source/designer/designer.cpp

   1 /* $Id$
   2
   3 This file is part of the MSP Märklin suite
   4 Copyright © 2006-2010 Mikkosoft Productions, Mikko Rasa
   5 Distributed under the GPL
   6 */
   7
   8 #include <signal.h>
   9 #include <cmath>
  10 #include <GL/gl.h>
  11 #include <msp/gl/blend.h>
  12 #include <msp/gl/framebuffer.h>
  13 #include <msp/gl/matrix.h>
  14 #include <msp/gl/misc.h>
  15 #include <msp/gl/projection.h>
  16 #include <msp/gl/rendermode.h>
  17 #include <msp/gl/select.h>
  18 #include <msp/gl/tests.h>
  19 #include <msp/gl/texture2d.h>
  20 #include <msp/input/keys.h>
  21 #include <msp/io/print.h>
  22 #include <msp/strings/codec.h>
  23 #include <msp/strings/lexicalcast.h>
  24 #include <msp/strings/utf8.h>
  25 #include <msp/strings/utils.h>
  26 #include <msp/time/units.h>
  27 #include <msp/time/utils.h>
  28 #include "libmarklin/route.h"
  29 #include "libmarklin/tracktype.h"
  30 #include "3d/path.h"
  31 #include "designer.h"
  32 #include "input.h"
  33 #include "manipulator.h"
  34 #include "measure.h"
  35 #include "selection.h"
  36 #include "toolbar.h"
  37
  38 using namespace std;
  39 using namespace Marklin;
  40 using namespace Msp;
  41
  42 Application::RegApp<Designer> Designer::reg;
  43
  44 Designer::Designer(int argc, char **argv):
  45         window(1280, 960),
  46         base_object(0),
  47         cur_route(0),
  48         mode(SELECT),
  49         manipulator(*this, selection),
  50         measure(*this),
  51         camera_ctl(window, camera),
  52         track_wrap(*this, selection)
  53 {
  54         window.set_title("Railway Designer");
  55         window.signal_close.connect(sigc::bind(sigc::mem_fun(this, &Designer::exit), 0));
  56
  57         selection.signal_changed.connect(sigc::mem_fun(this, &Designer::selection_changed));
  58         manipulator.signal_status.connect(sigc::mem_fun(this, &Designer::manipulation_status));
  59         manipulator.signal_done.connect(sigc::mem_fun(this, &Designer::manipulation_done));
  60         measure.signal_changed.connect(sigc::mem_fun(this, &Designer::measure_changed));
  61         measure.signal_done.connect(sigc::mem_fun(this, &Designer::measure_done));
  62
  63         // Setup catalogue and layout
  64         DataFile::load(catalogue, "tracks.dat");
  65
  66         cat_layout_3d = new Layout3D(catalogue.get_layout());
  67
  68         layout = new Layout(catalogue);
  69         layout_3d = new Layout3D(*layout);
  70
  71         layout->signal_track_added.connect(sigc::mem_fun(this, &Designer::track_added));
  72
  73         if(argc>1)
  74         {
  75                 filename = argv[1];
  76                 DataFile::load(*layout, argv[1]);
  77
  78                 if(!layout->get_base().empty())
  79                 {
  80                         base_object = new GL::Object;
  81                         DataFile::load(*base_object, layout->get_base());
  82                 }
  83         }
  84
  85         // Setup OpenGL
  86         GL::enable(GL_CULL_FACE);
  87
  88         pipeline = new GL::Pipeline(window.get_width(), window.get_height(), false);
  89         pipeline->set_camera(&camera);
  90         pipeline->add_renderable_for_pass(layout_3d->get_scene(), 0);
  91         if(base_object)
  92                 pipeline->add_renderable(*base_object);
  93         pipeline->add_renderable_for_pass(track_wrap, "unlit");
  94         pipeline->add_renderable_for_pass(layout_3d->get_path_scene(), "unlit");
  95         pipeline->add_renderable_for_pass(layout_3d->get_endpoint_scene(), "unlit");
  96
  97         light.set_position(0, -0.259, 0.966, 0);
  98         lighting.attach(0, light);
  99
 100         GL::PipelinePass *pass = &pipeline->add_pass(0);
 101         pass->lighting = &lighting;
 102         pass->depth_test = &GL::DepthTest::lequal();
 103
 104         pass = &pipeline->add_pass("unlit");
 105         pass->depth_test = &GL::DepthTest::lequal();
