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/tracktype.h"
  29 #include "designer.h"
  30 #include "input.h"
  31 #include "manipulator.h"
  32 #include "measure.h"
  33 #include "selection.h"
  34 #include "toolbar.h"
  35
  36 using namespace std;
  37 using namespace Marklin;
  38 using namespace Msp;
  39
  40 Application::RegApp<Designer> Designer::reg;
  41
  42 Designer::Designer(int argc, char **argv):
  43         window(1280, 960),
  44         base_object(0),
  45         cur_route(0),
  46         mode(SELECT),
  47         manipulator(*this, selection),
  48         measure(*this),
  49         input(0),
  50         camera_ctl(window, camera),
  51         shift(false)
  52 {
  53         window.set_title("Railway Designer");
  54         window.signal_close.connect(sigc::bind(sigc::mem_fun(this, &Designer::exit), 0));
  55         window.signal_key_press.connect(sigc::mem_fun(this, &Designer::key_press));
  56         window.signal_key_release.connect(sigc::mem_fun(this, &Designer::key_release));
  57         window.signal_button_press.connect(sigc::mem_fun(this, &Designer::button_press));
  58         window.signal_pointer_motion.connect(sigc::mem_fun(this, &Designer::pointer_motion));
  59
  60         manipulator.signal_status.connect(sigc::mem_fun(this, &Designer::manipulation_status));
  61         manipulator.signal_done.connect(sigc::mem_fun(this, &Designer::manipulation_done));
  62         measure.signal_changed.connect(sigc::mem_fun(this, &Designer::measure_changed));
  63         measure.signal_done.connect(sigc::mem_fun(this, &Designer::measure_done));
  64
  65         // Setup catalogue and layout
  66         DataFile::load(catalogue, "tracks.dat");
  67
  68         cat_layout_3d = new Layout3D(catalogue.get_layout());
  69
  70         layout = new Layout(catalogue);
  71         layout_3d = new Layout3D(*layout);
  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::DEPTH_TEST);
  87         GL::enable(GL::BLEND);
  88         GL::blend_func(GL::SRC_ALPHA, GL::ONE_MINUS_SRC_ALPHA);
  89         GL::enable(GL_CULL_FACE);
  90
  91         pipeline = new GL::Pipeline(window.get_width(), window.get_height(), false);
  92         pipeline->set_camera(&camera);
  93         pipeline->add_renderable(layout_3d->get_scene());
  94         if(base_object)
  95                 pipeline->add_renderable(*base_object);
  96
  97         light.set_position(0, -0.259, 0.966, 0);
  98         lighting.attach(0, light);
  99
 100         GL::PipelinePass *pass = &pipeline->add_pass(GL::Tag());
 101         pass->lighting = &lighting;
 102
 103         camera.set_up_direction(GL::Vector3(0, 0, 1));
 104         view_all();
 105
 106         // Setup UI
 107         DataFile::load(ui_res, "marklin.res");
 108         root = new GLtk::Root(ui_res, window);
 109
 110         lbl_tooltip = new GLtk::Label(ui_res);
 111         lbl_tooltip->set_style("tooltip");
 112         root->add(*lbl_tooltip);
 113         lbl_tooltip->set_visible(false);
 114
 115         toolbar = new Toolbar(*this);
 116         root->add(*toolbar);
 117         toolbar->set_position(0, window.get_height()-toolbar->get_geometry().h);
 118         toolbar->set_visible(true);
 119
 120         overlay = new Overlay3D(window, camera, ui_res.get_default_font());
 121
 122         const list<Track3D *> &tracks = layout_3d->get_tracks();
 123         for(list<Track3D *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 124                 update_track_icon(**i);
 125 }
 126
 127 Designer::~Designer()
 128 {
 129         delete root;
 130         delete layout;
 131         delete layout_3d;
 132         delete cat_layout_3d;
 133 }
 134
 135 int Designer::main()
 136 {
 137         window.show();
 138
 139         mode = SELECT;
 140
 141         return Application::main();
 142 }
 143
 144 void Designer::save()
 145 {
 146         input = new ::Input(*this, "Save layout", filename);
 147         input->signal_cancel.connect(sigc::mem_fun(this, &Designer::input_dismiss));
 148         input->signal_accept.connect(sigc::mem_fun(this, &Designer::save_accept));
 149         mode = INPUT;
 150 }
 151
 152 void Designer::quit()
 153 {
 154         exit(0);
 155 }
 156
 157 void Designer::edit_route(Route &r)
 158 {
 159         cur_route = &r;
 160 }
 161
 162 void Designer::add_selection_to_route()
 163 {
 164         if(!cur_route)
 165                 return;
 166
 167         try
 168         {
 169                 const set<Track *> &stracks = selection.get_tracks();
