/** @param editparts */
private List flitterEditpart(List editparts) {
List copy = new ArrayList(editparts);
int size = editparts.size();
for (int i = 0; i < size; i++) {
EditPart part = (EditPart) editparts.get(i);
if (part.getAdapter(ISelectionFilter.class) != null) {
copy = ((ISelectionFilter) part.getAdapter(ISelectionFilter.class)).filterEditpart(copy);
}
}
editparts = copy;
return editparts;
}
boolean navigateNextAnchor(int direction) {
EditPart focus = getCurrentViewer().getFocusEditPart();
AccessibleAnchorProvider provider;
provider = (AccessibleAnchorProvider) focus.getAdapter(AccessibleAnchorProvider.class);
if (provider == null) return false;
List list;
if (isInState(STATE_ACCESSIBLE_DRAG_IN_PROGRESS)) list = provider.getTargetAnchorLocations();
else list = provider.getSourceAnchorLocations();
Point start = getLocation();
int distance = Integer.MAX_VALUE;
Point next = null;
for (int i = 0; i < list.size(); i++) {
Point p = (Point) list.get(i);
if (p.equals(start) || (direction != 0 && (start.getPosition(p) != direction))) continue;
int d = p.getDistanceOrthogonal(start);
if (d < distance) {
distance = d;
next = p;
}
}
if (next != null) {
ourPlaceMouseInViewer(next);
return true;
}
return false;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.gef.ui.actions.WorkbenchPartAction#calculateEnabled()
*/
@Override
protected boolean calculateEnabled() {
node = null;
List<?> selectedObjects = getSelectedObjects();
if (selectedObjects.size() != 1) {
return false;
}
Object selectedObject = selectedObjects.get(0);
if ((selectedObject instanceof EditPart)) {
EditPart editpart = (EditPart) selectedObject;
Object selectedModel = editpart.getModel();
if ((selectedModel instanceof Unit && !(selectedModel instanceof ConditionalUnitPart))) {
transUnit = (Unit) editpart.getModel();
return true;
}
if (selectedModel instanceof EContainerDescriptor
&& editpart.getAdapter(Parameter.class) != null) {
transUnit = (Unit) ((EContainerDescriptor) selectedModel).getContainer();
return true;
}
if (editpart.getModel() instanceof Node
&& ((editpart.getParent() instanceof LhsRhsTreeEditPart)
|| (editpart instanceof RuleNodeEditPart
&& (editpart.getParent() instanceof LhsRhsEditPart)))) {
node = (Node) editpart.getModel();
transUnit = (Unit) node.getGraph().eContainer();
return ParameterUtil.getParameter(node) == null;
}
}
return false;
}