1.1 --- a/gui/graph_displayer_canvas.h	Thu Jun 09 21:49:48 2005 +0000
     1.2 +++ b/gui/graph_displayer_canvas.h	Fri Jun 10 11:58:03 2005 +0000
     1.3 @@ -40,6 +40,9 @@
     1.4    ///Sets the scroll region of the convas to the bounding box of the graph.
     1.5    void updateScrollRegion();
     1.6  
     1.7 +  ///This function changes the tool in the graph-editor's hand
     1.8 +  void changeEditorialTool(int);
     1.9 +
    1.10  protected:
    1.11  
    1.12    //maximizing, minimizing, restoring window, etc. 
    1.13 @@ -52,6 +55,18 @@
    1.14    ///of the canvas
    1.15    bool event_handler(GdkEvent* e, Node n);
    1.16  
    1.17 +  ///actual event handler
    1.18 +  ///
    1.19 +  ///Actual event handler should be stored, to be able to disconnect it and later reconnect it.
    1.20 +  sigc::connection actual_handler;
    1.21 +
    1.22 +  ///event handler for the case when move-tool is active
    1.23 +  bool move_event_handler(GdkEvent*);
    1.24 +  ///event handler for the case when create_node-tool is active
    1.25 +  bool create_node_event_handler(GdkEvent*);
    1.26 +  ///event handler for the case when create_edge-tool is active
    1.27 +  bool create_edge_event_handler(GdkEvent*);
    1.28 +
    1.29    ///The graph, on which we work
    1.30    Graph g;
    1.31  
    1.32 @@ -82,6 +97,7 @@
    1.33    ///1. we cannot query the item at he cursor as fast as it could not cause a Segmentation Fault
    1.34    ///2. we would like to handle only ony item per movement, therefore quering it is not a working solution
    1.35    Gnome::Canvas::Item * active_item;
    1.36 +  Graph::NodeIt active_node;
    1.37  
    1.38    static const int zoom_step = 5;
    1.39  };