 170                 set<const Track *> tracks(stracks.begin(), stracks.end());
 171                 cur_route->add_tracks(tracks);
 172         }
 173         catch(const Exception &e)
 174         {
 175                 IO::print("%s\n", e.what());
 176         }
 177 }
 178
 179 Point Designer::map_pointer_coords(int x, int y)
 180 {
 181         float xf = x*2.0/window.get_width()-1.0;
 182         float yf = y*2.0/window.get_height()-1.0;
 183         GL::Vector4 vec = camera.unproject(GL::Vector4(xf, yf, 0, 0));
 184         const GL::Vector3 &pos = camera.get_position();
 185
 186         return Point(pos.x-vec.x*pos.z/vec.z, pos.y-vec.y*pos.z/vec.z);
 187 }
 188
 189 void Designer::tick()
 190 {
 191         const Msp::Time::TimeStamp t = Msp::Time::now();
 192         float dt = (t-last_tick)/Msp::Time::sec;
 193         last_tick = t;
 194
 195         window.get_display().tick();
 196         camera_ctl.tick(dt);
 197
 198         if(tooltip_timeout && t>tooltip_timeout)
 199         {
 200                 Track3D *t3d = 0;
 201
 202                 if(mode==CATALOGUE)
 203                         t3d = pick_track(pointer_x, pointer_y);
 204                 else
 205                         t3d = pick_track(pointer_x, pointer_y);
 206
 207                 if(t3d)
 208                 {
 209                         const Track &track = t3d->get_track();
 210                         const TrackType &ttype = track.get_type();
 211                         string info = format("%d %s", ttype.get_article_number(), ttype.get_description());
 212                         if(mode!=CATALOGUE && abs(track.get_slope())>1e-4)
 213                                 info += format(" (slope %.1f%%)", abs(track.get_slope()/ttype.get_total_length()*100));
 214                         if(track.get_turnout_id())
 215                                 info += format(" (turnout %d)", track.get_turnout_id());
 216                         else if(track.get_sensor_id())
 217                                 info += format(" (sensor %d)", track.get_sensor_id());
 218
 219                         set_tooltip(pointer_x, pointer_y, info);
 220                 }
 221                 else
 222                         clear_tooltip();
 223
 224                 tooltip_timeout = Msp::Time::TimeStamp();
 225         }
 226
 227         render();
 228
 229         window.swap_buffers();
 230 }
 231
 232 void Designer::key_press(unsigned code, unsigned mod, wchar_t)
 233 {
 234         unsigned key = Msp::Input::key_from_sys(code);
 235
 236         if(mode==INPUT)
 237                 return;
 238
 239         if(key==Msp::Input::KEY_SHIFT_L || key==Msp::Input::KEY_SHIFT_R)
 240                 shift = true;
 241
 242         if(key==Msp::Input::KEY_N)
 243                 mode = CATALOGUE;
 244         else if(key==Msp::Input::KEY_G)
 245         {
 246                 manipulator.start_move();
 247                 mode = MANIPULATE;
 248         }
 249         else if(key==Msp::Input::KEY_R)
 250         {
 251                 manipulator.start_rotate();
 252                 mode = MANIPULATE;
 253         }
 254         else if(key==Msp::Input::KEY_D)
 255         {
 256                 manipulator.duplicate();
 257                 manipulator.start_move();
 258                 mode = MANIPULATE;
 259         }
 260         else if(key==Msp::Input::KEY_W)
 261                 save();
 262         else if(key==Msp::Input::KEY_PLUS)
 263                 selection.select_more();
 264         else if(key==Msp::Input::KEY_L && (mod&1))
 265         {
 266                 const set<Track *> &tracks = layout->get_tracks();
 267                 float len = 0;
 268                 for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 269                         len += (*i)->get_type().get_total_length();
 270                 IO::print("Total length: %.1fm\n", len);
 271         }
 272         else if(key==Msp::Input::KEY_L)
 273                 selection.select_linked();
 274         else if(key==Msp::Input::KEY_M)
 275         {
 276                 measure.start();
 277                 mode = MEASURE;
 278         }
 279         else if(key==Msp::Input::KEY_Z)
 280         {
 281                 manipulator.start_elevate();
 282                 mode = MANIPULATE;
 283         }
 284         else if(key==Msp::Input::KEY_ESC)
 285         {
 286                 if(mode==MANIPULATE)
 287                         manipulator.cancel();
 288                 else if(mode==CATALOGUE)
