[53] | 1 | #include "graph_displayer_canvas.h" |
---|
[167] | 2 | #include <lemon/random.h> |
---|
[59] | 3 | #include <cmath> |
---|
[6] | 4 | |
---|
[96] | 5 | GraphDisplayerCanvas::GraphDisplayerCanvas(NoteBookTab & mainw) : |
---|
[94] | 6 | nodesmap(mainw.mapstorage.graph), edgesmap(mainw.mapstorage.graph), edgetextmap(mainw.mapstorage.graph), |
---|
| 7 | nodetextmap(mainw.mapstorage.graph), displayed_graph(*(root()), 0, 0), |
---|
[66] | 8 | isbutton(0), active_item(NULL), target_item(NULL), nodemap_to_edit(""), |
---|
[160] | 9 | edgemap_to_edit(""), autoscale(true), zoomtrack(false), radius_size(20), edge_width(10), |
---|
[172] | 10 | iterations(20), attraction(0.05), propulsation(40000), was_redesigned(false), is_drawn(false), mytab(mainw) |
---|
[6] | 11 | { |
---|
[53] | 12 | //base event handler is move tool |
---|
| 13 | actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::moveEventHandler), false); |
---|
| 14 | actual_tool=MOVE; |
---|
[34] | 15 | |
---|
[53] | 16 | active_node=INVALID; |
---|
| 17 | active_edge=INVALID; |
---|
| 18 | forming_edge=INVALID; |
---|
| 19 | } |
---|
[9] | 20 | |
---|
[53] | 21 | GraphDisplayerCanvas::~GraphDisplayerCanvas() |
---|
| 22 | { |
---|
[96] | 23 | for (NodeIt n((mytab.mapstorage).graph); n != INVALID; ++n) |
---|
[94] | 24 | { |
---|
| 25 | delete nodesmap[n]; |
---|
| 26 | delete nodetextmap[n]; |
---|
| 27 | } |
---|
| 28 | |
---|
[96] | 29 | for (EdgeIt e((mytab.mapstorage).graph); e != INVALID; ++e) |
---|
[94] | 30 | { |
---|
| 31 | delete edgesmap[e]; |
---|
| 32 | delete edgetextmap[e]; |
---|
| 33 | } |
---|
| 34 | } |
---|
[6] | 35 | |
---|
[94] | 36 | void GraphDisplayerCanvas::propertyChange(bool itisedge, int prop) |
---|
| 37 | { |
---|
| 38 | if(itisedge) |
---|
| 39 | { |
---|
| 40 | propertyUpdate(Edge(INVALID), prop); |
---|
| 41 | } |
---|
| 42 | else |
---|
| 43 | { |
---|
| 44 | propertyUpdate(Node(INVALID), prop); |
---|
| 45 | } |
---|
| 46 | } |
---|
| 47 | |
---|
| 48 | void GraphDisplayerCanvas::propertyUpdate(Edge edge) |
---|
| 49 | { |
---|
| 50 | for(int i=0;i<EDGE_PROPERTY_NUM;i++) |
---|
| 51 | { |
---|
| 52 | propertyUpdate(edge, i); |
---|
| 53 | } |
---|
| 54 | } |
---|
| 55 | |
---|
| 56 | void GraphDisplayerCanvas::propertyUpdate(Node node) |
---|
| 57 | { |
---|
| 58 | for(int i=0;i<NODE_PROPERTY_NUM;i++) |
---|
| 59 | { |
---|
| 60 | propertyUpdate(node, i); |
---|
| 61 | } |
---|
| 62 | } |
---|
| 63 | |
---|
[118] | 64 | void GraphDisplayerCanvas::propertyUpdate(Node node, int prop) |
---|
[94] | 65 | { |
---|
[96] | 66 | std::string mapname=mytab.getActiveNodeMap(prop); |
---|
[94] | 67 | |
---|
[172] | 68 | if(is_drawn) |
---|
[94] | 69 | { |
---|
[172] | 70 | if(mapname!="") |
---|
[94] | 71 | { |
---|
[172] | 72 | if( ( ((mytab.mapstorage).nodemap_storage).find(mapname) != ((mytab.mapstorage).nodemap_storage).end() ) ) |
---|
| 73 | { |
---|
| 74 | switch(prop) |
---|
| 75 | { |
---|
| 76 | case N_RADIUS: |
---|
