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