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