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1 /* $Id$
2
3 This file is part of R²C²
4 Copyright © 2006-2010 Mikkosoft Productions, Mikko Rasa
5 Distributed under the GPL
6 */
7
8 #include <signal.h>
9 #include <algorithm>
10 #include <cmath>
11 #include <msp/fs/utils.h>
12 #include <msp/gl/blend.h>
13 #include <msp/gl/framebuffer.h>
14 #include <msp/gl/matrix.h>
15 #include <msp/gl/misc.h>
16 #include <msp/gl/projection.h>
17 #include <msp/gl/rendermode.h>
18 #include <msp/gl/select.h>
19 #include <msp/gl/tests.h>
20 #include <msp/gl/texture2d.h>
21 #include <msp/input/keys.h>
22 #include <msp/io/print.h>
23 #include <msp/strings/codec.h>
24 #include <msp/strings/lexicalcast.h>
25 #include <msp/strings/utf8.h>
26 #include <msp/strings/utils.h>
27 #include <msp/time/units.h>
28 #include <msp/time/utils.h>
29 #include "libr2c2/route.h"
30 #include "libr2c2/tracktype.h"
31 #include "3d/path.h"
32 #include "designer.h"
33 #include "input.h"
34 #include "layoutbar.h"
35 #include "manipulator.h"
36 #include "measure.h"
37 #include "routebar.h"
38 #include "selection.h"
39 #include "svgexporter.h"
40 #include "trackbar.h"
41 #include "trackproperties.h"
42
43 using namespace std;
44 using namespace R2C2;
45 using namespace Msp;
46
47 Application::RegApp<Designer> Designer::reg;
48
49 Designer::Designer(int argc, char **argv):
50         window(1280, 960),
51         ui_res("r2c2.res"),
52         root(ui_res, window),
53         base_object(0),
54         cur_route(0),
55         mode(SELECT),
56         manipulator(*this, root, selection),
57         measure(*this),
58         camera_ctl(*this, root, camera),
59         track_wrap(*this, selection)
60 {
61         window.set_title("Railway Designer");
62         window.signal_close.connect(sigc::bind(sigc::mem_fun(this, &Designer::exit), 0));
63
64         selection.signal_changed.connect(sigc::mem_fun(this, &Designer::selection_changed));
65         manipulator.signal_status.connect(sigc::mem_fun(this, &Designer::manipulation_status));
66         manipulator.signal_done.connect(sigc::mem_fun(this, &Designer::manipulation_done));
67         measure.signal_changed.connect(sigc::mem_fun(this, &Designer::measure_changed));
68         measure.signal_done.connect(sigc::mem_fun(this, &Designer::measure_done));
69
70         // Setup catalogue and layout
71         DataFile::load(catalogue, "tracks.dat");
72
73         cat_layout_3d = new Layout3D(catalogue.get_layout());
74
75         layout = new Layout(catalogue);
76         layout_3d = new Layout3D(*layout);
77
78         layout->signal_track_added.connect(sigc::mem_fun(this, &Designer::track_added));
79         layout->signal_track_removed.connect(sigc::mem_fun(this, &Designer::track_removed));
80
81         if(argc>1)
82         {
83                 filename = argv[1];
84                 DataFile::load(*layout, argv[1]);
85
86                 if(!layout->get_base().empty())
87                 {
88                         base_object = new GL::Object;
89                         DataFile::load(*base_object, layout->get_base());
90                 }
91         }
92
93         // Setup OpenGL
94         GL::enable(GL_CULL_FACE);
95
96         pipeline = new GL::Pipeline(window.get_width(), window.get_height(), false);
97         pipeline->set_camera(&camera);
98         pipeline->add_renderable_for_pass(layout_3d->get_scene(), 0);
99         if(base_object)
100                 pipeline->add_renderable(*base_object);
101         pipeline->add_renderable_for_pass(track_wrap, "unlit");
102         pipeline->add_renderable_for_pass(layout_3d->get_path_scene(), "unlit");
103         pipeline->add_renderable_for_pass(layout_3d->get_endpoint_scene(), "unlit");
104
105         light.set_position(0, -0.259, 0.966, 0);
106         lighting.attach(0, light);
107
108         GL::PipelinePass *pass = &pipeline->add_pass(0);
109         pass->lighting = &lighting;
110         pass->depth_test = &GL::DepthTest::lequal();
111
112         pass = &pipeline->add_pass("unlit");
113         pass->depth_test = &GL::DepthTest::lequal();
114         pass->blend = &GL::Blend::alpha();
115
116         pass = &pipeline->add_pass("blended");
117         pass->lighting = &lighting;
118         pass->depth_test = &GL::DepthTest::lequal();
119         pass->blend = &GL::Blend::alpha();
120
121         camera.set_up_direction(GL::Vector3(0, 0, 1));
122         camera.set_look_direction(GL::Vector3(0, 0.5, -0.866));
123
124         // Setup UI
