source/designer/designer.cpp

   1 /* $Id$
   2
   3 This file is part of the MSP Märklin suite
   4 Copyright © 2006-2009 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                 const list<Track3D *> &ltracks = layout_3d->get_tracks();
  78                 for(list<Track3D *>::const_iterator i=ltracks.begin(); i!=ltracks.end(); ++i)
  79                         update_track_color(**i);
  80
  81                 if(!layout->get_base().empty())
  82                 {
  83                         base_object = new GL::Object;
  84                         DataFile::load(*base_object, layout->get_base());
  85                 }
  86         }
  87
  88         // Setup OpenGL
  89         GL::enable(GL::DEPTH_TEST);
  90         GL::enable(GL::BLEND);
  91         GL::blend_func(GL::SRC_ALPHA, GL::ONE_MINUS_SRC_ALPHA);
  92         GL::enable(GL_CULL_FACE);
  93
  94         pipeline = new GL::Pipeline(window.get_width(), window.get_height(), false);
  95         pipeline->set_camera(&camera);
  96         pipeline->add_renderable(layout_3d->get_scene());
  97         if(base_object)
  98                 pipeline->add_renderable(*base_object);
  99
 100         light.set_position(0, -0.259, 0.966, 0);
 101         lighting.attach(0, light);
 102
 103         GL::PipelinePass *pass = &pipeline->add_pass(GL::Tag());
 104         pass->lighting = &lighting;
 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
 113         lbl_tooltip = new GLtk::Label(ui_res);
 114         lbl_tooltip->set_style("tooltip");
 115         root->add(*lbl_tooltip);
 116         lbl_tooltip->set_visible(false);
 117
 118         toolbar = new Toolbar(*this);
 119         root->add(*toolbar);
 120         toolbar->set_position(0, window.get_height()-toolbar->get_geometry().h);
 121         toolbar->set_visible(true);
 122 }
 123
 124 Designer::~Designer()
 125 {
 126         delete root;
 127         delete layout;
 128         delete layout_3d;
 129         delete cat_layout_3d;
 130 }
 131
 132 int Designer::main()
 133 {
 134         window.show();
 135
 136         mode = SELECT;
 137
 138         return Application::main();
 139 }
 140
 141 void Designer::save()
 142 {
 143         input = new ::Input(*this, "Save layout", filename);
 144         input->signal_cancel.connect(sigc::mem_fun(this, &Designer::input_dismiss));
 145         input->signal_accept.connect(sigc::mem_fun(this, &Designer::save_accept));
 146         mode = INPUT;
 147 }
 148
 149 void Designer::quit()
 150 {
 151         exit(0);
 152 }
 153
 154 void Designer::edit_route(Route &r)
 155 {
 156         cur_route = &r;
 157 }
 158
 159 void Designer::add_selection_to_route()
 160 {
 161         if(!cur_route)
 162                 return;
 163
 164         try
 165         {
 166                 const set<Track *> &stracks = selection.get_tracks();
 167                 set<const Track *> tracks(stracks.begin(), stracks.end());
 168                 cur_route->add_tracks(tracks);
 169         }
 170         catch(const Exception &e)
 171         {
 172                 IO::print("%s\n", e.what());
 173         }
 174 }
 175
 176 Point Designer::map_pointer_coords(int x, int y)
 177 {
 178         float xf = x*2.0/window.get_width()-1.0;
 179         float yf = y*2.0/window.get_height()-1.0;
 180         GL::Vector4 vec = camera.unproject(GL::Vector4(xf, yf, 0, 0));
 181         const GL::Vector3 &pos = camera.get_position();
 182
 183         return Point(pos.x-vec.x*pos.z/vec.z, pos.y-vec.y*pos.z/vec.z);
 184 }
 185
 186 void Designer::tick()
 187 {
 188         const Msp::Time::TimeStamp t = Msp::Time::now();
 189         float dt = (t-last_tick)/Msp::Time::sec;
 190         last_tick = t;
 191
 192         window.get_display().tick();
 193         camera_ctl.tick(dt);
 194
 195         if(tooltip_timeout && t>tooltip_timeout)
 196         {
 197                 Track3D *t3d = 0;
 198
 199                 if(mode==CATALOGUE)
 200                         t3d = pick_track(pointer_x, pointer_y);
 201                 else
 202                         t3d = pick_track(pointer_x, pointer_y);
 203
 204                 if(t3d)
 205                 {
