hegyi@27: #include <graph_displayer_canvas.h>
hegyi@27: #include <broken_edge.h>
hegyi@27: #include <math.h>
hegyi@27: 
hegyi@27: 
hegyi@27: int GraphDisplayerCanvas::changeLineWidth (std::string mapname)
hegyi@27: {
hegyi@27:   for (EdgeIt i(g); i!=INVALID; ++i)
hegyi@27:     {
hegyi@27:       int w=(int)(*(mapstorage.edgemap_storage)[mapname])[i];
hegyi@27:       if(w>=0)
hegyi@27: 	{
hegyi@27: 	  edgesmap[i]->property_width_pixels().set_value(w);
hegyi@27: 	}
hegyi@27:     }
hegyi@27:   return 0;
hegyi@27: };
hegyi@27: 
hegyi@27: int GraphDisplayerCanvas::changeColor (std::string mapname)
hegyi@27: {  
hegyi@27: 
hegyi@27:   //function maps the range of the maximum and
hegyi@27:   //the minimum of the nodemap to the range of
hegyi@27:   //green in RGB
hegyi@27: 
hegyi@27:   for (EdgeIt i(g); i!=INVALID; ++i)
hegyi@27:   {
hegyi@27:     double w=(*(mapstorage.edgemap_storage)[mapname])[i];
hegyi@27:     double max=mapstorage.maxOfEdgeMap(mapname);
hegyi@27:     double min=mapstorage.minOfEdgeMap(mapname);
hegyi@27:       
hegyi@27:     //std::cout<<w<<" "<<max<<" "<<min<<" "<<100*(w-min)/(max-min)<<std::endl;
hegyi@27:     Gdk::Color color;
hegyi@27:     if(max!=min)
hegyi@27:     {
hegyi@27:       color.set_rgb_p (0, 100*(w-min)/(max-min), 0);
hegyi@27:     }
hegyi@27:     else
hegyi@27:     {
hegyi@27:       color.set_rgb_p (0, 100, 0);
hegyi@27:     }
hegyi@27: 
hegyi@27:     edgesmap[i]->property_fill_color_gdk().set_value(color);
hegyi@27:   }
hegyi@27:   return 0;
hegyi@27: };
hegyi@27: 
hegyi@27: int GraphDisplayerCanvas::changeText (std::string mapname)
hegyi@27: {
hegyi@27: 
hegyi@27:   //the number in the map will be written on the edge
hegyi@27:   //EXCEPT when the name of the map is Text, because
hegyi@27:   //in that case empty string will be written, because
hegyi@27:   //that is the deleter map
hegyi@27:   //\todo isn't it a bit woodcutter?
hegyi@27: 
hegyi@27:   for (EdgeIt i(g); i!=INVALID; ++i)
hegyi@27:     {
hegyi@27:       if(mapname!="Text")
hegyi@27: 	{
hegyi@27: 	  double number=(*(mapstorage.edgemap_storage)[mapname])[i];
hegyi@27: 	  int length=1;
hegyi@27: 	  //if number is smaller than one, length would be negative, or invalid
hegyi@27: 	  if(number>=1)
hegyi@27: 	    {
hegyi@27: 	      length=(int)(floor(log(number)/log(10)))+1;
hegyi@27: 	    }
hegyi@27: 	  int maxpos=(int)(pow(10,length-1));
hegyi@27: 	  int strl=length+1+RANGE;
hegyi@27: 	  char * str=new char[strl];
hegyi@27: 	  str[length]='.';
hegyi@27: 	  str[strl]='\0';
hegyi@27:       
hegyi@27: 	  for(int j=0;j<strl;j++)
hegyi@27: 	    {
hegyi@27: 	      if(j!=length)
hegyi@27: 		{
hegyi@27: 		  int digit=(int)(number/maxpos);
hegyi@27: 		  str[j]=(digit+'0');
hegyi@27: 		  number-=digit*maxpos;
hegyi@27: 		  number*=10;
hegyi@27: 		}
hegyi@27: 	    }
hegyi@27:       
hegyi@27: 	  edgetextmap[i]->property_text().set_value(str);
hegyi@27: 	}
hegyi@27:       else
hegyi@27: 	{
hegyi@27: 	  edgetextmap[i]->property_text().set_value("");
hegyi@27: 	}
hegyi@27:     }
hegyi@27:   return 0;
hegyi@27: };