gtk2_ardour/editor_mixer.cc

   1 /*
   2     Copyright (C) 2003-2004 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 <glibmm/miscutils.h>
  21 #include <gtkmm2ext/utils.h>
  22 #include <gtkmm2ext/window_title.h>
  23
  24 #include "pbd/enumwriter.h"
  25
  26 #include "ardour/audioengine.h"
  27 #include "ardour/session.h"
  28
  29 #include "editor.h"
  30 #include "mixer_strip.h"
  31 #include "ardour_ui.h"
  32 #include "selection.h"
  33 #include "audio_time_axis.h"
  34 #include "actions.h"
  35 #include "editor_routes.h"
  36 #include "editor_route_groups.h"
  37 #include "editor_regions.h"
  38 #include "gui_thread.h"
  39 #include "editor_drag.h"
  40
  41 #include "i18n.h"
  42
  43 using namespace std;
  44 using namespace Gtkmm2ext;
  45 using namespace PBD;
  46
  47 void
  48 Editor::editor_mixer_button_toggled ()
  49 {
  50         Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
  51         if (act) {
  52                 Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
  53                 show_editor_mixer (tact->get_active());
  54         }
  55 }
  56
  57 void
  58 Editor::editor_list_button_toggled ()
  59 {
  60         Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-list"));
  61         if (act) {
  62                 Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
  63                 show_editor_list (tact->get_active());
  64         }
  65 }
  66
  67 void
  68 Editor::show_editor_mixer (bool yn)
  69 {
  70         boost::shared_ptr<ARDOUR::Route> r;
  71
  72         show_editor_mixer_when_tracks_arrive = false;
  73
  74         if (!_session) {
  75                 show_editor_mixer_when_tracks_arrive = yn;
  76                 return;
  77         }
  78
  79         if (yn) {
  80
  81                 if (selection->tracks.empty()) {
  82
  83                         if (track_views.empty()) {
  84                                 show_editor_mixer_when_tracks_arrive = true;
  85                                 return;
  86                         }
  87
  88                         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
  89                                 RouteTimeAxisView* atv;
  90
  91                                 if ((atv = dynamic_cast<RouteTimeAxisView*> (*i)) != 0) {
  92                                         r = atv->route();
  93                                         break;
  94                                 }
  95                         }
  96
  97                 } else {
  98                         sort_track_selection ();
  99
 100                         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
 101                                 RouteTimeAxisView* atv;
 102
 103                                 if ((atv = dynamic_cast<RouteTimeAxisView*> (*i)) != 0) {
 104                                         r = atv->route();
 105                                         break;
 106                                 }
 107                         }
 108                 }
 109
 110                 if (r) {
 111                         if (current_mixer_strip == 0) {
 112                                 create_editor_mixer ();
 113                         }
 114
 115                         current_mixer_strip->set_route (r);
 116                         current_mixer_strip->set_width_enum (editor_mixer_strip_width, (void*) this);
 117                 }
 118
 119                 if (current_mixer_strip->get_parent() == 0) {
 120                         global_hpacker.pack_start (*current_mixer_strip, Gtk::PACK_SHRINK );
 121                         global_hpacker.reorder_child (*current_mixer_strip, 0);
 122                         current_mixer_strip->show_all ();
 123                 }
 124
 125         } else {
 126
 127                 if (current_mixer_strip) {
 128                         if (current_mixer_strip->get_parent() != 0) {
 129                                 global_hpacker.remove (*current_mixer_strip);
 130                         }
 131                 }
 132         }
 133
 134 #ifdef GTKOSX
 135         /* XXX gtk problem here */
 136         ensure_all_elements_drawn();
 137 #endif
 138 }
 139
 140 #ifdef GTKOSX
 141 void
 142 Editor::ensure_all_elements_drawn ()
 143 {
 144         controls_layout.queue_draw ();
 145         ruler_label_event_box.queue_draw ();
 146         time_button_event_box.queue_draw ();
 147 }
 148 #endif
 149
 150 void
 151 Editor::show_editor_list (bool yn)
 152 {
 153         if (yn) {
 154                 the_notebook.show();
 155         } else {
 156                 the_notebook.hide();
 157         }
 158 }
 159
 160 void
 161 Editor::create_editor_mixer ()
 162 {
 163         current_mixer_strip = new MixerStrip (*ARDOUR_UI::instance()->the_mixer(),
 164                                               _session,
 165                                               false);
 166         current_mixer_strip->Hiding.connect (sigc::mem_fun(*this, &Editor::current_mixer_strip_hidden));
 167
 168 #ifdef GTKOSX
 169         current_mixer_strip->WidthChanged.connect (sigc::mem_fun(*this, &Editor::ensure_all_elements_drawn));
 170 #endif
 171         current_mixer_strip->set_embedded (true);
 172 }
 173
 174 void
