source/designer/designer.cpp

   1 #include <signal.h>
   2 #include <algorithm>
   3 #include <cmath>
   4 #include <msp/fs/utils.h>
   5 #include <msp/gl/blend.h>
   6 #include <msp/gl/framebuffer.h>
   7 #include <msp/gl/matrix.h>
   8 #include <msp/gl/misc.h>
   9 #include <msp/gl/tests.h>
  10 #include <msp/gl/texture2d.h>
  11 #include <msp/input/keys.h>
  12 #include <msp/io/print.h>
  13 #include <msp/stringcodec/codec.h>
  14 #include <msp/stringcodec/utf8.h>
  15 #include <msp/strings/lexicalcast.h>
  16 #include <msp/strings/utils.h>
  17 #include <msp/time/units.h>
  18 #include <msp/time/utils.h>
  19 #include "libr2c2/route.h"
  20 #include "libr2c2/tracktype.h"
  21 #include "libr2c2/zone.h"
  22 #include "3d/path.h"
  23 #include "designer.h"
  24 #include "elevatetool.h"
  25 #include "extendtool.h"
  26 #include "input.h"
  27 #include "layoutbar.h"
  28 #include "manipulator.h"
  29 #include "measure.h"
  30 #include "movetool.h"
  31 #include "rotatetool.h"
  32 #include "routebar.h"
  33 #include "selection.h"
  34 #include "slopetool.h"
  35 #include "svgexporter.h"
  36 #include "trackbar.h"
  37 #include "trackproperties.h"
  38 #include "zonebar.h"
  39 #include "zoneproperties.h"
  40
  41 using namespace std;
  42 using namespace R2C2;
  43 using namespace Msp;
  44
  45 Designer::Designer(int argc, char **argv):
  46         window(1280, 960),
  47         keyboard(window),
  48         mouse(window),
  49         ui_res("r2c2.res"),
  50         root(ui_res, &window, &keyboard, &mouse),
  51         base_object(0),
  52         cur_route(0),
  53         cur_zone(0),
  54         mode(SELECT),
  55         sel_wrap(selection),
  56         cur_tool(0)
  57 {
  58         window.set_title("Railway Designer");
  59         window.signal_close.connect(sigc::bind(sigc::mem_fun(this, &Designer::exit), 0));
  60
  61         selection.signal_changed.connect(sigc::mem_fun(this, &Designer::selection_changed));
  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         cat_view = new View3D(*cat_layout_3d, window.get_width(), window.get_height());
  85
  86         main_view = new View3D(*layout_3d, window.get_width(), window.get_height());
  87         GL::Pipeline *pipeline = &main_view->get_pipeline();
  88
  89         GL::Pipeline::Pass *pass = &pipeline->add_pass("unlit");
  90         pass->set_depth_test(&GL::DepthTest::lequal());
  91         pass->set_blend(&GL::Blend::alpha());
  92
  93         pass = &pipeline->add_pass("blended");
  94         pass->set_lighting(&layout_3d->get_lighting());
  95         pass->set_depth_test(&GL::DepthTest::lequal());
  96         pass->set_blend(&GL::Blend::alpha());
  97
  98         pass = &pipeline->add_pass("overlay");
  99         pass->set_blend(&GL::Blend::alpha());
 100
 101         if(base_object)
 102                 pipeline->add_renderable(*base_object);
 103         pipeline->add_renderable_for_pass(layout_3d->get_path_scene(), "unlit");
 104         pipeline->add_renderable_for_pass(layout_3d->get_endpoint_scene(), "unlit");
 105
 106         // Setup UI
 107         keyboard.signal_button_press.connect(sigc::bind_return(sigc::mem_fun(this, &Designer::key_press), false));
 108         mouse.signal_button_press.connect(sigc::bind_return(sigc::mem_fun(this, &Designer::button_press), false));
 109         root.signal_tooltip.connect(sigc::mem_fun(this, &Designer::tooltip));
 110         root_layout = new GLtk::Layout;
 111         root_layout->set_margin(0);
 112         root.set_layout(root_layout);
 113
 114         toolbars.push_back(new Layoutbar(*this));
 115         toolbars.push_back(new Trackbar(*this));
 116         toolbars.push_back(new Routebar(*this));
 117         toolbars.push_back(new Zonebar(*this));
 118         Toolbar *prev = 0;