| 77 | changeNodeRadius(mapname, node); |
---|
| 78 | break; |
---|
| 79 | case N_COLOR: |
---|
| 80 | changeNodeColor(mapname, node); |
---|
| 81 | break; |
---|
| 82 | case N_TEXT: |
---|
| 83 | changeNodeText(mapname, node); |
---|
| 84 | break; |
---|
| 85 | default: |
---|
| 86 | std::cerr<<"Error\n"; |
---|
| 87 | } |
---|
| 88 | } |
---|
| 89 | } |
---|
| 90 | else //mapname=="" |
---|
| 91 | { |
---|
| 92 | Node node=INVALID; |
---|
[94] | 93 | switch(prop) |
---|
| 94 | { |
---|
| 95 | case N_RADIUS: |
---|
[172] | 96 | resetNodeRadius(node); |
---|
[94] | 97 | break; |
---|
| 98 | case N_COLOR: |
---|
[172] | 99 | resetNodeColor(node); |
---|
[94] | 100 | break; |
---|
| 101 | case N_TEXT: |
---|
[172] | 102 | resetNodeText(node); |
---|
[94] | 103 | break; |
---|
| 104 | default: |
---|
| 105 | std::cerr<<"Error\n"; |
---|
| 106 | } |
---|
| 107 | } |
---|
| 108 | } |
---|
| 109 | } |
---|
| 110 | |
---|
[118] | 111 | void GraphDisplayerCanvas::propertyUpdate(Edge edge, int prop) |
---|
[94] | 112 | { |
---|
[96] | 113 | std::string mapname=mytab.getActiveEdgeMap(prop); |
---|
[94] | 114 | |
---|
[172] | 115 | if(is_drawn) |
---|
[94] | 116 | { |
---|
[172] | 117 | if(mapname!="") |
---|
| 118 | { |
---|
| 119 | if( ( ((mytab.mapstorage).edgemap_storage).find(mapname) != ((mytab.mapstorage).edgemap_storage).end() ) ) |
---|
| 120 | { |
---|
| 121 | switch(prop) |
---|
| 122 | { |
---|
| 123 | case E_WIDTH: |
---|
| 124 | changeEdgeWidth(mapname, edge); |
---|
| 125 | break; |
---|
| 126 | case E_COLOR: |
---|
| 127 | changeEdgeColor(mapname, edge); |
---|
| 128 | break; |
---|
| 129 | case E_TEXT: |
---|
| 130 | changeEdgeText(mapname, edge); |
---|
| 131 | break; |
---|
| 132 | default: |
---|
| 133 | std::cerr<<"Error\n"; |
---|
| 134 | } |
---|
| 135 | } |
---|
| 136 | } |
---|
| 137 | else //mapname=="" |
---|
[94] | 138 | { |
---|
| 139 | switch(prop) |
---|
| 140 | { |
---|
| 141 | case E_WIDTH: |
---|
[172] | 142 | resetEdgeWidth(edge); |
---|
[94] | 143 | break; |
---|
| 144 | case E_COLOR: |
---|
[172] | 145 | resetEdgeColor(edge); |
---|
[94] | 146 | break; |
---|
| 147 | case E_TEXT: |
---|
[172] | 148 | resetEdgeText(edge); |
---|
[94] | 149 | break; |
---|
| 150 | default: |
---|
| 151 | std::cerr<<"Error\n"; |
---|
| 152 | } |
---|
| 153 | } |
---|
| 154 | } |
---|
[53] | 155 | } |
---|
| 156 | |
---|
| 157 | void GraphDisplayerCanvas::drawGraph() |
---|
| 158 | { |
---|
[6] | 159 | //first edges are drawn, to hide joining with nodes later |
---|
| 160 | |
---|
[96] | 161 | for (EdgeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
---|
[6] | 162 | { |
---|
[151] | 163 | if (mytab.mapstorage.graph.source(i) == mytab.mapstorage.graph.target(i)) |
---|
| 164 | { |
---|
| 165 | edgesmap[i]=new LoopEdge(displayed_graph, i, *this); |
---|
| 166 | } |
---|
| 167 | else |
---|
| 168 | { |
---|
| 169 | edgesmap[i]=new BrokenEdge(displayed_graph, i, *this); |
---|
| 170 | } |
---|
[6] | 171 | //initializing edge-text as well, to empty string |
