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package org.eclipse.papyrus.uml.diagram.sequence.edit.policies;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.gef.GraphicalEditPart;
import org.eclipse.papyrus.uml.diagram.common.editpolicies.AbstractMaskManagedEditPolicy;
import org.eclipse.papyrus.uml.diagram.sequence.edit.parts.LifelineEditPart;
import org.eclipse.papyrus.uml.diagram.sequence.edit.parts.LifelineNameEditPart;
import org.eclipse.papyrus.uml.diagram.sequence.util.LifelineLabelHelper;
import org.eclipse.uml2.uml.ConnectableElement;
import org.eclipse.uml2.uml.Lifeline;
import org.eclipse.uml2.uml.Type;
import org.eclipse.uml2.uml.UMLPackage;
public class LifelineLabelEditPolicy extends AbstractMaskManagedEditPolicy {
@Override
public void addAdditionalListeners() {
super.addAdditionalListeners();
Lifeline lifeline = getUMLElement();
// check host semantic element is not null
if(lifeline == null) {
return;
}
// adds a listener to the element itself, and to linked elements, like Type
getDiagramEventBroker().addNotificationListener(lifeline, this);
ConnectableElement ce = lifeline.getRepresents();
if(ce != null) {
getDiagramEventBroker().addNotificationListener(ce, this);
if(ce.getType() != null) {
getDiagramEventBroker().addNotificationListener(ce.getType(), this);
}
}
}
@Override
protected void removeAdditionalListeners() {
super.removeAdditionalListeners();
Lifeline lifeline = getUMLElement();
// check host semantic element is not null
if(lifeline == null) {
return;
}
getDiagramEventBroker().removeNotificationListener(lifeline, this);
ConnectableElement ce = lifeline.getRepresents();
if(ce != null) {
getDiagramEventBroker().removeNotificationListener(ce, this);
if(ce.getType() != null) {
getDiagramEventBroker().removeNotificationListener(ce.getType(), this);
}
}
}
@Override
public void notifyChanged(Notification notification) {
super.notifyChanged(notification);
Object object = notification.getNotifier();
if(object == null || getUMLElement() == null) {
return;
}
if(notification.getFeature().equals(UMLPackage.eINSTANCE.getNamedElement_Name())) {
refreshDisplay();
} else if(notification.getFeature().equals(UMLPackage.Literals.LIFELINE__REPRESENTS)) {
// change represent element
if(notification.getNewValue() instanceof ConnectableElement) {
ConnectableElement ce = (ConnectableElement)notification.getNewValue();
getDiagramEventBroker().addNotificationListener(ce, this);
if(ce.getType() != null) {
getDiagramEventBroker().addNotificationListener(ce.getType(), this);
}
}
if(notification.getOldValue() instanceof ConnectableElement) {
ConnectableElement ce = (ConnectableElement)notification.getOldValue();
getDiagramEventBroker().removeNotificationListener(ce, this);
if(ce.getType() != null) {
getDiagramEventBroker().removeNotificationListener(ce.getType(), this);
}
}
refreshDisplay();
} else if(isMaskManagedAnnotation(object) || isRemovedMaskManagedLabelAnnotation(object, notification)) {
refreshDisplay();
} else if(object.equals(getUMLElement().getRepresents())) {
// change represent type
if(notification.getNewValue() instanceof Type && notification.getNewValue() instanceof EObject) {
getDiagramEventBroker().addNotificationListener((EObject)notification.getNewValue(), this);
}
if(notification.getOldValue() instanceof Type && notification.getOldValue() instanceof EObject) {
getDiagramEventBroker().removeNotificationListener((EObject)notification.getOldValue(), this);
}
refreshDisplay();
}
}
@Override
public void refreshDisplay() {
// calls the helper for this edit Part
LifelineEditPart lp = (LifelineEditPart)getHost();
List children = lp.getChildren();
for(Object p : children) {
if(p instanceof LifelineNameEditPart) {
LifelineLabelHelper.getInstance().refreshEditPartDisplay((GraphicalEditPart)p);
}
}
}
@Override
public Collection<String> getDefaultDisplayValue() {
return LifelineLabelHelper.DEFAULT_LABEL_DISPLAY;
}
/**
* {@inheritDoc}
*/
@Override
public Map<String, String> getMasks() {
return LifelineLabelHelper.getInstance().getMasks();
}
/**
* {@inheritDoc}
*/
@Override
public Lifeline getUMLElement() {
return (Lifeline)hostSemanticElement;
}
}
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