source/designer/designer.cpp

   1 /* $Id$
   2
   3 This file is part of R²C²
   4 Copyright © 2006-2011 Mikkosoft Productions, Mikko Rasa
   5 Distributed under the GPL
   6 */
   7
   8 #include <signal.h>
   9 #include <algorithm>
  10 #include <cmath>
  11 #include <msp/fs/utils.h>
  12 #include <msp/gl/blend.h>
  13 #include <msp/gl/framebuffer.h>
  14 #include <msp/gl/matrix.h>
  15 #include <msp/gl/misc.h>
  16 #include <msp/gl/projection.h>
  17 #include <msp/gl/rendermode.h>
  18 #include <msp/gl/select.h>
  19 #include <msp/gl/tests.h>
  20 #include <msp/gl/texture2d.h>
  21 #include <msp/input/keys.h>
  22 #include <msp/io/print.h>
  23 #include <msp/strings/codec.h>
  24 #include <msp/strings/lexicalcast.h>
  25 #include <msp/strings/utf8.h>
  26 #include <msp/strings/utils.h>
  27 #include <msp/time/units.h>
  28 #include <msp/time/utils.h>
  29 #include "libr2c2/route.h"
  30 #include "libr2c2/tracktype.h"
  31 #include "libr2c2/zone.h"
  32 #include "3d/path.h"
  33 #include "designer.h"
  34 #include "input.h"
  35 #include "layoutbar.h"
  36 #include "manipulator.h"
  37 #include "measure.h"
  38 #include "routebar.h"
  39 #include "selection.h"
  40 #include "svgexporter.h"
  41 #include "trackbar.h"
  42 #include "trackproperties.h"
  43 #include "zonebar.h"
  44 #include "zoneproperties.h"
  45
  46 using namespace std;
  47 using namespace R2C2;
  48 using namespace Msp;
  49
  50 Application::RegApp<Designer> Designer::reg;
  51
  52 Designer::Designer(int argc, char **argv):
  53         window(1280, 960),
  54         ui_res("r2c2.res"),
  55         root(ui_res, window),
  56         base_object(0),
  57         cur_route(0),
  58         cur_zone(0),
  59         mode(SELECT),
  60         manipulator(*this, root, selection),
  61         measure(*this),
  62         camera_ctl(*this, root, camera),
  63         track_wrap(*this, selection)
  64 {
  65         window.set_title("Railway Designer");
  66         window.signal_close.connect(sigc::bind(sigc::mem_fun(this, &Designer::exit), 0));
  67
  68         selection.signal_changed.connect(sigc::mem_fun(this, &Designer::selection_changed));
  69         manipulator.signal_status.connect(sigc::mem_fun(this, &Designer::manipulation_status));
  70         manipulator.signal_done.connect(sigc::mem_fun(this, &Designer::manipulation_done));
  71         measure.signal_changed.connect(sigc::mem_fun(this, &Designer::measure_changed));
  72         measure.signal_done.connect(sigc::mem_fun(this, &Designer::measure_done));
  73
  74         // Setup catalogue and layout
  75         DataFile::load(catalogue, "tracks.dat");
  76
  77         cat_layout_3d = new Layout3D(catalogue.get_layout());
  78
  79         layout = new Layout(catalogue);
  80         layout_3d = new Layout3D(*layout);
  81
  82         layout->signal_track_added.connect(sigc::mem_fun(this, &Designer::track_added));
  83         layout->signal_track_removed.connect(sigc::mem_fun(this, &Designer::track_removed));
  84
  85         if(argc>1)
  86         {
  87                 filename = argv[1];
  88                 DataFile::load(*layout, argv[1]);
  89
  90                 if(!layout->get_base().empty())
  91                 {
  92                         base_object = new GL::Object;
  93                         DataFile::load(*base_object, layout->get_base());
  94                 }
  95         }
  96
  97         // Setup OpenGL
  98         pipeline = new GL::Pipeline(window.get_width(), window.get_height(), false);
  99         pipeline->set_camera(&camera);
 100         pipeline->add_renderable_for_pass(layout_3d->get_scene(), 0);
 101         if(base_object)
 102                 pipeline->add_renderable(*base_object);
