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
  30 #include "i18n.h"
  31
  32 void
  33 Editor::editor_mixer_button_toggled ()
  34 {
  35         show_editor_mixer (editor_mixer_button.get_active());
  36 }
  37
  38 void
  39 Editor::cms_deleted ()
  40 {
  41         current_mixer_strip = 0;
  42 }
  43
  44 void
  45 Editor::show_editor_mixer (bool yn)
  46 {
  47         if (yn) {
  48
  49                 if (current_mixer_strip == 0) {
  50
  51                         if (selection->tracks.empty()) {
  52
  53                                 if (track_views.empty()) {
  54                                         return;
  55                                 }
  56
  57                                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
  58                                         AudioTimeAxisView* atv;
  59
  60                                         if ((atv = dynamic_cast<AudioTimeAxisView*> (*i)) != 0) {
  61
  62                                                 current_mixer_strip = new MixerStrip (*ARDOUR_UI::instance()->the_mixer(),
  63                                                                                       *session,
  64                                                                                       atv->route(), false);
  65
  66                                                 current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::cms_deleted));
  67                                                 break;
  68                                         }
  69                                 }
  70
  71                         } else {
  72                                 for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.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                                                 current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::cms_deleted));
  81                                                 break;
  82                                         }
  83                                 }
  84
  85                         }
  86
  87                         if (current_mixer_strip == 0) {
  88                                 return;
  89                         }
  90                 }
  91
  92                 if (current_mixer_strip->get_parent() == 0) {
  93
  94                         current_mixer_strip->set_embedded (true);
  95                         current_mixer_strip->Hiding.connect (mem_fun(*this, &Editor::current_mixer_strip_hidden));
  96                         current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::current_mixer_strip_removed));
  97                         current_mixer_strip->set_width (editor_mixer_strip_width);
  98                         current_mixer_strip->show_all ();
  99
 100                         global_hpacker.pack_start (*current_mixer_strip, false, false);
 101                         global_hpacker.reorder_child (*current_mixer_strip, 0);
 102                 }
 103
 104         } else {
 105
 106                 if (current_mixer_strip) {
 107                         editor_mixer_strip_width = current_mixer_strip->get_width ();
 108                         if (current_mixer_strip->get_parent() != 0) {
 109                                 global_hpacker.remove (*current_mixer_strip);
 110                         }
 111                 }
 112         }
 113 }
 114
 115 void
 116 Editor::set_selected_mixer_strip (TimeAxisView& view)
 117 {
 118         AudioTimeAxisView* at;
 119         bool show = false;
 120
 121         if (!session || (at = dynamic_cast<AudioTimeAxisView*>(&view)) == 0) {
 122                 return;
 123         }
 124
 125         if (current_mixer_strip) {
 126
 127                 /* might be nothing to do */
 128
 129                 if (&current_mixer_strip->route() == &at->route()) {
 130                         return;
 131                 }
 132
 133                 if (current_mixer_strip->get_parent()) {
 134                         show = true;
 135                 }
 136
 137                 delete current_mixer_strip;
 138                 current_mixer_strip = 0;
 139         }
 140
 141         current_mixer_strip = new MixerStrip (*ARDOUR_UI::instance()->the_mixer(),
 142                                               *session,
 143                                               at->route());
 144         current_mixer_strip->GoingAway.connect (mem_fun(*this, &Editor::cms_deleted));
 145
 146         if (show) {
 147                 show_editor_mixer (true);
 148         }
 149 }
 150
 151 void
 152 Editor::update_current_screen ()
 153 {
 154         if (session && engine.running()) {
 155
 156                 jack_nframes_t frame;
 157
 158                 frame = session->audible_frame();
 159
 160                 /* only update if the playhead is on screen or we are following it */
 161
 162                 if (_follow_playhead) {
 163
