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     $Id$
  19 */
  20
  21 #include <gtkmm2ext/utils.h>
  22 #include <ardour/audioengine.h>
  23
  24 #include "editor.h"
  25 #include "mixer_strip.h"
  26 #include "ardour_ui.h"
  27 #include "selection.h"
  28 #include "audio_time_axis.h"
  29 #include "actions.h"
  30
  31 #include "i18n.h"
  32
  33 void
  34 Editor::editor_mixer_button_toggled ()
  35 {
  36         Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
  37         if (act) {
  38                 Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
  39                 show_editor_mixer (tact->get_active());
  40         }
  41 }
  42
  43 void
  44 Editor::cms_deleted ()
  45 {
  46         current_mixer_strip = 0;
  47 }
  48
  49 void
  50 Editor::show_editor_mixer (bool yn)
  51 {
  52         show_editor_mixer_when_tracks_arrive = false;
  53
  54         if (yn) {
  55
  56                 if (current_mixer_strip == 0) {
  57
  58                         if (selection->tracks.empty()) {
  59
  60                                 if (track_views.empty()) {
  61                                         show_editor_mixer_when_tracks_arrive = true;
  62                                         return;
  63                                 }
  64
  65                                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
  66                                         AudioTimeAxisView* atv;
  67
  68                                         if ((atv = dynamic_cast<AudioTimeAxisView*> (*i)) != 0) {
  69
  70                                                 current_mixer_strip = new MixerStrip (*ARDOUR_UI::instance()->the_mixer(),
  71                                                                                       *session,
  72                                                                                       atv->route(), false);
  73
  74                                                 current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::cms_deleted));
  75                                                 break;
  76                                         }
  77                                 }
  78
  79                         } else {
  80
  81                                 sort_track_selection ();
  82
  83                                 for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
  84                                         AudioTimeAxisView* atv;
  85
  86                                         if ((atv = dynamic_cast<AudioTimeAxisView*> (*i)) != 0) {
  87
  88                                                 current_mixer_strip = new MixerStrip (*ARDOUR_UI::instance()->the_mixer(),
  89                                                                                       *session,
  90                                                                                       atv->route(), false);
  91                                                 current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::cms_deleted));
  92                                                 break;
  93                                         }
  94                                 }
  95
  96                         }
  97
  98                         if (current_mixer_strip == 0) {
  99                                 return;
 100                         }
 101                 }
 102
 103                 if (current_mixer_strip->get_parent() == 0) {
 104                         current_mixer_strip->set_embedded (true);
 105                         current_mixer_strip->Hiding.connect (mem_fun(*this, &Editor::current_mixer_strip_hidden));
 106                         current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::current_mixer_strip_removed));
 107                         current_mixer_strip->set_width (editor_mixer_strip_width);
 108
 109                         global_hpacker.pack_start (*current_mixer_strip, Gtk::PACK_SHRINK );
 110                         global_hpacker.reorder_child (*current_mixer_strip, 0);
 111
 112                         current_mixer_strip->show_all ();
 113                 }
 114
 115         } else {
 116
 117                 if (current_mixer_strip) {
 118                         editor_mixer_strip_width = current_mixer_strip->get_width ();
 119                         if (current_mixer_strip->get_parent() != 0) {
 120                                 global_hpacker.remove (*current_mixer_strip);
 121                         }
 122                 }
 123         }
 124 }
 125
 126 void
 127 Editor::set_selected_mixer_strip (TimeAxisView& view)
 128 {
 129         AudioTimeAxisView* at;
 130         bool show = false;
 131
 132         if (!session || (at = dynamic_cast<AudioTimeAxisView*>(&view)) == 0) {
 133                 return;
 134         }
 135
 136         if (current_mixer_strip) {
 137
 138                 /* might be nothing to do */
 139
 140                 if (current_mixer_strip->route() == at->route()) {
 141                         return;
 142                 }
 143
 144                 if (current_mixer_strip->get_parent()) {
 145                         show = true;
 146                 }
 147                 delete current_mixer_strip;
 148                 current_mixer_strip = 0;
 149         }
 150
 151         current_mixer_strip = new MixerStrip (*ARDOUR_UI::instance()->the_mixer(),
 152                                               *session,
 153                                               at->route());
 154         current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::cms_deleted));
 155
 156         if (show) {
 157                 show_editor_mixer (true);
 158         }
 159 }
 160
 161 double current = 0.0;
 162 bool currentInitialized = 0;
 163
 164 void
 165 Editor::update_current_screen ()
 166 {
 167         if (session && engine.running()) {
 168
 169                 nframes_t frame;
 170
 171                 frame = session->audible_frame();
 172
 173                 if (_dragging_playhead) {
 174                         goto almost_done;
 175                 }
 176
 177                 /* only update if the playhead is on screen or we are following it */
 178
 179                 if (_follow_playhead) {
 180
 181                         playhead_cursor->canvas_item.show();
 182
 183                         if (frame != last_update_frame) {
 184
 185
 186 #undef CONTINUOUS_SCROLL
 187 #ifndef  CONTINUOUS_SCROLL
 188                                 if (frame < leftmost_frame || frame > leftmost_frame + current_page_frames()) {
 189
