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 overlay;
 130         delete root;
 131         delete pipeline;
 132         delete base_object;
 133         delete layout_3d;
 134         delete layout;
 135         delete cat_layout_3d;
 136 }
 137
 138 int Designer::main()
 139 {
 140         window.show();
 141
 142         mode = SELECT;
 143
 144         return Application::main();
 145 }
 146
 147 void Designer::save()
 148 {
 149         input = new ::Input(*this, "Save layout", filename);
 150         input->signal_cancel.connect(sigc::mem_fun(this, &Designer::input_dismiss));
 151         input->signal_accept.connect(sigc::mem_fun(this, &Designer::save_accept));
 152         mode = INPUT;
 153 }
 154
 155 void Designer::quit()
 156 {
 157         exit(0);
 158 }
 159
 160 void Designer::edit_route(Route &r)
 161 {
 162         cur_route = &r;
 163 }
 164
 165 void Designer::add_selection_to_route()
 166 {
 167         if(!cur_route)
 168                 return;
 169
 170         try
 171         {
 172                 const set<Track *> &stracks = selection.get_tracks();
 173                 set<const Track *> tracks(stracks.begin(), stracks.end());
 174                 cur_route->add_tracks(tracks);
 175         }
 176         catch(const Exception &e)
 177         {
 178                 IO::print("%s\n", e.what());
 179         }
 180 }
 181
 182 Point Designer::map_pointer_coords(int x, int y)
 183 {
 184         float xf = x*2.0/window.get_width()-1.0;
 185         float yf = y*2.0/window.get_height()-1.0;
 186         GL::Vector4 vec = camera.unproject(GL::Vector4(xf, yf, 0, 0));
 187         const GL::Vector3 &pos = camera.get_position();
 188
 189         return Point(pos.x-vec.x*pos.z/vec.z, pos.y-vec.y*pos.z/vec.z);
 190 }
 191
 192 void Designer::tick()
 193 {
 194         const Msp::Time::TimeStamp t = Msp::Time::now();
 195         float dt = (t-last_tick)/Msp::Time::sec;
 196         last_tick = t;
 197
 198         window.get_display().tick();
 199         camera_ctl.tick(dt);
 200
 201         if(tooltip_timeout && t>tooltip_timeout)
 202         {
 203                 Track3D *t3d = 0;
 204
 205                 if(mode==CATALOGUE)
 206                         t3d = pick_track(pointer_x, pointer_y);
 207                 else
 208                         t3d = pick_track(pointer_x, pointer_y);
 209
 210                 if(t3d)
 211                 {
 212                         const Track &track = t3d->get_track();
 213                         const TrackType &ttype = track.get_type();
 214                         string info = format("%d %s", ttype.get_article_number(), ttype.get_description());
 215                         if(mode!=CATALOGUE && abs(track.get_slope())>1e-4)
 216                                 info += format(" (slope %.1f%%)", abs(track.get_slope()/ttype.get_total_length()*100));
 217                         if(track.get_turnout_id())
 218                                 info += format(" (turnout %d)", track.get_turnout_id());
 219                         else if(track.get_sensor_id())
 220                                 info += format(" (sensor %d)", track.get_sensor_id());
 221
 222                         set_tooltip(pointer_x, pointer_y, info);
 223                 }
 224                 else
 225                         clear_tooltip();
 226
 227                 tooltip_timeout = Msp::Time::TimeStamp();
 228         }
 229
 230         render();
 231
 232         window.swap_buffers();
 233 }
 234
 235 void Designer::key_press(unsigned code, unsigned mod, wchar_t)
 236 {
 237         unsigned key = Msp::Input::key_from_sys(code);
 238
 239         if(mode==INPUT)
 240                 return;
 241
 242         if(key==Msp::Input::KEY_SHIFT_L || key==Msp::Input::KEY_SHIFT_R)
 243                 shift = true;
 244
 245         if(key==Msp::Input::KEY_N)
 246                 mode = CATALOGUE;
 247         else if(key==Msp::Input::KEY_G)
 248         {
 249                 manipulator.start_move();
 250                 mode = MANIPULATE;
 251         }
 252         else if(key==Msp::Input::KEY_R)
 253         {
 254                 manipulator.start_rotate();
 255                 mode = MANIPULATE;
 256         }
 257         else if(key==Msp::Input::KEY_D)
 258         {
 259                 manipulator.duplicate();
 260                 manipulator.start_move();
 261                 mode = MANIPULATE;
 262         }
 263         else if(key==Msp::Input::KEY_W)
 264                 save();
 265         else if(key==Msp::Input::KEY_PLUS)
 266                 selection.select_more();
 267         else if(key==Msp::Input::KEY_L && (mod&1))
 268         {
 269                 const set<Track *> &tracks = layout->get_tracks();
 270                 float len = 0;