125         root.signal_key_press.connect(sigc::mem_fun(this, &Designer::key_press));
126         root.signal_button_press.connect(sigc::mem_fun(this, &Designer::button_press));
127         root.signal_pointer_motion.connect(sigc::mem_fun(this, &Designer::pointer_motion));
128         root.signal_tooltip.connect(sigc::mem_fun(this, &Designer::tooltip));
129
130         toolbars.push_back(new Layoutbar(*this));
131         toolbars.push_back(new Trackbar(*this));
132         toolbars.push_back(new Routebar(*this));
133         for(vector<Toolbar *>::iterator i=toolbars.begin(); i!=toolbars.end(); ++i)
134         {
135                 root.add(**i);
136                 if(i!=toolbars.begin())
137                         (*i)->expand(false);
138                 (*i)->signal_expanded.connect(sigc::hide(sigc::mem_fun(this, &Designer::arrange_toolbars)));
139         }
140         arrange_toolbars();
141
142         GLtk::Panel *statusbar = new GLtk::Panel;
143         root.add(*statusbar);
144         statusbar->set_size(window.get_width(), 20);
145         statusbar->set_focusable(false);
146
147         lbl_status = new GLtk::Label;
148         statusbar->add(*lbl_status);
149         lbl_status->set_geometry(GLtk::Geometry(20, 2, 300, 16));
150
151         overlay = new Overlay3D(window, camera, ui_res.get_default_font());
152
153         camera_ctl.view_all();
154
155         const Layout3D::TrackMap &tracks = layout_3d->get_tracks();
156         for(Layout3D::TrackMap::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
157                 update_track_icon(*i->second);
158 }
159
160 Designer::~Designer()
161 {
162         delete overlay;
163         delete pipeline;
164         delete base_object;
165         delete layout_3d;
166         delete layout;
167         delete cat_layout_3d;
168 }
169
170 int Designer::main()
171 {
172         window.show();
173
174         mode = SELECT;
175
176         return Application::main();
177 }
178
179 void Designer::save()
180 {
181         InputDialog *input = new InputDialog(*this, "Save layout", filename);
182         input->signal_accept.connect(sigc::mem_fun(layout, &Layout::save));
183 }
184
185 void Designer::quit()
186 {
187         exit(0);
188 }
189
190 void Designer::new_track()
191 {
192         mode = CATALOGUE;
193 }
194
195 void Designer::track_properties()
196 {
197         if(selection.empty())
198                 return;
199
200         TrackProperties *track_prop = new TrackProperties(selection);
201         root.add(*track_prop);
202         const GLtk::Geometry &root_geom = root.get_geometry();
203         const GLtk::Geometry &dlg_geom = track_prop->get_geometry();
204         track_prop->set_position((root_geom.w-dlg_geom.w)/2, (root_geom.h-dlg_geom.h)/2);
205
206         track_prop->signal_response.connect(sigc::mem_fun(this, &Designer::track_properties_response));
207 }
208
209 void Designer::rename_route()
210 {
211         if(!cur_route)
212                 return;
213
214         InputDialog *input = new InputDialog(*this, "Route name", cur_route->get_name());
215         input->signal_accept.connect(sigc::mem_fun(this, &Designer::route_name_accept));
216 }
217
218 void Designer::svg_export()
219 {
220         InputDialog *input = new InputDialog(*this, "SVG export", FS::basepart(filename)+".svg");
221         input->signal_accept.connect(sigc::mem_fun(this, &Designer::svg_export_accept));
222 }
223
224 void Designer::edit_route(Route *r)
225 {
226         cur_route = r;
227         show_route(r);
228 }
229
230 void Designer::add_selection_to_route()
231 {
232         if(!cur_route)
233                 return;
234
235         try
236         {
237                 cur_route->add_tracks(selection.get_tracks());
238         }
239         catch(const Exception &e)
240         {
241                 lbl_status->set_text(e.what());
242         }
243
244         show_route(cur_route);
245 }
246
247 Point Designer::map_pointer_to_ground(int x, int y)
248 {
249         float xf = x*2.0/window.get_width()-1.0;
250         float yf = y*2.0/window.get_height()-1.0;
251         GL::Vector4 vec = camera.unproject(GL::Vector4(xf, yf, 0, 0));
252         const GL::Vector3 &pos = camera.get_position();
253
254         return Point(pos.x-vec.x*pos.z/vec.z, pos.y-vec.y*pos.z/vec.z);
255 }
256
257 void Designer::tick()
258 {
259         const Msp::Time::TimeStamp t = Msp::Time::now();
260         float dt = (t-last_tick)/Msp::Time::sec;
261         last_tick = t;
262
263         if(mode==MANIPULATE_DONE)
264                 mode = SELECT;
