* Added CanvasSysEx class for displaying SysExes
[ardour.git] / gtk2_ardour / audio_clock.cc
index 7ad7e4df65956ab6bfb31e6607f6ae8f92ab07f3..c27015801f9bffb2f9aec6d8cf433c3808ccc225 100644 (file)
@@ -15,7 +15,6 @@
     along with this program; if not, write to the Free Software
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
-    $Id$
 */
 
 #include <cstdio> // for sprintf
@@ -29,6 +28,7 @@
 #include <ardour/ardour.h>
 #include <ardour/session.h>
 #include <ardour/tempo.h>
+#include <ardour/profile.h>
 #include <sigc++/bind.h>
 
 #include "ardour_ui.h"
@@ -74,14 +74,18 @@ AudioClock::AudioClock (std::string clock_name, bool transient, std::string widg
          colon4 (":"),
          colon5 (":"),
          b1 ("|"),
-         b2 ("|")
+         b2 ("|"),
+         last_when(0)
 {
        session = 0;
        last_when = 0;
+       last_pdelta = 0;
+       last_sdelta = 0;
        key_entry_state = 0;
        ops_menu = 0;
        dragging = false;
-       
+       bbt_reference_time = -1;
+
        if (with_info) {
                frames_upper_info_label = manage (new Label);
                frames_lower_info_label = manage (new Label);
@@ -100,6 +104,9 @@ AudioClock::AudioClock (std::string clock_name, bool transient, std::string widg
                Gtkmm2ext::set_size_request_to_display_given_text(*smpte_upper_info_label, "23.98",0,0);
                Gtkmm2ext::set_size_request_to_display_given_text(*smpte_lower_info_label, "NDF",0,0);
 
+               Gtkmm2ext::set_size_request_to_display_given_text(*bbt_upper_info_label, "88|88",0,0);
+               Gtkmm2ext::set_size_request_to_display_given_text(*bbt_lower_info_label, "888.88",0,0);
+
                frames_info_box.pack_start (*frames_upper_info_label, true, true);
                frames_info_box.pack_start (*frames_lower_info_label, true, true);
                smpte_info_box.pack_start (*smpte_upper_info_label, true, true);
@@ -336,6 +343,18 @@ AudioClock::setup_events ()
        ms_minutes_ebox.signal_scroll_event().connect (bind (mem_fun(*this, &AudioClock::field_button_scroll_event), MS_Minutes));
        ms_seconds_ebox.signal_scroll_event().connect (bind (mem_fun(*this, &AudioClock::field_button_scroll_event), MS_Seconds));
 
+       hours_ebox.signal_key_press_event().connect (bind (mem_fun(*this, &AudioClock::field_key_press_event), SMPTE_Hours));
+       minutes_ebox.signal_key_press_event().connect (bind (mem_fun(*this, &AudioClock::field_key_press_event), SMPTE_Minutes));
+       seconds_ebox.signal_key_press_event().connect (bind (mem_fun(*this, &AudioClock::field_key_press_event), SMPTE_Seconds));
+       frames_ebox.signal_key_press_event().connect (bind (mem_fun(*this, &AudioClock::field_key_press_event), SMPTE_Frames));
+       audio_frames_ebox.signal_key_press_event().connect (bind (mem_fun(*this, &AudioClock::field_key_press_event), AudioFrames));
+       bars_ebox.signal_key_press_event().connect (bind (mem_fun(*this, &AudioClock::field_key_press_event), Bars));
+       beats_ebox.signal_key_press_event().connect (bind (mem_fun(*this, &AudioClock::field_key_press_event), Beats));
+       ticks_ebox.signal_key_press_event().connect (bind (mem_fun(*this, &AudioClock::field_key_press_event), Ticks));
+       ms_hours_ebox.signal_key_press_event().connect (bind (mem_fun(*this, &AudioClock::field_key_press_event), MS_Hours));
+       ms_minutes_ebox.signal_key_press_event().connect (bind (mem_fun(*this, &AudioClock::field_key_press_event), MS_Minutes));
+       ms_seconds_ebox.signal_key_press_event().connect (bind (mem_fun(*this, &AudioClock::field_key_press_event), MS_Seconds));
+
        hours_ebox.signal_key_release_event().connect (bind (mem_fun(*this, &AudioClock::field_key_release_event), SMPTE_Hours));
        minutes_ebox.signal_key_release_event().connect (bind (mem_fun(*this, &AudioClock::field_key_release_event), SMPTE_Minutes));
        seconds_ebox.signal_key_release_event().connect (bind (mem_fun(*this, &AudioClock::field_key_release_event), SMPTE_Seconds));
@@ -371,6 +390,15 @@ AudioClock::setup_events ()
        ms_hours_ebox.signal_focus_out_event().connect (bind (mem_fun(*this, &AudioClock::field_focus_out_event), MS_Hours));
        ms_minutes_ebox.signal_focus_out_event().connect (bind (mem_fun(*this, &AudioClock::field_focus_out_event), MS_Minutes));
        ms_seconds_ebox.signal_focus_out_event().connect (bind (mem_fun(*this, &AudioClock::field_focus_out_event), MS_Seconds));
+
+       clock_base.signal_focus_in_event().connect (mem_fun (*this, &AudioClock::drop_focus_handler));
+}
+
+bool
+AudioClock::drop_focus_handler (GdkEventFocus* ignored)
+{
+       Keyboard::magic_widget_drop_focus ();
+       return false;
 }
 
