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
  28 #include "editor.h"
  29 #include "mixer_strip.h"
  30 #include "ardour_ui.h"
  31 #include "selection.h"
  32 #include "audio_time_axis.h"
  33 #include "actions.h"
  34
  35 #include "i18n.h"
  36
  37 using namespace Gtkmm2ext;
  38 using namespace PBD;
  39
  40 void
  41 Editor::editor_mixer_button_toggled ()
  42 {
  43         Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
  44         if (act) {
  45                 Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
  46                 show_editor_mixer (tact->get_active());
  47         }
  48 }
  49
  50 void
  51 Editor::editor_list_button_toggled ()
  52 {
  53         Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-list"));
  54         if (act) {
  55                 Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
  56                 show_editor_list (tact->get_active());
  57         }
  58 }
  59
  60 void
  61 Editor::cms_deleted ()
  62 {
  63         current_mixer_strip = 0;
  64 }
  65
  66 void
  67 Editor::show_editor_mixer (bool yn)
  68 {
  69         boost::shared_ptr<ARDOUR::Route> r;
  70
  71         show_editor_mixer_when_tracks_arrive = false;
  72
  73         if (!session) {
  74                 show_editor_mixer_when_tracks_arrive = yn;
  75                 return;
  76         }
  77
  78         if (yn) {
  79
  80                 if (selection->tracks.empty()) {
  81
  82                         if (track_views.empty()) {
  83                                 show_editor_mixer_when_tracks_arrive = true;
  84                                 return;
  85                         }
  86
  87                         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
  88                                 AudioTimeAxisView* atv;
  89
  90                                 if ((atv = dynamic_cast<AudioTimeAxisView*> (*i)) != 0) {
  91                                         r = atv->route();
  92                                         break;
  93                                 }
  94                         }
  95
  96                 } else {
  97
  98                         sort_track_selection ();
  99
 100                         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
 101                                 AudioTimeAxisView* atv;
 102
 103                                 if ((atv = dynamic_cast<AudioTimeAxisView*> (*i)) != 0) {
 104                                         r = atv->route();
 105                                         break;
 106                                 }
 107                         }
 108                 }
 109
 110                 if (r) {
 111                         bool created;
 112
 113                         if (current_mixer_strip == 0) {
 114                                 create_editor_mixer ();
 115                                 created = true;
 116                         } else {
 117                                 created = false;
 118                         }
 119
 120                         current_mixer_strip->set_route (r);
 121
 122                         if (created) {
 123                                 current_mixer_strip->set_width (editor_mixer_strip_width, (void*) this);
 124                         }
 125                 }
 126
 127                 if (current_mixer_strip->get_parent() == 0) {
 128                         global_hpacker.pack_start (*current_mixer_strip, Gtk::PACK_SHRINK );
 129                         global_hpacker.reorder_child (*current_mixer_strip, 0);
 130                         current_mixer_strip->show_all ();
 131                 }
 132
 133         } else {
 134
 135                 if (current_mixer_strip) {
 136                         if (current_mixer_strip->get_parent() != 0) {
 137                                 global_hpacker.remove (*current_mixer_strip);
 138                         }
 139                 }
 140         }
 141
 142 #ifdef GTKOSX
 143         /* XXX gtk problem here */
 144         ensure_all_elements_drawn();
 145 #endif
 146 }
 147
 148 #ifdef GTKOSX
 149 void
 150 Editor::ensure_all_elements_drawn ()
 151 {
 152         controls_layout.queue_draw ();
 153         ruler_label_event_box.queue_draw ();
 154         time_button_event_box.queue_draw ();
 155 }
 156 #endif
 157
 158 void
 159 Editor::create_editor_mixer ()
 160 {
 161         current_mixer_strip = new MixerStrip (*ARDOUR_UI::instance()->the_mixer(),
 162                                               *session,
 163                                               false);
 164         current_mixer_strip->Hiding.connect (mem_fun(*this, &Editor::current_mixer_strip_hidden));
 165         current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::current_mixer_strip_removed));
