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     $Id$
  19 */
  20
  21 #include <gtkmm2ext/utils.h>
  22 #include <ardour/audioengine.h>
  23
  24 #include "editor.h"
  25 #include "mixer_strip.h"
  26 #include "ardour_ui.h"
  27 #include "selection.h"
  28 #include "audio_time_axis.h"
  29 #include "actions.h"
  30
  31 #include "i18n.h"
  32
  33 void
  34 Editor::editor_mixer_button_toggled ()
  35 {
  36         Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
  37         if (act) {
  38                 Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
  39                 show_editor_mixer (tact->get_active());
  40         }
  41 }
  42
  43 void
  44 Editor::cms_deleted ()
  45 {
  46         current_mixer_strip = 0;
  47 }
  48
  49 void
  50 Editor::show_editor_mixer (bool yn)
  51 {
  52         show_editor_mixer_when_tracks_arrive = false;
  53
  54         if (yn) {
  55
  56                 if (current_mixer_strip == 0) {
  57
  58                         if (selection->tracks.empty()) {
  59
  60                                 if (track_views.empty()) {
  61                                         show_editor_mixer_when_tracks_arrive = true;
  62                                         return;
  63                                 }
  64
  65                                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
  66                                         AudioTimeAxisView* atv;
  67
  68                                         if ((atv = dynamic_cast<AudioTimeAxisView*> (*i)) != 0) {
  69
  70                                                 current_mixer_strip = new MixerStrip (*ARDOUR_UI::instance()->the_mixer(),
  71                                                                                       *session,
  72                                                                                       atv->route(), false);
  73
  74                                                 current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::cms_deleted));
  75                                                 break;
  76                                         }
  77                                 }
  78
  79                         } else {
  80
  81                                 sort_track_selection ();
  82
  83                                 for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
  84                                         AudioTimeAxisView* atv;
  85
  86                                         if ((atv = dynamic_cast<AudioTimeAxisView*> (*i)) != 0) {
  87
  88                                                 current_mixer_strip = new MixerStrip (*ARDOUR_UI::instance()->the_mixer(),
  89                                                                                       *session,
  90                                                                                       atv->route(), false);
  91                                                 current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::cms_deleted));
  92                                                 break;
  93                                         }
  94                                 }
  95
  96                         }
  97
  98                         if (current_mixer_strip == 0) {
  99                                 return;
 100                         }
 101                 }
 102
 103                 if (current_mixer_strip->get_parent() == 0) {
 104                         current_mixer_strip->set_embedded (true);
 105                         current_mixer_strip->Hiding.connect (mem_fun(*this, &Editor::current_mixer_strip_hidden));
 106                         current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::current_mixer_strip_removed));
 107                         current_mixer_strip->set_width (editor_mixer_strip_width);
 108
 109                         global_hpacker.pack_start (*current_mixer_strip, Gtk::PACK_SHRINK );
 110                         global_hpacker.reorder_child (*current_mixer_strip, 0);
 111
 112                         current_mixer_strip->show_all ();
 113                 }
 114
 115         } else {
 116
 117                 if (current_mixer_strip) {
 118                         editor_mixer_strip_width = current_mixer_strip->get_width ();
 119                         if (current_mixer_strip->get_parent() != 0) {
 120                                 global_hpacker.remove (*current_mixer_strip);
 121                         }
 122                 }
 123         }
 124 }
 125
 126 void
 127 Editor::set_selected_mixer_strip (TimeAxisView& view)
 128 {
 129         AudioTimeAxisView* at;
 130         bool show = false;
 131
 132         if (!session || (at = dynamic_cast<AudioTimeAxisView*>(&view)) == 0) {
 133                 return;
 134         }
 135
 136         if (current_mixer_strip) {
 137
 138                 /* might be nothing to do */
 139
 140                 if (current_mixer_strip->route() == at->route()) {
 141                         return;
 142                 }
 143
 144                 if (current_mixer_strip->get_parent()) {
 145                         show = true;
 146                 }
 147                 delete current_mixer_strip;
 148                 current_mixer_strip = 0;
 149         }
 150
 151         current_mixer_strip = new MixerStrip (*ARDOUR_UI::instance()->the_mixer(),
 152                                               *session,
 153                                               at->route());
 154         current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::cms_deleted));
 155
 156         if (show) {
 157                 show_editor_mixer (true);
 158         }
 159 }
 160
 161 void
 162 Editor::update_current_screen ()
 163 {
 164         if (session && engine.running()) {
 165
 166                 nframes_t frame;
 167
 168                 frame = session->audible_frame();
 169
 170                 if (_dragging_playhead) {
 171                         goto almost_done;
 172                 }
 173
 174                 /* only update if the playhead is on screen or we are following it */
 175
 176                 if (_follow_playhead) {
 177