---|
| 172 | |
---|
[98] | 173 | XY text_pos=mytab.mapstorage.arrow_pos[i]; |
---|
| 174 | text_pos+=(XY(10,10)); |
---|
[25] | 175 | |
---|
| 176 | edgetextmap[i]=new Gnome::Canvas::Text(displayed_graph, text_pos.x, text_pos.y, ""); |
---|
[28] | 177 | edgetextmap[i]->property_fill_color().set_value("darkgreen"); |
---|
[149] | 178 | edgetextmap[i]->signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::mapEditEventHandler), false); |
---|
[63] | 179 | edgetextmap[i]->raise_to_top(); |
---|
[6] | 180 | } |
---|
| 181 | |
---|
| 182 | //afterwards nodes come to be drawn |
---|
| 183 | |
---|
[96] | 184 | for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
---|
[6] | 185 | { |
---|
| 186 | //drawing bule nodes, with black line around them |
---|
| 187 | |
---|
[53] | 188 | nodesmap[i]=new Gnome::Canvas::Ellipse( |
---|
| 189 | displayed_graph, |
---|
[96] | 190 | (mytab.mapstorage).coords[i].x-20, |
---|
| 191 | (mytab.mapstorage).coords[i].y-20, |
---|
| 192 | (mytab.mapstorage).coords[i].x+20, |
---|
| 193 | (mytab.mapstorage).coords[i].y+20); |
---|
[6] | 194 | *(nodesmap[i]) << Gnome::Canvas::Properties::fill_color("blue"); |
---|
| 195 | *(nodesmap[i]) << Gnome::Canvas::Properties::outline_color("black"); |
---|
[63] | 196 | nodesmap[i]->raise_to_top(); |
---|
[28] | 197 | |
---|
| 198 | //initializing edge-text as well, to empty string |
---|
| 199 | |
---|
[150] | 200 | XY text_pos( |
---|
[96] | 201 | ((mytab.mapstorage).coords[i].x+node_property_defaults[N_RADIUS]+5), |
---|
| 202 | ((mytab.mapstorage).coords[i].y+node_property_defaults[N_RADIUS]+5)); |
---|
[28] | 203 | |
---|
[53] | 204 | nodetextmap[i]=new Gnome::Canvas::Text(displayed_graph, |
---|
| 205 | text_pos.x, text_pos.y, ""); |
---|
[28] | 206 | nodetextmap[i]->property_fill_color().set_value("darkblue"); |
---|
[149] | 207 | nodetextmap[i]->signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::mapEditEventHandler), false); |
---|
[63] | 208 | nodetextmap[i]->raise_to_top(); |
---|
[6] | 209 | } |
---|
| 210 | |
---|
[172] | 211 | is_drawn=true; |
---|
| 212 | |
---|
| 213 | //upon drawing graph |
---|
| 214 | //properties have to |
---|
| 215 | //be set in as well |
---|
| 216 | for(int i=0;i<NODE_PROPERTY_NUM;i++) |
---|
| 217 | { |
---|
| 218 | propertyUpdate(Node(INVALID), i); |
---|
| 219 | } |
---|
| 220 | |
---|
| 221 | for(int i=0;i<EDGE_PROPERTY_NUM;i++) |
---|
| 222 | { |
---|
| 223 | propertyUpdate(Edge(INVALID), i); |
---|
| 224 | } |
---|
| 225 | |
---|
[6] | 226 | updateScrollRegion(); |
---|
| 227 | } |
---|
| 228 | |
---|
[53] | 229 | void GraphDisplayerCanvas::clear() |
---|
[6] | 230 | { |
---|
[53] | 231 | active_node=INVALID; |
---|
| 232 | active_edge=INVALID; |
---|
| 233 | forming_edge=INVALID; |
---|
[6] | 234 | |
---|
[96] | 235 | for (NodeIt n((mytab.mapstorage).graph); n != INVALID; ++n) |
---|
[6] | 236 | { |
---|
[53] | 237 | delete nodesmap[n]; |
---|
| 238 | delete nodetextmap[n]; |
---|
