#include "graph_displayer_canvas.h"

 #include "broken_edge.h"

 #include <math.h>

 int GraphDisplayerCanvas::changeNodeRadius (std::string mapname, Graph::Node node)

 {

   Graph::NodeMap<double> * actual_map;

   double min, max;

   if(mapname=="Default")

     {

       min=node_property_defaults[N_RADIUS];

       max=node_property_defaults[N_RADIUS];

       actual_map=new Graph::NodeMap<double>(mapstorage.graph,node_property_defaults[N_RADIUS]);

     }

   else

     {

       min=mapstorage.minOfNodeMap(mapname);

       max=mapstorage.maxOfNodeMap(mapname);

       actual_map=(mapstorage.nodemap_storage)[mapname];

     }

   if(node==INVALID)

     {

       for (NodeIt i(mapstorage.graph); i!=INVALID; ++i)

 	{

 	  double v=abs((*actual_map)[i]);

 	  int w;

 	  if(min==max)

 	    {

 	      w=(int)(node_property_defaults[N_RADIUS]);

 	    }

 	  else

 	    {

 	      w=(int)(MIN_NODE_RADIUS+(v-min)/(max-min)*(MAX_NODE_RADIUS-MIN_NODE_RADIUS));

 	    }

 	  if(w>=0)

 	    {

 	      double x1, y1, x2, y2;

 	      x1=nodesmap[i]->property_x1().get_value();

 	      x2=nodesmap[i]->property_x2().get_value();

 	      y1=nodesmap[i]->property_y1().get_value();

 	      y2=nodesmap[i]->property_y2().get_value();

 	      nodesmap[i]->property_x1().set_value((x1+x2)/2-w);

 	      nodesmap[i]->property_x2().set_value((x1+x2)/2+w);

 	      nodesmap[i]->property_y1().set_value((y1+y2)/2-w);

 	      nodesmap[i]->property_y2().set_value((y1+y2)/2+w);

 	    }

 	}

     }

   else

     {

       //I think only new nodes use this case

 //       int w=(int)(*actual_map)[node];

       int w=(int)(node_property_defaults[N_RADIUS]);

       if(w>=0)

 	{

 	  double x1, y1, x2, y2;

 	  x1=nodesmap[node]->property_x1().get_value();

 	  x2=nodesmap[node]->property_x2().get_value();

 	  y1=nodesmap[node]->property_y1().get_value();

 	  y2=nodesmap[node]->property_y2().get_value();

 	  nodesmap[node]->property_x1().set_value((x1+x2)/2-w);

 	  nodesmap[node]->property_x2().set_value((x1+x2)/2+w);

 	  nodesmap[node]->property_y1().set_value((y1+y2)/2-w);

 	  nodesmap[node]->property_y2().set_value((y1+y2)/2+w);

 	}

     }

   return 0;

 };

 int GraphDisplayerCanvas::changeNodeColor (std::string mapname, Graph::Node node)

 {  

   //function maps the range of the maximum and

   //the minimum of the nodemap to the range of

   //green in RGB

   Graph::NodeMap<double> * actual_map;

   if(mapname=="Default")

     {

       actual_map=new Graph::NodeMap<double>(mapstorage.graph,node_property_defaults[N_COLOR]);

     }

   else

     {

       actual_map=(mapstorage.nodemap_storage)[mapname];

     }

   double max, min;

   if(mapname!="Default")

     {

       max=mapstorage.maxOfNodeMap(mapname);

       min=mapstorage.minOfNodeMap(mapname);

     }

   else

     {

       max=node_property_defaults[N_COLOR];

       min=node_property_defaults[N_COLOR];

     }

   if(node==INVALID)

     {

       for (NodeIt i(mapstorage.graph); i!=INVALID; ++i)

 	{

 	  Gdk::Color color;

 	  double w=(*actual_map)[i];

 	  if(max!=min)

 	    {

 	      color.set_rgb_p (0, 0, 100*(w-min)/(max-min));

 	    }

 	  else

 	    {

 	      color.set_rgb_p (0, 0, 100);

 	    }

 	  nodesmap[i]->property_fill_color_gdk().set_value(color);

 	}

     }

   else

     {

       Gdk::Color color;

       double w=(*actual_map)[node];

       if(max!=min)

 	{

 	  color.set_rgb_p (0, 0, 100*(w-min)/(max-min));

 	}

       else

 	{

 	  color.set_rgb_p (0, 0, 100);

 	}

       nodesmap[node]->property_fill_color_gdk().set_value(color);

     }

   return 0;

 };

 int GraphDisplayerCanvas::changeNodeText (std::string mapname, Graph::Node node)

 {

   //the number in the map will be written on the node

   //EXCEPT when the name of the map is Text, because

   //in that case empty string will be written, because

   //that is the deleter map

   Graph::NodeMap<double> * actual_map=NULL;

   if(mapname!="Default")

     {

       actual_map=(mapstorage.nodemap_storage)[mapname];

     }

   if(node==INVALID)

     {

       for (NodeIt i(mapstorage.graph); i!=INVALID; ++i)

 	{

 	  if(mapname!="Default")

 	    {

 	      nodemap_to_edit=mapname;

 	      double number=(*actual_map)[i];

 	      std::ostringstream ostr;

 	      ostr << number;

       	      nodetextmap[i]->property_text().set_value(ostr.str());

 	    }

 	  else

 	    {

 	      nodemap_to_edit="";

 	      nodetextmap[i]->property_text().set_value("");

 	    }

 	}

     }

   else

     {

       if(mapname!="Default")

 	{

 	  double number=(*actual_map)[node];

 	  std::ostringstream ostr;

 	  ostr << number;

 	  nodetextmap[node]->property_text().set_value(ostr.str());

 	}

       else

 	{

 	  nodetextmap[node]->property_text().set_value("");

 	}

     }

   return 0;

 };