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 #include <ardour/audioengine.h>
  24
  25 #include "editor.h"
  26 #include "mixer_strip.h"
  27 #include "ardour_ui.h"
  28 #include "selection.h"
  29 #include "audio_time_axis.h"
  30 #include "actions.h"
  31
  32 #include "i18n.h"
  33
  34 using namespace Gtkmm2ext;
  35
  36 void
  37 Editor::editor_mixer_button_toggled ()
  38 {
  39         Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
  40         if (act) {
  41                 Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
  42                 show_editor_mixer (tact->get_active());
  43         }
  44 }
  45
  46 void
  47 Editor::cms_deleted ()
  48 {
  49         current_mixer_strip = 0;
  50 }
  51
  52 void
  53 Editor::show_editor_mixer (bool yn)
  54 {
  55         show_editor_mixer_when_tracks_arrive = false;
  56
  57         if (yn) {
  58
  59                 if (current_mixer_strip == 0) {
  60
  61                         if (selection->tracks.empty()) {
  62
  63                                 if (track_views.empty()) {
  64                                         show_editor_mixer_when_tracks_arrive = true;
  65                                         return;
  66                                 }
  67
  68                                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
  69                                         AudioTimeAxisView* atv;
  70
  71                                         if ((atv = dynamic_cast<AudioTimeAxisView*> (*i)) != 0) {
  72
  73                                                 current_mixer_strip = new MixerStrip (*ARDOUR_UI::instance()->the_mixer(),
  74                                                                                       *session,
  75                                                                                       atv->route(), false);
  76
  77                                                 current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::cms_deleted));
  78                                                 break;
  79                                         }
  80                                 }
  81
  82                         } else {
  83
  84                                 sort_track_selection ();
  85
  86                                 for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
  87                                         AudioTimeAxisView* atv;
  88
  89                                         if ((atv = dynamic_cast<AudioTimeAxisView*> (*i)) != 0) {
  90
  91                                                 current_mixer_strip = new MixerStrip (*ARDOUR_UI::instance()->the_mixer(),
  92                                                                                       *session,
  93                                                                                       atv->route(), false);
  94                                                 current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::cms_deleted));
  95                                                 break;
  96                                         }
  97                                 }
  98
  99                         }
 100
 101                         if (current_mixer_strip == 0) {
 102                                 return;
 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);
 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
 129 void
 130 Editor::set_selected_mixer_strip (TimeAxisView& view)
 131 {
 132         AudioTimeAxisView* at;
 133         bool show = false;
 134
 135         if (!session || (at = dynamic_cast<AudioTimeAxisView*>(&view)) == 0) {
 136                 return;
 137         }
 138
 139         if (current_mixer_strip) {
 140
 141                 /* might be nothing to do */
 142
 143                 if (current_mixer_strip->route() == at->route()) {
 144                         return;
 145                 }
 146
 147                 if (current_mixer_strip->get_parent()) {
 148                         show = true;
 149                 }
 150                 delete current_mixer_strip;
 151                 current_mixer_strip = 0;
 152         }
 153
 154         current_mixer_strip = new MixerStrip (*ARDOUR_UI::instance()->the_mixer(),
 155                                               *session,
 156                                               at->route());
 157         current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::cms_deleted));
 158
 159         if (show) {
 160                 show_editor_mixer (true);
 161         }
 162 }
 163
 164 double current = 0.0;
 165 bool currentInitialized = 0;
 166
 167 void
 168 Editor::update_current_screen ()
 169 {
 170         if (session && session->engine().running()) {
 171
 172                 nframes_t frame;
 173
 174                 frame = session->audible_frame();
 175
 176                 if (_dragging_playhead) {
 177                         goto almost_done;
 178                 }
 179
 180                 /* only update if the playhead is on screen or we are following it */
 181
 182                 if (_follow_playhead) {
 183
 184                         playhead_cursor->canvas_item.show();
 185
 186                         if (frame != last_update_frame) {
 187
 188
 189 #undef CONTINUOUS_SCROLL
 190 #ifndef  CONTINUOUS_SCROLL
 191                                 if (frame < leftmost_frame || frame > leftmost_frame + current_page_frames()) {
 192
 193                                         if (session->transport_speed() < 0) {
 194                                                 if (frame > (current_page_frames()/2)) {
 195                                                         center_screen (frame-(current_page_frames()/2));
 196                                                 } else {
 197                                                         center_screen (current_page_frames()/2);
 198                                                 }
 199                                         } else {