 166 #ifdef GTKOSX
 167         current_mixer_strip->WidthChanged.connect (mem_fun(*this, &Editor::ensure_all_elements_drawn));
 168 #endif
 169         current_mixer_strip->set_embedded (true);
 170 }
 171
 172 void
 173 Editor::show_editor_list (bool yn)
 174 {
 175         if (yn) {
 176                 the_notebook.show();
 177         } else {
 178                 the_notebook.hide();
 179         }
 180 }
 181
 182 void
 183 Editor::set_selected_mixer_strip (TimeAxisView& view)
 184 {
 185         AudioTimeAxisView* at;
 186         bool show = false;
 187         bool created;
 188
 189         if (!session || (at = dynamic_cast<AudioTimeAxisView*>(&view)) == 0) {
 190                 return;
 191         }
 192
 193         Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
 194         if (act) {
 195                 Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
 196                 if (!tact || !tact->get_active()) {
 197                         /* not showing mixer strip presently */
 198                         return;
 199                 }
 200         }
 201
 202         if (current_mixer_strip == 0) {
 203                 create_editor_mixer ();
 204                 created = true;
 205         } else {
 206                 created = false;
 207         }
 208
 209         /* might be nothing to do */
 210
 211         if (current_mixer_strip->route() == at->route()) {
 212                 return;
 213         }
 214
 215         if (current_mixer_strip->get_parent()) {
 216                 show = true;
 217         }
 218
 219         current_mixer_strip->set_route (at->route());
 220
 221         if (created) {
 222                 current_mixer_strip->set_width (editor_mixer_strip_width, (void*) this);
 223         }
 224
 225         if (show) {
 226                 show_editor_mixer (true);
 227         }
 228 }
 229
 230 double current = 0.0;
 231 bool currentInitialized = 0;
 232
 233 void
 234 Editor::update_current_screen ()
 235 {
 236         if (session && session->engine().running()) {
 237
 238                 nframes64_t frame;
 239
 240                 frame = session->audible_frame();
 241
 242                 if (_dragging_playhead) {
 243                         goto almost_done;
 244                 }
 245
 246                 /* only update if the playhead is on screen or we are following it */
 247
 248                 if (_follow_playhead && session->requested_return_frame() < 0) {
 249
 250                         //playhead_cursor->canvas_item.show();
 251
 252                         if (frame != last_update_frame) {
 253
 254
 255 #undef CONTINUOUS_SCROLL
 256 #ifndef  CONTINUOUS_SCROLL
 257                                 if (frame < leftmost_frame || frame > leftmost_frame + current_page_frames()) {
 258
 259                                         if (session->transport_speed() < 0) {
 260                                                 if (frame > (current_page_frames()/2)) {
 261                                                         center_screen (frame-(current_page_frames()/2));
 262                                                 } else {
 263                                                         center_screen (current_page_frames()/2);
 264                                                 }
 265                                         } else {
 266                                                 center_screen (frame+(current_page_frames()/2));
 267                                         }
 268                                 }
 269
 270                                 playhead_cursor->set_position (frame);
 271
 272 #else  // CONTINUOUS_SCROLL
 273
 274                                 /* don't do continuous scroll till the new position is in the rightmost quarter of the
 275                                    editor canvas
 276                                 */
 277
 278                                 if (session->transport_speed()) {
 279                                         double target = ((double)frame - (double)current_page_frames()/2.0) / frames_per_unit;
 280                                         if (target <= 0.0) target = 0.0;
 281                                         if ( fabs(target - current) < current_page_frames()/frames_per_unit ) {
 282                                                 target = (target * 0.15) + (current * 0.85);
 283                                         } else {
 284                                                 /* relax */
 285                                         }
 286                                         //printf("frame: %d,  cpf: %d,  fpu: %6.6f, current: %6.6f, target : %6.6f\n", frame, current_page_frames(), frames_per_unit, current, target );
