/**
* Can display existing link between views.
*
* @param connector the connector
* @param sourceView the source view
* @param targetView the target view
* @return true, if successful
* @see
* org.eclipse.papyrus.infra.gmfdiag.common.editpolicies.AbstractShowHideRelatedLinkEditPolicy#canDisplayExistingLinkBetweenViews(org.eclipse.uml2.uml.Connector,
* org.eclipse.gmf.runtime.notation.View, org.eclipse.gmf.runtime.notation.View)
*/
@Override
public boolean canDisplayExistingLinkBetweenViews(
final EObject element, final View sourceView, final View targetView) {
return (element instanceof Connector)
&& ConnectorUtils.canDisplayExistingConnectorBetweenViewsAccordingToNestedPaths(
(Connector) element, sourceView, targetView);
}
/**
* Gets the show link command from updater link descriptor.
*
* @param linkToShow the link to show
* @param domain2NotationMap the domain2 notation map
* @param descriptor the descriptor
* @return the show link command from updater link descriptor
*/
private ICommand getShowLinkCommandFromUpdaterLinkDescriptor(
final EObject linkToShow,
final Domain2Notation domain2NotationMap,
UpdaterLinkDescriptor descriptor) {
ConnectorUtils connectorUtils = new ConnectorUtils();
if (descriptor != null) {
Set<View> sourceViewList = domain2NotationMap.get(descriptor.getSource());
Set<View> targetViewList = domain2NotationMap.get(descriptor.getDestination());
final Set<View> linkSet = domain2NotationMap.get(linkToShow);
CompositeCommand compositeCommand = new CompositeCommand("Restore All Related Links");
for (View sourceView : sourceViewList) {
for (View targetView : targetViewList) {
if (canDisplayExistingLinkBetweenViews(linkToShow, sourceView, targetView)) {
if (ConnectorUtils.canDisplayExistingConnectorBetweenViewsAccordingToNestedPaths(
(Connector) linkToShow, sourceView, targetView)) {
boolean alreadyDisplayed = false;
if (linkSet != null) {
for (View viewLink : linkSet) {
boolean linkForViews =
isLinkForViews(
(org.eclipse.gmf.runtime.notation.Connector) viewLink,
sourceView,
targetView);
alreadyDisplayed = alreadyDisplayed || linkForViews;
}
}
if (!alreadyDisplayed) {
EditPart sourceEditPart = getEditPartFromView(sourceView);
EditPart targetEditPart = getEditPartFromView(targetView);
// If the parts are still null...
if (sourceEditPart == null || targetEditPart == null) {
return null;
}
String semanticHint = getSemanticHint(linkToShow);
CreateConnectionViewRequest.ConnectionViewDescriptor viewDescriptor =
new CreateConnectionViewRequest.ConnectionViewDescriptor(
descriptor.getSemanticAdapter(),
semanticHint,
ViewUtil.APPEND,
false,
((GraphicalEditPart) getHost()).getDiagramPreferencesHint());
CreateConnectionViewRequest ccr = new CreateConnectionViewRequest(viewDescriptor);
ccr.setType(org.eclipse.gef.RequestConstants.REQ_CONNECTION_START);
ccr.setSourceEditPart(sourceEditPart);
sourceEditPart.getCommand(ccr);
ccr.setTargetEditPart(targetEditPart);
ccr.setType(org.eclipse.gef.RequestConstants.REQ_CONNECTION_END);
CommandProxy commandProxy = new CommandProxy(targetEditPart.getCommand(ccr));
compositeCommand.add(commandProxy);
}
}
}
}
}
return compositeCommand;
}
return null;
}
