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 #ifdef WAF_BUILD
  21 #include "gtk2ardour-config.h"
  22 #endif
  23
  24 #include <cstdio> // for sprintf, grrr
  25 #include <cstdlib>
  26 #include <cmath>
  27 #include <string>
  28 #include <climits>
  29
  30 #include <libgnomecanvasmm.h>
  31
  32 #include "pbd/error.h"
  33 #include "pbd/memento_command.h"
  34
  35 #include <gtkmm2ext/utils.h>
  36 #include <gtkmm2ext/gtk_ui.h>
  37
  38 #include "ardour/session.h"
  39 #include "ardour/tempo.h"
  40 #include <gtkmm2ext/doi.h>
  41 #include <gtkmm2ext/utils.h>
  42
  43 #include "editor.h"
  44 #include "marker.h"
  45 #include "simpleline.h"
  46 #include "tempo_dialog.h"
  47 #include "rgb_macros.h"
  48 #include "gui_thread.h"
  49 #include "time_axis_view.h"
  50 #include "ardour_ui.h"
  51 #include "tempo_lines.h"
  52 #include "utils.h"
  53
  54 #include "i18n.h"
  55
  56 using namespace std;
  57 using namespace ARDOUR;
  58 using namespace PBD;
  59 using namespace Gtk;
  60 using namespace Gtkmm2ext;
  61 using namespace Editing;
  62
  63 void
  64 Editor::remove_metric_marks ()
  65 {
  66         /* don't delete these while handling events, just punt till the GUI is idle */
  67
  68         for (Marks::iterator x = metric_marks.begin(); x != metric_marks.end(); ++x) {
  69                 delete_when_idle (*x);
  70         }
  71         metric_marks.clear ();
  72 }
  73
  74 void
  75 Editor::draw_metric_marks (const Metrics& metrics)
  76 {
  77
  78         const MeterSection *ms;
  79         const TempoSection *ts;
  80         char buf[64];
  81
  82         remove_metric_marks ();
  83
  84         for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
  85
  86                 if ((ms = dynamic_cast<const MeterSection*>(*i)) != 0) {
  87                         snprintf (buf, sizeof(buf), "%g/%g", ms->beats_per_bar(), ms->note_divisor ());
  88                         metric_marks.push_back (new MeterMarker (*this, *meter_group, ARDOUR_UI::config()->canvasvar_MeterMarker.get(), buf,
  89                                                                  *(const_cast<MeterSection*>(ms))));
  90                 } else if ((ts = dynamic_cast<const TempoSection*>(*i)) != 0) {
  91                         snprintf (buf, sizeof (buf), "%.2f", ts->beats_per_minute());
  92                         metric_marks.push_back (new TempoMarker (*this, *tempo_group, ARDOUR_UI::config()->canvasvar_TempoMarker.get(), buf,
  93                                                                  *(const_cast<TempoSection*>(ts))));
  94                 }
  95
  96         }
  97
  98 }
  99
 100 void
 101 Editor::tempo_map_changed (const PropertyChange& /*ignored*/)
 102 {
 103         if (!_session) {
 104                 return;
 105         }
 106
 107         ENSURE_GUI_THREAD (*this, &Editor::tempo_map_changed, ignored);
 108
 109         if (tempo_lines) {
 110                 tempo_lines->tempo_map_changed();
 111         }
 112
 113         compute_current_bbt_points(leftmost_frame, leftmost_frame + current_page_frames());
 114         _session->tempo_map().apply_with_metrics (*this, &Editor::draw_metric_marks); // redraw metric markers
 115         redraw_measures ();
 116         update_tempo_based_rulers ();
 117 }
 118
 119 void
 120 Editor::redisplay_tempo (bool immediate_redraw)
 121 {
 122         if (!_session) {
 123                 return;
 124         }
 125
 126         compute_current_bbt_points (leftmost_frame, leftmost_frame + current_page_frames()); // redraw rulers and measures
 127
 128         if (immediate_redraw) {
 129                 redraw_measures ();
 130         } else {
 131 #ifdef GTKOSX
 132                 redraw_measures ();
 133 #else
 134                 Glib::signal_idle().connect (sigc::mem_fun (*this, &Editor::redraw_measures));
 135 #endif
 136         }
 137         update_tempo_based_rulers (); // redraw rulers and measures
