/**
* 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;
}
@Override
protected ICommand getAfterReorientRelationshipCommand(ReorientRelationshipRequest request) {
ICommand defaultCommand = super.getAfterReorientRelationshipCommand(request);
int reorientDirection = request.getDirection();
Edge reorientedEdgeView = RequestParameterUtils.getReconnectedEdge(request);
View newEndView = RequestParameterUtils.getReconnectedEndView(request);
View oppositeEndView =
(reorientDirection == ReorientRelationshipRequest.REORIENT_SOURCE)
? reorientedEdgeView.getTarget()
: reorientedEdgeView.getSource();
// Restrict this advice action to the end of Connector creation gesture (before clicking on
// target)
// in order to add SysML specific constraint
Connector connector = (Connector) request.getRelationship();
// Restrict action to SysML Connector (meaning owned by Block)
if (((ISpecializationType) SysMLElementTypes.BLOCK)
.getMatcher()
.matches(connector.eContainer())) {
// If the source or target view is enclosed in a structure encapsulated view, forbid creation.
if (utils.isCrossingEncapsulation(newEndView, oppositeEndView)
|| utils.isCrossingEncapsulation(oppositeEndView, newEndView)) {
return UnexecutableCommand.INSTANCE;
}
int tmpNestedPathDirection = -1;
List<Property> tmpNestedPath = Collections.emptyList();
// Check if new end view is nested
tmpNestedPathDirection =
(reorientDirection == ReorientRelationshipRequest.REORIENT_SOURCE)
? SetNestedPathCommand.NESTED_SOURCE
: SetNestedPathCommand.NESTED_TARGET;
tmpNestedPath = utils.getNestedPropertyPath(newEndView, oppositeEndView);
defaultCommand =
CompositeCommand.compose(
defaultCommand,
new SetNestedPathCommand(
"Set connector nested source path",
request.getRelationship(),
request,
tmpNestedPath,
tmpNestedPathDirection)); //$NON-NLS-0$
// Check if opposite end view is nested
tmpNestedPathDirection =
(reorientDirection == ReorientRelationshipRequest.REORIENT_SOURCE)
? SetNestedPathCommand.NESTED_TARGET
: SetNestedPathCommand.NESTED_SOURCE;
tmpNestedPath = utils.getNestedPropertyPath(oppositeEndView, newEndView);
defaultCommand =
CompositeCommand.compose(
defaultCommand,
new SetNestedPathCommand(
"Set connector nested target path",
request.getRelationship(),
request,
tmpNestedPath,
tmpNestedPathDirection)); //$NON-NLS-0$
}
return defaultCommand;
}