[53] | 1 | #include "graph_displayer_canvas.h" |
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[59] | 2 | #include <cmath> |
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[27] | 3 | |
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| 4 | |
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| 5 | bool GraphDisplayerCanvas::on_expose_event(GdkEventExpose *event) |
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| 6 | { |
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| 7 | Gnome::Canvas::CanvasAA::on_expose_event(event); |
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| 8 | //usleep(10000); |
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| 9 | //rezoom(); |
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| 10 | return true; |
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| 11 | } |
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| 12 | |
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| 13 | void GraphDisplayerCanvas::changeEditorialTool(int newtool) |
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| 14 | { |
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[34] | 15 | if(actual_tool!=newtool) |
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| 16 | { |
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[27] | 17 | |
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[34] | 18 | actual_handler.disconnect(); |
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[27] | 19 | |
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[34] | 20 | switch(actual_tool) |
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| 21 | { |
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| 22 | case CREATE_EDGE: |
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| 23 | { |
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| 24 | GdkEvent * generated=new GdkEvent(); |
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| 25 | generated->type=GDK_BUTTON_RELEASE; |
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| 26 | generated->button.button=3; |
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| 27 | createEdgeEventHandler(generated); |
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| 28 | break; |
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| 29 | } |
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[149] | 30 | case MAP_EDIT: |
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[35] | 31 | { |
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| 32 | break; |
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| 33 | } |
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[34] | 34 | default: |
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| 35 | break; |
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| 36 | } |
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[27] | 37 | |
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[34] | 38 | active_item=NULL; |
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| 39 | target_item=NULL; |
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| 40 | active_edge=INVALID; |
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| 41 | active_node=INVALID; |
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[33] | 42 | |
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[27] | 43 | |
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[34] | 44 | actual_tool=newtool; |
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| 45 | |
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| 46 | switch(newtool) |
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| 47 | { |
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| 48 | case MOVE: |
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| 49 | actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::moveEventHandler), false); |
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| 50 | break; |
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[27] | 51 | |
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[34] | 52 | case CREATE_NODE: |
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| 53 | actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::createNodeEventHandler), false); |
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| 54 | break; |
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[27] | 55 | |
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[34] | 56 | case CREATE_EDGE: |
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| 57 | actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::createEdgeEventHandler), false); |
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| 58 | break; |
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[27] | 59 | |
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[34] | 60 | case ERASER: |
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| 61 | actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::eraserEventHandler), false); |
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| 62 | break; |
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[32] | 63 | |
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[149] | 64 | case MAP_EDIT: |
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[34] | 65 | grab_focus(); |
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[149] | 66 | actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::mapEditEventHandler), false); |
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[34] | 67 | break; |
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| 68 | |
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| 69 | default: |
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| 70 | break; |
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| 71 | } |
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[27] | 72 | } |
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| 73 | } |
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| 74 | |
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[30] | 75 | int GraphDisplayerCanvas::getActualTool() |
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[27] | 76 | { |
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| 77 | return actual_tool; |
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| 78 | } |
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| 79 | |
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[30] | 80 | bool GraphDisplayerCanvas::moveEventHandler(GdkEvent* e) |
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[27] | 81 | { |
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[70] | 82 | static Gnome::Canvas::Text *coord_text = 0; |
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[27] | 83 | switch(e->type) |
