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