1.1 --- a/graph_displayer_canvas.cc	Thu Sep 28 09:26:48 2006 +0000
     1.2 +++ b/graph_displayer_canvas.cc	Thu Sep 28 14:32:40 2006 +0000
     1.3 @@ -5,7 +5,7 @@
     1.4    nodesmap(mainw.mapstorage.graph), edgesmap(mainw.mapstorage.graph), edgetextmap(mainw.mapstorage.graph),
     1.5    nodetextmap(mainw.mapstorage.graph), displayed_graph(*(root()), 0, 0),
     1.6    isbutton(0), active_item(NULL), target_item(NULL), nodemap_to_edit(""),
     1.7 -  edgemap_to_edit(""), autoscale(true), radius_min(10), radius_max(40), radius_unit(1), mytab(mainw)
     1.8 +  edgemap_to_edit(""), autoscale(true), zoomtrack(false), radius_min(10), radius_max(40), radius_unit(1), mytab(mainw)
     1.9  {
    1.10    //base event handler is move tool
    1.11    actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::moveEventHandler), false);
    1.12 @@ -227,18 +227,27 @@
    1.13    }
    1.14  }
    1.15  
    1.16 -void GraphDisplayerCanvas::setNodeView(bool autoscale_p, double min_p, double max_p, double unit_p)
    1.17 +void GraphDisplayerCanvas::setNodeView(bool autoscale_p, bool zoomtrack_p, double min_p, double max_p, double unit_p)
    1.18  {
    1.19    autoscale=autoscale_p;
    1.20    radius_min=min_p;
    1.21    radius_max=max_p;
    1.22    radius_unit=unit_p;
    1.23 +
    1.24 +  if((!zoomtrack) && zoomtrack_p)
    1.25 +    {
    1.26 +      fixed_zoom_factor=get_pixels_per_unit();
    1.27 +    }
    1.28 +
    1.29 +  zoomtrack=zoomtrack_p;
    1.30 +
    1.31    propertyChange(false, N_RADIUS);
    1.32  }
    1.33  
    1.34 -void GraphDisplayerCanvas::getNodeView(bool & autoscale_p, double& min_p, double& max_p, double& unit_p)
    1.35 +void GraphDisplayerCanvas::getNodeView(bool & autoscale_p, bool & zoomtrack_p, double& min_p, double& max_p, double& unit_p)
    1.36  {
    1.37    autoscale_p=autoscale;
    1.38 +  zoomtrack_p=zoomtrack;
    1.39    min_p=radius_min;
    1.40    max_p=radius_max;
    1.41    unit_p=radius_unit;