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| 84 | { |
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| 85 | case GDK_BUTTON_PRESS: |
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| 86 | //we mark the location of the event to be able to calculate parameters of dragging |
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[31] | 87 | window_to_world (e->button.x, e->button.y, clicked_x, clicked_y); |
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| 88 | |
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| 89 | active_item=(get_item_at(clicked_x, clicked_y)); |
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[27] | 90 | active_node=INVALID; |
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[96] | 91 | for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
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[27] | 92 | { |
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| 93 | if(nodesmap[i]==active_item) |
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| 94 | { |
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| 95 | active_node=i; |
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| 96 | } |
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| 97 | } |
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[148] | 98 | isbutton=e->button.button; |
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[27] | 99 | break; |
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| 100 | case GDK_BUTTON_RELEASE: |
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[70] | 101 | if (coord_text) |
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| 102 | { |
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| 103 | delete coord_text; |
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| 104 | coord_text = 0; |
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| 105 | } |
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[27] | 106 | isbutton=0; |
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| 107 | active_item=NULL; |
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| 108 | active_node=INVALID; |
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| 109 | break; |
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| 110 | case GDK_MOTION_NOTIFY: |
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| 111 | //we only have to do sg. if the mouse button is pressed AND the click was on a node that was found in the set of nodes |
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| 112 | if(active_node!=INVALID) |
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| 113 | { |
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[96] | 114 | (mytab.mapstorage).modified = true; |
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[70] | 115 | |
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[27] | 116 | //new coordinates will be the old values, |
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| 117 | //because the item will be moved to the |
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| 118 | //new coordinate therefore the new movement |
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| 119 | //has to be calculated from here |
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| 120 | |
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[31] | 121 | double new_x, new_y; |
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| 122 | |
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| 123 | window_to_world (e->motion.x, e->motion.y, new_x, new_y); |
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| 124 | |
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| 125 | double dx=new_x-clicked_x; |
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| 126 | double dy=new_y-clicked_y; |
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[27] | 127 | |
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[28] | 128 | //repositioning node and its text |
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[27] | 129 | active_item->move(dx, dy); |
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[28] | 130 | nodetextmap[active_node]->move(dx, dy); |
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[27] | 131 | |
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[70] | 132 | // the new coordinates of the centre of the node |
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[96] | 133 | double coord_x = new_x - (clicked_x - (mytab.mapstorage).coords[active_node].x); |
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| 134 | double coord_y = new_y - (clicked_y - (mytab.mapstorage).coords[active_node].y); |
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[70] | 135 | |
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[98] | 136 | // write back the new coordinates to the coords map |
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[150] | 137 | (mytab.mapstorage).coords.set(active_node, XY(coord_x, coord_y)); |
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[98] | 138 | |
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[31] | 139 | clicked_x=new_x; |
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| 140 | clicked_y=new_y; |
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[27] | 141 | |
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[70] | 142 | // reposition the coordinates text |
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| 143 | std::ostringstream ostr; |
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| 144 | ostr << "(" << |
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[96] | 145 | (mytab.mapstorage).coords[active_node].x << ", " << |
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| 146 | (mytab.mapstorage).coords[active_node].y << ")"; |
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[72] | 147 | double radius = |
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| 148 | (nodesmap[active_node]->property_x2().get_value() - |
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| 149 | nodesmap[active_node]->property_x1().get_value()) / 2.0; |
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[70] | 150 | if (coord_text) |
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| 151 | { |
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| 152 | coord_text->property_text().set_value(ostr.str()); |
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[96] | 153 | coord_text->property_x().set_value((mytab.mapstorage).coords[active_node].x + |
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[72] | 154 | radius); |
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[96] | 155 | coord_text->property_y().set_value((mytab.mapstorage).coords[active_node].y - |
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[72] | 156 | radius); |