 void
@@ -384,17 +412,40 @@ AudioClock::on_realize ()
 }
 
 void
-AudioClock::set (nframes_t when, bool force)
+AudioClock::set (nframes_t when, bool force, nframes_t offset, char which)
 {
 
        if ((!force && !is_visible()) || session == 0) {
                return;
        }
        
-       if (when == last_when && !force) {
+       if (when == last_when && !offset && !force) {
                return;
        }
 
+       bool pdelta = Config->get_primary_clock_delta_edit_cursor();
+       bool sdelta = Config->get_secondary_clock_delta_edit_cursor();
+
+       if (offset && which == 'p' && pdelta) {
+               when = (when > offset) ? when - offset : offset - when;
+       } else if (offset && which == 's' && sdelta) {
+               when = (when > offset) ? when - offset : offset - when;
+       }
+
+       if (which == 'p' && pdelta && !last_pdelta) {
+               set_widget_name("TransportClockDisplayDelta");
+               last_pdelta = true;
+       } else if (which == 'p' && !pdelta && last_pdelta) {
+               set_widget_name("TransportClockDisplay");
+               last_pdelta = false;
+       } else if (which == 's'  && sdelta && !last_sdelta) {
+               set_widget_name("SecondaryClockDisplayDelta");
+               last_sdelta = true;
+       } else if (which == 's' && !sdelta && last_sdelta) {
+               set_widget_name("SecondaryClockDisplay");
+               last_sdelta = false;
+       }
+
        switch (_mode) {
        case SMPTE:
                set_smpte (when, force);
@@ -454,15 +505,21 @@ AudioClock::set_frames (nframes_t when, bool force)
                        sprintf (buf, "%.3fK", rate/1000.0f);
                }
                
-               frames_upper_info_label->set_text (buf);
+               if (frames_upper_info_label->get_text() != buf) {
+                       frames_upper_info_label->set_text (buf);
+               }
                
                float vid_pullup = Config->get_video_pullup();
                
                if (vid_pullup == 0.0) {
-                       frames_lower_info_label->set_text(_("none"));
+                       if (frames_lower_info_label->get_text () != _("none")) {
+                               frames_lower_info_label->set_text(_("none"));
+                       }
                } else {
                        sprintf (buf, "%-6.4f", vid_pullup);
-                       frames_lower_info_label->set_text (buf);
+                       if (frames_lower_info_label->get_text() != buf) {
+                               frames_lower_info_label->set_text (buf);
+                       }
                }
        }
 }      
@@ -552,15 +609,24 @@ AudioClock::set_smpte (nframes_t when, bool force)
                        sprintf (buf, "%.2f", smpte_frames);
                }
                
-               smpte_upper_info_label->set_text (buf);
+               if (smpte_upper_info_label->get_text() != buf) {
+                       smpte_upper_info_label->set_text (buf);
+               }
                