 206                         const Track &track = t3d->get_track();
 207                         const TrackType &ttype = track.get_type();
 208                         string info = format("%d %s", ttype.get_article_number(), ttype.get_description());
 209                         if(mode!=CATALOGUE && abs(track.get_slope())>1e-4)
 210                                 info += format(" (slope %.1f%%)", abs(track.get_slope()/ttype.get_total_length()*100));
 211                         if(track.get_turnout_id())
 212                                 info += format(" (turnout %d)", track.get_turnout_id());
 213                         else if(track.get_sensor_id())
 214                                 info += format(" (sensor %d)", track.get_sensor_id());
 215
 216                         set_tooltip(pointer_x, pointer_y, info);
 217                 }
 218                 else
 219                         clear_tooltip();
 220
 221                 tooltip_timeout = Msp::Time::TimeStamp();
 222         }
 223
 224         render();
 225
 226         window.swap_buffers();
 227 }
 228
 229 void Designer::key_press(unsigned code, unsigned mod, wchar_t)
 230 {
 231         unsigned key = Msp::Input::key_from_sys(code);
 232
 233         if(mode==INPUT)
 234                 return;
 235
 236         if(key==Msp::Input::KEY_SHIFT_L || key==Msp::Input::KEY_SHIFT_R)
 237                 shift = true;
 238
 239         if(key==Msp::Input::KEY_N)
 240                 mode = CATALOGUE;
 241         else if(key==Msp::Input::KEY_G)
 242         {
 243                 manipulator.start_move();
 244                 mode = MANIPULATE;
 245         }
 246         else if(key==Msp::Input::KEY_R)
 247         {
 248                 manipulator.start_rotate();
 249                 mode = MANIPULATE;
 250         }
 251         else if(key==Msp::Input::KEY_D)
 252         {
 253                 manipulator.duplicate();
 254                 manipulator.start_move();
 255                 mode = MANIPULATE;
 256         }
 257         else if(key==Msp::Input::KEY_W)
 258                 save();
 259         else if(key==Msp::Input::KEY_PLUS)
 260                 selection.select_more();
 261         else if(key==Msp::Input::KEY_L && (mod&1))
 262         {
 263                 const set<Track *> &tracks = layout->get_tracks();
 264                 float len = 0;
 265                 for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 266                         len += (*i)->get_type().get_total_length();
 267                 IO::print("Total length: %.1fm\n", len);
 268         }
 269         else if(key==Msp::Input::KEY_L)
 270                 selection.select_linked();
 271         else if(key==Msp::Input::KEY_M)
 272         {
 273                 measure.start();
 274                 mode = MEASURE;
 275         }
 276         else if(key==Msp::Input::KEY_Z)
 277         {
 278                 manipulator.start_elevate();
 279                 mode = MANIPULATE;
 280         }
 281         else if(key==Msp::Input::KEY_ESC)
 282         {
 283                 if(mode==MANIPULATE)
 284                         manipulator.cancel();
 285                 else if(mode==CATALOGUE)
 286                         mode = SELECT;
 287                 else
 288                         selection.clear();
 289         }
 290         else if(key==Msp::Input::KEY_X)
 291         {
 292                 set<Track *> tracks = selection.get_tracks();
 293                 selection.clear();
 294                 for(set<Track *>::iterator i=tracks.begin(); i!=tracks.end(); ++i)
 295                 {
 296                         layout->remove_track(**i);
 297                         delete *i;
 298                 }
 299         }
 300         else if(key==Msp::Input::KEY_F && (mod&1))
 301         {
 302                 const set<Track *> &tracks = selection.get_tracks();
 303                 const set<Track *> &ltracks = layout->get_tracks();
 304                 for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 305                 {
 306                         (*i)->set_flex(!(*i)->get_flex());
 307                         (*i)->break_links();
