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_deleted ()
  62 {
  63         current_mixer_strip = 0;
  64 }
  65
  66 void
  67 Editor::show_editor_mixer (bool yn)
  68 {
  69         show_editor_mixer_when_tracks_arrive = false;
  70
  71         if (yn) {
  72
  73                 if (current_mixer_strip == 0) {
  74
  75                         if (selection->tracks.empty()) {
  76
  77                                 if (track_views.empty()) {
  78                                         show_editor_mixer_when_tracks_arrive = true;
  79                                         return;
  80                                 }
  81
  82                                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
  83                                         AudioTimeAxisView* atv;
  84
  85                                         if ((atv = dynamic_cast<AudioTimeAxisView*> (*i)) != 0) {
  86
  87                                                 current_mixer_strip = new MixerStrip (*ARDOUR_UI::instance()->the_mixer(),
  88                                                                                       *session,
  89                                                                                       atv->route(), false);
  90
  91                                                 current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::cms_deleted));
  92                                                 break;
  93                                         }
  94                                 }
  95
  96                         } else {
  97
  98                                 sort_track_selection ();
  99
 100                                 for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
 101                                         AudioTimeAxisView* atv;
 102
 103                                         if ((atv = dynamic_cast<AudioTimeAxisView*> (*i)) != 0) {
 104
 105                                                 current_mixer_strip = new MixerStrip (*ARDOUR_UI::instance()->the_mixer(),
 106                                                                                       *session,
 107                                                                                       atv->route(), false);
 108                                                 current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::cms_deleted));
 109                                                 break;
 110                                         }
 111                                 }
 112
 113                         }
 114
 115                         if (current_mixer_strip == 0) {
 116                                 return;
 117                         }
 118                 }
 119
 120                 if (current_mixer_strip->get_parent() == 0) {
 121                         current_mixer_strip->set_embedded (true);
 122                         current_mixer_strip->Hiding.connect (mem_fun(*this, &Editor::current_mixer_strip_hidden));
 123                         current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::current_mixer_strip_removed));
 124                         current_mixer_strip->set_width (editor_mixer_strip_width, (void*) this);
 125
 126                         global_hpacker.pack_start (*current_mixer_strip, Gtk::PACK_SHRINK );
 127                         global_hpacker.reorder_child (*current_mixer_strip, 0);
 128
 129                         current_mixer_strip->show_all ();
 130                 }
 131
 132         } else {
 133
 134                 if (current_mixer_strip) {
 135                         editor_mixer_strip_width = current_mixer_strip->get_width ();
 136                         if (current_mixer_strip->get_parent() != 0) {
 137                                 global_hpacker.remove (*current_mixer_strip);
 138                         }
 139                 }
 140         }
 141 }
 142
 143 void
 144 Editor::show_editor_list (bool yn)
 145 {
 146         if (yn) {
 147                 the_notebook.show();
 148         } else {
 149                 the_notebook.hide();
 150         }
 151 }
 152
 153 void
 154 Editor::set_selected_mixer_strip (TimeAxisView& view)
 155 {
 156         RouteTimeAxisView* rt;
 157         bool show = false;
 158
 159         if (!session || (rt = dynamic_cast<RouteTimeAxisView*>(&view)) == 0) {
 160                 return;
 161         }
 162
 163         if (current_mixer_strip) {
 164
 165                 /* might be nothing to do */
 166
 167                 if (current_mixer_strip->route() == rt->route()) {
 168                         return;
 169                 }
 170
 171                 if (current_mixer_strip->get_parent()) {
 172                         show = true;
 173                 }
 174                 delete current_mixer_strip;
 175                 current_mixer_strip = 0;
 176         }
 177
 178         current_mixer_strip = new MixerStrip (*ARDOUR_UI::instance()->the_mixer(),
 179                                               *session,
 180                                               rt->route());
 181         current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::cms_deleted));
 182
 183         if (show) {
 184                 show_editor_mixer (true);
 185         }
 186 }
 187
 188 double current = 0.0;
 189 bool currentInitialized = 0;
 190
 191 void
 192 Editor::update_current_screen ()
 193 {
 194         if (session && session->engine().running()) {
 195
 196                 nframes_t frame;
 197
 198                 frame = session->audible_frame();
 199
 200                 if (_dragging_playhead) {
 201                         goto almost_done;
 202                 }
 203
 204                 /* only update if the playhead is on screen or we are following it */
 205
 206                 if (_follow_playhead) {
 207
 208                         playhead_cursor->canvas_item.show();
 209
 210                         if (frame != last_update_frame) {
 211
 212
 213 #undef CONTINUOUS_SCROLL
 214 #ifndef  CONTINUOUS_SCROLL
 215                                 if (frame < leftmost_frame || frame > leftmost_frame + current_page_frames()) {
 216
 217                                         if (session->transport_speed() < 0) {
 218                                                 if (frame > (current_page_frames()/2)) {
 219                                                         center_screen (frame-(current_page_frames()/2));
 220                                                 } else {
