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 "automation_time_axis.h"
  34 #include "actions.h"
  35
  36 #include "i18n.h"
  37
  38 using namespace Gtkmm2ext;
  39 using namespace PBD;
  40
  41 void
  42 Editor::editor_mixer_button_toggled ()
  43 {
  44         Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
  45         if (act) {
  46                 Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
  47                 show_editor_mixer (tact->get_active());
  48         }
  49 }
  50
  51 void
  52 Editor::cms_deleted ()
  53 {
  54         current_mixer_strip = 0;
  55 }
  56
  57 void
  58 Editor::show_editor_mixer (bool yn)
  59 {
  60         boost::shared_ptr<ARDOUR::Route> r;
  61
  62         show_editor_mixer_when_tracks_arrive = false;
  63
  64         if (!session) {
  65                 show_editor_mixer_when_tracks_arrive = yn;
  66                 return;
  67         }
  68
  69         if (yn) {
  70
  71                 if (selection->tracks.empty()) {
  72
  73                         if (track_views.empty()) {
  74                                 show_editor_mixer_when_tracks_arrive = true;
  75                                 return;
  76                         }
  77
  78                         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
  79                                 AudioTimeAxisView* atv;
  80
  81                                 if ((atv = dynamic_cast<AudioTimeAxisView*> (*i)) != 0) {
  82                                         r = atv->route();
  83                                         break;
  84                                 }
  85                         }
  86
  87                 } else {
  88
  89                         sort_track_selection ();
  90
  91                         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
  92                                 AudioTimeAxisView* atv;
  93
  94                                 if ((atv = dynamic_cast<AudioTimeAxisView*> (*i)) != 0) {
  95                                         r = atv->route();
  96                                         break;
  97                                 }
  98                         }
  99                 }
 100
 101                 if (r) {
 102                         bool created;
 103
 104                         if (current_mixer_strip == 0) {
 105                                 create_editor_mixer ();
 106                                 created = true;
 107                         } else {
 108                                 created = false;
 109                         }
 110
 111                         current_mixer_strip->set_route (r);
 112
 113                         if (created) {
 114                                 current_mixer_strip->set_width (editor_mixer_strip_width, (void*) this);
 115                         }
 116                 }
 117
 118                 if (current_mixer_strip->get_parent() == 0) {
 119                         global_hpacker.pack_start (*current_mixer_strip, Gtk::PACK_SHRINK );
 120                         global_hpacker.reorder_child (*current_mixer_strip, 0);
 121                         current_mixer_strip->show_all ();
 122                 }
 123
 124         } else {
 125
 126                 if (current_mixer_strip) {
 127                         if (current_mixer_strip->get_parent() != 0) {
 128                                 global_hpacker.remove (*current_mixer_strip);
 129                         }
 130                 }
 131         }
 132
 133 #ifdef GTKOSX
 134         /* XXX gtk problem here */
 135         ensure_all_elements_drawn();
 136 #endif
 137 }
 138
 139 #ifdef GTKOSX
 140 void
 141 Editor::ensure_all_elements_drawn ()
 142 {
 143         controls_layout.queue_draw ();
 144         ruler_label_event_box.queue_draw ();
 145         time_button_event_box.queue_draw ();
 146 }
 147 #endif
 148
 149 void
 150 Editor::create_editor_mixer ()
 151 {
 152         current_mixer_strip = new MixerStrip (*ARDOUR_UI::instance()->the_mixer(),
 153                                               *session,
 154                                               false);
 155         current_mixer_strip->Hiding.connect (mem_fun(*this, &Editor::current_mixer_strip_hidden));
 156         current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::current_mixer_strip_removed));
 157 #ifdef GTKOSX
 158         current_mixer_strip->WidthChanged.connect (mem_fun(*this, &Editor::ensure_all_elements_drawn));
 159 #endif
 160         current_mixer_strip->set_embedded (true);
 161 }
 162
 163 void
 164 Editor::set_selected_mixer_strip (TimeAxisView& view)
 165 {
 166         bool show = false;
 167         bool created;
 168
 169         if (!session)
 170                 return;
 171
 172         Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
 173         if (act) {
 174                 Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
 175                 if (!tact || !tact->get_active()) {
 176                         /* not showing mixer strip presently */
 177                         return;
 178                 }
 179         }
 180
 181         if (current_mixer_strip == 0) {
 182                 create_editor_mixer ();
 183                 created = true;
 184         } else {
 185                 created = false;
 186         }
 187
 188         //if this is an automation track then we should show the parent
 189         boost::shared_ptr<ARDOUR::Route> route;
 190         AutomationTimeAxisView *auto_tav;
 191         if ( (auto_tav  = dynamic_cast<AutomationTimeAxisView*>(&view)) == 0 ) {
