5 files changed, 8 insertions, 10 deletions
diff --git a/examples/widgets/graphicsview/chip/chip.cpp b/examples/widgets/graphicsview/chip/chip.cpp
index 3d2bbdfcef..25f4ccc2e9 100644
--- a/examples/widgets/graphicsview/chip/chip.cpp
+++ b/examples/widgets/graphicsview/chip/chip.cpp
@@ -50,7 +50,9 @@
 
 #include "chip.h"
 
-#include <QtWidgets>
+#include <QGraphicsSceneMouseEvent>
+#include <QPainter>
+#include <QStyleOptionGraphicsItem>
 
 Chip::Chip(const QColor &color, int x, int y)
 {
diff --git a/examples/widgets/graphicsview/chip/mainwindow.cpp b/examples/widgets/graphicsview/chip/mainwindow.cpp
index b6e1313eb2..f2f89c8722 100644
--- a/examples/widgets/graphicsview/chip/mainwindow.cpp
+++ b/examples/widgets/graphicsview/chip/mainwindow.cpp
@@ -56,13 +56,11 @@
 #include <QSplitter>
 
 MainWindow::MainWindow(QWidget *parent)
-    : QWidget(parent)
+    : QWidget(parent), scene(new QGraphicsScene(this))
+    , h1Splitter(new QSplitter(this)), h2Splitter(new QSplitter(this))
 {
     populateScene();
 
-    h1Splitter = new QSplitter;
-    h2Splitter = new QSplitter;
-
     QSplitter *vSplitter = new QSplitter;
     vSplitter->setOrientation(Qt::Vertical);
     vSplitter->addWidget(h1Splitter);
@@ -93,8 +91,6 @@ MainWindow::MainWindow(QWidget *parent)
 
 void MainWindow::populateScene()
 {
-    scene = new QGraphicsScene(this);
-
     QImage image(":/qt4logo.png");
 
     // Populate scene
diff --git a/examples/widgets/graphicsview/chip/mainwindow.h b/examples/widgets/graphicsview/chip/mainwindow.h
index 9417d12d7a..3f91b2efb4 100644
--- a/examples/widgets/graphicsview/chip/mainwindow.h
+++ b/examples/widgets/graphicsview/chip/mainwindow.h
@@ -62,7 +62,7 @@ class MainWindow : public QWidget
 {
     Q_OBJECT
 public:
-    MainWindow(QWidget *parent = 0);
+    MainWindow(QWidget *parent = nullptr);
 
 private:
     void setupMatrix();
diff --git a/examples/widgets/graphicsview/chip/view.cpp b/examples/widgets/graphicsview/chip/view.cpp
index 7d5fd699a4..21998dc2df 100644
--- a/examples/widgets/graphicsview/chip/view.cpp
+++ b/examples/widgets/graphicsview/chip/view.cpp
@@ -62,7 +62,7 @@
 #else
 #include <QtWidgets>
 #endif
-#include <qmath.h>
+#include <QtMath>
 
 #if QT_CONFIG(wheelevent)
 void GraphicsView::wheelEvent(QWheelEvent *e)
diff --git a/examples/widgets/graphicsview/chip/view.h b/examples/widgets/graphicsview/chip/view.h
index 89b2e813f1..ea7bd414f5 100644
--- a/examples/widgets/graphicsview/chip/view.h
+++ b/examples/widgets/graphicsview/chip/view.h
@@ -81,7 +81,7 @@ class View : public QFrame
 {
     Q_OBJECT
 public:
-    explicit View(const QString &name, QWidget *parent = 0);
+    explicit View(const QString &name, QWidget *parent = nullptr);
 
     QGraphicsView *view() const;