Work in snapping some more.

Region.C

@@ -277,8 +277,16 @@ void
 Region::resize ( void )
 {
     int X = timeline.ts_to_x( _offset );
+
+    assert( _end >= _start );
+
     int W = timeline.ts_to_x( _end - _start );
 
+    printf( "%dx%d\n", X, W );
+
+    if ( W > 5000 )
+        W = 5000;
+
     if ( W )
         Fl_Widget::resize( X, y(), W, h() );
 }

Timeline.H

@@ -23,19 +23,24 @@
 #include <FL/Fl_Pack.H>
 
 #include "Clip.H"
+#include <math.h>
+
+#include <assert.h>
 
 struct Timeline {
     Fl_Scroll *scroll;
     Fl_Pack *tracks;
 
     float fpp;                                                  /* frames per pixel */
+//    nframes_t fpp;
 
     nframes_t sample_rate;
 
     int
     ts_to_x( nframes_t ts )
         {
-            return ts / fpp;
+//            assert( ts / fpp > 0 );
+            return  ts / fpp;
         }
 
     nframes_t

Track.H

@@ -101,24 +101,24 @@ public:
 
                 if ( abs( rx1 - wx2 ) < snap_pixels )
                 {
-                    r->offset( w->offset() + ( w->end() - w->start() ) + 1 );
+                    r->offset( w->offset() + w->length() + 1 );
 
-                    printf( "snap: %lu | %lu\n", w->offset() + (w->end() - w->start()), r->offset() );
+                    printf( "snap: %lu | %lu\n", w->offset() + w->length(), r->offset() );
 
                     goto done;
                 }
 
                 if ( abs( rx2 - wx1 ) < snap_pixels )
                 {
-                    r->offset( (w->offset() - ( r->end() - r->start() )) - 1 );
+                    r->offset( ( w->offset() - r->length() ) - 1 );
 
-                    printf( "snap: %lu | %lu\n", r->offset() + (r->end() - r->start()), w->offset() );
+                    printf( "snap: %lu | %lu\n", r->offset() + r->length(), w->offset() );
 
                     goto done;
                 }
             }
 
-            r->offset( timeline.x_to_ts( r->x() ));
+            r->offset( timeline.x_to_ts( r->x() ) );
 
         done:
 

Waveform.H

@@ -71,6 +71,7 @@ public:
     nframes_t start ( void ) const { return _start; }
     void end ( nframes_t e ) { _end = e; }
     nframes_t end ( void ) const { return _end; }
+    nframes_t length ( void ) const { return _end - _start; }
     void scale ( float s ) { _scale = s; }
     float scale ( void ) const { return _scale; }
 

main.C

@@ -88,15 +88,16 @@ main ( int argc, char **argv )
 
     timeline.sample_rate = 44100;
 
-    timeline.tracks = new Fl_Pack( 0, 0, 5000, 5000 );
+    timeline.tracks = new Fl_Pack( 0, 0, 32767, 5000 );
     timeline.tracks->type( Fl_Pack::VERTICAL );
+    timeline.tracks->spacing( 20 );
 
     Fl::get_system_colors();
     Fl::scheme( "plastic" );
 
 //    Fl_Group *pack = new Fl_Group( 0, 0, 5000, 600 );
 
-    Track *track1 = new Track( 40, 0, 5000, 100 );
+    Track *track1 = new Track( 40, 0, 32768, 100 );
 
 //    pack->type( Fl_Pack::VERTICAL );
 //    pack->box( FL_DOWN_BOX );
@@ -107,10 +108,7 @@ main ( int argc, char **argv )
 
 //    wave->resize( 0, 0, 500, 100 );
 
-    //   wave->peaks( peaks );
-    wave->start( 0 );
-//    wave->end( (len / sizeof( float )) / 2 );
-    wave->end( 50 );
+    wave->offset( 1024 );
 
     wave->color( FL_CYAN );
     wave->selection_color( fl_darker( FL_GRAY ) );