More comments.

Timeline/Audio_Sequence.C

@@ -17,6 +17,9 @@
 /* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 /*******************************************************************************/
 
+/* An Audio_Sequence is a sequence of Audio_Regions. Takes and 'track
+ * contents' consist of these objects */
+
 #include <Fl/fl_ask.H>
 
 #include "Audio_Sequence.H"

Timeline/LASH.C

@@ -17,7 +17,7 @@
 /* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 /*******************************************************************************/
 
-/* actual implementation of our side of the LASH protocol */
+/* Actual implementation of our side of the LASH protocol */
 
 /* NOTES: Since LASH doesn't provide us with the information we
  * need--when we need it--we just punt and only use LASH to save and

Timeline/LASH_Client.C

@@ -17,11 +17,14 @@
 /* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 /*******************************************************************************/
 
+/* Handler based wrapper for LASH */
+
 #include "LASH_Client.H"
 
-
 #include "util/debug.h"
 
+
+
 LASH_Client::LASH_Client ( )
 {
     _void = 0;
@@ -32,6 +35,8 @@ LASH_Client::~LASH_Client ( )
     /* TODO: anything? */
 }
 
+
+
 #ifdef HAVE_LASH
 
 #include <lash/lash.h>

Timeline/Loggable.C

@@ -17,6 +17,13 @@
 /* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 /*******************************************************************************/
 
+/* This class handles all journaling. All journaled objects must
+   inherit from Loggable as well as define a few special methods (via
+   macros), get and set methods, and have contructors and destructors
+   that call log_create() and log_destroy() in the appropriate
+   order. Any action that might affect multiple loggable objects
+   *must* be braced by calls to Loggable::block_start() and
+   Loggable::block_end() in order for Undo to work properly. */
 
 #include "Loggable.H"
 

Timeline/Project.C

@@ -20,6 +20,8 @@
 /* Routings for opening/closing/creation of projects. All the actual
    project state belongs to Timeline and other classes. */
 
+/* Project management routines. */
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>

Timeline/Timeline.C

@@ -17,6 +17,9 @@
 /* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 /*******************************************************************************/
 
+/* This is the Timeline widget, which contains all the tracks and
+ * provides cursor overlays, scrolling, zooming, measure lines, tempo
+ * map and just about everything else. */
 
 #include <FL/Fl_Scroll.H>
 #include <FL/Fl_Pack.H>

Timeline/Track.C

@@ -17,6 +17,12 @@
 /* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 /*******************************************************************************/
 
+/* A Track is a container for various sequences; the sequence, the
+ * takes (inactive sequences), annotation sequences, control
+ * sequences */
+/* TODO: split into Track and Audio_Track (and maybe later Video_Track
+ * and MIDI_Track */
+
 #include "Track.H"
 
 #include "Transport.H"

Timeline/Transport.C

@@ -17,6 +17,7 @@
 /* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 /*******************************************************************************/
 
+/* Controls the audio transport */
 
 #include "Transport.H"
 
@@ -26,56 +27,7 @@
 
 #define client engine->client()
 
-void
-Transport::poll ( void )
-{
-    jack_transport_state_t ts;
-
-    ts = jack_transport_query( client, this );
-
-    rolling = ts == JackTransportRolling;
-}
-
-void
-Transport::locate ( nframes_t frame )
-{
-    jack_transport_locate( client, frame );
-}
-
-
-void
-Transport::start ( void )
-{
-//    MESSAGE( "Starting transport" );
-    if ( _record_button->value() )
-        timeline->record();
-
-    jack_transport_start( client );
-}
-
-void
-Transport::stop ( void )
-{
-//    MESSAGE( "Stopping transport" );
-    if ( _record_button->value() )
-        toggle_record();
-
-    jack_transport_stop( client );
-}
-
-void
-Transport::toggle ( void )
-{
-    if ( rolling )
-        stop();
-    else
-        start();
-}
-
-
-/*******/
-/* GUI */
-/*******/
+
 
 Transport::Transport ( int X, int Y, int W, int H, const char *L )
     : Fl_Pack( X, Y, W, H, L )
@@ -118,6 +70,8 @@ Transport::Transport ( int X, int Y, int W, int H, const char *L )
     end();
 }
 
+
+
 void
 Transport::cb_button ( Fl_Widget *w, void *v )
 {
@@ -174,3 +128,53 @@ Transport::handle ( int m )
         return Fl_Pack::handle( m );
 
 }
+
+/***********/
+/* Control */
+/***********/
+
+void
+Transport::poll ( void )
+{
+    jack_transport_state_t ts;
+
+    ts = jack_transport_query( client, this );
+
+    rolling = ts == JackTransportRolling;
+}
+
+void
+Transport::locate ( nframes_t frame )
+{
+    jack_transport_locate( client, frame );
+}
+
+
+void
+Transport::start ( void )
+{
+//    MESSAGE( "Starting transport" );
+    if ( _record_button->value() )
+        timeline->record();
+
+    jack_transport_start( client );
+}
+
+void
+Transport::stop ( void )
+{
+//    MESSAGE( "Stopping transport" );
+    if ( _record_button->value() )
+        toggle_record();
+
+    jack_transport_stop( client );
+}
+
+void
+Transport::toggle ( void )
+{
+    if ( rolling )
+        stop();
+    else
+        start();
+}

Timeline/Waveform.C

@@ -17,6 +17,8 @@
 /* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 /*******************************************************************************/
 
+/* routines to draw a waveform from peak data */
+
 #include <FL/fl_draw.H>
 
 #include "Waveform.H"