diff --git a/docs/layermanagement.txt b/docs/layermanagement.txt
--- a/docs/layermanagement.txt
+++ b/docs/layermanagement.txt
@@ -109,7 +109,7 @@
 
   Code snippet:
 
-    bool MarbleTestPlugin::render( GeoPainter *painter, ViewportParams *viewport, const QString& renderPos, GeoSceneLayer * layer )
+    bool MarbleTestPlugin::render(GeoPainter *painter, ViewportParams *viewport, RenderPosition renderPos, GeoSceneLayer * layer)
     {
     painter->autoMapQuality();
     painter->setPen( Qt::red );
diff --git a/docs/paintingmaps.txt b/docs/paintingmaps.txt
--- a/docs/paintingmaps.txt
+++ b/docs/paintingmaps.txt
@@ -68,7 +68,7 @@
 
   Code snippet:
 
-    bool MarbleTestPlugin::render( GeoPainter *painter, ViewportParams *viewport, const QString& renderPos, GeoSceneLayer * layer )
+    bool MarbleTestPlugin::render(GeoPainter *painter, ViewportParams *viewport, RenderPosition renderPos, GeoSceneLayer * layer)
     {
     painter->autoMapQuality();
     painter->setPen( Qt::red );
diff --git a/examples/cpp/custom-layers/main.cpp b/examples/cpp/custom-layers/main.cpp
--- a/examples/cpp/custom-layers/main.cpp
+++ b/examples/cpp/custom-layers/main.cpp
@@ -29,11 +29,11 @@
     MyPaintLayer(MarbleWidget* widget);
 
     // Implemented from LayerInterface
-    virtual QStringList renderPosition() const;
+    RenderPositions renderPositions() const override;
 
     // Implemented from LayerInterface
-    virtual bool render( GeoPainter *painter, ViewportParams *viewport,
-       const QString& renderPos = "NONE", GeoSceneLayer * layer = 0 );
+    bool render(GeoPainter *painter, ViewportParams *viewport,
+                RenderPosition renderPos, GeoSceneLayer *layer) override;
 
     // Overriding QObject
     virtual bool eventFilter(QObject *obj, QEvent *event);
@@ -43,23 +43,26 @@
 private:
     MarbleWidget* m_widget;
 
+    QHash<RenderPosition, QString> m_renderPositions;
     int m_index;
 };
 
 MyPaintLayer::MyPaintLayer(MarbleWidget* widget) : m_widget(widget), m_index(0)
 {
-    // nothing to do
-}
-
-QStringList MyPaintLayer::renderPosition() const
-{
     // We will paint in exactly one of the following layers.
     // The current one can be changed by pressing the '+' key
-    QStringList layers = QStringList() << "SURFACE" << "HOVERS_ABOVE_SURFACE";
-    layers << "ORBIT" << "USER_TOOLS" << "STARS";
+    m_renderPositions.insert(SurfaceRenderPosition, "SURFACE");
+    m_renderPositions.insert(HoversAboveSurfaceRenderPosition, "HOVERS_ABOVE_SURFACE");
+    m_renderPositions.insert(OrbitRenderPosition, "ORBIT");
+    m_renderPositions.insert(UserToolsRenderPosition, "USER_TOOLS");
+    m_renderPositions.insert(StarsRenderPosition, "STARS");
 
-    int index = m_index % layers.size();
-    return QStringList() << layers.at(index);
+}
+
+RenderPositions MyPaintLayer::renderPositions() const
+{
+    int index = m_index % m_renderPositions.size();
+    return m_renderPositions.keys().at(index);
 }
 
 bool MyPaintLayer::eventFilter(QObject *obj, QEvent *event)
@@ -88,15 +91,15 @@
 				base.latitude(deg) + dist * cos(angle), 0.0, deg);
 }
 
-bool MyPaintLayer::render( GeoPainter *painter, ViewportParams *viewport,
-    const QString& renderPos, GeoSceneLayer * layer )
+bool MyPaintLayer::render(GeoPainter *painter, ViewportParams *viewport,
+                          RenderPosition renderPos, GeoSceneLayer * layer)
 {
     Q_UNUSED(viewport)
     Q_UNUSED(renderPos)
     Q_UNUSED(layer)
 
     // Have window title reflect the current paint layer
-    m_widget->setWindowTitle(renderPosition().first());
+    m_widget->setWindowTitle(m_renderPositions.value(renderPos));
     GeoDataCoordinates home(8.4, 48.0, 0.0, GeoDataCoordinates::Degree);
     QTime now = QTime::currentTime();
 
diff --git a/examples/cpp/squad-interpolation/squad-interpolation.h b/examples/cpp/squad-interpolation/squad-interpolation.h
--- a/examples/cpp/squad-interpolation/squad-interpolation.h
+++ b/examples/cpp/squad-interpolation/squad-interpolation.h
@@ -31,9 +31,9 @@
     explicit MyPaintLayer( MarbleWidget* widget );
 
     // LayerInterface
-    QStringList renderPosition() const;
-    bool render( GeoPainter *painter, ViewportParams *viewport,
-       const QString& renderPos = "NONE", GeoSceneLayer * layer = 0 );
+    RenderPositions renderPositions() const override;
+    bool render(GeoPainter *painter, ViewportParams *viewport,
+                RenderPosition renderPos, GeoSceneLayer * layer) override;
     GeoDataLatLonBox center() const;
 
 private Q_SLOTS:
diff --git a/examples/cpp/squad-interpolation/squad-interpolation.cpp b/examples/cpp/squad-interpolation/squad-interpolation.cpp
--- a/examples/cpp/squad-interpolation/squad-interpolation.cpp
+++ b/examples/cpp/squad-interpolation/squad-interpolation.cpp
@@ -41,12 +41,12 @@
     addInterpolatedPoint();
 }
 
-QStringList MyPaintLayer::renderPosition() const
+RenderPositions MyPaintLayer::renderPositions() const
 {
-    return QStringList() << "USER_TOOLS";
+    return UserToolsRenderPosition;
 }
 
-bool MyPaintLayer::render ( GeoPainter *painter, ViewportParams *viewport, const QString &, GeoSceneLayer * )
+bool MyPaintLayer::render(GeoPainter *painter, ViewportParams *viewport, RenderPosition, GeoSceneLayer *)
 {
     if ( m_index < 20 ) {
         // Gray dotted line connects all current cities
diff --git a/src/bindings/python/sip/AbstractFloatItem.sip b/src/bindings/python/sip/AbstractFloatItem.sip
--- a/src/bindings/python/sip/AbstractFloatItem.sip
+++ b/src/bindings/python/sip/AbstractFloatItem.sip
@@ -34,7 +34,7 @@
     void                    setFont (const QFont& font);
     void                    setPositionLocked (bool lock);
     virtual QString         renderPolicy () const;
-    virtual QStringList     renderPosition () const;
+    RenderPositions         renderPosition () const override;
 
 protected:
     bool                    eventFilter (QObject* object, QEvent* e);
diff --git a/src/bindings/python/sip/LayerInterface.sip b/src/bindings/python/sip/LayerInterface.sip
--- a/src/bindings/python/sip/LayerInterface.sip
+++ b/src/bindings/python/sip/LayerInterface.sip
@@ -27,7 +27,7 @@
 
 public:
     virtual ~LayerInterface ();
-    virtual QStringList     renderPosition () const=0;
+    virtual RenderPositions renderPositions() const = 0;
     virtual qreal           zValue () const;
     virtual QString         runtimeTrace () const;
     virtual bool            render (Marble::GeoPainter* painter, Marble::ViewportParams* viewport, const QString& renderPos, Marble::GeoSceneLayer* layer)=0;
diff --git a/src/bindings/python/sip/RenderPluginInterface.sip b/src/bindings/python/sip/RenderPluginInterface.sip
--- a/src/bindings/python/sip/RenderPluginInterface.sip
+++ b/src/bindings/python/sip/RenderPluginInterface.sip
@@ -31,7 +31,7 @@
 public:
     virtual QStringList     backendTypes () const=0;
     virtual QString         renderPolicy () const=0;
-    virtual QStringList     renderPosition () const=0;
+    virtual RenderPositions renderPositions() const = 0;
     virtual bool            render (Marble::GeoPainter* painter, Marble::ViewportParams* viewport, const QString& renderPos = "NONE", Marble::GeoSceneLayer* layer = 0)=0;
 
 };
diff --git a/src/lib/marble/AbstractDataPlugin.h b/src/lib/marble/AbstractDataPlugin.h
--- a/src/lib/marble/AbstractDataPlugin.h
+++ b/src/lib/marble/AbstractDataPlugin.h
@@ -67,14 +67,14 @@
     /**
      * @brief Preferred level in the layer stack for the rendering
      */
-    QStringList renderPosition() const;
-    
+    RenderPositions renderPositions() const override;
+
     /**
      * @brief Renders the content provided by the plugin on the viewport.
      * @return @c true  Returns whether the rendering has been successful
      */
-    bool render( GeoPainter *painter, ViewportParams *viewport,
-                 const QString& renderPos = QLatin1String("NONE"), GeoSceneLayer * layer = 0 );
+    bool render(GeoPainter *painter, ViewportParams *viewport,
+                RenderPosition renderPos, GeoSceneLayer * layer) override;
 