 106         pass->blend = &GL::Blend::alpha();
 107
 108         pass = &pipeline->add_pass("blended");
 109         pass->lighting = &lighting;
 110         pass->depth_test = &GL::DepthTest::lequal();
 111         pass->blend = &GL::Blend::alpha();
 112
 113         camera.set_up_direction(GL::Vector3(0, 0, 1));
 114         view_all();
 115
 116         // Setup UI
 117         DataFile::load(ui_res, "marklin.res");
 118         root = new GLtk::Root(ui_res, window);
 119         root->signal_key_press.connect(sigc::mem_fun(this, &Designer::key_press));
 120         root->signal_button_press.connect(sigc::mem_fun(this, &Designer::button_press));
 121         root->signal_pointer_motion.connect(sigc::mem_fun(this, &Designer::pointer_motion));
 122         root->signal_tooltip.connect(sigc::mem_fun(this, &Designer::tooltip));
 123
 124         toolbar = new Toolbar(*this);
 125         root->add(*toolbar);
 126         toolbar->set_position(0, window.get_height()-toolbar->get_geometry().h);
 127         toolbar->set_focusable(false);
 128
 129         GLtk::Panel *statusbar = new GLtk::Panel(ui_res);
 130         root->add(*statusbar);
 131         statusbar->set_size(window.get_width(), 20);
 132         statusbar->set_focusable(false);
 133
 134         lbl_status = new GLtk::Label(ui_res);
 135         statusbar->add(*lbl_status);
 136         lbl_status->set_geometry(GLtk::Geometry(20, 2, 300, 16));
 137
 138         overlay = new Overlay3D(window, camera, ui_res.get_default_font());
 139
 140         const list<Track3D *> &tracks = layout_3d->get_tracks();
 141         for(list<Track3D *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 142                 update_track_icon(**i);
 143 }
 144
 145 Designer::~Designer()
 146 {
 147         delete overlay;
 148         delete root;
 149         delete pipeline;
 150         delete base_object;
 151         delete layout_3d;
 152         delete layout;
 153         delete cat_layout_3d;
 154 }
 155
 156 int Designer::main()
 157 {
 158         window.show();
 159
 160         mode = SELECT;
 161
 162         return Application::main();
 163 }
 164
 165 void Designer::save()
 166 {
 167         InputDialog *input = new InputDialog(*this, "Save layout", filename);
 168         input->signal_accept.connect(sigc::mem_fun(layout, &Layout::save));
 169 }
 170
 171 void Designer::quit()
 172 {
 173         exit(0);
 174 }
 175
 176 void Designer::new_track()
 177 {
 178         mode = CATALOGUE;
 179 }
 180
 181 void Designer::set_turnout_id()
 182 {
 183         Track *track = selection.get_track();
 184         if(selection.size()==1 && track->get_type().is_turnout())
 185         {
 186                 InputDialog *input = new InputDialog(*this, "Turnout ID", lexical_cast(track->get_turnout_id()));
 187                 input->signal_accept.connect(sigc::mem_fun(this, &Designer::turnout_id_accept));
 188         }
 189 }
 190
 191 void Designer::set_sensor_id()
 192 {
 193         const set<Track *> &tracks = selection.get_tracks();
 194         bool ok = false;
 195         int id = -1;
 196         for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 197         {
 198                 if(!(*i)->get_type().is_turnout())
 199                         ok = true;
 200                 if(static_cast<int>((*i)->get_sensor_id())!=id)
 201                 {
 202                         if(id==-1)
 203                                 id = (*i)->get_sensor_id();
 204                         else
 205                                 id = -2;
 206                 }
 207         }
 208
 209         if(ok)
 210         {
 211                 InputDialog *input = new InputDialog(*this, "Sensor ID", (id>=0 ? lexical_cast(id) : string()));
 212                 input->signal_accept.connect(sigc::mem_fun(this, &Designer::sensor_id_accept));
 213         }
 214 }
 215
 216 void Designer::rename_route()
 217 {
 218         if(!cur_route)
 219                 return;