-               if (session->smpte_drop_frames()) {
-                       sprintf (buf, "DF");
+               if ((fabs(smpte_frames - 29.97) < 0.0001) || smpte_frames == 30) {
+                       if (session->smpte_drop_frames()) {
+                               sprintf (buf, "DF");
+                       } else {
+                               sprintf (buf, "NDF");
+                       }
                } else {
-                       sprintf (buf, "NDF");
+                       // there is no drop frame alternative
+                       buf[0] = '\0';
                }
                
-               smpte_lower_info_label->set_text (buf);
+               if (smpte_lower_info_label->get_text() != buf) {
+                       smpte_lower_info_label->set_text (buf);
+               }
        }
 }
 
@@ -570,20 +636,53 @@ AudioClock::set_bbt (nframes_t when, bool force)
        char buf[16];
        BBT_Time bbt;
 
-       session->tempo_map().bbt_time (when, bbt);
+       /* handle a common case */
+       if (is_duration) {
+               if (when == 0) {
+                       bbt.bars = 0;
+                       bbt.beats = 0;
+                       bbt.ticks = 0;  
+               } else {
+                       session->tempo_map().bbt_time (when, bbt);
+                       bbt.bars--;
+                       bbt.beats--;
+               }
+       } else {
+               session->tempo_map().bbt_time (when, bbt);
+       }
+
        sprintf (buf, "%03" PRIu32, bbt.bars);
-       bars_label.set_text (buf);
+       if (force || bars_label.get_text () != buf) {
+               bars_label.set_text (buf);
+       }
        sprintf (buf, "%02" PRIu32, bbt.beats);
-       beats_label.set_text (buf);
+       if (force || beats_label.get_text () != buf) {
+               beats_label.set_text (buf);
+       }
        sprintf (buf, "%04" PRIu32, bbt.ticks);
-       ticks_label.set_text (buf);
+       if (force || ticks_label.get_text () != buf) {
+               ticks_label.set_text (buf);
+       }
        
        if (bbt_upper_info_label) {
-               TempoMap::Metric m (session->tempo_map().metric_at (when));
+               nframes64_t pos;
+
+               if (bbt_reference_time < 0) {
+                       pos = when;
+               } else {
+                       pos = bbt_reference_time;
+               }
+
+               TempoMap::Metric m (session->tempo_map().metric_at (pos));
+
                sprintf (buf, "%-5.2f", m.tempo().beats_per_minute());
-               bbt_lower_info_label->set_text (buf);
+               if (bbt_lower_info_label->get_text() != buf) {
+                       bbt_lower_info_label->set_text (buf);
+               }
                sprintf (buf, "%g|%g", m.meter().beats_per_bar(), m.meter().note_divisor());
-               bbt_upper_info_label->set_text (buf);
+               if (bbt_upper_info_label->get_text() != buf) {
+                       bbt_upper_info_label->set_text (buf);
+               }
        }
 }
 
@@ -599,7 +698,7 @@ AudioClock::set_session (Session *s)
                AudioClock::Mode amode;
                
                if (node) {
-                       if ((prop = node->property (_name.c_str())) != 0) {
+                       if ((prop = node->property (_name)) != 0) {
                                amode = AudioClock::Mode (string_2_enum (prop->value(), amode));
                                set_mode (amode);
                        }
@@ -609,6 +708,39 @@ AudioClock::set_session (Session *s)
        }
 }
 
+void
+AudioClock::focus ()
+{
+       switch (_mode) {
+       case SMPTE:
+               hours_ebox.grab_focus ();
+               break;
+
+       case BBT:
+               bars_ebox.grab_focus ();
+               break;
+
+       case MinSec:
+               ms_hours_ebox.grab_focus ();
+               break;
+
+       case Frames:
+               frames_ebox.grab_focus ();
+               break;
+
+       case Off:
+               break;
+       }
+}
+
+
+bool
+AudioClock::field_key_press_event (GdkEventKey *ev, Field field)
+{
+       /* all key activity is handled on key release */
+       return true;
+}
+
 bool
 AudioClock::field_key_release_event (GdkEventKey *ev, Field field)
 {
@@ -655,7 +787,7 @@ AudioClock::field_key_release_event (GdkEventKey *ev, Field field)
                label = &ticks_label;
                break;
        default:
-               return FALSE;
+               return false;
        }
 
        switch (ev->keyval) {
@@ -705,22 +837,24 @@ AudioClock::field_key_release_event (GdkEventKey *ev, Field field)
                if (_mode == MinSec && field == MS_Seconds) {
                        new_char = '.';
                } else {
-                       return FALSE;
+                       return false;
                }
                break;
 
