gtk2_ardour/ardour_ui_ed.cc

   1 /*
   2     Copyright (C) 20002-2004 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 #ifdef WAF_BUILD
  21 #include "gtk2ardour-config.h"
  22 #endif
  23
  24 /* This file contains any ARDOUR_UI methods that require knowledge of
  25    the editor, and exists so that no compilation dependency exists
  26    between the main ARDOUR_UI modules and the PublicEditor class. This
  27    is to cut down on the nasty compile times for both these classes.
  28 */
  29
  30 #include <cmath>
  31
  32 #include <glibmm/miscutils.h>
  33 #include <gtk/gtk.h>
  34
  35 #include "gtkmm2ext/utils.h"
  36 #include "gtkmm2ext/window_title.h"
  37 #include "gtkmm2ext/tearoff.h"
  38 #include "gtkmm2ext/cairo_packer.h"
  39
  40 #include "pbd/file_utils.h"
  41 #include "pbd/fpu.h"
  42 #include "pbd/convert.h"
  43
  44 #include "ardour_ui.h"
  45 #include "public_editor.h"
  46 #include "audio_clock.h"
  47 #include "keyboard.h"
  48 #include "monitor_section.h"
  49 #include "engine_dialog.h"
  50 #include "editor.h"
  51 #include "actions.h"
  52 #include "meterbridge.h"
  53 #include "mixer_ui.h"
  54 #include "startup.h"
  55 #include "window_manager.h"
  56 #include "global_port_matrix.h"
  57 #include "location_ui.h"
  58 #include "main_clock.h"
  59
  60 #include <gtkmm2ext/application.h>
  61
  62 #include "ardour/session.h"
  63 #include "ardour/profile.h"
  64 #include "ardour/audioengine.h"
  65
  66 #include "control_protocol/control_protocol.h"
  67
  68 #include "i18n.h"
  69
  70 using namespace std;
  71 using namespace ARDOUR;
  72 using namespace PBD;
  73 using namespace Gtkmm2ext;
  74 using namespace Gtk;
  75 using namespace Glib;
  76
  77 int
  78 ARDOUR_UI::create_editor ()
  79 {
  80         try {
  81                 editor = new Editor ();
  82         }
  83
  84         catch (failed_constructor& err) {
  85                 return -1;
  86         }
  87
  88         editor->Realized.connect (sigc::mem_fun (*this, &ARDOUR_UI::editor_realized));
  89         editor->signal_window_state_event().connect (sigc::bind (sigc::mem_fun (*this, &ARDOUR_UI::main_window_state_event_handler), true));
  90         editor->signal_event().connect (sigc::bind (sigc::ptr_fun (&Keyboard::catch_user_event_for_pre_dialog_focus), editor));
  91
  92         return 0;
  93 }
  94
  95 void
  96 ARDOUR_UI::install_actions ()
  97 {
  98         Glib::RefPtr<ActionGroup> main_actions = ActionGroup::create (X_("Main"));
  99         Glib::RefPtr<ActionGroup> main_menu_actions = ActionGroup::create (X_("Main_menu"));
 100         Glib::RefPtr<Action> act;
 101
 102         /* menus + submenus that need action items */
 103
 104         ActionManager::register_action (main_menu_actions, X_("Session"), _("Session"));
 105         act = ActionManager::register_action (main_menu_actions, X_("Cleanup"), _("Clean-up"));
 106         ActionManager::write_sensitive_actions.push_back (act);
 107         ActionManager::register_action (main_menu_actions, X_("Sync"), _("Sync"));
 108         ActionManager::register_action (main_menu_actions, X_("TransportOptions"), _("Options"));
 109         ActionManager::register_action (main_menu_actions, X_("WindowMenu"), _("Window"));
 110         ActionManager::register_action (main_menu_actions, X_("Help"), _("Help"));
 111         ActionManager::register_action (main_menu_actions, X_("KeyMouseActions"), _("Misc. Shortcuts"));
 112         ActionManager::register_action (main_menu_actions, X_("AudioFileFormat"), _("Audio File Format"));
 113         ActionManager::register_action (main_menu_actions, X_("AudioFileFormatHeader"), _("File Type"));
 114         ActionManager::register_action (main_menu_actions, X_("AudioFileFormatData"), _("Sample Format"));
 115         ActionManager::register_action (main_menu_actions, X_("ControlSurfaces"), _("Control Surfaces"));
 116         ActionManager::register_action (main_menu_actions, X_("Plugins"), _("Plugins"));
 117         ActionManager::register_action (main_menu_actions, X_("Metering"), _("Metering"));
 118         ActionManager::register_action (main_menu_actions, X_("MeteringFallOffRate"), _("Fall Off Rate"));
 119         ActionManager::register_action (main_menu_actions, X_("MeteringHoldTime"), _("Hold Time"));
 120         ActionManager::register_action (main_menu_actions, X_("Denormals"), _("Denormal Handling"));
 121
 122         /* the real actions */
 123
 124         act = ActionManager::register_action (main_actions, X_("New"), _("New..."),  hide_return (sigc::bind (sigc::mem_fun(*this, &ARDOUR_UI::get_session_parameters), false, true, "")));
 125
 126         ActionManager::register_action (main_actions, X_("Open"), _("Open..."),  sigc::mem_fun(*this, &ARDOUR_UI::open_session));
 127         ActionManager::register_action (main_actions, X_("Recent"), _("Recent..."),  sigc::mem_fun(*this, &ARDOUR_UI::open_recent_session));
 128         act = ActionManager::register_action (main_actions, X_("Close"), _("Close"),  sigc::mem_fun(*this, &ARDOUR_UI::close_session));
 129         ActionManager::session_sensitive_actions.push_back (act);
 130
 131         act = ActionManager::register_action (main_actions, X_("AddTrackBus"), _("Add Track or Bus..."),
 132                                               sigc::bind (sigc::mem_fun(*this, &ARDOUR_UI::add_route), (Gtk::Window*) 0));
 133         ActionManager::session_sensitive_actions.push_back (act);
 134         ActionManager::write_sensitive_actions.push_back (act);
 135
