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