 220
 221         InputDialog *input = new InputDialog(*this, "Route name", cur_route->get_name());
 222         input->signal_accept.connect(sigc::mem_fun(this, &Designer::route_name_accept));
 223 }
 224
 225 void Designer::edit_route(Route *r)
 226 {
 227         cur_route = r;
 228         show_route(r);
 229 }
 230
 231 void Designer::add_selection_to_route()
 232 {
 233         if(!cur_route)
 234                 return;
 235
 236         try
 237         {
 238                 cur_route->add_tracks(selection.get_tracks());
 239         }
 240         catch(const Exception &e)
 241         {
 242                 lbl_status->set_text(e.what());
 243         }
 244
 245         show_route(cur_route);
 246 }
 247
 248 Point Designer::map_pointer_coords(int x, int y)
 249 {
 250         float xf = x*2.0/window.get_width()-1.0;
 251         float yf = y*2.0/window.get_height()-1.0;
 252         GL::Vector4 vec = camera.unproject(GL::Vector4(xf, yf, 0, 0));
 253         const GL::Vector3 &pos = camera.get_position();
 254
 255         return Point(pos.x-vec.x*pos.z/vec.z, pos.y-vec.y*pos.z/vec.z);
 256 }
 257
 258 void Designer::tick()
 259 {
 260         const Msp::Time::TimeStamp t = Msp::Time::now();
 261         float dt = (t-last_tick)/Msp::Time::sec;
 262         last_tick = t;
 263
 264         window.get_display().tick();
 265         root->tick();
 266         camera_ctl.tick(dt);
 267
 268         for(list<Track *>::iterator i=new_tracks.begin(); i!=new_tracks.end(); ++i)
 269                 layout_3d->get_track(**i).get_path().set_mask(0);
 270         new_tracks.clear();
 271
 272         render();
 273
 274         window.swap_buffers();
 275 }
 276
 277 void Designer::key_press(unsigned key, unsigned mod, wchar_t)
 278 {
 279         key = Input::key_from_sys(key);
 280         mod = Input::mod_from_sys(mod);
 281
 282         if(key==Msp::Input::KEY_N)
 283                 new_track();
 284         else if(key==Msp::Input::KEY_G)
 285         {
 286                 manipulator.start_move();
 287                 mode = MANIPULATE;
 288         }
 289         else if(key==Msp::Input::KEY_R)
 290         {
 291                 manipulator.start_rotate();
 292                 mode = MANIPULATE;
 293         }
 294         else if(key==Msp::Input::KEY_D)
 295         {
 296                 manipulator.duplicate();
 297                 manipulator.start_move();
 298                 mode = MANIPULATE;
 299         }
 300         else if(key==Msp::Input::KEY_W)
 301                 save();
 302         else if(key==Msp::Input::KEY_PLUS)
 303                 selection.select_more();
 304         else if(key==Msp::Input::KEY_L && (mod&Input::MOD_SHIFT))
 305                 selection.select_blocks();
 306         else if(key==Msp::Input::KEY_L)
 307                 selection.select_linked();
 308         else if(key==Msp::Input::KEY_M)
 309         {
 310                 measure.start();
 311                 mode = MEASURE;
 312         }
 313         else if(key==Msp::Input::KEY_Z)
 314         {
 315                 manipulator.start_elevate();
 316                 mode = MANIPULATE;
 317         }
 318         else if(key==Msp::Input::KEY_ESC)
 319         {
 320                 if(mode==MANIPULATE)
 321                         manipulator.cancel();
 322                 else if(mode==CATALOGUE)
 323                         mode = SELECT;
 324                 else
 325                         selection.clear();
 326         }
 327         else if(key==Msp::Input::KEY_X)
 328         {
 329                 set<Track *> tracks = selection.get_tracks();
 330                 selection.clear();
 331                 for(set<Track *>::iterator i=tracks.begin(); i!=tracks.end(); ++i)
 332                 {
 333                         overlay->clear(layout_3d->get_track(**i));
 334                         layout->remove_track(**i);
 335                         delete *i;
 336                 }
 337         }