 119         for(vector<Toolbar *>::iterator i=toolbars.begin(); i!=toolbars.end(); ++i)
 120         {
 121                 root.add(**i);
 122                 if(i!=toolbars.begin())
 123                         (*i)->expand(false);
 124                 (*i)->signal_expanded.connect(sigc::hide(sigc::mem_fun(root_layout, &GLtk::Layout::update)));
 125                 if(prev)
 126                 {
 127                         root_layout->add_constraint(**i, GLtk::Layout::RIGHT_OF, *prev, 0);
 128                         root_layout->add_constraint(**i, GLtk::Layout::COPY_HEIGHT, *prev);
 129                 }
 130                 prev = *i;
 131         }
 132
 133         GLtk::Panel *statusbar = new GLtk::Panel;
 134         root.add(*statusbar);
 135         statusbar->set_focusable(false);
 136         root_layout->set_gravity(*statusbar, -1, -1);
 137         root_layout->set_expand(*statusbar, true, false);
 138
 139         lbl_status = new GLtk::Label;
 140         statusbar->add(*lbl_status);
 141         lbl_status->set_geometry(GLtk::Geometry(20, 2, 300, 16));
 142
 143         pipeline->add_renderable_for_pass(sel_wrap, "unlit");
 144         overlay = new Overlay3D(ui_res.get_default_font());
 145         pipeline->add_renderable_for_pass(*overlay, "overlay");
 146
 147         camera_ctl = new CameraController(*main_view, keyboard, mouse);
 148         cat_view->get_camera().set_look_direction(GL::Vector3(0, 0.13053, -0.99144));
 149         cat_view->view_all(true);
 150         main_view->view_all();
 151
 152         const set<Track *> &tracks = layout->get_all<Track>();
 153         for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 154                 update_track_icon(layout_3d->get<Track3D>(**i));
 155 }
 156
 157 Designer::~Designer()
 158 {
 159         for(vector<Toolbar *>::iterator i=toolbars.begin(); i!=toolbars.end(); ++i)
 160                 delete *i;
 161         delete camera_ctl;
 162         delete overlay;
 163         delete main_view;
 164         delete base_object;
 165         delete layout_3d;
 166         delete layout;
 167         delete cat_view;
 168         delete cat_layout_3d;
 169 }
 170
 171 int Designer::main()
 172 {
 173         window.show();
 174
 175         mode = SELECT;
 176
 177         return Application::main();
 178 }
 179
 180 void Designer::save()
 181 {
 182         InputDialog *input = new InputDialog(*this, "Save layout", filename);
 183         input->signal_accept.connect(sigc::mem_fun(layout, &Layout::save));
 184         root.add(*input);
 185         root_layout->set_gravity(*input, 0, 0);
 186 }
 187
 188 void Designer::quit()
 189 {
 190         exit(0);
 191 }
 192
 193 void Designer::new_track()
 194 {
 195         if(mode!=SELECT)
 196                 return;
 197
 198         mode = CATALOGUE;
 199         lbl_status->set_text("Select new track or press Esc to cancel");
 200 }
 201
 202 void Designer::erase_tracks()
 203 {
 204         if(mode!=SELECT)
 205                 return;
 206
 207         set<Track *> tracks = selection.get_objects<Track>();
 208         selection.clear();
 209         for(set<Track *>::iterator i=tracks.begin(); i!=tracks.end(); ++i)
 210         {
 211                 overlay->clear(layout_3d->get<Track3D>(**i));
 212                 delete *i;
 213         }
 214 }
 215
 216 void Designer::track_properties()
 217 {
 218         if(mode!=SELECT || selection.empty())
 219                 return;
 220
 221         TrackProperties *track_prop = new TrackProperties(selection);
 222         root.add(*track_prop);
 223         root_layout->set_gravity(*track_prop, 0, 0);
 224
 225         track_prop->signal_response.connect(sigc::mem_fun(this, &Designer::track_properties_response));
 226 }
 227
 228 void Designer::extend_track()
 229 {
 230         use_tool_with_selected_objects<ExtendTool>();
 231 }
 232
