diff -r 013afe9ee040 -r b465e2c34f23 graph_displayer_canvas.cc
--- a/graph_displayer_canvas.cc	Wed Jan 10 14:56:16 2007 +0000
+++ b/graph_displayer_canvas.cc	Fri Feb 02 10:13:33 2007 +0000
@@ -28,10 +28,14 @@
   was_redesigned(false), is_drawn(false), mytab(mainw),
   background_set(false)
 {
+  //add mouse scroll event handler - it won't be changed, it handles zoom
+  signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::scrollEventHandler), false);
+
   //base event handler is move tool
   actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::moveEventHandler), false);
   actual_tool=MOVE;
 
+
   active_node=INVALID;
   active_edge=INVALID;
   forming_edge=INVALID;
@@ -319,6 +323,7 @@
 
 void GraphDisplayerCanvas::reDesignGraph()
 {
+  double max_coord=50000;
   double min_dist=20;
   double init_vector_length=25;
 
@@ -401,6 +406,26 @@
 	}
       for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i)
 	{
+	  if(((mytab.mapstorage).coords[i].x)+actual_forces[i].x>max_coord)
+	    {
+	      actual_forces[i].x=max_coord-((mytab.mapstorage).coords[i].x);
+	      std::cout << "Correction! " << (((mytab.mapstorage).coords[i].x)+actual_forces[i].x) << std::endl;
+	    }
+	  else if(((mytab.mapstorage).coords[i].x)+actual_forces[i].x<(0-max_coord))
+	    {
+	      actual_forces[i].x=0-max_coord-((mytab.mapstorage).coords[i].x);
+	      std::cout << "Correction! " << (((mytab.mapstorage).coords[i].x)+actual_forces[i].x) << std::endl;
+	    }
+	  if(((mytab.mapstorage).coords[i].y)+actual_forces[i].y>max_coord)
+	    {
+	      actual_forces[i].y=max_coord-((mytab.mapstorage).coords[i].y);
+	      std::cout << "Correction! " << (((mytab.mapstorage).coords[i].y)+actual_forces[i].y) << std::endl;
+	    }
+	  else if(((mytab.mapstorage).coords[i].y)+actual_forces[i].y<(0-max_coord))
+	    {
+	      actual_forces[i].y=0-max_coord-((mytab.mapstorage).coords[i].y);
+	      std::cout << "Correction! " << (((mytab.mapstorage).coords[i].y)+actual_forces[i].y) << std::endl;
+	    }
 	  moveNode(actual_forces[i].x, actual_forces[i].y, nodesmap[i], i);
 	}
     }