gtk2_ardour/editor_tempodisplay.cc

   1 /*
   2     Copyright (C) 2002 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #include <cstdio> // for sprintf, grrr
  21 #include <cstdlib>
  22 #include <cmath>
  23 #include <string>
  24 #include <climits>
  25
  26 #include <libgnomecanvasmm.h>
  27
  28 #include "pbd/error.h"
  29 #include "pbd/memento_command.h"
  30
  31 #include <gtkmm2ext/utils.h>
  32 #include <gtkmm2ext/gtk_ui.h>
  33
  34 #include "ardour/session.h"
  35 #include "ardour/tempo.h"
  36 #include <gtkmm2ext/doi.h>
  37 #include <gtkmm2ext/utils.h>
  38
  39 #include "editor.h"
  40 #include "marker.h"
  41 #include "simpleline.h"
  42 #include "tempo_dialog.h"
  43 #include "rgb_macros.h"
  44 #include "gui_thread.h"
  45 #include "time_axis_view.h"
  46 #include "ardour_ui.h"
  47 #include "tempo_lines.h"
  48
  49 #include "i18n.h"
  50
  51 using namespace std;
  52 using namespace ARDOUR;
  53 using namespace PBD;
  54 using namespace Gtk;
  55 using namespace Gtkmm2ext;
  56 using namespace Editing;
  57
  58 void
  59 Editor::remove_metric_marks ()
  60 {
  61         /* don't delete these while handling events, just punt till the GUI is idle */
  62
  63         for (Marks::iterator x = metric_marks.begin(); x != metric_marks.end(); ++x) {
  64                 delete_when_idle (*x);
  65         }
  66         metric_marks.clear ();
  67 }
  68
  69 void
  70 Editor::draw_metric_marks (const Metrics& metrics)
  71 {
  72
  73         const MeterSection *ms;
  74         const TempoSection *ts;
  75         char buf[64];
  76
  77         remove_metric_marks ();
  78
  79         for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
  80
  81                 if ((ms = dynamic_cast<const MeterSection*>(*i)) != 0) {
  82                         snprintf (buf, sizeof(buf), "%g/%g", ms->beats_per_bar(), ms->note_divisor ());
  83                         metric_marks.push_back (new MeterMarker (*this, *meter_group, ARDOUR_UI::config()->canvasvar_MeterMarker.get(), buf,
  84                                                                  *(const_cast<MeterSection*>(ms))));
  85                 } else if ((ts = dynamic_cast<const TempoSection*>(*i)) != 0) {
  86                         snprintf (buf, sizeof (buf), "%.2f", ts->beats_per_minute());
  87                         metric_marks.push_back (new TempoMarker (*this, *tempo_group, ARDOUR_UI::config()->canvasvar_TempoMarker.get(), buf,
  88                                                                  *(const_cast<TempoSection*>(ts))));
  89                 }
  90
  91         }
  92
  93 }
  94
  95 void
  96 Editor::tempo_map_changed (const PropertyChange& ignored)
  97 {
  98         if (!_session) {
  99                 return;
 100         }
 101
 102         ENSURE_GUI_THREAD (*this, &Editor::tempo_map_changed, ignored);
 103
 104         if (tempo_lines) {
 105                 tempo_lines->tempo_map_changed();
 106         }
 107
 108         compute_current_bbt_points(leftmost_frame, leftmost_frame + current_page_frames());
 109         _session->tempo_map().apply_with_metrics (*this, &Editor::draw_metric_marks); // redraw metric markers
 110         redraw_measures ();
 111 }
 112
 113 void
 114 Editor::redisplay_tempo (bool immediate_redraw)
 115 {
 116         if (!_session) {
 117                 return;
 118         }
 119
 120         compute_current_bbt_points (leftmost_frame, leftmost_frame + current_page_frames()); // redraw rulers and measures
 121
 122         compute_current_bbt_points (leftmost_frame, leftmost_frame + current_page_frames());
 123         if (immediate_redraw) {
 124                 redraw_measures ();
 125         } else {
 126 #ifdef GTKOSX
 127                 redraw_measures ();
 128 #else
 129                 Glib::signal_idle().connect (sigc::mem_fun (*this, &Editor::redraw_measures));
 130 #endif
 131         }
