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