hegyi@1510: #include <graph_displayer_canvas.h>
hegyi@1510: #include <broken_edge.h>
hegyi@1510: #include <math.h>
hegyi@1510: 
hegyi@1510: 
hegyi@1510: int GraphDisplayerCanvas::changeLineWidth (std::string mapname)
hegyi@1510: {
hegyi@1510:   for (EdgeIt i(g); i!=INVALID; ++i)
hegyi@1510:     {
hegyi@1510:       int w=(int)(*(mapstorage.edgemap_storage)[mapname])[i];
hegyi@1510:       if(w>=0)
hegyi@1510: 	{
hegyi@1510: 	  edgesmap[i]->property_width_pixels().set_value(w);
hegyi@1510: 	}
hegyi@1510:     }
hegyi@1510:   return 0;
hegyi@1510: };
hegyi@1510: 
hegyi@1510: int GraphDisplayerCanvas::changeColor (std::string mapname)
hegyi@1510: {  
hegyi@1510: 
hegyi@1510:   //function maps the range of the maximum and
hegyi@1510:   //the minimum of the nodemap to the range of
hegyi@1510:   //green in RGB
hegyi@1510: 
hegyi@1510:   for (EdgeIt i(g); i!=INVALID; ++i)
hegyi@1510:   {
hegyi@1510:     double w=(*(mapstorage.edgemap_storage)[mapname])[i];
hegyi@1510:     double max=mapstorage.maxOfEdgeMap(mapname);
hegyi@1510:     double min=mapstorage.minOfEdgeMap(mapname);
hegyi@1510:       
hegyi@1510:     //std::cout<<w<<" "<<max<<" "<<min<<" "<<100*(w-min)/(max-min)<<std::endl;
hegyi@1510:     Gdk::Color color;
hegyi@1510:     if(max!=min)
hegyi@1510:     {
hegyi@1510:       color.set_rgb_p (0, 100*(w-min)/(max-min), 0);
hegyi@1510:     }
hegyi@1510:     else
hegyi@1510:     {
hegyi@1510:       color.set_rgb_p (0, 100, 0);
hegyi@1510:     }
hegyi@1510: 
hegyi@1510:     edgesmap[i]->property_fill_color_gdk().set_value(color);
hegyi@1510:   }
hegyi@1510:   return 0;
hegyi@1510: };
hegyi@1510: 
hegyi@1510: int GraphDisplayerCanvas::changeText (std::string mapname)
hegyi@1510: {
hegyi@1510: 
hegyi@1510:   //the number in the map will be written on the edge
hegyi@1510:   //EXCEPT when the name of the map is Text, because
hegyi@1510:   //in that case empty string will be written, because
hegyi@1510:   //that is the deleter map
hegyi@1510:   //\todo isn't it a bit woodcutter?
hegyi@1510: 
hegyi@1510:   for (EdgeIt i(g); i!=INVALID; ++i)
hegyi@1510:     {
hegyi@1510:       if(mapname!="Text")
hegyi@1510: 	{
hegyi@1510: 	  double number=(*(mapstorage.edgemap_storage)[mapname])[i];
hegyi@1510: 	  int length=1;
hegyi@1510: 	  //if number is smaller than one, length would be negative, or invalid
hegyi@1510: 	  if(number>=1)
hegyi@1510: 	    {
hegyi@1510: 	      length=(int)(floor(log(number)/log(10)))+1;
hegyi@1510: 	    }
hegyi@1510: 	  int maxpos=(int)(pow(10,length-1));
hegyi@1510: 	  int strl=length+1+RANGE;
hegyi@1510: 	  char * str=new char[strl];
hegyi@1510: 	  str[length]='.';
hegyi@1510: 	  str[strl]='\0';
hegyi@1510:       
hegyi@1510: 	  for(int j=0;j<strl;j++)
hegyi@1510: 	    {
hegyi@1510: 	      if(j!=length)
hegyi@1510: 		{
hegyi@1510: 		  int digit=(int)(number/maxpos);
hegyi@1510: 		  str[j]=(digit+'0');
hegyi@1510: 		  number-=digit*maxpos;
hegyi@1510: 		  number*=10;
hegyi@1510: 		}
hegyi@1510: 	    }
hegyi@1510:       
hegyi@1510: 	  edgetextmap[i]->property_text().set_value(str);
hegyi@1510: 	}
hegyi@1510:       else
hegyi@1510: 	{
hegyi@1510: 	  edgetextmap[i]->property_text().set_value("");
hegyi@1510: 	}
hegyi@1510:     }
hegyi@1510:   return 0;
hegyi@1510: };