 175 Editor::set_selected_mixer_strip (TimeAxisView& view)
 176 {
 177         RouteTimeAxisView* at;
 178
 179         if (!_session || (at = dynamic_cast<RouteTimeAxisView*>(&view)) == 0) {
 180                 return;
 181         }
 182
 183         Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
 184
 185         if (act) {
 186                 Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
 187                 if (!tact || !tact->get_active()) {
 188                         /* not showing mixer strip presently */
 189                         return;
 190                 }
 191         }
 192
 193         if (current_mixer_strip == 0) {
 194                 create_editor_mixer ();
 195         }
 196
 197         /* might be nothing to do */
 198
 199         if (current_mixer_strip->route() == at->route()) {
 200                 return;
 201         }
 202
 203         current_mixer_strip->set_route (at->route());
 204         current_mixer_strip->set_width_enum (editor_mixer_strip_width, (void*) this);
 205 }
 206
 207 double current = 0.0;
 208
 209 void
 210 Editor::update_current_screen ()
 211 {
 212         if (_pending_locate_request) {
 213                 /* we don't update things when there's a pending locate request, otherwise
 214                    when the editor requests a locate there is a chance that this method
 215                    will move the playhead before the locate request is processed, causing
 216                    a visual glitch. */
 217                 return;
 218         }
 219
 220         if (_session && _session->engine().running()) {
 221
 222                 nframes64_t const frame = _session->audible_frame();
 223
 224                 if (_dragging_playhead) {
 225                         goto almost_done;
 226                 }
 227
 228                 /* only update if the playhead is on screen or we are following it */
 229
 230                 if (_follow_playhead && _session->requested_return_frame() < 0) {
 231
 232                         //playhead_cursor->canvas_item.show();
 233
 234                         if (frame != last_update_frame) {
 235
 236
 237 #undef CONTINUOUS_SCROLL
 238 #ifndef  CONTINUOUS_SCROLL
 239                                 if (frame < leftmost_frame || frame > leftmost_frame + current_page_frames()) {
 240
 241                                         if (_session->transport_speed() < 0) {
 242                                                 if (frame > (current_page_frames()/2)) {
 243                                                         center_screen (frame-(current_page_frames()/2));
 244                                                 } else {
 245                                                         center_screen (current_page_frames()/2);
 246                                                 }
 247
 248                                         } else {
 249
 250                                                 if (frame < leftmost_frame) {
 251                                                         /* moving left */
 252                                                         nframes64_t l = 0;
 253                                                         if (_session->transport_rolling()) {
 254                                                                 /* rolling; end up with the playhead at the right of the page */
 255                                                                 l = frame - current_page_frames ();
 256                                                         } else {
 257                                                                 /* not rolling: end up with the playhead 3/4 of the way along the page */
 258                                                                 l = frame - (3 * current_page_frames() / 4);
 259                                                         }
 260
 261                                                         if (l < 0) {
 262                                                                 l = 0;
 263                                                         }
 264
 265                                                         center_screen_internal (l + (current_page_frames() / 2), current_page_frames ());
 266                                                 } else {
 267                                                         /* moving right */
 268                                                         if (_session->transport_rolling()) {
 269                                                                 /* rolling: end up with the playhead on the left of the page */
 270                                                                 center_screen_internal (frame + (current_page_frames() / 2), current_page_frames ());
 271                                                         } else {
 272                                                                 /* not rolling: end up with the playhead 1/4 of the way along the page */
 273                                                                 center_screen_internal (frame + (current_page_frames() / 4), current_page_frames ());
 274                                                         }
 275                                                 }