     /**
      * @return The model associated with the plugin.
diff --git a/src/lib/marble/AbstractDataPlugin.cpp b/src/lib/marble/AbstractDataPlugin.cpp
--- a/src/lib/marble/AbstractDataPlugin.cpp
+++ b/src/lib/marble/AbstractDataPlugin.cpp
@@ -81,13 +81,13 @@
     return QString( "ALWAYS" );
 }
 
-QStringList AbstractDataPlugin::renderPosition() const
+RenderPositions AbstractDataPlugin::renderPositions() const
 {
-    return QStringList( "ALWAYS_ON_TOP" );
+    return AlwaysOnTopRenderPosition;
 }
 
-bool AbstractDataPlugin::render( GeoPainter *painter, ViewportParams *viewport,
-             const QString& renderPos, GeoSceneLayer * layer)
+bool AbstractDataPlugin::render(GeoPainter *painter, ViewportParams *viewport,
+                                RenderPosition renderPos, GeoSceneLayer *layer)
 {
     Q_UNUSED( renderPos );
     Q_UNUSED( layer );
diff --git a/src/lib/marble/AbstractFloatItem.h b/src/lib/marble/AbstractFloatItem.h
--- a/src/lib/marble/AbstractFloatItem.h
+++ b/src/lib/marble/AbstractFloatItem.h
@@ -85,18 +85,17 @@
      * @deprecated Do not override this method since it won't be called any longer.
      *             Override one of FrameGraphicsItem's paint methods instead.
      */
-    MARBLE_DEPRECATED( bool render( GeoPainter *painter, ViewportParams *viewport,
-                 const QString& renderPos = QLatin1String("FLOAT_ITEM"),
-                 GeoSceneLayer * layer = 0 ) override );
+    MARBLE_DEPRECATED(bool render(GeoPainter *painter, ViewportParams *viewport,
+                                  RenderPosition renderPos, GeoSceneLayer *layer) override);
 
     QString renderPolicy() const override;
 
     /**
      * @brief Returns the rendering position of this float item.
      * @deprecated The return value of method is ignored. The float item's rendering position
-     *             will always be "FLOAT_ITEM".
+     *             will always be FloatItemRenderPosition.
      */
-    MARBLE_DEPRECATED( QStringList renderPosition() const override );
+    MARBLE_DEPRECATED( RenderPositions renderPositions() const override );
 
     /**
      * @brief Set visibility of the float item
diff --git a/src/lib/marble/AbstractFloatItem.cpp b/src/lib/marble/AbstractFloatItem.cpp
--- a/src/lib/marble/AbstractFloatItem.cpp
+++ b/src/lib/marble/AbstractFloatItem.cpp
@@ -123,9 +123,9 @@
     return "ALWAYS";
 }
 
-QStringList AbstractFloatItem::renderPosition() const
+RenderPositions AbstractFloatItem::renderPositions() const
 {
-    return QStringList( "FLOAT_ITEM" );
+    return FloatItemRenderPosition;
 }
 
 void AbstractFloatItem::setVisible( bool visible )
@@ -202,8 +202,8 @@
     Q_UNUSED( e );
 }
 
-bool AbstractFloatItem::render( GeoPainter *painter, ViewportParams *viewport,
-             const QString& renderPos, GeoSceneLayer * layer )
+bool AbstractFloatItem::render(GeoPainter *painter, ViewportParams *viewport,
+                               RenderPosition renderPos, GeoSceneLayer *layer)
 {
     Q_UNUSED(painter)
     Q_UNUSED(viewport)
diff --git a/src/lib/marble/LayerInterface.h b/src/lib/marble/LayerInterface.h
--- a/src/lib/marble/LayerInterface.h
+++ b/src/lib/marble/LayerInterface.h
@@ -34,22 +34,10 @@
     /**
      * @brief Preferred level in the layer stack for the rendering
      *
-     * Gives a preferred level in the existing layer stack where
+     * Gives the preferred levels in the existing layer stack where
      * the render() method of this plugin should get executed.
-     *.
-     * Possible Values:
-     * "NONE"
-     * "STARS"
-     * "BEHIND_TARGET"
-     * "SURFACE"
-     * "HOVERS_ABOVE_SURFACE"
-     * "ATMOSPHERE"
-     * "ORBIT"
-     * "ALWAYS_ON_TOP"
-     * "FLOAT_ITEM"
-     * "USER_TOOLS"
      */
-    virtual QStringList renderPosition() const = 0;
+    virtual RenderPositions renderPositions() const = 0;
 
     /**
      * @brief Renders the content provided by the layer on the viewport.
@@ -59,8 +47,8 @@
      * @param layer  deprecated, always zero (NULL)
      * @return @c true  Returns whether the rendering has been successful
      */
-    virtual bool render( GeoPainter *painter, ViewportParams *viewport,
-       const QString &renderPos, GeoSceneLayer *layer ) = 0;
+    virtual bool render(GeoPainter *painter, ViewportParams *viewport,
+                        RenderPosition renderPosition, GeoSceneLayer *layer) = 0;
 
     /**
       * @brief Returns the z value of the layer (default: 0.0). If two layers are painted
diff --git a/src/lib/marble/LayerManager.cpp b/src/lib/marble/LayerManager.cpp
--- a/src/lib/marble/LayerManager.cpp
+++ b/src/lib/marble/LayerManager.cpp
@@ -126,22 +126,15 @@
     d->m_renderState = RenderState( "Marble" );
     const QTime totalTime = QTime::currentTime();
 
-    QStringList renderPositions;
-
-    if ( d->m_showBackground ) {
-        renderPositions << "STARS" << "BEHIND_TARGET";
-    }
-
-    renderPositions << "SURFACE" << "HOVERS_ABOVE_SURFACE" << "ATMOSPHERE"
-                    << "ORBIT" << "ALWAYS_ON_TOP" << "FLOAT_ITEM" << "USER_TOOLS";
+    RenderPosition renderPosition = d->m_showBackground ? FirstBackgroundRenderPosition : FirstObjectRenderPosition;
 
     QStringList traceList;
-    foreach( const auto& renderPosition, renderPositions ) {
+    while (renderPosition < EndRenderPosition) {
         QList<LayerInterface*> layers;
 
         // collect all RenderPlugins of current renderPosition
         foreach( auto *renderPlugin, d->m_renderPlugins ) {
-            if ( renderPlugin && renderPlugin->renderPosition().contains( renderPosition ) ) {
+            if (renderPlugin && renderPlugin->renderPositions().testFlag(renderPosition)) {
                 if ( renderPlugin->enabled() && renderPlugin->visible() ) {
                     if ( !renderPlugin->isInitialized() ) {
                         renderPlugin->initialize();
@@ -154,7 +147,7 @@
 
         // collect all internal LayerInterfaces of current renderPosition
         foreach( auto *layer, d->m_internalLayers ) {
-            if ( layer && layer->renderPosition().contains( renderPosition ) ) {
+            if (layer && layer->renderPositions().testFlag(renderPosition)) {
                 layers.push_back( layer );
             }
         }
@@ -173,6 +166,9 @@
             d->m_renderState.addChild( layer->renderState() );
             traceList.append( QString("%2 ms %3").arg( timer.elapsed(),3 ).arg( layer->runtimeTrace() ) );
         }
+
+        // next position
+        renderPosition = static_cast<RenderPosition>(renderPosition << 1);
     }
 
     if ( d->m_showRuntimeTrace ) {
diff --git a/src/lib/marble/MarbleGlobal.h b/src/lib/marble/MarbleGlobal.h
--- a/src/lib/marble/MarbleGlobal.h
+++ b/src/lib/marble/MarbleGlobal.h
@@ -182,6 +182,39 @@
 };
 
 /**
+ * @brief Positions in the order of rendering
+ * Values are ordered, from LSB matching what is rendered at the bottom to MSB matching what is rendered on top.
+ * This allows e.g. to loop over all positions like this:
+ * @code
+ * RenderPosition renderPosition = FirstBackgroundRenderPosition;
+ * while (renderPosition < EndRenderPosition) {
+ *     doFoo(renderPosition);
+ *     renderPosition = static_cast<RenderPosition>(renderPosition << 1);
+ * }
+ * @endcode
+ */
+enum RenderPosition {
+    NoRenderPosition =                  0,
+    // background positions:
+    StarsRenderPosition =              (1 << 0),
+    FirstBackgroundRenderPosition = StarsRenderPosition, ///< Helper value for iterating
+    BehindTargetRenderPosition =       (1 << 1),
+    // object positions: TODO: better word for "object"
+    SurfaceRenderPosition =            (1 << 2),
+    FirstObjectRenderPosition = SurfaceRenderPosition, ///< Helper value for iterating
+    HoversAboveSurfaceRenderPosition = (1 << 3),
+    AtmosphereRenderPosition =         (1 << 4),
+    OrbitRenderPosition =              (1 << 5),
+    AlwaysOnTopRenderPosition =        (1 << 6),
+    // screen positions:
+    FloatItemRenderPosition =          (1 << 7),
+    UserToolsRenderPosition =          (1 << 8),
+
+    EndRenderPosition =                (1 << 9) ///< Helper value for iterating, behind last existing position
+};
+Q_DECLARE_FLAGS(RenderPositions, RenderPosition)
+
+/**
  * @brief
  */
 enum RenderStatus {
diff --git a/src/lib/marble/MarbleMap.cpp b/src/lib/marble/MarbleMap.cpp
--- a/src/lib/marble/MarbleMap.cpp
+++ b/src/lib/marble/MarbleMap.cpp
@@ -84,10 +84,10 @@
     {
     }
 
