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graph_displayer_canvas-node.cc
author hegyi
Mon, 02 Oct 2006 18:52:00 +0000
changeset 157 7e6ad28aeb9e
parent 156 c5cdf6690cdf
child 174 95872af46fc4
permissions -rwxr-xr-x
View settings also for edges. 
     1 #include "graph_displayer_canvas.h"

     2 #include <cmath>

     3 

     4 const int minimum_node_radius=5;

     5 

     6 int GraphDisplayerCanvas::changeNodeRadius (std::string mapname, Node node)

     7 {

     8   Graph::NodeMap<double> * actual_map;

     9   double min, max;

    10   min=(mytab.mapstorage).minOfNodeMap(mapname);

    11   max=(mytab.mapstorage).maxOfNodeMap(mapname);

    12   actual_map=((mytab.mapstorage).nodemap_storage)[mapname];

    13 

    14   if(node==INVALID)

    15     {

    16       for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i)

    17 	{

    18 	  double v=fabs((*actual_map)[i]);

    19 	  int w;

    20 	  if(autoscale)

    21 	    {

    22 	      if(min==max)

    23 		{

    24 		  w=(int)(node_property_defaults[N_RADIUS]);

    25 		}

    26 	      else

    27 		{

    28 		  w=(int)(minimum_node_radius+(v-min)/(max-min)*(radius_size-minimum_node_radius));

    29 		}

    30 	    }

    31 	  else

    32 	    {

    33 	      w=(int)(v*radius_size);

    34 	    }

    35 

    36 	  if(w<minimum_node_radius)

    37 	    {

    38 	      w=minimum_node_radius;

    39 	    }

    40 

    41 	  if(zoomtrack)

    42 	    {

    43 	      double actual_ppu=get_pixels_per_unit();

    44 	      w=(int)(w/actual_ppu*fixed_zoom_factor);

    45 	    }

    46 

    47 	  if(w>=0)

    48 	    {

    49 	      double x1, y1, x2, y2;

    50 	      x1=nodesmap[i]->property_x1().get_value();

    51 	      x2=nodesmap[i]->property_x2().get_value();

    52 	      y1=nodesmap[i]->property_y1().get_value();

    53 	      y2=nodesmap[i]->property_y2().get_value();

    54 	      nodesmap[i]->property_x1().set_value((x1+x2)/2-w);

    55 	      nodesmap[i]->property_x2().set_value((x1+x2)/2+w);

    56 	      nodesmap[i]->property_y1().set_value((y1+y2)/2-w);

    57 	      nodesmap[i]->property_y2().set_value((y1+y2)/2+w);

    58 	    }

    59 	}

    60     }

    61   else

    62     {

    63       //I think only new nodes use this case

    64       //that has no own value, only the default one

    65       //int w=(int)(*actual_map)[node];

    66       int w=(int)(node_property_defaults[N_RADIUS]);

    67       if(w>=0)

    68 	{

    69 	  double x1, y1, x2, y2;

    70 	  x1=nodesmap[node]->property_x1().get_value();

    71 	  x2=nodesmap[node]->property_x2().get_value();

    72 	  y1=nodesmap[node]->property_y1().get_value();

    73 	  y2=nodesmap[node]->property_y2().get_value();

    74 	  nodesmap[node]->property_x1().set_value((x1+x2)/2-w);

    75 	  nodesmap[node]->property_x2().set_value((x1+x2)/2+w);

    76 	  nodesmap[node]->property_y1().set_value((y1+y2)/2-w);

    77 	  nodesmap[node]->property_y2().set_value((y1+y2)/2+w);

    78 	}

    79     }

    80   return 0;

    81 };

    82 

    83 int GraphDisplayerCanvas::resetNodeRadius (Node node)

    84 {

    85   double min, max;

    86   min=node_property_defaults[N_RADIUS];

    87   max=node_property_defaults[N_RADIUS];

    88   Graph::NodeMap<double> actual_map((mytab.mapstorage).graph,node_property_defaults[N_RADIUS]);

    89   

    90   if(node==INVALID)

    91     {

    92       for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i)

    93 	{

    94 	  double v=fabs(actual_map[i]);

    95 	  int w;

    96 	  if(min==max)

    97 	    {

    98 	      w=(int)(node_property_defaults[N_RADIUS]);

    99 	    }

   100 	  else

   101 	    {

   102 	      w=(int)(MIN_NODE_RADIUS+(v-min)/(max-min)*(MAX_NODE_RADIUS-MIN_NODE_RADIUS));

   103 	    }

   104 	  if(zoomtrack)

   105 	    {

   106 	      double actual_ppu=get_pixels_per_unit();

   107 	      w=(int)(w/actual_ppu*fixed_zoom_factor);

   108 	    }

   109 	  if(w>=0)

   110 	    {

   111 	      double x1, y1, x2, y2;

   112 	      x1=nodesmap[i]->property_x1().get_value();

   113 	      x2=nodesmap[i]->property_x2().get_value();

   114 	      y1=nodesmap[i]->property_y1().get_value();

   115 	      y2=nodesmap[i]->property_y2().get_value();

   116 	      nodesmap[i]->property_x1().set_value((x1+x2)/2-w);

   117 	      nodesmap[i]->property_x2().set_value((x1+x2)/2+w);

   118 	      nodesmap[i]->property_y1().set_value((y1+y2)/2-w);

   119 	      nodesmap[i]->property_y2().set_value((y1+y2)/2+w);

   120 	    }

   121 	}

   122     }

   123   else

   124     {

   125       //I think only new nodes use this case

   126 //       int w=(int)actual_map[node];

   127       int w=(int)(node_property_defaults[N_RADIUS]);

   128       if(w>=0)

