Polish the QML reference examples

- Use member initialization, which allows for using
  constructors from the base classes
- Use qsizetype for indexes
- Use qInfo() instead of qWarning() for printing
- Add spaces/fix formatting

Change-Id: Iebce1b810ce00f29395207d93303363b3b71e52e
Reviewed-by: Cristian Maureira-Fredes <cristian.maureira-fredes@qt.io>
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
(cherry picked from commit c442ed4d65b0319e4abd7a931cfb2f1f72842b84)
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>

1 files changed, 2 insertions, 3 deletions

diff --git a/examples/qml/referenceexamples/binding/happybirthdaysong.cpp b/examples/qml/referenceexamples/binding/happybirthdaysong.cpp
index 5f8e6d696e..2722b65e06 100644
--- a/examples/qml/referenceexamples/binding/happybirthdaysong.cpp
+++ b/examples/qml/referenceexamples/binding/happybirthdaysong.cpp
@@ -50,10 +50,9 @@
 #include "happybirthdaysong.h"
 #include <QTimer>
 
-HappyBirthdaySong::HappyBirthdaySong(QObject *parent)
-: QObject(parent), m_line(-1)
+HappyBirthdaySong::HappyBirthdaySong(QObject *parent) :
+    QObject(parent)
 {
-    setName(QString());
     auto *timer = new QTimer(this);
     QObject::connect(timer, &QTimer::timeout, this, &HappyBirthdaySong::advance);
     timer->start(1000);