Cleanup Widgets examples - new signal/slot syntax

Cleanup the Widget examples - use the new signal/slot syntax where
possible - layout, statemachine, tools and touch subdirectory

Change-Id: I466b309b643ef7ffc27be7591fa10f4c75cfd3f8
Reviewed-by: Luca Beldi <v.ronin@yahoo.it>
Reviewed-by: Sze Howe Koh <szehowe.koh@gmail.com>
Reviewed-by: Paul Wicking <paul.wicking@qt.io>

1 files changed, 8 insertions, 8 deletions

diff --git a/examples/widgets/statemachine/trafficlight/main.cpp b/examples/widgets/statemachine/trafficlight/main.cpp
index 21df91d8b0..b348d4f65d 100644
--- a/examples/widgets/statemachine/trafficlight/main.cpp
+++ b/examples/widgets/statemachine/trafficlight/main.cpp
@@ -132,11 +132,11 @@ QState *createLightState(LightWidget *light, int duration, QState *parent = 0)
     timer->setInterval(duration);
     timer->setSingleShot(true);
     QState *timing = new QState(lightState);
-    QObject::connect(timing, SIGNAL(entered()), light, SLOT(turnOn()));
-    QObject::connect(timing, SIGNAL(entered()), timer, SLOT(start()));
-    QObject::connect(timing, SIGNAL(exited()), light, SLOT(turnOff()));
+    QObject::connect(timing, &QAbstractState::entered, light, &LightWidget::turnOn);
+    QObject::connect(timing, &QAbstractState::entered, timer, QOverload<>::of(&QTimer::start));
+    QObject::connect(timing, &QAbstractState::exited, light, &LightWidget::turnOff);
     QFinalState *done = new QFinalState(lightState);
-    timing->addTransition(timer, SIGNAL(timeout()), done);
+    timing->addTransition(timer, &QTimer::timeout, done);
     lightState->setInitialState(timing);
     return lightState;
 }
@@ -159,14 +159,14 @@ public:
         redGoingYellow->setObjectName("redGoingYellow");
         QState *yellowGoingGreen = createLightState(widget->yellowLight(), 1000);
         yellowGoingGreen->setObjectName("yellowGoingGreen");
-        redGoingYellow->addTransition(redGoingYellow, SIGNAL(finished()), yellowGoingGreen);
+        redGoingYellow->addTransition(redGoingYellow, &QState::finished, yellowGoingGreen);
         QState *greenGoingYellow = createLightState(widget->greenLight(), 3000);
         greenGoingYellow->setObjectName("greenGoingYellow");
-        yellowGoingGreen->addTransition(yellowGoingGreen, SIGNAL(finished()), greenGoingYellow);
+        yellowGoingGreen->addTransition(yellowGoingGreen, &QState::finished, greenGoingYellow);
         QState *yellowGoingRed = createLightState(widget->yellowLight(), 1000);
         yellowGoingRed->setObjectName("yellowGoingRed");
-        greenGoingYellow->addTransition(greenGoingYellow, SIGNAL(finished()), yellowGoingRed);
-        yellowGoingRed->addTransition(yellowGoingRed, SIGNAL(finished()), redGoingYellow);
+        greenGoingYellow->addTransition(greenGoingYellow, &QState::finished, yellowGoingRed);
+        yellowGoingRed->addTransition(yellowGoingRed, &QState::finished, redGoingYellow);
 
         machine->addState(redGoingYellow);
         machine->addState(yellowGoingGreen);