 136         act = ActionManager::register_action (main_actions, X_("duplicate-routes"), _("Duplicate Tracks/Busses..."),
 137                                               sigc::mem_fun(*this, &ARDOUR_UI::start_duplicate_routes));
 138         ActionManager::session_sensitive_actions.push_back (act);
 139         ActionManager::write_sensitive_actions.push_back (act);
 140         ActionManager::track_selection_sensitive_actions.push_back (act);
 141
 142         act = ActionManager::register_action (main_actions, X_("cancel-solo"), _("Cancel Solo"), sigc::mem_fun(*this, &ARDOUR_UI::cancel_solo));
 143         ActionManager::session_sensitive_actions.push_back (act);
 144         ActionManager::write_sensitive_actions.push_back (act);
 145
 146
 147         act = ActionManager::register_action (main_actions, X_("OpenVideo"), _("Open Video"),
 148                                               sigc::bind (sigc::mem_fun(*this, &ARDOUR_UI::add_video), (Gtk::Window*) 0));
 149         ActionManager::session_sensitive_actions.push_back (act);
 150         act = ActionManager::register_action (main_actions, X_("CloseVideo"), _("Remove Video"),
 151                                               sigc::mem_fun (*this, &ARDOUR_UI::remove_video));
 152         act->set_sensitive (false);
 153         act = ActionManager::register_action (main_actions, X_("ExportVideo"), _("Export to Video File"),
 154                         hide_return (sigc::bind (sigc::mem_fun(*this, &ARDOUR_UI::export_video), false)));
 155         ActionManager::session_sensitive_actions.push_back (act);
 156
 157         act = ActionManager::register_action (main_actions, X_("SnapshotStay"), _("Snapshot (& keep working on current version) ..."), sigc::bind (sigc::mem_fun(*this, &ARDOUR_UI::snapshot_session), false));
 158         ActionManager::session_sensitive_actions.push_back (act);
 159         ActionManager::write_sensitive_actions.push_back (act);
 160
 161         act = ActionManager::register_action (main_actions, X_("SnapshotSwitch"), _("Snapshot (& switch to new version) ..."), sigc::bind (sigc::mem_fun(*this, &ARDOUR_UI::snapshot_session), true));
 162         ActionManager::session_sensitive_actions.push_back (act);
 163         ActionManager::write_sensitive_actions.push_back (act);
 164
 165         act = ActionManager::register_action (main_actions, X_("QuickSnapshotStay"), _("Quick Snapshot (& keep working on current version) ..."), sigc::bind (sigc::mem_fun(*this, &ARDOUR_UI::quick_snapshot_session), false));
 166         ActionManager::session_sensitive_actions.push_back (act);
 167         ActionManager::write_sensitive_actions.push_back (act);
 168
 169         act = ActionManager::register_action (main_actions, X_("QuickSnapshotSwitch"), _("Quick Snapshot (& switch to new version) ..."), sigc::bind (sigc::mem_fun(*this, &ARDOUR_UI::quick_snapshot_session), true));
 170         ActionManager::session_sensitive_actions.push_back (act);
 171         ActionManager::write_sensitive_actions.push_back (act);
 172
 173         act = ActionManager::register_action (main_actions, X_("SaveAs"), _("Save As..."), sigc::mem_fun(*this, &ARDOUR_UI::save_session_as));
 174         ActionManager::session_sensitive_actions.push_back (act);
 175         ActionManager::write_sensitive_actions.push_back (act);
 176
 177         act = ActionManager::register_action (main_actions, X_("Rename"), _("Rename..."), sigc::mem_fun(*this, &ARDOUR_UI::rename_session));
 178         ActionManager::session_sensitive_actions.push_back (act);
 179         ActionManager::write_sensitive_actions.push_back (act);
 180
 181         act = ActionManager::register_action (main_actions, X_("SaveTemplate"), _("Save Template..."),  sigc::mem_fun(*this, &ARDOUR_UI::save_template));
 182         ActionManager::session_sensitive_actions.push_back (act);
 183
 184         act = ActionManager::register_action (main_actions, X_("Metadata"), _("Metadata"));
 185         ActionManager::session_sensitive_actions.push_back (act);
 186
 187         act = ActionManager::register_action (main_actions, X_("EditMetadata"), _("Edit Metadata..."),  sigc::mem_fun(*this, &ARDOUR_UI::edit_metadata));
 188         ActionManager::session_sensitive_actions.push_back (act);
 189
 190         act = ActionManager::register_action (main_actions, X_("ImportMetadata"), _("Import Metadata..."),  sigc::mem_fun(*this, &ARDOUR_UI::import_metadata));
 191         ActionManager::session_sensitive_actions.push_back (act);
 192
 193         act = ActionManager::register_action (main_actions, X_("ExportAudio"), _("Export to Audio File(s)..."),  sigc::mem_fun (*editor, &PublicEditor::export_audio));
 194         ActionManager::session_sensitive_actions.push_back (act);
 195
 196         act = ActionManager::register_action (main_actions, X_("StemExport"), _("Stem export..."),  sigc::mem_fun (*editor, &PublicEditor::stem_export));
 197         ActionManager::session_sensitive_actions.push_back (act);
 198
 199         act = ActionManager::register_action (main_actions, X_("Export"), _("Export"));
 200         ActionManager::session_sensitive_actions.push_back (act);
 201
 202         act = ActionManager::register_action (main_actions, X_("CleanupUnused"), _("Clean-up Unused Sources..."),  sigc::mem_fun (*(ARDOUR_UI::instance()), &ARDOUR_UI::cleanup));
 203         ActionManager::session_sensitive_actions.push_back (act);
 204         ActionManager::write_sensitive_actions.push_back (act);
 205
