public void removeFromStacks(UndoableGroup group) {
if (group.getAffectedDocuments().isEmpty()) return;
if (group.isGlobal()) {
assert myGlobalStack.getLast() == group;
myGlobalStack.removeLast();
}
for (DocumentReference each : group.getAffectedDocuments()) {
LinkedList<UndoableGroup> stack = getStack(each);
assert stack.getLast() == group;
stack.removeLast();
}
}
public Set<DocumentReference> collectClashingActions(UndoableGroup group) {
Set<DocumentReference> result = new THashSet<DocumentReference>();
for (DocumentReference each : group.getAffectedDocuments()) {
UndoableGroup last = getStack(each).getLast();
if (last != group) {
result.addAll(last.getAffectedDocuments());
}
}
if (group.isGlobal()) {
UndoableGroup last = myGlobalStack.getLast();
if (last != group) {
result.addAll(last.getAffectedDocuments());
}
}
return result;
}
public void addToStacks(UndoableGroup group) {
if (group.isGlobal()) doAddToStack(myGlobalStack, group, UndoManagerImpl.GLOBAL_UNDO_LIMIT);
for (DocumentReference each : group.getAffectedDocuments()) {
doAddToStack(getStack(each), group, UndoManagerImpl.LOCAL_UNDO_LIMIT);
}
}