[174] | 1 | /* -*- C++ -*- |
---|
| 2 | * |
---|
| 3 | * This file is a part of LEMON, a generic C++ optimization library |
---|
| 4 | * |
---|
| 5 | * Copyright (C) 2003-2006 |
---|
| 6 | * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
---|
| 7 | * (Egervary Research Group on Combinatorial Optimization, EGRES). |
---|
| 8 | * |
---|
| 9 | * Permission to use, modify and distribute this software is granted |
---|
| 10 | * provided that this copyright notice appears in all copies. For |
---|
| 11 | * precise terms see the accompanying LICENSE file. |
---|
| 12 | * |
---|
| 13 | * This software is provided "AS IS" with no warranty of any kind, |
---|
| 14 | * express or implied, and with no claim as to its suitability for any |
---|
| 15 | * purpose. |
---|
| 16 | * |
---|
| 17 | */ |
---|
| 18 | |
---|
[53] | 19 | #include "graph_displayer_canvas.h" |
---|
[167] | 20 | #include <lemon/random.h> |
---|
[59] | 21 | #include <cmath> |
---|
[6] | 22 | |
---|
[96] | 23 | GraphDisplayerCanvas::GraphDisplayerCanvas(NoteBookTab & mainw) : |
---|
[94] | 24 | nodesmap(mainw.mapstorage.graph), edgesmap(mainw.mapstorage.graph), edgetextmap(mainw.mapstorage.graph), |
---|
| 25 | nodetextmap(mainw.mapstorage.graph), displayed_graph(*(root()), 0, 0), |
---|
[66] | 26 | isbutton(0), active_item(NULL), target_item(NULL), nodemap_to_edit(""), |
---|
[160] | 27 | edgemap_to_edit(""), autoscale(true), zoomtrack(false), radius_size(20), edge_width(10), |
---|
[184] | 28 | was_redesigned(false), is_drawn(false), mytab(mainw), |
---|
| 29 | background_set(false) |
---|
[6] | 30 | { |
---|
[187] | 31 | //add mouse scroll event handler - it won't be changed, it handles zoom |
---|
| 32 | signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::scrollEventHandler), false); |
---|
| 33 | |
---|
[53] | 34 | //base event handler is move tool |
---|
| 35 | actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::moveEventHandler), false); |
---|
| 36 | actual_tool=MOVE; |
---|
[34] | 37 | |
---|
[187] | 38 | |
---|
[53] | 39 | active_node=INVALID; |
---|
| 40 | active_edge=INVALID; |
---|
| 41 | forming_edge=INVALID; |
---|
[184] | 42 | |
---|
| 43 | setBackground(); |
---|
| 44 | } |
---|
| 45 | |
---|
| 46 | void GraphDisplayerCanvas::setBackground() |
---|
| 47 | { |
---|
| 48 | if (background_set) |
---|
| 49 | { |
---|
| 50 | delete background; |
---|
| 51 | } |
---|
| 52 | if (mytab.mapstorage.isBackgroundSet()) |
---|
| 53 | { |
---|
| 54 | background_set = true; |
---|
| 55 | refBackground = Gdk::Pixbuf::create_from_file( |
---|
| 56 | mytab.mapstorage.getBackgroundFilename()); |
---|
| 57 | background = new Gnome::Canvas::Pixbuf( |
---|
| 58 | *(root()), |
---|
| 59 | 0.0 - refBackground->get_width() / 2.0, |
---|
| 60 | 0.0 - refBackground->get_height() / 2.0, |
---|
| 61 | refBackground); |
---|
