/**
* Builds the command which will execute the user-specified operations to create a new operand.
*
* @param nodeContainer the container in which to create the operand.
* @param tool the tool to use to create the operand.
* @param startingEndPredecessor the event end graphically preceding the starting position of the
* new Operand.
* @param finishingEndPredecessor the event end graphically preceding the finishing position of
* the new Operand.
* @return a command to create the execution.
*/
public static org.eclipse.emf.common.command.Command buildCreateOperantCommandFromTool(
DDiagramElementContainer nodeContainer,
final OperandCreationTool tool,
final EventEnd startingEndPredecessor,
final EventEnd finishingEndPredecessor) {
CommandBuilder builder =
new OperandCreationCommandBuilder(
tool, nodeContainer, startingEndPredecessor, finishingEndPredecessor);
Session session = SessionManager.INSTANCE.getSession(nodeContainer.getTarget());
return getCommand(builder, session);
}
private Command getLayoutConstraintsCommand(boolean collapsed, Command initialCommand) {
if (getHost() instanceof IResizableCompartmentEditPart
&& getHost().getParent() instanceof AbstractDiagramElementContainerEditPart) {
AbstractDiagramElementContainerEditPart regionPart =
(AbstractDiagramElementContainerEditPart) getHost().getParent();
View notationView = regionPart.getNotationView();
if (notationView instanceof Node
&& ((Node) notationView).getLayoutConstraint() instanceof Size
&& notationView.getElement() instanceof DDiagramElementContainer) {
TransactionalEditingDomain editingDomain = getEditingDomain();
CompositeTransactionalCommand ctc =
new CompositeTransactionalCommand(
editingDomain,
collapsed
? Messages
.RegionCollapseAwarePropertyHandlerEditPolicy_collapseRegionCommandLabel
: Messages
.RegionCollapseAwarePropertyHandlerEditPolicy_expandRegionCommandLabel);
Command result = new ICommandProxy(ctc);
if (initialCommand != null) {
ctc.add(new CommandProxy(initialCommand));
}
Size size = (Size) ((Node) notationView).getLayoutConstraint();
DDiagramElementContainer ddec = (DDiagramElementContainer) notationView.getElement();
Iterable<AbsoluteBoundsFilter> boundsFilters =
Iterables.filter(ddec.getGraphicalFilters(), AbsoluteBoundsFilter.class);
AbsoluteBoundsFilter expandedBoundsMarker =
Iterables.isEmpty(boundsFilters) ? null : boundsFilters.iterator().next();
// Update GMF size
Dimension newGmfSize = new Dimension(size.getWidth(), size.getHeight());
int parentStackDirection = regionPart.getParentStackDirection();
if (parentStackDirection == PositionConstants.NORTH_SOUTH) {
if (!collapsed) {
newGmfSize.setHeight(
expandedBoundsMarker == null ? -1 : expandedBoundsMarker.getHeight());
} else if (size.getHeight() != -1) {
newGmfSize.setHeight(LayoutUtils.COLLAPSED_VERTICAL_REGION_HEIGHT);
}
} else if (parentStackDirection == PositionConstants.EAST_WEST) {
if (!collapsed) {
newGmfSize.setWidth(
expandedBoundsMarker == null ? -1 : expandedBoundsMarker.getWidth());
} else if (!isTruncatedLabel(regionPart)) {
// Change the GMF width only when label is not truncated
// to avoid to have a collapsed Region bigger than the
// expanded size (resized by the user).
// Do not specify a collapsed width as it will depend on
// the label size.
newGmfSize.setWidth(-1);
}
}
SetBoundsCommand setBoundsCommand =
new SetBoundsCommand(
editingDomain,
Messages.RegionCollapseAwarePropertyHandlerEditPolicy_gmfSizeUpdateCommandLabel,
new EObjectAdapter(notationView),
newGmfSize);
ctc.add(setBoundsCommand);
// Remember expanded size: create/update/remove an
// AbsoluteBoundsFilter marker on the DDiagramElement.
if (collapsed) {
if (expandedBoundsMarker != null) {
ctc.add(
new GMFCommandWrapper(
editingDomain,
new SetCommand(
editingDomain,
expandedBoundsMarker,
DiagramPackage.eINSTANCE.getAbsoluteBoundsFilter_Height(),
size.getHeight())));
ctc.add(
new GMFCommandWrapper(
editingDomain,
new SetCommand(
editingDomain,
expandedBoundsMarker,
DiagramPackage.eINSTANCE.getAbsoluteBoundsFilter_Width(),
size.getWidth())));
} else {
expandedBoundsMarker = DiagramFactory.eINSTANCE.createAbsoluteBoundsFilter();
expandedBoundsMarker.setHeight(size.getHeight());
expandedBoundsMarker.setWidth(size.getWidth());
ctc.add(
new GMFCommandWrapper(
editingDomain,
new AddCommand(
editingDomain, ddec.getGraphicalFilters(), expandedBoundsMarker)));
}
} else if (expandedBoundsMarker != null) {
ctc.add(
new GMFCommandWrapper(
editingDomain,
new RemoveCommand(
editingDomain, ddec.getGraphicalFilters(), expandedBoundsMarker)));
}
return result;
}
}
return initialCommand;
}