statemachine: Small refactoring of transition registration

Split the guts of registerTransitions() into a registerTransition()
function. This allows a particular transition to be registered,
instead of walking the source state's whole list of transitions
every time.

Move the logic for determining whether a transition should be
registered to the state machine, since that's also where the actual
registration takes place.

Change-Id: I0496dee9454cd77b62cf2768942a82a96b320744
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@nokia.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/src/corelib/statemachine/qstatemachine_p.h b/src/corelib/statemachine/qstatemachine_p.h
index 113f17f973..f3291e7d35 100644
--- a/src/corelib/statemachine/qstatemachine_p.h
+++ b/src/corelib/statemachine/qstatemachine_p.h
@@ -170,9 +170,13 @@ public:
     void goToState(QAbstractState *targetState);
 
     void registerTransitions(QAbstractState *state);
+    void maybeRegisterTransition(QAbstractTransition *transition);
+    void registerTransition(QAbstractTransition *transition);
+    void maybeRegisterSignalTransition(QSignalTransition *transition);
     void registerSignalTransition(QSignalTransition *transition);
     void unregisterSignalTransition(QSignalTransition *transition);
 #ifndef QT_NO_STATEMACHINE_EVENTFILTER
+    void maybeRegisterEventTransition(QEventTransition *transition);
     void registerEventTransition(QEventTransition *transition);
     void unregisterEventTransition(QEventTransition *transition);
     void handleFilteredEvent(QObject *watched, QEvent *event);