265
266         window.tick();
267         root.tick();
268         camera_ctl.tick(dt);
269
270         for(list<Track *>::iterator i=new_tracks.begin(); i!=new_tracks.end(); ++i)
271                 layout_3d->get_track(**i).get_path().set_mask(0);
272         new_tracks.clear();
273
274         render();
275
276         window.swap_buffers();
277 }
278
279 void Designer::key_press(unsigned key, unsigned mod, wchar_t)
280 {
281         key = Input::key_from_sys(key);
282         mod = Input::mod_from_sys(mod);
283
284         if(key==Msp::Input::KEY_N && (mod&Input::MOD_SHIFT))
285         {
286                 manipulator.start_extend();
287                 mode = MANIPULATE;
288         }
289         else if(key==Msp::Input::KEY_N)
290                 new_track();
291         else if(key==Msp::Input::KEY_G)
292         {
293                 manipulator.start_move();
294                 mode = MANIPULATE;
295         }
296         else if(key==Msp::Input::KEY_R)
297         {
298                 manipulator.start_rotate();
299                 mode = MANIPULATE;
300         }
301         else if(key==Msp::Input::KEY_D)
302         {
303                 manipulator.duplicate();
304                 manipulator.start_move();
305                 mode = MANIPULATE;
306         }
307         else if(key==Msp::Input::KEY_W)
308                 save();
309         else if(key==Msp::Input::KEY_PLUS)
310                 selection.select_more();
311         else if(key==Msp::Input::KEY_L && (mod&Input::MOD_SHIFT))
312                 selection.select_blocks();
313         else if(key==Msp::Input::KEY_L)
314                 selection.select_linked();
315         else if(key==Msp::Input::KEY_M)
316         {
317                 measure.start();
318                 mode = MEASURE;
319         }
320         else if(key==Msp::Input::KEY_Z)
321         {
322                 manipulator.start_elevate();
323                 mode = MANIPULATE;
324         }
325         else if(key==Msp::Input::KEY_ESC)
326         {
327                 if(mode==MANIPULATE)
328                         manipulator.cancel();
329                 else if(mode==CATALOGUE)
330                         mode = SELECT;
331                 else
332                         selection.clear();
333         }
334         else if(key==Msp::Input::KEY_X)
335         {
336                 set<Track *> tracks = selection.get_tracks();
337                 selection.clear();
338                 for(set<Track *>::iterator i=tracks.begin(); i!=tracks.end(); ++i)
339                 {
340                         overlay->clear(layout_3d->get_track(**i));
341                         layout->remove_track(**i);
342                         delete *i;
343                 }
344         }
345         else if(key==Msp::Input::KEY_F && (mod&Input::MOD_SHIFT))
346         {
347                 const set<Track *> &tracks = selection.get_tracks();
348                 const set<Track *> &ltracks = layout->get_tracks();
349                 for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
350                 {
351                         (*i)->set_flex(!(*i)->get_flex());
352                         (*i)->break_links();
353                         for(set<Track *>::const_iterator j=ltracks.begin(); j!=ltracks.end(); ++j)
354                                 if(*j!=*i)
355                                         (*i)->snap_to(**j, true);
356
357                         update_track_icon(layout_3d->get_track(**i));
358                 }
359         }
360         else if(key==Msp::Input::KEY_F)
361                 manipulator.flatten();
362         else if(key==Msp::Input::KEY_E && (mod&Input::MOD_SHIFT))
363                 manipulator.even_slope(true);
364         else if(key==Msp::Input::KEY_E)
365                 manipulator.even_slope();
366         else if(key==Msp::Input::KEY_A)
367                 add_selection_to_route();
368         else if(key==Msp::Input::KEY_C)
369                 manipulator.connect();
370         else if(key==Msp::Input::KEY_V)
371                 svg_export();
372         else if(key==Msp::Input::KEY_P)
373                 track_properties();
374 }
375
376 void Designer::button_press(int x, int y, unsigned btn, unsigned mod)
377 {
378         y = window.get_height()-y-1;
379         mod = Input::mod_from_sys(mod);
380
381         Point ground = map_pointer_to_ground(x, y);
382
383         if(mode==CATALOGUE)
384         {
385                 if(btn==1)
386                 {