 233 void Designer::connect_tracks()
 234 {
 235         use_tool_with_selected_objects<ExtendTool>()->connect();
 236 }
 237
 238 void Designer::flatten_tracks()
 239 {
 240         use_tool_with_selected_objects<SlopeTool>()->flatten();
 241 }
 242
 243 void Designer::svg_export()
 244 {
 245         InputDialog *input = new InputDialog(*this, "SVG export", FS::basepart(filename)+".svg");
 246         input->signal_accept.connect(sigc::mem_fun(this, &Designer::svg_export_accept));
 247         root.add(*input);
 248         root_layout->set_gravity(*input, 0, 0);
 249 }
 250
 251 void Designer::edit_route(Route *r)
 252 {
 253         cur_route = r;
 254         cur_zone = 0;
 255         if(cur_route)
 256                 show_route(*cur_route);
 257         else
 258                 clear_paths();
 259 }
 260
 261 void Designer::rename_route()
 262 {
 263         if(mode!=SELECT || !cur_route)
 264                 return;
 265
 266         InputDialog *input = new InputDialog(*this, "Route name", cur_route->get_name());
 267         input->signal_accept.connect(sigc::mem_fun(this, &Designer::route_name_accept));
 268         root.add(*input);
 269         root_layout->set_gravity(*input, 0, 0);
 270 }
 271
 272 void Designer::add_selection_to_route()
 273 {
 274         if(!cur_route)
 275                 return;
 276
 277         try
 278         {
 279                 cur_route->add_tracks(selection.get_objects<Track>());
 280         }
 281         catch(const exception &e)
 282         {
 283                 lbl_status->set_text(e.what());
 284         }
 285
 286         show_route(*cur_route);
 287 }
 288
 289 void Designer::edit_zone(Zone *z)
 290 {
 291         cur_zone = z;
 292         cur_route = 0;
 293         if(cur_zone)
 294                 show_zone(*cur_zone);
 295         else
 296                 clear_paths();
 297 }
 298
 299 void Designer::zone_properties()
 300 {
 301         if(!cur_zone)
 302                 return;
 303
 304         ZoneProperties *zone_prop = new ZoneProperties(*cur_zone);
 305         root.add(*zone_prop);
 306         const GLtk::Geometry &root_geom = root.get_geometry();
 307         const GLtk::Geometry &dlg_geom = zone_prop->get_geometry();
 308         zone_prop->set_position((root_geom.w-dlg_geom.w)/2, (root_geom.h-dlg_geom.h)/2);
 309 }
 310
 311 void Designer::add_selection_to_zone()
 312 {
 313         if(!cur_zone)
 314                 return;
 315
 316         try
 317         {
 318                 cur_zone->add_tracks(selection.get_objects<Track>());
 319         }
 320         catch(const exception &e)
 321         {
 322                 lbl_status->set_text(e.what());
 323         }
 324
 325         show_zone(*cur_zone);
 326 }
 327
 328 Vector Designer::map_pointer_to_ground(const Vector &p)
 329 {
 330         GL::Vector4 vec = main_view->get_camera().unproject(GL::Vector4(p.x, p.y, 0, 0));
 331         const GL::Vector3 &pos = main_view->get_camera().get_position();
 332
 333         return pos-GL::Vector3(vec.x, vec.y, vec.z)*(pos.z/vec.z);
 334 }
 335
 336 void Designer::tick()
 337 {
 338         const Msp::Time::TimeStamp t = Msp::Time::now();
 339         float dt = (t-last_tick)/Msp::Time::sec;
 340         last_tick = t;
 341
 342         if(cur_tool && cur_tool->is_done())
 343         {
 344                 cur_tool->update_selection(selection);
 345                 delete cur_tool;
 346                 cur_tool = 0;
 347                 mode = SELECT;
 348         }
 349
 350         window.tick();
 351         root.tick();
 352         camera_ctl->tick(dt);
 353
 354         render();
 355
 356         window.swap_buffers();
 357 }
 358
 359 void Designer::key_press(unsigned key)
 360 {
 361         bool shift = keyboard.get_button_state(Input::KEY_SHIFT_L) || keyboard.get_button_state(Input::KEY_SHIFT_R);