 190                                         if (session->transport_speed() < 0) {
 191                                                 if (frame > (current_page_frames()/2)) {
 192                                                         center_screen (frame-(current_page_frames()/2));
 193                                                 } else {
 194                                                         center_screen (current_page_frames()/2);
 195                                                 }
 196                                         } else {
 197                                                 center_screen (frame+(current_page_frames()/2));
 198                                         }
 199                                 }
 200
 201                                 playhead_cursor->set_position (frame);
 202
 203 #else  // CONTINUOUS_SCROLL
 204
 205                                 /* don't do continuous scroll till the new position is in the rightmost quarter of the
 206                                    editor canvas
 207                                 */
 208
 209                                 if (session->transport_speed()) {
 210                                         double target = ((double)frame - (double)current_page_frames()/2.0) / frames_per_unit;
 211                                         if (target <= 0.0) target = 0.0;
 212                                         if ( fabs(target - current) < current_page_frames()/frames_per_unit ) {
 213                                                 target = (target * 0.15) + (current * 0.85);
 214                                         } else {
 215                                                 /* relax */
 216                                         }
 217                                         //printf("frame: %d,  cpf: %d,  fpu: %6.6f, current: %6.6f, target : %6.6f\n", frame, current_page_frames(), frames_per_unit, current, target );
 218                                         current = target;
 219                                         horizontal_adjustment.set_value ( current );
 220                                 }
 221
 222                                 playhead_cursor->set_position (frame);
 223
 224 #endif // CONTINUOUS_SCROLL
 225
 226                         }
 227
 228                 } else {
 229
 230                         if (frame != last_update_frame) {
 231                                 if (frame < leftmost_frame || frame > leftmost_frame + current_page_frames()) {
 232                                         playhead_cursor->canvas_item.hide();
 233                                 } else {
 234                                         playhead_cursor->set_position (frame);
 235                                 }
 236                         }
 237                 }
 238
 239           almost_done:
 240                 last_update_frame = frame;
 241
 242                 if (current_mixer_strip) {
 243                         current_mixer_strip->fast_update ();
 244                 }
 245
 246         }
 247 }
 248
 249 void
 250 Editor::current_mixer_strip_removed ()
 251 {
 252         if (current_mixer_strip) {
 253                 /* it is being deleted */
 254                 current_mixer_strip = 0;
 255         }
 256 }
 257
 258 void
 259 Editor::current_mixer_strip_hidden ()
 260 {
 261         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
 262
 263                 AudioTimeAxisView* tmp;
 264
 265                 if ((tmp = dynamic_cast<AudioTimeAxisView*>(*i)) != 0) {
 266                         if (tmp->route() == current_mixer_strip->route()) {
 267                                 (*i)->set_selected (false);
 268                                 break;
 269                         }
 270                 }
 271         }
 272
 273         Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
 274         if (act) {
 275                 Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
 276                 tact->set_active (false);
 277         }
 278 }
 279
 280 void
 281 Editor::session_going_away ()
 282 {
 283         for (vector<sigc::connection>::iterator i = session_connections.begin(); i != session_connections.end(); ++i) {
 284                 (*i).disconnect ();
 285         }
 286
 287         stop_scrolling ();
 288         selection->clear ();
 289         cut_buffer->clear ();
 290
 291         clicked_regionview = 0;
 292         clicked_trackview = 0;
 293         clicked_audio_trackview = 0;
 294         clicked_crossfadeview = 0;
 295         entered_regionview = 0;
 296         entered_track = 0;
 297         latest_regionview = 0;
 298         last_update_frame = 0;
 299         drag_info.item = 0;
 300         last_canvas_frame = 0;
 301
 302         /* hide all tracks */
 303
 304         hide_all_tracks (false);
 305
 306         /* rip everything out of the list displays */
 307
 308         region_list_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
 309         route_list_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
 310         named_selection_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
 311         edit_group_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
 312
 313         region_list_model->clear ();
 314         route_display_model->clear ();
 315         named_selection_model->clear ();
 316         group_model->clear ();
 317
 318         region_list_display.set_model (region_list_model);
 319         route_list_display.set_model (route_display_model);
 320         named_selection_display.set_model (named_selection_model);
 321         edit_group_display.set_model (group_model);
 322
 323         edit_cursor_clock.set_session (0);
 324         zoom_range_clock.set_session (0);
 325         nudge_clock.set_session (0);
 326
 327         /* put editor/mixer toggle button in off position and disable until a new session is loaded */
 328
 329         editor_mixer_button.set_active(false);
 330         editor_mixer_button.set_sensitive(false);
 331         /* clear tempo/meter rulers */
 332
 333         remove_metric_marks ();
 334         hide_measures ();
 335         clear_marker_display ();
 336
 337         if (current_bbt_points) {
 338                 delete current_bbt_points;
 339                 current_bbt_points = 0;
 340         }
 341
 342         /* mixer strip will be deleted all by itself
 343            when its route is deleted.
 344         */
 345
 346         current_mixer_strip = 0;
 347
 348         set_title (_("ardour: editor"));
 349
 350         session = 0;
 351 }