-    virtual QStringList renderPosition() const { return QStringList() << "USER_TOOLS"; }
+    RenderPositions renderPositions() const override { return UserToolsRenderPosition; }
 
-    virtual bool render( GeoPainter *painter, ViewportParams *viewport,
-                         const QString &renderPos, GeoSceneLayer *layer )
+    bool render(GeoPainter *painter, ViewportParams *viewport,
+                RenderPosition renderPos, GeoSceneLayer *layer) override
     {
         Q_UNUSED( viewport );
         Q_UNUSED( renderPos );
diff --git a/src/lib/marble/MarbleWidget.cpp b/src/lib/marble/MarbleWidget.cpp
--- a/src/lib/marble/MarbleWidget.cpp
+++ b/src/lib/marble/MarbleWidget.cpp
@@ -57,10 +57,10 @@
     {
     }
 
-    virtual QStringList renderPosition() const { return QStringList() << "USER_TOOLS"; }
+    RenderPositions renderPositions() const override { return UserToolsRenderPosition; }
 
-    virtual bool render( GeoPainter *painter, ViewportParams *viewport,
-                         const QString &renderPos, GeoSceneLayer *layer )
+    bool render(GeoPainter *painter, ViewportParams *viewport,
+                RenderPosition renderPos, GeoSceneLayer *layer) override
     {
         Q_UNUSED( viewport );
         Q_UNUSED( renderPos );
diff --git a/src/lib/marble/layers/FloatItemsLayer.h b/src/lib/marble/layers/FloatItemsLayer.h
--- a/src/lib/marble/layers/FloatItemsLayer.h
+++ b/src/lib/marble/layers/FloatItemsLayer.h
@@ -33,10 +33,10 @@
  public:
     explicit FloatItemsLayer(QObject *parent = 0);
 
-    QStringList renderPosition() const override;
+    RenderPositions renderPositions() const override;
 
     bool render(GeoPainter *painter, ViewportParams *viewport,
-       const QString &renderPos = "NONE", GeoSceneLayer *layer = 0) override;
+                RenderPosition renderPos, GeoSceneLayer *layer) override;
 
     void addFloatItem(AbstractFloatItem *floatItem);
 
diff --git a/src/lib/marble/layers/FloatItemsLayer.cpp b/src/lib/marble/layers/FloatItemsLayer.cpp
--- a/src/lib/marble/layers/FloatItemsLayer.cpp
+++ b/src/lib/marble/layers/FloatItemsLayer.cpp
@@ -23,14 +23,14 @@
 {
 }
 
-QStringList FloatItemsLayer::renderPosition() const
+RenderPositions FloatItemsLayer::renderPositions() const
 {
-    return QStringList() << "FLOAT_ITEM";
+    return FloatItemRenderPosition;
 }
 
 bool FloatItemsLayer::render(GeoPainter *painter,
                              ViewportParams *viewport,
-                             const QString &renderPos,
+                             RenderPosition renderPos,
                              GeoSceneLayer *layer)
 {
     Q_UNUSED(renderPos)
diff --git a/src/lib/marble/layers/FogLayer.h b/src/lib/marble/layers/FogLayer.h
--- a/src/lib/marble/layers/FogLayer.h
+++ b/src/lib/marble/layers/FogLayer.h
@@ -22,11 +22,10 @@
 class FogLayer : public LayerInterface
 {
 public:
-    virtual QStringList renderPosition() const;
+    RenderPositions renderPositions() const override;
 
-    virtual bool render( GeoPainter *painter, ViewportParams *viewport,
-                         const QString& renderPos = QLatin1String("NONE"),
-                         GeoSceneLayer * layer = 0 );
+    bool render(GeoPainter *painter, ViewportParams *viewport,
+                RenderPosition renderPos, GeoSceneLayer *layer) override;
 
     RenderState renderState() const;
     virtual QString runtimeTrace() const { return "FogLayer"; }
diff --git a/src/lib/marble/layers/FogLayer.cpp b/src/lib/marble/layers/FogLayer.cpp
--- a/src/lib/marble/layers/FogLayer.cpp
+++ b/src/lib/marble/layers/FogLayer.cpp
@@ -18,15 +18,15 @@
 
 namespace Marble
 {
-    
-QStringList FogLayer::renderPosition() const
+
+RenderPositions FogLayer::renderPositions() const
 {
-    return QStringList() << "ATMOSPHERE";
+    return AtmosphereRenderPosition;
 }
 
 bool FogLayer::render( GeoPainter *painter,
                        ViewportParams *viewParams,
-                       const QString &renderPos,
+                       RenderPosition renderPos,
                        GeoSceneLayer *layer )
 {
     Q_UNUSED(renderPos)
diff --git a/src/lib/marble/layers/GeometryLayer.h b/src/lib/marble/layers/GeometryLayer.h
--- a/src/lib/marble/layers/GeometryLayer.h
+++ b/src/lib/marble/layers/GeometryLayer.h
@@ -38,11 +38,10 @@
     explicit GeometryLayer(const QAbstractItemModel *model, const StyleBuilder *styleBuilder);
     ~GeometryLayer();
 
-    virtual QStringList renderPosition() const;
+    RenderPositions renderPositions() const override;
 
-    virtual bool render( GeoPainter *painter, ViewportParams *viewport,
-                         const QString& renderPos = QLatin1String("NONE"),
-                         GeoSceneLayer * layer = 0 );
+    bool render(GeoPainter *painter, ViewportParams *viewport,
+                RenderPosition renderPos, GeoSceneLayer *layer) override;
 
     RenderState renderState() const;
 
diff --git a/src/lib/marble/layers/GeometryLayer.cpp b/src/lib/marble/layers/GeometryLayer.cpp
--- a/src/lib/marble/layers/GeometryLayer.cpp
+++ b/src/lib/marble/layers/GeometryLayer.cpp
@@ -107,14 +107,14 @@
     delete d;
 }
 
-QStringList GeometryLayer::renderPosition() const
+RenderPositions GeometryLayer::renderPositions() const
 {
-    return QStringList( "HOVERS_ABOVE_SURFACE" );
+    return HoversAboveSurfaceRenderPosition;
 }
 
 
-bool GeometryLayer::render( GeoPainter *painter, ViewportParams *viewport,
-                            const QString& renderPos, GeoSceneLayer * layer )
+bool GeometryLayer::render(GeoPainter *painter, ViewportParams *viewport,
+                           RenderPosition renderPos, GeoSceneLayer *layer)
 {
     Q_UNUSED( renderPos )
     Q_UNUSED( layer )
diff --git a/src/lib/marble/layers/GroundLayer.h b/src/lib/marble/layers/GroundLayer.h
--- a/src/lib/marble/layers/GroundLayer.h
+++ b/src/lib/marble/layers/GroundLayer.h
@@ -26,11 +26,10 @@
 
     ~GroundLayer();
 
-    virtual QStringList renderPosition() const;
+    RenderPositions renderPositions() const override;
 
-    virtual bool render( GeoPainter *painter, ViewportParams *viewport,
-                         const QString& renderPos = QLatin1String("NONE"),
-                         GeoSceneLayer * layer = 0 );
+    bool render(GeoPainter *painter, ViewportParams *viewport,
+                RenderPosition renderPos, GeoSceneLayer *layer) override;
 
     virtual qreal zValue() const;
 
diff --git a/src/lib/marble/layers/GroundLayer.cpp b/src/lib/marble/layers/GroundLayer.cpp
--- a/src/lib/marble/layers/GroundLayer.cpp
+++ b/src/lib/marble/layers/GroundLayer.cpp
@@ -25,15 +25,15 @@
 {
 }
 
-QStringList GroundLayer::renderPosition() const
+RenderPositions GroundLayer::renderPositions() const
 {
-    return QStringList() << "SURFACE";
+    return SurfaceRenderPosition;
 }
 