 103         pipeline->add_renderable_for_pass(track_wrap, "unlit");
 104         pipeline->add_renderable_for_pass(layout_3d->get_path_scene(), "unlit");
 105         pipeline->add_renderable_for_pass(layout_3d->get_endpoint_scene(), "unlit");
 106
 107         light.set_position(0, -0.259, 0.966, 0);
 108         lighting.attach(0, light);
 109
 110         GL::PipelinePass *pass = &pipeline->add_pass(0);
 111         pass->lighting = &lighting;
 112         pass->depth_test = &GL::DepthTest::lequal();
 113
 114         pass = &pipeline->add_pass("unlit");
 115         pass->depth_test = &GL::DepthTest::lequal();
 116         pass->blend = &GL::Blend::alpha();
 117
 118         pass = &pipeline->add_pass("blended");
 119         pass->lighting = &lighting;
 120         pass->depth_test = &GL::DepthTest::lequal();
 121         pass->blend = &GL::Blend::alpha();
 122
 123         camera.set_up_direction(GL::Vector3(0, 0, 1));
 124         camera.set_look_direction(GL::Vector3(0, 0.5, -0.866));
 125
 126         // Setup UI
 127         root.signal_key_press.connect(sigc::mem_fun(this, &Designer::key_press));
 128         root.signal_button_press.connect(sigc::mem_fun(this, &Designer::button_press));
 129         root.signal_pointer_motion.connect(sigc::mem_fun(this, &Designer::pointer_motion));
 130         root.signal_tooltip.connect(sigc::mem_fun(this, &Designer::tooltip));
 131
 132         toolbars.push_back(new Layoutbar(*this));
 133         toolbars.push_back(new Trackbar(*this));
 134         toolbars.push_back(new Routebar(*this));
 135         toolbars.push_back(new Zonebar(*this));
 136         for(vector<Toolbar *>::iterator i=toolbars.begin(); i!=toolbars.end(); ++i)
 137         {
 138                 root.add(**i);
 139                 if(i!=toolbars.begin())
 140                         (*i)->expand(false);
 141                 (*i)->signal_expanded.connect(sigc::hide(sigc::mem_fun(this, &Designer::arrange_toolbars)));
 142         }
 143         arrange_toolbars();
 144
 145         GLtk::Panel *statusbar = new GLtk::Panel;
 146         root.add(*statusbar);
 147         statusbar->set_size(window.get_width(), 20);
 148         statusbar->set_focusable(false);
 149
 150         lbl_status = new GLtk::Label;
 151         statusbar->add(*lbl_status);
 152         lbl_status->set_geometry(GLtk::Geometry(20, 2, 300, 16));
 153
 154         overlay = new Overlay3D(window, camera, ui_res.get_default_font());
 155
 156         camera_ctl.view_all();
 157
 158         const Layout3D::TrackMap &tracks = layout_3d->get_tracks();
 159         for(Layout3D::TrackMap::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 160                 update_track_icon(*i->second);
 161 }
 162
 163 Designer::~Designer()
 164 {
 165         for(vector<Toolbar *>::iterator i=toolbars.begin(); i!=toolbars.end(); ++i)
 166                 delete *i;
 167         delete overlay;
 168         delete pipeline;
 169         delete base_object;
 170         delete layout_3d;
 171         delete layout;
 172         delete cat_layout_3d;
 173 }
 174
 175 int Designer::main()
 176 {
 177         window.show();
 178
 179         mode = SELECT;
 180
 181         return Application::main();
 182 }
 183
 184 void Designer::save()
 185 {
 186         InputDialog *input = new InputDialog(*this, "Save layout", filename);
 187         input->signal_accept.connect(sigc::mem_fun(layout, &Layout::save));
 188 }
 189
 190 void Designer::quit()
 191 {
 192         exit(0);
 193 }
 194
 195 void Designer::new_track()
 196 {
 197         if(mode!=SELECT)
 198                 return;
 199
 200         mode = CATALOGUE;
 201         lbl_status->set_text("Select new track or press Esc to cancel");
