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/terrain.h"
  21 #include "libr2c2/tracktype.h"
  22 #include "libr2c2/zone.h"
  23 #include "3d/path.h"
  24 #include "designer.h"
  25 #include "elevatetool.h"
  26 #include "extendtool.h"
  27 #include "input.h"
  28 #include "layoutbar.h"
  29 #include "manipulator.h"
  30 #include "measure.h"
  31 #include "movetool.h"
  32 #include "objectproperties.h"
  33 #include "objectselecttool.h"
  34 #include "rotatetool.h"
  35 #include "routebar.h"
  36 #include "selection.h"
  37 #include "slopetool.h"
  38 #include "svgexporter.h"
  39 #include "terraintool.h"
  40 #include "trackbar.h"
  41 #include "zonebar.h"
  42 #include "zoneproperties.h"
  43
  44 using namespace std;
  45 using namespace R2C2;
  46 using namespace Msp;
  47
  48 Designer::Designer(int argc, char **argv):
  49         window(1280, 960),
  50         keyboard(window),
  51         mouse(window),
  52         ui_res("r2c2.res"),
  53         root(ui_res, &window, &keyboard, &mouse),
  54         base_object(0),
  55         cur_route(0),
  56         cur_zone(0),
  57         mode(TOOL),
  58         sel_wrap(selection),
  59         cur_tool(0)
  60 {
  61         window.set_title("Railway Designer");
  62         window.signal_close.connect(sigc::bind(sigc::mem_fun(this, &Designer::exit), 0));
  63
  64         // Setup catalogue and layout
  65         DataFile::load(catalogue, "tracks.dat");
  66         DataFile::load(catalogue, "terrain.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
  78                 if(!layout->get_base().empty())
  79                 {
  80                         base_object = new GL::Object;
  81                         DataFile::load(*base_object, layout->get_base());
  82                 }
  83         }
  84
  85         // Setup OpenGL
  86         cat_view = new View3D(*cat_layout_3d, window.get_width(), window.get_height());
  87
  88         main_view = new View3D(*layout_3d, window.get_width(), window.get_height());
  89         GL::Pipeline *pipeline = &main_view->get_pipeline();
  90
  91         GL::Pipeline::Pass *pass = &pipeline->add_pass("unlit");
  92         pass->set_depth_test(&GL::DepthTest::lequal());
  93         pass->set_blend(&GL::Blend::alpha());
  94
  95         pass = &pipeline->add_pass("blended");
  96         pass->set_lighting(&layout_3d->get_lighting());
  97         pass->set_depth_test(&GL::DepthTest::lequal());
  98         pass->set_blend(&GL::Blend::alpha());
  99
 100         pass = &pipeline->add_pass("overlay");
 101         pass->set_blend(&GL::Blend::alpha());
 102
 103         if(base_object)
 104                 pipeline->add_renderable(*base_object);
 105         pipeline->add_renderable_for_pass(layout_3d->get_path_scene(), "unlit");
 106         pipeline->add_renderable_for_pass(layout_3d->get_endpoint_scene(), "unlit");
 107
 108         // Setup UI
 109         keyboard.signal_button_press.connect(sigc::bind_return(sigc::mem_fun(this, &Designer::key_press), false));
 110         mouse.signal_button_press.connect(sigc::bind_return(sigc::mem_fun(this, &Designer::button_press), false));
 111         root.signal_tooltip.connect(sigc::mem_fun(this, &Designer::tooltip));
 112         root_layout = new GLtk::Layout;
 113         root_layout->set_margin(0);
 114         root.set_layout(root_layout);
 115
 116         toolbars.push_back(new Layoutbar(*this));
 117         toolbars.push_back(new Trackbar(*this));
 118         toolbars.push_back(new Routebar(*this));
 119         toolbars.push_back(new Zonebar(*this));
 120         Toolbar *prev = 0;
 121         for(vector<Toolbar *>::iterator i=toolbars.begin(); i!=toolbars.end(); ++i)
 122         {
 123                 root.add(**i);
 124                 if(i!=toolbars.begin())
 125                         (*i)->expand(false);
 126                 (*i)->signal_expanded.connect(sigc::hide(sigc::mem_fun(root_layout, &GLtk::Layout::update)));
 127                 if(prev)
 128                 {
 129                         root_layout->add_constraint(**i, GLtk::Layout::RIGHT_OF, *prev, 0);
