#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;

   if(mapname=="Default")

     {

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

     }

   else

     {

       actual_map=(mapstorage.nodemap_storage)[mapname];

     }

   if(node==INVALID)

     {

       for (NodeIt i(g); i!=INVALID; ++i)

 	{

 	  int w=(int)(*actual_map)[i];

 	  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>(g,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(g); 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(g); i!=INVALID; ++i)

 	{

 	  if(mapname!="Default")

 	    {

 	      nodemap_to_edit=mapname;

 	      double number=(*actual_map)[i];

 	      int length=1;

 	      //if number is smaller than one, length would be negative, or invalid

 	      if(number>=1)

 		{

 		  length=(int)(floor(log(number)/log(10)))+1;

 		}

 	      int maxpos=(int)(pow(10,length-1));

 	      int strl=length+1+RANGE;

 	      char * str=new char[strl];

 	      str[length]='.';

 	      str[strl]='\0';

 	      for(int j=0;j<strl;j++)

 		{

 		  if(j!=length)

 		    {

 //  		      std::cout << (number) << "-" << (int)number << "=" << (number)-(int)number << std::endl;

 		      if((number-(int)number)>ALMOST_ONE)

 			{

 // 			  std::cout<<"rounding: " <<number<<std::endl;

 			  number=round(number);

 			}

  		      int digit=(int)(number/maxpos);

 // 		      std::cout << number << "/" << maxpos << "=" << digit << std::endl;

 		      str[j]=(digit+'0');

 		      number-=digit*maxpos;

 		      number*=10;

 		    }

 		}

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

 	    }

 	  else

 	    {

 	      nodemap_to_edit="";

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

 	    }

 	}

     }

   else

     {

       if(mapname!="Default")

 	{

 	  double number=(*actual_map)[node];

 	  int length=1;

 	  //if number is smaller than one, length would be negative, or invalid

 	  if(number>=1)

 	    {

 	      length=(int)(floor(log(number)/log(10)))+1;

 	    }

 	  int maxpos=(int)(pow(10,length-1));

 	  int strl=length+1+RANGE;

 	  char * str=new char[strl];

 	  str[length]='.';

 	  str[strl]='\0';

 	  for(int j=0;j<strl;j++)

 	    {

 	      if(j!=length)

 		{

 		  if((number-(int)number)>ALMOST_ONE)

 		    {

 		      number=round(number);

 		    }

 		  int digit=(int)(number/maxpos);

 		  str[j]=(digit+'0');

 		  number-=digit*maxpos;

 		  number*=10;

 		}

 	    }

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

 	}

       else

 	{

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

 	}

     }

   return 0;

 };