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 "ardour_ui.h"
  46 #include "time_axis_view.h"
  47 #include "tempo_lines.h"
  48
  49 #include "i18n.h"
  50
  51 using namespace std;
  52 using namespace sigc;
  53 using namespace ARDOUR;
  54 using namespace PBD;
  55 using namespace Gtk;
  56 using namespace Gtkmm2ext;
  57 using namespace Editing;
  58
  59 void
  60 Editor::remove_metric_marks ()
  61 {
  62         /* don't delete these while handling events, just punt till the GUI is idle */
  63
  64         for (Marks::iterator x = metric_marks.begin(); x != metric_marks.end(); ++x) {
  65                 delete_when_idle (*x);
  66         }
  67         metric_marks.clear ();
  68 }
  69
  70 void
  71 Editor::draw_metric_marks (const Metrics& metrics)
  72 {
  73
  74         const MeterSection *ms;
  75         const TempoSection *ts;
  76         char buf[64];
  77
  78         remove_metric_marks ();
  79
  80         for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
  81
  82                 if ((ms = dynamic_cast<const MeterSection*>(*i)) != 0) {
  83                         snprintf (buf, sizeof(buf), "%g/%g", ms->beats_per_bar(), ms->note_divisor ());
  84                         metric_marks.push_back (new MeterMarker (*this, *meter_group, ARDOUR_UI::config()->canvasvar_MeterMarker.get(), buf,
  85                                                                  *(const_cast<MeterSection*>(ms))));
  86                 } else if ((ts = dynamic_cast<const TempoSection*>(*i)) != 0) {
  87                         snprintf (buf, sizeof (buf), "%.2f", ts->beats_per_minute());
  88                         metric_marks.push_back (new TempoMarker (*this, *tempo_group, ARDOUR_UI::config()->canvasvar_TempoMarker.get(), buf,
  89                                                                  *(const_cast<TempoSection*>(ts))));
  90                 }
  91
  92         }
  93
  94 }
  95
  96 void
  97 Editor::tempo_map_changed (Change ignored)
  98 {
  99         if (!session) {
 100                 return;
 101         }
 102
 103         ENSURE_GUI_THREAD(bind (mem_fun (*this, &Editor::tempo_map_changed), ignored));
 104
 105         if (tempo_lines) {
 106                 tempo_lines->tempo_map_changed();
 107         }
 108
 109         compute_current_bbt_points(leftmost_frame, leftmost_frame + current_page_frames());
 110         session->tempo_map().apply_with_metrics (*this, &Editor::draw_metric_marks); // redraw metric markers
 111         redraw_measures ();
 112         update_tempo_based_rulers ();
 113 }
 114
 115 /**
 116  * This code was originally in tempo_map_changed, but this is called every time the canvas scrolls horizontally.
 117  * That's why this is moved in here. The new tempo_map_changed is called when the ARDOUR::TempoMap actually changed.
