/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jbpm.gd.common.part;
import java.beans.PropertyChangeEvent;
import java.util.List;
import org.eclipse.draw2d.IFigure;
import org.eclipse.draw2d.geometry.Dimension;
import org.eclipse.draw2d.geometry.Point;
import org.eclipse.draw2d.geometry.Rectangle;
import org.eclipse.gef.AutoexposeHelper;
import org.eclipse.gef.ExposeHelper;
import org.eclipse.gef.GraphicalEditPart;
import org.eclipse.gef.MouseWheelHelper;
import org.eclipse.gef.NodeEditPart;
import org.eclipse.gef.editparts.ViewportAutoexposeHelper;
import org.eclipse.gef.editparts.ViewportExposeHelper;
import org.eclipse.gef.editparts.ViewportMouseWheelHelper;
import org.jbpm.gd.common.figure.NodeContainerFigure;
import org.jbpm.gd.common.figure.NodeFigureFactory;
import org.jbpm.gd.common.notation.AbstractNodeContainer;
import org.jbpm.gd.common.notation.Node;
import org.jbpm.gd.common.notation.NotationElement;
import org.jbpm.gd.common.policy.ContainerHighlightEditPolicy;
import org.jbpm.gd.common.policy.XYLayoutEditPolicy;
public abstract class NodeContainerGraphicalEditPart
extends AbstractNodeGraphicalEditPart
implements NodeEditPart {
public NodeContainerGraphicalEditPart(NotationElement notationElement) {
super(notationElement);
}
protected IFigure createFigure() {
return NodeFigureFactory.INSTANCE.createFigure((AbstractNodeContainer)getNotationElement());
}
public void propertyChange(PropertyChangeEvent evt) {
String eventType = evt.getPropertyName();
if ("constraint".equals(eventType) || "name".equals(eventType)) {
refreshVisuals();
} else if ("leavingEdgeAdd".equals(eventType)
|| "leavingEdgeRemove".equals(eventType)) {
refreshSourceConnections();
} else if ("arrivingEdgeAdd".equals(eventType)
|| "arrivingEdgeRemove".equals(eventType)) {
refreshTargetConnections();
} else if ("nodeAdd".equals(eventType)
|| "nodeRemove".equals(eventType)){
refreshChildren();
}
}
protected void createEditPolicies() {
super.createEditPolicies();
installEditPolicy("LayoutEditPolicy", createXYLayoutEditPolicy());
installEditPolicy("Selection Feedback", new ContainerHighlightEditPolicy());
}
public void refreshVisuals() {
Rectangle constraint = null;
if (((Node)getNotationElement()).getConstraint() != null) {
constraint = new Rectangle(((Node)getNotationElement()).getConstraint());
} else {
constraint = new Rectangle(new Point(0, 0), new Dimension(-1, -1));
}
((GraphicalEditPart)getParent()).setLayoutConstraint(this, getFigure(), constraint);
}
protected List getModelChildren() {
return ((AbstractNodeContainer)getNotationElement()).getNodes();
}
public Object getAdapter(Class key) {
if (key == AutoexposeHelper.class)
return new ViewportAutoexposeHelper(this);
if (key == ExposeHelper.class)
return new ViewportExposeHelper(this);
if (key == MouseWheelHelper.class)
return new ViewportMouseWheelHelper(this);
return super.getAdapter(key);
}
public IFigure getContentPane() {
return ((NodeContainerFigure)getFigure()).getContentPane();
}
protected abstract XYLayoutEditPolicy createXYLayoutEditPolicy();
}