 130                         root_layout->add_constraint(**i, GLtk::Layout::COPY_HEIGHT, *prev);
 131                 }
 132                 prev = *i;
 133         }
 134
 135         GLtk::Panel *statusbar = new GLtk::Panel;
 136         root.add(*statusbar);
 137         statusbar->set_focusable(false);
 138         root_layout->set_gravity(*statusbar, -1, -1);
 139         root_layout->set_expand(*statusbar, true, false);
 140
 141         lbl_status = new GLtk::Label;
 142         statusbar->add(*lbl_status);
 143         lbl_status->set_geometry(GLtk::Geometry(20, 2, 300, 16));
 144
 145         pipeline->add_renderable_for_pass(sel_wrap, "unlit");
 146         overlay = new Overlay3D(ui_res.get_default_font());
 147         pipeline->add_renderable_for_pass(*overlay, "overlay");
 148
 149         camera_ctl = new CameraController(*main_view, keyboard, mouse);
 150         cat_view->get_camera().set_look_direction(GL::Vector3(0, 0.13053, -0.99144));
 151         cat_view->view_all(true);
 152         main_view->view_all();
 153
 154         const set<Object *> &objects = layout->get_all<Object>();
 155         for(set<Object *>::const_iterator i=objects.begin(); i!=objects.end(); ++i)
 156                 update_object_icon(**i);
 157 }
 158
 159 Designer::~Designer()
 160 {
 161         for(vector<Toolbar *>::iterator i=toolbars.begin(); i!=toolbars.end(); ++i)
 162                 delete *i;
 163         delete camera_ctl;
 164         delete overlay;
 165         delete main_view;
 166         delete base_object;
 167         delete layout_3d;
 168         delete layout;
 169         delete cat_view;
 170         delete cat_layout_3d;
 171 }
 172
 173 int Designer::main()
 174 {
 175         window.show();
 176
 177         use_select_tool();
 178
 179         return Application::main();
 180 }
 181
 182 void Designer::save()
 183 {
 184         InputDialog *input = new InputDialog(*this, "Save layout", filename);
 185         input->signal_accept.connect(sigc::mem_fun(layout, &Layout::save));
 186         root.add(*input);
 187         root_layout->set_gravity(*input, 0, 0);
 188 }
 189
 190 void Designer::quit()
 191 {
 192         exit(0);
 193 }
 194
 195 void Designer::new_object()
 196 {
 197         use_select_tool();
 198
 199         mode = CATALOGUE;
 200         lbl_status->set_text("Select new object or press Esc to cancel");
 201 }
 202
 203 void Designer::erase_objects()
 204 {
 205         use_select_tool();
 206
 207         set<Object *> objects = selection.get_objects();
 208         selection.clear();
 209         for(set<Object *>::iterator i=objects.begin(); i!=objects.end(); ++i)
 210         {
 211                 overlay->clear(layout_3d->get_3d(**i));
 212                 delete *i;
 213         }
 214 }
 215
 216 void Designer::object_properties()
 217 {
 218         use_select_tool();
 219         if(selection.empty())
 220                 return;
 221
 222         ObjectProperties *dlg = new ObjectProperties(selection);
 223         root.add(*dlg);
 224         root_layout->set_gravity(*dlg, 0, 0);
 225
 226         dlg->signal_response.connect(sigc::mem_fun(this, &Designer::object_properties_response));
 227 }
 228
 229 void Designer::extend_track()
 230 {
 231         use_tool_with_selected_objects<ExtendTool>();
 232 }
 233
 234 void Designer::connect_tracks()
 235 {
 236         use_tool_with_selected_objects<ExtendTool>()->connect();
 237 }
 238
 239 void Designer::flatten_tracks()
 240 {
 241         use_tool_with_selected_objects<SlopeTool>()->flatten();
 242 }
 243
 244 void Designer::svg_export()
 245 {
 246         InputDialog *input = new InputDialog(*this, "SVG export", FS::basepart(filename)+".svg");
 247         input->signal_accept.connect(sigc::mem_fun(this, &Designer::svg_export_accept));
 248         root.add(*input);
 249         root_layout->set_gravity(*input, 0, 0);
 250 }
 251
 252 void Designer::edit_route(Route *r)
 253 {
 254         cur_route = r;
 255         cur_zone = 0;
 256         if(cur_route)
 257                 show_route(*cur_route);
