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 #include "gui_thread.h"
  39
  40 #include "i18n.h"
  41
  42 using namespace std;
  43 using namespace Gtkmm2ext;
  44 using namespace PBD;
  45
  46 void
  47 Editor::editor_mixer_button_toggled ()
  48 {
  49         Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
  50         if (act) {
  51                 Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
  52                 show_editor_mixer (tact->get_active());
  53         }
  54 }
  55
  56 void
  57 Editor::editor_list_button_toggled ()
  58 {
  59         Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-list"));
  60         if (act) {
  61                 Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
  62                 show_editor_list (tact->get_active());
  63         }
  64 }
  65
  66 void
  67 Editor::cms_deleted ()
  68 {
  69         current_mixer_strip = 0;
  70 }
  71
  72 void
  73 Editor::show_editor_mixer (bool yn)
  74 {
  75         boost::shared_ptr<ARDOUR::Route> r;
  76
  77         show_editor_mixer_when_tracks_arrive = false;
  78
  79         if (!_session) {
  80                 show_editor_mixer_when_tracks_arrive = yn;
  81                 return;
  82         }
  83
  84         if (yn) {
  85
  86                 if (selection->tracks.empty()) {
  87
  88                         if (track_views.empty()) {
  89                                 show_editor_mixer_when_tracks_arrive = true;
  90                                 return;
  91                         }
  92
  93                         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
  94                                 RouteTimeAxisView* atv;
  95
  96                                 if ((atv = dynamic_cast<RouteTimeAxisView*> (*i)) != 0) {
  97                                         r = atv->route();
  98                                         break;
  99                                 }
 100                         }
 101
 102                 } else {
 103                         sort_track_selection ();
 104
 105                         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
 106                                 RouteTimeAxisView* atv;
 107
 108                                 if ((atv = dynamic_cast<RouteTimeAxisView*> (*i)) != 0) {
 109                                         r = atv->route();
 110                                         break;
 111                                 }
 112                         }
 113                 }
 114
 115                 if (r) {
 116                         if (current_mixer_strip == 0) {
 117                                 create_editor_mixer ();
 118                         }
 119
 120                         current_mixer_strip->set_route (r);
 121                         current_mixer_strip->set_width_enum (editor_mixer_strip_width, (void*) this);
 122                 }
 123
 124                 if (current_mixer_strip->get_parent() == 0) {
 125                         global_hpacker.pack_start (*current_mixer_strip, Gtk::PACK_SHRINK );
 126                         global_hpacker.reorder_child (*current_mixer_strip, 0);
 127                         current_mixer_strip->show_all ();
 128                 }
 129
 130         } else {
 131
 132                 if (current_mixer_strip) {
 133                         if (current_mixer_strip->get_parent() != 0) {
 134                                 global_hpacker.remove (*current_mixer_strip);
 135                         }
 136                 }
 137         }
 138
 139 #ifdef GTKOSX
 140         /* XXX gtk problem here */
 141         ensure_all_elements_drawn();
 142 #endif
 143 }
 144
 145 #ifdef GTKOSX
 146 void
 147 Editor::ensure_all_elements_drawn ()
 148 {
 149         controls_layout.queue_draw ();
 150         ruler_label_event_box.queue_draw ();
 151         time_button_event_box.queue_draw ();
 152 }
 153 #endif
 154
 155 void
 156 Editor::show_editor_list (bool yn)
 157 {
 158         if (yn) {
 159                 the_notebook.show();
 160         } else {
 161                 the_notebook.hide();
 162         }
 163 }
 164
 165 void
 166 Editor::create_editor_mixer ()
 167 {
 168         current_mixer_strip = new MixerStrip (*ARDOUR_UI::instance()->the_mixer(),
 169                                               _session,
 170                                               false);
 171         current_mixer_strip->Hiding.connect (sigc::mem_fun(*this, &Editor::current_mixer_strip_hidden));
 172         current_mixer_strip->CatchDeletion.connect (*this, boost::bind (&Editor::current_mixer_strip_removed, this), gui_context());
 173 #ifdef GTKOSX
 174         current_mixer_strip->WidthChanged.connect (sigc::mem_fun(*this, &Editor::ensure_all_elements_drawn));
 175 #endif
 176         current_mixer_strip->set_embedded (true);
 177 }
 178
 179 void
 180 Editor::set_selected_mixer_strip (TimeAxisView& view)
 181 {
 182         RouteTimeAxisView* at;
 183
 184         if (!_session || (at = dynamic_cast<RouteTimeAxisView*>(&view)) == 0) {
 185                 return;
 186         }
 187
 188         Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
 189
 190         if (act) {
 191                 Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
 192                 if (!tact || !tact->get_active()) {
 193                         /* not showing mixer strip presently */
 194                         return;
 195                 }
 196         }
 197
 198         if (current_mixer_strip == 0) {
 199                 create_editor_mixer ();
 200         }
 201
 202         /* might be nothing to do */
 203
 204         if (current_mixer_strip->route() == at->route()) {
 205                 return;
 206         }
 207
 208         current_mixer_strip->set_route (at->route());
 209         current_mixer_strip->set_width_enum (editor_mixer_strip_width, (void*) this);
 210 }
 211
 212 double current = 0.0;
 213
 214 void
 215 Editor::update_current_screen ()
 216 {
 217         if (_pending_locate_request) {
 218                 /* we don't update things when there's a pending locate request, otherwise
 219                    when the editor requests a locate there is a chance that this method
 220                    will move the playhead before the locate request is processed, causing
 221                    a visual glitch. */
 222                 return;
 223         }
 224
 225         if (_session && _session->engine().running()) {
 226
 227                 nframes64_t const frame = _session->audible_frame();
 228
 229                 if (_dragging_playhead) {
 230                         goto almost_done;
 231                 }