 206         act = ActionManager::register_action (main_actions, X_("CleanupPeakFiles"), _("Reset Peak Files"),  sigc::mem_fun (*(ARDOUR_UI::instance()), &ARDOUR_UI::cleanup_peakfiles));
 207         ActionManager::session_sensitive_actions.push_back (act);
 208         ActionManager::write_sensitive_actions.push_back (act);
 209
 210         act = ActionManager::register_action (main_actions, X_("FlushWastebasket"), _("Flush Wastebasket"),  sigc::mem_fun (*(ARDOUR_UI::instance()), &ARDOUR_UI::flush_trash));
 211         ActionManager::write_sensitive_actions.push_back (act);
 212         ActionManager::session_sensitive_actions.push_back (act);
 213
 214         /* these actions are intended to be shared across all windows */
 215
 216         common_actions = ActionGroup::create (X_("Common"));
 217         ActionManager::register_action (common_actions, X_("Quit"), _("Quit"), (hide_return (sigc::mem_fun(*this, &ARDOUR_UI::finish))));
 218         ActionManager::register_action (common_actions, X_("Hide"), _("Hide"), sigc::mem_fun (*this, &ARDOUR_UI::hide_application));
 219
 220         /* windows visibility actions */
 221
 222         ActionManager::register_toggle_action (common_actions, X_("ToggleMaximalEditor"), _("Maximise Editor Space"), sigc::mem_fun (*this, &ARDOUR_UI::toggle_editing_space));
 223         ActionManager::register_toggle_action (common_actions, X_("ToggleMaximalMixer"), _("Maximise Mixer Space"), sigc::mem_fun (*this, &ARDOUR_UI::toggle_mixer_space));
 224         act = ActionManager::register_toggle_action (common_actions, X_("KeepTearoffs"), _("Show Toolbars"), mem_fun (*this, &ARDOUR_UI::toggle_keep_tearoffs));
 225         ActionManager::session_sensitive_actions.push_back (act);
 226
 227         act = ActionManager::register_toggle_action (common_actions, X_("ToggleMixerList"), _("Toggle Mixer List"), sigc::mem_fun (*this, &ARDOUR_UI::toggle_mixer_list));
 228         ActionManager::session_sensitive_actions.push_back (act);
 229
 230         act = ActionManager::register_toggle_action (common_actions, X_("ToggleMonitorSection"), _("Toggle Monitor Section Visibility"), sigc::mem_fun (*this, &ARDOUR_UI::toggle_monitor_section_visibility));
 231         act->set_sensitive (false);
 232
 233 if (Profile->get_mixbus())
 234         ActionManager::register_action (common_actions, X_("show-ui-prefs"), _("Show more UI preferences"), sigc::mem_fun (*this, &ARDOUR_UI::show_ui_prefs));
 235
 236         ActionManager::register_action (common_actions, X_("toggle-mixer"), S_("Window|Mixer"),  sigc::mem_fun(*this, &ARDOUR_UI::toggle_mixer_window));
 237         ActionManager::register_action (common_actions, X_("toggle-editor-mixer"), _("Toggle Editor+Mixer"),  sigc::mem_fun(*this, &ARDOUR_UI::toggle_editor_mixer));
 238         ActionManager::register_action (common_actions, X_("toggle-meterbridge"), S_("Window|Meterbridge"),  sigc::mem_fun(*this, &ARDOUR_UI::toggle_meterbridge));
 239
 240         ActionManager::register_action (common_actions, X_("reattach-all-tearoffs"), _("Reattach All Tearoffs"), sigc::mem_fun (*this, &ARDOUR_UI::reattach_all_tearoffs));
 241
 242         act = ActionManager::register_action (common_actions, X_("NewMIDITracer"), _("MIDI Tracer"), sigc::mem_fun(*this, &ARDOUR_UI::new_midi_tracer_window));
 243         ActionManager::session_sensitive_actions.push_back (act);
 244         ActionManager::register_action (common_actions, X_("chat"), _("Chat"),  sigc::mem_fun(*this, &ARDOUR_UI::launch_chat));
 245         /** TRANSLATORS: This is `Manual' in the sense of an instruction book that tells a user how to use Ardour */
 246         ActionManager::register_action (common_actions, X_("manual"), S_("Help|Manual"),  mem_fun(*this, &ARDOUR_UI::launch_manual));
 247         ActionManager::register_action (common_actions, X_("reference"), S_("Manual|Reference"),  mem_fun(*this, &ARDOUR_UI::launch_reference));
 248         ActionManager::register_action (common_actions, X_("tracker"), _("Report a Bug"), mem_fun(*this, &ARDOUR_UI::launch_tracker));
 249         ActionManager::register_action (common_actions, X_("cheat-sheet"), _("Cheat Sheet"), mem_fun(*this, &ARDOUR_UI::launch_cheat_sheet));
 250         ActionManager::register_action (common_actions, X_("website"), _("Ardour Website"), mem_fun(*this, &ARDOUR_UI::launch_website));
 251         ActionManager::register_action (common_actions, X_("website-dev"), _("Ardour Development"), mem_fun(*this, &ARDOUR_UI::launch_website_dev));
 252         ActionManager::register_action (common_actions, X_("forums"), _("User Forums"), mem_fun(*this, &ARDOUR_UI::launch_forums));
 253         ActionManager::register_action (common_actions, X_("howto-report"), _("How to Report a Bug"), mem_fun(*this, &ARDOUR_UI::launch_howto_report));
 254
 255         act = ActionManager::register_action (common_actions, X_("Save"), _("Save"),  sigc::hide_return (sigc::bind (sigc::mem_fun(*this, &ARDOUR_UI::save_state), string(""), false)));
 256         ActionManager::session_sensitive_actions.push_back (act);
 257         ActionManager::write_sensitive_actions.push_back (act);
 258
 259         Glib::RefPtr<ActionGroup> transport_actions = ActionGroup::create (X_("Transport"));
 260
 261         /* do-nothing action for the "transport" menu bar item */
 262
 263         ActionManager::register_action (transport_actions, X_("Transport"), _("Transport"));
 264
 265         /* these two are not used by key bindings, instead use ToggleRoll for that. these two do show up in
 266            menus and via button proxies.