 271                 for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 272                         len += (*i)->get_type().get_total_length();
 273                 IO::print("Total length: %.1fm\n", len);
 274         }
 275         else if(key==Msp::Input::KEY_L)
 276                 selection.select_linked();
 277         else if(key==Msp::Input::KEY_M)
 278         {
 279                 measure.start();
 280                 mode = MEASURE;
 281         }
 282         else if(key==Msp::Input::KEY_Z)
 283         {
 284                 manipulator.start_elevate();
 285                 mode = MANIPULATE;
 286         }
 287         else if(key==Msp::Input::KEY_ESC)
 288         {
 289                 if(mode==MANIPULATE)
 290                         manipulator.cancel();
 291                 else if(mode==CATALOGUE)
 292                         mode = SELECT;
 293                 else
 294                         selection.clear();
 295         }
 296         else if(key==Msp::Input::KEY_X)
 297         {
 298                 set<Track *> tracks = selection.get_tracks();
 299                 selection.clear();
 300                 for(set<Track *>::iterator i=tracks.begin(); i!=tracks.end(); ++i)
 301                 {
 302                         overlay->clear(layout_3d->get_track(**i));
 303                         layout->remove_track(**i);
 304                         delete *i;
 305                 }
 306         }
 307         else if(key==Msp::Input::KEY_F && (mod&1))
 308         {
 309                 const set<Track *> &tracks = selection.get_tracks();
 310                 const set<Track *> &ltracks = layout->get_tracks();
 311                 for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 312                 {
 313                         (*i)->set_flex(!(*i)->get_flex());
 314                         (*i)->break_links();
 315                         for(set<Track *>::const_iterator j=ltracks.begin(); j!=ltracks.end(); ++j)
 316                                 if(*j!=*i)
 317                                         (*i)->snap_to(**j, true);
 318
 319                         update_track_icon(layout_3d->get_track(**i));
 320                 }
 321         }
 322         else if(key==Msp::Input::KEY_F)
 323                 manipulator.flatten();
 324         else if(key==Msp::Input::KEY_E && (mod&1))
 325                 manipulator.even_slope(true);
 326         else if(key==Msp::Input::KEY_E)
 327                 manipulator.even_slope();
 328         else if(key==Msp::Input::KEY_T)
 329         {
 330                 Track *track = selection.get_track();
 331                 if(selection.size()==1 && track->get_type().get_n_paths()>1)
 332                 {
 333                         input = new ::Input(*this, "Turnout ID", lexical_cast(track->get_turnout_id()));
 334                         input->signal_cancel.connect(sigc::mem_fun(this, &Designer::input_dismiss));
 335                         input->signal_accept.connect(sigc::mem_fun(this, &Designer::turnout_id_accept));
 336                         mode = INPUT;
 337                 }
 338         }
 339         else if(key==Msp::Input::KEY_S)
 340         {
 341                 const set<Track *> &tracks = selection.get_tracks();
 342                 bool ok = false;
 343                 int id = -1;
 344                 for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 345                 {
 346                         if((*i)->get_type().get_n_paths()==1)
 347                                 ok = true;
 348                         if(static_cast<int>((*i)->get_sensor_id())!=id)
 349                         {
 350                                 if(id==-1)
 351                                         id = (*i)->get_sensor_id();
 352                                 else
 353                                         id = -2;
 354                         }
 355                 }
 356                 if(ok)
 357                 {
 358                         input = new ::Input(*this, "Sensor ID", (id>=0 ? lexical_cast(id) : string()));
 359                         input->signal_cancel.connect(sigc::mem_fun(this, &Designer::input_dismiss));
 360                         input->signal_accept.connect(sigc::mem_fun(this, &Designer::sensor_id_accept));
 361                         mode = INPUT;
 362                 }
 363         }
 364         else if(key==Msp::Input::KEY_A)
 365                 add_selection_to_route();
 366 }
 367
 368 void Designer::key_release(unsigned code, unsigned)
 369 {
 370         unsigned key = Msp::Input::key_from_sys(code);
 371
 372         if(mode==INPUT)
 373                 return;
 374
 375         if(key==Msp::Input::KEY_SHIFT_L || key==Msp::Input::KEY_SHIFT_R)
 376                 shift = false;
 377 }
 378
 379 void Designer::button_press(int x, int y, unsigned btn, unsigned)
