Examples with DiagramModification org.osate.ge.internal.diagram.runtime.DiagramModification used on opensource projects

Example 6 with DiagramModification

use of org.osate.ge.internal.diagram.runtime.DiagramModification in project osate2 by osate.

the class PasteAction method copyClipboardContents.

/**
 * Copies the clipboard contents to the destination business object and diagram element.
 * @return the diagram elements which were created. Does not include children of created diagram elements.
 */
private Collection<DiagramElement> copyClipboardContents(final EObject dstBoToModify, final DiagramNode dstDiagramNode, final DiagramModification m, final ReferenceBuilderService refBuilder) {
    // Determine the minimum coordinates from the elements whose positions will be copied
    // The minimum coordinates is null if none of the copied diagram elements have an absolute position. This is reasonable because the minimum coordinates
    // are only needed if a copied diagram element has an absolute position.
    final Point minCoordinates = getCopiedDiagramElements().stream().map(CopiedDiagramElement::getAbsolutePosition).filter(Predicates.notNull()).reduce((a, b) -> new Point(Math.min(a.x, b.x), Math.min(a.y, b.y))).orElse(null);
    // This list will contain the diagram elements that are created by the copying process. Does not contain their children.
    final List<DiagramElement> newDiagramElements = new ArrayList<>();
    // Copy each copied diagram element into the diagram and model.
    for (final CopiedDiagramElement copiedDiagramElement : getCopiedDiagramElements()) {
        final DiagramElement newDiagramElement;
        if (copiedDiagramElement.getCopiedBusinessObject() == null) {
            newDiagramElement = CopyAndPasteUtil.copyDiagramElement(copiedDiagramElement.getDiagramElement(), dstDiagramNode, copiedDiagramElement.getDiagramElement().getRelativeReference(), refBuilder);
        } else {
            final Object boFromCopiedDiagramElement = copiedDiagramElement.getCopiedBusinessObject();
            final RelativeBusinessObjectReference newRelativeRef;
            if (boFromCopiedDiagramElement instanceof EmbeddedBusinessObject) {
                // The relative reference will be assigned when copying the diagram element.
                newRelativeRef = null;
            } else if (boFromCopiedDiagramElement instanceof EObject) {
                // Get the list that to which the copied object will be added
                final EStructuralFeature compatibleFeature = getCompatibleStructuralFeature(copiedDiagramElement.getContainingFeature(), dstBoToModify.eClass());
                final Object containingFeatureValue = dstBoToModify.eGet(compatibleFeature);
                if (!(containingFeatureValue instanceof Collection)) {
                    throw new RuntimeException("Unexpected case. Value of containing feature was not a collection");
                }
                @SuppressWarnings("unchecked") final Collection<EObject> containingFeatureValueCollection = (Collection<EObject>) containingFeatureValue;
                final EObject copiedEObject = EcoreUtil.copy((EObject) boFromCopiedDiagramElement);
                containingFeatureValueCollection.add(copiedEObject);
                ensureBusinessObjectHasUniqueName(copiedEObject, copiedDiagramElement.getDiagramElement().getBusinessObjectHandler());
                ensurePackagesAreImported(copiedEObject);
                newRelativeRef = refBuilder.getRelativeReference(copiedEObject);
            } else {
                throw new RuntimeException("Unsupported case:  " + boFromCopiedDiagramElement);
            }
            newDiagramElement = CopyAndPasteUtil.copyDiagramElement(copiedDiagramElement.getDiagramElement(), dstDiagramNode, newRelativeRef, refBuilder);
        }
        // Set the position of the new diagram element. They are positioned relative to each other at a fixed offset within the new parent.
        final Point cp = copiedDiagramElement.getAbsolutePosition();
        final Point newPosition = cp == null ? null : new Point(cp.x - minCoordinates.x + 50, cp.y - minCoordinates.y + 50);
        DiagramElementLayoutUtil.moveElement(m, newDiagramElement, newPosition);
        // Remove existing element
        final DiagramElement existingDiagramElement = dstDiagramNode.getChildByRelativeReference(newDiagramElement.getRelativeReference());
        if (existingDiagramElement != null) {
            m.removeElement(existingDiagramElement);
        }
        // Add the new diagram element to the diagram.
        m.addElement(newDiagramElement);
        newDiagramElements.add(newDiagramElement);
    }
    return newDiagramElements;
}