[6] | 239 | } |
---|
| 240 | |
---|
[96] | 241 | for (EdgeIt e((mytab.mapstorage).graph); e != INVALID; ++e) |
---|
[53] | 242 | { |
---|
| 243 | delete edgesmap[e]; |
---|
| 244 | delete edgetextmap[e]; |
---|
| 245 | } |
---|
[172] | 246 | |
---|
| 247 | is_drawn=false; |
---|
[6] | 248 | } |
---|
[154] | 249 | |
---|
[157] | 250 | void GraphDisplayerCanvas::setView(bool autoscale_p, bool zoomtrack_p, double width_p, double radius_p) |
---|
[154] | 251 | { |
---|
| 252 | autoscale=autoscale_p; |
---|
[157] | 253 | edge_width=width_p; |
---|
| 254 | radius_size=radius_p; |
---|
[156] | 255 | |
---|
| 256 | if((!zoomtrack) && zoomtrack_p) |
---|
| 257 | { |
---|
| 258 | fixed_zoom_factor=get_pixels_per_unit(); |
---|
| 259 | } |
---|
| 260 | |
---|
| 261 | zoomtrack=zoomtrack_p; |
---|
| 262 | |
---|
[154] | 263 | propertyChange(false, N_RADIUS); |
---|
[157] | 264 | propertyChange(true, E_WIDTH); |
---|
[154] | 265 | } |
---|
| 266 | |
---|
[157] | 267 | void GraphDisplayerCanvas::getView(bool & autoscale_p, bool & zoomtrack_p, double& width_p, double& radius_p) |
---|
[154] | 268 | { |
---|
| 269 | autoscale_p=autoscale; |
---|
[156] | 270 | zoomtrack_p=zoomtrack; |
---|
[157] | 271 | width_p=edge_width; |
---|
| 272 | radius_p=radius_size; |
---|
[154] | 273 | } |
---|
[160] | 274 | |
---|
| 275 | void GraphDisplayerCanvas::reDesignGraph() |
---|
| 276 | { |
---|
[166] | 277 | double min_dist=20; |
---|
| 278 | double init_vector_length=25; |
---|
| 279 | |
---|
| 280 | if(!was_redesigned) |
---|
| 281 | { |
---|
| 282 | NodeIt i((mytab.mapstorage).graph); |
---|
[167] | 283 | |
---|
[168] | 284 | dim2::Point<double> init(init_vector_length*rnd(), |
---|
| 285 | init_vector_length*rnd()); |
---|
[166] | 286 | moveNode(init.x, init.y, nodesmap[i], i); |
---|
| 287 | was_redesigned=true; |
---|
| 288 | } |
---|
| 289 | |
---|
[160] | 290 | |
---|
| 291 | //iteration counter |
---|
| 292 | for(int l=0;l<iterations;l++) |
---|
| 293 | { |
---|
| 294 | Graph::NodeMap<double> x(mytab.mapstorage.graph); |
---|
| 295 | Graph::NodeMap<double> y(mytab.mapstorage.graph); |
---|
| 296 | XYMap<Graph::NodeMap<double> > actual_forces; |
---|
| 297 | actual_forces.setXMap(x); |
---|
| 298 | actual_forces.setYMap(y); |
---|
| 299 | |
---|
| 300 | lemon::dim2::Point<double> delta; |
---|
| 301 | |
---|
| 302 | //count actual force for each nodes |
---|
| 303 | for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
---|
| 304 | { |
---|
| 305 | //propulsation of nodes |
---|
| 306 | for (NodeIt j((mytab.mapstorage).graph); j!=INVALID; ++j) |
---|
| 307 | { |
---|
| 308 | if(i!=j) |
---|
| 309 | { |
---|
| 310 | delta=((mytab.mapstorage).coords[i]-(mytab.mapstorage).coords[j]); |
---|
| 311 | |
---|
| 312 | double length_sqr=delta.normSquare(); |
---|
| 313 | double length=sqrt(length_sqr); |
---|
| 314 | if(length_sqr<min_dist) |
---|
| 315 | { |
---|
| 316 | length_sqr=min_dist; |
---|
| 317 | } |
---|
| 318 | |
---|
| 319 | //normalize vector |