 267         */
 268
 269         act = ActionManager::register_action (transport_actions, X_("Stop"), _("Stop"), sigc::mem_fun(*this, &ARDOUR_UI::transport_stop));
 270         ActionManager::session_sensitive_actions.push_back (act);
 271         ActionManager::transport_sensitive_actions.push_back (act);
 272         act = ActionManager::register_action (transport_actions, X_("Roll"), _("Roll"), sigc::mem_fun(*this, &ARDOUR_UI::transport_roll));
 273         ActionManager::session_sensitive_actions.push_back (act);
 274         ActionManager::transport_sensitive_actions.push_back (act);
 275
 276         act = ActionManager::register_action (transport_actions, X_("ToggleRoll"), _("Start/Stop"), sigc::bind (sigc::mem_fun (*this, &ARDOUR_UI::toggle_roll), false, false));
 277         ActionManager::session_sensitive_actions.push_back (act);
 278         ActionManager::transport_sensitive_actions.push_back (act);
 279         act = ActionManager::register_action (transport_actions, X_("alternate-ToggleRoll"), _("Start/Stop"), sigc::bind (sigc::mem_fun (*this, &ARDOUR_UI::toggle_roll), false, false));
 280         ActionManager::session_sensitive_actions.push_back (act);
 281         ActionManager::transport_sensitive_actions.push_back (act);
 282         act = ActionManager::register_action (transport_actions, X_("ToggleRollMaybe"), _("Start/Continue/Stop"), sigc::bind (sigc::mem_fun (*this, &ARDOUR_UI::toggle_roll), false, true));
 283         ActionManager::session_sensitive_actions.push_back (act);
 284         ActionManager::transport_sensitive_actions.push_back (act);
 285         act = ActionManager::register_action (transport_actions, X_("ToggleRollForgetCapture"), _("Stop and Forget Capture"), sigc::bind (sigc::mem_fun(*this, &ARDOUR_UI::toggle_roll), true, false));
 286         ActionManager::session_sensitive_actions.push_back (act);
 287         ActionManager::transport_sensitive_actions.push_back (act);
 288
 289         /* these two behave as follows:
 290
 291            - if transport speed != 1.0 or != -1.0, change speed to 1.0 or -1.0 (respectively)
 292            - otherwise do nothing
 293         */
 294
 295         act = ActionManager::register_action (transport_actions, X_("TransitionToRoll"), _("Transition to Roll"), sigc::bind (sigc::mem_fun (*editor, &PublicEditor::transition_to_rolling), true));
 296         ActionManager::session_sensitive_actions.push_back (act);
 297         ActionManager::transport_sensitive_actions.push_back (act);
 298
 299         act = ActionManager::register_action (transport_actions, X_("TransitionToReverse"), _("Transition to Reverse"), sigc::bind (sigc::mem_fun (*editor, &PublicEditor::transition_to_rolling), false));
 300         ActionManager::session_sensitive_actions.push_back (act);
 301         ActionManager::transport_sensitive_actions.push_back (act);
 302
 303         act = ActionManager::register_action (transport_actions, X_("Loop"), _("Play Loop Range"), sigc::mem_fun(*this, &ARDOUR_UI::toggle_session_auto_loop));
 304         ActionManager::session_sensitive_actions.push_back (act);
 305         ActionManager::transport_sensitive_actions.push_back (act);
 306         act = ActionManager::register_action (transport_actions, X_("PlaySelection"), _("Play Selection"), sigc::mem_fun(*this, &ARDOUR_UI::transport_play_selection));
 307         ActionManager::session_sensitive_actions.push_back (act);
 308         ActionManager::transport_sensitive_actions.push_back (act);
 309         act = ActionManager::register_action (transport_actions, X_("PlayPreroll"), _("Play Selection w/Preroll"), sigc::mem_fun(*this, &ARDOUR_UI::transport_play_preroll));
 310         ActionManager::session_sensitive_actions.push_back (act);
 311         ActionManager::transport_sensitive_actions.push_back (act);
 312
 313         act = ActionManager::register_action (transport_actions, X_("Record"), _("Enable Record"), sigc::bind (sigc::mem_fun(*this, &ARDOUR_UI::transport_record), false));
 314         ActionManager::session_sensitive_actions.push_back (act);
 315         ActionManager::write_sensitive_actions.push_back (act);
 316         act = ActionManager::register_action (transport_actions, X_("record-roll"), _("Start Recording"), sigc::bind (sigc::mem_fun(*this, &ARDOUR_UI::transport_record), true));
 317         ActionManager::session_sensitive_actions.push_back (act);
 318         ActionManager::write_sensitive_actions.push_back (act);
 319         ActionManager::transport_sensitive_actions.push_back (act);
 320         act = ActionManager::register_action (transport_actions, X_("alternate-record-roll"), _("Start Recording"), sigc::bind (sigc::mem_fun(*this, &ARDOUR_UI::transport_record), true));
 321         ActionManager::session_sensitive_actions.push_back (act);
 322         ActionManager::write_sensitive_actions.push_back (act);
 323         ActionManager::transport_sensitive_actions.push_back (act);
 324         act = ActionManager::register_action (transport_actions, X_("Rewind"), _("Rewind"), sigc::bind (sigc::mem_fun(*this, &ARDOUR_UI::transport_rewind), 0));
 325         ActionManager::session_sensitive_actions.push_back (act);
 326         ActionManager::transport_sensitive_actions.push_back (act);
 327         act = ActionManager::register_action (transport_actions, X_("RewindSlow"), _("Rewind (Slow)"), sigc::bind (sigc::mem_fun(*this, &ARDOUR_UI::transport_rewind), -1));
 328         ActionManager::session_sensitive_actions.push_back (act);
 329         ActionManager::transport_sensitive_actions.push_back (act);
 330         act = ActionManager::register_action (transport_actions, X_("RewindFast"), _("Rewind (Fast)"), sigc::bind (sigc::mem_fun(*this, &ARDOUR_UI::transport_rewind), 1));
 331         ActionManager::session_sensitive_actions.push_back (act);
 332         ActionManager::transport_sensitive_actions.push_back (act);
 333         act = ActionManager::register_action (transport_actions, X_("Forward"), _("Forward"), sigc::bind (sigc::mem_fun(*this, &ARDOUR_UI::transport_forward), 0));
 334         ActionManager::session_sensitive_actions.push_back (act);
 335         ActionManager::transport_sensitive_actions.push_back (act);
