Make track use track_widget base class instead of regions.

Region.C

@@ -300,15 +300,13 @@ Region::resize ( void )
 
 int measure = 40;
 
-/* X is the timeline offset, W is the width of the track */
+/* Draw (part of) region. Start is  */
 void
-Region::draw ( int X, int Y, int W, int H )
+Region::draw (  int X, int Y, int W, int H )
 {
     if ( ! ( W > 0 && H > 0 ) )
         return;
 
-
-
     if ( _offset > timeline.xoffset + timeline.x_to_ts( _track->w() ) ||
          (  _offset < timeline.xoffset &&
             _offset + (_end - _start) < timeline.xoffset ) )

Region.H

@@ -35,7 +35,7 @@ using namespace std;
 
 
 /* Base class for virtual widget on a track */
-class TrackWidget
+class Track_Widget
 {
 
 protected:
@@ -78,9 +78,36 @@ public:
     nframes_t start ( void ) const { return _start; }
 
     nframes_t length ( void ) const { return _end - _start; }
+
+    virtual void
+    draw ( int X, int Y, int W, int H )
+        {
+            fl_draw_box( FL_FLAT_BOX, X, Y, W, H, _box_color );
+        }
+
+    virtual int
+    handle ( int m ) { return 0; }
+
+
+};
+
+
+class Tempo : public Track_Widget
+{
+    float _tempo;
+
+    void
+    draw ( int X, int Y, int W, int H )
+        {
+
+
+
+
+        }
+
 };
 
-class Region : public TrackWidget
+class Region : public Track_Widget
 {
 
     Clip *_clip;                                                /* clip this region represents */

Track.C

@@ -33,7 +33,7 @@ Track::draw ( void )
 
     fl_push_clip( x(), y(), w(), h() );
 
-    for ( list <Region *>::iterator r = _regions.begin();  r != _regions.end(); r++ )
+    for ( list <Track_Widget *>::iterator r = _regions.begin();  r != _regions.end(); r++ )
     {
 //        (*r)->draw( timeline.xoffset + x(), y(), w(), h() );
         (*r)->draw( x(), y(), w(), h() );
@@ -43,18 +43,18 @@ Track::draw ( void )
 }
 
 void
-Track::remove_region ( Region *r )
+Track::remove_region ( Track_Widget *r )
 {
     _regions.remove( r );
 }
 
 
-Region *
+Track_Widget *
 Track::event_region ( void )
 {
 // FIXME: doesn't handle overlap!
     int ets = timeline.xoffset + timeline.x_to_ts( Fl::event_x() );
-    for ( list <Region *>::iterator r = _regions.begin();  r != _regions.end(); r++ )
+    for ( list <Track_Widget *>::iterator r = _regions.begin();  r != _regions.end(); r++ )
         if ( ets > (*r)->offset() && ets < (*r)->offset() + (*r)->length() )
             return (*r);
 
@@ -62,7 +62,7 @@ Track::event_region ( void )
 }
 
 void
-Track::add ( Region *r )
+Track::add ( Track_Widget *r )
 {
     if ( r->track() )
     {
@@ -83,16 +83,16 @@ Track::add ( Region *r )
 
 /* snap /r/ to nearest edge */
 void
-Track::snap ( Region *r )
+Track::snap ( Track_Widget *r )
 {
     const int snap_pixels = 10;
 
     int rx1 = r->x();
     int rx2 = r->x() + r->w();
 
-    for ( list <Region*>::iterator i = _regions.begin(); i != _regions.end(); i++ )
+    for ( list <Track_Widget*>::iterator i = _regions.begin(); i != _regions.end(); i++ )
     {
-        const Region *w = (*i);
+        const Track_Widget *w = (*i);
 
         if ( w == r )
             continue;
@@ -131,7 +131,7 @@ done:
 int
 Track::handle ( int m )
 {
-    static Region *current_region;
+    static Track_Widget *current_region;
 
     switch ( m )
     {
@@ -180,7 +180,7 @@ Track::handle ( int m )
             return 1;
         default:
         {
-            Region *r = event_region();
+            Track_Widget *r = event_region();
             if ( current_region )
                 r = current_region;
 

Track.H

@@ -32,17 +32,18 @@
 using std::list;
 
 class Region;
+class Track_Widget;
 
 class Track : public Fl_Group
 {
     Track *_next;
     Track *_prev;
 
-    list <Region *> _regions;
+    list <Track_Widget *> _regions;
 
     char *_name;
 
-    Region *event_region ( void );
+    Track_Widget *event_region ( void );
 
 public:
 
@@ -62,9 +63,9 @@ public:
 
 
     void draw ( void );
-    void remove_region ( Region *r );
-    void add ( Region *r );
-    void snap ( Region *r );
+    void remove_region ( Track_Widget *r );
+    void add ( Track_Widget *r );
+    void snap ( Track_Widget *r );
     int handle ( int m );
 
 };