if (w0.getLength() > 0) ws.add(w0);
if (w1.getLength() > 0) ws.add(w1);
}
if (ws.size() > 0) {
CircuitMutation mutation = new CircuitMutation(canvas.getCircuit());
mutation.addAll(ws);
StringGetter desc;
if (ws.size() == 1) desc = Strings.getter("addWireAction");
else desc = Strings.getter("addWiresAction");
Action act = mutation.toAction(desc);
canvas.getProject().doAction(act);