 202 }
 203
 204 void Designer::erase_tracks()
 205 {
 206         if(mode!=SELECT)
 207                 return;
 208
 209         set<Track *> tracks = selection.get_tracks();
 210         selection.clear();
 211         for(set<Track *>::iterator i=tracks.begin(); i!=tracks.end(); ++i)
 212         {
 213                 overlay->clear(layout_3d->get_track(**i));
 214                 delete *i;
 215         }
 216 }
 217
 218 void Designer::track_properties()
 219 {
 220         if(mode!=SELECT || selection.empty())
 221                 return;
 222
 223         TrackProperties *track_prop = new TrackProperties(selection);
 224         root.add(*track_prop);
 225         const GLtk::Geometry &root_geom = root.get_geometry();
 226         const GLtk::Geometry &dlg_geom = track_prop->get_geometry();
 227         track_prop->set_position((root_geom.w-dlg_geom.w)/2, (root_geom.h-dlg_geom.h)/2);
 228
 229         track_prop->signal_response.connect(sigc::mem_fun(this, &Designer::track_properties_response));
 230 }
 231
 232 void Designer::extend_track()
 233 {
 234         if(mode!=SELECT)
 235                 return;
 236
 237         if(manipulator.start_extend())
 238                 mode = MANIPULATE;
 239 }
 240
 241 void Designer::connect_tracks()
 242 {
 243         if(mode!=SELECT)
 244                 return;
 245
 246         manipulator.connect();
 247 }
 248
 249 void Designer::flatten_tracks()
 250 {
 251         if(mode!=SELECT)
 252                 return;
 253
 254         manipulator.flatten();
 255 }
 256
 257 void Designer::svg_export()
 258 {
 259         InputDialog *input = new InputDialog(*this, "SVG export", FS::basepart(filename)+".svg");
 260         input->signal_accept.connect(sigc::mem_fun(this, &Designer::svg_export_accept));
 261 }
 262
 263 void Designer::edit_route(Route *r)
 264 {
 265         cur_route = r;
 266         cur_zone = 0;
 267         if(cur_route)
 268                 show_route(*cur_route);
 269         else
 270                 clear_paths();
 271 }
 272
 273 void Designer::rename_route()
 274 {
 275         if(mode!=SELECT || !cur_route)
 276                 return;
 277
 278         InputDialog *input = new InputDialog(*this, "Route name", cur_route->get_name());
 279         input->signal_accept.connect(sigc::mem_fun(this, &Designer::route_name_accept));
 280 }
 281
 282 void Designer::add_selection_to_route()
 283 {
 284         if(!cur_route)
 285                 return;
 286
 287         try
 288         {
 289                 cur_route->add_tracks(selection.get_tracks());
 290         }
 291         catch(const Exception &e)
 292         {
 293                 lbl_status->set_text(e.what());
 294         }
 295
 296         show_route(*cur_route);
 297 }
 298
 299 void Designer::edit_zone(Zone *z)
 300 {
 301         cur_zone = z;
 302         cur_route = 0;
 303         if(cur_zone)
 304                 show_zone(*cur_zone);
 305         else
 306                 clear_paths();
 307 }
 308
 309 void Designer::zone_properties()
 310 {
 311         if(!cur_zone)
 312                 return;
 313
 314         ZoneProperties *zone_prop = new ZoneProperties(*cur_zone);
 315         root.add(*zone_prop);
 316         const GLtk::Geometry &root_geom = root.get_geometry();
 317         const GLtk::Geometry &dlg_geom = zone_prop->get_geometry();
 318         zone_prop->set_position((root_geom.w-dlg_geom.w)/2, (root_geom.h-dlg_geom.h)/2);
 319 }
 320
 321 void Designer::add_selection_to_zone()
 322 {
 323         if(!cur_zone)
 324                 return;
 325
 326         try
 327         {
 328                 cur_zone->add_tracks(selection.get_tracks());
 329         }
 330         catch(const Exception &e)
