/*
* Copyright 2010 JBoss Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.drools.eclipse.editors.rete.part;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import org.drools.eclipse.editors.rete.figure.ConnectionFigure;
import org.drools.eclipse.editors.rete.model.ModelElement;
import org.eclipse.draw2d.IFigure;
import org.eclipse.draw2d.PolylineConnection;
import org.eclipse.draw2d.PolylineDecoration;
import org.eclipse.gef.EditPolicy;
import org.eclipse.gef.editparts.AbstractConnectionEditPart;
import org.eclipse.gef.editpolicies.ConnectionEndpointEditPolicy;
/**
* Edit part for Connection model elements.
*/
class ConnectionEditPart extends AbstractConnectionEditPart
implements
PropertyChangeListener {
/* (non-Javadoc)
* @see org.eclipse.gef.editparts.AbstractGraphicalEditPart#activate()
*/
public void activate() {
if ( !isActive() ) {
super.activate();
((ModelElement) getModel()).addPropertyChangeListener( this );
}
}
/* (non-Javadoc)
* @see org.eclipse.gef.editparts.AbstractEditPart#createEditPolicies()
*/
protected void createEditPolicies() {
installEditPolicy( EditPolicy.CONNECTION_ENDPOINTS_ROLE,
new ConnectionEndpointEditPolicy() );
}
/* (non-Javadoc)
* @see org.eclipse.gef.editparts.AbstractGraphicalEditPart#createFigure()
*/
protected IFigure createFigure() {
PolylineConnection connection = new ConnectionFigure();
PolylineDecoration decoration = new PolylineDecoration();
connection.setTargetDecoration( decoration );
return connection;
}
/* (non-Javadoc)
* @see org.eclipse.gef.editparts.AbstractGraphicalEditPart#deactivate()
*/
public void deactivate() {
if ( isActive() ) {
super.deactivate();
((ModelElement) getModel()).removePropertyChangeListener( this );
}
}
/* (non-Javadoc)
* @see java.beans.PropertyChangeListener#propertyChange(java.beans.PropertyChangeEvent)
*/
public void propertyChange(PropertyChangeEvent evt) {
// Doing nothing
}
}