-bool GroundLayer::render( GeoPainter *painter,
-                              ViewportParams *viewParams,
-                              const QString &renderPos,
-                              GeoSceneLayer *layer )
+bool GroundLayer::render(GeoPainter *painter,
+                         ViewportParams *viewParams,
+                         RenderPosition renderPos,
+                         GeoSceneLayer *layer)
 {
     Q_UNUSED( renderPos )
     Q_UNUSED( layer )
diff --git a/src/lib/marble/layers/MarbleSplashLayer.h b/src/lib/marble/layers/MarbleSplashLayer.h
--- a/src/lib/marble/layers/MarbleSplashLayer.h
+++ b/src/lib/marble/layers/MarbleSplashLayer.h
@@ -22,11 +22,10 @@
 public:
     MarbleSplashLayer();
 
-    virtual QStringList renderPosition() const;
+    RenderPositions renderPositions() const override;
 
-    virtual bool render( GeoPainter *painter, ViewportParams *viewport,
-                         const QString &renderPos = QLatin1String("SURFACE"),
-                         GeoSceneLayer *layer = 0 );
+    bool render(GeoPainter *painter, ViewportParams *viewport,
+                RenderPosition renderPos = SurfaceRenderPosition, GeoSceneLayer *layer = nullptr) override;
 
     RenderState renderState() const;
 
diff --git a/src/lib/marble/layers/MarbleSplashLayer.cpp b/src/lib/marble/layers/MarbleSplashLayer.cpp
--- a/src/lib/marble/layers/MarbleSplashLayer.cpp
+++ b/src/lib/marble/layers/MarbleSplashLayer.cpp
@@ -26,13 +26,13 @@
 {
 }
 
-QStringList MarbleSplashLayer::renderPosition() const
+RenderPositions MarbleSplashLayer::renderPositions() const
 {
-    return QStringList() << "SURFACE";
+    return SurfaceRenderPosition;
 }
 
-bool MarbleSplashLayer::render( GeoPainter *painter, ViewportParams *viewport,
-                                const QString &renderPos, GeoSceneLayer *layer )
+bool MarbleSplashLayer::render(GeoPainter *painter, ViewportParams *viewport,
+                               RenderPosition renderPos, GeoSceneLayer *layer)
 {
     Q_UNUSED( renderPos );
     Q_UNUSED( layer );
diff --git a/src/lib/marble/layers/PlacemarkLayer.h b/src/lib/marble/layers/PlacemarkLayer.h
--- a/src/lib/marble/layers/PlacemarkLayer.h
+++ b/src/lib/marble/layers/PlacemarkLayer.h
@@ -54,7 +54,7 @@
     /**
      * @reimp
      */
-    QStringList renderPosition() const;
+    RenderPositions renderPositions() const override;
 
     /**
      * @reimp
@@ -64,9 +64,8 @@
     /**
      * @reimp
      */
-    bool render( GeoPainter *painter, ViewportParams *viewport,
-                 const QString &renderPos = QLatin1String("NONE"),
-                 GeoSceneLayer *layer = 0 );
+    bool render(GeoPainter *painter, ViewportParams *viewport,
+                RenderPosition renderPos, GeoSceneLayer *layer) override;
 
     RenderState renderState() const;
 
diff --git a/src/lib/marble/layers/PlacemarkLayer.cpp b/src/lib/marble/layers/PlacemarkLayer.cpp
--- a/src/lib/marble/layers/PlacemarkLayer.cpp
+++ b/src/lib/marble/layers/PlacemarkLayer.cpp
@@ -44,18 +44,18 @@
 {
 }
 
-QStringList PlacemarkLayer::renderPosition() const
+RenderPositions PlacemarkLayer::renderPositions() const
 {
-    return QStringList() << "HOVERS_ABOVE_SURFACE";
+    return HoversAboveSurfaceRenderPosition;
 }
 
 qreal PlacemarkLayer::zValue() const
 {
     return 2.0;
 }
 
-bool PlacemarkLayer::render( GeoPainter *geoPainter, ViewportParams *viewport,
-                               const QString &renderPos, GeoSceneLayer *layer )
+bool PlacemarkLayer::render(GeoPainter *geoPainter, ViewportParams *viewport,
+                            RenderPosition renderPos, GeoSceneLayer *layer)
 {
     Q_UNUSED( renderPos )
     Q_UNUSED( layer )
diff --git a/src/lib/marble/layers/PopupLayer.h b/src/lib/marble/layers/PopupLayer.h
--- a/src/lib/marble/layers/PopupLayer.h
+++ b/src/lib/marble/layers/PopupLayer.h
@@ -40,9 +40,9 @@
     explicit PopupLayer( MarbleWidget *widget, QObject* parent = 0 );
     ~PopupLayer();
 
-    QStringList renderPosition() const;
-    bool render( GeoPainter *painter, ViewportParams *viewport,
-                 const QString &, GeoSceneLayer * );
+    RenderPositions renderPositions() const override;
+    bool render(GeoPainter *painter, ViewportParams *viewport,
+                RenderPosition, GeoSceneLayer *) override;
     virtual bool eventFilter( QObject *, QEvent * );
     qreal zValue() const;
 
diff --git a/src/lib/marble/layers/PopupLayer.cpp b/src/lib/marble/layers/PopupLayer.cpp
--- a/src/lib/marble/layers/PopupLayer.cpp
+++ b/src/lib/marble/layers/PopupLayer.cpp
@@ -78,13 +78,13 @@
     delete d;
 }
 
-QStringList PopupLayer::renderPosition() const
+RenderPositions PopupLayer::renderPositions() const
 {
-    return QStringList( "ALWAYS_ON_TOP" );
+    return AlwaysOnTopRenderPosition;
 }
 
-bool PopupLayer::render( GeoPainter *painter, ViewportParams *viewport,
-                                const QString&, GeoSceneLayer* )
+bool PopupLayer::render(GeoPainter *painter, ViewportParams *viewport,
+                        RenderPosition, GeoSceneLayer*)
 {
     if ( visible() ) {
         d->setAppropriateSize( viewport );
diff --git a/src/lib/marble/layers/TextureLayer.h b/src/lib/marble/layers/TextureLayer.h
--- a/src/lib/marble/layers/TextureLayer.h
+++ b/src/lib/marble/layers/TextureLayer.h
@@ -45,7 +45,7 @@
 
     ~TextureLayer();
 
-    QStringList renderPosition() const;
+    RenderPositions renderPositions() const override;
 
     void addSeaDocument( const GeoDataDocument *seaDocument );
 
@@ -93,9 +93,8 @@
 
     virtual QString runtimeTrace() const;
 
-    virtual bool render( GeoPainter *painter, ViewportParams *viewport,
-                         const QString &renderPos = QLatin1String("NONE"),
-                         GeoSceneLayer *layer = 0 );
+    bool render(GeoPainter *painter, ViewportParams *viewport,
+                RenderPosition renderPos, GeoSceneLayer *layer) override;
 
 public Q_SLOTS:
     void setShowRelief( bool show );
diff --git a/src/lib/marble/layers/TextureLayer.cpp b/src/lib/marble/layers/TextureLayer.cpp
--- a/src/lib/marble/layers/TextureLayer.cpp
+++ b/src/lib/marble/layers/TextureLayer.cpp
@@ -264,9 +264,9 @@
     delete d;
 }
 
-QStringList TextureLayer::renderPosition() const
+RenderPositions TextureLayer::renderPositions() const
 {
-    return QStringList() << "SURFACE";
+    return SurfaceRenderPosition;
 }
 
 void TextureLayer::addSeaDocument( const GeoDataDocument *seaDocument )
@@ -300,8 +300,8 @@
     return d->m_layerDecorator.showCityLights();
 }
 
-bool TextureLayer::render( GeoPainter *painter, ViewportParams *viewport,
-                           const QString &renderPos, GeoSceneLayer *layer )
+bool TextureLayer::render(GeoPainter *painter, ViewportParams *viewport,
+                          RenderPosition renderPos, GeoSceneLayer *layer)
 {
     Q_UNUSED( renderPos );
     Q_UNUSED( layer );
diff --git a/src/lib/marble/layers/VectorTileLayer.h b/src/lib/marble/layers/VectorTileLayer.h
--- a/src/lib/marble/layers/VectorTileLayer.h
+++ b/src/lib/marble/layers/VectorTileLayer.h
@@ -45,17 +45,16 @@
 
     ~VectorTileLayer();
 
-    QStringList renderPosition() const;
+    RenderPositions renderPositions() const override;
 
     RenderState renderState() const;
 
     int tileZoomLevel() const;
 
     QString runtimeTrace() const;
 
-    bool render( GeoPainter *painter, ViewportParams *viewport,
-                 const QString &renderPos = QLatin1String("NONE"),
-                 GeoSceneLayer *layer = 0 );
+    bool render(GeoPainter *painter, ViewportParams *viewport,
+                RenderPosition renderPos, GeoSceneLayer *layer) override;
 
 Q_SIGNALS:
     void tileLevelChanged(int tileLevel);
diff --git a/src/lib/marble/layers/VectorTileLayer.cpp b/src/lib/marble/layers/VectorTileLayer.cpp
--- a/src/lib/marble/layers/VectorTileLayer.cpp
+++ b/src/lib/marble/layers/VectorTileLayer.cpp
@@ -121,9 +121,9 @@
     delete d;
 }
 