 338         else if(key==Msp::Input::KEY_F && (mod&Input::MOD_SHIFT))
 339         {
 340                 const set<Track *> &tracks = selection.get_tracks();
 341                 const set<Track *> &ltracks = layout->get_tracks();
 342                 for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 343                 {
 344                         (*i)->set_flex(!(*i)->get_flex());
 345                         (*i)->break_links();
 346                         for(set<Track *>::const_iterator j=ltracks.begin(); j!=ltracks.end(); ++j)
 347                                 if(*j!=*i)
 348                                         (*i)->snap_to(**j, true);
 349
 350                         update_track_icon(layout_3d->get_track(**i));
 351                 }
 352         }
 353         else if(key==Msp::Input::KEY_F)
 354                 manipulator.flatten();
 355         else if(key==Msp::Input::KEY_E && (mod&Input::MOD_SHIFT))
 356                 manipulator.even_slope(true);
 357         else if(key==Msp::Input::KEY_E)
 358                 manipulator.even_slope();
 359         else if(key==Msp::Input::KEY_T)
 360                 set_turnout_id();
 361         else if(key==Msp::Input::KEY_S)
 362                 set_sensor_id();
 363         else if(key==Msp::Input::KEY_A)
 364                 add_selection_to_route();
 365 }
 366
 367 void Designer::button_press(int x, int y, unsigned btn, unsigned mod)
 368 {
 369         y = window.get_height()-y-1;
 370         mod = Input::mod_from_sys(mod);
 371
 372         Point ground = map_pointer_coords(x, y);
 373
 374         if(mode==CATALOGUE)
 375         {
 376                 if(btn==1)
 377                 {
 378                         Track3D *ctrack = pick_track(x, y);
 379                         if(ctrack)
 380                         {
 381                                 Track *track = new Track(*layout, ctrack->get_track().get_type());
 382                                 track->set_position(ground);
 383
 384                                 selection.clear();
 385                                 selection.add_track(track);
 386
 387                                 mode = SELECT;
 388                         }
 389                 }
 390                 else
 391                         mode = SELECT;
 392         }
 393         else if(mode==SELECT)
 394         {
 395                 if(btn==1)
 396                 {
 397                         Track3D *track = pick_track(x, y);
 398                         if(track)
 399                         {
 400                                 if(!(mod&Input::MOD_SHIFT))
 401                                         selection.clear();
 402                                 selection.toggle_track(&track->get_track());
 403                         }
 404                 }
 405         }
 406         else if(mode==MANIPULATE)
 407                 manipulator.button_press(x, y, ground.x, ground.y, btn);
 408         else if(mode==MEASURE)
 409                 measure.button_press(x, y, ground.x, ground.y, btn);
 410 }
 411
 412 void Designer::pointer_motion(int x, int y)
 413 {
 414         y = window.get_height()-y-1;
 415
 416         if(!root->get_child_at(x, y))
 417         {
 418                 Point ground = map_pointer_coords(x, y);
 419                 manipulator.pointer_motion(x, y, ground.x, ground.y);
 420                 measure.pointer_motion(x, y, ground.x, ground.y);
 421         }
 422 }
 423
 424 void Designer::apply_camera()
 425 {
 426         if(mode==CATALOGUE)
 427         {
 428                 GL::matrix_mode(GL::PROJECTION);
 429                 GL::load_identity();
 430                 GL::frustum_centered(0.11046, 0.082843, 0.1, 10);
 431                 GL::matrix_mode(GL::MODELVIEW);
 432                 GL::load_identity();
 433                 GL::translate(0, 0, -1);
 434         }
 435         else
 436                 camera.apply();
 437 }
 438
 439 void Designer::render()
