Add a qeventtransition feature

This replaces the QT_NO_STATEMACHINE_EVENTFILTER define, and
gives it a proper name.

Change-Id: I2b9386458224ff2bd30003daac548daa61961085
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>

configure.json

@@ -2518,6 +2518,10 @@
             "description": "Mimetype handling",
             "output": [ "publicFeature", "feature" ]
         },
+        "qeventtransition": {
+            "description": "QEventTransition class",
+            "output": [ "publicFeature" ]
+        },
         "extra_features": {
             "comment": "### remove, once qfeatures.txt is ported to the new system",
             "output": [ "extraFeatures" ]

src/corelib/statemachine/qstatemachine.cpp

@@ -57,7 +57,7 @@
 #include "private/qobject_p.h"
 #include "private/qthread_p.h"
 
-#ifndef QT_NO_STATEMACHINE_EVENTFILTER
+#if QT_CONFIG(qeventtransition)
 #include "qeventtransition.h"
 #include "qeventtransition_p.h"
 #endif
@@ -2196,7 +2196,7 @@ void QStateMachinePrivate::maybeRegisterTransition(QAbstractTransition *transiti
     if (QSignalTransition *st = qobject_cast<QSignalTransition*>(transition)) {
         maybeRegisterSignalTransition(st);
     }
-#ifndef QT_NO_STATEMACHINE_EVENTFILTER
+#if QT_CONFIG(qeventtransition)
     else if (QEventTransition *et = qobject_cast<QEventTransition*>(transition)) {
         maybeRegisterEventTransition(et);
     }
@@ -2208,7 +2208,7 @@ void QStateMachinePrivate::registerTransition(QAbstractTransition *transition)
     if (QSignalTransition *st = qobject_cast<QSignalTransition*>(transition)) {
         registerSignalTransition(st);
     }
-#ifndef QT_NO_STATEMACHINE_EVENTFILTER
+#if QT_CONFIG(qeventtransition)
     else if (QEventTransition *oet = qobject_cast<QEventTransition*>(transition)) {
         registerEventTransition(oet);
     }
@@ -2220,7 +2220,7 @@ void QStateMachinePrivate::unregisterTransition(QAbstractTransition *transition)
     if (QSignalTransition *st = qobject_cast<QSignalTransition*>(transition)) {
         unregisterSignalTransition(st);
     }
-#ifndef QT_NO_STATEMACHINE_EVENTFILTER
+#if QT_CONFIG(qeventtransition)
     else if (QEventTransition *oet = qobject_cast<QEventTransition*>(transition)) {
         unregisterEventTransition(oet);
     }
@@ -2342,7 +2342,7 @@ void QStateMachinePrivate::unregisterAllTransitions()
     }
 }
 
-#ifndef QT_NO_STATEMACHINE_EVENTFILTER
+#if QT_CONFIG(qeventtransition)
 void QStateMachinePrivate::maybeRegisterEventTransition(QEventTransition *transition)
 {
     if ((state == Running) && configuration.contains(transition->sourceState()))
@@ -2872,7 +2872,7 @@ bool QStateMachine::event(QEvent *e)
     return QState::event(e);
 }
 
-#ifndef QT_NO_STATEMACHINE_EVENTFILTER
+#if QT_CONFIG(qeventtransition)
 /*!
   \reimp
 */

src/corelib/statemachine/qstatemachine.h

@@ -141,7 +141,7 @@ public:
 
     QSet<QAbstractState*> configuration() const;
 
-#ifndef QT_NO_STATEMACHINE_EVENTFILTER
+#if QT_CONFIG(qeventtransition)
     bool eventFilter(QObject *watched, QEvent *event) Q_DECL_OVERRIDE;
 #endif
 

src/corelib/statemachine/qstatemachine_p.h

@@ -66,7 +66,7 @@
 QT_BEGIN_NAMESPACE
 
 class QEvent;
-#ifndef QT_NO_STATEMACHINE_EVENTFILTER
+#if QT_CONFIG(qeventtransition)
 class QEventTransition;
 #endif
 class QSignalEventGenerator;
@@ -186,7 +186,7 @@ public:
     void registerSignalTransition(QSignalTransition *transition);
     void unregisterSignalTransition(QSignalTransition *transition);
     void registerMultiThreadedSignalTransitions();
-#ifndef QT_NO_STATEMACHINE_EVENTFILTER
+#if QT_CONFIG(qeventtransition)
     void maybeRegisterEventTransition(QEventTransition *transition);
     void registerEventTransition(QEventTransition *transition);
     void unregisterEventTransition(QEventTransition *transition);
@@ -301,7 +301,7 @@ public:
 
     QHash<const QObject*, QVector<int> > connections;
     QMutex connectionsMutex;
-#ifndef QT_NO_STATEMACHINE_EVENTFILTER
+#if QT_CONFIG(qeventtransition)
     QHash<QObject*, QHash<QEvent::Type, int> > qobjectEvents;
 #endif
     QFreeList<void> delayedEventIdFreeList;

src/corelib/statemachine/statemachine.pri

@@ -22,8 +22,10 @@ SOURCES += $$PWD/qstatemachine.cpp \
 	   $$PWD/qabstracttransition.cpp \
 	   $$PWD/qsignaltransition.cpp
 
-!contains(DEFINES, QT_NO_STATEMACHINE_EVENTFILTER) {
-HEADERS += $$PWD/qeventtransition.h \
-	   $$PWD/qeventtransition_p.h
-SOURCES += $$PWD/qeventtransition.cpp
+qtConfig(qeventtransition) {
+    HEADERS += \
+        $$PWD/qeventtransition.h \
+        $$PWD/qeventtransition_p.h
+    SOURCES += \
+        $$PWD/qeventtransition.cpp
 }