Clean up measure line code more.

Timeline.C

@@ -207,9 +207,13 @@ Timeline::draw_measure_lines ( int X, int Y, int W, int H, Fl_Color color )
     {
         measure = ts_to_x( (double)(sample_rate * 60) / beats_per_minute( x_to_ts( x ) + xoffset ));
 
+        const int abs_x = ts_to_x( xoffset ) + x;
+
+        if ( 0 == abs_x % measure )
+        {
             int bpb = beats_per_bar( x_to_ts( x ) + xoffset );
 
-        if ( 0 == (x / measure) % bpb )
+            if ( 0 == (abs_x / measure) % bpb )
             {
                 if ( measure * bpb < 8 )
                     break;
@@ -224,9 +228,135 @@ Timeline::draw_measure_lines ( int X, int Y, int W, int H, Fl_Color color )
                 fl_color( beat );
             }
 
-        if ( 0 == (ts_to_x( xoffset ) + x) % measure )
+
             fl_line( x, Y, x, Y + H );
+        }
 
     }
     fl_line_style( FL_SOLID, 0 );
 }
+
+
+void
+Timeline::position ( int X )
+{
+    _old_xposition = xoffset;
+
+    xoffset = x_to_ts( X );
+
+    damage( FL_DAMAGE_SCROLL );
+}
+
+void
+Timeline::draw_clip ( void * v, int X, int Y, int W, int H )
+{
+    Timeline *tl = (Timeline *)v;
+
+//            printf( "draw_clip: %d,%d %dx%d\n", X, Y, W, H );
+    fl_push_clip( X, Y, W, H );
+
+    fl_color( rand() );
+    fl_rectf( X, Y, X + W, Y + H );
+
+    tl->draw_child( *tl->tracks );
+    tl->draw_child( *tl->rulers );
+
+    fl_pop_clip();
+}
+
+
+void
+Timeline::draw ( void )
+{
+    int X, Y, W, H;
+
+    X = tracks->x() + Fl::box_dx( tracks->child( 0 )->box() ) + 1;
+    Y = tracks->y();
+    W = tracks->w() - Fl::box_dw( tracks->child( 0 )->box() ) - 1;
+    H = tracks->h();
+
+
+/*             fl_color( FL_RED ); */
+/*             fl_rect( X, Y, X + W, Y + H ); */
+
+    if ( damage() & FL_DAMAGE_ALL )
+//                 ( damage() & ( FL_DAMAGE_CHILD | FL_DAMAGE_SCROLL ) ) )
+    {
+
+        draw_box( box(), x(), y(), w(), h(), color() );
+
+        fl_push_clip( rulers->x(), rulers->y(), rulers->w(), rulers->h() );
+        draw_child( *rulers );
+        fl_pop_clip();
+
+        fl_push_clip( tracks->x(), rulers->y() + rulers->h(), tracks->w(), h() - hscroll->h() );
+        draw_child( *tracks );
+        fl_pop_clip();
+
+        draw_child( *hscroll );
+        draw_child( *vscroll );
+
+        return;
+    }
+
+    if ( damage() & FL_DAMAGE_CHILD )
+    {
+
+/*         if ( damage() & FL_DAMAGE_SCROLL ) */
+/*             fl_push_no_clip(); */
+
+        fl_push_clip( rulers->x(), rulers->y(), rulers->w(), rulers->h() );
+        update_child( *rulers );
+        fl_pop_clip();
+
+        fl_push_clip( tracks->x(), rulers->y() + rulers->h(), tracks->w(), h() - rulers->h()  - hscroll->h() );
+        update_child( *tracks );
+        fl_pop_clip();
+
+        update_child( *hscroll );
+        update_child( *vscroll );
+
+/*         if ( damage() & FL_DAMAGE_SCROLL ) */
+/*             fl_pop_clip(); */
+
+    }
+
+
+    if ( damage() & FL_DAMAGE_SCROLL )
+    {
+        int dx = ts_to_x( _old_xposition ) - ts_to_x( xoffset );
+        int dy = _old_yposition - yposition;
+
+        if ( ! dy )
+            fl_scroll( X, rulers->y(), W, rulers->h(), dx, 0, draw_clip, this );
+
+        Y = rulers->y() + rulers->h();
+        H = h() - rulers->h() - hscroll->h();
+
+        fl_scroll( X, Y, W, H, dx, dy, draw_clip, this );
+
+        _old_xposition = xoffset;
+        _old_yposition = yposition;
+
+    }
+
+
+}
+
+
+int
+Timeline::handle ( int m )
+{
+    switch ( m )
+    {
+        case FL_MOUSEWHEEL:
+        {
+            if ( hscroll->handle( m ) )
+                return 1;
+
+            return vscroll->handle( m );
+        }
+        default:
+            return Fl_Group::handle( m );
+    }
+}

Timeline.H

@@ -51,6 +51,8 @@ using std::list;
 struct Timeline : public Fl_Group
 {
 
+    static void draw_clip ( void * v, int X, int Y, int W, int H );
+
     int _old_xposition;
     int _old_yposition;
 
@@ -98,138 +100,15 @@ struct Timeline : public Fl_Group
             return x * fpp;
         }
 
