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::editor_list_button_toggled ()
  52 {
  53         Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-list"));
  54         if (act) {
  55                 Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
  56                 show_editor_list (tact->get_active());
  57         }
  58 }
  59
  60 void
  61 Editor::cms_new (boost::shared_ptr<ARDOUR::Route> r)
  62 {
  63         current_mixer_strip = new MixerStrip (*ARDOUR_UI::instance()->the_mixer(), *session, r);
  64         current_mixer_strip->GoingAway.connect (mem_fun (*this, &Editor::cms_deleted));
  65 }
  66
  67 void
  68 Editor::cms_deleted ()
  69 {
  70         current_mixer_strip = 0;
  71 }
  72
  73 void
  74 Editor::show_editor_mixer (bool yn)
  75 {
  76         show_editor_mixer_when_tracks_arrive = false;
  77
  78         if (yn) {
  79
  80                 if (current_mixer_strip == 0) {
  81
  82                         if (selection->tracks.empty()) {
  83
  84                                 if (track_views.empty()) {
  85                                         show_editor_mixer_when_tracks_arrive = true;
  86                                         return;
  87                                 }
  88
  89                                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
  90                                         AudioTimeAxisView* atv;
  91
  92                                         if ((atv = dynamic_cast<AudioTimeAxisView*> (*i)) != 0) {
  93                                                 cms_new (atv->route ());
  94                                                 break;
  95                                         }
  96                                 }
  97
  98                         } else {
  99
 100                                 sort_track_selection ();
 101
 102                                 for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
 103                                         AudioTimeAxisView* atv;
 104
 105                                         if ((atv = dynamic_cast<AudioTimeAxisView*> (*i)) != 0) {
 106                                                 cms_new (atv->route ());
 107                                                 break;
 108                                         }
 109                                 }
 110
 111                         }
 112
 113                         if (current_mixer_strip == 0) {
 114                                 return;
 115                         }
 116                 }
 117
 118                 if (current_mixer_strip->get_parent() == 0) {
 119                         current_mixer_strip->set_embedded (true);
 120                         current_mixer_strip->Hiding.connect (mem_fun(*this, &Editor::current_mixer_strip_hidden));
 121                         current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::current_mixer_strip_removed));
 122                         current_mixer_strip->set_width (editor_mixer_strip_width, (void*) this);
 123
 124                         global_hpacker.pack_start (*current_mixer_strip, Gtk::PACK_SHRINK );
 125                         global_hpacker.reorder_child (*current_mixer_strip, 0);
 126
 127                         current_mixer_strip->show_all ();
 128                 }
 129
 130         } else {
 131
 132                 if (current_mixer_strip) {
 133                         editor_mixer_strip_width = current_mixer_strip->get_width ();
 134                         if (current_mixer_strip->get_parent() != 0) {
 135                                 global_hpacker.remove (*current_mixer_strip);
 136                         }
 137                 }
 138         }
 139 }
 140
 141 void
 142 Editor::show_editor_list (bool yn)
 143 {
 144         if (yn) {
 145                 the_notebook.show();
 146         } else {
 147                 the_notebook.hide();
 148         }
 149 }
 150
 151 void
 152 Editor::set_selected_mixer_strip (TimeAxisView& view)
 153 {
 154         RouteTimeAxisView* rt;
 155         bool show = false;
 156
 157         if (!session || (rt = dynamic_cast<RouteTimeAxisView*>(&view)) == 0) {
 158                 return;
 159         }
 160
 161         if (current_mixer_strip) {
 162
 163                 /* might be nothing to do */
 164
 165                 if (current_mixer_strip->route() == rt->route()) {
 166                         return;
 167                 }
 168
 169                 if (current_mixer_strip->get_parent()) {
 170                         show = true;
 171                 }
 172                 delete current_mixer_strip;
 173                 current_mixer_strip = 0;
 174         }
 175
 176         current_mixer_strip = new MixerStrip (*ARDOUR_UI::instance()->the_mixer(),
 177                                               *session,
 178                                               rt->route(), false);
 179         current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::cms_deleted));
 180
 181         if (show) {
 182                 show_editor_mixer (true);
 183         }
 184 }
 185
 186 double current = 0.0;
 187 bool currentInitialized = 0;
 188
 189 void
 190 Editor::update_current_screen ()
 191 {
 192         if (session && session->engine().running()) {
 193
 194                 nframes64_t frame;
 195
 196                 frame = session->audible_frame();
 197
 198                 if (_dragging_playhead) {
 199                         goto almost_done;
 200                 }
 201
 202                 /* only update if the playhead is on screen or we are following it */
 203
 204                 if (_follow_playhead && session->requested_return_frame() < 0) {
 205
 206                         playhead_cursor->canvas_item.show();
 207
 208                         if (frame != last_update_frame) {
 209
 210
 211 #undef CONTINUOUS_SCROLL
 212 #ifndef  CONTINUOUS_SCROLL
 213                                 if (frame < leftmost_frame || frame > leftmost_frame + current_page_frames()) {
 214
 215                                         if (session->transport_speed() < 0) {
 216                                                 if (frame > (current_page_frames()/2)) {
 217                                                         center_screen (frame-(current_page_frames()/2));
 218                                                 } else {
 219                                                         center_screen (current_page_frames()/2);
