Play with push stuff.

Timeline/Region.C

@@ -95,8 +95,8 @@ Region::init ( void )
 Region::Region ( const Region & rhs )
 {
     _offset    = rhs._offset;
-//    _track     = rhs._track;
-    _track     = NULL;
+    _track     = rhs._track;
+//    _track     = NULL;
     _clip      = rhs._clip;
     _start     = rhs._start;
     _end       = rhs._end;
@@ -410,6 +410,9 @@ changed:
 void
 Region::draw_box( int X, int Y, int W, int H )
 {
+    if ( ! shown() )
+        return;
+
     /* dirty hack to keep the box from flipping to vertical at small sizes */
 
     fl_push_clip( x(), Y, w(), H );
@@ -429,6 +432,9 @@ Region::draw_box( int X, int Y, int W, int H )
 void
 Region::draw ( int X, int Y, int W, int H )
 {
+    if ( ! shown() )
+        return;
+
     if ( ! ( W > 0 && H > 0 ) )
         return;
 

Timeline/Track.C

@@ -103,15 +103,18 @@ Track::draw ( void )
 
 
     for ( list <Track_Widget *>::const_iterator r = _widgets.begin();  r != _widgets.end(); r++ )
-        (*r)->draw( X, Y, W, H );
+            (*r)->draw( X, Y, W, H );
 
 
     /* draw crossfades */
     for ( list <Track_Widget *>::const_iterator r = _widgets.begin();  r != _widgets.end(); r++ )
     {
+        if ( ! (*r)->shown() )
+            continue;
+
         Track_Widget *o = overlaps( *r );
 
-        if ( o )
+        if ( o && o->shown() )
         {
             if ( *o <= **r )
             {
@@ -150,9 +153,12 @@ Track::draw ( void )
 
     for ( list <Track_Widget *>::const_iterator r = _widgets.begin();  r != _widgets.end(); r++ )
     {
+        if ( ! (*r)->shown() )
+            continue;
+
         Track_Widget *o = overlaps( *r );
 
-        if ( o )
+        if ( o && o->shown() )
         {
             if ( *o <= **r )
             {
@@ -371,11 +377,14 @@ Track::handle ( int m )
                 {
                     Track_Widget::original( r );
                     Track_Widget::pushed( r->clone( r ) );
+                    r->hide();
                 }
 
                 if ( retval && m == FL_RELEASE )
                 {
-                    /* FIXME: copy here */
+                    *Track_Widget::original() = *Track_Widget::pushed();
+                    delete Track_Widget::pushed();
+
                     Track_Widget::pushed( NULL );
                     Track_Widget::original( NULL );
                 }

Timeline/Track_Widget.H

@@ -61,6 +61,7 @@ protected:
     Fl_Color _color;                                            /* color of waveform */
     Fl_Color _box_color;                                        /* color of background (box) */
 
+    bool _shown;
 
     Drag *_drag;
 
@@ -72,6 +73,8 @@ public:
 
             _offset = _start = _end = 0;
 
+            _shown = true;
+
             _drag = NULL;
         }
 
@@ -135,6 +138,10 @@ public:
 
 //    static void pushed ( Track_Widget *w ) { Track_Widget::_pushed = w; }
 
+    bool shown ( void ) const { return _shown; }
+    void show ( void ) { _shown = true; }
+    void hide ( void ) { _shown = false; }
+
     void
     offset ( nframes_t where )
         {