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graph_displayer_canvas-node.cc
author hegyi
Fri, 24 Jun 2005 18:16:12 +0000
branchgui
changeset 28 fa28f1071bd6
child 31 66e85f44a66f
permissions -rwxr-xr-x
NodeMap values are now visualizable. Todo: default map-values 
     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 };
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