Allow moving the playhead to the mouse position with 'p' press.

Timeline/Timeline.C

@@ -702,6 +702,17 @@ Timeline::handle ( int m )
 
                     return 1;
                 }
+                case 'p':
+                {
+                    int X = Fl::event_x() - Track::width();
+
+                    if ( X > 0 )
+                    {
+                        transport.locate( xoffset + x_to_ts( X ) );
+                    }
+
+                    return 1;
+                }
                 default:
                     return Fl_Overlay_Window::handle( m );
             }

Timeline/Transport.C

@@ -31,3 +31,9 @@ Transport::poll ( void )
 
     rolling = ts == JackTransportRolling;
 }
+
+void
+Transport::locate ( nframes_t frame )
+{
+    jack_transport_locate( engine->client(), frame );
+}

Timeline/Transport.H

@@ -27,6 +27,7 @@ struct Transport : public jack_position_t
     bool rolling;
 
     void poll ( void );
+    void locate ( nframes_t frame );
 };
 
 extern Transport transport;