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