 362
 363         if(key==Msp::Input::KEY_N && shift)
 364                 use_tool_with_selected_objects<ExtendTool>();
 365         else if(key==Msp::Input::KEY_N)
 366                 new_track();
 367         else if(key==Msp::Input::KEY_G)
 368                 use_tool_with_selected_objects<MoveTool>();
 369         else if(key==Msp::Input::KEY_R)
 370                 use_tool_with_selected_objects<RotateTool>();
 371         else if(key==Msp::Input::KEY_D)
 372         {
 373                 const set<Object *> &sel_objs = selection.get_objects();
 374                 list<Object *> new_objs;
 375                 for(set<Object *>::iterator i=sel_objs.begin(); i!=sel_objs.end(); ++i)
 376                 {
 377                         Object *obj = (*i)->clone(layout);
 378                         for(list<Object *>::iterator j=new_objs.begin(); j!=new_objs.end(); ++j)
 379                                 obj->link_to(**j);
 380                         new_objs.push_back(obj);
 381                 }
 382
 383                 selection.replace(new_objs.begin(), new_objs.end());
 384
 385                 use_tool_with_selected_objects<MoveTool>();
 386         }
 387         else if(key==Msp::Input::KEY_W)
 388                 save();
 389         else if(key==Msp::Input::KEY_PLUS)
 390                 selection.select_more();
 391         else if(key==Msp::Input::KEY_L && shift)
 392                 selection.select_blocks();
 393         else if(key==Msp::Input::KEY_L)
 394                 selection.select_linked();
 395         else if(key==Msp::Input::KEY_M)
 396                 use_tool<Measure>();
 397         else if(key==Msp::Input::KEY_Z)
 398                 use_tool_with_selected_objects<ElevateTool>();
 399         else if(key==Msp::Input::KEY_ESC)
 400         {
 401                 if(cur_tool)
 402                 {
 403                         delete cur_tool;
 404                         cur_tool = 0;
 405                 }
 406                 else if(mode==CATALOGUE)
 407                         mode = SELECT;
 408                 else
 409                         selection.clear();
 410         }
 411         else if(key==Msp::Input::KEY_X)
 412                 erase_tracks();
 413         else if(key==Msp::Input::KEY_F && shift)
 414         {
 415                 const set<Track *> &tracks = selection.get_objects<Track>();
 416                 const set<Track *> &ltracks = layout->get_all<Track>();
 417                 for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 418                 {
 419                         (*i)->set_flex(!(*i)->get_flex());
 420                         (*i)->break_links();
 421                         for(set<Track *>::const_iterator j=ltracks.begin(); j!=ltracks.end(); ++j)
 422                                 if(*j!=*i)
 423                                         (*i)->snap_to(**j, true);
 424
 425                         update_track_icon(layout_3d->get<Track3D>(**i));
 426                 }
 427         }
 428         else if(key==Msp::Input::KEY_F)
 429                 use_tool_with_selected_objects<SlopeTool>()->flatten();
 430         else if(key==Msp::Input::KEY_E && shift)
 431                 use_tool_with_selected_objects<SlopeTool>()->even_slope(true);
 432         else if(key==Msp::Input::KEY_E)
 433                 use_tool_with_selected_objects<SlopeTool>()->even_slope();
 434         else if(key==Msp::Input::KEY_A)
 435         {
 436                 if(cur_route)
 437                         add_selection_to_route();
 438                 else if(cur_zone)
 439                         add_selection_to_zone();
 440         }
 441         else if(key==Msp::Input::KEY_C)
 442                 use_tool_with_selected_objects<ExtendTool>()->connect();
 443         else if(key==Msp::Input::KEY_V)