 289                         mode = SELECT;
 290                 else
 291                         selection.clear();
 292         }
 293         else if(key==Msp::Input::KEY_X)
 294         {
 295                 set<Track *> tracks = selection.get_tracks();
 296                 selection.clear();
 297                 for(set<Track *>::iterator i=tracks.begin(); i!=tracks.end(); ++i)
 298                 {
 299                         layout->remove_track(**i);
 300                         delete *i;
 301                 }
 302         }
 303         else if(key==Msp::Input::KEY_F && (mod&1))
 304         {
 305                 const set<Track *> &tracks = selection.get_tracks();
 306                 const set<Track *> &ltracks = layout->get_tracks();
 307                 for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 308                 {
 309                         (*i)->set_flex(!(*i)->get_flex());
 310                         (*i)->break_links();
 311                         for(set<Track *>::const_iterator j=ltracks.begin(); j!=ltracks.end(); ++j)
 312                                 if(*j!=*i)
 313                                         (*i)->snap_to(**j, true);
 314
 315                         update_track_icon(layout_3d->get_track(**i));
 316                 }
 317         }
 318         else if(key==Msp::Input::KEY_F)
 319                 manipulator.flatten();
 320         else if(key==Msp::Input::KEY_E && (mod&1))
 321                 manipulator.even_slope(true);
 322         else if(key==Msp::Input::KEY_E)
 323                 manipulator.even_slope();
 324         else if(key==Msp::Input::KEY_T)
 325         {
 326                 Track *track = selection.get_track();
 327                 if(selection.size()==1 && track->get_type().get_n_paths()>1)
 328                 {
 329                         input = new ::Input(*this, "Turnout ID", lexical_cast(track->get_turnout_id()));
 330                         input->signal_cancel.connect(sigc::mem_fun(this, &Designer::input_dismiss));
 331                         input->signal_accept.connect(sigc::mem_fun(this, &Designer::turnout_id_accept));
 332                         mode = INPUT;
 333                 }
 334         }
 335         else if(key==Msp::Input::KEY_S)
 336         {
 337                 const set<Track *> &tracks = selection.get_tracks();
 338                 bool ok = false;
 339                 int id = -1;
 340                 for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 341                 {
 342                         if((*i)->get_type().get_n_paths()==1)
 343                                 ok = true;
 344                         if(static_cast<int>((*i)->get_sensor_id())!=id)
 345                         {
 346                                 if(id==-1)
 347                                         id = (*i)->get_sensor_id();
 348                                 else
 349                                         id = -2;
 350                         }
 351                 }
 352                 if(ok)
 353                 {
 354                         input = new ::Input(*this, "Sensor ID", (id>=0 ? lexical_cast(id) : string()));
 355                         input->signal_cancel.connect(sigc::mem_fun(this, &Designer::input_dismiss));
 356                         input->signal_accept.connect(sigc::mem_fun(this, &Designer::sensor_id_accept));
 357                         mode = INPUT;
 358                 }
 359         }
 360         else if(key==Msp::Input::KEY_A)
 361                 add_selection_to_route();
 362 }
 363
 364 void Designer::key_release(unsigned code, unsigned)
 365 {
 366         unsigned key = Msp::Input::key_from_sys(code);
 367
 368         if(mode==INPUT)
 369                 return;
 370
 371         if(key==Msp::Input::KEY_SHIFT_L || key==Msp::Input::KEY_SHIFT_R)
 372                 shift = false;
 373 }
 374
 375 void Designer::button_press(int x, int y, unsigned btn, unsigned)
 376 {
 377         y = window.get_height()-y-1;
 378
 379         Point ground = map_pointer_coords(x, y);
 380
 381         if(mode==CATALOGUE)
 382         {
 383                 if(btn==1)
 384                 {
 385                         Track3D *ctrack = pick_track(x, y);
 386                         if(ctrack)
 387                         {
 388                                 Track *track = ctrack->get_track().copy();
 389                                 track->set_position(ground);
 390                                 layout->add_track(*track);
