diagramtreeeditpart.java

eclipse开发笔记

package hellogef.control;

import hellogef.model.Diagram;

import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.util.List;

import org.eclipse.gef.editparts.AbstractTreeEditPart;

public class DiagramTreeEditPart extends AbstractTreeEditPart implements PropertyChangeListener{
	public DiagramTreeEditPart(Object model) {
		super(model);
	}

	public void propertyChange(PropertyChangeEvent evt) {
		refreshChildren();
	}
	public void activate() {
		super.activate();
		((Diagram) getModel()).addPropertyChangeListener(this);
	}
	public void deactivate() {
		super.deactivate();
		((Diagram) getModel()).removePropertyChangeListener(this);
	}
	protected List getModelChildren() {
		return ((Diagram) getModel()).getNodes();
	}
}