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         if (yn) {
  53
  54                 if (current_mixer_strip == 0) {
  55
  56                         if (selection->tracks.empty()) {
  57
  58                                 if (track_views.empty()) {
  59                                         return;
  60                                 }
  61
  62                                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
  63                                         AudioTimeAxisView* atv;
  64
  65                                         if ((atv = dynamic_cast<AudioTimeAxisView*> (*i)) != 0) {
  66
  67                                                 current_mixer_strip = new MixerStrip (*ARDOUR_UI::instance()->the_mixer(),
  68                                                                                       *session,
  69                                                                                       atv->route(), false);
  70
  71                                                 current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::cms_deleted));
  72                                                 break;
  73                                         }
  74                                 }
  75
  76                         } else {
  77                                 for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
  78                                         AudioTimeAxisView* atv;
  79
  80                                         if ((atv = dynamic_cast<AudioTimeAxisView*> (*i)) != 0) {
  81
  82                                                 current_mixer_strip = new MixerStrip (*ARDOUR_UI::instance()->the_mixer(),
  83                                                                                       *session,
  84                                                                                       atv->route(), false);
  85                                                 current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::cms_deleted));
  86                                                 break;
  87                                         }
  88                                 }
  89
  90                         }
  91
  92                         if (current_mixer_strip == 0) {
  93                                 return;
  94                         }
  95                 }
  96
  97                 if (current_mixer_strip->get_parent() == 0) {
  98                         current_mixer_strip->set_embedded (true);
  99                         current_mixer_strip->Hiding.connect (mem_fun(*this, &Editor::current_mixer_strip_hidden));
 100                         current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::current_mixer_strip_removed));
 101                         current_mixer_strip->set_width (editor_mixer_strip_width);
 102
 103                         global_hpacker.pack_start (*current_mixer_strip, Gtk::PACK_SHRINK );
 104                         global_hpacker.reorder_child (*current_mixer_strip, 0);
 105
 106                         current_mixer_strip->show_all ();
 107                 }
 108
 109         } else {
 110
 111                 if (current_mixer_strip) {
 112                         editor_mixer_strip_width = current_mixer_strip->get_width ();
 113                         if (current_mixer_strip->get_parent() != 0) {
 114                                 global_hpacker.remove (*current_mixer_strip);
 115                         }
 116                 }
 117         }
 118 }
 119
 120 void
 121 Editor::set_selected_mixer_strip (TimeAxisView& view)
 122 {
 123         AudioTimeAxisView* at;
 124         bool show = false;
 125
 126         if (!session || (at = dynamic_cast<AudioTimeAxisView*>(&view)) == 0) {
 127                 return;
 128         }
 129
 130         if (current_mixer_strip) {
 131
 132                 /* might be nothing to do */
 133
 134                 if (current_mixer_strip->route() == at->route()) {
 135                         return;
 136                 }
 137
 138                 if (current_mixer_strip->get_parent()) {
 139                         show = true;
 140                 }
 141                 delete current_mixer_strip;
 142                 current_mixer_strip = 0;
 143         }
 144
 145         current_mixer_strip = new MixerStrip (*ARDOUR_UI::instance()->the_mixer(),
 146                                               *session,
 147                                               at->route());
 148         current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::cms_deleted));
 149
 150         if (show) {
 151                 show_editor_mixer (true);
 152         }
 153 }
 154
 155 void
 156 Editor::update_current_screen ()
 157 {
 158         if (session && engine.running()) {
 159
 160                 jack_nframes_t frame;
 161
 162                 frame = session->audible_frame();
 163