-QStringList VectorTileLayer::renderPosition() const
+RenderPositions VectorTileLayer::renderPositions() const
 {
-    return QStringList() << "SURFACE";
+    return SurfaceRenderPosition;
 }
 
 RenderState VectorTileLayer::renderState() const
@@ -150,8 +150,8 @@
     return QString("Vector Tiles: %1 tiles in %2 layers").arg(tiles).arg(layers);
 }
 
-bool VectorTileLayer::render( GeoPainter *painter, ViewportParams *viewport,
-                              const QString &renderPos, GeoSceneLayer *layer )
+bool VectorTileLayer::render(GeoPainter *painter, ViewportParams *viewport,
+                             RenderPosition renderPos, GeoSceneLayer *layer)
 {
     Q_UNUSED( painter );
     Q_UNUSED( renderPos );
diff --git a/src/lib/marble/routing/RoutingLayer.h b/src/lib/marble/routing/RoutingLayer.h
--- a/src/lib/marble/routing/RoutingLayer.h
+++ b/src/lib/marble/routing/RoutingLayer.h
@@ -48,14 +48,14 @@
     ~RoutingLayer();
 
     /** Reimplemented from LayerInterface. We'll hover above the surface */
-    QStringList renderPosition() const;
+    RenderPositions renderPositions() const override;
 
     /** Reimplemented from LayerInterface. */
     qreal zValue() const;
 
     /** Reimplemented from LayerInterface. Paints route items and placemarks */
-    bool render( GeoPainter *painter, ViewportParams *viewport,
-                 const QString &renderPos = "NONE", GeoSceneLayer *layer = 0 );
+    bool render(GeoPainter *painter, ViewportParams *viewport,
+                RenderPosition renderPos, GeoSceneLayer *layer) override;
 
     RenderState renderState() const;
 
diff --git a/src/lib/marble/routing/RoutingLayer.cpp b/src/lib/marble/routing/RoutingLayer.cpp
--- a/src/lib/marble/routing/RoutingLayer.cpp
+++ b/src/lib/marble/routing/RoutingLayer.cpp
@@ -628,18 +628,18 @@
     delete d;
 }
 
-QStringList RoutingLayer::renderPosition() const
+RenderPositions RoutingLayer::renderPositions() const
 {
-    return QStringList() << "HOVERS_ABOVE_SURFACE";
+    return HoversAboveSurfaceRenderPosition;
 }
 
 qreal RoutingLayer::zValue() const
 {
     return 1.0;
 }
 
-bool RoutingLayer::render( GeoPainter *painter, ViewportParams *viewport,
-                           const QString& renderPos, GeoSceneLayer *layer )
+bool RoutingLayer::render(GeoPainter *painter, ViewportParams *viewport,
+                          RenderPosition renderPos, GeoSceneLayer *layer)
 {
     Q_UNUSED( viewport )
     Q_UNUSED( renderPos )
diff --git a/src/plugins/render/annotate/AnnotatePlugin.h b/src/plugins/render/annotate/AnnotatePlugin.h
--- a/src/plugins/render/annotate/AnnotatePlugin.h
+++ b/src/plugins/render/annotate/AnnotatePlugin.h
@@ -56,7 +56,7 @@
 
     QString renderPolicy() const;
 
-    QStringList renderPosition() const;
+    RenderPositions renderPositions() const override;
 
     QString name() const;
 
@@ -82,8 +82,8 @@
 
     virtual const QList<QActionGroup*> *actionGroups() const;
 
-    bool render( GeoPainter *painter, ViewportParams *viewport,
-                 const QString &renderPos, GeoSceneLayer *layer = 0 );
+    bool render(GeoPainter *painter, ViewportParams *viewport,
+                RenderPosition renderPos, GeoSceneLayer *layer) override;
 
 Q_SIGNALS:
     void placemarkMoved();
diff --git a/src/plugins/render/annotate/AnnotatePlugin.cpp b/src/plugins/render/annotate/AnnotatePlugin.cpp
--- a/src/plugins/render/annotate/AnnotatePlugin.cpp
+++ b/src/plugins/render/annotate/AnnotatePlugin.cpp
@@ -149,9 +149,9 @@
     return QString( "ALWAYS" );
 }
 
-QStringList AnnotatePlugin::renderPosition() const
+RenderPositions AnnotatePlugin::renderPositions() const
 {
-    return QStringList() << "ALWAYS_ON_TOP";
+    return AlwaysOnTopRenderPosition;
 }
 
 QString AnnotatePlugin::name() const
@@ -231,7 +231,8 @@
     return &m_actions;
 }
 
-bool AnnotatePlugin::render( GeoPainter *painter, ViewportParams *viewport, const QString &renderPos, GeoSceneLayer *layer )
+bool AnnotatePlugin::render(GeoPainter *painter, ViewportParams *viewport,
+                            RenderPosition renderPos, GeoSceneLayer *layer)
 {
     Q_UNUSED( renderPos );
     Q_UNUSED( layer );
diff --git a/src/plugins/render/aprs/AprsPlugin.h b/src/plugins/render/aprs/AprsPlugin.h
--- a/src/plugins/render/aprs/AprsPlugin.h
+++ b/src/plugins/render/aprs/AprsPlugin.h
@@ -48,7 +48,7 @@
         ~AprsPlugin();
         QStringList backendTypes() const;
         QString renderPolicy() const;
-        QStringList renderPosition() const;
+        RenderPositions renderPositions() const override;
         QString name() const;
         QString guiString() const;
         QString nameId() const;
@@ -65,7 +65,7 @@
 
         void initialize ();
         bool isInitialized () const;
-        bool render( GeoPainter *painter, ViewportParams *viewport, const QString& renderPos, GeoSceneLayer * layer = 0 );
+        bool render( GeoPainter *painter, ViewportParams *viewport, RenderPosition renderPos, GeoSceneLayer * layer) override;
 
         QDialog *configDialog();
         QAction       *action() const;
diff --git a/src/plugins/render/aprs/AprsPlugin.cpp b/src/plugins/render/aprs/AprsPlugin.cpp
--- a/src/plugins/render/aprs/AprsPlugin.cpp
+++ b/src/plugins/render/aprs/AprsPlugin.cpp
@@ -117,9 +117,9 @@
     return QString( "ALWAYS" );
 }
 
-QStringList AprsPlugin::renderPosition() const
+RenderPositions AprsPlugin::renderPositions() const
 {
-    return QStringList( "HOVERS_ABOVE_SURFACE" );
+    return HoversAboveSurfaceRenderPosition;
 }
 
 QString AprsPlugin::name() const
@@ -401,7 +401,8 @@
     return m_initialized;
 }
 
-bool AprsPlugin::render( GeoPainter *painter, ViewportParams *viewport, const QString& renderPos, GeoSceneLayer * layer )
+bool AprsPlugin::render(GeoPainter *painter, ViewportParams *viewport,
+                        RenderPosition renderPos, GeoSceneLayer *layer)
 {
     Q_UNUSED( renderPos )
     Q_UNUSED( layer )
diff --git a/src/plugins/render/atmosphere/AtmospherePlugin.h b/src/plugins/render/atmosphere/AtmospherePlugin.h
--- a/src/plugins/render/atmosphere/AtmospherePlugin.h
+++ b/src/plugins/render/atmosphere/AtmospherePlugin.h
@@ -35,7 +35,7 @@
 
     QString renderPolicy() const;
 
-    QStringList renderPosition() const;
+    RenderPositions renderPositions() const override;
 
     virtual RenderType renderType() const;
 
@@ -61,7 +61,7 @@
 
     bool isInitialized() const;
 
-    bool render( GeoPainter *painter, ViewportParams *viewport, const QString& renderPos, GeoSceneLayer * layer = 0 );
+    bool render(GeoPainter *painter, ViewportParams *viewport, RenderPosition renderPos, GeoSceneLayer * layer) override;
     void repaintPixmap(const ViewportParams *viewParams);
 
 public Q_SLOTS:
diff --git a/src/plugins/render/atmosphere/AtmospherePlugin.cpp b/src/plugins/render/atmosphere/AtmospherePlugin.cpp
--- a/src/plugins/render/atmosphere/AtmospherePlugin.cpp
+++ b/src/plugins/render/atmosphere/AtmospherePlugin.cpp
@@ -50,9 +50,9 @@
     return QString( "SPECIFIED_ALWAYS" );
 }
 
-QStringList AtmospherePlugin::renderPosition() const
+RenderPositions AtmospherePlugin::renderPositions() const
 {
-    return QStringList() << "SURFACE";
+    return SurfaceRenderPosition;
 }
 
