1 files changed, 12 insertions, 0 deletions
diff --git a/src/View/TopView.h b/src/View/TopView.h
index 844faa5..bbb9394 100644
--- a/src/View/TopView.h
+++ b/src/View/TopView.h
@@ -27,14 +27,26 @@ namespace ZoomEdit {
 namespace Data {
 class Level;
 class Room;
+class Vertex;
 }
 
 namespace View {
 
 class TopView : public View {
   private:
+    class Edge {
+      public:
+        const Data::Vertex *v1, *v2;
+        
+        Edge(const Data::Vertex *v10, const Data::Vertex *v20)
+        : v1(v10), v2(v20) {};
+        bool operator<(const Edge &e) const;
+    };
+    
     Data::Level *level;
     
+    bool edgeLess(const Edge &e1, const Edge &e2);
+    
     void drawGrid(Gui::RenderArea *renderArea);
     
     void renderRoom(Data::Room *room);