added const where appropriate

src/graphicsEngine/BGLScenePainter.cpp

@@ -19,16 +19,16 @@ BGLScenePainter::~BGLScenePainter()
     // TODO(wiebel): Auto-generated destructor stub
 }
 
-void BGLScenePainter::initGL()
+void BGLScenePainter::initGL() const
 {
     GLenum error = glGetError();
     assert( error == GL_NO_ERROR );
 
     // Set clear color
-    glClearColor( 0, 0, 0, 0 );
+    glClearColor( 1., 1., 1., 0 );
 }
 
-void BGLScenePainter::paintGL()
+void BGLScenePainter::paintGL() const
 {
     glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
     glLoadIdentity();
@@ -49,7 +49,7 @@ void BGLScenePainter::paintGL()
     glEnd();
 }
 
-void BGLScenePainter::resizeGL( int width, int height )
+void BGLScenePainter::resizeGL( int width, int height ) const
 {
     glViewport( 0, 0, width, height );
 }

src/graphicsEngine/BGLScenePainter.h

@@ -20,18 +20,18 @@ class BGLScenePainter
         /**
          * Initialize the OpenGL context, e.g., set main transformation matrices.
          */
-        virtual void initGL();
+        virtual void initGL() const;
 
         /**
          * Do the OpenGL painting in every frame.
          */
-        virtual void paintGL();
+        virtual void paintGL() const;
 
         /**
          * Called, when the window is resized and re-initialization of the
          * window parameters and matrices may need to be done.
          */
-        virtual void resizeGL( int width, int height );
+        virtual void resizeGL( int width, int height ) const;
 };
 
 

src/gui/BGUI.cpp

@@ -6,12 +6,6 @@
 
 #include "BGUI.h"
 
-BGUI::BGUI()
-{
-    // TODO(wiebel): Auto-generated constructor stub
-}
-
 BGUI::~BGUI()
 {
-    // TODO(wiebel): Auto-generated destructor stub
 }

src/gui/BGUI.h

@@ -14,7 +14,6 @@
 class BGUI
 {
     public:
-        BGUI();
         virtual ~BGUI();
 
         /**

src/gui/qt4/BMainWindow.cpp

@@ -144,5 +144,5 @@ void BMainWindow::setupGUI( QMainWindow *MainWindow )
 
 void BMainWindow::setEnabled( bool enable )
 {
-    // NOTE implement here
+    // TODO(wiebel) implement here
 }

src/gui/qt4/BQtGLWidget.h

@@ -32,6 +32,9 @@ class BQtGLWidget: public QGLWidget
         /**
          * This virtual function is called whenever the widget has been
          * resized. The new size is passed in width and height.
+         *
+         * \note It seem that the function is not called if declared const, so it
+         * is not const.
          */
         void resizeGL( int width, int height );
 
@@ -40,12 +43,18 @@ class BQtGLWidget: public QGLWidget
          * This function is called once before the first
          * call to paintGL() or resizeGL(), and then once whenever
          * the widget has been assigned a new QGLContext.
+         *
+         * \note It seem that the function is not called if declared const, so it
+         * is not const.
          */
         void initializeGL();
 
     private:
         /**
          * This function is called whenever the widget needs to be painted.
+         *
+         * \note It seem that the function is not called if declared const, so it
+         * is not const.
          */
         void paintGL();
 

src/gui/qt4/BQtPipelineBrowser.cpp

@@ -17,7 +17,7 @@ BQtPipelineBrowser::BQtPipelineBrowser()
 
 BQtPipelineBrowser::~BQtPipelineBrowser()
 {
-    // NOTE Auto-generated destructor stub
+    // TODO(wiebel) Auto-generated destructor stub
 }
 
 QSize BQtPipelineBrowser::sizeHint() const