Polish code of some opengl examples

Change-Id: If24ae1845176fc525cf6a239a5079f4802f8df3f
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>

1 files changed, 10 insertions, 14 deletions

diff --git a/examples/opengl/cube/mainwidget.h b/examples/opengl/cube/mainwidget.h
index bd30ea93a0..cebfb30999 100644
--- a/examples/opengl/cube/mainwidget.h
+++ b/examples/opengl/cube/mainwidget.h
@@ -41,30 +41,26 @@
 #ifndef MAINWIDGET_H
 #define MAINWIDGET_H
 
-#include <QtOpenGL/QGLWidget>
-#include <QtOpenGL/QGLFunctions>
+#include "geometryengine.h"
 
+#include <QGLWidget>
+#include <QGLFunctions>
 #include <QMatrix4x4>
 #include <QQuaternion>
 #include <QVector2D>
+#include <QBasicTimer>
+#include <QGLShaderProgram>
 
-QT_BEGIN_NAMESPACE
-class QBasicTimer;
-class QGLShaderProgram;
-QT_END_NAMESPACE
 
 class GeometryEngine;
 
 class MainWidget : public QGLWidget, protected QGLFunctions
 {
     Q_OBJECT
+
 public:
     explicit MainWidget(QWidget *parent = 0);
-    virtual ~MainWidget();
-
-signals:
-
-public slots:
+    ~MainWidget();
 
 protected:
     void mousePressEvent(QMouseEvent *e);
@@ -79,9 +75,9 @@ protected:
     void initTextures();
 
 private:
-    QBasicTimer *timer;
-    QGLShaderProgram *program;
-    GeometryEngine *geometries;
+    QBasicTimer timer;
+    QGLShaderProgram program;
+    GeometryEngine geometries;
 
     GLuint texture;