diff --git a/examples/common/OpenGLWidget.cpp b/examples/common/OpenGLWidget.cpp
index 15f16852..a83fa70d 100644
--- a/examples/common/OpenGLWidget.cpp
+++ b/examples/common/OpenGLWidget.cpp
@@ -7,6 +7,9 @@
 using namespace PolyVox;
 using namespace std;
 
+////////////////////////////////////////////////////////////////////////////////
+// Public functions
+////////////////////////////////////////////////////////////////////////////////
 OpenGLWidget::OpenGLWidget(QWidget *parent)
 	:QGLWidget(parent)
 	,m_viewableRegion(Region(0, 0, 0, 255, 255, 255))
@@ -15,17 +18,41 @@ OpenGLWidget::OpenGLWidget(QWidget *parent)
 {
 }
 
+void OpenGLWidget::setShader(QSharedPointer<QGLShaderProgram> shader)
+{
+	mShader = shader;
+}
+
 void OpenGLWidget::setViewableRegion(Region viewableRegion)
 {
 	m_viewableRegion = viewableRegion;
 	setupWorldToCameraMatrix();
 }
 
-void OpenGLWidget::setShader(QSharedPointer<QGLShaderProgram> shader)
+void OpenGLWidget::mousePressEvent(QMouseEvent* event)
 {
-	mShader = shader;
+	m_CurrentMousePos = event->pos();
+	m_LastFrameMousePos = m_CurrentMousePos;
+
+	update();
 }
 
+void OpenGLWidget::mouseMoveEvent(QMouseEvent* event)
+{
+	m_CurrentMousePos = event->pos();
+	QPoint diff = m_CurrentMousePos - m_LastFrameMousePos;
+	m_xRotation += diff.x();
+	m_yRotation += diff.y();
+	m_LastFrameMousePos = m_CurrentMousePos;
+
+	setupWorldToCameraMatrix();
+
+	update();
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Protected functions
+////////////////////////////////////////////////////////////////////////////////
 void OpenGLWidget::initializeGL()
 {
 	GLenum err = glewInit();
@@ -160,27 +187,9 @@ void OpenGLWidget::paintGL()
 	}
 }
 
-void OpenGLWidget::mousePressEvent(QMouseEvent* event)
-{
-	m_CurrentMousePos = event->pos();
-	m_LastFrameMousePos = m_CurrentMousePos;
-
-	update();
-}
-
-void OpenGLWidget::mouseMoveEvent(QMouseEvent* event)
-{
-	m_CurrentMousePos = event->pos();
-	QPoint diff = m_CurrentMousePos - m_LastFrameMousePos;
-	m_xRotation += diff.x();
-	m_yRotation += diff.y();
-	m_LastFrameMousePos = m_CurrentMousePos;
-
-	setupWorldToCameraMatrix();
-
-	update();
-}
-
+////////////////////////////////////////////////////////////////////////////////
+// Private functions
+////////////////////////////////////////////////////////////////////////////////
 void OpenGLWidget::setupWorldToCameraMatrix()
 {
 	QVector3D lowerCorner(m_viewableRegion.getLowerX(), m_viewableRegion.getLowerY(), m_viewableRegion.getLowerZ());
diff --git a/examples/common/OpenGLWidget.h b/examples/common/OpenGLWidget.h
index a56ed7f1..af660909 100644
--- a/examples/common/OpenGLWidget.h
+++ b/examples/common/OpenGLWidget.h
@@ -52,17 +52,6 @@ public:
 	// Constructor
 	OpenGLWidget(QWidget *parent);
 
-	// Mouse handling
-	void mouseMoveEvent(QMouseEvent* event);
-	void mousePressEvent(QMouseEvent* event);
-
-	// The viewable region can be adjusted so that this example framework can be used for different volume sizes.
-	void setViewableRegion(PolyVox::Region viewableRegion);
-
-	// For our purposes we use a single shader for the whole volume, and
-	// this example framework is only meant to show a single volume at a time
-	void setShader(QSharedPointer<QGLShaderProgram> shader);
-
 	// Convert a SurfaceMesh to OpenGL index/vertex buffers. Inlined because it's templatised.
 	template <typename MeshType>
 	void addMesh(const MeshType& surfaceMesh, const PolyVox::Vector3DInt32& translation = PolyVox::Vector3DInt32(0, 0, 0), float scale = 1.0f)
@@ -110,6 +99,17 @@ public:
 		mMeshData.push_back(meshData);
 	}
 
+	// For our purposes we use a single shader for the whole volume, and
+	// this example framework is only meant to show a single volume at a time
+	void setShader(QSharedPointer<QGLShaderProgram> shader);
+
+	// The viewable region can be adjusted so that this example framework can be used for different volume sizes.
+	void setViewableRegion(PolyVox::Region viewableRegion);
+
+	// Mouse handling
+	void mouseMoveEvent(QMouseEvent* event);
+	void mousePressEvent(QMouseEvent* event);
+
 protected:
 
 	// Qt OpenGL functions