 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());
 127         if (immediate_redraw) {
 128                 redraw_measures ();
 129         } else {
 130 #ifdef GTKOSX
 131                 redraw_measures ();
 132 #else
 133                 Glib::signal_idle().connect (mem_fun (*this, &Editor::redraw_measures));
 134 #endif
 135         }
 136         update_tempo_based_rulers (); // redraw rulers and measures
 137 }
 138
 139 void
 140 Editor::compute_current_bbt_points (nframes_t leftmost, nframes_t rightmost)
 141 {
 142         if (!session) {
 143                 return;
 144         }
 145
 146         BBT_Time previous_beat, next_beat; // the beats previous to the leftmost frame and after the rightmost frame
 147
 148         session->bbt_time(leftmost, previous_beat);
 149         session->bbt_time(rightmost, next_beat);
 150
 151         if (previous_beat.beats > 1) {
 152                 previous_beat.beats -= 1;
 153         } else if (previous_beat.bars > 1) {
 154                 previous_beat.bars--;
 155                 previous_beat.beats += 1;
 156         }
 157         previous_beat.ticks = 0;
 158
 159         if (session->tempo_map().meter_at(rightmost).beats_per_bar () > next_beat.beats + 1) {
 160                 next_beat.beats += 1;
 161         } else {
 162                 next_beat.bars += 1;
 163                 next_beat.beats = 1;
 164         }
 165         next_beat.ticks = 0;
 166
 167         if (current_bbt_points) {
 168                 delete current_bbt_points;
 169                 current_bbt_points = 0;
 170         }
 171
 172         current_bbt_points = session->tempo_map().get_points (session->tempo_map().frame_time (previous_beat), session->tempo_map().frame_time (next_beat) + 1);
 173 }
 174
 175 void
 176 Editor::hide_measures ()
 177 {
 178         if (tempo_lines) {
 179                 tempo_lines->hide();
 180         }
 181 }
 182
 183 bool
 184 Editor::redraw_measures ()
 185 {
 186         draw_measures ();
 187         return false;
 188 }
 189
 190 void
 191 Editor::draw_measures ()
 192 {
 193         if (session == 0 || _show_measures == false ||
 194             !current_bbt_points || current_bbt_points->empty()) {
 195                 return;
 196         }
 197
 198         if (tempo_lines == 0) {
 199                 tempo_lines = new TempoLines(*track_canvas, time_line_group, physical_screen_height);
 200         }
 201
 202         tempo_lines->draw(*current_bbt_points, frames_per_unit);
 203 }
 204
 205 void
 206 Editor::mouse_add_new_tempo_event (nframes64_t frame)
 207 {
 208         if (session == 0) {
 209                 return;
 210         }
 211
 212         TempoMap& map(session->tempo_map());
 213         TempoDialog tempo_dialog (map, frame, _("add"));
 214
 215         tempo_dialog.set_position (Gtk::WIN_POS_MOUSE);
 216         //this causes compiz to display no border.
 217         //tempo_dialog.signal_realize().connect (bind (sigc::ptr_fun (set_decoration), &tempo_dialog, Gdk::WMDecoration (Gdk::DECOR_BORDER|Gdk::DECOR_RESIZEH)));
 218
 219         ensure_float (tempo_dialog);
 220
 221         switch (tempo_dialog.run()) {
 222         case RESPONSE_ACCEPT:
 223                 break;
 224         default:
 225                 return;
 226         }
 227
 228         double bpm = 0;
 229         BBT_Time requested;
 230
 231         bpm = tempo_dialog.get_bpm ();
 232         double nt = tempo_dialog.get_note_type();
 233         bpm = max (0.01, bpm);
 234
 235         tempo_dialog.get_bbt_time (requested);
 236
 237         begin_reversible_command (_("add tempo mark"));
 238         XMLNode &before = map.get_state();
 239         map.add_tempo (Tempo (bpm,nt), requested);
 240         XMLNode &after = map.get_state();
 241         session->add_command(new MementoCommand<TempoMap>(map, &before, &after));
 242         commit_reversible_command ();
 243
 244         //map.dump (cerr);
 245 }
 246
 247 void
 248 Editor::mouse_add_new_meter_event (nframes64_t frame)
 249 {
 250         if (session == 0) {
 251                 return;
 252         }
 253
 254
 255         TempoMap& map(session->tempo_map());
 256         MeterDialog meter_dialog (map, frame, _("add"));
 257
 258         meter_dialog.set_position (Gtk::WIN_POS_MOUSE);
 259
 260         //this causes compiz to display no border..
 261         //meter_dialog.signal_realize().connect (bind (sigc::ptr_fun (set_decoration), &meter_dialog, Gdk::WMDecoration (Gdk::DECOR_BORDER|Gdk::DECOR_RESIZEH)));
 262
 263         ensure_float (meter_dialog);
 264
 265         switch (meter_dialog.run ()) {
 266         case RESPONSE_ACCEPT:
 267                 break;
 268         default:
 269                 return;
 270         }
 271
 272         double bpb = meter_dialog.get_bpb ();
 273         bpb = max (1.0, bpb); // XXX is this a reasonable limit?
