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 #include "editor_routes.h"
  35 #include "editor_route_groups.h"
  36 #include "editor_regions.h"
  37
  38 #include "i18n.h"
  39
  40 using namespace std;
  41 using namespace Gtkmm2ext;
  42 using namespace PBD;
  43
  44 void
  45 Editor::editor_mixer_button_toggled ()
  46 {
  47         Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
  48         if (act) {
  49                 Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
  50                 show_editor_mixer (tact->get_active());
  51         }
  52 }
  53
  54 void
  55 Editor::editor_list_button_toggled ()
  56 {
  57         Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-list"));
  58         if (act) {
  59                 Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
  60                 show_editor_list (tact->get_active());
  61         }
  62 }
  63
  64 void
  65 Editor::cms_deleted ()
  66 {
  67         current_mixer_strip = 0;
  68 }
  69
  70 void
  71 Editor::show_editor_mixer (bool yn)
  72 {
  73         boost::shared_ptr<ARDOUR::Route> r;
  74
  75         show_editor_mixer_when_tracks_arrive = false;
  76
  77         if (!session) {
  78                 show_editor_mixer_when_tracks_arrive = yn;
  79                 return;
  80         }
  81
  82         if (yn) {
  83
  84                 if (selection->tracks.empty()) {
  85
  86                         if (track_views.empty()) {
  87                                 show_editor_mixer_when_tracks_arrive = true;
  88                                 return;
  89                         }
  90
  91                         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
  92                                 RouteTimeAxisView* atv;
  93
  94                                 if ((atv = dynamic_cast<RouteTimeAxisView*> (*i)) != 0) {
  95                                         r = atv->route();
  96                                         break;
  97                                 }
  98                         }
  99
 100                 } else {
 101                         sort_track_selection ();
 102
 103                         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
 104                                 RouteTimeAxisView* atv;
 105
 106                                 if ((atv = dynamic_cast<RouteTimeAxisView*> (*i)) != 0) {
 107                                         r = atv->route();
 108                                         break;
 109                                 }
 110                         }
 111                 }
 112
 113                 if (r) {
 114                         bool created;
 115
 116                         if (current_mixer_strip == 0) {
 117                                 create_editor_mixer ();
 118                                 created = true;
 119                         } else {
 120                                 created = false;
 121                         }
 122
 123                         current_mixer_strip->set_route (r);
 124
 125                         if (created) {
 126                                 current_mixer_strip->set_width_enum (editor_mixer_strip_width, (void*) this);
 127                         }
 128                 }
 129
 130                 if (current_mixer_strip->get_parent() == 0) {
 131                         global_hpacker.pack_start (*current_mixer_strip, Gtk::PACK_SHRINK );
 132                         global_hpacker.reorder_child (*current_mixer_strip, 0);
 133                         current_mixer_strip->show_all ();
 134                 }
 135
 136         } else {
 137
 138                 if (current_mixer_strip) {
 139                         if (current_mixer_strip->get_parent() != 0) {
 140                                 global_hpacker.remove (*current_mixer_strip);
 141                         }
 142                 }
 143         }
 144
 145 #ifdef GTKOSX
 146         /* XXX gtk problem here */
 147         ensure_all_elements_drawn();
 148 #endif
 149 }
 150
 151 #ifdef GTKOSX
 152 void
 153 Editor::ensure_all_elements_drawn ()
 154 {
 155         controls_layout.queue_draw ();
 156         ruler_label_event_box.queue_draw ();
 157         time_button_event_box.queue_draw ();
 158 }
 159 #endif
 160
 161 void
 162 Editor::show_editor_list (bool yn)
 163 {
 164         if (yn) {
 165                 the_notebook.show();
 166         } else {
 167                 the_notebook.hide();
 168         }
 169 }
 170
 171 void
 172 Editor::create_editor_mixer ()
 173 {
 174         current_mixer_strip = new MixerStrip (*ARDOUR_UI::instance()->the_mixer(),
 175                                               *session,
 176                                               false);
 177         current_mixer_strip->Hiding.connect (mem_fun(*this, &Editor::current_mixer_strip_hidden));
 178         current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::current_mixer_strip_removed));
 179 #ifdef GTKOSX
 180         current_mixer_strip->WidthChanged.connect (mem_fun(*this, &Editor::ensure_all_elements_drawn));
 181 #endif
 182         current_mixer_strip->set_embedded (true);