 132         update_tempo_based_rulers (); // redraw rulers and measures
 133 }
 134
 135 void
 136 Editor::compute_current_bbt_points (nframes_t leftmost, nframes_t rightmost)
 137 {
 138         if (!_session) {
 139                 return;
 140         }
 141
 142         BBT_Time previous_beat, next_beat; // the beats previous to the leftmost frame and after the rightmost frame
 143
 144         _session->bbt_time(leftmost, previous_beat);
 145         _session->bbt_time(rightmost, next_beat);
 146
 147         if (previous_beat.beats > 1) {
 148                 previous_beat.beats -= 1;
 149         } else if (previous_beat.bars > 1) {
 150                 previous_beat.bars--;
 151                 previous_beat.beats += 1;
 152         }
 153         previous_beat.ticks = 0;
 154
 155         if (_session->tempo_map().meter_at(rightmost).beats_per_bar () > next_beat.beats + 1) {
 156                 next_beat.beats += 1;
 157         } else {
 158                 next_beat.bars += 1;
 159                 next_beat.beats = 1;
 160         }
 161         next_beat.ticks = 0;
 162
 163         delete current_bbt_points;
 164         current_bbt_points = 0;
 165
 166         current_bbt_points = _session->tempo_map().get_points (_session->tempo_map().frame_time (previous_beat), _session->tempo_map().frame_time (next_beat) + 1);
 167 }
 168
 169 void
 170 Editor::hide_measures ()
 171 {
 172         if (tempo_lines)
 173                 tempo_lines->hide();
 174 }
 175
 176 bool
 177 Editor::redraw_measures ()
 178 {
 179         draw_measures ();
 180         return false;
 181 }
 182
 183 void
 184 Editor::draw_measures ()
 185 {
 186         if (_session == 0 || _show_measures == false ||
 187             !current_bbt_points || current_bbt_points->empty()) {
 188                 return;
 189         }
 190
 191         if (tempo_lines == 0) {
 192                 tempo_lines = new TempoLines(*track_canvas, time_line_group, physical_screen_height);
 193         }
 194
 195         tempo_lines->draw(*current_bbt_points, frames_per_unit);
 196 }
 197
 198 void
 199 Editor::mouse_add_new_tempo_event (nframes64_t frame)
 200 {
 201         if (_session == 0) {
 202                 return;
 203         }
 204
 205         TempoMap& map(_session->tempo_map());
 206         TempoDialog tempo_dialog (map, frame, _("add"));
 207
 208         tempo_dialog.set_position (Gtk::WIN_POS_MOUSE);
 209         //this causes compiz to display no border.
 210         //tempo_dialog.signal_realize().connect (sigc::bind (sigc::ptr_fun (set_decoration), &tempo_dialog, Gdk::WMDecoration (Gdk::DECOR_BORDER|Gdk::DECOR_RESIZEH)));
 211
 212         ensure_float (tempo_dialog);
 213
 214         switch (tempo_dialog.run()) {
 215         case RESPONSE_ACCEPT:
 216                 break;
 217         default:
 218                 return;
 219         }
 220
 221         double bpm = 0;
 222         BBT_Time requested;
 223
 224         bpm = tempo_dialog.get_bpm ();
 225         double nt = tempo_dialog.get_note_type();
 226         bpm = max (0.01, bpm);
 227
 228         tempo_dialog.get_bbt_time (requested);
 229
 230         begin_reversible_command (_("add tempo mark"));
 231         XMLNode &before = map.get_state();
 232         map.add_tempo (Tempo (bpm,nt), requested);
 233         XMLNode &after = map.get_state();
 234         _session->add_command(new MementoCommand<TempoMap>(map, &before, &after));
 235         commit_reversible_command ();
 236
 237         //map.dump (cerr);
 238 }
 239
 240 void
 241 Editor::mouse_add_new_meter_event (nframes64_t frame)
 242 {
 243         if (_session == 0) {
 244                 return;
 245         }
 246
 247
 248         TempoMap& map(_session->tempo_map());
 249         MeterDialog meter_dialog (map, frame, _("add"));
 250
 251         meter_dialog.set_position (Gtk::WIN_POS_MOUSE);
 252
 253         //this causes compiz to display no border..
