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