1 files changed, 29 insertions, 2 deletions
diff --git a/src/Gui/RenderArea.h b/src/Gui/RenderArea.h
index 6695e09..d0b4ad3 100644
--- a/src/Gui/RenderArea.h
+++ b/src/Gui/RenderArea.h
@@ -11,12 +11,39 @@ namespace Gui {
 class RenderArea : public Gtk::DrawingArea {
   public:
     RenderArea(BaseObjectType *cobject, const Glib::RefPtr<Gnome::Glade::Xml> &xml);
-    virtual ~RenderArea();
-  
+    
   private:
     static GdkGLConfig *glconfig;
     
+    float x, y;
+    
+    int zoomLevel;
+    float scale;
+    
     void onRealize();
+    bool onConfigureEvent(GdkEventConfigure *event);
+    bool onExposeEvent(GdkEventExpose *event);
+    bool onScrollEvent(GdkEventScroll *event);
+    
+    void zoom(int zoom, float x = 0.5f, float y = 0.5f);
+    
+    void updateViewport();
+    
+    void drawGrid();
+    
+    bool gdkGLBegin() {
+      GtkWidget *widget = GTK_WIDGET(gobj());
+      
+      return gdk_gl_drawable_gl_begin(gtk_widget_get_gl_drawable(widget), gtk_widget_get_gl_context(widget));
+    }
+    
+    void gdkSwapBuffers() {
+      gdk_gl_drawable_swap_buffers(gtk_widget_get_gl_drawable(GTK_WIDGET(gobj())));
+    }
+    
+    void gdkGLEnd() {
+      gdk_gl_drawable_gl_end(gtk_widget_get_gl_drawable(GTK_WIDGET(gobj())));
+    }
 };
 
 }