 380 {
 381         y = window.get_height()-y-1;
 382
 383         Point ground = map_pointer_coords(x, y);
 384
 385         if(mode==CATALOGUE)
 386         {
 387                 if(btn==1)
 388                 {
 389                         Track3D *ctrack = pick_track(x, y);
 390                         if(ctrack)
 391                         {
 392                                 Track *track = ctrack->get_track().copy();
 393                                 track->set_position(ground);
 394                                 layout->add_track(*track);
 395
 396                                 selection.clear();
 397                                 selection.add_track(track);
 398
 399                                 mode = SELECT;
 400                         }
 401                 }
 402                 else
 403                         mode = SELECT;
 404         }
 405         else if(mode==SELECT)
 406         {
 407                 if(btn==1)
 408                 {
 409                         Track3D *track = pick_track(x, y);
 410                         if(track)
 411                         {
 412                                 if(!shift)
 413                                         selection.clear();
 414                                 selection.toggle_track(&track->get_track());
 415                         }
 416                 }
 417         }
 418         else if(mode==MANIPULATE)
 419                 manipulator.button_press(x, y, ground.x, ground.y, btn);
 420         else if(mode==MEASURE)
 421                 measure.button_press(x, y, ground.x, ground.y, btn);
 422 }
 423
 424 void Designer::pointer_motion(int x, int y)
 425 {
 426         y = window.get_height()-y-1;
 427
 428         pointer_x = x;
 429         pointer_y = y;
 430
 431         if(mode==SELECT || mode==CATALOGUE)
 432                 tooltip_timeout = Msp::Time::now()+100*Msp::Time::msec;
 433
 434         clear_tooltip();
 435
 436         if(mode!=INPUT)
 437         {
 438                 Point ground = map_pointer_coords(x, y);
 439                 manipulator.pointer_motion(x, y, ground.x, ground.y);
 440                 measure.pointer_motion(x, y, ground.x, ground.y);
 441         }
 442 }
 443
 444 void Designer::apply_camera()
 445 {
 446         if(mode==CATALOGUE)
 447         {
 448                 GL::matrix_mode(GL::PROJECTION);
 449                 GL::load_identity();
 450                 GL::frustum_centered(0.11046, 0.082843, 0.1, 10);
 451                 GL::matrix_mode(GL::MODELVIEW);
 452                 GL::load_identity();
 453                 GL::translate(0, 0, -1);
 454         }
 455         else
 456                 camera.apply();
 457 }
 458
 459 void Designer::render()
 460 {
 461         GL::clear(GL::COLOR_BUFFER_BIT|GL::DEPTH_BUFFER_BIT);
 462         GL::enable(GL::DEPTH_TEST);
 463         GL::Texture::unbind();
 464
 465         if(mode==CATALOGUE)
 466         {
 467                 apply_camera();
 468                 cat_layout_3d->get_scene().render();
 469         }
 470         else
 471         {
 472                 pipeline->render_all();
 473                 layout_3d->get_endpoint_scene().render();
 474                 GL::enable(GL_CULL_FACE);
 475                 GL::disable(GL::DEPTH_TEST);
 476                 overlay->render(0);
 477                 GL::enable(GL::DEPTH_TEST);
 478                 /*if(cur_route)
 479                 {
 480                         glColor4f(0.5, 0.8, 1.0, 1.0);
 481                         const set<const Track *> &rtracks = cur_route->get_tracks();
 482                         const map<unsigned, int> &turnouts = cur_route->get_turnouts();
 483                         for(set<const Track *>::const_iterator i=rtracks.begin(); i!=rtracks.end(); ++i)
 484                         {
 485                                 unsigned path = 0;
 486                                 if(unsigned tid=(*i)->get_turnout_id())
 487                                 {
 488                                         map<unsigned, int>::const_iterator j = turnouts.find(tid);
 489                                         if(j!=turnouts.end())
 490                                                 path = j->second;
 491                                 }
 492                                 layout_3d->get_track(**i).render_path(path);
 493                         }
 494                 }*/
 495
 496                 manipulator.render();
 497                 if(mode==MEASURE)
 498                         measure.render();
 499         }
 500
 501         GL::matrix_mode(GL::PROJECTION);
 502         GL::load_identity();
 503         GL::ortho_bottomleft(window.get_width(), window.get_height());
 504         GL::matrix_mode(GL::MODELVIEW);
 505         GL::load_identity();