 276                                         }
 277                                 }
 278
 279                                 playhead_cursor->set_position (frame);
 280
 281 #else  // CONTINUOUS_SCROLL
 282
 283                                 /* don't do continuous scroll till the new position is in the rightmost quarter of the
 284                                    editor canvas
 285                                 */
 286
 287                                 if (_session->transport_speed()) {
 288                                         double target = ((double)frame - (double)current_page_frames()/2.0) / frames_per_unit;
 289                                         if (target <= 0.0) target = 0.0;
 290                                         if ( fabs(target - current) < current_page_frames()/frames_per_unit ) {
 291                                                 target = (target * 0.15) + (current * 0.85);
 292                                         } else {
 293                                                 /* relax */
 294                                         }
 295                                         //printf("frame: %d,  cpf: %d,  fpu: %6.6f, current: %6.6f, target : %6.6f\n", frame, current_page_frames(), frames_per_unit, current, target );
 296                                         current = target;
 297                                         horizontal_adjustment.set_value ( current );
 298                                 }
 299
 300                                 playhead_cursor->set_position (frame);
 301
 302 #endif // CONTINUOUS_SCROLL
 303
 304                         }
 305
 306                 } else {
 307                         if (frame != last_update_frame) {
 308                                 playhead_cursor->set_position (frame);
 309                         }
 310                 }
 311
 312           almost_done:
 313                 last_update_frame = frame;
 314                 if (current_mixer_strip) {
 315                         current_mixer_strip->fast_update ();
 316                 }
 317
 318         }
 319 }
 320
 321 void
 322 Editor::current_mixer_strip_hidden ()
 323 {
 324         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
 325
 326                 RouteTimeAxisView* tmp;
 327
 328                 if ((tmp = dynamic_cast<RouteTimeAxisView*>(*i)) != 0) {
 329                         if (tmp->route() == current_mixer_strip->route()) {
 330                                 (*i)->set_selected (false);
 331                                 break;
 332                         }
 333                 }
 334         }
 335
 336         Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
 337         if (act) {
 338                 Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
 339                 tact->set_active (false);
 340         }
 341 }
 342
 343 void
 344 Editor::session_going_away ()
 345 {
 346         _have_idled = false;
 347
 348         _session_connections.drop_connections ();
 349
 350         stop_scrolling ();
 351         selection->clear ();
 352         cut_buffer->clear ();
 353
 354         clicked_regionview = 0;
 355         clicked_axisview = 0;
 356         clicked_routeview = 0;
 357         clicked_crossfadeview = 0;
 358         entered_regionview = 0;
 359         entered_track = 0;
 360         last_update_frame = 0;
 361         _drags->abort ();
 362
 363         playhead_cursor->canvas_item.hide ();
 364
 365         /* rip everything out of the list displays */
 366
 367         _regions->clear ();
 368         _routes->clear ();
 369         _route_groups->clear ();
 370
 371         /* do this first so that deleting a track doesn't reset cms to null
 372            and thus cause a leak.
 373         */
 374
 375         if (current_mixer_strip) {
 376                 if (current_mixer_strip->get_parent() != 0) {
 377                         global_hpacker.remove (*current_mixer_strip);
 378                 }
 379                 delete current_mixer_strip;
 380                 current_mixer_strip = 0;
 381         }
 382
 383         /* delete all trackviews */
 384
 385         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
 386                 delete *i;
 387         }
 388         track_views.clear ();
 389
 390         zoom_range_clock.set_session (0);
 391         nudge_clock.set_session (0);
 392
 393         editor_list_button.set_active(false);
 394         editor_list_button.set_sensitive(false);
 395
 396         /* clear tempo/meter rulers */
 397         remove_metric_marks ();
 398         hide_measures ();
 399         clear_marker_display ();
 400
 401         delete current_bbt_points;
 402         current_bbt_points = 0;
 403
 404         /* get rid of any existing editor mixer strip */
 405
 406         WindowTitle title(Glib::get_application_name());
 407         title += _("Editor");
 408
 409         set_title (title.get_string());
 410
 411         SessionHandlePtr::session_going_away ();
 412 }
 413
 414 void
 415 Editor::maybe_add_mixer_strip_width (XMLNode& node)
 416 {
 417         if (current_mixer_strip) {
 418                 node.add_property ("mixer-width", enum_2_string (current_mixer_strip->get_width_enum()));
 419         }
 420 }
 421