 331         {
 332                 lbl_status->set_text(e.what());
 333         }
 334
 335         show_zone(*cur_zone);
 336 }
 337
 338 Vector Designer::map_pointer_to_ground(int x, int y)
 339 {
 340         float xf = x*2.0/window.get_width()-1.0;
 341         float yf = y*2.0/window.get_height()-1.0;
 342         GL::Vector4 vec = camera.unproject(GL::Vector4(xf, yf, 0, 0));
 343         const GL::Vector3 &pos = camera.get_position();
 344
 345         return Vector(pos.x-vec.x*pos.z/vec.z, pos.y-vec.y*pos.z/vec.z);
 346 }
 347
 348 void Designer::tick()
 349 {
 350         const Msp::Time::TimeStamp t = Msp::Time::now();
 351         float dt = (t-last_tick)/Msp::Time::sec;
 352         last_tick = t;
 353
 354         if(mode==MANIPULATE_DONE)
 355                 mode = SELECT;
 356
 357         window.tick();
 358         root.tick();
 359         camera_ctl.tick(dt);
 360
 361         for(list<Track *>::iterator i=new_tracks.begin(); i!=new_tracks.end(); ++i)
 362                 layout_3d->get_track(**i).get_path().set_mask(0);
 363         new_tracks.clear();
 364
 365         render();
 366
 367         window.swap_buffers();
 368 }
 369
 370 void Designer::key_press(unsigned key, unsigned mod, wchar_t)
 371 {
 372         key = Input::key_from_sys(key);
 373         mod = Input::mod_from_sys(mod);
 374
 375         if(key==Msp::Input::KEY_N && (mod&Input::MOD_SHIFT))
 376                 extend_track();
 377         else if(key==Msp::Input::KEY_N)
 378                 new_track();
 379         else if(key==Msp::Input::KEY_G)
 380         {
 381                 manipulator.start_move();
 382                 mode = MANIPULATE;
 383         }
 384         else if(key==Msp::Input::KEY_R)
 385         {
 386                 manipulator.start_rotate();
 387                 mode = MANIPULATE;
 388         }
 389         else if(key==Msp::Input::KEY_D)
 390         {
 391                 manipulator.duplicate();
 392                 manipulator.start_move();
 393                 mode = MANIPULATE;
 394         }
 395         else if(key==Msp::Input::KEY_W)
 396                 save();
 397         else if(key==Msp::Input::KEY_PLUS)
 398                 selection.select_more();
 399         else if(key==Msp::Input::KEY_L && (mod&Input::MOD_SHIFT))
 400                 selection.select_blocks();
 401         else if(key==Msp::Input::KEY_L)
 402                 selection.select_linked();
 403         else if(key==Msp::Input::KEY_M)
 404         {
 405                 measure.start();
 406                 mode = MEASURE;
 407         }
 408         else if(key==Msp::Input::KEY_Z)
 409         {
 410                 manipulator.start_elevate();
 411                 mode = MANIPULATE;
 412         }
 413         else if(key==Msp::Input::KEY_ESC)
 414         {
 415                 if(mode==MANIPULATE)
 416                         manipulator.cancel();
 417                 else if(mode==CATALOGUE)
 418                         mode = SELECT;
 419                 else
 420                         selection.clear();
 421         }
 422         else if(key==Msp::Input::KEY_X)
 423                 erase_tracks();
 424         else if(key==Msp::Input::KEY_F && (mod&Input::MOD_SHIFT))
 425         {
 426                 const set<Track *> &tracks = selection.get_tracks();
 427                 const set<Track *> &ltracks = layout->get_tracks();
 428                 for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 429                 {
 430                         (*i)->set_flex(!(*i)->get_flex());
 431                         (*i)->break_links();
 432                         for(set<Track *>::const_iterator j=ltracks.begin(); j!=ltracks.end(); ++j)