 444                 svg_export();
 445         else if(key==Msp::Input::KEY_P)
 446                 track_properties();
 447 }
 448
 449 template<typename T>
 450 T *Designer::use_tool_with_selected_objects()
 451 {
 452         T *tool = new T(*this, mouse, selection.get_objects());
 453         use_tool(tool);
 454         return tool;
 455 }
 456
 457 template<typename T>
 458 T *Designer::use_tool()
 459 {
 460         T *tool = new T(*this, mouse);
 461         use_tool(tool);
 462         return tool;
 463 }
 464
 465 void Designer::use_tool(Tool *tool)
 466 {
 467         if(cur_tool)
 468         {
 469                 delete cur_tool;
 470                 cur_tool = 0;
 471         }
 472
 473         cur_tool = tool;
 474         cur_tool->signal_status.connect(sigc::mem_fun(this, &Designer::manipulation_status));
 475         manipulation_status(cur_tool->get_status());
 476         mode = TOOL;
 477 }
 478
 479 void Designer::button_press(unsigned btn)
 480 {
 481         bool shift = keyboard.get_button_state(Input::KEY_SHIFT_L) || keyboard.get_button_state(Input::KEY_SHIFT_R);
 482
 483         Vector pointer(mouse.get_axis_value(0), mouse.get_axis_value(1), 0);
 484         Vector ground = map_pointer_to_ground(pointer);
 485
 486         if(mode==CATALOGUE)
 487         {
 488                 if(btn==1)
 489                 {
 490                         Object *cobj = pick_object(pointer);
 491                         if(cobj)
 492                         {
 493                                 Object *obj = cobj->clone(layout);
 494                                 obj->set_position(ground);
 495
 496                                 selection.clear();
 497                                 selection.add_object(obj);
 498
 499                                 mode = SELECT;
 500                         }
 501                 }
 502                 else
 503                         mode = SELECT;
 504         }
 505         else if(mode==SELECT)
 506         {
 507                 if(btn==1)
 508                 {
 509                         Object *obj = pick_object(pointer);
 510                         if(obj)
 511                         {
 512                                 if(!shift)
 513                                         selection.clear();
 514                                 selection.toggle_object(obj);
 515                         }
 516                 }
 517         }
 518 }
 519
 520 void Designer::render()
 521 {
 522         GL::Framebuffer::system().clear(GL::COLOR_BUFFER_BIT|GL::DEPTH_BUFFER_BIT);
 523
 524         View3D *view = (mode==CATALOGUE ? cat_view : main_view);
 525         view->render();
 526
 527         root.render();
 528 }
 529
 530 Object *Designer::pick_object(const Vector &pointer)
 531 {
 532         View3D &view = *(mode==CATALOGUE ? cat_view : main_view);
 533         const GL::Vector3 &cpos = view.get_camera().get_position();
 534         GL::Vector4 cray = view.get_camera().unproject(GL::Vector4(pointer.x, pointer.y, 0, 0));
 535
 536         return view.get_layout().get_layout().pick<Object>(Ray(cpos, Vector(cray)));
 537 }
 538
 539 void Designer::update_track_icon(Track3D &track)
 540 {
 541         overlay->clear(track);
 542
 543         if(track.get_track().get_flex())
 544                 overlay->add_graphic(track, "flex");
 545
 546         if(unsigned sid = track.get_track().get_sensor_id())
 547         {
 548                 overlay->add_graphic(track, "sensor");
 549                 overlay->set_label(track, lexical_cast<string>(sid));
 550         }
 551         else if(unsigned tid = track.get_track().get_turnout_id())
 552         {
 553                 if(tid<0x800)
 554                 {
 555                         overlay->add_graphic(track, "turnout");