 138 }
 139
 140 void
 141 Editor::compute_current_bbt_points (framepos_t leftmost, framepos_t rightmost)
 142 {
 143         if (!_session) {
 144                 return;
 145         }
 146
 147         Timecode::BBT_Time previous_beat, next_beat; // the beats previous to the leftmost frame and after the rightmost frame
 148
 149         _session->bbt_time(leftmost, previous_beat);
 150         _session->bbt_time(rightmost, next_beat);
 151
 152         if (previous_beat.beats > 1) {
 153                 previous_beat.beats -= 1;
 154         } else if (previous_beat.bars > 1) {
 155                 previous_beat.bars--;
 156                 previous_beat.beats += 1;
 157         }
 158         previous_beat.ticks = 0;
 159
 160         if (_session->tempo_map().meter_at(rightmost).beats_per_bar () > next_beat.beats + 1) {
 161                 next_beat.beats += 1;
 162         } else {
 163                 next_beat.bars += 1;
 164                 next_beat.beats = 1;
 165         }
 166         next_beat.ticks = 0;
 167
 168         delete current_bbt_points;
 169         current_bbt_points = 0;
 170
 171         current_bbt_points = _session->tempo_map().get_points (_session->tempo_map().frame_time (previous_beat), _session->tempo_map().frame_time (next_beat) + 1);
 172 }
 173
 174 void
 175 Editor::hide_measures ()
 176 {
 177         if (tempo_lines)
 178                 tempo_lines->hide();
 179 }
 180
 181 bool
 182 Editor::redraw_measures ()
 183 {
 184         draw_measures ();
 185         return false;
 186 }
 187
 188 void
 189 Editor::draw_measures ()
 190 {
 191         if (_session == 0 || _show_measures == false ||
 192             !current_bbt_points || current_bbt_points->empty()) {
 193                 return;
 194         }
 195
 196         if (tempo_lines == 0) {
 197                 tempo_lines = new TempoLines(*track_canvas, time_line_group, physical_screen_height(get_window()));
 198         }
 199
 200         tempo_lines->draw(*current_bbt_points, frames_per_unit);
 201 }
 202
 203 void
 204 Editor::mouse_add_new_tempo_event (framepos_t frame)
 205 {
 206         if (_session == 0) {
 207                 return;
 208         }
 209
 210         TempoMap& map(_session->tempo_map());
 211         TempoDialog tempo_dialog (map, frame, _("add"));
 212
 213         tempo_dialog.set_position (Gtk::WIN_POS_MOUSE);
 214         //this causes compiz to display no border.
 215         //tempo_dialog.signal_realize().connect (sigc::bind (sigc::ptr_fun (set_decoration), &tempo_dialog, Gdk::WMDecoration (Gdk::DECOR_BORDER|Gdk::DECOR_RESIZEH)));
 216
 217         ensure_float (tempo_dialog);
 218
 219         switch (tempo_dialog.run()) {
 220         case RESPONSE_ACCEPT:
 221                 break;
 222         default:
 223                 return;
 224         }
 225
 226         double bpm = 0;
 227         Timecode::BBT_Time requested;
 228
 229         bpm = tempo_dialog.get_bpm ();
 230         double nt = tempo_dialog.get_note_type();
 231         bpm = max (0.01, bpm);
 232
 233         tempo_dialog.get_bbt_time (requested);
 234
 235         begin_reversible_command (_("add tempo mark"));
 236         XMLNode &before = map.get_state();
 237         map.add_tempo (Tempo (bpm,nt), requested);
 238         XMLNode &after = map.get_state();
 239         _session->add_command(new MementoCommand<TempoMap>(map, &before, &after));
 240         commit_reversible_command ();
 241
 242         //map.dump (cerr);
 243 }
 244
 245 void
 246 Editor::mouse_add_new_meter_event (framepos_t frame)
 247 {
 248         if (_session == 0) {
 249                 return;
 250         }
 251
 252
 253         TempoMap& map(_session->tempo_map());
 254         MeterDialog meter_dialog (map, frame, _("add"));
 255
 256         meter_dialog.set_position (Gtk::WIN_POS_MOUSE);
 257
 258         //this causes compiz to display no border..