 RenderPlugin::RenderType AtmospherePlugin::renderType() const
@@ -130,7 +130,7 @@
 
 bool AtmospherePlugin::render( GeoPainter *painter,
                               ViewportParams *viewParams,
-                              const QString &renderPos,
+                              RenderPosition renderPos,
                               GeoSceneLayer *layer )
 {
     Q_UNUSED(renderPos)
diff --git a/src/plugins/render/crosshairs/CrosshairsPlugin.h b/src/plugins/render/crosshairs/CrosshairsPlugin.h
--- a/src/plugins/render/crosshairs/CrosshairsPlugin.h
+++ b/src/plugins/render/crosshairs/CrosshairsPlugin.h
@@ -56,7 +56,7 @@
 
     QString renderPolicy() const;
 
-    QStringList renderPosition() const;
+    RenderPositions renderPositions() const override;
 
     virtual RenderType renderType() const;
 
@@ -80,7 +80,7 @@
 
     bool isInitialized () const;
 
-    bool render( GeoPainter *painter, ViewportParams *viewport, const QString& renderPos, GeoSceneLayer * layer = 0 );
+    bool render(GeoPainter *painter, ViewportParams *viewport, RenderPosition renderPos, GeoSceneLayer *layer) override;
 
     QDialog *configDialog();
 
diff --git a/src/plugins/render/crosshairs/CrosshairsPlugin.cpp b/src/plugins/render/crosshairs/CrosshairsPlugin.cpp
--- a/src/plugins/render/crosshairs/CrosshairsPlugin.cpp
+++ b/src/plugins/render/crosshairs/CrosshairsPlugin.cpp
@@ -64,9 +64,9 @@
     return QString( "ALWAYS" );
 }
 
-QStringList CrosshairsPlugin::renderPosition() const
+RenderPositions CrosshairsPlugin::renderPositions() const
 {
-    return QStringList( "FLOAT_ITEM" ); // although this is not a float item we choose the position of one
+    return FloatItemRenderPosition; // although this is not a float item we choose the position of one
 }
 
 RenderPlugin::RenderType CrosshairsPlugin::renderType() const
@@ -203,9 +203,9 @@
     emit settingsChanged( nameId() );
 }
 
-bool CrosshairsPlugin::render( GeoPainter *painter, ViewportParams *viewport,
-                               const QString& renderPos,
-                               GeoSceneLayer * layer )
+bool CrosshairsPlugin::render(GeoPainter *painter, ViewportParams *viewport,
+                              RenderPosition renderPos,
+                              GeoSceneLayer *layer)
 {
     Q_UNUSED( renderPos )
     Q_UNUSED( layer )
diff --git a/src/plugins/render/eclipses/EclipsesPlugin.h b/src/plugins/render/eclipses/EclipsesPlugin.h
--- a/src/plugins/render/eclipses/EclipsesPlugin.h
+++ b/src/plugins/render/eclipses/EclipsesPlugin.h
@@ -55,7 +55,7 @@
 
     QStringList backendTypes() const;
     QString renderPolicy() const;
-    QStringList renderPosition() const;
+    RenderPositions renderPositions() const override;
     QString name() const;
     QString nameId() const;
     QString guiString() const;
@@ -71,10 +71,8 @@
     void initialize();
     bool isInitialized() const;
 
-    bool render( GeoPainter *painter,
-                 ViewportParams *viewport,
-                 const QString &renderPos,
-                 GeoSceneLayer *layer );
+    bool render(GeoPainter *painter, ViewportParams *viewport,
+                RenderPosition renderPos, GeoSceneLayer *layer) override;
 
     QHash<QString, QVariant> settings() const;
     void setSettings( const QHash<QString, QVariant> &settings );
diff --git a/src/plugins/render/eclipses/EclipsesPlugin.cpp b/src/plugins/render/eclipses/EclipsesPlugin.cpp
--- a/src/plugins/render/eclipses/EclipsesPlugin.cpp
+++ b/src/plugins/render/eclipses/EclipsesPlugin.cpp
@@ -88,9 +88,9 @@
     return QString( "ALWAYS" );
 }
 
-QStringList EclipsesPlugin::renderPosition() const
+RenderPositions EclipsesPlugin::renderPositions() const
 {
-    return QStringList( "ORBIT" );
+    return OrbitRenderPosition;
 }
 
 QString EclipsesPlugin::name() const
@@ -232,10 +232,10 @@
     return RenderPlugin::eventFilter(object, e);
 }
 
-bool EclipsesPlugin::render( GeoPainter *painter,
-                             ViewportParams *viewport,
-                             const QString &renderPos,
-                             GeoSceneLayer *layer )
+bool EclipsesPlugin::render(GeoPainter *painter,
+                            ViewportParams *viewport,
+                            RenderPosition renderPos,
+                            GeoSceneLayer *layer)
 {
     Q_UNUSED( viewport );
     Q_UNUSED( renderPos );
diff --git a/src/plugins/render/elevationprofilemarker/ElevationProfileMarker.h b/src/plugins/render/elevationprofilemarker/ElevationProfileMarker.h
--- a/src/plugins/render/elevationprofilemarker/ElevationProfileMarker.h
+++ b/src/plugins/render/elevationprofilemarker/ElevationProfileMarker.h
@@ -41,7 +41,7 @@
 
     QString renderPolicy() const;
 
-    QStringList renderPosition() const;
+    RenderPositions renderPositions() const override;
 
     qreal zValue() const; // Overriding LayerInterface to paint on top of the route
 
@@ -65,8 +65,8 @@
 
     bool isInitialized() const;
 
-    bool render( GeoPainter *painter, ViewportParams *viewport,
-                 const QString &renderPos, GeoSceneLayer *layer = 0 );
+    bool render(GeoPainter *painter, ViewportParams *viewport,
+                RenderPosition renderPos, GeoSceneLayer *layer) override;
 
  private Q_SLOTS:
     void onGeoObjectAdded( GeoDataObject *object );
diff --git a/src/plugins/render/elevationprofilemarker/ElevationProfileMarker.cpp b/src/plugins/render/elevationprofilemarker/ElevationProfileMarker.cpp
--- a/src/plugins/render/elevationprofilemarker/ElevationProfileMarker.cpp
+++ b/src/plugins/render/elevationprofilemarker/ElevationProfileMarker.cpp
@@ -59,9 +59,9 @@
     return "ALWAYS";
 }
 
-QStringList ElevationProfileMarker::renderPosition() const
+RenderPositions ElevationProfileMarker::renderPositions() const
 {
-    return QStringList() << "HOVERS_ABOVE_SURFACE";
+    return HoversAboveSurfaceRenderPosition;
 }
 
 qreal ElevationProfileMarker::zValue() const
@@ -129,7 +129,8 @@
     return !m_markerIcon.image().isNull();
 }
 
-bool ElevationProfileMarker::render( GeoPainter* painter, ViewportParams* viewport, const QString& renderPos, GeoSceneLayer* layer )
+bool ElevationProfileMarker::render(GeoPainter* painter, ViewportParams* viewport,
+                                    RenderPosition renderPos, GeoSceneLayer* layer)
 {
     Q_UNUSED( renderPos )
     Q_UNUSED( layer )
diff --git a/src/plugins/render/graticule/GraticulePlugin.h b/src/plugins/render/graticule/GraticulePlugin.h
--- a/src/plugins/render/graticule/GraticulePlugin.h
+++ b/src/plugins/render/graticule/GraticulePlugin.h
@@ -65,7 +65,7 @@
 
     QString renderPolicy() const;
 
-    QStringList renderPosition() const;
+    RenderPositions renderPositions() const override;
 
     QString name() const;
 
@@ -89,7 +89,8 @@
 
     bool isInitialized () const;
 
-    virtual bool render( GeoPainter *painter, ViewportParams *viewport, const QString& renderPos, GeoSceneLayer * layer = 0 );
+    bool render(GeoPainter *painter, ViewportParams *viewport,
+                RenderPosition renderPos, GeoSceneLayer *layer) override;
 
     virtual qreal zValue() const;
 
diff --git a/src/plugins/render/graticule/GraticulePlugin.cpp b/src/plugins/render/graticule/GraticulePlugin.cpp
--- a/src/plugins/render/graticule/GraticulePlugin.cpp
+++ b/src/plugins/render/graticule/GraticulePlugin.cpp
@@ -68,9 +68,9 @@
     return QString( "ALWAYS" );
 }
 
-QStringList GraticulePlugin::renderPosition() const
+RenderPositions GraticulePlugin::renderPositions() const
 {
-    return QStringList( "SURFACE" );
+    return SurfaceRenderPosition;
 }
 
 QString GraticulePlugin::name() const
@@ -257,9 +257,8 @@
     emit settingsChanged( nameId() );
 }
 
-bool GraticulePlugin::render( GeoPainter *painter, ViewportParams *viewport,
-				const QString& renderPos,
-				GeoSceneLayer * layer )
+bool GraticulePlugin::render(GeoPainter *painter, ViewportParams *viewport,
+                             RenderPosition renderPos, GeoSceneLayer *layer)
 {
     Q_UNUSED( layer )
     Q_UNUSED( renderPos )
diff --git a/src/plugins/render/inhibit-screensaver/InhibitScreensaverPlugin.h b/src/plugins/render/inhibit-screensaver/InhibitScreensaverPlugin.h
--- a/src/plugins/render/inhibit-screensaver/InhibitScreensaverPlugin.h
+++ b/src/plugins/render/inhibit-screensaver/InhibitScreensaverPlugin.h
@@ -60,10 +60,10 @@
 
