/** @generated */
protected boolean provides(CreateNodeViewOperation op) {
if (op.getContainerView() == null) {
return false;
}
IElementType elementType = getSemanticElementType(op.getSemanticAdapter());
EObject domainElement = getSemanticElement(op.getSemanticAdapter());
int visualID;
if (op.getSemanticHint() == null) {
// Semantic hint is not specified. Can be a result of call from CanonicalEditPolicy.
// In this situation there should be NO elementType, visualID will be determined
// by VisualIDRegistry.getNodeVisualID() for domainElement.
if (elementType != null || domainElement == null) {
return false;
}
visualID = GeometryVisualIDRegistry.getNodeVisualID(op.getContainerView(), domainElement);
} else {
visualID = GeometryVisualIDRegistry.getVisualID(op.getSemanticHint());
if (elementType != null) {
if (!GeometryElementTypes.isKnownElementType(elementType)
|| (!(elementType instanceof IHintedType))) {
return false; // foreign element type
}
String elementTypeHint = ((IHintedType) elementType).getSemanticHint();
if (!op.getSemanticHint().equals(elementTypeHint)) {
return false; // if semantic hint is specified it should be the same as in element type
}
if (domainElement != null
&& visualID
!= GeometryVisualIDRegistry.getNodeVisualID(op.getContainerView(), domainElement)) {
return false; // visual id for node EClass should match visual id from element type
}
} else {
if (!GeometryEditPart.MODEL_ID.equals(
GeometryVisualIDRegistry.getModelID(op.getContainerView()))) {
return false; // foreign diagram
}
switch (visualID) {
case PointEditPart.VISUAL_ID:
if (domainElement == null
|| visualID
!= GeometryVisualIDRegistry.getNodeVisualID(
op.getContainerView(), domainElement)) {
return false; // visual id in semantic hint should match visual id for domain element
}
break;
default:
return false;
}
}
}
return PointEditPart.VISUAL_ID == visualID;
}
/** @generated */
protected boolean provides(CreateEdgeViewOperation op) {
IElementType elementType = getSemanticElementType(op.getSemanticAdapter());
if (!GeometryElementTypes.isKnownElementType(elementType)
|| (!(elementType instanceof IHintedType))) {
return false; // foreign element type
}
String elementTypeHint = ((IHintedType) elementType).getSemanticHint();
if (elementTypeHint == null
|| (op.getSemanticHint() != null && !elementTypeHint.equals(op.getSemanticHint()))) {
return false; // our hint is visual id and must be specified, and it should be the same as in
// element type
}
int visualID = GeometryVisualIDRegistry.getVisualID(elementTypeHint);
EObject domainElement = getSemanticElement(op.getSemanticAdapter());
if (domainElement != null
&& visualID != GeometryVisualIDRegistry.getLinkWithClassVisualID(domainElement)) {
return false; // visual id for link EClass should match visual id from element type
}
return true;
}