 308                         for(set<Track *>::const_iterator j=ltracks.begin(); j!=ltracks.end(); ++j)
 309                                 if(*j!=*i)
 310                                         (*i)->snap_to(**j, true);
 311
 312                         update_track_color(layout_3d->get_track(**i));
 313                 }
 314         }
 315         else if(key==Msp::Input::KEY_F)
 316                 manipulator.flatten();
 317         else if(key==Msp::Input::KEY_E && (mod&1))
 318                 manipulator.even_slope(true);
 319         else if(key==Msp::Input::KEY_E)
 320                 manipulator.even_slope();
 321         else if(key==Msp::Input::KEY_T)
 322         {
 323                 Track *track = selection.get_track();
 324                 if(selection.size()==1 && track->get_type().get_n_paths()>1)
 325                 {
 326                         input = new ::Input(*this, "Turnout ID", lexical_cast(track->get_turnout_id()));
 327                         input->signal_cancel.connect(sigc::mem_fun(this, &Designer::input_dismiss));
 328                         input->signal_accept.connect(sigc::mem_fun(this, &Designer::turnout_id_accept));
 329                         mode = INPUT;
 330                 }
 331         }
 332         else if(key==Msp::Input::KEY_S)
 333         {
 334                 const set<Track *> &tracks = selection.get_tracks();
 335                 bool ok = false;
 336                 int id = -1;
 337                 for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 338                 {
 339                         if((*i)->get_type().get_n_paths()==1)
 340                                 ok = true;
 341                         if(static_cast<int>((*i)->get_sensor_id())!=id)
 342                         {
 343                                 if(id==-1)
 344                                         id = (*i)->get_sensor_id();
 345                                 else
 346                                         id = -2;
 347                         }
 348                 }
 349                 if(ok)
 350                 {
 351                         input = new ::Input(*this, "Sensor ID", (id>=0 ? lexical_cast(id) : string()));
 352                         input->signal_cancel.connect(sigc::mem_fun(this, &Designer::input_dismiss));
 353                         input->signal_accept.connect(sigc::mem_fun(this, &Designer::sensor_id_accept));
 354                         mode = INPUT;
 355                 }
 356         }
 357         else if(key==Msp::Input::KEY_A)
 358                 add_selection_to_route();
 359 }
 360
 361 void Designer::key_release(unsigned code, unsigned)
 362 {
 363         unsigned key = Msp::Input::key_from_sys(code);
 364
 365         if(mode==INPUT)
 366                 return;
 367
 368         if(key==Msp::Input::KEY_SHIFT_L || key==Msp::Input::KEY_SHIFT_R)
 369                 shift = false;
 370 }
 371
 372 void Designer::button_press(int x, int y, unsigned btn, unsigned)
 373 {
 374         y = window.get_height()-y-1;
 375
 376         Point ground = map_pointer_coords(x, y);
 377
 378         if(mode==CATALOGUE)
 379         {
 380                 if(btn==1)
 381                 {
 382                         Track3D *ctrack = pick_track(x, y);
 383                         if(ctrack)
 384                         {
 385                                 Track *track = ctrack->get_track().copy();
 386                                 track->set_position(ground);
 387                                 layout->add_track(*track);
 388
 389                                 selection.clear();
 390                                 selection.add_track(track);
 391
 392                                 mode = SELECT;
 393                         }
 394                 }
 395                 else
 396                         mode = SELECT;
 397         }
 398         else if(mode==SELECT)
 399         {
 400                 if(btn==1)
 401                 {
 402                         Track3D *track = pick_track(x, y);
 403                         if(track)
 404                         {
 405                                 if(!shift)
