Added cubewidget.cpp

A1/hellocube/cubewidget.cpp

+#include "cubewidget.h"
+
+#include <QOpenGLFunctions>
+
+CubeWidget::CubeWidget(QWidget *parent)
+    : QGLWidget(QGLFormat(QGL::SampleBuffers), parent)
+{
+
+}
+
+QSize CubeWidget::minimumSizeHint() const
+{
+    return QSize(50, 50);
+}
+
+QSize CubeWidget::sizeHint() const
+{
+    return QSize(600, 400);
+}
+
+void CubeWidget::initializeGL ()
+{
+
+    glEnable(GL_DEPTH_TEST);
+/*    glEnable(GL_CULL_FACE);
+    glShadeModel(GL_SMOOTH);
+    glEnable(GL_MULTISAMPLE);
+    glEnable(GL_LIGHTING);
+    glEnable(GL_LIGHT0);
+    static GLfloat lightPosition[4] = { 0.5, 0.0, 2.0, 1.0 };
+    glLightfv(GL_LIGHT0, GL_POSITION, lightPosition);
+*/
+
+}
+
+
+void CubeWidget::paintGL ( ) {}
+void CubeWidget::resizeGL(int width , int height ) {}
+void CubeWidget::mousePressEvent(QMouseEvent *event ) {}
+void CubeWidget::mouseMoveEvent(QMouseEvent *event ) {}
+void CubeWidget::wheelEvent(QWheelEvent *event ) {}

A1/hellocube/cubewidget.h

+#ifndef CUBEWIDGET_H
+#define CUBEWIDGET_H
+
+#include <QtGui>
+#include <QtOpenGL>
+#include <QOpenGLFunctions>
+
+
+
+class CubeWidget : public QGLWidget
+{
+protected :
+    void initializeGL ( ) ;
+    void paintGL ( ) ;
+    void resizeGL(int width , int height ) ;
+    void mousePressEvent(QMouseEvent *event ) ;
+    void mouseMoveEvent(QMouseEvent *event ) ;
+    void wheelEvent(QWheelEvent *event ) ;
+
+public:
+    CubeWidget(QWidget *parent = 0);
+
+    QSize minimumSizeHint() const;
+    QSize sizeHint() const;
+};
+
+#endif // CUBEWIDGET_H

A1/hellocube/hellocube.pro

@@ -4,7 +4,7 @@
 #
 #-------------------------------------------------
 
-QT       += core gui
+QT       += core gui opengl
 
 greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
 
@@ -12,9 +12,11 @@ TARGET = hellocube
 TEMPLATE = app
 
 SOURCES += main.cpp\
-        mainwindow.cpp
+        mainwindow.cpp \
+    cubewidget.cpp
 
-HEADERS  += mainwindow.h
+HEADERS  += mainwindow.h \
+    cubewidget.h
 
 RESOURCES += \
     hellocube.qrc

A1/hellocube/hellocube.pro.user

 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE QtCreatorProject>
-<!-- Written by QtCreator 3.5.1, 2015-10-21T15:50:15. -->
+<!-- Written by QtCreator 3.5.1, 2015-10-21T20:58:23. -->
 <qtcreator>
  <data>
   <variable>EnvironmentId</variable>

A1/hellocube/main.cpp

 #include "mainwindow.h"
 #include <QApplication>
 
+
 int main(int argc, char *argv[])
 {
     QApplication a(argc, argv);

A1/hellocube/mainwindow.cpp

@@ -78,6 +78,11 @@ MainWindow::MainWindow(QWidget *parent)
     statusBar->showMessage("Hello");
     setStatusBar(statusBar);
 
+    //Main Widget
+    mainWidget = new CubeWidget(this);
+    setCentralWidget(mainWidget);
+
+
 
 }
 

A1/hellocube/mainwindow.h

@@ -11,6 +11,8 @@
 #include <QToolBar>
 #include <QStatusBar>
 
+#include <cubewidget.h>
+
 
 class MainWindow : public QMainWindow
 {
@@ -36,6 +38,8 @@ private:
     QToolBar *toolBar;
     QStatusBar *statusBar;
 
+    CubeWidget *mainWidget;
+
 
 public:
     MainWindow(QWidget *parent = 0);