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[70] | 157 | } |
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| 158 | else |
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| 159 | { |
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| 160 | coord_text = new Gnome::Canvas::Text( |
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| 161 | displayed_graph, |
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[96] | 162 | (mytab.mapstorage).coords[active_node].x + radius, |
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| 163 | (mytab.mapstorage).coords[active_node].y - radius, |
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[70] | 164 | ostr.str()); |
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| 165 | coord_text->property_fill_color().set_value("black"); |
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[72] | 166 | coord_text->property_anchor().set_value(Gtk::ANCHOR_SOUTH_WEST); |
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[70] | 167 | } |
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| 168 | |
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| 169 | //all the edges connected to the moved point has to be redrawn |
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[96] | 170 | for(OutEdgeIt ei((mytab.mapstorage).graph,active_node);ei!=INVALID;++ei) |
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[27] | 171 | { |
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[98] | 172 | XY moved_node_1(coord_x - dx, coord_y - dy); |
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| 173 | XY moved_node_2(coord_x, coord_y); |
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| 174 | Node target = mytab.mapstorage.graph.target(ei); |
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| 175 | XY fix_node(mytab.mapstorage.coords[target].x, |
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| 176 | mytab.mapstorage.coords[target].y); |
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| 177 | XY old_arrow_pos(mytab.mapstorage.arrow_pos[ei]); |
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[27] | 178 | |
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[98] | 179 | XY arrow_pos; |
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[148] | 180 | arrow_pos = calcArrowPos(moved_node_1, moved_node_2, fix_node, old_arrow_pos, isbutton); |
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[27] | 181 | |
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[98] | 182 | mytab.mapstorage.arrow_pos.set(ei, arrow_pos); |
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| 183 | edgesmap[ei]->draw(); |
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[27] | 184 | |
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[28] | 185 | //reposition of edgetext |
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[98] | 186 | XY text_pos=mytab.mapstorage.arrow_pos[ei]; |
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| 187 | text_pos+=(XY(10,10)); |
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[27] | 188 | edgetextmap[ei]->property_x().set_value(text_pos.x); |
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| 189 | edgetextmap[ei]->property_y().set_value(text_pos.y); |
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| 190 | } |
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| 191 | |
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[96] | 192 | for(InEdgeIt ei((mytab.mapstorage).graph,active_node);ei!=INVALID;++ei) |
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[27] | 193 | { |
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[98] | 194 | XY moved_node_1(coord_x - dx, coord_y - dy); |
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| 195 | XY moved_node_2(coord_x, coord_y); |
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| 196 | Node source = mytab.mapstorage.graph.source(ei); |
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| 197 | XY fix_node(mytab.mapstorage.coords[source].x, |
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| 198 | mytab.mapstorage.coords[source].y); |
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| 199 | XY old_arrow_pos(mytab.mapstorage.arrow_pos[ei]); |
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[27] | 200 | |
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[98] | 201 | XY arrow_pos; |
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[148] | 202 | arrow_pos = calcArrowPos(moved_node_1, moved_node_2, fix_node, old_arrow_pos, isbutton); |
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[27] | 203 | |
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[98] | 204 | mytab.mapstorage.arrow_pos.set(ei, arrow_pos); |
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| 205 | edgesmap[ei]->draw(); |
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[27] | 206 | |
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[98] | 207 | //reposition of edgetext |
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| 208 | XY text_pos=mytab.mapstorage.arrow_pos[ei]; |
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| 209 | text_pos+=(XY(10,10)); |
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[27] | 210 | edgetextmap[ei]->property_x().set_value(text_pos.x); |
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| 211 | edgetextmap[ei]->property_y().set_value(text_pos.y); |
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| 212 | } |
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| 213 | } |
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| 214 | default: break; |
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| 215 | } |
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| 216 | |
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[31] | 217 | return false; |
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[27] | 218 | } |
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| 219 | |
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[148] | 220 | XY GraphDisplayerCanvas::calcArrowPos(XY moved_node_1, XY moved_node_2, XY fix_node, XY old_arrow_pos, int move_code) |
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[98] | 221 | { |
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[148] | 222 | switch(move_code) |
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| 223 | { |
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| 224 | case 1: |
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| 225 | return XY((moved_node_2.x + fix_node.x) / 2.0, (moved_node_2.y + fix_node.y) / 2.0); |
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| 226 | break; |
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| 227 | case 2: |
