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                                 if (frame < leftmost_frame || frame > leftmost_frame + current_page_frames()) {
 186
 187                                         if (session->transport_speed() < 0) {
 188                                                 if (frame > (current_page_frames()/2)) {
 189                                                         center_screen (frame-(current_page_frames()/2));
 190                                                 } else {
 191                                                         center_screen (current_page_frames()/2);
 192                                                 }
 193                                         } else {
 194                                                 center_screen (frame+(current_page_frames()/2));
 195                                         }
 196                                 }
 197
 198                                 playhead_cursor->set_position (frame);
 199
 200 #undef CONTINUOUS_SCROLL
 201 #ifdef  CONTINUOUS_SCROLL
 202
 203                                 /* don't do continuous scroll till the new position is in the rightmost quarter of the
 204                                    editor canvas
 205                                 */
 206
 207 #if 0
 208                                 if (frame > leftmost_frame + (3 * current_page_frames() / 4)) {
 209
 210                                         if (frame > playhead_cursor->current_frame) {
 211                                                 nframes_t delta = frame - playhead_cursor->current_frame;
 212                                                 horizontal_adjustment.set_value (horizontal_adjustment.get_value() + (delta/frames_per_unit));
 213                                         } else {
 214                                                 nframes_t delta = playhead_cursor->current_frame - frame;
 215                                                 horizontal_adjustment.set_value (horizontal_adjustment.get_value() - (delta/frames_per_unit));
 216                                         }
 217                                 }
 218 #else
 219                                 if (!currentInitialized) {
 220                                         current = (frame - current_page_frames()/2) / frames_per_unit;
 221                                         currentInitialized = 1;
 222                                 }
 223
 224                                 double target = (frame - current_page_frames()/2) / frames_per_unit;
 225                                 target = (target * 0.1) + (current * 0.9);
 226                                 horizontal_adjustment.set_value ( target );
 227                                 current = target;
 228 #endif
 229
 230 #endif // CONTINUOUS_SCROLL
 231
 232                         }
 233
 234                 } else {
 235
 236                         if (frame != last_update_frame) {
 237                                 if (frame < leftmost_frame || frame > leftmost_frame + current_page_frames()) {
 238                                         playhead_cursor->canvas_item.hide();
 239                                 } else {
 240                                         playhead_cursor->set_position (frame);
 241                                 }
 242                         }
 243                 }
 244
 245           almost_done:
 246                 last_update_frame = frame;
 247
 248                 if (current_mixer_strip) {
 249                         current_mixer_strip->fast_update ();
 250                 }
 251
 252         }
 253 }
 254
 255 void
 256 Editor::current_mixer_strip_removed ()
 257 {
 258         if (current_mixer_strip) {
 259                 /* it is being deleted */
 260                 current_mixer_strip = 0;
 261         }
 262 }
 263
 264 void
 265 Editor::current_mixer_strip_hidden ()
 266 {
 267         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
 268
 269                 AudioTimeAxisView* tmp;
 270
 271                 if ((tmp = dynamic_cast<AudioTimeAxisView*>(*i)) != 0) {
 272                         if (tmp->route() == current_mixer_strip->route()) {
 273                                 (*i)->set_selected (false);
 274                                 break;
 275                         }
 276                 }
 277         }
 278
 279         Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
 280         if (act) {
 281                 Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
 282                 tact->set_active (false);
 283         }
 284 }
 285
 286 void
 287 Editor::session_going_away ()
 288 {
 289         for (vector<sigc::connection>::iterator i = session_connections.begin(); i != session_connections.end(); ++i) {
 290                 (*i).disconnect ();
 291         }
 292
 293         stop_scrolling ();
 294         selection->clear ();
 295         cut_buffer->clear ();
 296
 297         clicked_regionview = 0;
 298         clicked_trackview = 0;
 299         clicked_audio_trackview = 0;
 300         clicked_crossfadeview = 0;
 301         entered_regionview = 0;
 302         entered_track = 0;
 303         latest_regionview = 0;
 304         last_update_frame = 0;
 305         drag_info.item = 0;
 306         last_canvas_frame = 0;
 307
 308         /* hide all tracks */
 309
 310         hide_all_tracks (false);
 311
 312         /* rip everything out of the list displays */
 313
 314         region_list_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
 315         route_list_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
 316         named_selection_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
 317         edit_group_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
 318
 319         region_list_model->clear ();
 320         route_display_model->clear ();
 321         named_selection_model->clear ();
 322         group_model->clear ();
 323
 324         region_list_display.set_model (region_list_model);
 325         route_list_display.set_model (route_display_model);
 326         named_selection_display.set_model (named_selection_model);
 327         edit_group_display.set_model (group_model);
 328
 329         edit_cursor_clock.set_session (0);
 330         zoom_range_clock.set_session (0);
 331         nudge_clock.set_session (0);
 332
 333         /* put editor/mixer toggle button in off position and disable until a new session is loaded */
 334
 335         editor_mixer_button.set_active(false);
 336         editor_mixer_button.set_sensitive(false);
 337         /* clear tempo/meter rulers */
 338
 339         remove_metric_marks ();
 340         hide_measures ();
 341         clear_marker_display ();
 342
 343         if (current_bbt_points) {
 344                 delete current_bbt_points;
 345                 current_bbt_points = 0;
 346         }
 347
 348         /* mixer strip will be deleted all by itself
 349            when its route is deleted.
 350         */
 351
 352         current_mixer_strip = 0;
 353
 354         set_title (_("ardour: editor"));
 355
 356         session = 0;
 357 }