 336         act = ActionManager::register_action (transport_actions, X_("ForwardSlow"), _("Forward (Slow)"), sigc::bind (sigc::mem_fun(*this, &ARDOUR_UI::transport_forward), -1));
 337         ActionManager::session_sensitive_actions.push_back (act);
 338         ActionManager::transport_sensitive_actions.push_back (act);
 339         act = ActionManager::register_action (transport_actions, X_("ForwardFast"), _("Forward (Fast)"), sigc::bind (sigc::mem_fun(*this, &ARDOUR_UI::transport_forward), 1));
 340         ActionManager::session_sensitive_actions.push_back (act);
 341         ActionManager::transport_sensitive_actions.push_back (act);
 342         act = ActionManager::register_action (transport_actions, X_("GotoZero"), _("Go to Zero"), sigc::mem_fun(*this, &ARDOUR_UI::transport_goto_zero));
 343         ActionManager::session_sensitive_actions.push_back (act);
 344         ActionManager::transport_sensitive_actions.push_back (act);
 345         act = ActionManager::register_action (transport_actions, X_("GotoStart"), _("Go to Start"), sigc::mem_fun(*this, &ARDOUR_UI::transport_goto_start));
 346         ActionManager::session_sensitive_actions.push_back (act);
 347         ActionManager::transport_sensitive_actions.push_back (act);
 348         act = ActionManager::register_action (transport_actions, X_("alternate-GotoStart"), _("Go to Start"), sigc::mem_fun(*this, &ARDOUR_UI::transport_goto_start));
 349         ActionManager::session_sensitive_actions.push_back (act);
 350         ActionManager::transport_sensitive_actions.push_back (act);
 351         act = ActionManager::register_action (transport_actions, X_("GotoEnd"), _("Go to End"), sigc::mem_fun(*this, &ARDOUR_UI::transport_goto_end));
 352         ActionManager::session_sensitive_actions.push_back (act);
 353         ActionManager::transport_sensitive_actions.push_back (act);
 354         act = ActionManager::register_action (transport_actions, X_("GotoWallClock"), _("Go to Wall Clock"), sigc::mem_fun(*this, &ARDOUR_UI::transport_goto_wallclock));
 355         ActionManager::session_sensitive_actions.push_back (act);
 356         ActionManager::transport_sensitive_actions.push_back (act);
 357
 358         //these actions handle the numpad events, ProTools style
 359         act = ActionManager::register_action (transport_actions, X_("numpad-decimal"), _("Numpad Decimal"), mem_fun(*this, &ARDOUR_UI::transport_numpad_decimal));
 360         ActionManager::session_sensitive_actions.push_back (act);
 361         ActionManager::transport_sensitive_actions.push_back (act);
 362         act = ActionManager::register_action (transport_actions, X_("alternate-numpad-decimal"), _("Numpad Decimal"), mem_fun(*this, &ARDOUR_UI::transport_numpad_decimal));
 363         ActionManager::session_sensitive_actions.push_back (act);
 364         ActionManager::transport_sensitive_actions.push_back (act);
 365         act = ActionManager::register_action (transport_actions, X_("numpad-0"), _("Numpad 0"), bind (mem_fun(*this, &ARDOUR_UI::transport_numpad_event), 0));
 366         ActionManager::session_sensitive_actions.push_back (act);
 367         ActionManager::transport_sensitive_actions.push_back (act);
 368         act = ActionManager::register_action (transport_actions, X_("numpad-1"), _("Numpad 1"), bind (mem_fun(*this, &ARDOUR_UI::transport_numpad_event), 1));
 369         ActionManager::session_sensitive_actions.push_back (act);
 370         ActionManager::transport_sensitive_actions.push_back (act);
 371         act = ActionManager::register_action (transport_actions, X_("numpad-2"), _("Numpad 2"), bind (mem_fun(*this, &ARDOUR_UI::transport_numpad_event), 2));
 372         ActionManager::session_sensitive_actions.push_back (act);
 373         ActionManager::transport_sensitive_actions.push_back (act);
 374         act = ActionManager::register_action (transport_actions, X_("numpad-3"), _("Numpad 3"), bind (mem_fun(*this, &ARDOUR_UI::transport_numpad_event), 3));
 375         ActionManager::session_sensitive_actions.push_back (act);
 376         ActionManager::transport_sensitive_actions.push_back (act);
 377         act = ActionManager::register_action (transport_actions, X_("numpad-4"), _("Numpad 4"), bind (mem_fun(*this, &ARDOUR_UI::transport_numpad_event), 4));
 378         ActionManager::session_sensitive_actions.push_back (act);
 379         ActionManager::transport_sensitive_actions.push_back (act);
 380         act = ActionManager::register_action (transport_actions, X_("numpad-5"), _("Numpad 5"), bind (mem_fun(*this, &ARDOUR_UI::transport_numpad_event), 5));
 381         ActionManager::session_sensitive_actions.push_back (act);
 382         ActionManager::transport_sensitive_actions.push_back (act);
 383         act = ActionManager::register_action (transport_actions, X_("numpad-6"), _("Numpad 6"), bind (mem_fun(*this, &ARDOUR_UI::transport_numpad_event), 6));
 384         ActionManager::session_sensitive_actions.push_back (act);
 385         ActionManager::transport_sensitive_actions.push_back (act);
 386         act = ActionManager::register_action (transport_actions, X_("numpad-7"), _("Numpad 7"), bind (mem_fun(*this, &ARDOUR_UI::transport_numpad_event), 7));
 387         ActionManager::session_sensitive_actions.push_back (act);
 388         ActionManager::transport_sensitive_actions.push_back (act);
 389         act = ActionManager::register_action (transport_actions, X_("numpad-8"), _("Numpad 8"), bind (mem_fun(*this, &ARDOUR_UI::transport_numpad_event), 8));
 390         ActionManager::session_sensitive_actions.push_back (act);
 391         ActionManager::transport_sensitive_actions.push_back (act);
 392         act = ActionManager::register_action (transport_actions, X_("numpad-9"), _("Numpad 9"), bind (mem_fun(*this, &ARDOUR_UI::transport_numpad_event), 9));
 393         ActionManager::session_sensitive_actions.push_back (act);
 394         ActionManager::transport_sensitive_actions.push_back (act);
 395
 396         act = ActionManager::register_action (transport_actions, X_("focus-on-clock"), _("Focus On Clock"), sigc::mem_fun(*this, &ARDOUR_UI::focus_on_clock));