     QIcon icon() const;
 
-    virtual QStringList renderPosition() const;
+    RenderPositions renderPositions() const override;
 
-    virtual bool render( GeoPainter *painter, ViewportParams *viewport,
-       const QString& renderPos = "NONE", GeoSceneLayer * layer = 0 );
+    bool render(GeoPainter *painter, ViewportParams *viewport,
+                RenderPosition renderPos, GeoSceneLayer *layer) override;
 
     virtual QString renderPolicy() const;
 
diff --git a/src/plugins/render/inhibit-screensaver/InhibitScreensaverPlugin.cpp b/src/plugins/render/inhibit-screensaver/InhibitScreensaverPlugin.cpp
--- a/src/plugins/render/inhibit-screensaver/InhibitScreensaverPlugin.cpp
+++ b/src/plugins/render/inhibit-screensaver/InhibitScreensaverPlugin.cpp
@@ -75,10 +75,10 @@
     return QStringList( nameId() );
 }
 
-QStringList InhibitScreensaverPlugin::renderPosition() const
+RenderPositions InhibitScreensaverPlugin::renderPositions() const
 {
     // We're invisible, but need to be initialized
-    return QStringList( "FLOAT_ITEM" );
+    return FloatItemRenderPosition;
 }
 
 QString InhibitScreensaverPlugin::name() const
@@ -160,7 +160,7 @@
     }
 }
 
-bool InhibitScreensaverPlugin::render( GeoPainter *, ViewportParams *, const QString&, GeoSceneLayer *)
+bool InhibitScreensaverPlugin::render(GeoPainter *, ViewportParams *, RenderPosition, GeoSceneLayer *)
 {
     // invisible
     return true;
diff --git a/src/plugins/render/measure/MeasureToolPlugin.h b/src/plugins/render/measure/MeasureToolPlugin.h
--- a/src/plugins/render/measure/MeasureToolPlugin.h
+++ b/src/plugins/render/measure/MeasureToolPlugin.h
@@ -50,7 +50,7 @@
 
     QStringList backendTypes() const;
     QString renderPolicy() const;
-    QStringList renderPosition() const;
+    RenderPositions renderPositions() const override;
     QString name() const;
     QString guiString() const;
     QString nameId() const;
@@ -69,7 +69,8 @@
 
     bool isInitialized () const;
 
-    bool render( GeoPainter *painter, ViewportParams *viewport, const QString& renderPos, GeoSceneLayer * layer = 0 );
+    bool render(GeoPainter *painter, ViewportParams *viewport,
+                RenderPosition renderPos, GeoSceneLayer *layer) override;
 
     QDialog *configDialog();
     QHash<QString,QVariant> settings() const;
diff --git a/src/plugins/render/measure/MeasureToolPlugin.cpp b/src/plugins/render/measure/MeasureToolPlugin.cpp
--- a/src/plugins/render/measure/MeasureToolPlugin.cpp
+++ b/src/plugins/render/measure/MeasureToolPlugin.cpp
@@ -79,9 +79,9 @@
     return QString( "ALWAYS" );
 }
 
-QStringList MeasureToolPlugin::renderPosition() const
+RenderPositions MeasureToolPlugin::renderPositions() const
 {
-    return QStringList() << "ATMOSPHERE";
+    return AtmosphereRenderPosition;
 }
 
 QString MeasureToolPlugin::name() const
@@ -224,10 +224,10 @@
     emit repaintNeeded();
 }
 
-bool MeasureToolPlugin::render( GeoPainter *painter,
-                          ViewportParams *viewport,
-                          const QString& renderPos,
-                          GeoSceneLayer * layer )
+bool MeasureToolPlugin::render(GeoPainter *painter,
+                               ViewportParams *viewport,
+                               RenderPosition renderPos,
+                               GeoSceneLayer *layer)
 {
     Q_UNUSED(renderPos)
     Q_UNUSED(layer)
diff --git a/src/plugins/render/positionmarker/PositionMarker.h b/src/plugins/render/positionmarker/PositionMarker.h
--- a/src/plugins/render/positionmarker/PositionMarker.h
+++ b/src/plugins/render/positionmarker/PositionMarker.h
@@ -43,7 +43,7 @@
     explicit PositionMarker(const MarbleModel *marbleModel = 0 );
     ~PositionMarker ();
 
-    QStringList renderPosition() const;
+    RenderPositions renderPositions() const override;
 
     QString renderPolicy() const;
 
@@ -71,8 +71,8 @@
 
     bool isInitialized () const;
 
-    bool render( GeoPainter *painter, ViewportParams *viewport,
-                 const QString& renderPos, GeoSceneLayer * layer = 0 );
+    bool render(GeoPainter *painter, ViewportParams *viewport,
+                RenderPosition renderPos, GeoSceneLayer *layer) override;
 
     // Overriding LayerInterface to paint on top of the route
     virtual qreal zValue() const;
diff --git a/src/plugins/render/positionmarker/PositionMarker.cpp b/src/plugins/render/positionmarker/PositionMarker.cpp
--- a/src/plugins/render/positionmarker/PositionMarker.cpp
+++ b/src/plugins/render/positionmarker/PositionMarker.cpp
@@ -64,9 +64,9 @@
     delete m_configDialog;
 }
 
-QStringList PositionMarker::renderPosition() const
+RenderPositions PositionMarker::renderPositions() const
 {
-    return QStringList( "HOVERS_ABOVE_SURFACE" );
+    return HoversAboveSurfaceRenderPosition;
 }
 
 QString PositionMarker::renderPolicy() const
@@ -170,10 +170,10 @@
     return m_isInitialized;
 }
 
-bool PositionMarker::render( GeoPainter *painter,
-                           ViewportParams *viewport,
-                           const QString& renderPos,
-                           GeoSceneLayer * layer )
+bool PositionMarker::render(GeoPainter *painter,
+                            ViewportParams *viewport,
+                            RenderPosition renderPos,
+                            GeoSceneLayer *layer)
 {
     Q_UNUSED( renderPos )
     Q_UNUSED( layer )
diff --git a/src/plugins/render/satellites/SatellitesPlugin.h b/src/plugins/render/satellites/SatellitesPlugin.h
--- a/src/plugins/render/satellites/SatellitesPlugin.h
+++ b/src/plugins/render/satellites/SatellitesPlugin.h
@@ -41,7 +41,7 @@
     
     QStringList backendTypes() const;
     QString renderPolicy() const;
-    QStringList renderPosition() const;
+    RenderPositions renderPositions() const override;
     QString name() const;
     QString nameId() const;
     QString guiString() const;
@@ -55,10 +55,8 @@
     void initialize();
     bool isInitialized() const;
 
-    bool render( GeoPainter *painter,
-                 ViewportParams *viewport,
-                 const QString &renderPos,
-                 GeoSceneLayer *layer );
+    bool render(GeoPainter *painter, ViewportParams *viewport,
+                RenderPosition renderPos, GeoSceneLayer *layer) override;
 
     bool eventFilter( QObject *object, QEvent *event );
 
diff --git a/src/plugins/render/satellites/SatellitesPlugin.cpp b/src/plugins/render/satellites/SatellitesPlugin.cpp
--- a/src/plugins/render/satellites/SatellitesPlugin.cpp
+++ b/src/plugins/render/satellites/SatellitesPlugin.cpp
@@ -77,9 +77,9 @@
     return QString( "ALWAYS" );
 }
 
-QStringList SatellitesPlugin::renderPosition() const
+RenderPositions SatellitesPlugin::renderPositions() const
 {
-    return QStringList( "ORBIT" );
+    return OrbitRenderPosition;
 }
 
 QString SatellitesPlugin::name() const
@@ -181,8 +181,8 @@
     return m_isInitialized;
 }
 
-bool SatellitesPlugin::render( GeoPainter *painter, ViewportParams *viewport,
-    const QString &renderPos, GeoSceneLayer *layer )
+bool SatellitesPlugin::render(GeoPainter *painter, ViewportParams *viewport,
+                              RenderPosition renderPos, GeoSceneLayer *layer)
 {
     Q_UNUSED( painter );
     Q_UNUSED( viewport );
diff --git a/src/plugins/render/stars/StarsPlugin.h b/src/plugins/render/stars/StarsPlugin.h
--- a/src/plugins/render/stars/StarsPlugin.h
+++ b/src/plugins/render/stars/StarsPlugin.h
@@ -137,7 +137,7 @@
 
     QString renderPolicy() const;
 
-    QStringList renderPosition() const;
+    RenderPositions renderPositions() const override;
 
     virtual RenderType renderType() const;
 
@@ -161,7 +161,8 @@
 
     bool isInitialized() const;
 