+/* #define FOR_CHILDREN_OF( name, ind )                                    \ */
+/*     for ( int i = (name) ->children(); i-- && ( (ind) = (name) ->child( i ) ); ) */
+
     float beats_per_minute ( nframes_t when ) const;
-    void beats_per_minute ( nframes_t when, float bpm );
     int beats_per_bar ( nframes_t when ) const;
-
+    void beats_per_minute ( nframes_t when, float bpm );
     void draw_measure_lines ( int X, int Y, int W, int H, Fl_Color color );
+    void position ( int X );
+    void draw ( void );
+    int handle ( int m );
 
-    /** set scroll position */
-    void
-    position ( int X )
-        {
-            _old_xposition = xoffset;
-
-            xoffset = x_to_ts( X );
-
-            damage( FL_DAMAGE_SCROLL );
-
-/*             rulers->damage( FL_DAMAGE_SCROLL ); */
-/*             tracks->damage( FL_DAMAGE_SCROLL ); */
-
-        }
-
-
-#define FOR_CHILDREN_OF( name, ind )                                    \
-    for ( int i = (name) ->children(); i-- && ( (ind) = (name) ->child( i ) ); )
-
-    static void
-    draw_clip ( void * v, int X, int Y, int W, int H )
-        {
-            Timeline *tl = (Timeline *)v;
-
-//            printf( "draw_clip: %d,%d %dx%d\n", X, Y, W, H );
-            fl_push_clip( X, Y, W, H );
-
-            fl_color( rand() );
-            fl_rectf( X, Y, X + W, Y + H );
-
-            tl->draw_child( *tl->tracks );
-            tl->draw_child( *tl->rulers );
-
-            fl_pop_clip();
-        }
-
-
-    void
-    draw ( void )
-        {
-            int X, Y, W, H;
-
-            X = tracks->x() + Fl::box_dx( tracks->child( 0 )->box() ) + 1;
-            Y = tracks->y();
-            W = tracks->w() - Fl::box_dw( tracks->child( 0 )->box() ) - 1;
-            H = tracks->h();
-
-
-/*             fl_color( FL_RED ); */
-/*             fl_rect( X, Y, X + W, Y + H ); */
-
-            if ( damage() & FL_DAMAGE_ALL )
-            {
-
-/*                 fl_push_clip( x(), y(), w() - vscroll->w(), h() - hscroll->h() ); */
-
-/*                 Fl_Group::draw(); */
-
-/*                 fl_pop_clip(); */
-
-/*                 draw_child( *hscroll ); */
-/*                 draw_child( *vscroll ); */
-
-
-                fl_push_clip( rulers->x(), rulers->y(), rulers->w(), rulers->h() );
-                draw_child( *rulers );
-                fl_pop_clip();
-
-                fl_push_clip( tracks->x(), rulers->y() + rulers->h(), tracks->w(), h() - hscroll->h() );
-                draw_child( *tracks );
-                fl_pop_clip();
-
-                draw_child( *hscroll );
-                draw_child( *vscroll );
-
-                return;
-            }
-
-            if ( damage() & FL_DAMAGE_SCROLL )
-            {
-                int dx = ts_to_x( _old_xposition ) - ts_to_x( xoffset );
-                int dy = _old_yposition - yposition;
-
-                if ( ! dy )
-                    fl_scroll( X, rulers->y(), W, rulers->h(), dx, 0, draw_clip, this );
-
-                Y = rulers->y() + rulers->h();
-                H = h() - rulers->h() - hscroll->h();
-
-                fl_scroll( X, Y, W, H, dx, dy, draw_clip, this );
-
-                _old_xposition = xoffset;
-                _old_yposition = yposition;
-
-            }
-
-            if ( damage() & FL_DAMAGE_CHILD )
-            {
-                fl_push_clip( rulers->x(), rulers->y(), rulers->w(), rulers->h() );
-                update_child( *rulers );
-                fl_pop_clip();
-
-                fl_push_clip( tracks->x(), rulers->y() + rulers->h(), tracks->w(), h() - rulers->h()  - hscroll->h() );
-                update_child( *tracks );
-                fl_pop_clip();
-
-                update_child( *hscroll );
-                update_child( *vscroll );
-            }
-
-        }
-
-
-    int handle ( int m )
-        {
-            switch ( m )
-            {
-                case FL_MOUSEWHEEL:
-                {
-                    if ( hscroll->handle( m ) )
-                        return 1;
-
-                    return vscroll->handle( m );
-                }
-                default:
-                    return Fl_Group::handle( m );
-            }
-        }
 };

Track_Widget.H

@@ -253,7 +253,7 @@ public:
 
                     redraw();
 
-                    if ( ox + X >= _track->x() )
+                    if ( timeline->ts_to_x( timeline->xoffset ) + ox + X > 0 )
                     {
                         int nx = ox + X;
 
@@ -287,8 +287,8 @@ public:
                             pos += d;
 
                         timeline->position( timeline->ts_to_x(  pos ) );
-
+                        _track->redraw();
-//                        timeline->tracks->redraw();
+//                        timeline->redraw();
                     }