 254         //meter_dialog.signal_realize().connect (sigc::bind (sigc::ptr_fun (set_decoration), &meter_dialog, Gdk::WMDecoration (Gdk::DECOR_BORDER|Gdk::DECOR_RESIZEH)));
 255
 256         ensure_float (meter_dialog);
 257
 258         switch (meter_dialog.run ()) {
 259         case RESPONSE_ACCEPT:
 260                 break;
 261         default:
 262                 return;
 263         }
 264
 265         double bpb = meter_dialog.get_bpb ();
 266         bpb = max (1.0, bpb); // XXX is this a reasonable limit?
 267
 268         double note_type = meter_dialog.get_note_type ();
 269         BBT_Time requested;
 270
 271         meter_dialog.get_bbt_time (requested);
 272
 273         begin_reversible_command (_("add meter mark"));
 274         XMLNode &before = map.get_state();
 275         map.add_meter (Meter (bpb, note_type), requested);
 276         _session->add_command(new MementoCommand<TempoMap>(map, &before, &map.get_state()));
 277         commit_reversible_command ();
 278
 279         //map.dump (cerr);
 280 }
 281
 282 void
 283 Editor::remove_tempo_marker (ArdourCanvas::Item* item)
 284 {
 285         Marker* marker;
 286         TempoMarker* tempo_marker;
 287
 288         if ((marker = reinterpret_cast<Marker *> (item->get_data ("marker"))) == 0) {
 289                 fatal << _("programming error: tempo marker canvas item has no marker object pointer!") << endmsg;
 290                 /*NOTREACHED*/
 291         }
 292
 293         if ((tempo_marker = dynamic_cast<TempoMarker*> (marker)) == 0) {
 294                 fatal << _("programming error: marker for tempo is not a tempo marker!") << endmsg;
 295                 /*NOTREACHED*/
 296         }
 297
 298         if (tempo_marker->tempo().movable()) {
 299           Glib::signal_idle().connect (sigc::bind (sigc::mem_fun(*this, &Editor::real_remove_tempo_marker), &tempo_marker->tempo()));
 300         }
 301 }
 302
 303 void
 304 Editor::edit_meter_section (MeterSection* section)
 305 {
 306         MeterDialog meter_dialog (*section, _("done"));
 307
 308         meter_dialog.set_position (Gtk::WIN_POS_MOUSE);
 309
 310         ensure_float (meter_dialog);
 311
 312         switch (meter_dialog.run()) {
 313         case RESPONSE_ACCEPT:
 314                 break;
 315         default:
 316                 return;
 317         }
 318
 319         double bpb = meter_dialog.get_bpb ();
 320         bpb = max (1.0, bpb); // XXX is this a reasonable limit?
 321
 322         double note_type = meter_dialog.get_note_type ();
 323
 324         begin_reversible_command (_("replace tempo mark"));
 325         XMLNode &before = _session->tempo_map().get_state();
 326         _session->tempo_map().replace_meter (*section, Meter (bpb, note_type));
 327         XMLNode &after = _session->tempo_map().get_state();
 328         _session->add_command(new MementoCommand<TempoMap>(_session->tempo_map(), &before, &after));
 329         commit_reversible_command ();
 330 }
 331
 332 void
 333 Editor::edit_tempo_section (TempoSection* section)
 334 {
 335         TempoDialog tempo_dialog (*section, _("done"));
 336
 337         tempo_dialog.set_position (Gtk::WIN_POS_MOUSE);
 338
 339         ensure_float (tempo_dialog);
 340
 341         switch (tempo_dialog.run ()) {
 342         case RESPONSE_ACCEPT:
 343                 break;
 344         default:
 345                 return;
 346         }
 347
 348         double bpm = tempo_dialog.get_bpm ();
 349         double nt = tempo_dialog.get_note_type ();
 350         BBT_Time when;
 351         tempo_dialog.get_bbt_time(when);
 352         bpm = max (0.01, bpm);
 353
 354         cerr << "Editing tempo section to be at " << when << endl;
 355         _session->tempo_map().dump (cerr);
 356         begin_reversible_command (_("replace tempo mark"));
 357         XMLNode &before = _session->tempo_map().get_state();