 164                 /* only update if the playhead is on screen or we are following it */
 165
 166                 if (_follow_playhead) {
 167
 168                   playhead_cursor->canvas_item.show();
 169                         if (frame != last_update_frame) {
 170
 171                                 if (frame < leftmost_frame || frame > leftmost_frame + current_page_frames()) {
 172
 173                                         if (session->transport_speed() < 0) {
 174                                                 if (frame > (current_page_frames()/2)) {
 175                                                         center_screen (frame-(current_page_frames()/2));
 176                                                 } else {
 177                                                         center_screen (current_page_frames()/2);
 178                                                 }
 179                                         } else {
 180                                                 center_screen (frame+(current_page_frames()/2));
 181                                         }
 182                                 }
 183
 184                                 playhead_cursor->set_position (frame);
 185                         }
 186
 187                 } else {
 188
 189                         if (frame != last_update_frame) {
 190                                 if (frame < leftmost_frame || frame > leftmost_frame + current_page_frames()) {
 191                                         playhead_cursor->canvas_item.hide();
 192                                 } else {
 193                                         playhead_cursor->set_position (frame);
 194                                 }
 195                         }
 196                 }
 197
 198                 last_update_frame = frame;
 199
 200                 if (current_mixer_strip) {
 201                         current_mixer_strip->fast_update ();
 202                 }
 203
 204         }
 205 }
 206
 207 void
 208 Editor::current_mixer_strip_removed ()
 209 {
 210         if (current_mixer_strip) {
 211                 /* it is being deleted */
 212                 current_mixer_strip = 0;
 213         }
 214 }
 215
 216 void
 217 Editor::current_mixer_strip_hidden ()
 218 {
 219         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
 220
 221                 AudioTimeAxisView* tmp;
 222
 223                 if ((tmp = dynamic_cast<AudioTimeAxisView*>(*i)) != 0) {
 224                         if (tmp->route() == current_mixer_strip->route()) {
 225                                 (*i)->set_selected (false);
 226                                 break;
 227                         }
 228                 }
 229         }
 230
 231         Glib::RefPtr<Gtk::Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
 232         if (act) {
 233                 Glib::RefPtr<Gtk::ToggleAction> tact = Glib::RefPtr<Gtk::ToggleAction>::cast_dynamic(act);
 234                 tact->set_active (false);
 235         }
 236 }
 237
 238 void
 239 Editor::session_going_away ()
 240 {
 241         for (vector<sigc::connection>::iterator i = session_connections.begin(); i != session_connections.end(); ++i) {
 242                 (*i).disconnect ();
 243         }
 244
 245         stop_scrolling ();
 246         selection->clear ();
 247         cut_buffer->clear ();
 248
 249         clicked_regionview = 0;
 250         clicked_trackview = 0;
 251         clicked_audio_trackview = 0;
 252         clicked_crossfadeview = 0;
 253         entered_regionview = 0;
 254         entered_track = 0;
 255         latest_regionview = 0;
 256         last_update_frame = 0;
 257         drag_info.item = 0;
 258         last_canvas_frame = 0;
 259
 260         /* hide all tracks */
 261
 262         hide_all_tracks (false);
 263
 264         /* rip everything out of the list displays */
 265
 266         region_list_clear (); // no clear() method in gtkmm 1.2
 267         route_display_model->clear ();
 268         named_selection_model->clear ();
 269         group_model->clear ();
 270
 271         edit_cursor_clock.set_session (0);
 272         zoom_range_clock.set_session (0);
 273         nudge_clock.set_session (0);
 274
 275         /* put editor/mixer toggle button in off position and disable until a new session is loaded */
 276
 277         editor_mixer_button.set_active(false);
 278         editor_mixer_button.set_sensitive(false);
 279         /* clear tempo/meter rulers */
 280
 281         remove_metric_marks ();
 282         hide_measures ();
 283         clear_marker_display ();
 284
 285         if (current_bbt_points) {
 286                 delete current_bbt_points;
 287                 current_bbt_points = 0;
 288         }
 289
 290         /* mixer strip will be deleted all by itself
 291            when its route is deleted.
 292         */
 293
 294         current_mixer_strip = 0;
 295
 296         set_title (_("ardour: editor"));
 297
 298         session = 0;
 299 }