ladanyi@1: #include <graph_displayer_canvas.h>
ladanyi@1: 
ladanyi@1: GraphDisplayerCanvas::GraphDisplayerCanvas(Graph & gr, CoordinatesMap & cm, MapStorage & ms):g(gr),nodesmap(g),edgesmap(g),edgetextmap(g),displayed_graph(*(root()), 0, 0),mapstorage(ms),isbutton(false),active_item(NULL)
ladanyi@1: {
ladanyi@1: 
ladanyi@1:   for (EdgeIt i(g); i!=INVALID; ++i)
ladanyi@1:   {
ladanyi@1:     Gnome::Canvas::Points coos;
ladanyi@1:     coos.push_back(Gnome::Art::Point(cm[g.source(i)].x,cm[g.source(i)].y));
ladanyi@1:     coos.push_back(Gnome::Art::Point(cm[g.target(i)].x,cm[g.target(i)].y));
ladanyi@1:     
ladanyi@1:     edgesmap[i]=new Gnome::Canvas::Line(displayed_graph, coos);
ladanyi@1:     *(edgesmap[i]) << Gnome::Canvas::Properties::fill_color("green");
ladanyi@1:     edgesmap[i]->property_width_pixels().set_value(10);
ladanyi@1:     
ladanyi@1:     
ladanyi@1:     double x1, x2, y1, y2;
ladanyi@1:     edgesmap[i]->get_bounds(x1, y1, x2, y2);
ladanyi@1:     
ladanyi@1:     edgetextmap[i]=new Gnome::Canvas::Text(displayed_graph,(x1+x2)/2, (y1+y2)/2, "");
ladanyi@1:     edgetextmap[i]->property_fill_color().set_value("black");
ladanyi@1:   }
ladanyi@1: 
ladanyi@1:   NodeIt i(g);
ladanyi@1:   int maxx=0, maxy=0, minx=(int)cm[i].x, miny=(int)cm[i].y;
ladanyi@1: 
ladanyi@1:   for (; i!=INVALID; ++i)
ladanyi@1:   {
ladanyi@1:     if(cm[i].x>maxx)maxx=(int)cm[i].x;
ladanyi@1:     if(cm[i].y>maxy)maxy=(int)cm[i].y;
ladanyi@1:     if(cm[i].x<minx)minx=(int)cm[i].x;
ladanyi@1:     if(cm[i].y<miny)miny=(int)cm[i].y;
ladanyi@1: 
ladanyi@1:     nodesmap[i]=new Gnome::Canvas::Ellipse(displayed_graph, cm[i].x-20, cm[i].y-20, cm[i].x+20, cm[i].y+20);
ladanyi@1:     *(nodesmap[i]) << Gnome::Canvas::Properties::fill_color("blue");
ladanyi@1:     *(nodesmap[i]) << Gnome::Canvas::Properties::outline_color("black");
ladanyi@1:     (nodesmap[i])->signal_event().connect(sigc::bind(sigc::mem_fun(*this, &GraphDisplayerCanvas::event_handler),i));
ladanyi@1:   }
ladanyi@1: 
ladanyi@1:   double biggest_x=(abs(maxx)>abs(minx))?(abs(maxx)+80):(abs(minx)+80);
ladanyi@1:   double biggest_y=(abs(maxy)>abs(miny))?(abs(maxy)+80):(abs(miny)+80);
ladanyi@1: 
ladanyi@1:   set_pixels_per_unit((biggest_x>biggest_y)?(WIN_WIDTH/biggest_x/2):(WIN_HEIGHT/biggest_y/2));
ladanyi@1:   std::cout<<abs(maxx)<<" "<<abs(minx)<<" big x "<<biggest_x<<" "<<abs(maxy)<<" "<<abs(miny)<<" big y "<<biggest_y<<std::endl;
ladanyi@1:   std::cout<<maxx<<" "<<minx<<" big x "<<biggest_x<<" "<<maxy<<" "<<miny<<" big y "<<biggest_y<<std::endl;
ladanyi@1:   std::cout<<"dx "<<(maxx-minx)<<" dy "<<(maxy-miny)<<" xrate "<<((maxx-minx)/WIN_WIDTH)<<" yrate "<<((maxy-miny)/WIN_HEIGHT)<<std::endl;
ladanyi@1: 
ladanyi@1: }
ladanyi@1: 
ladanyi@1: GraphDisplayerCanvas::~GraphDisplayerCanvas()
ladanyi@1: {
ladanyi@1:     Graph::NodeMap <int> id(g);
ladanyi@1:     Graph::NodeMap <double> xc(g);
ladanyi@1:     Graph::NodeMap <double> yc(g);
ladanyi@1: 
ladanyi@1:     int j=1;
ladanyi@1: 
ladanyi@1:     for (NodeIt i(g); i!=INVALID; ++i)
ladanyi@1:     {
ladanyi@1:         double x1,y1,x2,y2;
ladanyi@1:         nodesmap[i]->get_bounds(x1, y1, x2, y2);
ladanyi@1: 
ladanyi@1:         id[i]=j++;
ladanyi@1:         xc[i]=(x1+x2)/2;
ladanyi@1:         yc[i]=(y1+y2)/2;
ladanyi@1:     }
ladanyi@1: 
ladanyi@1:     GraphWriter<Graph> writer(std::cout,g);
ladanyi@1: 
ladanyi@1:     writer.writeNodeMap("id", id);
ladanyi@1:     writer.writeNodeMap("coordinates_x", xc);
ladanyi@1:     writer.writeNodeMap("coordinates_y", yc);
ladanyi@1:     writer.run();
ladanyi@1: }
ladanyi@1: 
ladanyi@1: int GraphDisplayerCanvas::changeLineWidth (std::string mapname)