 258         else
 259                 clear_paths();
 260 }
 261
 262 void Designer::rename_route()
 263 {
 264         use_select_tool();
 265         if(!cur_route)
 266                 return;
 267
 268         InputDialog *input = new InputDialog(*this, "Route name", cur_route->get_name());
 269         input->signal_accept.connect(sigc::mem_fun(this, &Designer::route_name_accept));
 270         root.add(*input);
 271         root_layout->set_gravity(*input, 0, 0);
 272 }
 273
 274 void Designer::add_selection_to_route()
 275 {
 276         if(!cur_route)
 277                 return;
 278
 279         try
 280         {
 281                 cur_route->add_tracks(selection.get_objects<Track>());
 282         }
 283         catch(const exception &e)
 284         {
 285                 lbl_status->set_text(e.what());
 286         }
 287
 288         show_route(*cur_route);
 289 }
 290
 291 void Designer::edit_zone(Zone *z)
 292 {
 293         cur_zone = z;
 294         cur_route = 0;
 295         if(cur_zone)
 296                 show_zone(*cur_zone);
 297         else
 298                 clear_paths();
 299 }
 300
 301 void Designer::zone_properties()
 302 {
 303         if(!cur_zone)
 304                 return;
 305
 306         ZoneProperties *zone_prop = new ZoneProperties(*cur_zone);
 307         root.add(*zone_prop);
 308         const GLtk::Geometry &root_geom = root.get_geometry();
 309         const GLtk::Geometry &dlg_geom = zone_prop->get_geometry();
 310         zone_prop->set_position((root_geom.w-dlg_geom.w)/2, (root_geom.h-dlg_geom.h)/2);
 311 }
 312
 313 void Designer::add_selection_to_zone()
 314 {
 315         if(!cur_zone)
 316                 return;
 317
 318         try
 319         {
 320                 cur_zone->add_tracks(selection.get_objects<Track>());
 321         }
 322         catch(const exception &e)
 323         {
 324                 lbl_status->set_text(e.what());
 325         }
 326
 327         show_zone(*cur_zone);
 328 }
 329
 330 Vector Designer::map_pointer_to_ground(const Vector &p)
 331 {
 332         GL::Vector4 vec = main_view->get_camera().unproject(GL::Vector4(p.x, p.y, 0, 0));
 333         const GL::Vector3 &pos = main_view->get_camera().get_position();
 334
 335         return pos-GL::Vector3(vec.x, vec.y, vec.z)*(pos.z/vec.z);
 336 }
 337
 338 void Designer::tick()
 339 {
 340         const Msp::Time::TimeStamp t = Msp::Time::now();
 341         float dt = (t-last_tick)/Msp::Time::sec;
 342         last_tick = t;
 343
 344         if(cur_tool && cur_tool->is_done())
 345         {
 346                 cur_tool->update_selection(selection);
 347                 use_select_tool();
 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_object();
 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_M)
 390                 use_tool<Measure>();
 391         else if(key==Msp::Input::KEY_Z)
 392                 use_tool_with_selected_objects<ElevateTool>();
 393         else if(key==Msp::Input::KEY_ESC)
 394         {
 395                 if(mode==CATALOGUE)
 396                         use_select_tool();
 397         }
 398         else if(key==Msp::Input::KEY_X)
 399                 erase_objects();
 400         else if(key==Msp::Input::KEY_F && shift)
 401         {
 402                 const set<Track *> &tracks = selection.get_objects<Track>();
 403                 const set<Track *> &ltracks = layout->get_all<Track>();
 404                 for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
 405                 {
 406                         (*i)->set_flex(!(*i)->get_flex());
 407                         (*i)->break_links();
 408                         for(set<Track *>::const_iterator j=ltracks.begin(); j!=ltracks.end(); ++j)
 409                                 if(*j!=*i)
 410                                         (*i)->snap_to(**j, true);
 411
 412                         update_object_icon(**i);
 413                 }
 414         }
 415         else if(key==Msp::Input::KEY_F)
 416                 use_tool_with_selected_objects<SlopeTool>()->flatten();