 433                                 if(*j!=*i)
 434                                         (*i)->snap_to(**j, true);
 435
 436                         update_track_icon(layout_3d->get_track(**i));
 437                 }
 438         }
 439         else if(key==Msp::Input::KEY_F)
 440                 flatten_tracks();
 441         else if(key==Msp::Input::KEY_E && (mod&Input::MOD_SHIFT))
 442                 manipulator.even_slope(true);
 443         else if(key==Msp::Input::KEY_E)
 444                 manipulator.even_slope();
 445         else if(key==Msp::Input::KEY_A)
 446         {
 447                 if(cur_route)
 448                         add_selection_to_route();
 449                 else if(cur_zone)
 450                         add_selection_to_zone();
 451         }
 452         else if(key==Msp::Input::KEY_C)
 453                 connect_tracks();
 454         else if(key==Msp::Input::KEY_V)
 455                 svg_export();
 456         else if(key==Msp::Input::KEY_P)
 457                 track_properties();
 458 }
 459
 460 void Designer::button_press(int x, int y, unsigned btn, unsigned mod)
 461 {
 462         y = window.get_height()-y-1;
 463         mod = Input::mod_from_sys(mod);
 464
 465         Vector ground = map_pointer_to_ground(x, y);
 466
 467         if(mode==CATALOGUE)
 468         {
 469                 if(btn==1)
 470                 {
 471                         Track *ctrack = pick_track(x, y);
 472                         if(ctrack)
 473                         {
 474                                 Track *track = new Track(*layout, ctrack->get_type());
 475                                 track->set_position(ground);
 476
 477                                 selection.clear();
 478                                 selection.add_track(track);
 479
 480                                 mode = SELECT;
 481                         }
 482                 }
 483                 else
 484                         mode = SELECT;
 485         }
 486         else if(mode==SELECT)
 487         {
 488                 if(btn==1)
 489                 {
 490                         Track *track = pick_track(x, y);
 491                         if(track)
 492                         {
 493                                 if(!(mod&Input::MOD_SHIFT))
 494                                         selection.clear();
 495                                 selection.toggle_track(track);
 496                         }
 497                 }
 498         }
 499         else if(mode==MEASURE)
 500                 measure.button_press(x, y, ground.x, ground.y, btn);
 501 }
 502
 503 void Designer::pointer_motion(int x, int y)
 504 {
 505         y = window.get_height()-y-1;
 506
 507         if(!root.get_child_at(x, y))
 508         {
 509                 Vector ground = map_pointer_to_ground(x, y);
 510                 measure.pointer_motion(x, y, ground.x, ground.y);
 511         }
 512 }
 513
 514 void Designer::apply_camera()
 515 {
 516         if(mode==CATALOGUE)
 517         {
 518                 GL::matrix_mode(GL::PROJECTION);
 519                 GL::load_identity();
 520                 GL::frustum_centered(0.11046, 0.082843, 0.1, 10);
 521                 GL::matrix_mode(GL::MODELVIEW);
 522                 GL::load_identity();
 523                 GL::translate(0, 0, -1);
 524         }
 525         else
 526                 camera.apply();
 527 }
 528
 529 void Designer::render()
 530 {
 531         GL::Framebuffer::system().clear(GL::COLOR_BUFFER_BIT|GL::DEPTH_BUFFER_BIT);
 532
 533         if(mode==CATALOGUE)
 534         {
 535                 apply_camera();
 536                 cat_layout_3d->get_scene().render();