 406                                         selection.clear();
 407                                 selection.toggle_track(&track->get_track());
 408                         }
 409                 }
 410         }
 411         else if(mode==MANIPULATE)
 412                 manipulator.button_press(x, y, ground.x, ground.y, btn);
 413         else if(mode==MEASURE)
 414                 measure.button_press(x, y, ground.x, ground.y, btn);
 415 }
 416
 417 void Designer::pointer_motion(int x, int y)
 418 {
 419         y = window.get_height()-y-1;
 420
 421         pointer_x = x;
 422         pointer_y = y;
 423
 424         if(mode==SELECT || mode==CATALOGUE)
 425                 tooltip_timeout = Msp::Time::now()+100*Msp::Time::msec;
 426
 427         clear_tooltip();
 428
 429         if(mode!=INPUT)
 430         {
 431                 Point ground = map_pointer_coords(x, y);
 432                 manipulator.pointer_motion(x, y, ground.x, ground.y);
 433                 measure.pointer_motion(x, y, ground.x, ground.y);
 434         }
 435 }
 436
 437 void Designer::apply_camera()
 438 {
 439         if(mode==CATALOGUE)
 440         {
 441                 GL::matrix_mode(GL::PROJECTION);
 442                 GL::load_identity();
 443                 GL::frustum_centered(0.11046, 0.082843, 0.1, 10);
 444                 GL::matrix_mode(GL::MODELVIEW);
 445                 GL::load_identity();
 446                 GL::translate(0, 0, -1);
 447         }
 448         else
 449                 camera.apply();
 450 }
 451
 452 void Designer::render()
 453 {
 454         GL::clear(GL::COLOR_BUFFER_BIT|GL::DEPTH_BUFFER_BIT);
 455         GL::enable(GL::DEPTH_TEST);
 456         GL::Texture::unbind();
 457
 458         if(mode==CATALOGUE)
 459         {
 460                 apply_camera();
 461                 cat_layout_3d->get_scene().render();
 462         }
 463         else
 464         {
 465                 pipeline->render_all();
 466                 layout_3d->get_endpoint_scene().render();
 467                 GL::enable(GL_CULL_FACE);
 468                 /*if(cur_route)
 469                 {
 470                         glColor4f(0.5, 0.8, 1.0, 1.0);
 471                         const set<const Track *> &rtracks = cur_route->get_tracks();
 472                         const map<unsigned, int> &turnouts = cur_route->get_turnouts();
 473                         for(set<const Track *>::const_iterator i=rtracks.begin(); i!=rtracks.end(); ++i)
 474                         {
 475                                 unsigned path = 0;
 476                                 if(unsigned tid=(*i)->get_turnout_id())
 477                                 {
 478                                         map<unsigned, int>::const_iterator j = turnouts.find(tid);
 479                                         if(j!=turnouts.end())
 480                                                 path = j->second;
 481                                 }
 482                                 layout_3d->get_track(**i).render_path(path);
 483                         }
 484                 }*/
 485
 486                 manipulator.render();
 487                 if(mode==MEASURE)
 488                         measure.render();
 489         }
 490
 491         GL::matrix_mode(GL::PROJECTION);
 492         GL::load_identity();
 493         GL::ortho_bottomleft(window.get_width(), window.get_height());
 494         GL::matrix_mode(GL::MODELVIEW);
 495         GL::load_identity();
 496
 497         GL::disable(GL::DEPTH_TEST);
 498
 499         root->render();
 500 }
 501
 502 Track3D *Designer::pick_track(int x, int y)
 503 {
 504         Layout3D *l = layout_3d;
 505         if(mode==CATALOGUE)
 506                 l = cat_layout_3d;
 507
 508         float xx = ((float(x)-window.get_width()/2)/window.get_height())*0.82843;
 509         float yy = (float(y)/window.get_height()-0.5)*0.82843;
 510         float size = 4.0/window.get_height()*0.82843;
 511
 512         apply_camera();
 513
 514         return l->pick_track(xx, yy, size);
 515 }
 516
 517 void Designer::update_track_color(Track3D &track)
 518 {