| 62 | background->lower_to_bottom(); |
---|
| 63 | } |
---|
| 64 | else |
---|
| 65 | { |
---|
| 66 | background_set = false; |
---|
| 67 | } |
---|
[53] | 68 | } |
---|
[9] | 69 | |
---|
[53] | 70 | GraphDisplayerCanvas::~GraphDisplayerCanvas() |
---|
| 71 | { |
---|
[96] | 72 | for (NodeIt n((mytab.mapstorage).graph); n != INVALID; ++n) |
---|
[94] | 73 | { |
---|
| 74 | delete nodesmap[n]; |
---|
[204] | 75 | // delete nodetextmap[n]; |
---|
[94] | 76 | } |
---|
| 77 | |
---|
[96] | 78 | for (EdgeIt e((mytab.mapstorage).graph); e != INVALID; ++e) |
---|
[94] | 79 | { |
---|
| 80 | delete edgesmap[e]; |
---|
[204] | 81 | // delete edgetextmap[e]; |
---|
[94] | 82 | } |
---|
| 83 | } |
---|
[6] | 84 | |
---|
[94] | 85 | void GraphDisplayerCanvas::propertyChange(bool itisedge, int prop) |
---|
| 86 | { |
---|
| 87 | if(itisedge) |
---|
| 88 | { |
---|
| 89 | propertyUpdate(Edge(INVALID), prop); |
---|
| 90 | } |
---|
| 91 | else |
---|
| 92 | { |
---|
| 93 | propertyUpdate(Node(INVALID), prop); |
---|
| 94 | } |
---|
| 95 | } |
---|
| 96 | |
---|
| 97 | void GraphDisplayerCanvas::propertyUpdate(Edge edge) |
---|
| 98 | { |
---|
| 99 | for(int i=0;i<EDGE_PROPERTY_NUM;i++) |
---|
| 100 | { |
---|
| 101 | propertyUpdate(edge, i); |
---|
| 102 | } |
---|
| 103 | } |
---|
| 104 | |
---|
| 105 | void GraphDisplayerCanvas::propertyUpdate(Node node) |
---|
| 106 | { |
---|
| 107 | for(int i=0;i<NODE_PROPERTY_NUM;i++) |
---|
| 108 | { |
---|
| 109 | propertyUpdate(node, i); |
---|
| 110 | } |
---|
| 111 | } |
---|
| 112 | |
---|
[118] | 113 | void GraphDisplayerCanvas::propertyUpdate(Node node, int prop) |
---|
[94] | 114 | { |
---|
[96] | 115 | std::string mapname=mytab.getActiveNodeMap(prop); |
---|
[94] | 116 | |
---|
[172] | 117 | if(is_drawn) |
---|
[94] | 118 | { |
---|
[172] | 119 | if(mapname!="") |
---|
[94] | 120 | { |
---|
[172] | 121 | if( ( ((mytab.mapstorage).nodemap_storage).find(mapname) != ((mytab.mapstorage).nodemap_storage).end() ) ) |
---|
| 122 | { |
---|
| 123 | switch(prop) |
---|
| 124 | { |
---|
| 125 | case N_RADIUS: |
---|
| 126 | changeNodeRadius(mapname, node); |
---|
| 127 | break; |
---|
| 128 | case N_COLOR: |
---|
| 129 | changeNodeColor(mapname, node); |
---|
| 130 | break; |
---|
| 131 | case N_TEXT: |
---|
| 132 | changeNodeText(mapname, node); |
---|
| 133 | break; |
---|
| 134 | default: |
---|
| 135 | std::cerr<<"Error\n"; |
---|
| 136 | } |
---|
| 137 | } |
---|
| 138 | } |
---|
| 139 | else //mapname=="" |
---|
| 140 | { |
---|
| 141 | Node node=INVALID; |
---|
[94] | 142 | switch(prop) |
---|
| 143 | { |
---|
| 144 | case N_RADIUS: |
---|
[172] | 145 | resetNodeRadius(node); |
---|
[94] | 146 | break; |
---|
| 147 | case N_COLOR: |
---|
[172] | 148 | resetNodeColor(node); |
---|
[94] | 149 | break; |
---|
| 150 | case N_TEXT: |
---|
[172] | 151 | resetNodeText(node); |
---|