 259         //meter_dialog.signal_realize().connect (sigc::bind (sigc::ptr_fun (set_decoration), &meter_dialog, Gdk::WMDecoration (Gdk::DECOR_BORDER|Gdk::DECOR_RESIZEH)));
 260
 261         ensure_float (meter_dialog);
 262
 263         switch (meter_dialog.run ()) {
 264         case RESPONSE_ACCEPT:
 265                 break;
 266         default:
 267                 return;
 268         }
 269
 270         double bpb = meter_dialog.get_bpb ();
 271         bpb = max (1.0, bpb); // XXX is this a reasonable limit?
 272
 273         double note_type = meter_dialog.get_note_type ();
 274         Timecode::BBT_Time requested;
 275
 276         meter_dialog.get_bbt_time (requested);
 277
 278         begin_reversible_command (_("add meter mark"));
 279         XMLNode &before = map.get_state();
 280         map.add_meter (Meter (bpb, note_type), requested);
 281         _session->add_command(new MementoCommand<TempoMap>(map, &before, &map.get_state()));
 282         commit_reversible_command ();
 283
 284         //map.dump (cerr);
 285 }
 286
 287 void
 288 Editor::remove_tempo_marker (ArdourCanvas::Item* item)
 289 {
 290         Marker* marker;
 291         TempoMarker* tempo_marker;
 292
 293         if ((marker = reinterpret_cast<Marker *> (item->get_data ("marker"))) == 0) {
 294                 fatal << _("programming error: tempo marker canvas item has no marker object pointer!") << endmsg;
 295                 /*NOTREACHED*/
 296         }
 297
 298         if ((tempo_marker = dynamic_cast<TempoMarker*> (marker)) == 0) {
 299                 fatal << _("programming error: marker for tempo is not a tempo marker!") << endmsg;
 300                 /*NOTREACHED*/
 301         }
 302
 303         if (tempo_marker->tempo().movable()) {
 304                 Glib::signal_idle().connect (sigc::bind (sigc::mem_fun(*this, &Editor::real_remove_tempo_marker), &tempo_marker->tempo()));
 305         }
 306 }
 307
 308 void
 309 Editor::edit_meter_section (MeterSection* section)
 310 {
 311         MeterDialog meter_dialog (*section, _("done"));
 312
 313         meter_dialog.set_position (Gtk::WIN_POS_MOUSE);
 314
 315         ensure_float (meter_dialog);
 316
 317         switch (meter_dialog.run()) {
 318         case RESPONSE_ACCEPT:
 319                 break;
 320         default:
 321                 return;
 322         }
 323
 324         double bpb = meter_dialog.get_bpb ();
 325         bpb = max (1.0, bpb); // XXX is this a reasonable limit?
 326
 327         double note_type = meter_dialog.get_note_type ();
 328
 329         begin_reversible_command (_("replace tempo mark"));
 330         XMLNode &before = _session->tempo_map().get_state();
 331         _session->tempo_map().replace_meter (*section, Meter (bpb, note_type));
 332         XMLNode &after = _session->tempo_map().get_state();
 333         _session->add_command(new MementoCommand<TempoMap>(_session->tempo_map(), &before, &after));
 334         commit_reversible_command ();
 335 }
 336
 337 void
 338 Editor::edit_tempo_section (TempoSection* section)
 339 {
 340         TempoDialog tempo_dialog (*section, _("done"));
 341
 342         tempo_dialog.set_position (Gtk::WIN_POS_MOUSE);
 343
 344         ensure_float (tempo_dialog);
 345
 346         switch (tempo_dialog.run ()) {
 347         case RESPONSE_ACCEPT:
 348                 break;
 349         default:
 350                 return;
 351         }
 352
 353         double bpm = tempo_dialog.get_bpm ();
 354         double nt = tempo_dialog.get_note_type ();
 355         Timecode::BBT_Time when;
 356         tempo_dialog.get_bbt_time(when);
 357         bpm = max (0.01, bpm);
 358
 359         cerr << "Editing tempo section to be at " << when << endl;
 360         _session->tempo_map().dump (cerr);
 361         begin_reversible_command (_("replace tempo mark"));