 397         ActionManager::session_sensitive_actions.push_back (act);
 398         ActionManager::transport_sensitive_actions.push_back (act);
 399
 400         act = ActionManager::register_action (transport_actions, X_("primary-clock-timecode"), _("Timecode"), sigc::bind (sigc::mem_fun(primary_clock, &AudioClock::set_mode), AudioClock::Timecode));
 401         ActionManager::session_sensitive_actions.push_back (act);
 402         act = ActionManager::register_action (transport_actions, X_("primary-clock-bbt"), _("Bars & Beats"), sigc::bind (sigc::mem_fun(primary_clock, &AudioClock::set_mode), AudioClock::BBT));
 403         ActionManager::session_sensitive_actions.push_back (act);
 404         act = ActionManager::register_action (transport_actions, X_("primary-clock-minsec"), _("Minutes & Seconds"), sigc::bind (sigc::mem_fun(primary_clock, &AudioClock::set_mode), AudioClock::MinSec));
 405         ActionManager::session_sensitive_actions.push_back (act);
 406         act = ActionManager::register_action (transport_actions, X_("primary-clock-samples"), _("Samples"), sigc::bind (sigc::mem_fun(primary_clock, &AudioClock::set_mode), AudioClock::Frames));
 407         ActionManager::session_sensitive_actions.push_back (act);
 408
 409         act = ActionManager::register_action (transport_actions, X_("secondary-clock-timecode"), _("Timecode"), sigc::bind (sigc::mem_fun(secondary_clock, &AudioClock::set_mode), AudioClock::Timecode));
 410         ActionManager::session_sensitive_actions.push_back (act);
 411         act = ActionManager::register_action (transport_actions, X_("secondary-clock-bbt"), _("Bars & Beats"), sigc::bind (sigc::mem_fun(secondary_clock, &AudioClock::set_mode), AudioClock::BBT));
 412         ActionManager::session_sensitive_actions.push_back (act);
 413         act = ActionManager::register_action (transport_actions, X_("secondary-clock-minsec"), _("Minutes & Seconds"), sigc::bind (sigc::mem_fun(secondary_clock, &AudioClock::set_mode), AudioClock::MinSec));
 414         ActionManager::session_sensitive_actions.push_back (act);
 415         act = ActionManager::register_action (transport_actions, X_("secondary-clock-samples"), _("Samples"), sigc::bind (sigc::mem_fun(secondary_clock, &AudioClock::set_mode), AudioClock::Frames));
 416         ActionManager::session_sensitive_actions.push_back (act);
 417
 418         act = ActionManager::register_toggle_action (transport_actions, X_("TogglePunchIn"), _("Punch In"), sigc::mem_fun(*this, &ARDOUR_UI::toggle_punch_in));
 419         act->set_short_label (_("In"));
 420         ActionManager::session_sensitive_actions.push_back (act);
 421         ActionManager::transport_sensitive_actions.push_back (act);
 422         act = ActionManager::register_toggle_action (transport_actions, X_("TogglePunchOut"), _("Punch Out"), sigc::mem_fun(*this, &ARDOUR_UI::toggle_punch_out));
 423         act->set_short_label (_("Out"));
 424         ActionManager::session_sensitive_actions.push_back (act);
 425         ActionManager::transport_sensitive_actions.push_back (act);
 426         act = ActionManager::register_toggle_action (transport_actions, X_("TogglePunch"), _("Punch In/Out"), sigc::mem_fun(*this, &ARDOUR_UI::toggle_punch));
 427         act->set_short_label (_("In/Out"));
 428         ActionManager::session_sensitive_actions.push_back (act);
 429         ActionManager::transport_sensitive_actions.push_back (act);
 430         act = ActionManager::register_toggle_action (transport_actions, X_("ToggleClick"), _("Click"), sigc::mem_fun(*this, &ARDOUR_UI::toggle_click));
 431         ActionManager::session_sensitive_actions.push_back (act);
 432         ActionManager::transport_sensitive_actions.push_back (act);
 433         act = ActionManager::register_toggle_action (transport_actions, X_("ToggleAutoInput"), _("Auto Input"), sigc::mem_fun(*this, &ARDOUR_UI::toggle_auto_input));
 434         ActionManager::session_sensitive_actions.push_back (act);
 435         ActionManager::transport_sensitive_actions.push_back (act);
 436         act = ActionManager::register_toggle_action (transport_actions, X_("ToggleAutoPlay"), _("Auto Play"), sigc::mem_fun(*this, &ARDOUR_UI::toggle_auto_play));
 437         ActionManager::session_sensitive_actions.push_back (act);
 438         ActionManager::transport_sensitive_actions.push_back (act);
 439         act = ActionManager::register_toggle_action (transport_actions, X_("ToggleAutoReturn"), _("Auto Return"), sigc::mem_fun(*this, &ARDOUR_UI::toggle_auto_return));
 440         ActionManager::session_sensitive_actions.push_back (act);
 441         ActionManager::transport_sensitive_actions.push_back (act);
 442         act = ActionManager::register_toggle_action (transport_actions, X_("ToggleFollowEdits"), _("Follow Edits"), sigc::mem_fun(*this, &ARDOUR_UI::toggle_follow_edits));
 443         ActionManager::session_sensitive_actions.push_back (act);
 444         ActionManager::transport_sensitive_actions.push_back (act);
 445
 446
 447         act = ActionManager::register_toggle_action (transport_actions, X_("ToggleVideoSync"), _("Sync Startup to Video"), sigc::mem_fun(*this, &ARDOUR_UI::toggle_video_sync));
 448         ActionManager::session_sensitive_actions.push_back (act);
 449         act = ActionManager::register_toggle_action (transport_actions, X_("ToggleTimeMaster"), _("Time Master"), sigc::mem_fun(*this, &ARDOUR_UI::toggle_time_master));
 450         ActionManager::session_sensitive_actions.push_back (act);
 451         act = ActionManager::register_toggle_action (transport_actions, X_("ToggleExternalSync"), _("Use External Positional Sync Source"), sigc::mem_fun(*this, &ARDOUR_UI::toggle_external_sync));
 452         ActionManager::session_sensitive_actions.push_back (act);
 453
 454         for (int i = 1; i <= 32; ++i) {
 455                 string const a = string_compose (X_("ToggleRecordEnableTrack%1"), i);
 456                 string const n = string_compose (_("Toggle Record Enable Track %1"), i);
 457                 act = ActionManager::register_action (common_actions, a.c_str(), n.c_str(), sigc::bind (sigc::mem_fun (*this, &ARDOUR_UI::toggle_record_enable), i - 1));