[94] | 152 | break; |
---|
| 153 | default: |
---|
| 154 | std::cerr<<"Error\n"; |
---|
| 155 | } |
---|
| 156 | } |
---|
| 157 | } |
---|
| 158 | } |
---|
| 159 | |
---|
[118] | 160 | void GraphDisplayerCanvas::propertyUpdate(Edge edge, int prop) |
---|
[94] | 161 | { |
---|
[96] | 162 | std::string mapname=mytab.getActiveEdgeMap(prop); |
---|
[94] | 163 | |
---|
[172] | 164 | if(is_drawn) |
---|
[94] | 165 | { |
---|
[172] | 166 | if(mapname!="") |
---|
| 167 | { |
---|
| 168 | if( ( ((mytab.mapstorage).edgemap_storage).find(mapname) != ((mytab.mapstorage).edgemap_storage).end() ) ) |
---|
| 169 | { |
---|
| 170 | switch(prop) |
---|
| 171 | { |
---|
| 172 | case E_WIDTH: |
---|
| 173 | changeEdgeWidth(mapname, edge); |
---|
| 174 | break; |
---|
| 175 | case E_COLOR: |
---|
| 176 | changeEdgeColor(mapname, edge); |
---|
| 177 | break; |
---|
| 178 | case E_TEXT: |
---|
| 179 | changeEdgeText(mapname, edge); |
---|
| 180 | break; |
---|
| 181 | default: |
---|
| 182 | std::cerr<<"Error\n"; |
---|
| 183 | } |
---|
| 184 | } |
---|
| 185 | } |
---|
| 186 | else //mapname=="" |
---|
[94] | 187 | { |
---|
| 188 | switch(prop) |
---|
| 189 | { |
---|
| 190 | case E_WIDTH: |
---|
[172] | 191 | resetEdgeWidth(edge); |
---|
[94] | 192 | break; |
---|
| 193 | case E_COLOR: |
---|
[172] | 194 | resetEdgeColor(edge); |
---|
[94] | 195 | break; |
---|
| 196 | case E_TEXT: |
---|
[172] | 197 | resetEdgeText(edge); |
---|
[94] | 198 | break; |
---|
| 199 | default: |
---|
| 200 | std::cerr<<"Error\n"; |
---|
| 201 | } |
---|
| 202 | } |
---|
| 203 | } |
---|
[53] | 204 | } |
---|
| 205 | |
---|
| 206 | void GraphDisplayerCanvas::drawGraph() |
---|
| 207 | { |
---|
[6] | 208 | //first edges are drawn, to hide joining with nodes later |
---|
| 209 | |
---|
[96] | 210 | for (EdgeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
---|
[6] | 211 | { |
---|
[151] | 212 | if (mytab.mapstorage.graph.source(i) == mytab.mapstorage.graph.target(i)) |
---|
| 213 | { |
---|
| 214 | edgesmap[i]=new LoopEdge(displayed_graph, i, *this); |
---|
| 215 | } |
---|
| 216 | else |
---|
| 217 | { |
---|
| 218 | edgesmap[i]=new BrokenEdge(displayed_graph, i, *this); |
---|
| 219 | } |
---|
[6] | 220 | //initializing edge-text as well, to empty string |
---|
| 221 | |
---|
[98] | 222 | XY text_pos=mytab.mapstorage.arrow_pos[i]; |
---|
| 223 | text_pos+=(XY(10,10)); |
---|
[25] | 224 | |
---|
[204] | 225 | // edgetextmap[i]=new Gnome::Canvas::Text(displayed_graph, text_pos.x, text_pos.y, ""); |
---|
| 226 | // edgetextmap[i]->property_fill_color().set_value("darkgreen"); |
---|
| 227 | // edgetextmap[i]->signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::mapEditEventHandler), false); |
---|
| 228 | // edgetextmap[i]->raise_to_top(); |
---|
[6] | 229 | } |
---|
| 230 | |
---|
| 231 | //afterwards nodes come to be drawn |
---|