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| 228 | return old_arrow_pos; |
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| 229 | break; |
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| 230 | case 3: |
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| 231 | { |
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| 232 | ////////////////////////////////////////////////////////////////////////////////////////////////////// |
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| 233 | /////////// keeps shape-with scalar multiplication - version 2. |
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| 234 | ////////////////////////////////////////////////////////////////////////////////////////////////////// |
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[98] | 235 | |
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[148] | 236 | //old vector from one to the other node - a |
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[150] | 237 | XY a_v(moved_node_1.x-fix_node.x,moved_node_1.y-fix_node.y); |
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[148] | 238 | //new vector from one to the other node - b |
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[150] | 239 | XY b_v(moved_node_2.x-fix_node.x,moved_node_2.y-fix_node.y); |
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[98] | 240 | |
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[148] | 241 | double absa=sqrt(a_v.normSquare()); |
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| 242 | double absb=sqrt(b_v.normSquare()); |
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[98] | 243 | |
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[148] | 244 | if ((absa == 0.0) || (absb == 0.0)) |
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| 245 | { |
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| 246 | return old_arrow_pos; |
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| 247 | } |
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| 248 | else |
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| 249 | { |
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| 250 | //old vector from one node to the breakpoint - c |
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[150] | 251 | XY c_v(old_arrow_pos.x-fix_node.x,old_arrow_pos.y-fix_node.y); |
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[148] | 252 | |
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| 253 | //unit vector with the same direction to a_v |
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[150] | 254 | XY a_v_u(a_v.x/absa,a_v.y/absa); |
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[148] | 255 | |
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| 256 | //normal vector of unit vector with the same direction to a_v |
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[150] | 257 | XY a_v_u_n(((-1)*a_v_u.y),a_v_u.x); |
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[148] | 258 | |
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| 259 | //unit vector with the same direction to b_v |
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[150] | 260 | XY b_v_u(b_v.x/absb,b_v.y/absb); |
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[148] | 261 | |
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| 262 | //normal vector of unit vector with the same direction to b_v |
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[150] | 263 | XY b_v_u_n(((-1)*b_v_u.y),b_v_u.x); |
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[148] | 264 | |
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| 265 | //vector c in a_v_u and a_v_u_n co-ordinate system |
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[150] | 266 | XY c_a(c_v*a_v_u,c_v*a_v_u_n); |
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[148] | 267 | |
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| 268 | //new vector from one node to the breakpoint - d - we have to calculate this one |
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[150] | 269 | XY d_v=absb/absa*(c_a.x*b_v_u+c_a.y*b_v_u_n); |
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[148] | 270 | |
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| 271 | return XY(d_v.x+fix_node.x,d_v.y+fix_node.y); |
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| 272 | } |
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| 273 | break; |
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| 274 | } |
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| 275 | default: |
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| 276 | break; |
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[98] | 277 | } |
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[148] | 278 | } |
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[98] | 279 | |
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| 280 | |
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[30] | 281 | bool GraphDisplayerCanvas::createNodeEventHandler(GdkEvent* e) |
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[27] | 282 | { |
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| 283 | switch(e->type) |
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[63] | 284 | { |
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| 285 | //move the new node |
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| 286 | case GDK_MOTION_NOTIFY: |
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| 287 | { |
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| 288 | GdkEvent * generated=new GdkEvent(); |
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| 289 | generated->motion.x=e->motion.x; |
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| 290 | generated->motion.y=e->motion.y; |
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| 291 | generated->type=GDK_MOTION_NOTIFY; |
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| 292 | moveEventHandler(generated); |
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| 293 | break; |
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| 294 | } |
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[27] | 295 | |
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[63] | 296 | case GDK_BUTTON_RELEASE: |
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[96] | 297 | (mytab.mapstorage).modified = true; |
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[53] | 298 | |
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[27] | 299 | isbutton=1; |
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| 300 | |
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[96] | 301 | active_node=(mytab.mapstorage).graph.addNode(); |
