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 #include "ardour/session.h"
  28
  29 #include "editor.h"
  30 #include "mixer_strip.h"
  31 #include "ardour_ui.h"
  32 #include "selection.h"
  33 #include "audio_time_axis.h"
  34 #include "actions.h"
  35 #include "editor_routes.h"
  36 #include "editor_route_groups.h"
  37 #include "editor_regions.h"
  38
  39 #include "i18n.h"
  40
  41 using namespace std;
  42 using namespace Gtkmm2ext;
  43 using namespace PBD;
  44
  45 void
  46 Editor::editor_mixer_button_toggled ()
  47 {
  48         Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
  49         if (act) {
  50                 Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
  51                 show_editor_mixer (tact->get_active());
  52         }
  53 }
  54
  55 void
  56 Editor::editor_list_button_toggled ()
  57 {
  58         Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-list"));
  59         if (act) {
  60                 Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
  61                 show_editor_list (tact->get_active());
  62         }
  63 }
  64
  65 void
  66 Editor::cms_deleted ()
  67 {
  68         current_mixer_strip = 0;
  69 }
  70
  71 void
  72 Editor::show_editor_mixer (bool yn)
  73 {
  74         boost::shared_ptr<ARDOUR::Route> r;
  75
  76         show_editor_mixer_when_tracks_arrive = false;
  77
  78         if (!session) {
  79                 show_editor_mixer_when_tracks_arrive = yn;
  80                 return;
  81         }
  82
  83         if (yn) {
  84
  85                 if (selection->tracks.empty()) {
  86
  87                         if (track_views.empty()) {
  88                                 show_editor_mixer_when_tracks_arrive = true;
  89                                 return;
  90                         }
  91
  92                         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
  93                                 RouteTimeAxisView* atv;
  94
  95                                 if ((atv = dynamic_cast<RouteTimeAxisView*> (*i)) != 0) {
  96                                         r = atv->route();
  97                                         break;
  98                                 }
  99                         }
 100
 101                 } else {
 102                         sort_track_selection ();
 103
 104                         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
 105                                 RouteTimeAxisView* atv;
 106
 107                                 if ((atv = dynamic_cast<RouteTimeAxisView*> (*i)) != 0) {
 108                                         r = atv->route();
 109                                         break;
 110                                 }
 111                         }
 112                 }
 113
 114                 if (r) {
 115                         if (current_mixer_strip == 0) {
 116                                 create_editor_mixer ();
 117                         }
 118
 119                         current_mixer_strip->set_route (r);
 120                         current_mixer_strip->set_width_enum (editor_mixer_strip_width, (void*) this);
 121                 }
 122
 123                 if (current_mixer_strip->get_parent() == 0) {
 124                         global_hpacker.pack_start (*current_mixer_strip, Gtk::PACK_SHRINK );
 125                         global_hpacker.reorder_child (*current_mixer_strip, 0);
 126                         current_mixer_strip->show_all ();
 127                 }
 128
 129         } else {
 130
 131                 if (current_mixer_strip) {
 132                         if (current_mixer_strip->get_parent() != 0) {
 133                                 global_hpacker.remove (*current_mixer_strip);
 134                         }
 135                 }
 136         }
 137
 138 #ifdef GTKOSX
 139         /* XXX gtk problem here */
 140         ensure_all_elements_drawn();
 141 #endif
 142 }
 143
 144 #ifdef GTKOSX
 145 void
 146 Editor::ensure_all_elements_drawn ()
 147 {
 148         controls_layout.queue_draw ();
 149         ruler_label_event_box.queue_draw ();
 150         time_button_event_box.queue_draw ();
 151 }
 152 #endif
 153
 154 void
 155 Editor::show_editor_list (bool yn)
 156 {
 157         if (yn) {
 158                 the_notebook.show();
 159         } else {
 160                 the_notebook.hide();
 161         }
 162 }
 163
 164 void
 165 Editor::create_editor_mixer ()
 166 {
 167         current_mixer_strip = new MixerStrip (*ARDOUR_UI::instance()->the_mixer(),
 168                                               *session,
 169                                               false);
 170         current_mixer_strip->Hiding.connect (mem_fun(*this, &Editor::current_mixer_strip_hidden));
 171         current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::current_mixer_strip_removed));
 172 #ifdef GTKOSX
 173         current_mixer_strip->WidthChanged.connect (mem_fun(*this, &Editor::ensure_all_elements_drawn));
 174 #endif
 175         current_mixer_strip->set_embedded (true);
 176 }
 177
 178 void
 179 Editor::set_selected_mixer_strip (TimeAxisView& view)
 180 {
 181         RouteTimeAxisView* at;
 182
 183         if (!session || (at = dynamic_cast<RouteTimeAxisView*>(&view)) == 0) {
 184                 return;
 185         }
 186
 187         Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
 188
 189         if (act) {
 190                 Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
 191                 if (!tact || !tact->get_active()) {
 192                         /* not showing mixer strip presently */
 193                         return;
 194                 }
 195         }
 196
 197         if (current_mixer_strip == 0) {
 198                 create_editor_mixer ();
 199         }
 200
 201         /* might be nothing to do */
 202
 203         if (current_mixer_strip->route() == at->route()) {
 204                 return;
 205         }
 206
 207         current_mixer_strip->set_route (at->route());
 208         current_mixer_strip->set_width_enum (editor_mixer_strip_width, (void*) this);
 209 }
 210
 211 double current = 0.0;
 212
 213 void
 214 Editor::update_current_screen ()
 215 {
 216         if (_pending_locate_request) {
 217                 /* we don't update things when there's a pending locate request, otherwise
 218                    when the editor requests a locate there is a chance that this method
 219                    will move the playhead before the locate request is processed, causing
 220                    a visual glitch. */
