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

Pick-to: 6.2
Change-Id: Iebce1b810ce00f29395207d93303363b3b71e52e
Reviewed-by: Cristian Maureira-Fredes <[email protected]>
Reviewed-by: Ulf Hermann <[email protected]>

1 files changed, 2 insertions, 24 deletions

diff --git a/examples/qml/referenceexamples/signal/person.cpp b/examples/qml/referenceexamples/signal/person.cpp
index 0603644108..4e52da76c8 100644
--- a/examples/qml/referenceexamples/signal/person.cpp
+++ b/examples/qml/referenceexamples/signal/person.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2017 The Qt Company Ltd.
+** Copyright (C) 2021 The Qt Company Ltd.
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the examples of the Qt Toolkit.
@@ -47,12 +47,8 @@
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/
-#include "person.h"
 
-ShoeDescription::ShoeDescription(QObject *parent)
-: QObject(parent), m_size(0), m_price(0)
-{
-}
+#include "person.h"
 
 int ShoeDescription::size() const
 {
@@ -94,11 +90,6 @@ void ShoeDescription::setPrice(qreal p)
     m_price = p;
 }
 
-Person::Person(QObject *parent)
-: QObject(parent)
-{
-}
-
 QString Person::name() const
 {
     return m_name;
@@ -113,16 +104,3 @@ ShoeDescription *Person::shoe()
 {
     return &m_shoe;
 }
-
-
-Boy::Boy(QObject * parent)
-: Person(parent)
-{
-}
-
-
-Girl::Girl(QObject * parent)
-: Person(parent)
-{
-}
-