| 232 | |
---|
[96] | 233 | for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
---|
[6] | 234 | { |
---|
| 235 | //drawing bule nodes, with black line around them |
---|
| 236 | |
---|
[53] | 237 | nodesmap[i]=new Gnome::Canvas::Ellipse( |
---|
| 238 | displayed_graph, |
---|
[96] | 239 | (mytab.mapstorage).coords[i].x-20, |
---|
| 240 | (mytab.mapstorage).coords[i].y-20, |
---|
| 241 | (mytab.mapstorage).coords[i].x+20, |
---|
| 242 | (mytab.mapstorage).coords[i].y+20); |
---|
[6] | 243 | *(nodesmap[i]) << Gnome::Canvas::Properties::fill_color("blue"); |
---|
| 244 | *(nodesmap[i]) << Gnome::Canvas::Properties::outline_color("black"); |
---|
[63] | 245 | nodesmap[i]->raise_to_top(); |
---|
[28] | 246 | |
---|
| 247 | //initializing edge-text as well, to empty string |
---|
| 248 | |
---|
[150] | 249 | XY text_pos( |
---|
[96] | 250 | ((mytab.mapstorage).coords[i].x+node_property_defaults[N_RADIUS]+5), |
---|
| 251 | ((mytab.mapstorage).coords[i].y+node_property_defaults[N_RADIUS]+5)); |
---|
[28] | 252 | |
---|
[204] | 253 | // nodetextmap[i]=new Gnome::Canvas::Text(displayed_graph, |
---|
| 254 | // text_pos.x, text_pos.y, ""); |
---|
| 255 | // nodetextmap[i]->property_fill_color().set_value("darkblue"); |
---|
| 256 | // nodetextmap[i]->signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::mapEditEventHandler), false); |
---|
| 257 | // nodetextmap[i]->raise_to_top(); |
---|
[6] | 258 | } |
---|
| 259 | |
---|
[172] | 260 | is_drawn=true; |
---|
| 261 | |
---|
| 262 | //upon drawing graph |
---|
| 263 | //properties have to |
---|
| 264 | //be set in as well |
---|
| 265 | for(int i=0;i<NODE_PROPERTY_NUM;i++) |
---|
| 266 | { |
---|
| 267 | propertyUpdate(Node(INVALID), i); |
---|
| 268 | } |
---|
| 269 | |
---|
| 270 | for(int i=0;i<EDGE_PROPERTY_NUM;i++) |
---|
| 271 | { |
---|
| 272 | propertyUpdate(Edge(INVALID), i); |
---|
| 273 | } |
---|
| 274 | |
---|
[6] | 275 | updateScrollRegion(); |
---|
| 276 | } |
---|
| 277 | |
---|
[53] | 278 | void GraphDisplayerCanvas::clear() |
---|
[6] | 279 | { |
---|
[53] | 280 | active_node=INVALID; |
---|
| 281 | active_edge=INVALID; |
---|
| 282 | forming_edge=INVALID; |
---|
[6] | 283 | |
---|
[96] | 284 | for (NodeIt n((mytab.mapstorage).graph); n != INVALID; ++n) |
---|
[6] | 285 | { |
---|
[53] | 286 | delete nodesmap[n]; |
---|
[204] | 287 | // delete nodetextmap[n]; |
---|
[6] | 288 | } |
---|
| 289 | |
---|
[96] | 290 | for (EdgeIt e((mytab.mapstorage).graph); e != INVALID; ++e) |
---|
[53] | 291 | { |
---|
| 292 | delete edgesmap[e]; |
---|
[204] | 293 | // delete edgetextmap[e]; |
---|
[53] | 294 | } |
---|
[172] | 295 | |
---|
| 296 | is_drawn=false; |
---|
[6] | 297 | } |
---|
[154] | 298 | |
---|
[157] | 299 | void GraphDisplayerCanvas::setView(bool autoscale_p, bool zoomtrack_p, double width_p, double radius_p) |
---|
[154] | 300 | { |