 458                 ActionManager::session_sensitive_actions.push_back (act);
 459         }
 460
 461         Glib::RefPtr<ActionGroup> shuttle_actions = ActionGroup::create ("ShuttleActions");
 462
 463         shuttle_actions->add (Action::create (X_("SetShuttleUnitsPercentage"), _("Percentage")), hide_return (sigc::bind (sigc::mem_fun (*Config, &RCConfiguration::set_shuttle_units), Percentage)));
 464         shuttle_actions->add (Action::create (X_("SetShuttleUnitsSemitones"), _("Semitones")), hide_return (sigc::bind (sigc::mem_fun (*Config, &RCConfiguration::set_shuttle_units), Semitones)));
 465
 466         Glib::RefPtr<ActionGroup> option_actions = ActionGroup::create ("options");
 467
 468         act = ActionManager::register_toggle_action (option_actions, X_("SendMTC"), _("Send MTC"), sigc::mem_fun (*this, &ARDOUR_UI::toggle_send_mtc));
 469         ActionManager::session_sensitive_actions.push_back (act);
 470         act = ActionManager::register_toggle_action (option_actions, X_("SendMMC"), _("Send MMC"), sigc::mem_fun (*this, &ARDOUR_UI::toggle_send_mmc));
 471         ActionManager::session_sensitive_actions.push_back (act);
 472         act = ActionManager::register_toggle_action (option_actions, X_("UseMMC"), _("Use MMC"), sigc::mem_fun (*this, &ARDOUR_UI::toggle_use_mmc));
 473         ActionManager::session_sensitive_actions.push_back (act);
 474         act = ActionManager::register_toggle_action (option_actions, X_("SendMidiClock"), _("Send MIDI Clock"), sigc::mem_fun (*this, &ARDOUR_UI::toggle_send_midi_clock));
 475         ActionManager::session_sensitive_actions.push_back (act);
 476         act = ActionManager::register_toggle_action (option_actions, X_("SendMIDIfeedback"), _("Send MIDI Feedback"), sigc::mem_fun (*this, &ARDOUR_UI::toggle_send_midi_feedback));
 477         ActionManager::session_sensitive_actions.push_back (act);
 478
 479         /* MIDI */
 480
 481         Glib::RefPtr<ActionGroup> midi_actions = ActionGroup::create (X_("MIDI"));
 482         ActionManager::register_action (midi_actions, X_("panic"), _("Panic"), sigc::mem_fun(*this, &ARDOUR_UI::midi_panic));
 483
 484         ActionManager::add_action_group (shuttle_actions);
 485         ActionManager::add_action_group (option_actions);
 486         ActionManager::add_action_group (transport_actions);
 487         ActionManager::add_action_group (main_actions);
 488         ActionManager::add_action_group (main_menu_actions);
 489         ActionManager::add_action_group (common_actions);
 490         ActionManager::add_action_group (midi_actions);
 491 }
 492
 493 void
 494 ARDOUR_UI::build_menu_bar ()
 495 {
 496         menu_bar = dynamic_cast<MenuBar*> (ActionManager::get_widget (X_("/Main")));
 497         menu_bar->set_name ("MainMenuBar");
 498
 499         /*
 500          * This is needed because this property does not get installed
 501          * until the Menu GObject class is registered, which happens
 502          * when the first menu instance is created.
 503          */
 504         // XXX bug in gtkmm causes this to popup an error message
 505         // Gtk::Settings::get_default()->property_gtk_can_change_accels() = true;
 506         // so use this instead ...
 507         gtk_settings_set_long_property (gtk_settings_get_default(), "gtk-can-change-accels", 1, "Ardour:designers");
 508
 509         EventBox* ev = manage (new EventBox);
 510         ev->show ();
 511         CairoHPacker* hbox = manage (new CairoHPacker);
 512         hbox->set_name (X_("StatusBarBox"));
 513         hbox->show ();
 514         hbox->set_border_width (3);
 515
 516         VBox* vbox = manage (new VBox);
 517         vbox->pack_start (*hbox, true, false);
 518         vbox->show();
 519
 520         ev->add (*vbox);
 521
 522         wall_clock_label.set_name ("WallClock");
 523         wall_clock_label.set_use_markup ();
 524         disk_space_label.set_name ("WallClock");
 525         disk_space_label.set_use_markup ();
 526         timecode_format_label.set_name ("WallClock");
 527         timecode_format_label.set_use_markup ();
 528         cpu_load_label.set_name ("CPULoad");
 529         cpu_load_label.set_use_markup ();
 530         xrun_label.set_name ("XrunLabel");
 531         xrun_label.set_use_markup ();
 532         peak_thread_work_label.set_name ("PeakThreadWork");
 533         peak_thread_work_label.set_use_markup ();
 534         buffer_load_label.set_name ("BufferLoad");
 535         buffer_load_label.set_use_markup ();
 536         sample_rate_label.set_name ("SampleRate");
 537         sample_rate_label.set_use_markup ();
 538         format_label.set_name ("Format");
 539         format_label.set_use_markup ();
 540
 541 #ifndef TOP_MENUBAR
 542         menu_hbox.pack_start (*menu_bar, false, false);
 543 #else
 544         use_menubar_as_top_menubar ();
 545 #endif
 546
 547         bool wall_clock = false;
 548         bool disk_space = false;
 549
 550         if (!Profile->get_small_screen()) {
 551 #ifndef GTKOSX
 552                 // OSX provides its own wallclock, thank you very much
 553                 wall_clock = true;
 554 #endif
 555                 disk_space = true;
 556         }
 557
 558         hbox->pack_end (error_alert_button, false, false, 2);
 559
 560         hbox->pack_end (wall_clock_label, false, false, 2);
 561         hbox->pack_end (disk_space_label, false, false, 4);
 562         hbox->pack_end (xrun_label, false, false, 4);
 563         hbox->pack_end (peak_thread_work_label, false, false, 4);
 564         hbox->pack_end (cpu_load_label, false, false, 4);
 565         hbox->pack_end (buffer_load_label, false, false, 4);
 566         hbox->pack_end (sample_rate_label, false, false, 4);
 567         hbox->pack_end (timecode_format_label, false, false, 4);
 568         hbox->pack_end (format_label, false, false, 4);
 569
 570         menu_hbox.pack_end (*ev, false, false, 2);
 571
 572         menu_bar_base.set_name ("MainMenuBar");
 573         menu_bar_base.add (menu_hbox);
 574
 575 #ifndef GTKOSX
 576         _status_bar_visibility.add (&wall_clock_label,      X_("WallClock"), _("Wall Clock"), wall_clock);