 417         else if(key==Msp::Input::KEY_E && shift)
 418                 use_tool_with_selected_objects<SlopeTool>()->even_slope(true);
 419         else if(key==Msp::Input::KEY_E)
 420                 use_tool_with_selected_objects<SlopeTool>()->even_slope();
 421         else if(key==Msp::Input::KEY_A)
 422         {
 423                 if(cur_route)
 424                         add_selection_to_route();
 425                 else if(cur_zone)
 426                         add_selection_to_zone();
 427         }
 428         else if(key==Msp::Input::KEY_C)
 429                 use_tool_with_selected_objects<ExtendTool>()->connect();
 430         else if(key==Msp::Input::KEY_V)
 431                 svg_export();
 432         else if(key==Msp::Input::KEY_P)
 433                 object_properties();
 434         else if(key==Msp::Input::KEY_TAB)
 435         {
 436                 Object *obj = selection.get_object();
 437                 if(Terrain *terrain = dynamic_cast<Terrain *>(obj))
 438                         use_tool(new TerrainTool(*this, keyboard, mouse, *terrain));
 439         }
 440 }
 441
 442 template<typename T>
 443 T *Designer::use_tool_with_selected_objects()
 444 {
 445         T *tool = new T(*this, keyboard, mouse, selection.get_objects());
 446         use_tool(tool);
 447         return tool;
 448 }
 449
 450 template<typename T>
 451 T *Designer::use_tool()
 452 {
 453         T *tool = new T(*this, keyboard, mouse);
 454         use_tool(tool);
 455         return tool;
 456 }
 457
 458 void Designer::use_tool(Tool *tool)
 459 {
 460         if(cur_tool)
 461         {
 462                 delete cur_tool;
 463                 cur_tool = 0;
 464         }
 465
 466         cur_tool = tool;
 467         cur_tool->signal_status.connect(sigc::mem_fun(this, &Designer::tool_status));
 468         tool_status(cur_tool->get_status());
 469         mode = TOOL;
 470 }
 471
 472 void Designer::use_select_tool()
 473 {
 474         use_tool(new ObjectSelectTool(*this, keyboard, mouse, selection));
 475 }
 476
 477 void Designer::button_press(unsigned btn)
 478 {
 479         Vector pointer(mouse.get_axis_value(0), mouse.get_axis_value(1), 0);
 480         Vector ground = map_pointer_to_ground(pointer);
 481
 482         if(mode==CATALOGUE)
 483         {
 484                 Object *obj;
 485                 if(btn==1)
 486                         obj = pick_object(pointer);
 487
 488                 if(obj)
 489                 {
 490                         obj = obj->clone(layout);
 491                         obj->set_position(ground);
 492
 493                         selection.clear();
 494                         selection.add_object(obj);
 495                 }
 496
 497                 if(obj || btn==3)
 498                         use_select_tool();
 499         }
 500 }
 501
 502 void Designer::render()
 503 {
 504         GL::Framebuffer::system().clear(GL::COLOR_BUFFER_BIT|GL::DEPTH_BUFFER_BIT);
 505
 506         View3D *view = (mode==CATALOGUE ? cat_view : main_view);
 507         view->render();
 508
 509         root.render();
 510 }
 511
 512 Object *Designer::pick_object(const Vector &pointer)
 513 {
 514         View3D &view = *(mode==CATALOGUE ? cat_view : main_view);
 515         const GL::Vector3 &cpos = view.get_camera().get_position();
 516         GL::Vector4 cray = view.get_camera().unproject(GL::Vector4(pointer.x, pointer.y, 0, 0));
 517
 518         return view.get_layout().get_layout().pick<Object>(Ray(cpos, Vector(cray)));
 519 }
 520
 521 void Designer::update_object_icon(Object &obj)
 522 {
 523         Object3D &obj3d = layout_3d->get_3d(obj);
 524         overlay->clear(obj3d);
 525
 526         if(Track *track = dynamic_cast<Track *>(&obj))
 527         {
 528                 if(track->get_flex())
 529                         overlay->add_graphic(obj3d, "flex");
 530
 531                 if(unsigned saddr = track->get_sensor_address())
 532                 {
 533                         overlay->add_graphic(obj3d, "trackcircuit");