---|
| 301 | autoscale=autoscale_p; |
---|
[157] | 302 | edge_width=width_p; |
---|
| 303 | radius_size=radius_p; |
---|
[156] | 304 | |
---|
| 305 | if((!zoomtrack) && zoomtrack_p) |
---|
| 306 | { |
---|
| 307 | fixed_zoom_factor=get_pixels_per_unit(); |
---|
| 308 | } |
---|
| 309 | |
---|
| 310 | zoomtrack=zoomtrack_p; |
---|
| 311 | |
---|
[154] | 312 | propertyChange(false, N_RADIUS); |
---|
[157] | 313 | propertyChange(true, E_WIDTH); |
---|
[154] | 314 | } |
---|
| 315 | |
---|
[157] | 316 | void GraphDisplayerCanvas::getView(bool & autoscale_p, bool & zoomtrack_p, double& width_p, double& radius_p) |
---|
[154] | 317 | { |
---|
| 318 | autoscale_p=autoscale; |
---|
[156] | 319 | zoomtrack_p=zoomtrack; |
---|
[157] | 320 | width_p=edge_width; |
---|
| 321 | radius_p=radius_size; |
---|
[154] | 322 | } |
---|
[160] | 323 | |
---|
| 324 | void GraphDisplayerCanvas::reDesignGraph() |
---|
| 325 | { |
---|
[187] | 326 | double max_coord=50000; |
---|
[166] | 327 | double min_dist=20; |
---|
| 328 | double init_vector_length=25; |
---|
| 329 | |
---|
| 330 | if(!was_redesigned) |
---|
| 331 | { |
---|
| 332 | NodeIt i((mytab.mapstorage).graph); |
---|
[167] | 333 | |
---|
[168] | 334 | dim2::Point<double> init(init_vector_length*rnd(), |
---|
| 335 | init_vector_length*rnd()); |
---|
[166] | 336 | moveNode(init.x, init.y, nodesmap[i], i); |
---|
| 337 | was_redesigned=true; |
---|
| 338 | } |
---|
[177] | 339 | |
---|
| 340 | double attraction; |
---|
| 341 | double propulsation; |
---|
| 342 | int iterations; |
---|
| 343 | |
---|
| 344 | (mytab.mapstorage).get_design_data(attraction, propulsation, iterations); |
---|
[160] | 345 | |
---|
| 346 | //iteration counter |
---|
| 347 | for(int l=0;l<iterations;l++) |
---|
| 348 | { |
---|
| 349 | Graph::NodeMap<double> x(mytab.mapstorage.graph); |
---|
| 350 | Graph::NodeMap<double> y(mytab.mapstorage.graph); |
---|
| 351 | XYMap<Graph::NodeMap<double> > actual_forces; |
---|
| 352 | actual_forces.setXMap(x); |
---|
| 353 | actual_forces.setYMap(y); |
---|
| 354 | |
---|
| 355 | //count actual force for each nodes |
---|
| 356 | for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
---|
| 357 | { |
---|
| 358 | //propulsation of nodes |
---|
| 359 | for (NodeIt j((mytab.mapstorage).graph); j!=INVALID; ++j) |
---|
| 360 | { |
---|
| 361 | if(i!=j) |
---|
| 362 | { |
---|
[180] | 363 | lemon::dim2::Point<double> delta = |
---|
| 364 | ((mytab.mapstorage).coords[i]- |
---|
| 365 | (mytab.mapstorage).coords[j]); |
---|
[160] | 366 | |
---|
[180] | 367 | const double length_sqr=std::max(delta.normSquare(),min_dist); |
---|
[160] | 368 | |
---|
| 369 | //normalize vector |
---|
[180] | 370 | delta/=sqrt(length_sqr); |
---|
[160] | 371 | |
---|
| 372 | //calculating propulsation strength |
---|
| 373 | //greater distance menas smaller propulsation strength |