 519         if(track.get_track().get_sensor_id())
 520         {
 521                 if(track.get_track().get_flex())
 522                         track.set_color(GL::Color(1, 0.6, 1));
 523                 else
 524                         track.set_color(GL::Color(0.7, 0.7, 1));
 525         }
 526         else if(track.get_track().get_turnout_id())
 527                 track.set_color(GL::Color(0.8, 1, 0.8));
 528         else if(track.get_track().get_flex())
 529                 track.set_color(GL::Color(1, 0.8, 0.8));
 530         else
 531                 track.set_color(GL::Color(1, 1, 1));
 532 }
 533
 534 void Designer::manipulation_status(const string &status)
 535 {
 536         set_tooltip(pointer_x, pointer_y, status);
 537 }
 538
 539 void Designer::manipulation_done(bool)
 540 {
 541         mode = SELECT;
 542 }
 543
 544 void Designer::measure_changed()
 545 {
 546         float pard = measure.get_parallel_distance()*1000;
 547         float perpd = measure.get_perpendicular_distance()*1000;
 548         float d = sqrt(pard*pard+perpd*perpd);
 549         float adiff = measure.get_angle_difference()*180/M_PI;
 550         string info = format("Par %.1fmm - Perp %.1fmm - Total %.1fmm - Angle %.1f°", pard, perpd, d, adiff);
 551         set_tooltip(pointer_x, pointer_y, info);
 552 }
 553
 554 void Designer::measure_done()
 555 {
 556         mode = SELECT;
 557 }
 558
 559 void Designer::set_tooltip(int x, int y, const std::string &text)
 560 {
 561         int fontsize = ui_res.get_default_font().get_default_size();
 562         int h = fontsize+6;
 563         int w = static_cast<int>(ui_res.get_default_font().get_string_width(text)*fontsize)+6;
 564         x = max(min(static_cast<int>(window.get_width())-w, x), 0);
 565         y = max(min(static_cast<int>(window.get_height())-h, y), 0);
 566         lbl_tooltip->set_text(text);
 567         lbl_tooltip->set_geometry(GLtk::Geometry(x, y, w, h));
 568         lbl_tooltip->set_visible(true);
 569 }
 570
 571 void Designer::clear_tooltip()
 572 {
 573         lbl_tooltip->set_visible(false);
 574 }
 575
 576 void Designer::save_accept()
 577 {
 578         layout->save(input->get_text());
 579
 580         input_dismiss();
 581 }
 582
 583 void Designer::turnout_id_accept()
 584 {
 585         Track *track = selection.get_track();
 586         unsigned id = lexical_cast<unsigned>(input->get_text());
 587         track->set_turnout_id(id);
 588
 589         update_track_color(layout_3d->get_track(*track));
 590
 591         input_dismiss();
 592 }
 593
 594 void Designer::sensor_id_accept()
 595 {
 596         const set<Track *> &tracks = selection.get_tracks();
 597         unsigned id = lexical_cast<unsigned>(input->get_text());
 598         for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 599         {
 600                 (*i)->set_sensor_id(id);
 601
 602                 update_track_color(layout_3d->get_track(**i));
 603         }
 604
 605         input_dismiss();
 606 }
 607
 608 void Designer::input_dismiss()
 609 {
 610         delete input;
 611         input = 0;
 612         mode = SELECT;
 613 }
 614
 615 void Designer::view_all()
 616 {
 617         Point minp;
 618         Point maxp;
 619
 620         const list<Track3D *> &tracks = layout_3d->get_tracks();
 621         for(list<Track3D *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 622         {
 623                 Point tmin;
 624                 Point tmax;
 625                 (*i)->get_bounds(0, tmin, tmax);
 626                 minp.x = min(minp.x, tmin.x);
 627                 minp.y = min(minp.y, tmin.y);
 628                 maxp.x = max(maxp.x, tmax.x);
 629                 maxp.y = max(maxp.y, tmax.y);
 630         }
 631
 632         float t = tan(camera.get_field_of_view()/2)*2;
 633         float size = max((maxp.y-minp.y+0.1), (maxp.x-minp.x+0.1)/camera.get_aspect());
 634         float cam_dist = size/t+size*0.25;
 635         Point center((minp.x+maxp.x)/2, (minp.y+maxp.y)/2);
 636         camera.set_position(GL::Vector3(center.x, center.y-cam_dist*0.5, cam_dist*0.866));
 637         camera.set_look_direction(GL::Vector3(0, 0.5, -0.866));
 638 }