 232
 233                 /* only update if the playhead is on screen or we are following it */
 234
 235                 if (_follow_playhead && _session->requested_return_frame() < 0) {
 236
 237                         //playhead_cursor->canvas_item.show();
 238
 239                         if (frame != last_update_frame) {
 240
 241
 242 #undef CONTINUOUS_SCROLL
 243 #ifndef  CONTINUOUS_SCROLL
 244                                 if (frame < leftmost_frame || frame > leftmost_frame + current_page_frames()) {
 245
 246                                         if (_session->transport_speed() < 0) {
 247                                                 if (frame > (current_page_frames()/2)) {
 248                                                         center_screen (frame-(current_page_frames()/2));
 249                                                 } else {
 250                                                         center_screen (current_page_frames()/2);
 251                                                 }
 252                                         } else {
 253                                                 center_screen (frame+(current_page_frames()/2));
 254                                         }
 255                                 }
 256
 257                                 playhead_cursor->set_position (frame);
 258
 259 #else  // CONTINUOUS_SCROLL
 260
 261                                 /* don't do continuous scroll till the new position is in the rightmost quarter of the
 262                                    editor canvas
 263                                 */
 264
 265                                 if (_session->transport_speed()) {
 266                                         double target = ((double)frame - (double)current_page_frames()/2.0) / frames_per_unit;
 267                                         if (target <= 0.0) target = 0.0;
 268                                         if ( fabs(target - current) < current_page_frames()/frames_per_unit ) {
 269                                                 target = (target * 0.15) + (current * 0.85);
 270                                         } else {
 271                                                 /* relax */
 272                                         }
 273                                         //printf("frame: %d,  cpf: %d,  fpu: %6.6f, current: %6.6f, target : %6.6f\n", frame, current_page_frames(), frames_per_unit, current, target );
 274                                         current = target;
 275                                         horizontal_adjustment.set_value ( current );
 276                                 }
 277
 278                                 playhead_cursor->set_position (frame);
 279
 280 #endif // CONTINUOUS_SCROLL
 281
 282                         }
 283
 284                 } else {
 285                         if (frame != last_update_frame) {
 286                                 playhead_cursor->set_position (frame);
 287                         }
 288                 }
 289
 290           almost_done:
 291                 last_update_frame = frame;
 292                 if (current_mixer_strip) {
 293                         current_mixer_strip->fast_update ();
 294                 }
 295
 296         }
 297 }
 298
 299 void
 300 Editor::current_mixer_strip_removed ()
 301 {
 302         if (current_mixer_strip) {
 303                 /* it is being deleted elsewhere */
 304                 current_mixer_strip = 0;
 305         }
 306 }
 307
 308 void
 309 Editor::current_mixer_strip_hidden ()
 310 {
 311         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
 312
 313                 RouteTimeAxisView* tmp;
 314
 315                 if ((tmp = dynamic_cast<RouteTimeAxisView*>(*i)) != 0) {
 316                         if (tmp->route() == current_mixer_strip->route()) {
 317                                 (*i)->set_selected (false);
 318                                 break;
 319                         }
 320                 }
 321         }
 322
 323         Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
 324         if (act) {
 325                 Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
 326                 tact->set_active (false);
 327         }
 328 }
 329
 330 void
 331 Editor::session_going_away ()
 332 {
 333         _have_idled = false;
 334
 335         _session_connections.drop_connections ();
 336
 337         stop_scrolling ();
 338         selection->clear ();
 339         cut_buffer->clear ();
 340
 341         clicked_regionview = 0;
 342         clicked_axisview = 0;
 343         clicked_routeview = 0;
 344         clicked_crossfadeview = 0;
 345         entered_regionview = 0;
 346         entered_track = 0;
 347         last_update_frame = 0;
 348         _drag = 0;
 349
 350         playhead_cursor->canvas_item.hide ();
 351
 352         /* rip everything out of the list displays */
 353
 354         _regions->clear ();
 355         _routes->clear ();
 356         _route_groups->clear ();
 357
 358         /* do this first so that deleting a track doesn't reset cms to null
 359            and thus cause a leak.
 360         */
 361
 362         if (current_mixer_strip) {
 363                 if (current_mixer_strip->get_parent() != 0) {
 364                         global_hpacker.remove (*current_mixer_strip);
 365                 }
 366                 delete current_mixer_strip;
 367                 current_mixer_strip = 0;
 368         }
 369
 370         /* delete all trackviews */
 371
 372         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
 373                 delete *i;
 374         }
 375         track_views.clear ();
 376
 377         zoom_range_clock.set_session (0);
 378         nudge_clock.set_session (0);
 379
 380         editor_list_button.set_active(false);
 381         editor_list_button.set_sensitive(false);
 382
 383         /* clear tempo/meter rulers */
 384         remove_metric_marks ();
 385         hide_measures ();
 386         clear_marker_display ();
 387
 388         delete current_bbt_points;
 389         current_bbt_points = 0;
 390
 391         /* get rid of any existing editor mixer strip */
 392
 393         WindowTitle title(Glib::get_application_name());
 394         title += _("Editor");
 395
 396         set_title (title.get_string());
 397
 398         SessionHandlePtr::session_going_away ();
 399 }
 400
 401 void
 402 Editor::maybe_add_mixer_strip_width (XMLNode& node)
 403 {
 404         if (current_mixer_strip) {
 405                 node.add_property ("mixer-width", enum_2_string (current_mixer_strip->get_width_enum()));
 406         }
 407 }
 408