 537         }
 538         else
 539         {
 540                 pipeline->render_all();
 541                 {
 542                         GL::Bind bind_blend(GL::Blend::alpha());
 543                         overlay->render(0);
 544                 }
 545
 546                 GL::Bind bind_depth(GL::DepthTest::lequal());
 547                 if(mode==MEASURE)
 548                         measure.render();
 549         }
 550
 551         GL::matrix_mode(GL::PROJECTION);
 552         GL::load_identity();
 553         GL::ortho_bottomleft(window.get_width(), window.get_height());
 554         GL::matrix_mode(GL::MODELVIEW);
 555         GL::load_identity();
 556
 557         GL::Bind bind_blend(GL::Blend::alpha());
 558         root.render();
 559         // XXX Should fix GLtk so these would not be needed
 560         GL::Texture::unbind();
 561         glColor3f(1.0, 1.0, 1.0);
 562 }
 563
 564 void Designer::track_added(Track &trk)
 565 {
 566         new_tracks.push_back(&trk);
 567 }
 568
 569 void Designer::track_removed(Track &trk)
 570 {
 571         list<Track *>::iterator i = find(new_tracks.begin(), new_tracks.end(), &trk);
 572         if(i!=new_tracks.end())
 573                 new_tracks.erase(i);
 574 }
 575
 576 Track *Designer::pick_track(int x, int y)
 577 {
 578         float xx = x*2.0/window.get_width()-1.0;
 579         float yy = y*2.0/window.get_height()-1.0;
 580         if(mode==CATALOGUE)
 581                 return catalogue.get_layout().pick_track(Vector(0, 0, 1), Vector(xx*0.05523, yy*0.042421, -0.1));
 582         else
 583         {
 584                 const GL::Vector3 &cpos = camera.get_position();
 585                 GL::Vector4 cray = camera.unproject(GL::Vector4(xx, yy, 0, 0));
 586                 return layout->pick_track(Vector(cpos.x, cpos.y, cpos.z), Vector(cray.x, cray.y, cray.z));
 587         }
 588 }
 589
 590 void Designer::update_track_icon(Track3D &track)
 591 {
 592         overlay->clear(track);
 593
 594         if(track.get_track().get_flex())
 595                 overlay->add_graphic(track, "flex");
 596
 597         if(unsigned sid = track.get_track().get_sensor_id())
 598         {
 599                 overlay->add_graphic(track, "sensor");
 600                 overlay->set_label(track, lexical_cast(sid));
 601         }
 602         else if(unsigned tid = track.get_track().get_turnout_id())
 603         {
 604                 if(tid<0x800)
 605                 {
 606                         overlay->add_graphic(track, "turnout");
 607                         overlay->set_label(track, lexical_cast(tid));
 608                 }
 609         }
 610 }
 611
 612 void Designer::selection_changed()
 613 {
 614         const set<Track *> &tracks = selection.get_tracks();
 615         if(tracks.empty())
 616                 lbl_status->set_text(string());
 617         else
 618         {
 619                 float len = 0;
 620                 for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 621                         len += (*i)->get_type().get_total_length();
 622                 lbl_status->set_text(format("%.2fm of track selected\n", len));
 623         }
 624 }
 625
 626 void Designer::manipulation_status(const string &status)
 627 {
 628         lbl_status->set_text(status);
 629 }
 630
 631 void Designer::manipulation_done(bool)
 632 {
 633         mode = MANIPULATE_DONE;
 634         selection_changed();
 635 }
 636
 637 void Designer::measure_changed()
 638 {
 639         float pard = measure.get_parallel_distance()*1000;
 640         float perpd = measure.get_perpendicular_distance()*1000;
 641         float d = sqrt(pard*pard+perpd*perpd);
 642         float adiff = measure.get_angle_difference()*180/M_PI;