 164                   playhead_cursor->canvas_item.show();
 165                         if (frame != last_update_frame) {
 166
 167                                 if (frame < leftmost_frame || frame > leftmost_frame + current_page_frames()) {
 168
 169                                         if (session->transport_speed() < 0) {
 170                                                 if (frame > (current_page_frames()/2)) {
 171                                                         center_screen (frame-(current_page_frames()/2));
 172                                                 } else {
 173                                                         center_screen (current_page_frames()/2);
 174                                                 }
 175                                         } else {
 176                                                 center_screen (frame+(current_page_frames()/2));
 177                                         }
 178                                 }
 179
 180                                 playhead_cursor->set_position (frame);
 181                         }
 182
 183                 } else {
 184
 185                         if (frame != last_update_frame) {
 186                                 if (frame < leftmost_frame || frame > leftmost_frame + current_page_frames()) {
 187                                         playhead_cursor->canvas_item.hide();
 188                                 } else {
 189                                         playhead_cursor->set_position (frame);
 190                                 }
 191                         }
 192                 }
 193
 194                 last_update_frame = frame;
 195
 196                 if (current_mixer_strip) {
 197                         current_mixer_strip->fast_update ();
 198                 }
 199
 200         }
 201 }
 202
 203 void
 204 Editor::update_slower ()
 205 {
 206                 if (current_mixer_strip) {
 207                         current_mixer_strip->update ();
 208                 }
 209 }
 210
 211 void
 212 Editor::current_mixer_strip_removed ()
 213 {
 214         if (current_mixer_strip) {
 215                 /* it is being deleted */
 216                 current_mixer_strip = 0;
 217         }
 218 }
 219
 220 void
 221 Editor::current_mixer_strip_hidden ()
 222 {
 223         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
 224
 225                 AudioTimeAxisView* tmp;
 226
 227                 if ((tmp = dynamic_cast<AudioTimeAxisView*>(*i)) != 0) {
 228                         if (&(tmp->route()) == &(current_mixer_strip->route())) {
 229                                 (*i)->set_selected (false);
 230                                 break;
 231                         }
 232                 }
 233         }
 234         global_hpacker.remove (*current_mixer_strip);
 235 }
 236
 237 void
 238 Editor::session_going_away ()
 239 {
 240         for (vector<sigc::connection>::iterator i = session_connections.begin(); i != session_connections.end(); ++i) {
 241                 (*i).disconnect ();
 242         }
 243
 244         stop_scrolling ();
 245         selection->clear ();
 246         cut_buffer->clear ();
 247
 248         clicked_regionview = 0;
 249         clicked_trackview = 0;
 250         clicked_audio_trackview = 0;
 251         clicked_crossfadeview = 0;
 252         entered_regionview = 0;
 253         entered_track = 0;
 254         latest_regionview = 0;
 255         last_update_frame = 0;
 256         drag_info.item = 0;
 257         last_audition_region = 0;
 258
 259         /* hide all tracks */
 260
 261         hide_all_tracks (false);
 262
 263         /* rip everything out of the list displays */
 264
 265         region_list_clear (); // no clear() method in gtkmm 1.2
 266         route_display_model->clear ();
 267         named_selection_model->clear ();
 268         group_model->clear ();
 269
 270         edit_cursor_clock.set_session (0);
 271         selection_start_clock.set_session (0);
 272         selection_end_clock.set_session (0);
 273         zoom_range_clock.set_session (0);
 274         nudge_clock.set_session (0);
 275
 276         /* put editor/mixer toggle button in off position and disable until a new session is loaded */
 277
 278         editor_mixer_button.set_active(false);
 279         editor_mixer_button.set_sensitive(false);
 280         /* clear tempo/meter rulers */
 281
 282         remove_metric_marks ();
 283         hide_measures ();
 284         clear_marker_display ();
 285
 286         if (current_bbt_points) {
 287                 delete current_bbt_points;
 288                 current_bbt_points = 0;
 289         }
 290
 291         /* mixer strip will be deleted all by itself
 292            when its route is deleted.
 293         */
 294
 295         current_mixer_strip = 0;
 296
 297         set_title (_("ardour: editor"));
 298
 299         session = 0;
 300 }