 391
 392                                 selection.clear();
 393                                 selection.add_track(track);
 394
 395                                 mode = SELECT;
 396                         }
 397                 }
 398                 else
 399                         mode = SELECT;
 400         }
 401         else if(mode==SELECT)
 402         {
 403                 if(btn==1)
 404                 {
 405                         Track3D *track = pick_track(x, y);
 406                         if(track)
 407                         {
 408                                 if(!shift)
 409                                         selection.clear();
 410                                 selection.toggle_track(&track->get_track());
 411                         }
 412                 }
 413         }
 414         else if(mode==MANIPULATE)
 415                 manipulator.button_press(x, y, ground.x, ground.y, btn);
 416         else if(mode==MEASURE)
 417                 measure.button_press(x, y, ground.x, ground.y, btn);
 418 }
 419
 420 void Designer::pointer_motion(int x, int y)
 421 {
 422         y = window.get_height()-y-1;
 423
 424         pointer_x = x;
 425         pointer_y = y;
 426
 427         if(mode==SELECT || mode==CATALOGUE)
 428                 tooltip_timeout = Msp::Time::now()+100*Msp::Time::msec;
 429
 430         clear_tooltip();
 431
 432         if(mode!=INPUT)
 433         {
 434                 Point ground = map_pointer_coords(x, y);
 435                 manipulator.pointer_motion(x, y, ground.x, ground.y);
 436                 measure.pointer_motion(x, y, ground.x, ground.y);
 437         }
 438 }
 439
 440 void Designer::apply_camera()
 441 {
 442         if(mode==CATALOGUE)
 443         {
 444                 GL::matrix_mode(GL::PROJECTION);
 445                 GL::load_identity();
 446                 GL::frustum_centered(0.11046, 0.082843, 0.1, 10);
 447                 GL::matrix_mode(GL::MODELVIEW);
 448                 GL::load_identity();
 449                 GL::translate(0, 0, -1);
 450         }
 451         else
 452                 camera.apply();
 453 }
 454
 455 void Designer::render()
 456 {
 457         GL::clear(GL::COLOR_BUFFER_BIT|GL::DEPTH_BUFFER_BIT);
 458         GL::enable(GL::DEPTH_TEST);
 459         GL::Texture::unbind();
 460
 461         if(mode==CATALOGUE)
 462         {
 463                 apply_camera();
 464                 cat_layout_3d->get_scene().render();
 465         }
 466         else
 467         {
 468                 pipeline->render_all();
 469                 layout_3d->get_endpoint_scene().render();
 470                 GL::enable(GL_CULL_FACE);
 471                 GL::disable(GL::DEPTH_TEST);
 472                 overlay->render(0);
 473                 GL::enable(GL::DEPTH_TEST);
 474                 /*if(cur_route)
 475                 {
 476                         glColor4f(0.5, 0.8, 1.0, 1.0);
 477                         const set<const Track *> &rtracks = cur_route->get_tracks();
 478                         const map<unsigned, int> &turnouts = cur_route->get_turnouts();
 479                         for(set<const Track *>::const_iterator i=rtracks.begin(); i!=rtracks.end(); ++i)
 480                         {
 481                                 unsigned path = 0;
 482                                 if(unsigned tid=(*i)->get_turnout_id())
 483                                 {
 484                                         map<unsigned, int>::const_iterator j = turnouts.find(tid);
 485                                         if(j!=turnouts.end())
 486                                                 path = j->second;
 487                                 }
 488                                 layout_3d->get_track(**i).render_path(path);
 489                         }
 490                 }*/
 491
 492                 manipulator.render();
 493                 if(mode==MEASURE)
 494                         measure.render();
 495         }
 496
 497         GL::matrix_mode(GL::PROJECTION);
 498         GL::load_identity();
 499         GL::ortho_bottomleft(window.get_width(), window.get_height());
 500         GL::matrix_mode(GL::MODELVIEW);
 501         GL::load_identity();
 502
 503         GL::disable(GL::DEPTH_TEST);
 504
 505         root->render();
 506 }
 507
 508 Track3D *Designer::pick_track(int x, int y)
 509 {
 510         Layout3D *l = layout_3d;
 511         if(mode==CATALOGUE)
 512                 l = cat_layout_3d;
 513
