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