Timeline: Add a blinker for pending seek.

Timeline/Engine/Engine.C

@@ -100,7 +100,7 @@ Engine::sync ( jack_transport_state_t state, jack_position_t *pos )
                 seeking = true;
             }
 
-            int r = true;
+            bool r = true;
 
             if ( timeline )
                 r = timeline->seek_pending();

Timeline/Engine/Timeline.C

@@ -126,22 +126,22 @@ Timeline::resize_buffers ( nframes_t nframes )
     }
 }
 
-int
+/** return true if any playback stream's buffer is less than 50% full */
+bool
 Timeline::seek_pending ( void )
 {
-    THREAD_ASSERT( RT );
-
-    int r = 0;
+//    THREAD_ASSERT( RT );
 
     for ( int i = tracks->children(); i-- ; )
     {
         Track *t = (Track*)tracks->child( i );
 
         if ( t->playback_ds )
-            r += t->playback_ds->buffer_percent() < 50;
+            if ( t->playback_ds->buffer_percent() < 50 )
+                return true;
     }
 
-    return r;
+    return false;
 }
 
 

Timeline/TLE.fl

@@ -22,7 +22,7 @@ comment {//
 } {in_source in_header
 } 
 
-decl {const float STATUS_UPDATE_FREQ = 0.5f;} {} 
+decl {const float STATUS_UPDATE_FREQ = 0.1f;} {} 
 
 decl {\#include "Fl_Menu_Settings.H"} {} 
 
@@ -220,7 +220,7 @@ Loggable::progress_callback( &TLE::progress_cb, this );} {}
       label Timeline
       callback {if ( Fl::event_key() != FL_Escape )
 	o->hide();} open
-      private xywh {701 103 1025 770} type Double resizable xclass Non_DAW visible
+      private xywh {703 114 1025 770} type Double resizable xclass Non_DAW visible
     } {
       Fl_Menu_Bar menubar {open
         private xywh {0 0 1024 25}
@@ -657,7 +657,7 @@ ab.run();}
         }
         Fl_Box {} {
           label {<empty>}
-          xywh {487 27 203 42} resizable
+          xywh {487 27 148 42} resizable
           code0 {o->labeltype( FL_NO_LABEL );}
         }
         Fl_Group {} {open
@@ -720,6 +720,13 @@ ab.run();}
           code0 {\#include "FL/Fl_Blinker.H"}
           class Fl_Blinker
         }
+        Fl_Button seek_blinker {
+          label SEEK
+          xywh {640 50 50 15} box ROUNDED_BOX down_box ROUNDED_BOX color 10 selection_color 2 labelfont 2 labelcolor 39 deactivate
+          code0 {\#include "FL/Fl_Blinker.H"}
+          code1 {o->interval( Fl_Blinker::FAST );}
+          class Fl_Blinker
+        }
         Fl_Box stats_box {
           label {<stats>}
           xywh {810 1 215 21} labelsize 13 labelcolor 53 align 88
@@ -829,6 +836,8 @@ rec_blinker->value( transport->rolling && transport->rec_enabled() );
 sm_blinker->value( timeline->session_manager_name() != NULL );
 sm_blinker->tooltip( timeline->session_manager_name() );
 selected_blinker->value( timeline->nselected() );} {selected
+seek_blinker->value( timeline->seek_pending() );
+project_name->redraw();} {selected
     }
   }
   Function {update_cb( void *v )} {open private return_type {static void}
@@ -917,7 +926,7 @@ if ( logo_box->image() )
 	((Fl_Shared_Image*)logo_box->image())->release();
 	logo_box->image( NULL );
 }} open
-      private xywh {653 248 520 740} type Double modal visible
+      private xywh {655 259 520 740} type Double modal visible
     } {
       Fl_Value_Output {} {
         label {Sample Rate}
@@ -1017,7 +1026,7 @@ if ( logo_box->image() )
 	((Fl_Shared_Image*)logo_box->image())->release();
 	logo_box->image( NULL );
 }} open
-      private xywh {1344 87 495 655} type Double xclass {Non-DAW} visible
+      private xywh {1346 98 495 655} type Double xclass {Non-DAW} visible
     } {
       Fl_Tabs {} {open
         xywh {0 264 497 392}

Timeline/Timeline.H

@@ -215,6 +215,7 @@ public:
     void stop ( void );
 
     void wait_for_buffers ( void );
+    bool seek_pending ( void );
 
 private:
 
@@ -230,5 +231,4 @@ private:
     void resize_buffers ( nframes_t nframes );
     nframes_t process ( nframes_t nframes );
     void seek ( nframes_t frame );
-    int seek_pending ( void );
 };