ladanyi@6: #include <graph_displayer_canvas.h>
hegyi@17: #include <broken_edge.h>
ladanyi@6: #include <math.h>
ladanyi@6: 
hegyi@20: GraphDisplayerCanvas::GraphDisplayerCanvas(Graph & gr, CoordinatesMap & cm, MapStorage & ms):g(gr),nodesmap(g),edgesmap(g),edgetextmap(g),displayed_graph(*(root()), 0, 0),mapstorage(ms),isbutton(0),active_item(NULL),target_item(NULL)
ladanyi@6: {
hegyi@9:   
hegyi@21:   actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::create_node_event_handler), false);
hegyi@21:   actual_tool=CREATE_NODE;
hegyi@9: 
hegyi@12:   active_node=INVALID;
hegyi@12:   active_edge=INVALID;
hegyi@12: 
ladanyi@6:   //set_center_scroll_region(true);
ladanyi@6: 
ladanyi@6:   //first edges are drawn, to hide joining with nodes later
ladanyi@6: 
ladanyi@6:   for (EdgeIt i(g); i!=INVALID; ++i)
ladanyi@6:   {
ladanyi@6: 
ladanyi@6:     //drawing green lines, coordinates are from cm
ladanyi@6: 
ladanyi@6:     Gnome::Canvas::Points coos;
ladanyi@6:     coos.push_back(Gnome::Art::Point(cm[g.source(i)].x,cm[g.source(i)].y));
ladanyi@6:     coos.push_back(Gnome::Art::Point(cm[g.target(i)].x,cm[g.target(i)].y));
ladanyi@6:     
hegyi@21:     edgesmap[i]=new BrokenEdge(displayed_graph, coos, *this);
ladanyi@6:     *(edgesmap[i]) << Gnome::Canvas::Properties::fill_color("green");
ladanyi@6:     edgesmap[i]->property_width_pixels().set_value(10);    
ladanyi@6:     
ladanyi@6:     //initializing edge-text as well, to empty string
ladanyi@6: 
hegyi@25:     xy<double> text_pos=edgesmap[i]->get_arrow_pos();
hegyi@25:     text_pos+=(xy<double>(10,10));
hegyi@25: 
hegyi@25:     edgetextmap[i]=new Gnome::Canvas::Text(displayed_graph, text_pos.x, text_pos.y, "");
ladanyi@6:     edgetextmap[i]->property_fill_color().set_value("black");
ladanyi@6:   }
ladanyi@6: 
ladanyi@6:   //afterwards nodes come to be drawn
ladanyi@6: 
ladanyi@6:   NodeIt i(g);
ladanyi@6:   int maxx=0, maxy=0, minx=(int)cm[i].x, miny=(int)cm[i].y;
ladanyi@6: 
ladanyi@6:   for (; i!=INVALID; ++i)
ladanyi@6:   {
ladanyi@6:     //minimum and maximum is gathered to be able to zoom to the graph correctly (whole figure should be seen)
ladanyi@6: 
ladanyi@6:     if(cm[i].x>maxx)maxx=(int)cm[i].x;
ladanyi@6:     if(cm[i].y>maxy)maxy=(int)cm[i].y;
ladanyi@6:     if(cm[i].x<minx)minx=(int)cm[i].x;
ladanyi@6:     if(cm[i].y<miny)miny=(int)cm[i].y;
ladanyi@6: 
ladanyi@6:     //drawing bule nodes, with black line around them
ladanyi@6: 
ladanyi@6:     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@6:     *(nodesmap[i]) << Gnome::Canvas::Properties::fill_color("blue");
ladanyi@6:     *(nodesmap[i]) << Gnome::Canvas::Properties::outline_color("black");
hegyi@9:     //!!!!!!! (nodesmap[i])->signal_event().connect(sigc::bind(sigc::mem_fun(*this, &GraphDisplayerCanvas::event_handler),i));
ladanyi@6:   }
ladanyi@6: 
ladanyi@6:   updateScrollRegion();
ladanyi@6: }
ladanyi@6: 
ladanyi@6: GraphDisplayerCanvas::~GraphDisplayerCanvas()
ladanyi@6: {
ladanyi@6: 
ladanyi@6:   //writing out the end state of the graph
ladanyi@6:   //\todo all the maps has to be write out!
ladanyi@6: 
ladanyi@6:   Graph::NodeMap <int> id(g);
ladanyi@6:   Graph::NodeMap <double> xc(g);
ladanyi@6:   Graph::NodeMap <double> yc(g);
ladanyi@6:   
ladanyi@6:   int j=1;
ladanyi@6:   
ladanyi@6:   for (NodeIt i(g); i!=INVALID; ++i)
ladanyi@6:   {
ladanyi@6:     double x1,y1,x2,y2;
ladanyi@6:     nodesmap[i]->get_bounds(x1, y1, x2, y2);
ladanyi@6:     
ladanyi@6:     id[i]=j++;
ladanyi@6:     xc[i]=(x1+x2)/2;
ladanyi@6:     yc[i]=(y1+y2)/2;
ladanyi@6:   }
ladanyi@6: 
ladanyi@6:   GraphWriter<Graph> writer(std::cout,g);
ladanyi@6:   
ladanyi@6:   writer.writeNodeMap("id", id);
ladanyi@6:   writer.writeNodeMap("coordinates_x", xc);
ladanyi@6:   writer.writeNodeMap("coordinates_y", yc);
ladanyi@6:   writer.run();
ladanyi@6: }