 506
 507         GL::disable(GL::DEPTH_TEST);
 508
 509         root->render();
 510 }
 511
 512 Track3D *Designer::pick_track(int x, int y)
 513 {
 514         Layout3D *l = layout_3d;
 515         if(mode==CATALOGUE)
 516                 l = cat_layout_3d;
 517
 518         float xx = ((float(x)-window.get_width()/2)/window.get_height())*0.82843;
 519         float yy = (float(y)/window.get_height()-0.5)*0.82843;
 520         float size = 4.0/window.get_height()*0.82843;
 521
 522         apply_camera();
 523
 524         return l->pick_track(xx, yy, size);
 525 }
 526
 527 void Designer::update_track_icon(Track3D &track)
 528 {
 529         overlay->clear(track);
 530
 531         if(track.get_track().get_flex())
 532                 overlay->add_graphic(track, "flex");
 533
 534         if(unsigned sid = track.get_track().get_sensor_id())
 535         {
 536                 overlay->add_graphic(track, "sensor");
 537                 overlay->set_label(track, lexical_cast(sid));
 538         }
 539         else if(unsigned tid = track.get_track().get_turnout_id())
 540         {
 541                 overlay->add_graphic(track, "turnout");
 542                 overlay->set_label(track, lexical_cast(tid));
 543         }
 544 }
 545
 546 void Designer::manipulation_status(const string &status)
 547 {
 548         set_tooltip(pointer_x, pointer_y, status);
 549 }
 550
 551 void Designer::manipulation_done(bool)
 552 {
 553         mode = SELECT;
 554 }
 555
 556 void Designer::measure_changed()
 557 {
 558         float pard = measure.get_parallel_distance()*1000;
 559         float perpd = measure.get_perpendicular_distance()*1000;
 560         float d = sqrt(pard*pard+perpd*perpd);
 561         float adiff = measure.get_angle_difference()*180/M_PI;
 562         string info = format("Par %.1fmm - Perp %.1fmm - Total %.1fmm - Angle %.1f°", pard, perpd, d, adiff);
 563         set_tooltip(pointer_x, pointer_y, info);
 564 }
 565
 566 void Designer::measure_done()
 567 {
 568         mode = SELECT;
 569 }
 570
 571 void Designer::set_tooltip(int x, int y, const std::string &text)
 572 {
 573         int fontsize = ui_res.get_default_font().get_default_size();
 574         int h = fontsize+6;
 575         int w = static_cast<int>(ui_res.get_default_font().get_string_width(text)*fontsize)+6;
 576         x = max(min(static_cast<int>(window.get_width())-w, x), 0);
 577         y = max(min(static_cast<int>(window.get_height())-h, y), 0);
 578         lbl_tooltip->set_text(text);
 579         lbl_tooltip->set_geometry(GLtk::Geometry(x, y, w, h));
 580         lbl_tooltip->set_visible(true);
 581 }
 582
 583 void Designer::clear_tooltip()
 584 {
 585         lbl_tooltip->set_visible(false);
 586 }
 587
 588 void Designer::save_accept()
 589 {
 590         layout->save(input->get_text());
 591
 592         input_dismiss();
 593 }
 594
 595 void Designer::turnout_id_accept()
 596 {
 597         Track *track = selection.get_track();
 598         unsigned id = lexical_cast<unsigned>(input->get_text());
 599         track->set_turnout_id(id);
 600
 601         update_track_icon(layout_3d->get_track(*track));
 602
 603         input_dismiss();
 604 }
 605
 606 void Designer::sensor_id_accept()
 607 {
 608         const set<Track *> &tracks = selection.get_tracks();
 609         unsigned id = lexical_cast<unsigned>(input->get_text());
 610         for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 611         {
 612                 (*i)->set_sensor_id(id);
 613
 614                 update_track_icon(layout_3d->get_track(**i));
 615         }
 616
 617         input_dismiss();
 618 }
 619
 620 void Designer::input_dismiss()
 621 {
 622         delete input;
 623         input = 0;
 624         mode = SELECT;
 625 }
 626
 627 void Designer::view_all()
 628 {
 629         Point minp;
 630         Point maxp;
 631
 632         const list<Track3D *> &tracks = layout_3d->get_tracks();
 633         for(list<Track3D *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 634         {
 635                 Point tmin;
 636                 Point tmax;
 637                 (*i)->get_bounds(0, tmin, tmax);
 638                 minp.x = min(minp.x, tmin.x);
 639                 minp.y = min(minp.y, tmin.y);
 640                 maxp.x = max(maxp.x, tmax.x);
 641                 maxp.y = max(maxp.y, tmax.y);
 642         }
 643
 644         float t = tan(camera.get_field_of_view()/2)*2;
 645         float size = max((maxp.y-minp.y+0.1), (maxp.x-minp.x+0.1)/camera.get_aspect());
 646         float cam_dist = size/t+size*0.25;
 647         Point center((minp.x+maxp.x)/2, (minp.y+maxp.y)/2);
 648         camera.set_position(GL::Vector3(center.x, center.y-cam_dist*0.5, cam_dist*0.866));
 649         camera.set_look_direction(GL::Vector3(0, 0.5, -0.866));
 650 }