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[27] | 302 | |
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| 303 | //initiating values corresponding to new node in maps |
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| 304 | |
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| 305 | window_to_world (e->button.x, e->button.y, clicked_x, clicked_y); |
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| 306 | |
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[63] | 307 | // update coordinates |
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[150] | 308 | (mytab.mapstorage).coords.set(active_node, XY(clicked_x, clicked_y)); |
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[63] | 309 | |
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| 310 | // update all other maps |
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| 311 | for (std::map<std::string, Graph::NodeMap<double>*>::const_iterator it = |
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[96] | 312 | (mytab.mapstorage).nodemap_storage.begin(); it != |
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| 313 | (mytab.mapstorage).nodemap_storage.end(); ++it) |
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[63] | 314 | { |
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[64] | 315 | if ((it->first != "coordinates_x") && |
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| 316 | (it->first != "coordinates_y")) |
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[63] | 317 | { |
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| 318 | (*(it->second))[active_node] = |
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[96] | 319 | (mytab.mapstorage).nodemap_default[it->first]; |
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[63] | 320 | } |
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| 321 | } |
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[64] | 322 | // increment the id map's default value |
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[134] | 323 | (mytab.mapstorage).nodemap_default["label"] += 1.0; |
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[63] | 324 | |
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[53] | 325 | nodesmap[active_node]=new Gnome::Canvas::Ellipse(displayed_graph, |
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[63] | 326 | clicked_x-20, clicked_y-20, clicked_x+20, clicked_y+20); |
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[27] | 327 | active_item=(Gnome::Canvas::Item *)(nodesmap[active_node]); |
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[63] | 328 | *(nodesmap[active_node]) << |
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| 329 | Gnome::Canvas::Properties::fill_color("blue"); |
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| 330 | *(nodesmap[active_node]) << |
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| 331 | Gnome::Canvas::Properties::outline_color("black"); |
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| 332 | active_item->raise_to_top(); |
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| 333 | |
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[27] | 334 | (nodesmap[active_node])->show(); |
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[28] | 335 | |
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[53] | 336 | nodetextmap[active_node]=new Gnome::Canvas::Text(displayed_graph, |
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[63] | 337 | clicked_x+node_property_defaults[N_RADIUS]+5, |
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| 338 | clicked_y+node_property_defaults[N_RADIUS]+5, ""); |
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[28] | 339 | nodetextmap[active_node]->property_fill_color().set_value("darkblue"); |
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[63] | 340 | nodetextmap[active_node]->raise_to_top(); |
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[28] | 341 | |
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[94] | 342 | // mapwin.updateNode(active_node); |
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| 343 | propertyUpdate(active_node); |
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[28] | 344 | |
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[27] | 345 | isbutton=0; |
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[31] | 346 | target_item=NULL; |
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[27] | 347 | active_item=NULL; |
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| 348 | active_node=INVALID; |
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| 349 | break; |
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| 350 | default: |
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| 351 | break; |
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[63] | 352 | } |
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[27] | 353 | return false; |
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| 354 | } |
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| 355 | |
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[30] | 356 | bool GraphDisplayerCanvas::createEdgeEventHandler(GdkEvent* e) |
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[27] | 357 | { |
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| 358 | switch(e->type) |
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[63] | 359 | { |
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[27] | 360 | case GDK_BUTTON_PRESS: |
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| 361 | //in edge creation right button has special meaning |
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| 362 | if(e->button.button!=3) |
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[63] | 363 | { |
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| 364 | //there is not yet selected node |
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| 365 | if(active_node==INVALID) |
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| 366 | { |
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| 367 | //we mark the location of the event to be able to calculate parameters of dragging |
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[31] | 368 | |
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[63] | 369 | window_to_world (e->button.x, e->button.y, clicked_x, clicked_y); |
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[31] | 370 | |
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[63] | 371 | active_item=(get_item_at(clicked_x, clicked_y)); |
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| 372 | active_node=INVALID; |
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[96] | 373 | for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