ladanyi@1: {
ladanyi@1:   for (EdgeIt i(g); i!=INVALID; ++i)
ladanyi@1:   {
ladanyi@1:     int w=(int)(*(mapstorage.edgemap_storage)[mapname])[i];
ladanyi@1:     edgesmap[i]->property_width_pixels().set_value(w);
ladanyi@1:   }
ladanyi@1:   return 0;
ladanyi@1: };
ladanyi@1: 
ladanyi@1: int GraphDisplayerCanvas::changeColor (std::string mapname)
ladanyi@1: {  
ladanyi@1:   for (EdgeIt i(g); i!=INVALID; ++i)
ladanyi@1:   {
ladanyi@1:     double w=(*(mapstorage.edgemap_storage)[mapname])[i];
ladanyi@1:     double max=mapstorage.maxOfEdgeMap(mapname);
ladanyi@1:     double min=mapstorage.minOfEdgeMap(mapname);
ladanyi@1:       
ladanyi@1:     //std::cout<<w<<" "<<max<<" "<<min<<" "<<100*(w-min)/(max-min)<<std::endl;
ladanyi@1:     Gdk::Color color;
ladanyi@1:     if(max!=min)
ladanyi@1:     {
ladanyi@1:       color.set_rgb_p (0, 100*(w-min)/(max-min), 0);
ladanyi@1:     }
ladanyi@1:     else
ladanyi@1:     {
ladanyi@1:       color.set_rgb_p (0, 100, 0);
ladanyi@1:     }
ladanyi@1: 
ladanyi@1:     edgesmap[i]->property_fill_color_gdk().set_value(color);
ladanyi@1:   }
ladanyi@1:   return 0;
ladanyi@1: };
ladanyi@1: 
ladanyi@1: int GraphDisplayerCanvas::changeText (std::string mapname)
ladanyi@1: {
ladanyi@1:   for (EdgeIt i(g); i!=INVALID; ++i)
ladanyi@1:   {
ladanyi@1:     if(mapname!="Text")
ladanyi@1:     {
ladanyi@1:       double number=(*(mapstorage.edgemap_storage)[mapname])[i];
ladanyi@1:       int length=(int)(floor(log(number)/log(10)))+1;
ladanyi@1:       int maxpos=(int)(pow(10,length-1));
ladanyi@1:       int strl=length+1+RANGE;
ladanyi@1:       char * str=new char[strl];
ladanyi@1:       str[length]='.';
ladanyi@1:       str[strl]='\0';
ladanyi@1:       
ladanyi@1:       for(int j=0;j<strl;j++)
ladanyi@1:       {
ladanyi@1: 	if(j!=length)
ladanyi@1:         {
ladanyi@1: 	  int digit=(int)(number/maxpos);
ladanyi@1: 	  str[j]=(digit+'0');
ladanyi@1: 	  number-=digit*maxpos;
ladanyi@1: 	  number*=10;
ladanyi@1:         }
ladanyi@1:       }
ladanyi@1:       
ladanyi@1:       edgetextmap[i]->property_text().set_value(str);
ladanyi@1:     }
ladanyi@1:     else
ladanyi@1:     {
ladanyi@1:       edgetextmap[i]->property_text().set_value("");
ladanyi@1:     }
ladanyi@1:   }
ladanyi@1:   return 0;
ladanyi@1: };
ladanyi@1: 
ladanyi@1: 
ladanyi@1: int GraphDisplayerCanvas::rezoom ()
ladanyi@1: {
ladanyi@1:   double x1, x2, y1, y2;
ladanyi@1:   int x,y;
ladanyi@1: 
ladanyi@1:   NodeIt i(g);
ladanyi@1:   nodesmap[i]->get_bounds(x1, y1, x2, y2);
ladanyi@1: 
ladanyi@1:   x=(int)((x1+x2)/2);
ladanyi@1:   y=(int)((y1+y2)/2);
ladanyi@1:   
ladanyi@1:   int maxx=0, maxy=0, minx=(int)x, miny=(int)y;
ladanyi@1: 
ladanyi@1:   for (; i!=INVALID; ++i)
ladanyi@1:   {
ladanyi@1:     nodesmap[i]->get_bounds(x1, y1, x2, y2);
ladanyi@1: 
ladanyi@1:     x=(int)((x1+x2)/2);
ladanyi@1:     y=(int)((y1+y2)/2);
ladanyi@1: 
ladanyi@1:     if(x>maxx)maxx=x;
ladanyi@1:     if(y>maxy)maxy=y;
ladanyi@1:     if(x<minx)minx=x;
ladanyi@1:     if(y<miny)miny=y;
ladanyi@1:   }
ladanyi@1: 
ladanyi@1:   double biggest_x=(abs(maxx)>abs(minx))?(abs(maxx)+80):(abs(minx)+80);
ladanyi@1:   double biggest_y=(abs(maxy)>abs(miny))?(abs(maxy)+80):(abs(miny)+80);
ladanyi@1: 
ladanyi@1:   set_pixels_per_unit((biggest_x-WIN_WIDTH>biggest_y-WIN_HEIGHT)?(WIN_WIDTH/biggest_x/2):(WIN_HEIGHT/biggest_y/2));
ladanyi@1:   return 0;
ladanyi@1: };
ladanyi@1: 
ladanyi@1: 
ladanyi@1: ///This function moves only one node of displayed_graph,
ladanyi@1: ///but recalculate the location of weight point,
ladanyi@1: ///and also redraw the sides of the planefigure.
