When running the following test program and draw shapes the overview will not update. Pressing the UPDATE-Button has not effect, too. Only after clicking on the overview component it will update with the current content of the diagram view.

Only if the "

overview.setDiagramView(diagramView); 

" statement is placed at the end of the constructor the overview is connected with the diagram view properly. But that's not helpful if your diagram view is handling more the one diagram.

So my questions are:

* What went wrong?

* What should be inside the actionPerformed() statement

Regards,
Jan

public class TestOverview extends JFrame {
	private static final long serialVersionUID = 1L;
	final DiagramView diagramView = new DiagramView();
	final Overview overview = new Overview();
	final Diagram diagram = new Diagram();;


	public TestOverview() {
		setSize(new Dimension(600, 400));
		JScrollPane scrollPane = new JScrollPane(diagramView);
		overview.setPreferredSize(new Dimension(200, 80));
		overview.setDiagramView(diagramView);
		diagramView.setDiagram(diagram);

		DiagramNode mainNode1 = diagram.getFactory().createShapeNode(10, 10, 20, 20);
		JButton btnUpdate = new JButton("UPDATE") {
			public void actionPerformed(ActionEvent e) {
				TestOverview.this.overview.repaint(); // no effect
				TestOverview.this.overview.validate();// no effect
				TestOverview.this.overview.update();// no effect
				TestOverview.this.overview.setDiagramView(null);        //
				TestOverview.this.overview.setDiagramView(diagramView); // no effect
				TestOverview.this.overview.doLayout();// no effect
				TestOverview.this.diagramView.repaint();// no effect

				TestOverview.this.diagramView.validate();// no effect
				TestOverview.this.diagram.repaint(); // no effect
				TestOverview.this.diagram.notifyAll(); // no effect

				TestOverview.this.overview.requestFocus(); // no effect
				TestOverview.this.overview.setFocusable(true); // no effect

				TestOverview.this.overview.setBackgroundColor(Color.white); // no effect
				TestOverview.this.overview.update();// no effect
			}
		};

		this.overview.setBackground(Color.WHITE);
		getContentPane().add(scrollPane, BorderLayout.CENTER);
		getContentPane().add(overview, BorderLayout.EAST);
		getContentPane().add(btnUpdate, BorderLayout.SOUTH);

		/***********************************************************************
		overview.setDiagramView(diagramView); ** this would work
 		***********************************************************************/
	}

	public static void main(String[] args) {
		TestOverview window = new TestOverview();
		window.setVisible(true);

	}

}
 

I am sorry, but can't see the relation between the com.mindfusion.diagramming.PrintPreview and com.mindfusion.diagramming.Overview class.

[quote]The Overview control provides a scaled-down view of Diagram contents and allows scrolling and zooming the diagram with the mouse. [end quote]

Testprogram demonstrates the problem quite clearly. Just draw a shape and you will recognize that overview will get updated until you perform a mouse click on that overview.

Regards,
Jan