+       case GDK_Tab:
        case GDK_Return:
        case GDK_KP_Enter:
-       case GDK_Tab:
                move_on = true;
                break;
 
        case GDK_Escape:
+               key_entry_state = 0;
                clock_base.grab_focus ();
-               return TRUE;
+               ChangeAborted();  /*  EMIT SIGNAL  */
+               return true;
 
        default:
-               return FALSE;
+               return false;
        }
 
        if (!move_on) {
@@ -768,6 +902,18 @@ AudioClock::field_key_release_event (GdkEventKey *ev, Field field)
                                // Check SMPTE fields for sanity (may also adjust fields)
                                smpte_sanitize_display();
                                break;
+                       case Bars:
+                       case Beats:
+                       case Ticks:
+                               // Bars should never be, unless this clock is for a duration
+                               if (atoi(bars_label.get_text()) == 0 && !is_duration) {
+                                       bars_label.set_text("001");
+                               }
+                               //  beats should never be 0, unless this clock is for a duration
+                               if (atoi(beats_label.get_text()) == 0 && !is_duration) {
+                                       beats_label.set_text("01");
+                               }
+                               break;
                        default:
                                break;
                        }
@@ -830,7 +976,14 @@ AudioClock::field_key_release_event (GdkEventKey *ev, Field field)
 
        }
 
-       return TRUE;
+       //if user hit Enter, lose focus
+       switch (ev->keyval) {
+       case GDK_Return:
+       case GDK_KP_Enter:
+               clock_base.grab_focus ();
+       }
+
+       return true;
 }
 
 bool
@@ -838,6 +991,8 @@ AudioClock::field_focus_in_event (GdkEventFocus *ev, Field field)
 {
        key_entry_state = 0;
 
+       Keyboard::magic_widget_grab_focus ();
+
        switch (field) {
        case SMPTE_Hours:
                hours_ebox.set_flags (Gtk::HAS_FOCUS);
@@ -887,7 +1042,7 @@ AudioClock::field_focus_in_event (GdkEventFocus *ev, Field field)
                break;
        }
 
-       return FALSE;
+       return false;
 }
 
 bool
@@ -944,21 +1099,20 @@ AudioClock::field_focus_out_event (GdkEventFocus *ev, Field field)
                break;
        }
 
-       return FALSE;
+       Keyboard::magic_widget_drop_focus ();
+
+       return false;
 }
 
 bool
 AudioClock::field_button_release_event (GdkEventButton *ev, Field field)
 {
-
-
        if (dragging) {
-               gdk_pointer_ungrab(GDK_CURRENT_TIME);
+               gdk_pointer_ungrab (GDK_CURRENT_TIME);
                dragging = false;
-               if (ev->y > drag_start_y+1 || ev->y < drag_start_y-1 || Keyboard::modifier_state_equals (ev->state, Keyboard::Shift)){
-                  // we actually dragged so return without setting editing focus, or we shift clicked
-
-                       return TRUE;
+               if (ev->y > drag_start_y+1 || ev->y < drag_start_y-1 || Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)){
+                       // we actually dragged so return without setting editing focus, or we shift clicked
+                       return true;
                }
        }
 
@@ -967,7 +1121,7 @@ AudioClock::field_button_release_event (GdkEventButton *ev, Field field)
                        build_ops_menu ();
                }
                ops_menu->popup (1, ev->time);
-               return TRUE;
+               return true;
        }
 
        if (Keyboard::is_context_menu_event (ev)) {
@@ -975,7 +1129,7 @@ AudioClock::field_button_release_event (GdkEventButton *ev, Field field)
                        build_ops_menu ();
                }
                ops_menu->popup (1, ev->time);
-               return TRUE;
+               return true;
        } 
 
        switch (ev->button) {
@@ -1024,25 +1178,25 @@ AudioClock::field_button_release_event (GdkEventButton *ev, Field field)
                break;
        }
 