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[63] | 374 | { |
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| 375 | if(nodesmap[i]==active_item) |
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| 376 | { |
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| 377 | active_node=i; |
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| 378 | } |
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| 379 | } |
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| 380 | //the clicked item is really a node |
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| 381 | if(active_node!=INVALID) |
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| 382 | { |
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| 383 | *(nodesmap[active_node]) << Gnome::Canvas::Properties::fill_color("red"); |
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| 384 | isbutton=1; |
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| 385 | } |
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| 386 | //clicked item was not a node. It could be e.g. edge. |
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| 387 | else |
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| 388 | { |
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| 389 | active_item=NULL; |
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| 390 | } |
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| 391 | } |
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| 392 | //we only have to do sg. if the mouse button |
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| 393 | // is pressed already once AND the click was |
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| 394 | // on a node that was found in the set of |
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| 395 | //nodes, and now we only search for the second |
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| 396 | //node |
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| 397 | else |
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| 398 | { |
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| 399 | window_to_world (e->button.x, e->button.y, clicked_x, clicked_y); |
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| 400 | target_item=(get_item_at(clicked_x, clicked_y)); |
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| 401 | Node target_node=INVALID; |
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[96] | 402 | for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
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[63] | 403 | { |
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| 404 | if(nodesmap[i]==target_item) |
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| 405 | { |
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| 406 | target_node=i; |
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| 407 | } |
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| 408 | } |
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| 409 | //the clicked item is a node, the edge can be drawn |
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| 410 | if(target_node!=INVALID) |
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| 411 | { |
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[151] | 412 | (mytab.mapstorage).modified = true; |
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| 413 | |
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| 414 | *(nodesmap[target_node]) << |
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| 415 | Gnome::Canvas::Properties::fill_color("red"); |
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| 416 | |
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| 417 | //creating new edge |
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| 418 | active_edge=(mytab.mapstorage).graph.addEdge(active_node, |
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| 419 | target_node); |
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| 420 | |
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| 421 | // update maps |
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| 422 | for (std::map<std::string, |
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| 423 | Graph::EdgeMap<double>*>::const_iterator it = |
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| 424 | (mytab.mapstorage).edgemap_storage.begin(); it != |
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| 425 | (mytab.mapstorage).edgemap_storage.end(); ++it) |
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| 426 | { |
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| 427 | (*(it->second))[active_edge] = |
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| 428 | (mytab.mapstorage).edgemap_default[it->first]; |
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| 429 | } |
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| 430 | // increment the id map's default value |
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| 431 | (mytab.mapstorage).edgemap_default["label"] += 1.0; |
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| 432 | |
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[63] | 433 | if(target_node!=active_node) |
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| 434 | { |
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[113] | 435 | // set the coordinates of the arrow on the new edge |
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| 436 | MapStorage& ms = mytab.mapstorage; |
---|
| 437 | ms.arrow_pos.set(active_edge, |
---|
| 438 | (ms.coords[ms.graph.source(active_edge)] + |
---|
| 439 | ms.coords[ms.graph.target(active_edge)])/ 2.0); |
---|
| 440 | |
---|
[63] | 441 | //drawing new edge |
---|
[98] | 442 | edgesmap[active_edge]=new BrokenEdge(displayed_graph, active_edge, |
---|
[63] | 443 | *this); |
---|
| 444 | } |
---|
| 445 | else |
---|
| 446 | { |
---|
[151] | 447 | // set the coordinates of the arrow on the new edge |
---|
| 448 | MapStorage& ms = mytab.mapstorage; |
---|
| 449 | ms.arrow_pos.set(active_edge, |
---|
| 450 | (ms.coords[ms.graph.source(active_edge)] + |
---|
| 451 | XY(0.0, 80.0))); |
---|
| 452 | |
---|
| 453 | //drawing new edge |
---|
| 454 | edgesmap[active_edge]=new LoopEdge(displayed_graph, active_edge, |
---|
| 455 | *this); |
---|
[63] | 456 | } |
---|
[151] | 457 | |
---|
| 458 | //initializing edge-text as well, to empty string |
---|
| 459 | XY text_pos=mytab.mapstorage.arrow_pos[active_edge]; |
---|
| 460 | text_pos+=(XY(10,10)); |
---|
| 461 | |
---|
| 462 | edgetextmap[active_edge]=new Gnome::Canvas::Text(displayed_graph, |
---|
| 463 | text_pos.x, text_pos.y, ""); |
---|
| 464 | edgetextmap[active_edge]->property_fill_color().set_value( |