 440 {
 441         GL::Framebuffer::system().clear(GL::COLOR_BUFFER_BIT|GL::DEPTH_BUFFER_BIT);
 442
 443         if(mode==CATALOGUE)
 444         {
 445                 apply_camera();
 446                 cat_layout_3d->get_scene().render();
 447         }
 448         else
 449         {
 450                 pipeline->render_all();
 451                 GL::enable(GL_CULL_FACE);
 452                 {
 453                         GL::Bind bind_blend(GL::Blend::alpha());
 454                         overlay->render(0);
 455                 }
 456
 457                 GL::Bind bind_depth(GL::DepthTest::lequal());
 458                 if(mode==MEASURE)
 459                         measure.render();
 460         }
 461
 462         GL::matrix_mode(GL::PROJECTION);
 463         GL::load_identity();
 464         GL::ortho_bottomleft(window.get_width(), window.get_height());
 465         GL::matrix_mode(GL::MODELVIEW);
 466         GL::load_identity();
 467
 468         GL::disable(GL::DEPTH_TEST);
 469
 470         GL::Bind bind_blend(GL::Blend::alpha());
 471         root->render();
 472         GL::Texture::unbind();
 473 }
 474
 475 void Designer::track_added(Track &trk)
 476 {
 477         new_tracks.push_back(&trk);
 478 }
 479
 480 Track3D *Designer::pick_track(int x, int y)
 481 {
 482         Layout3D *l = layout_3d;
 483         if(mode==CATALOGUE)
 484                 l = cat_layout_3d;
 485
 486         float xx = ((float(x)-window.get_width()/2)/window.get_height())*0.82843;
 487         float yy = (float(y)/window.get_height()-0.5)*0.82843;
 488         float size = 4.0/window.get_height()*0.82843;
 489
 490         apply_camera();
 491
 492         return l->pick_track(xx, yy, size);
 493 }
 494
 495 void Designer::update_track_icon(Track3D &track)
 496 {
 497         overlay->clear(track);
 498
 499         if(track.get_track().get_flex())
 500                 overlay->add_graphic(track, "flex");
 501
 502         if(unsigned sid = track.get_track().get_sensor_id())
 503         {
 504                 overlay->add_graphic(track, "sensor");
 505                 overlay->set_label(track, lexical_cast(sid));
 506         }
 507         else if(unsigned tid = track.get_track().get_turnout_id())
 508         {
 509                 if(tid<0x800)
 510                 {
 511                         overlay->add_graphic(track, "turnout");
 512                         overlay->set_label(track, lexical_cast(tid));
 513                 }
 514         }
 515 }
 516
 517 void Designer::selection_changed()
 518 {
 519         const set<Track *> &tracks = selection.get_tracks();
 520         if(tracks.empty())
 521                 lbl_status->set_text(string());
 522         else
 523         {
 524                 float len = 0;
 525                 for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 526                         len += (*i)->get_type().get_total_length();
 527                 lbl_status->set_text(format("%.2fm of track selected\n", len));
 528         }
 529 }
 530
 531 void Designer::manipulation_status(const string &status)
 532 {
 533         lbl_status->set_text(status);
 534 }
 535
 536 void Designer::manipulation_done(bool)
 537 {
 538         mode = SELECT;
 539         selection_changed();
 540 }
 541
 542 void Designer::measure_changed()
 543 {
 544         float pard = measure.get_parallel_distance()*1000;
 545         float perpd = measure.get_perpendicular_distance()*1000;
 546         float d = sqrt(pard*pard+perpd*perpd);
 547         float adiff = measure.get_angle_difference()*180/M_PI;
 548         string info = format("Par %.1fmm - Perp %.1fmm - Total %.1fmm - Angle %.1f°", pard, perpd, d, adiff);
 549         lbl_status->set_text(info);
 550 }
 551
 552 void Designer::measure_done()
 553 {
 554         mode = SELECT;
 555         selection_changed();
 556 }
 557
 558 void Designer::turnout_id_accept(const string &text)
 559 {
 560         Track *track = selection.get_track();