387                         Track3D *ctrack = pick_track(x, y);
388                         if(ctrack)
389                         {
390                                 Track *track = new Track(*layout, ctrack->get_track().get_type());
391                                 track->set_position(ground);
392
393                                 selection.clear();
394                                 selection.add_track(track);
395
396                                 mode = SELECT;
397                         }
398                 }
399                 else
400                         mode = SELECT;
401         }
402         else if(mode==SELECT)
403         {
404                 if(btn==1)
405                 {
406                         Track3D *track = pick_track(x, y);
407                         if(track)
408                         {
409                                 if(!(mod&Input::MOD_SHIFT))
410                                         selection.clear();
411                                 selection.toggle_track(&track->get_track());
412                         }
413                 }
414         }
415         else if(mode==MEASURE)
416                 measure.button_press(x, y, ground.x, ground.y, btn);
417 }
418
419 void Designer::pointer_motion(int x, int y)
420 {
421         y = window.get_height()-y-1;
422
423         if(!root.get_child_at(x, y))
424         {
425                 Point ground = map_pointer_to_ground(x, y);
426                 measure.pointer_motion(x, y, ground.x, ground.y);
427         }
428 }
429
430 void Designer::apply_camera()
431 {
432         if(mode==CATALOGUE)
433         {
434                 GL::matrix_mode(GL::PROJECTION);
435                 GL::load_identity();
436                 GL::frustum_centered(0.11046, 0.082843, 0.1, 10);
437                 GL::matrix_mode(GL::MODELVIEW);
438                 GL::load_identity();
439                 GL::translate(0, 0, -1);
440         }
441         else
442                 camera.apply();
443 }
444
445 void Designer::render()
446 {
447         GL::Framebuffer::system().clear(GL::COLOR_BUFFER_BIT|GL::DEPTH_BUFFER_BIT);
448
449         if(mode==CATALOGUE)
450         {
451                 apply_camera();
452                 cat_layout_3d->get_scene().render();
453         }
454         else
455         {
456                 pipeline->render_all();
457                 GL::enable(GL_CULL_FACE);
458                 {
459                         GL::Bind bind_blend(GL::Blend::alpha());
460                         overlay->render(0);
461                 }
462
463                 GL::Bind bind_depth(GL::DepthTest::lequal());
464                 if(mode==MEASURE)
465                         measure.render();
466         }
467
468         GL::matrix_mode(GL::PROJECTION);
469         GL::load_identity();
470         GL::ortho_bottomleft(window.get_width(), window.get_height());
471         GL::matrix_mode(GL::MODELVIEW);
472         GL::load_identity();
473
474         GL::disable(GL::DEPTH_TEST);
475
476         GL::Bind bind_blend(GL::Blend::alpha());
477         root.render();
478         GL::Texture::unbind();
479 }
480
481 void Designer::track_added(Track &trk)
482 {
483         new_tracks.push_back(&trk);
484 }
485
486 void Designer::track_removed(Track &trk)
487 {
488         list<Track *>::iterator i = find(new_tracks.begin(), new_tracks.end(), &trk);
489         if(i!=new_tracks.end())
490                 new_tracks.erase(i);
491 }
492
493 Track3D *Designer::pick_track(int x, int y)
494 {
495         Layout3D *l = layout_3d;
496         if(mode==CATALOGUE)
497                 l = cat_layout_3d;
498
499         float xx = ((float(x)-window.get_width()/2)/window.get_height())*0.82843;
500         float yy = (float(y)/window.get_height()-0.5)*0.82843;
501         float size = 4.0/window.get_height()*0.82843;
502
503         apply_camera();
504
505         return l->pick_track(xx, yy, size);
506 }
507
508 void Designer::update_track_icon(Track3D &track)
509 {
510         overlay->clear(track);
511
512         if(track.get_track().get_flex())
513                 overlay->add_graphic(track, "flex");
514
515         if(unsigned sid = track.get_track().get_sensor_id())
516         {
517                 overlay->add_graphic(track, "sensor");
518                 overlay->set_label(track, lexical_cast(sid));
519         }
520         else if(unsigned tid = track.get_track().get_turnout_id())
521         {
522                 if(tid<0x800)
523                 {