 358         _session->tempo_map().replace_tempo (*section, Tempo (bpm,nt));
 359         _session->tempo_map().dump (cerr);
 360         _session->tempo_map().move_tempo (*section, when);
 361         _session->tempo_map().dump (cerr);
 362         XMLNode &after = _session->tempo_map().get_state();
 363         _session->add_command (new MementoCommand<TempoMap>(_session->tempo_map(), &before, &after));
 364         commit_reversible_command ();
 365 }
 366
 367 void
 368 Editor::edit_tempo_marker (ArdourCanvas::Item *item)
 369 {
 370         Marker* marker;
 371         TempoMarker* tempo_marker;
 372
 373         if ((marker = reinterpret_cast<Marker *> (item->get_data ("marker"))) == 0) {
 374                 fatal << _("programming error: tempo marker canvas item has no marker object pointer!") << endmsg;
 375                 /*NOTREACHED*/
 376         }
 377
 378         if ((tempo_marker = dynamic_cast<TempoMarker*> (marker)) == 0) {
 379                 fatal << _("programming error: marker for tempo is not a tempo marker!") << endmsg;
 380                 /*NOTREACHED*/
 381         }
 382
 383         edit_tempo_section (&tempo_marker->tempo());
 384 }
 385
 386 void
 387 Editor::edit_meter_marker (ArdourCanvas::Item *item)
 388 {
 389         Marker* marker;
 390         MeterMarker* meter_marker;
 391
 392         if ((marker = reinterpret_cast<Marker *> (item->get_data ("marker"))) == 0) {
 393                 fatal << _("programming error: tempo marker canvas item has no marker object pointer!") << endmsg;
 394                 /*NOTREACHED*/
 395         }
 396
 397         if ((meter_marker = dynamic_cast<MeterMarker*> (marker)) == 0) {
 398                 fatal << _("programming error: marker for meter is not a meter marker!") << endmsg;
 399                 /*NOTREACHED*/
 400         }
 401
 402         edit_meter_section (&meter_marker->meter());
 403 }
 404
 405 gint
 406 Editor::real_remove_tempo_marker (TempoSection *section)
 407 {
 408         begin_reversible_command (_("remove tempo mark"));
 409         XMLNode &before = _session->tempo_map().get_state();
 410         _session->tempo_map().remove_tempo (*section);
 411         XMLNode &after = _session->tempo_map().get_state();
 412         _session->add_command(new MementoCommand<TempoMap>(_session->tempo_map(), &before, &after));
 413         commit_reversible_command ();
 414
 415         return FALSE;
 416 }
 417
 418 void
 419 Editor::remove_meter_marker (ArdourCanvas::Item* item)
 420 {
 421         Marker* marker;
 422         MeterMarker* meter_marker;
 423
 424         if ((marker = reinterpret_cast<Marker *> (item->get_data ("marker"))) == 0) {
 425                 fatal << _("programming error: meter marker canvas item has no marker object pointer!") << endmsg;
 426                 /*NOTREACHED*/
 427         }
 428
 429         if ((meter_marker = dynamic_cast<MeterMarker*> (marker)) == 0) {
 430                 fatal << _("programming error: marker for meter is not a meter marker!") << endmsg;
 431                 /*NOTREACHED*/
 432         }
 433
 434         if (meter_marker->meter().movable()) {
 435           Glib::signal_idle().connect (sigc::bind (sigc::mem_fun(*this, &Editor::real_remove_meter_marker), &meter_marker->meter()));
 436         }
 437 }
 438
 439 gint
 440 Editor::real_remove_meter_marker (MeterSection *section)
 441 {
 442         begin_reversible_command (_("remove tempo mark"));
 443         XMLNode &before = _session->tempo_map().get_state();
 444         _session->tempo_map().remove_meter (*section);
 445         XMLNode &after = _session->tempo_map().get_state();
 446         _session->add_command(new MementoCommand<TempoMap>(_session->tempo_map(), &before, &after));
 447         commit_reversible_command ();
 448
 449         return FALSE;
 450 }