cout->cerr, node radius and edge width is now scaled, maps are editable by clicking on texts.
1 #include <graph_displayer_canvas.h>
2 #include <broken_edge.h>
5 GraphDisplayerCanvas::GraphDisplayerCanvas(Graph & gr, CoordinatesMap & cm, MapStorage & ms, MapWin * mw):g(gr),nodesmap(g),edgesmap(g),edgetextmap(g),nodetextmap(g),displayed_graph(*(root()), 0, 0),canvasentrywidget(NULL),mapstorage(ms),isbutton(0),active_item(NULL),target_item(NULL),nodemap_to_edit(""),edgemap_to_edit(""),mapwin(mw)
13 //setting event handler for the editor widget
14 entrywidget.signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::entryWidgetChangeHandler), false);
16 //base event handler is move tool
17 actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::moveEventHandler), false);
20 //set_center_scroll_region(true);
22 //first edges are drawn, to hide joining with nodes later
24 for (EdgeIt i(g); i!=INVALID; ++i)
27 //drawing green lines, coordinates are from cm
29 Gnome::Canvas::Points coos;
30 coos.push_back(Gnome::Art::Point(cm[g.source(i)].x,cm[g.source(i)].y));
31 coos.push_back(Gnome::Art::Point(cm[g.target(i)].x,cm[g.target(i)].y));
33 edgesmap[i]=new BrokenEdge(displayed_graph, coos, *this);
34 *(edgesmap[i]) << Gnome::Canvas::Properties::fill_color("green");
35 edgesmap[i]->property_width_units().set_value(10);
37 //initializing edge-text as well, to empty string
39 xy<double> text_pos=edgesmap[i]->getArrowPos();
40 text_pos+=(xy<double>(10,10));
42 edgetextmap[i]=new Gnome::Canvas::Text(displayed_graph, text_pos.x, text_pos.y, "");
43 edgetextmap[i]->property_fill_color().set_value("darkgreen");
44 edgetextmap[i]->signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::edgeMapEditEventHandler), false);
47 //afterwards nodes come to be drawn
50 int maxx=0, maxy=0, minx=(int)cm[i].x, miny=(int)cm[i].y;
52 for (; i!=INVALID; ++i)
54 //minimum and maximum is gathered to be able to zoom to the graph correctly (whole figure should be seen)
56 if(cm[i].x>maxx)maxx=(int)cm[i].x;
57 if(cm[i].y>maxy)maxy=(int)cm[i].y;
58 if(cm[i].x<minx)minx=(int)cm[i].x;
59 if(cm[i].y<miny)miny=(int)cm[i].y;
61 //drawing bule nodes, with black line around them
63 nodesmap[i]=new Gnome::Canvas::Ellipse(displayed_graph, cm[i].x-20, cm[i].y-20, cm[i].x+20, cm[i].y+20);
64 *(nodesmap[i]) << Gnome::Canvas::Properties::fill_color("blue");
65 *(nodesmap[i]) << Gnome::Canvas::Properties::outline_color("black");
67 //initializing edge-text as well, to empty string
69 xy<double> text_pos((cm[i].x+node_property_defaults[N_RADIUS]+5),(cm[i].y+node_property_defaults[N_RADIUS]+5));
71 nodetextmap[i]=new Gnome::Canvas::Text(displayed_graph, text_pos.x, text_pos.y, "");
72 nodetextmap[i]->property_fill_color().set_value("darkblue");
73 nodetextmap[i]->signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::nodeMapEditEventHandler), false);
79 GraphDisplayerCanvas::~GraphDisplayerCanvas()
83 delete(canvasentrywidget);
86 //writing out the end state of the graph
87 //\todo all the maps has to be write out!
89 Graph::NodeMap <int> id(g);
90 Graph::NodeMap <double> xc(g);
91 Graph::NodeMap <double> yc(g);
95 for (NodeIt i(g); i!=INVALID; ++i)
98 nodesmap[i]->get_bounds(x1, y1, x2, y2);
105 GraphWriter<Graph> writer(std::cout,g);
107 writer.writeNodeMap("id", id);
108 writer.writeNodeMap("coordinates_x", xc);
109 writer.writeNodeMap("coordinates_y", yc);