 274
 275         double note_type = meter_dialog.get_note_type ();
 276         BBT_Time requested;
 277
 278         meter_dialog.get_bbt_time (requested);
 279
 280         begin_reversible_command (_("add meter mark"));
 281         XMLNode &before = map.get_state();
 282         map.add_meter (Meter (bpb, note_type), requested);
 283         session->add_command(new MementoCommand<TempoMap>(map, &before, &map.get_state()));
 284         commit_reversible_command ();
 285
 286         //map.dump (cerr);
 287 }
 288
 289 void
 290 Editor::remove_tempo_marker (ArdourCanvas::Item* item)
 291 {
 292         Marker* marker;
 293         TempoMarker* tempo_marker;
 294
 295         if ((marker = reinterpret_cast<Marker *> (item->get_data ("marker"))) == 0) {
 296                 fatal << _("programming error: tempo marker canvas item has no marker object pointer!") << endmsg;
 297                 /*NOTREACHED*/
 298         }
 299
 300         if ((tempo_marker = dynamic_cast<TempoMarker*> (marker)) == 0) {
 301                 fatal << _("programming error: marker for tempo is not a tempo marker!") << endmsg;
 302                 /*NOTREACHED*/
 303         }
 304
 305         if (tempo_marker->tempo().movable()) {
 306           Glib::signal_idle().connect (bind (mem_fun(*this, &Editor::real_remove_tempo_marker), &tempo_marker->tempo()));
 307         }
 308 }
 309
 310 void
 311 Editor::edit_meter_section (MeterSection* section)
 312 {
 313         MeterDialog meter_dialog (*section, _("done"));
 314
 315         meter_dialog.set_position (Gtk::WIN_POS_MOUSE);
 316
 317         ensure_float (meter_dialog);
 318
 319         switch (meter_dialog.run()) {
 320         case RESPONSE_ACCEPT:
 321                 break;
 322         default:
 323                 return;
 324         }
 325
 326         double bpb = meter_dialog.get_bpb ();
 327         bpb = max (1.0, bpb); // XXX is this a reasonable limit?
 328
 329         double note_type = meter_dialog.get_note_type ();
 330
 331         begin_reversible_command (_("replace tempo mark"));
 332         XMLNode &before = session->tempo_map().get_state();
 333         session->tempo_map().replace_meter (*section, Meter (bpb, note_type));
 334         XMLNode &after = session->tempo_map().get_state();
 335         session->add_command(new MementoCommand<TempoMap>(session->tempo_map(), &before, &after));
 336         commit_reversible_command ();
 337 }
 338
 339 void
 340 Editor::edit_tempo_section (TempoSection* section)
 341 {
 342         TempoDialog tempo_dialog (*section, _("done"));
 343
 344         tempo_dialog.set_position (Gtk::WIN_POS_MOUSE);
 345
 346         ensure_float (tempo_dialog);
 347
 348         switch (tempo_dialog.run ()) {
 349         case RESPONSE_ACCEPT:
 350                 break;
 351         default:
 352                 return;
 353         }
 354
 355         double bpm = tempo_dialog.get_bpm ();
 356         double nt = tempo_dialog.get_note_type ();
 357         BBT_Time when;
 358         tempo_dialog.get_bbt_time(when);
 359         bpm = max (0.01, bpm);
 360
 361         cerr << "Editing tempo section to be at " << when << endl;
 362         session->tempo_map().dump (cerr);
 363         begin_reversible_command (_("replace tempo mark"));
 364         XMLNode &before = session->tempo_map().get_state();
 365         session->tempo_map().replace_tempo (*section, Tempo (bpm,nt));
 366         session->tempo_map().dump (cerr);
 367         session->tempo_map().move_tempo (*section, when);
 368         session->tempo_map().dump (cerr);