 178                         playhead_cursor->canvas_item.show();
 179
 180                         if (frame != last_update_frame) {
 181                                 const jack_nframes_t page_width = current_page_frames();
 182
 183                                 // Percentage width of the visible range to use as a scroll interval
 184                                 // Idea: snap this to the nearest bar/beat/tick/etc, would make scrolling much
 185                                 // less jarring when zoomed in.. and it would be fun to watch :)
 186                                 static const double scroll_pct = 3.0/4.0;
 187
 188                                 const jack_nframes_t rightmost_frame = leftmost_frame + page_width;
 189                                 const jack_nframes_t scroll_interval = (jack_nframes_t)(page_width * scroll_pct);
 190                                 const jack_nframes_t padding = (jack_nframes_t)floor((page_width-scroll_interval) / 2.0);
 191
 192                                 if (frame < leftmost_frame + padding || frame > rightmost_frame - padding) {
 193
 194                                         if (session->transport_speed() < 0) {
 195                                                 if (frame > scroll_interval) {
 196                                                         center_screen (frame - scroll_interval/2);
 197                                                 } else {
 198                                                         center_screen (scroll_interval);
 199                                                 }
 200                                         } else {
 201                                                 center_screen(frame + scroll_interval/2);
 202                                         }
 203                                 }
 204
 205                                 playhead_cursor->set_position (frame);
 206                         }
 207
 208                 } else {
 209
 210                         if (frame != last_update_frame) {
 211                                 if (frame < leftmost_frame || frame > leftmost_frame + current_page_frames()) {
 212                                         playhead_cursor->canvas_item.hide();
 213                                 } else {
 214                                         playhead_cursor->set_position (frame);
 215                                 }
 216                         }
 217                 }
 218
 219           almost_done:
 220                 last_update_frame = frame;
 221
 222                 if (current_mixer_strip) {
 223                         current_mixer_strip->fast_update ();
 224                 }
 225
 226         }
 227 }
 228
 229 void
 230 Editor::current_mixer_strip_removed ()
 231 {
 232         if (current_mixer_strip) {
 233                 /* it is being deleted */
 234                 current_mixer_strip = 0;
 235         }
 236 }
 237
 238 void
 239 Editor::current_mixer_strip_hidden ()
 240 {
 241         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
 242
 243                 AudioTimeAxisView* tmp;
 244
 245                 if ((tmp = dynamic_cast<AudioTimeAxisView*>(*i)) != 0) {
 246                         if (tmp->route() == current_mixer_strip->route()) {
 247                                 (*i)->set_selected (false);
 248                                 break;
 249                         }
 250                 }
 251         }
 252
 253         Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
 254         if (act) {
 255                 Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
 256                 tact->set_active (false);
 257         }
 258 }
 259
 260 void
 261 Editor::session_going_away ()
 262 {
 263         for (vector<sigc::connection>::iterator i = session_connections.begin(); i != session_connections.end(); ++i) {
 264                 (*i).disconnect ();
 265         }
 266
 267         stop_scrolling ();
 268         selection->clear ();
 269         cut_buffer->clear ();
 270
 271         clicked_regionview = 0;
 272         clicked_axisview = 0;
 273         clicked_routeview = 0;
 274         clicked_crossfadeview = 0;
 275         entered_regionview = 0;
 276         entered_track = 0;
 277         latest_regionview = 0;
 278         last_update_frame = 0;
 279         drag_info.item = 0;
 280         last_canvas_frame = 0;
 281
 282         /* hide all tracks */
 283
 284         hide_all_tracks (false);
 285
 286         /* rip everything out of the list displays */
 287
 288         region_list_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
 289         route_list_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
 290         named_selection_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
 291         edit_group_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
 292
 293         region_list_model->clear ();
 294         route_display_model->clear ();
 295         named_selection_model->clear ();
 296         group_model->clear ();
 297
 298         region_list_display.set_model (region_list_model);
 299         route_list_display.set_model (route_display_model);
 300         named_selection_display.set_model (named_selection_model);
 301         edit_group_display.set_model (group_model);
 302
 303         edit_cursor_clock.set_session (0);
 304         zoom_range_clock.set_session (0);
 305         nudge_clock.set_session (0);
 306
 307         /* put editor/mixer toggle button in off position and disable until a new session is loaded */
 308
 309         editor_mixer_button.set_active(false);
 310         editor_mixer_button.set_sensitive(false);
 311         /* clear tempo/meter rulers */
 312
 313         remove_metric_marks ();
 314         hide_measures ();
 315         clear_marker_display ();
 316
 317         if (current_bbt_points) {
 318                 delete current_bbt_points;
 319                 current_bbt_points = 0;
 320         }
 321
 322         /* mixer strip will be deleted all by itself
 323            when its route is deleted.
 324         */
 325
 326         current_mixer_strip = 0;
 327
 328         set_title (_("ardour: editor"));
 329
 330         session = 0;
 331 }