 221                                                         center_screen (current_page_frames()/2);
 222                                                 }
 223                                         } else {
 224                                                 center_screen (frame+(current_page_frames()/2));
 225                                         }
 226                                 }
 227
 228                                 playhead_cursor->set_position (frame);
 229
 230 #else  // CONTINUOUS_SCROLL
 231
 232                                 /* don't do continuous scroll till the new position is in the rightmost quarter of the
 233                                    editor canvas
 234                                 */
 235
 236                                 if (session->transport_speed()) {
 237                                         double target = ((double)frame - (double)current_page_frames()/2.0) / frames_per_unit;
 238                                         if (target <= 0.0) target = 0.0;
 239                                         if ( fabs(target - current) < current_page_frames()/frames_per_unit ) {
 240                                                 target = (target * 0.15) + (current * 0.85);
 241                                         } else {
 242                                                 /* relax */
 243                                         }
 244                                         //printf("frame: %d,  cpf: %d,  fpu: %6.6f, current: %6.6f, target : %6.6f\n", frame, current_page_frames(), frames_per_unit, current, target );
 245                                         current = target;
 246                                         horizontal_adjustment.set_value ( current );
 247                                 }
 248
 249                                 playhead_cursor->set_position (frame);
 250
 251 #endif // CONTINUOUS_SCROLL
 252
 253                         }
 254
 255                 } else {
 256
 257                         if (frame != last_update_frame) {
 258                                 if (frame < leftmost_frame || frame > leftmost_frame + current_page_frames()) {
 259                                         playhead_cursor->canvas_item.hide();
 260                                 } else {
 261                                         playhead_cursor->set_position (frame);
 262                                 }
 263                         }
 264                 }
 265
 266           almost_done:
 267                 last_update_frame = frame;
 268
 269                 if (current_mixer_strip) {
 270                         current_mixer_strip->fast_update ();
 271                 }
 272
 273         }
 274 }
 275
 276 void
 277 Editor::current_mixer_strip_removed ()
 278 {
 279         if (current_mixer_strip) {
 280                 /* it is being deleted */
 281                 current_mixer_strip = 0;
 282         }
 283 }
 284
 285 void
 286 Editor::current_mixer_strip_hidden ()
 287 {
 288         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
 289
 290                 AudioTimeAxisView* tmp;
 291
 292                 if ((tmp = dynamic_cast<AudioTimeAxisView*>(*i)) != 0) {
 293                         if (tmp->route() == current_mixer_strip->route()) {
 294                                 (*i)->set_selected (false);
 295                                 break;
 296                         }
 297                 }
 298         }
 299
 300         Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
 301         if (act) {
 302                 Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
 303                 tact->set_active (false);
 304         }
 305 }
 306
 307 void
 308 Editor::session_going_away ()
 309 {
 310         for (vector<sigc::connection>::iterator i = session_connections.begin(); i != session_connections.end(); ++i) {
 311                 (*i).disconnect ();
 312         }
 313
 314         stop_scrolling ();
 315         selection->clear ();
 316         cut_buffer->clear ();
 317
 318         clicked_regionview = 0;
 319         clicked_axisview = 0;
 320         clicked_routeview = 0;
 321         clicked_crossfadeview = 0;
 322         entered_regionview = 0;
 323         entered_track = 0;
 324         latest_regionview = 0;
 325         last_update_frame = 0;
 326         drag_info.item = 0;
 327         last_canvas_frame = 0;
 328
 329         /* hide all tracks */
 330
 331         hide_all_tracks (false);
 332
 333         /* rip everything out of the list displays */
 334
 335         region_list_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
 336         route_list_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
 337         named_selection_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
 338         edit_group_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
 339
 340         region_list_model->clear ();
 341         route_display_model->clear ();
 342         named_selection_model->clear ();
 343         group_model->clear ();
 344
 345         region_list_display.set_model (region_list_model);
 346         route_list_display.set_model (route_display_model);
 347         named_selection_display.set_model (named_selection_model);
 348         edit_group_display.set_model (group_model);
 349
 350         edit_cursor_clock.set_session (0);
 351         zoom_range_clock.set_session (0);
 352         nudge_clock.set_session (0);
 353
 354         /* put editor/mixer toggle button in off position and disable until a new session is loaded */
 355
 356         editor_mixer_button.set_active(false);
 357         editor_mixer_button.set_sensitive(false);
 358         editor_list_button.set_active(false);
 359         editor_list_button.set_sensitive(false);
 360
 361         /* clear tempo/meter rulers */
 362
 363         remove_metric_marks ();
 364         hide_measures ();
 365         clear_marker_display ();
 366
 367         if (current_bbt_points) {
 368                 delete current_bbt_points;
 369                 current_bbt_points = 0;
 370         }
 371
 372         /* mixer strip will be deleted all by itself
 373            when its route is deleted.
 374         */
 375
 376         current_mixer_strip = 0;
 377
 378         WindowTitle title(Glib::get_application_name());
 379         title += _("Editor");
 380
 381         set_title (title.get_string());
 382
 383         session = 0;
 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()));
 391         }
 392 }