-       return TRUE;
+       return true;
 }
 
 bool
 AudioClock::field_button_press_event (GdkEventButton *ev, Field field)
 {
-       if (session == 0) return FALSE;
+       if (session == 0) return false;
 
        nframes_t frames = 0;
 
        switch (ev->button) {
        case 1:
-               if (Keyboard::modifier_state_equals (ev->state, Keyboard::Shift)) {
+               if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
                        set (frames, true);
                        ValueChanged (); /* EMIT_SIGNAL */
                                        }
        
                 /* make absolutely sure that the pointer is grabbed */
-               gdk_pointer_grab(ev->window,FALSE ,
+               gdk_pointer_grab(ev->window,false ,
                                 GdkEventMask( Gdk::POINTER_MOTION_MASK | Gdk::BUTTON_PRESS_MASK |Gdk::BUTTON_RELEASE_MASK), 
                                 NULL,NULL,ev->time);
                dragging = true;
@@ -1052,7 +1206,7 @@ AudioClock::field_button_press_event (GdkEventButton *ev, Field field)
                break;
 
        case 2:
-               if (Keyboard::modifier_state_equals (ev->state, Keyboard::Shift)) {
+               if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
                        set (frames, true);
                        ValueChanged (); /* EMIT_SIGNAL */
                }
@@ -1060,54 +1214,23 @@ AudioClock::field_button_press_event (GdkEventButton *ev, Field field)
 
        case 3:
                /* used for context sensitive menu */
-               return FALSE;
-               break;
-
-       case 4:
-               if (Keyboard::modifier_state_equals (ev->state, Keyboard::Shift)) {
-                       frames = get_frames (field);
-                       if (frames != 0) {
-                               if (Keyboard::modifier_state_equals (ev->state, Keyboard::Control)) {
-                                       frames *= 10;
-                               }
-                               set (current_time() + frames, true);
-                                ValueChanged (); /* EMIT_SIGNAL */
-                       }
-               }
-               break;
-
-       case 5:
-               if (Keyboard::modifier_state_equals (ev->state, Keyboard::Shift)) {
-                       frames = get_frames (field);
-                       if (frames != 0) {
-                               if (Keyboard::modifier_state_equals (ev->state, Keyboard::Control)) {
-                                       frames *= 10;
-                               }
-
-                               if ((double)current_time() - (double)frames < 0.0) {
-                                       set (0, true);
-                               }
-                               else {
-                                       set (current_time() - frames, true);
-                               }
-                               
-                                ValueChanged (); /* EMIT_SIGNAL */
-                       }
-               }
+               return false;
                break;
 
        default:
-               return FALSE;
+               return false;
                break;
        }
        
-       return TRUE;
+       return true;
 }
 
 bool
 AudioClock::field_button_scroll_event (GdkEventScroll *ev, Field field)
 {
-       if (session == 0) return FALSE;
+       if (session == 0) {
+               return false;
+       }
 
        nframes_t frames = 0;
 
@@ -1116,7 +1239,7 @@ AudioClock::field_button_scroll_event (GdkEventScroll *ev, Field field)
        case GDK_SCROLL_UP:
               frames = get_frames (field);
               if (frames != 0) {
-                     if (Keyboard::modifier_state_equals (ev->state, Keyboard::Control)) {
+                     if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
                             frames *= 10;
                      }
                      set (current_time() + frames, true);
@@ -1127,7 +1250,7 @@ AudioClock::field_button_scroll_event (GdkEventScroll *ev, Field field)
        case GDK_SCROLL_DOWN:
               frames = get_frames (field);
               if (frames != 0) {
-                     if (Keyboard::modifier_state_equals (ev->state, Keyboard::Control)) {
+                     if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
                             frames *= 10;
                      }
                      
@@ -1142,30 +1265,30 @@ AudioClock::field_button_scroll_event (GdkEventScroll *ev, Field field)
               break;
 
        default:
-               return FALSE;
+               return false;
                break;
        }
        
-       return TRUE;
+       return true;
 }
 
 bool
 AudioClock::field_motion_notify_event (GdkEventMotion *ev, Field field)
 {
        if (session == 0 || !dragging) {
-               return FALSE;
+               return false;
        }
        
        float pixel_frame_scale_factor = 0.2f;
 