 561         unsigned id = (text.empty() ? 0 : lexical_cast<unsigned>(text));
 562         track->set_turnout_id(id);
 563
 564         update_track_icon(layout_3d->get_track(*track));
 565 }
 566
 567 void Designer::sensor_id_accept(const string &text)
 568 {
 569         const set<Track *> &tracks = selection.get_tracks();
 570         unsigned id = (text.empty() ? 0 : lexical_cast<unsigned>(text));
 571         for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 572         {
 573                 (*i)->set_sensor_id(id);
 574
 575                 update_track_icon(layout_3d->get_track(**i));
 576         }
 577 }
 578
 579 void Designer::route_name_accept(const string &text)
 580 {
 581         if(cur_route)
 582                 cur_route->set_name(text);
 583 }
 584
 585 void Designer::view_all()
 586 {
 587         Point minp;
 588         Point maxp;
 589
 590         const list<Track3D *> &tracks = layout_3d->get_tracks();
 591         for(list<Track3D *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 592         {
 593                 Point tmin;
 594                 Point tmax;
 595                 (*i)->get_bounds(0, tmin, tmax);
 596                 minp.x = min(minp.x, tmin.x);
 597                 minp.y = min(minp.y, tmin.y);
 598                 maxp.x = max(maxp.x, tmax.x);
 599                 maxp.y = max(maxp.y, tmax.y);
 600         }
 601
 602         float t = tan(camera.get_field_of_view()/2)*2;
 603         float size = max((maxp.y-minp.y+0.1), (maxp.x-minp.x+0.1)/camera.get_aspect());
 604         float cam_dist = size/t+size*0.25;
 605         Point center((minp.x+maxp.x)/2, (minp.y+maxp.y)/2);
 606         camera.set_position(GL::Vector3(center.x, center.y-cam_dist*0.5, cam_dist*0.866));
 607         camera.set_look_direction(GL::Vector3(0, 0.5, -0.866));
 608 }
 609
 610 string Designer::tooltip(int x, int y)
 611 {
 612         if(Track3D *t3d = pick_track(x, y))
 613         {
 614                 const Track &track = t3d->get_track();
 615                 const TrackType &ttype = track.get_type();
 616                 string info = format("%d %s", ttype.get_article_number(), ttype.get_description());
 617                 if(mode!=CATALOGUE && abs(track.get_slope())>1e-4)
 618                         info += format(" (slope %.1f%%)", abs(track.get_slope()/ttype.get_total_length()*100));
 619                 if(track.get_turnout_id())
 620                         info += format(" (turnout %d)", track.get_turnout_id());
 621                 else if(track.get_sensor_id())
 622                         info += format(" (sensor %d)", track.get_sensor_id());
 623
 624                 return info;
 625         }
 626
 627         return string();
 628 }
 629
 630 void Designer::show_route(const Route *route)
 631 {
 632         const set<Track *> &ltracks = layout->get_tracks();
 633         for(set<Track *>::iterator i=ltracks.begin(); i!=ltracks.end(); ++i)
 634         {
 635                 Track3D &t3d = layout_3d->get_track(**i);
 636                 if(route && route->has_track(**i))
 637                 {
 638                         t3d.get_path().set_color(GL::Color(0.5, 0.8, 1.0));
 639                         if((*i)->get_type().is_turnout())
 640                         {
 641                                 unsigned tid = (*i)->get_turnout_id();
 642                                 int path = (tid ? route->get_turnout(tid) : -1);
 643                                 if(path>=0)
 644                                         t3d.get_path().set_path(path);
 645                                 else
 646                                         t3d.get_path().set_mask((*i)->get_type().get_paths());
 647                         }
 648                         else
 649                                 t3d.get_path().set_path(0);
 650                 }
 651                 else
 652                         t3d.get_path().set_mask(0);
 653         }
 654 }