 577 #endif
 578         _status_bar_visibility.add (&disk_space_label,      X_("Disk"),      _("Disk Space"), disk_space);
 579         _status_bar_visibility.add (&cpu_load_label,        X_("DSP"),       _("DSP"), true);
 580         _status_bar_visibility.add (&xrun_label,            X_("XRun"),      _("X-run"), false);
 581         _status_bar_visibility.add (&peak_thread_work_label,X_("Peakfile"),  _("Active Peak-file Work"), false);
 582         _status_bar_visibility.add (&buffer_load_label,     X_("Buffers"),   _("Buffers"), true);
 583         _status_bar_visibility.add (&sample_rate_label,     X_("Audio"),     _("Audio"), true);
 584         _status_bar_visibility.add (&timecode_format_label, X_("TCFormat"),  _("Timecode Format"), true);
 585         _status_bar_visibility.add (&format_label,          X_("Format"),    _("File Format"), true);
 586
 587         ev->signal_button_press_event().connect (sigc::mem_fun (_status_bar_visibility, &VisibilityGroup::button_press_event));
 588         ev->signal_button_release_event().connect (sigc::mem_fun (*this, &ARDOUR_UI::xrun_button_release));
 589 }
 590
 591 void
 592 ARDOUR_UI::use_menubar_as_top_menubar ()
 593 {
 594         Gtk::Widget* widget;
 595         Application* app = Application::instance ();
 596
 597         /* the addresses ("/ui/Main...") used below are based on the menu definitions in the menus file
 598          */
 599
 600         /* Quit will be taken care of separately */
 601
 602         if ((widget = ActionManager::get_widget ("/ui/Main/Session/Quit"))) {
 603                 widget->hide ();
 604         }
 605
 606         /* Put items for About and Preferences into App menu (the
 607          * ardour.menus.in file does not list them for OS X)
 608          */
 609
 610         GtkApplicationMenuGroup* group = app->add_app_menu_group ();
 611
 612         if ((widget = ActionManager::get_widget ("/ui/Main/Session/toggle-about"))) {
 613                 app->add_app_menu_item (group, dynamic_cast<MenuItem*>(widget));
 614         }
 615
 616         if ((widget = ActionManager::get_widget ("/ui/Main/Session/toggle-rc-options-editor"))) {
 617                 app->add_app_menu_item (group, dynamic_cast<MenuItem*>(widget));
 618         }
 619
 620         app->set_menu_bar (*menu_bar);
 621 }
 622
 623 void
 624 ARDOUR_UI::save_ardour_state ()
 625 {
 626         if (!keyboard || !mixer || !editor || !meterbridge) {
 627                 return;
 628         }
 629
 630         /* XXX this is all a bit dubious. add_extra_xml() uses
 631            a different lifetime model from add_instant_xml().
 632         */
 633
 634         XMLNode* node = new XMLNode (keyboard->get_state());
 635         Config->add_extra_xml (*node);
 636         Config->add_extra_xml (get_transport_controllable_state());
 637
 638         XMLNode* window_node = new XMLNode (X_("UI"));
 639         window_node->add_property (_status_bar_visibility.get_state_name().c_str(), _status_bar_visibility.get_state_value ());
 640
 641         /* Windows */
 642
 643         WM::Manager::instance().add_state (*window_node);
 644
 645         /* tearoffs */
 646
 647         XMLNode* tearoff_node = new XMLNode (X_("Tearoffs"));
 648
 649         if (transport_tearoff) {
 650                 XMLNode* t = new XMLNode (X_("transport"));
 651                 transport_tearoff->add_state (*t);
 652                 tearoff_node->add_child_nocopy (*t);
 653         }
 654
 655         if (mixer->monitor_section()) {
 656                 XMLNode* t = new XMLNode (X_("monitor-section"));
 657                 mixer->monitor_section()->tearoff().add_state (*t);
 658                 tearoff_node->add_child_nocopy (*t);
 659         }
 660
 661         if (editor->mouse_mode_tearoff()) {
 662                 XMLNode* t = new XMLNode (X_("mouse-mode"));
 663                 editor->mouse_mode_tearoff ()->add_state (*t);
 664                 tearoff_node->add_child_nocopy (*t);
 665         }
 666
 667         window_node->add_child_nocopy (*tearoff_node);
 668
 669         Config->add_extra_xml (*window_node);
 670         Config->add_extra_xml (audio_midi_setup->get_state());
 671
 672         Config->save_state();
 673
 674         UIConfiguration::instance().save_state ();
 675
 676         XMLNode& enode (static_cast<Stateful*>(editor)->get_state());
 677         XMLNode& mnode (mixer->get_state());
 678         XMLNode& bnode (meterbridge->get_state());
 679
 680         if (_session) {
 681                 _session->add_instant_xml (enode);
 682                 _session->add_instant_xml (mnode);
 683                 _session->add_instant_xml (bnode);
 684                 if (location_ui) {
 685                         _session->add_instant_xml (location_ui->ui().get_state ());
 686                 }
 687         } else {
 688                 Config->add_instant_xml (enode);
 689                 Config->add_instant_xml (mnode);
 690                 if (location_ui) {
 691                         Config->add_instant_xml (location_ui->ui().get_state ());
 692                 }
 693         }
 694         delete &enode;
 695
 696         Keyboard::save_keybindings ();
 697 }
 698
 699 void
 700 ARDOUR_UI::resize_text_widgets ()
 701 {
 702         set_size_request_to_display_given_text (cpu_load_label, "DSP: 100.0%", 2, 2);
 703         set_size_request_to_display_given_text (buffer_load_label, "Buffers: p:100% c:100%", 2, 2);
 704         set_size_request_to_display_given_text (xrun_label, "X: 9999", 2, 2);
 705 }
 706
 707 void
 708 ARDOUR_UI::focus_on_clock ()
 709 {
 710         if (editor && primary_clock) {
 711                 editor->present ();
 712                 primary_clock->focus ();
 713         }
 714 }
 715
 716 bool
 717 ARDOUR_UI::xrun_button_release (GdkEventButton* ev)
 718 {
 719         if (ev->button != 1 || !Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
 720                 return false;
 721         }
 722
 723         if (_session) {
 724                 _session->reset_xrun_count ();
 725                 update_xrun_count ();
 726         }
 727         return true;
 728 }