---|
| 374 | delta*=propulsation/length_sqr; |
---|
| 375 | |
---|
| 376 | actual_forces.set(i,(actual_forces[i]+delta)); |
---|
| 377 | } |
---|
| 378 | } |
---|
| 379 | //attraction of nodes, to which actual node is bound |
---|
| 380 | for(OutEdgeIt ei((mytab.mapstorage).graph,i);ei!=INVALID;++ei) |
---|
| 381 | { |
---|
[180] | 382 | lemon::dim2::Point<double> delta = |
---|
| 383 | ((mytab.mapstorage).coords[i]- |
---|
| 384 | (mytab.mapstorage).coords[mytab.mapstorage. |
---|
| 385 | graph.target(ei)]); |
---|
| 386 | |
---|
| 387 | //calculating attraction strength |
---|
| 388 | //greater distance means greater strength |
---|
| 389 | delta*=attraction; |
---|
| 390 | |
---|
| 391 | actual_forces.set(i,actual_forces[i]-delta); |
---|
[160] | 392 | } |
---|
| 393 | for(InEdgeIt ei((mytab.mapstorage).graph,i);ei!=INVALID;++ei) |
---|
| 394 | { |
---|
[180] | 395 | lemon::dim2::Point<double> delta = |
---|
| 396 | ((mytab.mapstorage).coords[i]- |
---|
| 397 | (mytab.mapstorage).coords[mytab.mapstorage. |
---|
| 398 | graph.source(ei)]); |
---|
| 399 | |
---|
| 400 | //calculating attraction strength |
---|
| 401 | //greater distance means greater strength |
---|
| 402 | delta*=attraction; |
---|
| 403 | |
---|
| 404 | actual_forces.set(i,actual_forces[i]-delta); |
---|
[160] | 405 | } |
---|
| 406 | } |
---|
| 407 | for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i) |
---|
| 408 | { |
---|
[187] | 409 | if(((mytab.mapstorage).coords[i].x)+actual_forces[i].x>max_coord) |
---|
| 410 | { |
---|
| 411 | actual_forces[i].x=max_coord-((mytab.mapstorage).coords[i].x); |
---|
| 412 | std::cout << "Correction! " << (((mytab.mapstorage).coords[i].x)+actual_forces[i].x) << std::endl; |
---|
| 413 | } |
---|
| 414 | else if(((mytab.mapstorage).coords[i].x)+actual_forces[i].x<(0-max_coord)) |
---|
| 415 | { |
---|
| 416 | actual_forces[i].x=0-max_coord-((mytab.mapstorage).coords[i].x); |
---|
| 417 | std::cout << "Correction! " << (((mytab.mapstorage).coords[i].x)+actual_forces[i].x) << std::endl; |
---|
| 418 | } |
---|
| 419 | if(((mytab.mapstorage).coords[i].y)+actual_forces[i].y>max_coord) |
---|
| 420 | { |
---|
| 421 | actual_forces[i].y=max_coord-((mytab.mapstorage).coords[i].y); |
---|
| 422 | std::cout << "Correction! " << (((mytab.mapstorage).coords[i].y)+actual_forces[i].y) << std::endl; |
---|
| 423 | } |
---|
| 424 | else if(((mytab.mapstorage).coords[i].y)+actual_forces[i].y<(0-max_coord)) |
---|
| 425 | { |
---|
| 426 | actual_forces[i].y=0-max_coord-((mytab.mapstorage).coords[i].y); |
---|
| 427 | std::cout << "Correction! " << (((mytab.mapstorage).coords[i].y)+actual_forces[i].y) << std::endl; |
---|
| 428 | } |
---|
[160] | 429 | moveNode(actual_forces[i].x, actual_forces[i].y, nodesmap[i], i); |
---|
| 430 | } |
---|
| 431 | } |
---|
| 432 | } |
---|
| 433 | |
---|