[53] | 1 | #include "graph_displayer_canvas.h" |
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[59] | 2 | #include <cmath> |
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[6] | 3 | |
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[55] | 4 | GraphDisplayerCanvas::GraphDisplayerCanvas(MapStorage & ms, MapWin & mw, Gtk::Window * mainwin) : |
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[53] | 5 | nodesmap(ms.graph), edgesmap(ms.graph), edgetextmap(ms.graph), |
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[66] | 6 | nodetextmap(ms.graph), displayed_graph(*(root()), 0, 0), mapstorage(ms), |
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| 7 | isbutton(0), active_item(NULL), target_item(NULL), nodemap_to_edit(""), |
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| 8 | edgemap_to_edit(""), mapwin(mw) |
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[6] | 9 | { |
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[55] | 10 | parentwin=mainwin; |
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| 11 | |
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[53] | 12 | //base event handler is move tool |
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| 13 | actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::moveEventHandler), false); |
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| 14 | actual_tool=MOVE; |
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[34] | 15 | |
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[53] | 16 | active_node=INVALID; |
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| 17 | active_edge=INVALID; |
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| 18 | forming_edge=INVALID; |
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| 19 | } |
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[9] | 20 | |
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[53] | 21 | GraphDisplayerCanvas::~GraphDisplayerCanvas() |
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| 22 | { |
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| 23 | for (NodeIt n(mapstorage.graph); n != INVALID; ++n) |
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| 24 | { |
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| 25 | delete nodesmap[n]; |
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| 26 | delete nodetextmap[n]; |
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| 27 | } |
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[6] | 28 | |
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[53] | 29 | for (EdgeIt e(mapstorage.graph); e != INVALID; ++e) |
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| 30 | { |
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| 31 | delete edgesmap[e]; |
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| 32 | delete edgetextmap[e]; |
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| 33 | } |
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| 34 | } |
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| 35 | |
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| 36 | void GraphDisplayerCanvas::drawGraph() |
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| 37 | { |
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[6] | 38 | //first edges are drawn, to hide joining with nodes later |
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| 39 | |
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[53] | 40 | for (EdgeIt i(mapstorage.graph); i!=INVALID; ++i) |
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[6] | 41 | { |
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| 42 | |
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[53] | 43 | //drawing green lines, coordinates are from mapstorage.coords |
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[6] | 44 | |
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| 45 | Gnome::Canvas::Points coos; |
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[53] | 46 | coos.push_back(Gnome::Art::Point( |
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| 47 | mapstorage.coords[mapstorage.graph.source(i)].x, |
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| 48 | mapstorage.coords[mapstorage.graph.source(i)].y)); |
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| 49 | coos.push_back(Gnome::Art::Point( |
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| 50 | mapstorage.coords[mapstorage.graph.target(i)].x, |
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| 51 | mapstorage.coords[mapstorage.graph.target(i)].y)); |
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[6] | 52 | |
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[21] | 53 | edgesmap[i]=new BrokenEdge(displayed_graph, coos, *this); |
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[6] | 54 | *(edgesmap[i]) << Gnome::Canvas::Properties::fill_color("green"); |
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[47] | 55 | edgesmap[i]->property_width_units().set_value(10); |
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[63] | 56 | edgesmap[i]->lower_to_bottom(); |
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[6] | 57 | |
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| 58 | //initializing edge-text as well, to empty string |
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| 59 | |
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[30] | 60 | xy<double> text_pos=edgesmap[i]->getArrowPos(); |
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[25] | 61 | text_pos+=(xy<double>(10,10)); |
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| 62 | |
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| 63 | edgetextmap[i]=new Gnome::Canvas::Text(displayed_graph, text_pos.x, text_pos.y, ""); |
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[28] | 64 | edgetextmap[i]->property_fill_color().set_value("darkgreen"); |
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[48] | 65 | edgetextmap[i]->signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::edgeMapEditEventHandler), false); |
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[63] | 66 | edgetextmap[i]->raise_to_top(); |
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[6] | 67 | } |
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| 68 | |
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| 69 | //afterwards nodes come to be drawn |
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| 70 | |
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[53] | 71 | for (NodeIt i(mapstorage.graph); i!=INVALID; ++i) |
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[6] | 72 | { |
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| 73 | //drawing bule nodes, with black line around them |
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| 74 | |
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[53] | 75 | nodesmap[i]=new Gnome::Canvas::Ellipse( |
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| 76 | displayed_graph, |
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| 77 | mapstorage.coords[i].x-20, |
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| 78 | mapstorage.coords[i].y-20, |
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| 79 | mapstorage.coords[i].x+20, |
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| 80 | mapstorage.coords[i].y+20); |
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[6] | 81 | *(nodesmap[i]) << Gnome::Canvas::Properties::fill_color("blue"); |
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| 82 | *(nodesmap[i]) << Gnome::Canvas::Properties::outline_color("black"); |
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[63] | 83 | nodesmap[i]->raise_to_top(); |
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[28] | 84 | |
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| 85 | //initializing edge-text as well, to empty string |
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| 86 | |
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[53] | 87 | xy<double> text_pos( |
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| 88 | (mapstorage.coords[i].x+node_property_defaults[N_RADIUS]+5), |
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| 89 | (mapstorage.coords[i].y+node_property_defaults[N_RADIUS]+5)); |
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[28] | 90 | |
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[53] | 91 | nodetextmap[i]=new Gnome::Canvas::Text(displayed_graph, |
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| 92 | text_pos.x, text_pos.y, ""); |
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[28] | 93 | nodetextmap[i]->property_fill_color().set_value("darkblue"); |
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[48] | 94 | nodetextmap[i]->signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::nodeMapEditEventHandler), false); |
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[63] | 95 | nodetextmap[i]->raise_to_top(); |
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[6] | 96 | } |
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| 97 | |
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| 98 | updateScrollRegion(); |
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| 99 | } |
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| 100 | |
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[53] | 101 | void GraphDisplayerCanvas::clear() |
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[6] | 102 | { |
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[53] | 103 | active_node=INVALID; |
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| 104 | active_edge=INVALID; |
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| 105 | forming_edge=INVALID; |
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[6] | 106 | |
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[53] | 107 | for (NodeIt n(mapstorage.graph); n != INVALID; ++n) |
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[6] | 108 | { |
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[53] | 109 | delete nodesmap[n]; |
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| 110 | delete nodetextmap[n]; |
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[6] | 111 | } |
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| 112 | |
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[53] | 113 | for (EdgeIt e(mapstorage.graph); e != INVALID; ++e) |
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| 114 | { |
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| 115 | delete edgesmap[e]; |
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| 116 | delete edgetextmap[e]; |
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| 117 | } |
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[6] | 118 | } |
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