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