---|
| 320 | delta/=length; |
---|
| 321 | |
---|
| 322 | //calculating propulsation strength |
---|
| 323 | //greater distance menas smaller propulsation strength |
---|
| 324 | delta*=propulsation/length_sqr; |
---|
| 325 | |
---|
| 326 | actual_forces.set(i,(actual_forces[i]+delta)); |
---|
| 327 | } |
---|
| 328 | } |
---|
| 329 | //attraction of nodes, to which actual node is bound |
---|
| 330 | for(OutEdgeIt ei((mytab.mapstorage).graph,i);ei!=INVALID;++ei) |
---|
| 331 | { |
---|
| 332 | delta=((mytab.mapstorage).coords[i]-(mytab.mapstorage).coords[mytab.mapstorage.graph.target(ei)]); |
---|
| 333 | |
---|
| 334 | double length_sqr=delta.normSquare(); |
---|
| 335 | double length=sqrt(length_sqr); |
---|
| 336 | if(length_sqr<min_dist) |
---|
| 337 | { |
---|
| 338 | length_sqr=min_dist; |
---|
| 339 | } |
---|
| 340 | |
---|
| 341 | //normalize vector |
---|
| 342 | delta/=length; |
---|
| 343 | |
---|
| 344 | //calculating attraction strength |
---|
| 345 | //greater distance means greater strength |
---|
| 346 | delta*=attraction*length; |
---|
| 347 | |
---|
| 348 | actual_forces.set(i,actual_forces[i]-delta); |
---|
| 349 | } |
---|
| 350 | for(InEdgeIt ei((mytab.mapstorage).graph,i);ei!=INVALID;++ei) |
---|
| 351 | { |
---|
| 352 | delta=((mytab.mapstorage).coords[i]-(mytab.mapstorage).coords[mytab.mapstorage.graph.source(ei)]); |
---|
| 353 | |
---|
| 354 | double length_sqr=delta.normSquare(); |
---|
| 355 | double length=sqrt(length_sqr); |
---|
| 356 | if(length_sqr<min_dist) |
---|
| 357 | { |
---|
| 358 | length_sqr=min_dist; |
---|
| 359 | } |
---|
| 360 | |
---|
| 361 | //normalize vector |
---|
| 362 | delta/=length; |
---|
| 363 | |
---|
| 364 | //calculating attraction strength |
---|
| 365 | //greater distance means greater strength |
---|
| 366 | delta*=attraction*length; |
---|
| 367 | |
---|
| 368 | actual_forces.set(i,actual_forces[i]-delta); |
---|
| 369 | } |
---|
| 370 | } |
---|
| 371 | for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
---|
| 372 | { |
---|
| 373 | moveNode(actual_forces[i].x, actual_forces[i].y, nodesmap[i], i); |
---|
| 374 | } |
---|
| 375 | } |
---|
| 376 | } |
---|
| 377 | |
---|
| 378 | void GraphDisplayerCanvas::get_design_data(double & attraction_p, double & propulsation_p, int & iterations_p) |
---|
| 379 | { |
---|
| 380 | attraction_p=attraction; |
---|
| 381 | propulsation_p=propulsation; |
---|
| 382 | iterations_p=iterations; |
---|
| 383 | } |
---|
| 384 | |
---|
| 385 | void GraphDisplayerCanvas::set_attraction(double attraction_p) |
---|
| 386 | { |
---|
| 387 | attraction=attraction_p; |
---|
| 388 | } |
---|
| 389 | |
---|
| 390 | void GraphDisplayerCanvas::set_propulsation(double propulsation_p) |
---|
| 391 | { |
---|
| 392 | propulsation=propulsation_p; |
---|
| 393 | } |
---|
| 394 | |
---|
| 395 | void GraphDisplayerCanvas::set_iteration(int iterations_p) |
---|
| 396 | { |
---|
| 397 | iterations=iterations_p; |
---|
| 398 | } |
---|
| 399 | |
---|