---|
| 465 | "darkgreen"); |
---|
| 466 | edgetextmap[active_edge]->raise_to_top(); |
---|
| 467 | |
---|
| 468 | propertyUpdate(active_edge); |
---|
[63] | 469 | } |
---|
| 470 | //clicked item was not a node. it could be an e.g. edge. we do not |
---|
| 471 | //deal with it furthermore. |
---|
| 472 | else |
---|
| 473 | { |
---|
| 474 | target_item=NULL; |
---|
| 475 | } |
---|
| 476 | } |
---|
| 477 | } |
---|
[27] | 478 | break; |
---|
| 479 | case GDK_BUTTON_RELEASE: |
---|
| 480 | isbutton=0; |
---|
| 481 | //we clear settings in two cases |
---|
| 482 | //1: the edge is ready (target_item has valid value) |
---|
| 483 | //2: the edge creation is cancelled with right button |
---|
| 484 | if((target_item)||(e->button.button==3)) |
---|
[63] | 485 | { |
---|
| 486 | if(active_item) |
---|
| 487 | { |
---|
| 488 | *active_item << Gnome::Canvas::Properties::fill_color("blue"); |
---|
| 489 | active_item=NULL; |
---|
| 490 | } |
---|
| 491 | if(target_item) |
---|
| 492 | { |
---|
| 493 | *target_item << Gnome::Canvas::Properties::fill_color("blue"); |
---|
| 494 | target_item=NULL; |
---|
| 495 | } |
---|
| 496 | active_node=INVALID; |
---|
| 497 | active_edge=INVALID; |
---|
| 498 | } |
---|
[27] | 499 | break; |
---|
| 500 | default: |
---|
| 501 | break; |
---|
[63] | 502 | } |
---|
[27] | 503 | return false; |
---|
| 504 | } |
---|
| 505 | |
---|
[30] | 506 | bool GraphDisplayerCanvas::eraserEventHandler(GdkEvent* e) |
---|
[27] | 507 | { |
---|
| 508 | switch(e->type) |
---|
| 509 | { |
---|
| 510 | case GDK_BUTTON_PRESS: |
---|
[43] | 511 | //finding the clicked items |
---|
[31] | 512 | window_to_world (e->button.x, e->button.y, clicked_x, clicked_y); |
---|
| 513 | active_item=(get_item_at(clicked_x, clicked_y)); |
---|
[27] | 514 | active_node=INVALID; |
---|
| 515 | active_edge=INVALID; |
---|
[43] | 516 | //was it a node? |
---|
[96] | 517 | for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
---|
[27] | 518 | { |
---|
| 519 | if(nodesmap[i]==active_item) |
---|
| 520 | { |
---|
| 521 | active_node=i; |
---|
| 522 | } |
---|
| 523 | } |
---|
[43] | 524 | //or was it an edge? |
---|
[27] | 525 | if(active_node==INVALID) |
---|
| 526 | { |
---|
[96] | 527 | for (EdgeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
---|
[27] | 528 | { |
---|
| 529 | if(edgesmap[i]==active_item) |
---|
| 530 | { |
---|
| 531 | active_edge=i; |
---|
| 532 | } |
---|
| 533 | } |
---|
| 534 | } |
---|
[43] | 535 | |
---|
[129] | 536 | // return if the clicked object is neither an edge nor a node |
---|
| 537 | if (active_edge == INVALID) return false; |
---|
| 538 | |
---|
[43] | 539 | //recolor activated item |
---|
[31] | 540 | if(active_item) |
---|
| 541 | { |
---|
| 542 | *active_item << Gnome::Canvas::Properties::fill_color("red"); |
---|
| 543 | } |
---|
[27] | 544 | break; |
---|
| 545 | |
---|
| 546 | case GDK_BUTTON_RELEASE: |
---|
[31] | 547 | window_to_world (e->button.x, e->button.y, clicked_x, clicked_y); |
---|
| 548 | if(active_item) |
---|
[27] | 549 | { |
---|
[43] | 550 | //the cursor was not moved since pressing it |
---|
[31] | 551 | if( active_item == ( get_item_at (clicked_x, clicked_y) ) ) |
---|
[27] | 552 | { |
---|
[43] | 553 | //a node was found |
---|
[31] | 554 | if(active_node!=INVALID) |
---|
| 555 | { |
---|
[96] | 556 | (mytab.mapstorage).modified = true; |
---|
[27] | 557 | |
---|
[31] | 558 | std::set<Graph::Edge> edges_to_delete; |
---|
[27] | 559 | |
---|
[96] | 560 | for(OutEdgeIt e((mytab.mapstorage).graph,active_node);e!=INVALID;++e) |
---|
[31] | 561 | { |
---|
| 562 | edges_to_delete.insert(e); |
---|
| 563 | } |
---|
[69] | 564 | |
---|
[96] | 565 | for(InEdgeIt e((mytab.mapstorage).graph,active_node);e!=INVALID;++e) |
---|
[31] | 566 | { |
---|
| 567 | edges_to_delete.insert(e); |
---|
| 568 | } |
---|
[69] | 569 | |
---|
[31] | 570 | //deleting collected edges |
---|
[69] | 571 | for(std::set<Graph::Edge>::iterator |
---|
| 572 | edge_set_it=edges_to_delete.begin(); |
---|
| 573 | edge_set_it!=edges_to_delete.end(); |
---|
| 574 | ++edge_set_it) |
---|
[31] | 575 | { |
---|
| 576 | deleteItem(*edge_set_it); |
---|
| 577 | } |
---|
| 578 | deleteItem(active_node); |
---|
| 579 | } |
---|
| 580 | //a simple edge was chosen |
---|
[129] | 581 | else if (active_edge != INVALID) |
---|
[27] | 582 | { |
---|
[31] | 583 | deleteItem(active_edge); |
---|
[27] | 584 | } |
---|
| 585 | } |
---|
[31] | 586 | //pointer was moved, deletion is cancelled |
---|
[27] | 587 | else |
---|
| 588 | { |
---|
[31] | 589 | if(active_node!=INVALID) |
---|
| 590 | { |
---|
| 591 | *active_item << Gnome::Canvas::Properties::fill_color("blue"); |
---|
| 592 | } |
---|
[129] | 593 | else if (active_edge != INVALID) |
---|
[31] | 594 | { |
---|
| 595 | *active_item << Gnome::Canvas::Properties::fill_color("green"); |
---|
| 596 | } |
---|
[27] | 597 | } |
---|
| 598 | } |
---|
| 599 | //reseting datas |
---|
| 600 | active_item=NULL; |
---|
| 601 | active_edge=INVALID; |
---|
| 602 | active_node=INVALID; |
---|
| 603 | break; |
---|
| 604 | |
---|
| 605 | case GDK_MOTION_NOTIFY: |
---|
| 606 | break; |
---|
| 607 | |
---|
| 608 | default: |
---|
| 609 | break; |
---|
| 610 | } |
---|
[31] | 611 | return false; |
---|
[27] | 612 | } |
---|
| 613 | |
---|
[149] | 614 | bool GraphDisplayerCanvas::mapEditEventHandler(GdkEvent* e) |
---|
[32] | 615 | { |
---|
[149] | 616 | if(actual_tool==MAP_EDIT) |
---|
[32] | 617 | { |
---|
[149] | 618 | switch(e->type) |
---|
| 619 | { |
---|
| 620 | case GDK_BUTTON_PRESS: |
---|
| 621 | { |
---|
| 622 | //for determine, whether it was an edge |
---|
| 623 | Edge clicked_edge=INVALID; |
---|
| 624 | //for determine, whether it was a node |
---|
| 625 | Node clicked_node=INVALID; |
---|
[43] | 626 | |
---|
[149] | 627 | window_to_world (e->button.x, e->button.y, clicked_x, clicked_y); |
---|
| 628 | active_item=(get_item_at(clicked_x, clicked_y)); |
---|
[48] | 629 | |
---|
[149] | 630 | //find the activated item between text of nodes |
---|
| 631 | for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
---|
| 632 | { |
---|
| 633 | //at the same time only one can be active |
---|
| 634 | if(nodetextmap[i]==active_item) |
---|
| 635 | { |
---|
| 636 | clicked_node=i; |
---|
| 637 | } |
---|
| 638 | } |
---|
[65] | 639 | |
---|
[149] | 640 | //if there was not, search for it between nodes |
---|
| 641 | if(clicked_node==INVALID) |
---|
| 642 | { |
---|
| 643 | for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
---|
| 644 | { |
---|
| 645 | //at the same time only one can be active |
---|
| 646 | if(nodesmap[i]==active_item) |
---|
| 647 | { |
---|
| 648 | clicked_node=i; |
---|
| 649 | } |
---|
| 650 | } |
---|
| 651 | } |
---|