 /*
-       if (Keyboard::modifier_state_equals (ev->state, Keyboard::Control))  {
+       if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier))  {
                pixel_frame_scale_factor = 0.1f;
        }
 
 
        if (Keyboard::modifier_state_contains (ev->state, 
-                                              Keyboard::Control|Keyboard::Alt)) {
+                                              Keyboard::PrimaryModifier|Keyboard::SecondaryModifier)) {
 
                pixel_frame_scale_factor = 0.025f;
        }
@@ -1200,7 +1323,7 @@ AudioClock::field_motion_notify_event (GdkEventMotion *ev, Field field)
 
        }
 
-       return TRUE;
+       return true;
 }
 
 nframes_t
@@ -1779,6 +1902,11 @@ AudioClock::bbt_frame_from_display (nframes_t pos) const
        any.bbt.beats = atoi (beats_label.get_text());
        any.bbt.ticks = atoi (ticks_label.get_text());
 
+       if (is_duration) {
+               any.bbt.bars++;
+               any.bbt.beats++;
+       }
+
        nframes_t ret = session->convert_to_frames_at (pos, any);
 
        return ret;
@@ -1816,18 +1944,14 @@ AudioClock::build_ops_menu ()
        ops_menu = new Menu;
        MenuList& ops_items = ops_menu->items();
        ops_menu->set_name ("ArdourContextMenu");
-
-       Menu *mode_menu = manage (new Menu);
-       MenuList& mode_items = mode_menu->items();
-       mode_menu->set_name ("ArdourContextMenu");
        
-       mode_items.push_back (MenuElem (_("Timecode"), bind (mem_fun(*this, &AudioClock::set_mode), SMPTE)));
-       mode_items.push_back (MenuElem (_("Bars:Beats"), bind (mem_fun(*this, &AudioClock::set_mode), BBT)));
-       mode_items.push_back (MenuElem (_("Minutes:Seconds"), bind (mem_fun(*this, &AudioClock::set_mode), MinSec)));
-       mode_items.push_back (MenuElem (_("Audio Frames"), bind (mem_fun(*this, &AudioClock::set_mode), Frames)));
-       mode_items.push_back (MenuElem (_("Off"), bind (mem_fun(*this, &AudioClock::set_mode), Off)));
-
-       ops_items.push_back (MenuElem (_("Mode"), *mode_menu));
+       if (!Profile->get_sae()) {
+               ops_items.push_back (MenuElem (_("Timecode"), bind (mem_fun(*this, &AudioClock::set_mode), SMPTE)));
+       }
+       ops_items.push_back (MenuElem (_("Bars:Beats"), bind (mem_fun(*this, &AudioClock::set_mode), BBT)));
+       ops_items.push_back (MenuElem (_("Minutes:Seconds"), bind (mem_fun(*this, &AudioClock::set_mode), MinSec)));
+       ops_items.push_back (MenuElem (_("Samples"), bind (mem_fun(*this, &AudioClock::set_mode), Frames)));
+       ops_items.push_back (MenuElem (_("Off"), bind (mem_fun(*this, &AudioClock::set_mode), Off)));
 }
 
 void
@@ -1845,16 +1969,8 @@ AudioClock::set_mode (Mode m)
        if (_mode == m) {
                return;
        }
-       switch (_mode) {
-       case SMPTE:
-       case BBT:
-       case MinSec:
-       case Frames:
-               clock_base.remove ();
-               break;
-       case Off:
-               break;
-       }
+       
+       clock_base.remove ();
        
        _mode = m;
 
@@ -1876,6 +1992,7 @@ AudioClock::set_mode (Mode m)
                break;
 
        case Off:
+               clock_base.add (off_hbox);
                break;
        }
 
@@ -1887,6 +2004,7 @@ AudioClock::set_mode (Mode m)
 
        if (!is_transient) {
                ModeChanged (); /* EMIT SIGNAL */
+               mode_changed (); /* EMIT SIGNAL */
        }
 }
 
@@ -1920,7 +2038,14 @@ AudioClock::set_size_requests ()
                break;
 
        case Off:
+               Gtkmm2ext::set_size_request_to_display_given_text (off_hbox, "00000", 5, 5);
                break;
                
        }
 }
+
+void
+AudioClock::set_bbt_reference (nframes64_t pos)
+{
+       bbt_reference_time = pos;
+}