 643         string info = format("Par %.1fmm - Perp %.1fmm - Total %.1fmm - Angle %.1f°", pard, perpd, d, adiff);
 644         lbl_status->set_text(info);
 645 }
 646
 647 void Designer::measure_done()
 648 {
 649         mode = SELECT;
 650         selection_changed();
 651 }
 652
 653 void Designer::arrange_toolbars()
 654 {
 655         unsigned x = 0;
 656         for(vector<Toolbar *>::iterator i=toolbars.begin(); i!=toolbars.end(); ++i)
 657         {
 658                 const GLtk::Geometry &geom = (*i)->get_geometry();
 659                 (*i)->set_position(x, window.get_height()-geom.h);
 660                 x += geom.w;
 661         }
 662 }
 663
 664 void Designer::track_properties_response(int)
 665 {
 666         const set<Track *> &tracks = selection.get_tracks();
 667         for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 668                 update_track_icon(layout_3d->get_track(**i));
 669 }
 670
 671 void Designer::route_name_accept(const string &text)
 672 {
 673         if(cur_route)
 674                 cur_route->set_name(text);
 675 }
 676
 677 void Designer::svg_export_accept(const string &text)
 678 {
 679         SvgExporter svg_exp(*layout);
 680         svg_exp.save(text);
 681 }
 682
 683 string Designer::tooltip(int x, int y)
 684 {
 685         if(Track *track = pick_track(x, y))
 686         {
 687                 const TrackType &ttype = track->get_type();
 688                 string info = format("%d %s", ttype.get_article_number(), ttype.get_description());
 689                 if(mode!=CATALOGUE && abs(track->get_slope())>1e-4)
 690                         info += format(" (slope %.1f%%)", abs(track->get_slope()/ttype.get_total_length()*100));
 691                 if(track->get_turnout_id())
 692                         info += format(" (turnout %d)", track->get_turnout_id());
 693                 else if(track->get_sensor_id())
 694                         info += format(" (sensor %d)", track->get_sensor_id());
 695
 696                 return info;
 697         }
 698
 699         return string();
 700 }
 701
 702 void Designer::clear_paths()
 703 {
 704         const set<Track *> &ltracks = layout->get_tracks();
 705         for(set<Track *>::iterator i=ltracks.begin(); i!=ltracks.end(); ++i)
 706         {
 707                 Track3D &t3d = layout_3d->get_track(**i);
 708                 t3d.get_path().set_mask(0);
 709         }
 710 }
 711
 712 void Designer::show_route(const Route &route)
 713 {
 714         clear_paths();
 715
 716         const set<Track *> &rtracks = route.get_tracks();
 717         for(set<Track *>::iterator i=rtracks.begin(); i!=rtracks.end(); ++i)
 718         {
 719                 Track3D &t3d = layout_3d->get_track(**i);
 720                 t3d.get_path().set_color(GL::Color(0.5, 0.8, 1.0));
 721                 int path = -1;
 722                 if(unsigned tid = (*i)->get_turnout_id())
 723                         path = route.get_turnout(tid);
 724                 if(path>=0)
 725                         t3d.get_path().set_path(path);
 726                 else
 727                         t3d.get_path().set_mask((*i)->get_type().get_paths());
 728         }
 729 }
 730
 731 void Designer::show_zone(const Zone &zone)
 732 {
 733         clear_paths();
 734
 735         const Zone::TrackSet &ztracks = zone.get_tracks();
 736         for(Zone::TrackSet::const_iterator i=ztracks.begin(); i!=ztracks.end(); ++i)
 737         {
 738                 Track3D &t3d = layout_3d->get_track(**i);
 739                 t3d.get_path().set_color(GL::Color(0.8, 1.0, 0.5));
 740                 t3d.get_path().set_mask((*i)->get_type().get_paths());
 741         }
 742 }