[48] | 652 | |
---|
[149] | 653 | if(clicked_node==INVALID) |
---|
| 654 | { |
---|
| 655 | //find the activated item between texts |
---|
| 656 | for (EdgeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
---|
| 657 | { |
---|
| 658 | //at the same time only one can be active |
---|
| 659 | if(edgetextmap[i]==active_item) |
---|
| 660 | { |
---|
| 661 | clicked_edge=i; |
---|
| 662 | } |
---|
| 663 | } |
---|
[48] | 664 | |
---|
[149] | 665 | //if it was not between texts, search for it between edges |
---|
| 666 | if(clicked_edge==INVALID) |
---|
| 667 | { |
---|
| 668 | for (EdgeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
---|
| 669 | { |
---|
| 670 | //at the same time only one can be active |
---|
| 671 | if((edgesmap[i]->getLine())==active_item) |
---|
| 672 | { |
---|
| 673 | clicked_edge=i; |
---|
| 674 | } |
---|
| 675 | } |
---|
| 676 | } |
---|
| 677 | } |
---|
| 678 | |
---|
| 679 | //if it was really a node... |
---|
| 680 | if(clicked_node!=INVALID) |
---|
| 681 | { |
---|
| 682 | // the id map is not editable |
---|
| 683 | if (nodemap_to_edit == "label") return 0; |
---|
| 684 | |
---|
| 685 | //and there is activated map |
---|
| 686 | if(nodetextmap[clicked_node]->property_text().get_value()!="") |
---|
| 687 | { |
---|
| 688 | //activate the general variable for it |
---|
| 689 | active_node=clicked_node; |
---|
| 690 | |
---|
| 691 | //create a dialog |
---|
| 692 | Gtk::Dialog dialog("Edit value", true); |
---|
| 693 | dialog.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL); |
---|
| 694 | dialog.add_button(Gtk::Stock::OK, Gtk::RESPONSE_ACCEPT); |
---|
| 695 | Gtk::VBox* vbox = dialog.get_vbox(); |
---|
| 696 | Gtk::SpinButton spin(0.0, 4); |
---|
| 697 | spin.set_increments(1.0, 10.0); |
---|
| 698 | spin.set_range(-1000000.0, 1000000.0); |
---|
| 699 | spin.set_numeric(true); |
---|
| 700 | spin.set_value(atof(nodetextmap[active_node]->property_text().get_value().c_str())); |
---|
| 701 | vbox->add(spin); |
---|
| 702 | spin.show(); |
---|
| 703 | switch (dialog.run()) |
---|
| 704 | { |
---|
| 705 | case Gtk::RESPONSE_NONE: |
---|
| 706 | case Gtk::RESPONSE_CANCEL: |
---|
| 707 | break; |
---|
| 708 | case Gtk::RESPONSE_ACCEPT: |
---|
| 709 | double new_value = spin.get_value(); |
---|
| 710 | (*(mytab.mapstorage).nodemap_storage[nodemap_to_edit])[active_node] = |
---|
| 711 | new_value; |
---|
| 712 | std::ostringstream ostr; |
---|
| 713 | ostr << new_value; |
---|
| 714 | nodetextmap[active_node]->property_text().set_value(ostr.str()); |
---|
| 715 | //mapwin.updateNode(active_node); |
---|
| 716 | //mapwin.updateNode(Node(INVALID)); |
---|
| 717 | propertyUpdate(Node(INVALID)); |
---|
| 718 | } |
---|
| 719 | } |
---|
| 720 | } |
---|
| 721 | else |
---|
| 722 | //if it was really an edge... |
---|
| 723 | if(clicked_edge!=INVALID) |
---|
| 724 | { |
---|
| 725 | // the id map is not editable |
---|
| 726 | if (edgemap_to_edit == "label") return 0; |
---|
| 727 | |
---|
| 728 | //and there is activated map |
---|
| 729 | if(edgetextmap[clicked_edge]->property_text().get_value()!="") |
---|
| 730 | { |
---|
| 731 | //activate the general variable for it |
---|
| 732 | active_edge=clicked_edge; |
---|
| 733 | |
---|
| 734 | //create a dialog |
---|
| 735 | Gtk::Dialog dialog("Edit value", true); |
---|
| 736 | dialog.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL); |
---|
| 737 | dialog.add_button(Gtk::Stock::OK, Gtk::RESPONSE_ACCEPT); |
---|
| 738 | Gtk::VBox* vbox = dialog.get_vbox(); |
---|
| 739 | Gtk::SpinButton spin(0.0, 4); |
---|
| 740 | spin.set_increments(1.0, 10.0); |
---|
| 741 | spin.set_range(-1000000.0, 1000000.0); |
---|
| 742 | spin.set_numeric(true); |
---|
| 743 | spin.set_value(atof(edgetextmap[active_edge]->property_text().get_value().c_str())); |
---|
| 744 | vbox->add(spin); |
---|
| 745 | spin.show(); |
---|
| 746 | switch (dialog.run()) |
---|
| 747 | { |
---|
| 748 | case Gtk::RESPONSE_NONE: |
---|
| 749 | case Gtk::RESPONSE_CANCEL: |
---|
| 750 | break; |
---|
| 751 | case Gtk::RESPONSE_ACCEPT: |
---|
| 752 | double new_value = spin.get_value(); |
---|
| 753 | (*(mytab.mapstorage).edgemap_storage[edgemap_to_edit])[active_edge] = |
---|
| 754 | new_value; |
---|
| 755 | std::ostringstream ostr; |
---|
| 756 | ostr << new_value; |
---|
| 757 | edgetextmap[active_edge]->property_text().set_value( |
---|
| 758 | ostr.str()); |
---|
| 759 | //mapwin.updateEdge(active_edge); |
---|
| 760 | // mapwin.updateEdge(Edge(INVALID)); |
---|
| 761 | propertyUpdate(Edge(INVALID)); |
---|
| 762 | } |
---|
| 763 | } |
---|
| 764 | } |
---|
| 765 | break; |
---|
| 766 | } |
---|
| 767 | default: |
---|
| 768 | break; |
---|
| 769 | } |
---|
[32] | 770 | } |
---|
[35] | 771 | return false; |
---|
[32] | 772 | } |
---|
| 773 | |
---|
[62] | 774 | void GraphDisplayerCanvas::deleteItem(Node node_to_delete) |
---|
[27] | 775 | { |
---|
[28] | 776 | delete(nodetextmap[node_to_delete]); |
---|
[27] | 777 | delete(nodesmap[node_to_delete]); |
---|
[96] | 778 | (mytab.mapstorage).graph.erase(node_to_delete); |
---|
[27] | 779 | } |
---|
| 780 | |
---|
[62] | 781 | void GraphDisplayerCanvas::deleteItem(Edge edge_to_delete) |
---|
[27] | 782 | { |
---|
[28] | 783 | delete(edgetextmap[edge_to_delete]); |
---|
[27] | 784 | delete(edgesmap[edge_to_delete]); |
---|
[96] | 785 | (mytab.mapstorage).graph.erase(edge_to_delete); |
---|
[27] | 786 | } |
---|
| 787 | |
---|
[150] | 788 | void GraphDisplayerCanvas::textReposition(XY new_place) |
---|
[27] | 789 | { |
---|
[150] | 790 | new_place+=(XY(10,10)); |
---|
[35] | 791 | edgetextmap[forming_edge]->property_x().set_value(new_place.x); |
---|
| 792 | edgetextmap[forming_edge]->property_y().set_value(new_place.y); |
---|
[27] | 793 | } |
---|
| 794 | |
---|
[147] | 795 | void GraphDisplayerCanvas::toggleEdgeActivity(EdgeBase* active_bre, bool on) |
---|
[27] | 796 | { |
---|
| 797 | if(on) |
---|
[147] | 798 | { |
---|
| 799 | if(forming_edge!=INVALID) |
---|
[27] | 800 | { |
---|
[147] | 801 | std::cerr << "ERROR!!!! Valid edge found!" << std::endl; |
---|
[27] | 802 | } |
---|
[147] | 803 | else |
---|
| 804 | { |
---|
| 805 | for (EdgeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
---|
| 806 | { |
---|
| 807 | if(edgesmap[i]==active_bre) |
---|
| 808 | { |
---|
| 809 | forming_edge=i; |
---|
| 810 | } |
---|
| 811 | } |
---|
| 812 | } |
---|
| 813 | } |
---|
[27] | 814 | else |
---|
[147] | 815 | { |
---|
| 816 | if(forming_edge!=INVALID) |
---|
[27] | 817 | { |
---|
[147] | 818 | forming_edge=INVALID; |
---|
[27] | 819 | } |
---|
[147] | 820 | else |
---|
| 821 | { |
---|
| 822 | std::cerr << "ERROR!!!! Invalid edge found!" << std::endl; |
---|
| 823 | } |
---|
| 824 | } |
---|
[27] | 825 | } |
---|