524                         overlay->add_graphic(track, "turnout");
525                         overlay->set_label(track, lexical_cast(tid));
526                 }
527         }
528 }
529
530 void Designer::selection_changed()
531 {
532         const set<Track *> &tracks = selection.get_tracks();
533         if(tracks.empty())
534                 lbl_status->set_text(string());
535         else
536         {
537                 float len = 0;
538                 for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
539                         len += (*i)->get_type().get_total_length();
540                 lbl_status->set_text(format("%.2fm of track selected\n", len));
541         }
542 }
543
544 void Designer::manipulation_status(const string &status)
545 {
546         lbl_status->set_text(status);
547 }
548
549 void Designer::manipulation_done(bool)
550 {
551         mode = MANIPULATE_DONE;
552         selection_changed();
553 }
554
555 void Designer::measure_changed()
556 {
557         float pard = measure.get_parallel_distance()*1000;
558         float perpd = measure.get_perpendicular_distance()*1000;
559         float d = sqrt(pard*pard+perpd*perpd);
560         float adiff = measure.get_angle_difference()*180/M_PI;
561         string info = format("Par %.1fmm - Perp %.1fmm - Total %.1fmm - Angle %.1f°", pard, perpd, d, adiff);
562         lbl_status->set_text(info);
563 }
564
565 void Designer::measure_done()
566 {
567         mode = SELECT;
568         selection_changed();
569 }
570
571 void Designer::arrange_toolbars()
572 {
573         unsigned x = 0;
574         for(vector<Toolbar *>::iterator i=toolbars.begin(); i!=toolbars.end(); ++i)
575         {
576                 const GLtk::Geometry &geom = (*i)->get_geometry();
577                 (*i)->set_position(x, window.get_height()-geom.h);
578                 x += geom.w;
579         }
580 }
581
582 void Designer::track_properties_response(int)
583 {
584         const set<Track *> &tracks = selection.get_tracks();
585         for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
586                 update_track_icon(layout_3d->get_track(**i));
587 }
588
589 void Designer::route_name_accept(const string &text)
590 {
591         if(cur_route)
592                 cur_route->set_name(text);
593 }
594
595 void Designer::svg_export_accept(const string &text)
596 {
597         SvgExporter svg_exp(*layout);
598         svg_exp.save(text);
599 }
600
601 string Designer::tooltip(int x, int y)
602 {
603         if(Track3D *t3d = pick_track(x, y))
604         {
605                 const Track &track = t3d->get_track();
606                 const TrackType &ttype = track.get_type();
607                 string info = format("%d %s", ttype.get_article_number(), ttype.get_description());
608                 if(mode!=CATALOGUE && abs(track.get_slope())>1e-4)
609                         info += format(" (slope %.1f%%)", abs(track.get_slope()/ttype.get_total_length()*100));
610                 if(track.get_turnout_id())
611                         info += format(" (turnout %d)", track.get_turnout_id());
612                 else if(track.get_sensor_id())
613                         info += format(" (sensor %d)", track.get_sensor_id());
614
615                 return info;
616         }
617
618         return string();
619 }
620
621 void Designer::show_route(const Route *route)
622 {
623         const set<Track *> &ltracks = layout->get_tracks();
624         for(set<Track *>::iterator i=ltracks.begin(); i!=ltracks.end(); ++i)
625         {
626                 Track3D &t3d = layout_3d->get_track(**i);
627                 if(route && route->has_track(**i))
628                 {
629                         t3d.get_path().set_color(GL::Color(0.5, 0.8, 1.0));
630                         if((*i)->get_type().is_turnout())
631                         {
632                                 unsigned tid = (*i)->get_turnout_id();
633                                 int path = (tid ? route->get_turnout(tid) : -1);
634                                 if(path>=0)
635                                         t3d.get_path().set_path(path);
636                                 else
637                                         t3d.get_path().set_mask((*i)->get_type().get_paths());
638                         }
639                         else
640                                 t3d.get_path().set_path(0);
641                 }
642                 else
643                         t3d.get_path().set_mask(0);
644         }
645 }