 362         XMLNode &before = _session->tempo_map().get_state();
 363         _session->tempo_map().replace_tempo (*section, Tempo (bpm,nt));
 364         _session->tempo_map().dump (cerr);
 365         _session->tempo_map().move_tempo (*section, when);
 366         _session->tempo_map().dump (cerr);
 367         XMLNode &after = _session->tempo_map().get_state();
 368         _session->add_command (new MementoCommand<TempoMap>(_session->tempo_map(), &before, &after));
 369         commit_reversible_command ();
 370 }
 371
 372 void
 373 Editor::edit_tempo_marker (ArdourCanvas::Item *item)
 374 {
 375         Marker* marker;
 376         TempoMarker* tempo_marker;
 377
 378         if ((marker = reinterpret_cast<Marker *> (item->get_data ("marker"))) == 0) {
 379                 fatal << _("programming error: tempo marker canvas item has no marker object pointer!") << endmsg;
 380                 /*NOTREACHED*/
 381         }
 382
 383         if ((tempo_marker = dynamic_cast<TempoMarker*> (marker)) == 0) {
 384                 fatal << _("programming error: marker for tempo is not a tempo marker!") << endmsg;
 385                 /*NOTREACHED*/
 386         }
 387
 388         edit_tempo_section (&tempo_marker->tempo());
 389 }
 390
 391 void
 392 Editor::edit_meter_marker (ArdourCanvas::Item *item)
 393 {
 394         Marker* marker;
 395         MeterMarker* meter_marker;
 396
 397         if ((marker = reinterpret_cast<Marker *> (item->get_data ("marker"))) == 0) {
 398                 fatal << _("programming error: tempo marker canvas item has no marker object pointer!") << endmsg;
 399                 /*NOTREACHED*/
 400         }
 401
 402         if ((meter_marker = dynamic_cast<MeterMarker*> (marker)) == 0) {
 403                 fatal << _("programming error: marker for meter is not a meter marker!") << endmsg;
 404                 /*NOTREACHED*/
 405         }
 406
 407         edit_meter_section (&meter_marker->meter());
 408 }
 409
 410 gint
 411 Editor::real_remove_tempo_marker (TempoSection *section)
 412 {
 413         begin_reversible_command (_("remove tempo mark"));
 414         XMLNode &before = _session->tempo_map().get_state();
 415         _session->tempo_map().remove_tempo (*section);
 416         XMLNode &after = _session->tempo_map().get_state();
 417         _session->add_command(new MementoCommand<TempoMap>(_session->tempo_map(), &before, &after));
 418         commit_reversible_command ();
 419
 420         return FALSE;
 421 }
 422
 423 void
 424 Editor::remove_meter_marker (ArdourCanvas::Item* item)
 425 {
 426         Marker* marker;
 427         MeterMarker* meter_marker;
 428
 429         if ((marker = reinterpret_cast<Marker *> (item->get_data ("marker"))) == 0) {
 430                 fatal << _("programming error: meter marker canvas item has no marker object pointer!") << endmsg;
 431                 /*NOTREACHED*/
 432         }
 433
 434         if ((meter_marker = dynamic_cast<MeterMarker*> (marker)) == 0) {
 435                 fatal << _("programming error: marker for meter is not a meter marker!") << endmsg;
 436                 /*NOTREACHED*/
 437         }
 438
 439         if (meter_marker->meter().movable()) {
 440           Glib::signal_idle().connect (sigc::bind (sigc::mem_fun(*this, &Editor::real_remove_meter_marker), &meter_marker->meter()));
 441         }
 442 }
 443
 444 gint
 445 Editor::real_remove_meter_marker (MeterSection *section)
 446 {
 447         begin_reversible_command (_("remove tempo mark"));
 448         XMLNode &before = _session->tempo_map().get_state();
 449         _session->tempo_map().remove_meter (*section);
 450         XMLNode &after = _session->tempo_map().get_state();
 451         _session->add_command(new MementoCommand<TempoMap>(_session->tempo_map(), &before, &after));
 452         commit_reversible_command ();
 453
 454         return FALSE;
 455 }