Make measure line drawing optional.

Timeline/Clock.H

@@ -219,6 +219,10 @@ public:
                 type( t );
 
                 redraw();
+
+                return 0;
             }
+
+            return 0;
         }
 };

Timeline/TLE.fl

@@ -103,7 +103,7 @@ Loggable::compact();}
           }
           MenuItem {} {
             label Load
-            callback {((Fl_Menu_Settings*)menubar)->load( options_menu, "foo.state" );} selected
+            callback {((Fl_Menu_Settings*)menubar)->load( options_menu, "foo.state" );}
             xywh {10 10 40 25}
           }
         }
@@ -196,6 +196,18 @@ Loggable::compact();}
             label {&Display} open
             xywh {0 0 74 25}
           } {
+            Submenu {} {
+              label {&Timeline} open
+              xywh {0 0 74 25}
+            } {
+              MenuItem {} {
+                label {&Measure lines}
+                callback {Timeline::draw_with_measure_lines = menu_picked_value( o );
+
+timeline->redraw();} selected
+                xywh {0 0 40 25} type Toggle value 1
+              }
+            }
             Submenu {} {
               label {&Waveforms} open
               xywh {0 0 74 25}

Timeline/Timeline.C

@@ -31,6 +31,8 @@
 
 #include "Track.H"
 
+bool Timeline::draw_with_measure_lines = true;
+
 const float UPDATE_FREQ = 0.02f;
 
 
@@ -83,8 +85,6 @@ Timeline::Timeline ( int X, int Y, int W, int H, const char* L ) : Fl_Overlay_Wi
     box( FL_FLAT_BOX );
     xoffset = 0;
 
-    _enable_measure_lines = true;
-
     X = Y = 0;
 
     {
@@ -256,7 +256,7 @@ Timeline::nearest_line ( int ix )
 void
 Timeline::draw_measure ( int X, int Y, int W, int H, Fl_Color color, bool BBT )
 {
-    if ( ! _enable_measure_lines )
+    if ( ! draw_with_measure_lines )
         return;
 
 //    fl_line_style( FL_DASH, 2 );

Timeline/Timeline.H

@@ -61,8 +61,6 @@ class Track;
 #define redraw_overlay()
 #endif
 
-
-
 struct Rectangle
 {
     int x;
@@ -88,8 +86,6 @@ class Timeline : public Fl_Overlay_Window, public RWLock
 
     Rectangle _selection;
 
-    bool _enable_measure_lines;
-
     enum snap_flags_e {
         SNAP_TO_REGION,
         SNAP_TO_BAR,
@@ -116,6 +112,8 @@ class Timeline : public Fl_Overlay_Window, public RWLock
 
 public:
 
+    static bool draw_with_measure_lines;
+
     Tempo_Sequence *tempo_track;
     Time_Sequence  *time_track;
     Ruler_Sequence *ruler_track;