ladanyi@1606: #include "graph_displayer_canvas.h"
ladanyi@1606: #include "broken_edge.h"
ladanyi@1442: #include <math.h>
ladanyi@1442: 
ladanyi@1606: GraphDisplayerCanvas::GraphDisplayerCanvas(MapStorage & ms, MapWin & mw) :
ladanyi@1606:   nodesmap(ms.graph), edgesmap(ms.graph), edgetextmap(ms.graph),
ladanyi@1606:   nodetextmap(ms.graph), displayed_graph(*(root()), 0, 0),
ladanyi@1606:   canvasentrywidget(NULL), mapstorage(ms), isbutton(0), active_item(NULL),
ladanyi@1606:   target_item(NULL), nodemap_to_edit(""), edgemap_to_edit(""), mapwin(mw)
ladanyi@1442: {
ladanyi@1606:   //base event handler is move tool
ladanyi@1606:   actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::moveEventHandler), false);
ladanyi@1606:   actual_tool=MOVE;
hegyi@1562: 
hegyi@1562:   //setting event handler for the editor widget
hegyi@1562:   entrywidget.signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::entryWidgetChangeHandler), false);
hegyi@1562: 
ladanyi@1606:   active_node=INVALID;
ladanyi@1606:   active_edge=INVALID;
ladanyi@1606:   forming_edge=INVALID;
ladanyi@1606: }
hegyi@1468: 
ladanyi@1606: GraphDisplayerCanvas::~GraphDisplayerCanvas()
ladanyi@1606: {
ladanyi@1606:   for (NodeIt n(mapstorage.graph); n != INVALID; ++n)
ladanyi@1606:   {
ladanyi@1606:     delete nodesmap[n];
ladanyi@1606:     delete nodetextmap[n];
ladanyi@1606:   }
ladanyi@1442: 
ladanyi@1606:   for (EdgeIt e(mapstorage.graph); e != INVALID; ++e)
ladanyi@1606:   {
ladanyi@1606:     delete edgesmap[e];
ladanyi@1606:     delete edgetextmap[e];
ladanyi@1606:   }
ladanyi@1606: 
ladanyi@1606:   if(canvasentrywidget)
ladanyi@1606:   {
ladanyi@1606:     delete(canvasentrywidget);
ladanyi@1606:   }
ladanyi@1606: }
ladanyi@1606: 
ladanyi@1606: void GraphDisplayerCanvas::drawGraph()
ladanyi@1606: {
ladanyi@1442:   //first edges are drawn, to hide joining with nodes later
ladanyi@1442: 
ladanyi@1606:   for (EdgeIt i(mapstorage.graph); i!=INVALID; ++i)
ladanyi@1442:   {
ladanyi@1442: 
ladanyi@1606:     //drawing green lines, coordinates are from mapstorage.coords
ladanyi@1442: 
ladanyi@1442:     Gnome::Canvas::Points coos;
ladanyi@1606:     coos.push_back(Gnome::Art::Point(
ladanyi@1606:           mapstorage.coords[mapstorage.graph.source(i)].x,
ladanyi@1606:           mapstorage.coords[mapstorage.graph.source(i)].y));
ladanyi@1606:     coos.push_back(Gnome::Art::Point(
ladanyi@1606:           mapstorage.coords[mapstorage.graph.target(i)].x,
ladanyi@1606:           mapstorage.coords[mapstorage.graph.target(i)].y));
ladanyi@1442:     
hegyi@1501:     edgesmap[i]=new BrokenEdge(displayed_graph, coos, *this);
ladanyi@1442:     *(edgesmap[i]) << Gnome::Canvas::Properties::fill_color("green");
hegyi@1598:     edgesmap[i]->property_width_units().set_value(10);    
ladanyi@1442:     
ladanyi@1442:     //initializing edge-text as well, to empty string
ladanyi@1442: 
hegyi@1524:     xy<double> text_pos=edgesmap[i]->getArrowPos();
hegyi@1505:     text_pos+=(xy<double>(10,10));
hegyi@1505: 
hegyi@1505:     edgetextmap[i]=new Gnome::Canvas::Text(displayed_graph, text_pos.x, text_pos.y, "");
hegyi@1512:     edgetextmap[i]->property_fill_color().set_value("darkgreen");
hegyi@1599:     edgetextmap[i]->signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::edgeMapEditEventHandler), false);
ladanyi@1442:   }
ladanyi@1442: 
ladanyi@1442:   //afterwards nodes come to be drawn
ladanyi@1442: 
ladanyi@1606:   for (NodeIt i(mapstorage.graph); i!=INVALID; ++i)
ladanyi@1442:   {
ladanyi@1442:     //drawing bule nodes, with black line around them
ladanyi@1442: 
ladanyi@1606:     nodesmap[i]=new Gnome::Canvas::Ellipse(
ladanyi@1606:         displayed_graph,
ladanyi@1606:         mapstorage.coords[i].x-20,
ladanyi@1606:         mapstorage.coords[i].y-20,
ladanyi@1606:         mapstorage.coords[i].x+20,
ladanyi@1606:         mapstorage.coords[i].y+20);
ladanyi@1442:     *(nodesmap[i]) << Gnome::Canvas::Properties::fill_color("blue");
ladanyi@1442:     *(nodesmap[i]) << Gnome::Canvas::Properties::outline_color("black");
hegyi@1512: 
hegyi@1512:     //initializing edge-text as well, to empty string
hegyi@1512: 
ladanyi@1606:     xy<double> text_pos(
ladanyi@1606:         (mapstorage.coords[i].x+node_property_defaults[N_RADIUS]+5),
ladanyi@1606:         (mapstorage.coords[i].y+node_property_defaults[N_RADIUS]+5));
hegyi@1512: 
ladanyi@1606:     nodetextmap[i]=new Gnome::Canvas::Text(displayed_graph,
ladanyi@1606:         text_pos.x, text_pos.y, "");
hegyi@1512:     nodetextmap[i]->property_fill_color().set_value("darkblue");
hegyi@1599:     nodetextmap[i]->signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::nodeMapEditEventHandler), false);
ladanyi@1442:   }
ladanyi@1442: 
ladanyi@1442:   updateScrollRegion();
ladanyi@1442: }
ladanyi@1442: 
ladanyi@1606: void GraphDisplayerCanvas::clear()
ladanyi@1442: {
ladanyi@1606:   active_node=INVALID;
ladanyi@1606:   active_edge=INVALID;
ladanyi@1606:   forming_edge=INVALID;
ladanyi@1442: 
ladanyi@1606:   for (NodeIt n(mapstorage.graph); n != INVALID; ++n)
ladanyi@1442:   {
ladanyi@1606:     delete nodesmap[n];
ladanyi@1606:     delete nodetextmap[n];
ladanyi@1442:   }
ladanyi@1442: 
ladanyi@1606:   for (EdgeIt e(mapstorage.graph); e != INVALID; ++e)
ladanyi@1606:   {
ladanyi@1606:     delete edgesmap[e];
ladanyi@1606:     delete edgetextmap[e];
ladanyi@1606:   }
ladanyi@1442: }