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