 556                         overlay->set_label(track, lexical_cast<string>(tid));
 557                 }
 558         }
 559 }
 560
 561 void Designer::selection_changed()
 562 {
 563         const set<Track *> &tracks = selection.get_objects<Track>();
 564         if(tracks.empty())
 565                 lbl_status->set_text(string());
 566         else
 567         {
 568                 float len = 0;
 569                 for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 570                         len += (*i)->get_type().get_total_length();
 571                 lbl_status->set_text(format("%.2fm of track selected\n", len));
 572         }
 573 }
 574
 575 void Designer::manipulation_status(const string &status)
 576 {
 577         lbl_status->set_text(status);
 578 }
 579
 580 void Designer::measure_done()
 581 {
 582         mode = SELECT;
 583         selection_changed();
 584 }
 585
 586 void Designer::track_properties_response(int)
 587 {
 588         const set<Track *> &tracks = selection.get_objects<Track>();
 589         for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 590                 update_track_icon(layout_3d->get<Track3D>(**i));
 591 }
 592
 593 void Designer::route_name_accept(const string &text)
 594 {
 595         if(cur_route)
 596                 cur_route->set_name(text);
 597 }
 598
 599 void Designer::svg_export_accept(const string &text)
 600 {
 601         SvgExporter svg_exp(*layout);
 602         svg_exp.save(text);
 603 }
 604
 605 string Designer::tooltip(int x, int y)
 606 {
 607         const GLtk::Geometry &rgeom = root.get_geometry();
 608         if(Object *obj = pick_object(Vector(x*2.0f/rgeom.w-1.0f, y*2.0f/rgeom.h-1.0f, 0)))
 609         {
 610                 const ObjectType &otype = obj->get_type();
 611                 string info = format("%d %s", otype.get_article_number(), otype.get_description());
 612                 if(Track *track = dynamic_cast<Track *>(obj))
 613                 {
 614                         if(mode!=CATALOGUE && abs(track->get_tilt()).radians()>1e-4)
 615                                 info += format(" (slope %.1f%%)", abs(tan(track->get_tilt())*100));
 616                         if(track->get_turnout_id())
 617                                 info += format(" (turnout %d)", track->get_turnout_id());
 618                         else if(track->get_sensor_id())
 619                                 info += format(" (sensor %d)", track->get_sensor_id());
 620                 }
 621                 return info;
 622         }
 623
 624         return string();
 625 }
 626
 627 void Designer::clear_paths()
 628 {
 629         for(list<Path3D *>::iterator i=highlight_paths.begin(); i!=highlight_paths.end(); ++i)
 630                 delete *i;
 631         highlight_paths.clear();
 632 }
 633
 634 void Designer::show_route(const Route &route)
 635 {
 636         clear_paths();
 637
 638         const set<Track *> &rtracks = route.get_tracks();
 639         for(set<Track *>::iterator i=rtracks.begin(); i!=rtracks.end(); ++i)
 640         {
 641                 Track3D &t3d = layout_3d->get<Track3D>(**i);
 642                 Path3D *path = new Path3D(t3d);
 643                 path->set_color(GL::Color(0.5, 0.8, 1.0));
 644                 if(unsigned tid = (*i)->get_turnout_id())
 645                         path->set_path(route.get_turnout(tid));
 646         }
 647 }
 648
 649 void Designer::show_zone(const Zone &zone)
 650 {
 651         clear_paths();
 652
 653         const Zone::TrackSet &ztracks = zone.get_tracks();
 654         for(Zone::TrackSet::const_iterator i=ztracks.begin(); i!=ztracks.end(); ++i)
 655         {
 656                 Track3D &t3d = layout_3d->get<Track3D>(**i);
 657                 Path3D *path = new Path3D(t3d);
 658                 path->set_color(GL::Color(0.8, 1.0, 0.5));
 659         }
 660 }