 183 }
 184
 185 void
 186 Editor::set_selected_mixer_strip (TimeAxisView& view)
 187 {
 188         RouteTimeAxisView* at;
 189         bool created;
 190
 191         if (!session || (at = dynamic_cast<RouteTimeAxisView*>(&view)) == 0) {
 192                 return;
 193         }
 194
 195         Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
 196
 197         if (act) {
 198                 Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
 199                 if (!tact || !tact->get_active()) {
 200                         /* not showing mixer strip presently */
 201                         return;
 202                 }
 203         }
 204
 205         if (current_mixer_strip == 0) {
 206                 create_editor_mixer ();
 207                 created = true;
 208         } else {
 209                 created = false;
 210         }
 211
 212         /* might be nothing to do */
 213
 214         if (current_mixer_strip->route() == at->route()) {
 215                 return;
 216         }
 217
 218         if (created) {
 219                 current_mixer_strip->set_width_enum (editor_mixer_strip_width, (void*) this);
 220         }
 221
 222         current_mixer_strip->set_route (at->route());
 223 }
 224
 225 double current = 0.0;
 226
 227 void
 228 Editor::update_current_screen ()
 229 {
 230         if (_pending_locate_request) {
 231                 /* we don't update things when there's a pending locate request, otherwise
 232                    when the editor requests a locate there is a chance that this method
 233                    will move the playhead before the locate request is processed, causing
 234                    a visual glitch. */
 235                 return;
 236         }
 237
 238         if (session && session->engine().running()) {
 239
 240                 nframes64_t const 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                         if (frame != last_update_frame) {
 299                                 playhead_cursor->set_position (frame);
 300                         }
 301                 }
 302
 303           almost_done:
 304                 last_update_frame = frame;
 305                 if (current_mixer_strip) {
 306                         current_mixer_strip->fast_update ();
 307                 }
 308
 309         }
 310 }
 311
 312 void
 313 Editor::current_mixer_strip_removed ()
 314 {
 315         if (current_mixer_strip) {
 316                 /* it is being deleted elsewhere */
 317                 current_mixer_strip = 0;
 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         for (vector<sigc::connection>::iterator i = session_connections.begin(); i != session_connections.end(); ++i) {
 349                 (*i).disconnect ();
 350         }
 351
 352         stop_scrolling ();
 353         selection->clear ();
 354         cut_buffer->clear ();
 355
 356         clicked_regionview = 0;
 357         clicked_axisview = 0;
 358         clicked_routeview = 0;
 359         clicked_crossfadeview = 0;
 360         entered_regionview = 0;
 361         entered_track = 0;
 362         last_update_frame = 0;
 363         _drag = 0;
 364
 365         playhead_cursor->canvas_item.hide ();
 366
 367         /* hide all tracks */
 368
 369         _routes->hide_all_tracks (false);
 370
 371         /* rip everything out of the list displays */
 372
 373         _regions->clear ();
 374         _routes->clear ();
 375         _route_groups->clear ();
 376
 377         named_selection_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
 378         named_selection_model->clear ();
 379         named_selection_display.set_model (named_selection_model);
 380
 381         edit_point_clock_connection_a.disconnect();
 382         edit_point_clock_connection_b.disconnect();
 383
 384         edit_point_clock.set_session (0);
 385         zoom_range_clock.set_session (0);
 386         nudge_clock.set_session (0);
 387
 388         editor_list_button.set_active(false);
 389         editor_list_button.set_sensitive(false);
 390
 391         /* clear tempo/meter rulers */
 392         remove_metric_marks ();
 393         hide_measures ();
 394         clear_marker_display ();
 395
 396         delete current_bbt_points;
 397         current_bbt_points = 0;
 398
 399         /* get rid of any existing editor mixer strip */
 400
 401         if (current_mixer_strip) {
 402                 if (current_mixer_strip->get_parent() != 0) {
 403                         global_hpacker.remove (*current_mixer_strip);
 404                 }
 405                 delete current_mixer_strip;
 406                 current_mixer_strip = 0;
 407         }
 408
 409         WindowTitle title(Glib::get_application_name());
 410         title += _("Editor");
 411
 412         set_title (title.get_string());
 413
 414         session = 0;
 415 }
 416
 417 void
 418 Editor::maybe_add_mixer_strip_width (XMLNode& node)
 419 {
 420         if (current_mixer_strip) {
 421                 node.add_property ("mixer-width", enum_2_string (current_mixer_strip->get_width_enum()));
 422         }
 423 }
 424