 287                                         current = target;
 288                                         horizontal_adjustment.set_value ( current );
 289                                 }
 290
 291                                 playhead_cursor->set_position (frame);
 292
 293 #endif // CONTINUOUS_SCROLL
 294
 295                         }
 296
 297                 } else {
 298
 299                         if (frame != last_update_frame) {
 300                                 playhead_cursor->set_position (frame);
 301                         }
 302                 }
 303
 304           almost_done:
 305                 last_update_frame = frame;
 306                 if (current_mixer_strip) {
 307                         current_mixer_strip->fast_update ();
 308                 }
 309
 310         }
 311 }
 312
 313 void
 314 Editor::current_mixer_strip_removed ()
 315 {
 316         if (current_mixer_strip) {
 317                 /* it is being deleted elsewhere */
 318                 current_mixer_strip = 0;
 319         }
 320 }
 321
 322 void
 323 Editor::current_mixer_strip_hidden ()
 324 {
 325         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
 326
 327                 AudioTimeAxisView* tmp;
 328
 329                 if ((tmp = dynamic_cast<AudioTimeAxisView*>(*i)) != 0) {
 330                         if (tmp->route() == current_mixer_strip->route()) {
 331                                 (*i)->set_selected (false);
 332                                 break;
 333                         }
 334                 }
 335         }
 336
 337         Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
 338         if (act) {
 339                 Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
 340                 tact->set_active (false);
 341         }
 342 }
 343
 344 void
 345 Editor::session_going_away ()
 346 {
 347         _have_idled = false;
 348
 349         for (vector<sigc::connection>::iterator i = session_connections.begin(); i != session_connections.end(); ++i) {
 350                 (*i).disconnect ();
 351         }
 352
 353         stop_scrolling ();
 354         selection->clear ();
 355         cut_buffer->clear ();
 356
 357         clicked_regionview = 0;
 358         clicked_axisview = 0;
 359         clicked_routeview = 0;
 360         clicked_crossfadeview = 0;
 361         entered_regionview = 0;
 362         entered_track = 0;
 363         last_update_frame = 0;
 364         drag_info.item = 0;
 365
 366         playhead_cursor->canvas_item.hide ();
 367
 368         /* hide all tracks */
 369
 370         hide_all_tracks (false);
 371
 372         /* rip everything out of the list displays */
 373
 374         region_list_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
 375         route_list_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
 376         named_selection_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
 377         edit_group_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
 378
 379         region_list_model->clear ();
 380         route_display_model->clear ();
 381         named_selection_model->clear ();
 382         group_model->clear ();
 383
 384         region_list_display.set_model (region_list_model);
 385         route_list_display.set_model (route_display_model);
 386         named_selection_display.set_model (named_selection_model);
 387         edit_group_display.set_model (group_model);
 388
 389         edit_point_clock_connection_a.disconnect();
 390         edit_point_clock_connection_b.disconnect();
 391
 392         edit_point_clock.set_session (0);
 393         zoom_range_clock.set_session (0);
 394         nudge_clock.set_session (0);
 395
 396         editor_list_button.set_active(false);
 397         editor_list_button.set_sensitive(false);
 398
 399         /* clear tempo/meter rulers */
 400         remove_metric_marks ();
 401         hide_measures ();
 402         clear_marker_display ();
 403
 404         if (current_bbt_points) {
 405                 delete current_bbt_points;
 406                 current_bbt_points = 0;
 407         }
 408
 409         /* mixer strip will be deleted all by itself
 410            when its route is deleted.
 411         */
 412
 413         current_mixer_strip = 0;
 414
 415         WindowTitle title(Glib::get_application_name());
 416         title += _("Editor");
 417
 418         set_title (title.get_string());
 419
 420         session = 0;
 421 }
 422
 423 void
 424 Editor::maybe_add_mixer_strip_width (XMLNode& node)
 425 {
 426         if (current_mixer_strip) {
 427                 node.add_property ("mixer-width", enum_2_string (current_mixer_strip->get_width()));
 428         }
 429 }
 430