-    bool render( GeoPainter *painter, ViewportParams *viewport, const QString& renderPos, GeoSceneLayer * layer = 0 );
+    bool render(GeoPainter *painter, ViewportParams *viewport,
+                RenderPosition renderPos, GeoSceneLayer *layer) override;
 
     QDialog *configDialog();
 
diff --git a/src/plugins/render/stars/StarsPlugin.cpp b/src/plugins/render/stars/StarsPlugin.cpp
--- a/src/plugins/render/stars/StarsPlugin.cpp
+++ b/src/plugins/render/stars/StarsPlugin.cpp
@@ -92,9 +92,9 @@
     return QString( "SPECIFIED_ALWAYS" );
 }
 
-QStringList StarsPlugin::renderPosition() const
+RenderPositions StarsPlugin::renderPositions() const
 {
-    return QStringList() << "STARS";
+    return StarsRenderPosition;
 }
 
 RenderPlugin::RenderType StarsPlugin::renderType() const
@@ -774,8 +774,8 @@
     m_dsosLoaded = true;
 }
 
-bool StarsPlugin::render( GeoPainter *painter, ViewportParams *viewport,
-                          const QString& renderPos, GeoSceneLayer * layer )
+bool StarsPlugin::render(GeoPainter *painter, ViewportParams *viewport,
+                         RenderPosition renderPos, GeoSceneLayer *layer)
 {
     Q_UNUSED( renderPos )
     Q_UNUSED( layer )
diff --git a/src/plugins/render/sun/SunPlugin.h b/src/plugins/render/sun/SunPlugin.h
--- a/src/plugins/render/sun/SunPlugin.h
+++ b/src/plugins/render/sun/SunPlugin.h
@@ -39,7 +39,7 @@
 
     QString renderPolicy() const;
 
-    QStringList renderPosition() const;
+    RenderPositions renderPositions() const override;
 
     QString name() const;
 
@@ -61,7 +61,8 @@
 
     bool isInitialized () const;
 
-    bool render( GeoPainter *painter, ViewportParams *viewport, const QString& renderPos, GeoSceneLayer * layer = 0 );
+    bool render(GeoPainter *painter, ViewportParams *viewport,
+                RenderPosition renderPos, GeoSceneLayer *layer) override;
 
 private:
     QPixmap m_pixmap;
diff --git a/src/plugins/render/sun/SunPlugin.cpp b/src/plugins/render/sun/SunPlugin.cpp
--- a/src/plugins/render/sun/SunPlugin.cpp
+++ b/src/plugins/render/sun/SunPlugin.cpp
@@ -43,10 +43,9 @@
     return QString( "SPECIFIED_ALWAYS" );
 }
 
-QStringList SunPlugin::renderPosition() const
+RenderPositions SunPlugin::renderPositions() const
 {
-    QStringList layers = QStringList() << "ALWAYS_ON_TOP";
-    return layers;
+    return AlwaysOnTopRenderPosition;
 }
 
 QString SunPlugin::name() const
@@ -103,8 +102,8 @@
     return !m_pixmap.isNull();
 }
 
-bool SunPlugin::render( GeoPainter *painter, ViewportParams *viewport,
-                        const QString& renderPos, GeoSceneLayer * layer )
+bool SunPlugin::render(GeoPainter *painter, ViewportParams *viewport,
+                       RenderPosition renderPos, GeoSceneLayer *layer)
 {
     Q_UNUSED( viewport )
     Q_UNUSED( renderPos )
diff --git a/src/plugins/render/test/TestPlugin.h b/src/plugins/render/test/TestPlugin.h
--- a/src/plugins/render/test/TestPlugin.h
+++ b/src/plugins/render/test/TestPlugin.h
@@ -40,7 +40,7 @@
 
     QString renderPolicy() const;
 
-    QStringList renderPosition() const;
+    RenderPositions renderPositions() const override;
 
     QString name() const;
 
@@ -63,7 +63,8 @@
     bool isInitialized () const;
 
 
-    bool render( GeoPainter *painter, ViewportParams *viewport, const QString& renderPos, GeoSceneLayer * layer = 0 );
+    bool render(GeoPainter *painter, ViewportParams *viewport,
+                RenderPosition renderPos, GeoSceneLayer *layer) overide;
 };
 
 }
diff --git a/src/plugins/render/test/TestPlugin.cpp b/src/plugins/render/test/TestPlugin.cpp
--- a/src/plugins/render/test/TestPlugin.cpp
+++ b/src/plugins/render/test/TestPlugin.cpp
@@ -48,9 +48,9 @@
     return QString( "ALWAYS" );
 }
 
-QStringList TestPlugin::renderPosition() const
+RenderPositions TestPlugin::renderPositions() const
 {
-    return QStringList( "ALWAYS_ON_TOP" );
+    return AlwaysOnTopRenderPosition;
 }
 
 QString TestPlugin::name() const
@@ -104,7 +104,8 @@
     return true;
 }
 
-bool TestPlugin::render( GeoPainter *painter, ViewportParams *viewport, const QString& renderPos, GeoSceneLayer * layer )
+bool TestPlugin::render(GeoPainter *painter, ViewportParams *viewport,
+                        RenderPosition renderPos, GeoSceneLayer *layer)
 {
     Q_UNUSED(viewport);
     Q_UNUSED(renderPos);
diff --git a/src/plugins/render/twitter/twitterPlugin.h b/src/plugins/render/twitter/twitterPlugin.h
--- a/src/plugins/render/twitter/twitterPlugin.h
+++ b/src/plugins/render/twitter/twitterPlugin.h
@@ -49,7 +49,7 @@
 
     QString renderPolicy() const;
 
-    QStringList renderPosition() const;
+    RenderPositions renderPositions() const override;
 
     QString name() const;
 
@@ -66,7 +66,8 @@
 
     bool isInitialized() const;
 
-    bool render(GeoPainter *painter, ViewportParams *viewport, const QString& renderPos, GeoSceneLayer * layer = 0);
+    bool render(GeoPainter *painter, ViewportParams *viewport,
+                RenderPosition renderPos, GeoSceneLayer *layer) override;
 
     ~twitterPlugin();
 
diff --git a/src/plugins/render/twitter/twitterPlugin.cpp b/src/plugins/render/twitter/twitterPlugin.cpp
--- a/src/plugins/render/twitter/twitterPlugin.cpp
+++ b/src/plugins/render/twitter/twitterPlugin.cpp
@@ -35,9 +35,9 @@
     return QString("ALWAYS");
 }
 
-QStringList twitterPlugin::renderPosition() const
+RenderPositions twitterPlugin::renderPositions() const
 {
-    return QStringList("ALWAYS_ON_TOP");
+    return AlwaysOnTopRenderPosition;
 }
 
 QString twitterPlugin::name() const
@@ -81,7 +81,7 @@
 }
 
 bool twitterPlugin::render(GeoPainter *painter, ViewportParams *viewport,
-			   const QString& renderPos, GeoSceneLayer * layer)
+			   RenderPosition renderPos, GeoSceneLayer *layer)
 {
     QBrush brush(QColor(99, 198, 198, 80));
     painter->setPen(QColor(198, 99, 99, 255));
diff --git a/src/plugins/templates/floatitem/FITemplateFloatItem.h b/src/plugins/templates/floatitem/FITemplateFloatItem.h
--- a/src/plugins/templates/floatitem/FITemplateFloatItem.h
+++ b/src/plugins/templates/floatitem/FITemplateFloatItem.h
@@ -58,7 +58,7 @@
     // Provided by AbstractFloatItem and should not be implemented.
     //
     // QString renderPolicy() const;
-    // QStringList renderPosition() const;
+    // RenderPositions renderPositions() const;
 
     QString name() const;
 
@@ -76,8 +76,8 @@
 
     // Provided by AbstractFloatItem and should not be implemented.
     //
-    // bool render( GeoPainter *painter, ViewportParams *viewport,
-    //              const QString &renderPos, GeoSceneLayer *layer);
+    // bool render(GeoPainter *painter, ViewportParams *viewport,
+    //             RenderPosition renderPos, GeoSceneLayer *layer) override;
 
     QPainterPath backgroundShape() const;
 
diff --git a/tests/AbstractFloatItemTest.cpp b/tests/AbstractFloatItemTest.cpp
--- a/tests/AbstractFloatItemTest.cpp
+++ b/tests/AbstractFloatItemTest.cpp
@@ -84,7 +84,7 @@
     const NullFloatItem item;
 
     QCOMPARE( item.renderPolicy(), QString( "ALWAYS") );
-    QCOMPARE( item.renderPosition(), QStringList( "FLOAT_ITEM" ) );
+    QCOMPARE( item.renderPositions(), RenderPositions(FloatItemRenderPosition) );
     QCOMPARE( item.cacheMode(), AbstractFloatItem::ItemCoordinateCache );
     QCOMPARE( item.frame(), AbstractFloatItem::RectFrame );
     QCOMPARE( item.padding(), 4. );