I think I'm seeing a bug when I create a simple shape and drag it with the mouse. If the stroke width is set to 2, it leaves turds behind as it's moving. If I change the stroke width to something higher or lower than 2, it works OK.

Sample code:

package scenegraph;

import java.awt.*; import java.awt.event.*; import java.awt.geom.*;

import javax.swing.*;

import com.sun.scenario.animation.Clip; import com.sun.scenario.scenegraph.*; import com.sun.scenario.scenegraph.SGAbstractShape.Mode; import com.sun.scenario.scenegraph.event.SGMouseListener;

public class test1 extends JFrame implements SGMouseListener { private static final long serialVersionUID = 1L;

private Point save;

public test1() { super("SG Test"); Panel p0 = new Panel(new BorderLayout()); JButton b = new JButton("DOIT"); p0.add(b, BorderLayout.NORTH); final JSGPanel p = new JSGPanel(); p.setBackground(Color.white); final SGGroup g = new SGGroup(); SGShape s = new SGShape(); final Rectangle2D r = new Rectangle2D.Double(0, 0, 100, 100); s.setShape(r); s.setAntialiasingHint(RenderingHints.VALUE_ANTIALIAS_ON); s.setDrawPaint(Color.blue); s.setDrawStroke(new BasicStroke(2f)); s.setFillPaint(Color.red); s.setMode(Mode.STROKE_FILL); final Ellipse2D e = new Ellipse2D.Double(0, 0, 100, 100); SGShape s2 = new SGShape(); s2.setShape(e); s2.setAntialiasingHint(RenderingHints.VALUE_ANTIALIAS_ON); s2.setDrawPaint(Color.green); s2.setDrawStroke(new BasicStroke(2f)); s2.setFillPaint(Color.blue); s2.setMode(Mode.STROKE_FILL); final SGComposite c2 = new SGComposite(); c2.setOpacity(1f); SGTransform t = SGTransform.createTranslation(0, 0, s); t.addMouseListener(this); c2.setChild(t); final SGComposite c1 = new SGComposite(); c1.setOpacity(1f); SGTransform t2 = SGTransform.createTranslation(0, 0, s2); t2.addMouseListener(this); c1.setChild(t2); g.add(c2); g.add(c1); p.setScene(g); JScrollPane sp = new JScrollPane(p); p0.add(sp, BorderLayout.CENTER); setContentPane(p0); pack(); setLocationRelativeTo(null); setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);

b.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { Clip.create(2000, c1, "opacity", 1f, 0.5f).start(); Clip.create(2000, c2, "opacity", 0.2f, 1f).start(); } }); }

public void mouseEntered(MouseEvent e, SGNode node) { }

public void mouseExited(MouseEvent e, SGNode node) { }

public void mouseMoved(MouseEvent e, SGNode node) { }

public void mouseReleased(MouseEvent e, SGNode node) { }

public void mouseWheelMoved(MouseWheelEvent e, SGNode node) { }

public void mouseClicked(MouseEvent e, SGNode node) { // node.getParent().remove(node); // g.add(node); }

public void mouseDragged(MouseEvent e, SGNode node) { if (node instanceof SGTransform.Translate) { SGTransform.Translate st = (SGTransform.Translate)node; st.translateBy(e.getX() - save.x, e.getY() - save.y); save = e.getPoint(); } }

public void mousePressed(MouseEvent e, SGNode node) { save = e.getPoint(); }

public static void main(String[] args) { test1 t1 = new test1(); t1.setVisible(true); } }