   129 	{

   130 	  double x1, y1, x2, y2;

   131 	  x1=nodesmap[node]->property_x1().get_value();

   132 	  x2=nodesmap[node]->property_x2().get_value();

   133 	  y1=nodesmap[node]->property_y1().get_value();

   134 	  y2=nodesmap[node]->property_y2().get_value();

   135 	  nodesmap[node]->property_x1().set_value((x1+x2)/2-w);

   136 	  nodesmap[node]->property_x2().set_value((x1+x2)/2+w);

   137 	  nodesmap[node]->property_y1().set_value((y1+y2)/2-w);

   138 	  nodesmap[node]->property_y2().set_value((y1+y2)/2+w);

   139 	}

   140     }

   141   return 0;

   142 };

   143 

   144 int GraphDisplayerCanvas::changeNodeColor (std::string mapname, Node node)

   145 {  

   146 

   147   //function maps the range of the maximum and

   148   //the minimum of the nodemap to the range of

   149   //green in RGB

   150 

   151   Graph::NodeMap<double> * actual_map;

   152   actual_map=((mytab.mapstorage).nodemap_storage)[mapname];

   153 

   154   double max, min;

   155 

   156   max=(mytab.mapstorage).maxOfNodeMap(mapname);

   157   min=(mytab.mapstorage).minOfNodeMap(mapname);

   158 

   159   if(node==INVALID)

   160     {

   161 

   162       for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i)

   163 	{

   164 	  Gdk::Color color;

   165 

   166 	  double w=(*actual_map)[i];

   167 

   168 	  if(max!=min)

   169 	    {

   170 	      color.set_rgb_p (0, 0, 100*(w-min)/(max-min));

   171 	    }

   172 	  else

   173 	    {

   174 	      color.set_rgb_p (0, 0, 100);

   175 	    }

   176 

   177 	  nodesmap[i]->property_fill_color_gdk().set_value(color);

   178 	}

   179     }

   180   else

   181     {

   182       Gdk::Color color;

   183 

   184       double w=(*actual_map)[node];

   185 

   186       if(max!=min)

   187 	{

   188 	  color.set_rgb_p (0, 0, 100*(w-min)/(max-min));

   189 	}

   190       else

   191 	{

   192 	  color.set_rgb_p (0, 0, 100);

   193 	}

   194 

   195       nodesmap[node]->property_fill_color_gdk().set_value(color);

   196     }

   197   return 0;

   198 };

   199 

   200 int GraphDisplayerCanvas::resetNodeColor (Node node)

   201 {  

   202 

   203   //function maps the range of the maximum and

   204   //the minimum of the nodemap to the range of

   205   //green in RGB

   206 

   207   Graph::NodeMap<double> actual_map((mytab.mapstorage).graph,node_property_defaults[N_COLOR]);

   208 

   209   double max, min;

   210 

   211   max=node_property_defaults[N_COLOR];

   212   min=node_property_defaults[N_COLOR];

   213 

   214   if(node==INVALID)

   215     {

   216 

   217       for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i)

   218 	{

   219 	  Gdk::Color color;

   220 

   221 	  double w=actual_map[i];

   222 

   223 	  if(max!=min)

   224 	    {

   225 	      color.set_rgb_p (0, 0, 100*(w-min)/(max-min));

   226 	    }

   227 	  else

   228 	    {

   229 	      color.set_rgb_p (0, 0, 100);

   230 	    }

   231 

   232 	  nodesmap[i]->property_fill_color_gdk().set_value(color);

   233 	}

   234     }

   235   else

   236     {

   237       Gdk::Color color;

   238 

   239       double w=actual_map[node];

   240 

   241       if(max!=min)

   242 	{

   243 	  color.set_rgb_p (0, 0, 100*(w-min)/(max-min));

   244 	}

   245       else

   246 	{

   247 	  color.set_rgb_p (0, 0, 100);

   248 	}

   249 

   250       nodesmap[node]->property_fill_color_gdk().set_value(color);

   251     }

   252   return 0;

   253 };

   254 

   255 int GraphDisplayerCanvas::changeNodeText (std::string mapname, Node node)

   256 {

   257 

   258   //the number in the map will be written on the node

   259   //EXCEPT when the name of the map is Text, because

   260   //in that case empty string will be written, because

   261   //that is the deleter map

   262 

   263   Graph::NodeMap<double> * actual_map=NULL;

   264   actual_map=((mytab.mapstorage).nodemap_storage)[mapname];

   265 

   266   if(node==INVALID)

   267     {

   268       for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i)

   269 	{

   270 	  nodemap_to_edit=mapname;

   271 	  double number=(*actual_map)[i];

   272 

   273 	  std::ostringstream ostr;

   274 	  ostr << number;

   275 	      

   276 	  nodetextmap[i]->property_text().set_value(ostr.str());

   277 	}

   278     }

   279   else

   280     {

   281       double number=(*actual_map)[node];

   282 

   283       std::ostringstream ostr;

   284       ostr << number;

   285 	      

   286       nodetextmap[node]->property_text().set_value(ostr.str());

   287     }

   288   return 0;

   289 };

   290 

   291 int GraphDisplayerCanvas::resetNodeText (Node node)

   292 {

   293 

   294   //the number in the map will be written on the node

   295   //EXCEPT when the name of the map is Text, because

   296   //in that case empty string will be written, because

   297   //that is the deleter map

   298 

   299   if(node==INVALID)

   300     {

   301       for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i)

   302 	{

   303 	  nodemap_to_edit="";

   304 	  nodetextmap[i]->property_text().set_value("");

   305 	}

   306     }

   307   else

   308     {

   309       nodetextmap[node]->property_text().set_value("");

   310     }

   311   return 0;

   312 };
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