1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/gui/graph_displayer_canvas-edge.cc	Fri Jun 24 07:58:18 2005 +0000
     1.3 @@ -0,0 +1,93 @@
     1.4 +#include <graph_displayer_canvas.h>
     1.5 +#include <broken_edge.h>
     1.6 +#include <math.h>
     1.7 +
     1.8 +
     1.9 +int GraphDisplayerCanvas::changeLineWidth (std::string mapname)
    1.10 +{
    1.11 +  for (EdgeIt i(g); i!=INVALID; ++i)
    1.12 +    {
    1.13 +      int w=(int)(*(mapstorage.edgemap_storage)[mapname])[i];
    1.14 +      if(w>=0)
    1.15 +	{
    1.16 +	  edgesmap[i]->property_width_pixels().set_value(w);
    1.17 +	}
    1.18 +    }
    1.19 +  return 0;
    1.20 +};
    1.21 +
    1.22 +int GraphDisplayerCanvas::changeColor (std::string mapname)
    1.23 +{  
    1.24 +
    1.25 +  //function maps the range of the maximum and
    1.26 +  //the minimum of the nodemap to the range of
    1.27 +  //green in RGB
    1.28 +
    1.29 +  for (EdgeIt i(g); i!=INVALID; ++i)
    1.30 +  {
    1.31 +    double w=(*(mapstorage.edgemap_storage)[mapname])[i];
    1.32 +    double max=mapstorage.maxOfEdgeMap(mapname);
    1.33 +    double min=mapstorage.minOfEdgeMap(mapname);
    1.34 +      
    1.35 +    //std::cout<<w<<" "<<max<<" "<<min<<" "<<100*(w-min)/(max-min)<<std::endl;
    1.36 +    Gdk::Color color;
    1.37 +    if(max!=min)
    1.38 +    {
    1.39 +      color.set_rgb_p (0, 100*(w-min)/(max-min), 0);
    1.40 +    }
    1.41 +    else
    1.42 +    {
    1.43 +      color.set_rgb_p (0, 100, 0);
    1.44 +    }
    1.45 +
    1.46 +    edgesmap[i]->property_fill_color_gdk().set_value(color);
    1.47 +  }
    1.48 +  return 0;
    1.49 +};
    1.50 +
    1.51 +int GraphDisplayerCanvas::changeText (std::string mapname)
    1.52 +{
    1.53 +
    1.54 +  //the number in the map will be written on the edge
    1.55 +  //EXCEPT when the name of the map is Text, because
    1.56 +  //in that case empty string will be written, because
    1.57 +  //that is the deleter map
    1.58 +  //\todo isn't it a bit woodcutter?
    1.59 +
    1.60 +  for (EdgeIt i(g); i!=INVALID; ++i)
    1.61 +    {
    1.62 +      if(mapname!="Text")
    1.63 +	{
    1.64 +	  double number=(*(mapstorage.edgemap_storage)[mapname])[i];
    1.65 +	  int length=1;
    1.66 +	  //if number is smaller than one, length would be negative, or invalid
    1.67 +	  if(number>=1)
    1.68 +	    {
    1.69 +	      length=(int)(floor(log(number)/log(10)))+1;
    1.70 +	    }
    1.71 +	  int maxpos=(int)(pow(10,length-1));
    1.72 +	  int strl=length+1+RANGE;
    1.73 +	  char * str=new char[strl];
    1.74 +	  str[length]='.';
    1.75 +	  str[strl]='\0';
    1.76 +      
    1.77 +	  for(int j=0;j<strl;j++)
    1.78 +	    {
    1.79 +	      if(j!=length)
    1.80 +		{
    1.81 +		  int digit=(int)(number/maxpos);
    1.82 +		  str[j]=(digit+'0');
    1.83 +		  number-=digit*maxpos;
    1.84 +		  number*=10;
    1.85 +		}
    1.86 +	    }
    1.87 +      
    1.88 +	  edgetextmap[i]->property_text().set_value(str);
    1.89 +	}
    1.90 +      else
    1.91 +	{
    1.92 +	  edgetextmap[i]->property_text().set_value("");
    1.93 +	}
    1.94 +    }
    1.95 +  return 0;
    1.96 +};