#include "graph_displayer_canvas.h"

#include "broken_edge.h"

#include <cmath>

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

{

  Graph::NodeMap<double> * actual_map;

  double min, max;

  if(mapname=="Default")

    {

      min=node_property_defaults[N_RADIUS];

      max=node_property_defaults[N_RADIUS];

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

    }

  else

    {

      min=mapstorage.minOfNodeMap(mapname);

      max=mapstorage.maxOfNodeMap(mapname);

      actual_map=(mapstorage.nodemap_storage)[mapname];

    }

  if(node==INVALID)

    {

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

	{

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

	  int w;

	  if(min==max)

	    {

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

	    }

	  else

	    {

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

	    }

	  if(w>=0)

	    {

	      double x1, y1, x2, y2;

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

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

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

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

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

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

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

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

	    }

	}

    }

  else

    {

      //I think only new nodes use this case

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

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

      if(w>=0)

	{

	  double x1, y1, x2, y2;

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

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

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

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

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

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

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

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

	}

    }

  return 0;

};

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

{  

  //function maps the range of the maximum and

  //the minimum of the nodemap to the range of

  //green in RGB

  Graph::NodeMap<double> * actual_map;

  if(mapname=="Default")

    {

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

    }

  else

    {

      actual_map=(mapstorage.nodemap_storage)[mapname];

    }

  double max, min;

  if(mapname!="Default")

    {

      max=mapstorage.maxOfNodeMap(mapname);

      min=mapstorage.minOfNodeMap(mapname);

    }

  else

    {

      max=node_property_defaults[N_COLOR];

      min=node_property_defaults[N_COLOR];

    }

  if(node==INVALID)

    {

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

	{

	  Gdk::Color color;

	  double w=(*actual_map)[i];

	  if(max!=min)

	    {

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

	    }

	  else

	    {

	      color.set_rgb_p (0, 0, 100);

	    }

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

	}

    }

  else

    {

      Gdk::Color color;

      double w=(*actual_map)[node];

      if(max!=min)

	{

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

	}

      else

	{

	  color.set_rgb_p (0, 0, 100);

	}

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

    }

  return 0;

};

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

{

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

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

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

  //that is the deleter map

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

  if(mapname!="Default")

    {

      actual_map=(mapstorage.nodemap_storage)[mapname];

    }

  if(node==INVALID)

    {

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

	{

	  if(mapname!="Default")

	    {

	      nodemap_to_edit=mapname;

	      double number=(*actual_map)[i];

	      std::ostringstream ostr;

	      ostr << number;

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

	    }

	  else

	    {

	      nodemap_to_edit="";

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

	    }

	}

    }

  else

    {

      if(mapname!="Default")

	{

	  double number=(*actual_map)[node];

	  std::ostringstream ostr;

	  ostr << number;

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

	}

      else

	{

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

	}

    }

  return 0;

};