rendering done");
                 Graphics box = canvas.getGraphics();
                 paint(box);
          }
      });
      canvas.getOverlays().add(new mapIt());    
     
      return canvas;
  }
  
  public static JFrame buildGUI(){
          JFrame f = new JFrame("PANTS - MapIt");
         
          JSVGCanvas svgCanvas = buildCanvas();
     
          JSlider slider = new JSlider();
          
          JPanel panel = new JPanel(new BorderLayout());

          panel.add("North", slider);
          panel.add("Center", svgCanvas);
          f.getContentPane().add(panel);
       f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
       return f;
  }
  public static void paint(Graphics g) {
          g.setColor(java.awt.Color.RED);
          g.fillRect(10,10,100,100);
      }
 
}

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