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 #undef DEBUG_CURRENT_SCREEN
 226 #if DEBUG_CURRENT_SCREEN
 227
 228                 cerr << "@ " << frame << " last " << last_update_frame << " follow " << _follow_playhead
 229                      << " ret " << session->requested_return_frame()
 230                      << " left " << leftmost_frame
 231                      << " right " << leftmost_frame + current_page_frames()
 232                      << " speed " << session->transport_speed ()
 233                      << endl;
 234 #endif
 235
 236                 /* only update if the playhead is on screen or we are following it */
 237
 238                 if (_follow_playhead && session->requested_return_frame() < 0) {
 239
 240                         //playhead_cursor->canvas_item.show();
 241
 242                         if (frame != last_update_frame) {
 243
 244
 245                 if ( !_stationary_playhead ) {
 246                                 if (frame < leftmost_frame || frame > leftmost_frame + current_page_frames()) {
 247
 248 #ifdef DEBUG_CURRENT_SCREEN
 249                                         cerr << "\trecenter...\n";
 250 #endif
 251                                         if (session->transport_speed() < 0) {
 252                                                 if (frame > (current_page_frames()/2)) {
 253                                                         center_screen (frame-(current_page_frames()/2));
 254                                                 } else {
 255                                                         center_screen (current_page_frames()/2);
 256                                                 }
 257                                         } else {
 258                                                 center_screen (frame+(current_page_frames()/2));
 259                                         }
 260                                 }
 261
 262                                 playhead_cursor->set_position (frame);
 263
 264                 } else {
 265
 266                                 /* don't do continuous scroll till the new position is in the rightmost quarter of the
 267                                    editor canvas
 268                                 */
 269
 270                                 if (session->transport_speed()) {
 271                                         double target = ((double)frame - (double)current_page_frames()/2.0) / frames_per_unit;
 272                                         if (target <= 0.0) target = 0.0;
 273                                         if ( fabs(target - current) < current_page_frames()/frames_per_unit ) {
 274                                                 target = (target * 0.15) + (current * 0.85);
 275                                         } else {
 276                                                 /* relax */
 277                                         }
 278                                         //printf("frame: %d,  cpf: %d,  fpu: %6.6f, current: %6.6f, target : %6.6f\n", frame, current_page_frames(), frames_per_unit, current, target );
 279                                         current = target;
 280                                         horizontal_adjustment.set_value ( current );
 281                                 }
 282
 283                                 playhead_cursor->set_position (frame);
 284
 285                                 }
 286
 287                         }
 288
 289                 } else {
 290
 291                         if (frame != last_update_frame) {
 292                                 playhead_cursor->set_position (frame);
 293                         }
 294                 }
 295
 296           almost_done:
 297                 last_update_frame = frame;
 298                 if (current_mixer_strip) {
 299                         current_mixer_strip->fast_update ();
 300                 }
 301
 302         }
 303 }
 304
 305 void
 306 Editor::current_mixer_strip_removed ()
 307 {
 308         if (current_mixer_strip) {
 309                 /* it is being deleted elsewhere */
 310                 current_mixer_strip = 0;
 311         }
 312 }
 313
 314 void
 315 Editor::current_mixer_strip_hidden ()
 316 {
 317         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
 318
 319                 AudioTimeAxisView* tmp;
 320
 321                 if ((tmp = dynamic_cast<AudioTimeAxisView*>(*i)) != 0) {
 322                         if (tmp->route() == current_mixer_strip->route()) {
 323                                 (*i)->set_selected (false);
 324                                 break;
 325                         }
 326                 }
 327         }
 328
 329         Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
 330         if (act) {
 331                 Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
 332                 tact->set_active (false);
 333         }
 334 }
 335
 336 void
 337 Editor::session_going_away ()
 338 {
 339         _have_idled = false;
 340
 341         for (vector<sigc::connection>::iterator i = session_connections.begin(); i != session_connections.end(); ++i) {
 342                 (*i).disconnect ();
 343         }
 344
 345         stop_scrolling ();
 346         selection->clear ();
 347         cut_buffer->clear ();
 348
 349         clicked_regionview = 0;
 350         clicked_trackview = 0;
 351         clicked_audio_trackview = 0;
 352         clicked_crossfadeview = 0;
 353         entered_regionview = 0;
 354         entered_track = 0;
 355         last_update_frame = 0;
 356         drag_info.item = 0;
 357
 358         playhead_cursor->canvas_item.hide ();
 359
 360         /* hide all tracks */
 361
 362         hide_all_tracks (false);
 363
 364         /* rip everything out of the list displays */
 365
 366         region_list_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
 367         route_list_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
 368         named_selection_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
 369         edit_group_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
 370
 371         region_list_model->clear ();
 372         route_display_model->clear ();
 373         named_selection_model->clear ();
 374         group_model->clear ();
 375
 376         region_list_display.set_model (region_list_model);
 377         route_list_display.set_model (route_display_model);
 378         named_selection_display.set_model (named_selection_model);
 379         edit_group_display.set_model (group_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         /* clear tempo/meter rulers */
 389         remove_metric_marks ();
 390         hide_measures ();
 391         clear_marker_display ();
 392
 393         if (current_bbt_points) {
 394                 delete current_bbt_points;
 395                 current_bbt_points = 0;
 396         }
 397
 398         /* get rid of any existing editor mixer strip */
 399
 400         if (current_mixer_strip) {
 401                 if (current_mixer_strip->get_parent() != 0) {
 402                         global_hpacker.remove (*current_mixer_strip);
 403                 }
 404                 delete current_mixer_strip;
 405                 current_mixer_strip = 0;
 406         }
 407
 408         WindowTitle title(Glib::get_application_name());
 409         title += _("Editor");
 410
 411         set_title (title.get_string());
 412
 413         session = 0;
 414 }
 415
 416 void
 417 Editor::maybe_add_mixer_strip_width (XMLNode& node)
 418 {
 419         if (current_mixer_strip) {
 420                 node.add_property ("mixer-width", enum_2_string (current_mixer_strip->get_width()));
 421         }
 422 }