ladanyi@1: bool GraphDisplayerCanvas::event_handler(GdkEvent* e, Node n)
ladanyi@1: {
ladanyi@1:   switch(e->type)
ladanyi@1:   {
ladanyi@1:     case GDK_BUTTON_PRESS:
ladanyi@1:       clicked_x=e->button.x;
ladanyi@1:       clicked_y=e->button.y;
ladanyi@1:       active_item=(get_item_at(e->button.x, e->button.y));
ladanyi@1:       isbutton=true;
ladanyi@1:       break;
ladanyi@1:     case GDK_BUTTON_RELEASE:
ladanyi@1:       isbutton=false;
ladanyi@1:       active_item=NULL;
ladanyi@1:       break;
ladanyi@1:     case GDK_MOTION_NOTIFY:
ladanyi@1:       if(isbutton)
ladanyi@1:       {
ladanyi@1:         double dx=e->motion.x-clicked_x;
ladanyi@1:         double dy=e->motion.y-clicked_y;
ladanyi@1:         active_item->move(dx, dy);
ladanyi@1:         clicked_x=e->motion.x;
ladanyi@1:         clicked_y=e->motion.y;
ladanyi@1: 
ladanyi@1:         EdgeIt e;
ladanyi@1: 
ladanyi@1:         g.firstOut(e,n);
ladanyi@1:         for(;e!=INVALID;g.nextOut(e))
ladanyi@1:         {
ladanyi@1:             Gnome::Canvas::Points coos;
ladanyi@1:             double x1, x2, y1, y2;
ladanyi@1: 
ladanyi@1:             nodesmap[g.source(e)]->get_bounds(x1, y1, x2, y2);
ladanyi@1:             coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
ladanyi@1: 
ladanyi@1:             nodesmap[g.target(e)]->get_bounds(x1, y1, x2, y2);
ladanyi@1:             coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
ladanyi@1: 
ladanyi@1:             edgesmap[e]->property_points().set_value(coos);
ladanyi@1: 
ladanyi@1: 	    edgesmap[e]->get_bounds(x1, y1, x2, y2);
ladanyi@1: 
ladanyi@1: 	    edgetextmap[e]->property_x().set_value((x1+x2)/2);
ladanyi@1: 	    edgetextmap[e]->property_y().set_value((y1+y2)/2);
ladanyi@1:         }
ladanyi@1: 
ladanyi@1:         g.firstIn(e,n);
ladanyi@1:         for(;e!=INVALID;g.nextIn(e))
ladanyi@1:         {
ladanyi@1:             Gnome::Canvas::Points coos;
ladanyi@1:             double x1, x2, y1, y2;
ladanyi@1: 
ladanyi@1:             nodesmap[g.source(e)]->get_bounds(x1, y1, x2, y2);
ladanyi@1:             coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
ladanyi@1: 
ladanyi@1:             nodesmap[g.target(e)]->get_bounds(x1, y1, x2, y2);
ladanyi@1:             coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
ladanyi@1: 
ladanyi@1:             edgesmap[e]->property_points().set_value(coos);
ladanyi@1: 
ladanyi@1: 	    edgesmap[e]->get_bounds(x1, y1, x2, y2);
ladanyi@1: 
ladanyi@1: 	    edgetextmap[e]->property_x().set_value((x1+x2)/2);
ladanyi@1: 	    edgetextmap[e]->property_y().set_value((y1+y2)/2);
ladanyi@1:         }
ladanyi@1:       }
ladanyi@1:     default: break;
ladanyi@1:   }
ladanyi@1:   return true;
ladanyi@1: }
ladanyi@1: 
ladanyi@1: bool GraphDisplayerCanvas::on_expose_event(GdkEventExpose *event)
ladanyi@1: {
ladanyi@1:   Gnome::Canvas::CanvasAA::on_expose_event(event);
ladanyi@1:   //usleep(10000);
ladanyi@1:   //rezoom();
ladanyi@1:   return true;
ladanyi@1: }