 514         float xx = ((float(x)-window.get_width()/2)/window.get_height())*0.82843;
 515         float yy = (float(y)/window.get_height()-0.5)*0.82843;
 516         float size = 4.0/window.get_height()*0.82843;
 517
 518         apply_camera();
 519
 520         return l->pick_track(xx, yy, size);
 521 }
 522
 523 void Designer::update_track_icon(Track3D &track)
 524 {
 525         overlay->clear(track);
 526
 527         if(track.get_track().get_flex())
 528                 overlay->add_graphic(track, "flex");
 529
 530         if(unsigned sid = track.get_track().get_sensor_id())
 531         {
 532                 overlay->add_graphic(track, "sensor");
 533                 overlay->set_label(track, lexical_cast(sid));
 534         }
 535         else if(unsigned tid = track.get_track().get_turnout_id())
 536         {
 537                 overlay->add_graphic(track, "turnout");
 538                 overlay->set_label(track, lexical_cast(tid));
 539         }
 540 }
 541
 542 void Designer::manipulation_status(const string &status)
 543 {
 544         set_tooltip(pointer_x, pointer_y, status);
 545 }
 546
 547 void Designer::manipulation_done(bool)
 548 {
 549         mode = SELECT;
 550 }
 551
 552 void Designer::measure_changed()
 553 {
 554         float pard = measure.get_parallel_distance()*1000;
 555         float perpd = measure.get_perpendicular_distance()*1000;
 556         float d = sqrt(pard*pard+perpd*perpd);
 557         float adiff = measure.get_angle_difference()*180/M_PI;
 558         string info = format("Par %.1fmm - Perp %.1fmm - Total %.1fmm - Angle %.1f°", pard, perpd, d, adiff);
 559         set_tooltip(pointer_x, pointer_y, info);
 560 }
 561
 562 void Designer::measure_done()
 563 {
 564         mode = SELECT;
 565 }
 566
 567 void Designer::set_tooltip(int x, int y, const std::string &text)
 568 {
 569         int fontsize = ui_res.get_default_font().get_default_size();
 570         int h = fontsize+6;
 571         int w = static_cast<int>(ui_res.get_default_font().get_string_width(text)*fontsize)+6;
 572         x = max(min(static_cast<int>(window.get_width())-w, x), 0);
 573         y = max(min(static_cast<int>(window.get_height())-h, y), 0);
 574         lbl_tooltip->set_text(text);
 575         lbl_tooltip->set_geometry(GLtk::Geometry(x, y, w, h));
 576         lbl_tooltip->set_visible(true);
 577 }
 578
 579 void Designer::clear_tooltip()
 580 {
 581         lbl_tooltip->set_visible(false);
 582 }
 583
 584 void Designer::save_accept()
 585 {
 586         layout->save(input->get_text());
 587
 588         input_dismiss();
 589 }
 590
 591 void Designer::turnout_id_accept()
 592 {
 593         Track *track = selection.get_track();
 594         unsigned id = lexical_cast<unsigned>(input->get_text());
 595         track->set_turnout_id(id);
 596
 597         update_track_icon(layout_3d->get_track(*track));
 598
 599         input_dismiss();
 600 }
 601
 602 void Designer::sensor_id_accept()
 603 {
 604         const set<Track *> &tracks = selection.get_tracks();
 605         unsigned id = lexical_cast<unsigned>(input->get_text());
 606         for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 607         {
 608                 (*i)->set_sensor_id(id);
 609
 610                 update_track_icon(layout_3d->get_track(**i));
 611         }
 612
 613         input_dismiss();
 614 }
 615
 616 void Designer::input_dismiss()
 617 {
 618         delete input;
 619         input = 0;
 620         mode = SELECT;
 621 }
 622
 623 void Designer::view_all()
 624 {
 625         Point minp;
 626         Point maxp;
 627
 628         const list<Track3D *> &tracks = layout_3d->get_tracks();
 629         for(list<Track3D *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 630         {
 631                 Point tmin;
 632                 Point tmax;
 633                 (*i)->get_bounds(0, tmin, tmax);
 634                 minp.x = min(minp.x, tmin.x);
 635                 minp.y = min(minp.y, tmin.y);
 636                 maxp.x = max(maxp.x, tmax.x);
 637                 maxp.y = max(maxp.y, tmax.y);
 638         }
 639
 640         float t = tan(camera.get_field_of_view()/2)*2;
 641         float size = max((maxp.y-minp.y+0.1), (maxp.x-minp.x+0.1)/camera.get_aspect());
 642         float cam_dist = size/t+size*0.25;
 643         Point center((minp.x+maxp.x)/2, (minp.y+maxp.y)/2);
 644         camera.set_position(GL::Vector3(center.x, center.y-cam_dist*0.5, cam_dist*0.866));
 645         camera.set_look_direction(GL::Vector3(0, 0.5, -0.866));
 646 }