 221                 return;
 222         }
 223
 224         if (session && session->engine().running()) {
 225
 226                 nframes64_t const frame = session->audible_frame();
 227
 228                 if (_dragging_playhead) {
 229                         goto almost_done;
 230                 }
 231
 232                 /* only update if the playhead is on screen or we are following it */
 233
 234                 if (_follow_playhead && session->requested_return_frame() < 0) {
 235
 236                         //playhead_cursor->canvas_item.show();
 237
 238                         if (frame != last_update_frame) {
 239
 240
 241 #undef CONTINUOUS_SCROLL
 242 #ifndef  CONTINUOUS_SCROLL
 243                                 if (frame < leftmost_frame || frame > leftmost_frame + current_page_frames()) {
 244
 245                                         if (session->transport_speed() < 0) {
 246                                                 if (frame > (current_page_frames()/2)) {
 247                                                         center_screen (frame-(current_page_frames()/2));
 248                                                 } else {
 249                                                         center_screen (current_page_frames()/2);
 250                                                 }
 251                                         } else {
 252                                                 center_screen (frame+(current_page_frames()/2));
 253                                         }
 254                                 }
 255
 256                                 playhead_cursor->set_position (frame);
 257
 258 #else  // CONTINUOUS_SCROLL
 259
 260                                 /* don't do continuous scroll till the new position is in the rightmost quarter of the
 261                                    editor canvas
 262                                 */
 263
 264                                 if (session->transport_speed()) {
 265                                         double target = ((double)frame - (double)current_page_frames()/2.0) / frames_per_unit;
 266                                         if (target <= 0.0) target = 0.0;
 267                                         if ( fabs(target - current) < current_page_frames()/frames_per_unit ) {
 268                                                 target = (target * 0.15) + (current * 0.85);
 269                                         } else {
 270                                                 /* relax */
 271                                         }
 272                                         //printf("frame: %d,  cpf: %d,  fpu: %6.6f, current: %6.6f, target : %6.6f\n", frame, current_page_frames(), frames_per_unit, current, target );
 273                                         current = target;
 274                                         horizontal_adjustment.set_value ( current );
 275                                 }
 276
 277                                 playhead_cursor->set_position (frame);
 278
 279 #endif // CONTINUOUS_SCROLL
 280
 281                         }
 282
 283                 } else {
 284                         if (frame != last_update_frame) {
 285                                 playhead_cursor->set_position (frame);
 286                         }
 287                 }
 288
 289           almost_done:
 290                 last_update_frame = frame;
 291                 if (current_mixer_strip) {
 292                         current_mixer_strip->fast_update ();
 293                 }
 294
 295         }
 296 }
 297
 298 void
 299 Editor::current_mixer_strip_removed ()
 300 {
 301         if (current_mixer_strip) {
 302                 /* it is being deleted elsewhere */
 303                 current_mixer_strip = 0;
 304         }
 305 }
 306
 307 void
 308 Editor::current_mixer_strip_hidden ()
 309 {
 310         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
 311
 312                 RouteTimeAxisView* tmp;
 313
 314                 if ((tmp = dynamic_cast<RouteTimeAxisView*>(*i)) != 0) {
 315                         if (tmp->route() == current_mixer_strip->route()) {
 316                                 (*i)->set_selected (false);
 317                                 break;
 318                         }
 319                 }
 320         }
 321
 322         Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
 323         if (act) {
 324                 Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
 325                 tact->set_active (false);
 326         }
 327 }
 328
 329 void
 330 Editor::session_going_away ()
 331 {
 332         _have_idled = false;
 333
 334         for (vector<sigc::connection>::iterator i = session_connections.begin(); i != session_connections.end(); ++i) {
 335                 (*i).disconnect ();
 336         }
 337
 338         stop_scrolling ();
 339         selection->clear ();
 340         cut_buffer->clear ();
 341
 342         clicked_regionview = 0;
 343         clicked_axisview = 0;
 344         clicked_routeview = 0;
 345         clicked_crossfadeview = 0;
 346         entered_regionview = 0;
 347         entered_track = 0;
 348         last_update_frame = 0;
 349         _drag = 0;
 350
 351         playhead_cursor->canvas_item.hide ();
 352
 353         /* hide all tracks */
 354
 355         _routes->hide_all_tracks (false);
 356
 357         /* rip everything out of the list displays */
 358
 359         _regions->clear ();
 360         _routes->clear ();
 361         _route_groups->clear ();
 362
 363         edit_point_clock_connection_a.disconnect();
 364         edit_point_clock_connection_b.disconnect();
 365
 366         edit_point_clock.set_session (0);
 367         zoom_range_clock.set_session (0);
 368         nudge_clock.set_session (0);
 369
 370         editor_list_button.set_active(false);
 371         editor_list_button.set_sensitive(false);
 372
 373         /* clear tempo/meter rulers */
 374         remove_metric_marks ();
 375         hide_measures ();
 376         clear_marker_display ();
 377
 378         delete current_bbt_points;
 379         current_bbt_points = 0;
 380
 381         /* get rid of any existing editor mixer strip */
 382
 383         if (current_mixer_strip) {
 384                 if (current_mixer_strip->get_parent() != 0) {
 385                         global_hpacker.remove (*current_mixer_strip);
 386                 }
 387                 delete current_mixer_strip;
 388                 current_mixer_strip = 0;
 389         }
 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_enum()));
 404         }
 405 }
 406