 192                 AudioTimeAxisView* at = dynamic_cast<AudioTimeAxisView*>(&view);
 193                 if (at != NULL)
 194                         route = at->route();
 195         } else {
 196                 AudioTimeAxisView *parent = dynamic_cast<AudioTimeAxisView*>( view.get_parent() );
 197                 if (parent != NULL) {
 198                         route = parent->route();
 199                 }
 200         }
 201
 202         if (current_mixer_strip->route() == route) {
 203                 return;
 204         }
 205
 206         if (current_mixer_strip->get_parent()) {
 207                 show = true;
 208         }
 209
 210         current_mixer_strip->set_route (route);
 211
 212         if (created) {
 213                 current_mixer_strip->set_width (editor_mixer_strip_width, (void*) this);
 214         }
 215
 216         if (show) {
 217                 show_editor_mixer (true);
 218         }
 219 }
 220
 221 double current = 0.0;
 222
 223 void
 224 Editor::update_current_screen ()
 225 {
 226         if (session && session->engine().running()) {
 227
 228                 nframes64_t frame;
 229
 230                 //frame = session->audible_frame();
 231                 frame = session->transport_frame ();
 232
 233                 if (_dragging_playhead) {
 234                         goto almost_done;
 235                 }
 236
 237 #undef DEBUG_CURRENT_SCREEN
 238 #if DEBUG_CURRENT_SCREEN
 239
 240                 cerr << "@ " << frame << " last " << last_update_frame << " follow " << _follow_playhead
 241                      << " ret " << session->requested_return_frame()
 242                      << " left " << leftmost_frame
 243                      << " right " << leftmost_frame + current_page_frames()
 244                      << " speed " << session->transport_speed ()
 245                      << endl;
 246 #endif
 247
 248                 /* only update if the playhead is on screen or we are following it */
 249
 250                 if (_follow_playhead && session->requested_return_frame() < 0) {
 251
 252                         //playhead_cursor->canvas_item.show();
 253
 254                         if (frame != last_update_frame) {
 255
 256
 257                 if ( !_stationary_playhead ) {
 258                                 if (frame < leftmost_frame || frame > leftmost_frame + current_page_frames()) {
 259
 260 #ifdef DEBUG_CURRENT_SCREEN
 261                                         cerr << "\trecenter...\n";
 262 #endif
 263                                         if (session->transport_speed() < 0) {
 264                                                 if (frame > (current_page_frames()/2)) {
 265                                                         center_screen (frame-(current_page_frames()/2));
 266                                                 } else {
 267                                                         center_screen (current_page_frames()/2);
 268                                                 }
 269                                         } else {
 270                                                 center_screen (frame+(current_page_frames()/2));
 271                                         }
 272                                 }
 273
 274                                 playhead_cursor->set_position (frame);
 275
 276                 } else {
 277
 278                                 /* don't do continuous scroll till the new position is in the rightmost quarter of the
 279                                    editor canvas
 280                                 */
 281
 282                                 if (session->transport_speed()) {
 283                                         double target = ((double)frame - (double)current_page_frames()/2.0) / frames_per_unit;
 284                                         if (target <= 0.0) target = 0.0;
 285                                         if ( fabs(target - current) < current_page_frames()/frames_per_unit ) {
 286                                                 target = (target * 0.15) + (current * 0.85);
 287                                         } else {
 288                                                 /* relax */
 289                                         }
 290                                         //printf("frame: %d,  cpf: %d,  fpu: %6.6f, current: %6.6f, target : %6.6f\n", frame, current_page_frames(), frames_per_unit, current, target );
 291                                         current = target;
 292                                         horizontal_adjustment.set_value ( current );
 293                                 }
 294
 295                                 playhead_cursor->set_position (frame);
 296
 297                                 }
 298
 299                         }
 300
 301                 } else {
 302
 303                         if (frame != last_update_frame) {
 304                                 playhead_cursor->set_position (frame);
 305                         }
 306                 }
 307
 308           almost_done:
 309                 last_update_frame = frame;
 310                 if (current_mixer_strip) {
 311                         current_mixer_strip->fast_update ();
 312                 }
 313
 314         }
 315 }
 316
 317 void
 318 Editor::current_mixer_strip_removed ()
 319 {
 320         if (current_mixer_strip) {
 321                 /* it is being deleted elsewhere */
 322                 current_mixer_strip = 0;
 323         }
 324 }
 325
 326 void
 327 Editor::current_mixer_strip_hidden ()
 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 }