 220                                                 }
 221                                         } else {
 222                                                 center_screen (frame+(current_page_frames()/2));
 223                                         }
 224                                 }
 225
 226                                 playhead_cursor->set_position (frame);
 227
 228 #else  // CONTINUOUS_SCROLL
 229
 230                                 /* don't do continuous scroll till the new position is in the rightmost quarter of the
 231                                    editor canvas
 232                                 */
 233
 234                                 if (session->transport_speed()) {
 235                                         double target = ((double)frame - (double)current_page_frames()/2.0) / frames_per_unit;
 236                                         if (target <= 0.0) target = 0.0;
 237                                         if ( fabs(target - current) < current_page_frames()/frames_per_unit ) {
 238                                                 target = (target * 0.15) + (current * 0.85);
 239                                         } else {
 240                                                 /* relax */
 241                                         }
 242                                         //printf("frame: %d,  cpf: %d,  fpu: %6.6f, current: %6.6f, target : %6.6f\n", frame, current_page_frames(), frames_per_unit, current, target );
 243                                         current = target;
 244                                         horizontal_adjustment.set_value ( current );
 245                                 }
 246
 247                                 playhead_cursor->set_position (frame);
 248
 249 #endif // CONTINUOUS_SCROLL
 250
 251                         }
 252
 253                 } else {
 254
 255                         if (frame != last_update_frame) {
 256                                 playhead_cursor->set_position (frame);
 257                         }
 258                 }
 259
 260           almost_done:
 261                 last_update_frame = frame;
 262
 263                 if (current_mixer_strip) {
 264                         current_mixer_strip->fast_update ();
 265                 }
 266
 267         }
 268 }
 269
 270 void
 271 Editor::current_mixer_strip_removed ()
 272 {
 273         if (current_mixer_strip) {
 274                 /* it is being deleted */
 275                 current_mixer_strip = 0;
 276         }
 277 }
 278
 279 void
 280 Editor::current_mixer_strip_hidden ()
 281 {
 282         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
 283
 284                 AudioTimeAxisView* tmp;
 285
 286                 if ((tmp = dynamic_cast<AudioTimeAxisView*>(*i)) != 0) {
 287                         if (tmp->route() == current_mixer_strip->route()) {
 288                                 (*i)->set_selected (false);
 289                                 break;
 290                         }
 291                 }
 292         }
 293
 294         Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
 295         if (act) {
 296                 Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
 297                 tact->set_active (false);
 298         }
 299 }
 300
 301 void
 302 Editor::session_going_away ()
 303 {
 304         _have_idled = false;
 305
 306         for (vector<sigc::connection>::iterator i = session_connections.begin(); i != session_connections.end(); ++i) {
 307                 (*i).disconnect ();
 308         }
 309
 310         stop_scrolling ();
 311         selection->clear ();
 312         cut_buffer->clear ();
 313
 314         clicked_regionview = 0;
 315         clicked_axisview = 0;
 316         clicked_routeview = 0;
 317         clicked_crossfadeview = 0;
 318         entered_regionview = 0;
 319         entered_track = 0;
 320         last_update_frame = 0;
 321         drag_info.item = 0;
 322         last_canvas_frame = 0;
 323
 324         /* hide all tracks */
 325
 326         hide_all_tracks (false);
 327
 328         /* rip everything out of the list displays */
 329
 330         region_list_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
 331         route_list_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
 332         named_selection_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
 333         edit_group_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
 334
 335         region_list_model->clear ();
 336         route_display_model->clear ();
 337         named_selection_model->clear ();
 338         group_model->clear ();
 339
 340         region_list_display.set_model (region_list_model);
 341         route_list_display.set_model (route_display_model);
 342         named_selection_display.set_model (named_selection_model);
 343         edit_group_display.set_model (group_model);
 344
 345         edit_point_clock_connection_a.disconnect();
 346         edit_point_clock_connection_b.disconnect();
 347
 348         edit_point_clock.set_session (0);
 349         zoom_range_clock.set_session (0);
 350         nudge_clock.set_session (0);
 351
 352         /* put editor/mixer toggle button in off position and disable until a new session is loaded */
 353
 354         editor_mixer_button.set_active(false);
 355         editor_mixer_button.set_sensitive(false);
 356         editor_list_button.set_active(false);
 357         editor_list_button.set_sensitive(false);
 358
 359         /* clear tempo/meter rulers */
 360         remove_metric_marks ();
 361         hide_measures ();
 362         clear_marker_display ();
 363
 364         if (current_bbt_points) {
 365                 delete current_bbt_points;
 366                 current_bbt_points = 0;
 367         }
 368
 369         /* mixer strip will be deleted all by itself
 370            when its route is deleted.
 371         */
 372
 373         current_mixer_strip = 0;
 374
 375         WindowTitle title(Glib::get_application_name());
 376         title += _("Editor");
 377
 378         set_title (title.get_string());
 379
 380         session = 0;
 381 }
 382
 383 void
 384 Editor::maybe_add_mixer_strip_width (XMLNode& node)
 385 {
 386         if (current_mixer_strip) {
 387                 node.add_property ("mixer-width", enum_2_string (current_mixer_strip->get_width()));
 388         }
 389 }
 390