 369         XMLNode &after = session->tempo_map().get_state();
 370         session->add_command (new MementoCommand<TempoMap>(session->tempo_map(), &before, &after));
 371         commit_reversible_command ();
 372 }
 373
 374 void
 375 Editor::edit_tempo_marker (ArdourCanvas::Item *item)
 376 {
 377         Marker* marker;
 378         TempoMarker* tempo_marker;
 379
 380         if ((marker = reinterpret_cast<Marker *> (item->get_data ("marker"))) == 0) {
 381                 fatal << _("programming error: tempo marker canvas item has no marker object pointer!") << endmsg;
 382                 /*NOTREACHED*/
 383         }
 384
 385         if ((tempo_marker = dynamic_cast<TempoMarker*> (marker)) == 0) {
 386                 fatal << _("programming error: marker for tempo is not a tempo marker!") << endmsg;
 387                 /*NOTREACHED*/
 388         }
 389
 390         edit_tempo_section (&tempo_marker->tempo());
 391 }
 392
 393 void
 394 Editor::edit_meter_marker (ArdourCanvas::Item *item)
 395 {
 396         Marker* marker;
 397         MeterMarker* meter_marker;
 398
 399         if ((marker = reinterpret_cast<Marker *> (item->get_data ("marker"))) == 0) {
 400                 fatal << _("programming error: tempo marker canvas item has no marker object pointer!") << endmsg;
 401                 /*NOTREACHED*/
 402         }
 403
 404         if ((meter_marker = dynamic_cast<MeterMarker*> (marker)) == 0) {
 405                 fatal << _("programming error: marker for meter is not a meter marker!") << endmsg;
 406                 /*NOTREACHED*/
 407         }
 408
 409         edit_meter_section (&meter_marker->meter());
 410 }
 411
 412 gint
 413 Editor::real_remove_tempo_marker (TempoSection *section)
 414 {
 415         begin_reversible_command (_("remove tempo mark"));
 416         XMLNode &before = session->tempo_map().get_state();
 417         session->tempo_map().remove_tempo (*section);
 418         XMLNode &after = session->tempo_map().get_state();
 419         session->add_command(new MementoCommand<TempoMap>(session->tempo_map(), &before, &after));
 420         commit_reversible_command ();
 421
 422         return FALSE;
 423 }
 424
 425 void
 426 Editor::remove_meter_marker (ArdourCanvas::Item* item)
 427 {
 428         Marker* marker;
 429         MeterMarker* meter_marker;
 430
 431         if ((marker = reinterpret_cast<Marker *> (item->get_data ("marker"))) == 0) {
 432                 fatal << _("programming error: meter marker canvas item has no marker object pointer!") << endmsg;
 433                 /*NOTREACHED*/
 434         }
 435
 436         if ((meter_marker = dynamic_cast<MeterMarker*> (marker)) == 0) {
 437                 fatal << _("programming error: marker for meter is not a meter marker!") << endmsg;
 438                 /*NOTREACHED*/
 439         }
 440
 441         if (meter_marker->meter().movable()) {
 442           Glib::signal_idle().connect (bind (mem_fun(*this, &Editor::real_remove_meter_marker), &meter_marker->meter()));
 443         }
 444 }
 445
 446 gint
 447 Editor::real_remove_meter_marker (MeterSection *section)
 448 {
 449         begin_reversible_command (_("remove tempo mark"));
 450         XMLNode &before = session->tempo_map().get_state();
 451         session->tempo_map().remove_meter (*section);
 452         XMLNode &after = session->tempo_map().get_state();
 453         session->add_command(new MementoCommand<TempoMap>(session->tempo_map(), &before, &after));
 454         commit_reversible_command ();
 455
 456         return FALSE;
 457 }