 534                         overlay->set_label(obj3d, lexical_cast<string>(saddr));
 535                 }
 536                 else if(unsigned taddr = track->get_turnout_address())
 537                 {
 538                         if(taddr<0x800)
 539                         {
 540                                 overlay->add_graphic(obj3d, "turnout");
 541                                 overlay->set_label(obj3d, lexical_cast<string>(taddr));
 542                         }
 543                 }
 544         }
 545         else if(Signal *signal = dynamic_cast<Signal *>(&obj))
 546         {
 547                 overlay->add_graphic(obj3d, "signal");
 548                 overlay->set_label(obj3d, lexical_cast<string>(signal->get_address()));
 549         }
 550         else if(BeamGate *gate = dynamic_cast<BeamGate *>(&obj))
 551         {
 552                 overlay->add_graphic(obj3d, "beamgate");
 553                 overlay->set_label(obj3d, lexical_cast<string>(gate->get_address()));
 554         }
 555 }
 556
 557 void Designer::tool_status(const string &status)
 558 {
 559         lbl_status->set_text(status);
 560 }
 561
 562 void Designer::object_properties_response(int)
 563 {
 564         const set<Object *> &objects = selection.get_objects();
 565         for(set<Object *>::const_iterator i=objects.begin(); i!=objects.end(); ++i)
 566                 update_object_icon(**i);
 567 }
 568
 569 void Designer::route_name_accept(const string &text)
 570 {
 571         if(cur_route)
 572                 cur_route->set_name(text);
 573 }
 574
 575 void Designer::svg_export_accept(const string &text)
 576 {
 577         SvgExporter svg_exp(*layout);
 578         svg_exp.save(text);
 579 }
 580
 581 string Designer::tooltip(int x, int y)
 582 {
 583         const GLtk::Geometry &rgeom = root.get_geometry();
 584         if(Object *obj = pick_object(Vector(x*2.0f/rgeom.w-1.0f, y*2.0f/rgeom.h-1.0f, 0)))
 585         {
 586                 const ObjectType &otype = obj->get_type();
 587                 string info = format("%d %s", otype.get_article_number(), otype.get_description());
 588                 if(Track *track = dynamic_cast<Track *>(obj))
 589                 {
 590                         if(mode!=CATALOGUE && abs(track->get_tilt()).radians()>1e-4)
 591                                 info += format(" (slope %.1f%%)", abs(tan(track->get_tilt())*100));
 592                         if(track->get_turnout_address())
 593                                 info += format(" (turnout %d)", track->get_turnout_address());
 594                         else if(track->get_sensor_address())
 595                                 info += format(" (sensor %d)", track->get_sensor_address());
 596                 }
 597                 return info;
 598         }
 599
 600         return string();
 601 }
 602
 603 void Designer::clear_paths()
 604 {
 605         for(list<Path3D *>::iterator i=highlight_paths.begin(); i!=highlight_paths.end(); ++i)
 606                 delete *i;
 607         highlight_paths.clear();
 608 }
 609
 610 void Designer::show_route(const Route &route)
 611 {
 612         clear_paths();
 613
 614         const set<Track *> &rtracks = route.get_tracks();
 615         for(set<Track *>::iterator i=rtracks.begin(); i!=rtracks.end(); ++i)
 616         {
 617                 Track3D &t3d = layout_3d->get_3d(**i);
 618                 Path3D *path = new Path3D(t3d);
 619                 path->set_color(GL::Color(0.5, 0.8, 1.0));
 620                 if(unsigned taddr = (*i)->get_turnout_address())
 621                         path->set_path(route.get_turnout(taddr));
 622         }
 623 }
 624
 625 void Designer::show_zone(const Zone &zone)
 626 {
 627         clear_paths();
 628
 629         const Zone::TrackSet &ztracks = zone.get_tracks();
 630         for(Zone::TrackSet::const_iterator i=ztracks.begin(); i!=ztracks.end(); ++i)
 631         {
 632                 Track3D &t3d = layout_3d->get_3d(**i);
 633                 Path3D *path = new Path3D(t3d);
 634                 path->set_color(GL::Color(0.8, 1.0, 0.5));
 635         }
 636 }