graph_displayer_canvas-node.cc
branchgui
changeset 28 fa28f1071bd6
child 31 66e85f44a66f
equal deleted inserted replaced
-1:000000000000 0:215fe8796d19
       
     1 #include <graph_displayer_canvas.h>
       
     2 #include <broken_edge.h>
       
     3 #include <math.h>
       
     4 
       
     5 
       
     6 int GraphDisplayerCanvas::changeNodeRadius (std::string mapname, Graph::Node node)
       
     7 {
       
     8   if(node==INVALID)
       
     9     {
       
    10       for (NodeIt i(g); i!=INVALID; ++i)
       
    11 	{
       
    12 	  int w=(int)(*(mapstorage.nodemap_storage)[mapname])[i];
       
    13 	  if(w>=0)
       
    14 	    {
       
    15 	      double x1, y1, x2, y2;
       
    16 	      nodesmap[i]->get_bounds(x1, y1, x2, y2);
       
    17 	      nodesmap[i]->property_x1().set_value((x1+x2)/2-w);
       
    18 	      nodesmap[i]->property_x2().set_value((x1+x2)/2+w);
       
    19 	      nodesmap[i]->property_y1().set_value((y1+y2)/2-w);
       
    20 	      nodesmap[i]->property_y2().set_value((y1+y2)/2+w);
       
    21 	    }
       
    22 	}
       
    23     }
       
    24   else
       
    25     {
       
    26       int w=(int)(*(mapstorage.nodemap_storage)[mapname])[node];
       
    27       if(w>=0)
       
    28 	{
       
    29 	  double x1, y1, x2, y2;
       
    30 	  nodesmap[node]->get_bounds(x1, y1, x2, y2);
       
    31 	  nodesmap[node]->property_x1().set_value((x1+x2)/2-w);
       
    32 	  nodesmap[node]->property_x2().set_value((x1+x2)/2+w);
       
    33 	  nodesmap[node]->property_y1().set_value((y1+y2)/2-w);
       
    34 	  nodesmap[node]->property_y2().set_value((y1+y2)/2+w);
       
    35 	}
       
    36     }
       
    37   return 0;
       
    38 };
       
    39 
       
    40 int GraphDisplayerCanvas::changeNodeColor (std::string mapname, Graph::Node node)
       
    41 {  
       
    42 
       
    43   //function maps the range of the maximum and
       
    44   //the minimum of the nodemap to the range of
       
    45   //green in RGB
       
    46 
       
    47   if(node==INVALID)
       
    48     {
       
    49 
       
    50       for (NodeIt i(g); i!=INVALID; ++i)
       
    51 	{
       
    52 	  double w=(*(mapstorage.nodemap_storage)[mapname])[i];
       
    53 	  double max=mapstorage.maxOfNodeMap(mapname);
       
    54 	  double min=mapstorage.minOfNodeMap(mapname);
       
    55       
       
    56 	  //std::cout<<w<<" "<<max<<" "<<min<<" "<<100*(w-min)/(max-min)<<std::endl;
       
    57 	  Gdk::Color color;
       
    58 	  if(max!=min)
       
    59 	    {
       
    60 	      color.set_rgb_p (0, 0, 100*(w-min)/(max-min));
       
    61 	    }
       
    62 	  else
       
    63 	    {
       
    64 	      color.set_rgb_p (0, 0, 100);
       
    65 	    }
       
    66 
       
    67 	  nodesmap[i]->property_fill_color_gdk().set_value(color);
       
    68 	}
       
    69     }
       
    70   else
       
    71     {
       
    72       double w=(*(mapstorage.nodemap_storage)[mapname])[node];
       
    73       double max=mapstorage.maxOfNodeMap(mapname);
       
    74       double min=mapstorage.minOfNodeMap(mapname);
       
    75       
       
    76       //std::cout<<w<<" "<<max<<" "<<min<<" "<<100*(w-min)/(max-min)<<std::endl;
       
    77       Gdk::Color color;
       
    78       if(max!=min)
       
    79 	{
       
    80 	  color.set_rgb_p (0, 0, 100*(w-min)/(max-min));
       
    81 	}
       
    82       else
       
    83 	{
       
    84 	  color.set_rgb_p (0, 0, 100);
       
    85 	}
       
    86 
       
    87       nodesmap[node]->property_fill_color_gdk().set_value(color);
       
    88     }
       
    89   return 0;
       
    90 };
       
    91 
       
    92 int GraphDisplayerCanvas::changeNodeText (std::string mapname, Graph::Node node)
       
    93 {
       
    94 
       
    95   //the number in the map will be written on the node
       
    96   //EXCEPT when the name of the map is Text, because
       
    97   //in that case empty string will be written, because
       
    98   //that is the deleter map
       
    99   //\todo isn't it a bit woodcutter?
       
   100 
       
   101   if(node==INVALID)
       
   102     {
       
   103       for (NodeIt i(g); i!=INVALID; ++i)
       
   104 	{
       
   105 	  if(mapname!=node_property_strings[N_TEXT])
       
   106 	    {
       
   107 	      double number=(*(mapstorage.nodemap_storage)[mapname])[i];
       
   108 	      int length=1;
       
   109 	      //if number is smaller than one, length would be negative, or invalid
       
   110 	      if(number>=1)
       
   111 		{
       
   112 		  length=(int)(floor(log(number)/log(10)))+1;
       
   113 		}
       
   114 	      int maxpos=(int)(pow(10,length-1));
       
   115 	      int strl=length+1+RANGE;
       
   116 	      char * str=new char[strl];
       
   117 	      str[length]='.';
       
   118 	      str[strl]='\0';
       
   119       
       
   120 	      for(int j=0;j<strl;j++)
       
   121 		{
       
   122 		  if(j!=length)
       
   123 		    {
       
   124 		      int digit=(int)(number/maxpos);
       
   125 		      str[j]=(digit+'0');
       
   126 		      number-=digit*maxpos;
       
   127 		      number*=10;
       
   128 		    }
       
   129 		}
       
   130       
       
   131 	      nodetextmap[i]->property_text().set_value(str);
       
   132 	    }
       
   133 	  else
       
   134 	    {
       
   135 	      nodetextmap[i]->property_text().set_value("");
       
   136 	    }
       
   137 	}
       
   138     }
       
   139   else
       
   140     {
       
   141       if(mapname!=node_property_strings[N_TEXT])
       
   142 	{
       
   143 	  double number=(*(mapstorage.nodemap_storage)[mapname])[node];
       
   144 	  int length=1;
       
   145 	  //if number is smaller than one, length would be negative, or invalid
       
   146 	  if(number>=1)
       
   147 	    {
       
   148 	      length=(int)(floor(log(number)/log(10)))+1;
       
   149 	    }
       
   150 	  int maxpos=(int)(pow(10,length-1));
       
   151 	  int strl=length+1+RANGE;
       
   152 	  char * str=new char[strl];
       
   153 	  str[length]='.';
       
   154 	  str[strl]='\0';
       
   155       
       
   156 	  for(int j=0;j<strl;j++)
       
   157 	    {
       
   158 	      if(j!=length)
       
   159 		{
       
   160 		  int digit=(int)(number/maxpos);
       
   161 		  str[j]=(digit+'0');
       
   162 		  number-=digit*maxpos;
       
   163 		  number*=10;
       
   164 		}
       
   165 	    }
       
   166       
       
   167 	  nodetextmap[node]->property_text().set_value(str);
       
   168 	}
       
   169       else
       
   170 	{
       
   171 	  nodetextmap[node]->property_text().set_value("");
       
   172 	}
       
   173     }
       
   174   return 0;
       
   175 };