Better connection mechanism for events

The connectToEvent() mechanism is analogous to connectToState() and
allows arbitrary event specifications, with '.' and '*'. In addition
a QML component is provided to make event connections available in QML.

Change-Id: Ie45422481a794b1b350347c383318857e5dc3f6d
Reviewed-by: Jarek Kobus <jaroslaw.kobus@qt.io>

1 files changed, 3 insertions, 5 deletions

diff --git a/examples/scxml/calculator-widgets/mainwindow.cpp b/examples/scxml/calculator-widgets/mainwindow.cpp
index eacafaa..d8c77f7 100644
--- a/examples/scxml/calculator-widgets/mainwindow.cpp
+++ b/examples/scxml/calculator-widgets/mainwindow.cpp
@@ -115,11 +115,9 @@ MainWindow::MainWindow(QScxmlStateMachine *machine, QWidget *parent) :
         m_machine->submitEvent("C");
     });
 
-    connect(m_machine, &QScxmlStateMachine::eventOccurred, [this](const QScxmlEvent &event) {
-        if (event.name() == QLatin1String("updateDisplay")) {
-            const QString display = event.data().toMap().value("display").toString();
-            ui->display->setText(display);
-        }
+    m_machine->connectToEvent(QLatin1String("updateDisplay"), this, [this](const QScxmlEvent &event) {
+        const QString display = event.data().toMap().value("display").toString();
+        ui->display->setText(display);
     });
 }