 200                                                 center_screen (frame+(current_page_frames()/2));
 201                                         }
 202                                 }
 203
 204                                 playhead_cursor->set_position (frame);
 205
 206 #else  // CONTINUOUS_SCROLL
 207
 208                                 /* don't do continuous scroll till the new position is in the rightmost quarter of the
 209                                    editor canvas
 210                                 */
 211
 212                                 if (session->transport_speed()) {
 213                                         double target = ((double)frame - (double)current_page_frames()/2.0) / frames_per_unit;
 214                                         if (target <= 0.0) target = 0.0;
 215                                         if ( fabs(target - current) < current_page_frames()/frames_per_unit ) {
 216                                                 target = (target * 0.15) + (current * 0.85);
 217                                         } else {
 218                                                 /* relax */
 219                                         }
 220                                         //printf("frame: %d,  cpf: %d,  fpu: %6.6f, current: %6.6f, target : %6.6f\n", frame, current_page_frames(), frames_per_unit, current, target );
 221                                         current = target;
 222                                         horizontal_adjustment.set_value ( current );
 223                                 }
 224
 225                                 playhead_cursor->set_position (frame);
 226
 227 #endif // CONTINUOUS_SCROLL
 228
 229                         }
 230
 231                 } else {
 232
 233                         if (frame != last_update_frame) {
 234                                 if (frame < leftmost_frame || frame > leftmost_frame + current_page_frames()) {
 235                                         playhead_cursor->canvas_item.hide();
 236                                 } else {
 237                                         playhead_cursor->set_position (frame);
 238                                 }
 239                         }
 240                 }
 241
 242           almost_done:
 243                 last_update_frame = frame;
 244
 245                 if (current_mixer_strip) {
 246                         current_mixer_strip->fast_update ();
 247                 }
 248
 249         }
 250 }
 251
 252 void
 253 Editor::current_mixer_strip_removed ()
 254 {
 255         if (current_mixer_strip) {
 256                 /* it is being deleted */
 257                 current_mixer_strip = 0;
 258         }
 259 }
 260
 261 void
 262 Editor::current_mixer_strip_hidden ()
 263 {
 264         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
 265
 266                 AudioTimeAxisView* tmp;
 267
 268                 if ((tmp = dynamic_cast<AudioTimeAxisView*>(*i)) != 0) {
 269                         if (tmp->route() == current_mixer_strip->route()) {
 270                                 (*i)->set_selected (false);
 271                                 break;
 272                         }
 273                 }
 274         }
 275
 276         Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
 277         if (act) {
 278                 Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
 279                 tact->set_active (false);
 280         }
 281 }
 282
 283 void
 284 Editor::session_going_away ()
 285 {
 286         for (vector<sigc::connection>::iterator i = session_connections.begin(); i != session_connections.end(); ++i) {
 287                 (*i).disconnect ();
 288         }
 289
 290         stop_scrolling ();
 291         selection->clear ();
 292         cut_buffer->clear ();
 293
 294         clicked_regionview = 0;
 295         clicked_axisview = 0;
 296         clicked_routeview = 0;
 297         clicked_crossfadeview = 0;
 298         entered_regionview = 0;
 299         entered_track = 0;
 300         latest_regionview = 0;
 301         last_update_frame = 0;
 302         drag_info.item = 0;
 303         last_canvas_frame = 0;
 304
 305         /* hide all tracks */
 306
 307         hide_all_tracks (false);
 308
 309         /* rip everything out of the list displays */
 310
 311         region_list_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
 312         route_list_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
 313         named_selection_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
 314         edit_group_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
 315
 316         region_list_model->clear ();
 317         route_display_model->clear ();
 318         named_selection_model->clear ();
 319         group_model->clear ();
 320
 321         region_list_display.set_model (region_list_model);
 322         route_list_display.set_model (route_display_model);
 323         named_selection_display.set_model (named_selection_model);
 324         edit_group_display.set_model (group_model);
 325
 326         edit_cursor_clock.set_session (0);
 327         zoom_range_clock.set_session (0);
 328         nudge_clock.set_session (0);
 329
 330         /* put editor/mixer toggle button in off position and disable until a new session is loaded */
 331
 332         editor_mixer_button.set_active(false);
 333         editor_mixer_button.set_sensitive(false);
 334         /* clear tempo/meter rulers */
 335
 336         remove_metric_marks ();
 337         hide_measures ();
 338         clear_marker_display ();
 339
 340         if (current_bbt_points) {
 341                 delete current_bbt_points;
 342                 current_bbt_points = 0;
 343         }
 344
 345         /* mixer strip will be deleted all by itself
 346            when its route is deleted.
 347         */
 348
 349         current_mixer_strip = 0;
 350
 351         WindowTitle title(Glib::get_application_name());
 352         title += _("Editor");
 353
 354         set_title (title.get_string());
 355
 356         session = 0;
 357 }