Work on VU meter and mixer strip.

Mixer_Strip.fl

@@ -0,0 +1,56 @@
+# data file for the Fltk User Interface Designer (fluid)
+version 1.0108 
+header_name {.H} 
+code_name {.C}
+decl {\#include "VU_Meter.H"} {} 
+
+widget_class Mixer_Strip {open
+  xywh {1051 42 124 816} type Double box UP_FRAME color 32 selection_color 63 resizable
+  code0 {size( 120, h() );} visible
+} {
+  Fl_Box {} {
+    label {<track name>}
+    xywh {7 7 110 19} box RSHADOW_BOX color 95 labelcolor 32
+  }
+  Fl_Box {} {
+    label {<Oscilloscope>}
+    xywh {7 33 110 104} box UP_FRAME
+  }
+  Fl_Group {} {open
+    xywh {7 143 110 25}
+  } {
+    Fl_Button {} {
+      label {@circle}
+      private xywh {7 143 35 25} type Toggle
+    }
+    Fl_Button {} {
+      label m
+      private xywh {46 143 32 25} type Toggle
+    }
+    Fl_Button {} {
+      label s
+      private xywh {82 143 35 25} type Toggle
+    }
+  }
+  Fl_Group {} {open
+    xywh {13 178 104 509} resizable
+  } {
+    Fl_Value_Slider {} {
+      label Gain
+      callback {// parent()->parent()->damage( FL_DAMAGE_ALL, x(), y(), w(), h() );}
+      xywh {14 195 33 471} type {Vert Knob} color 32 selection_color 1 minimum 1.5 maximum 0 step 0.01 value 1 textsize 14
+    }
+    Fl_Box {} {
+      label VU selected
+      xywh {57 193 55 484} box ROUNDED_BOX selection_color 88
+      class VU_Meter
+    }
+  }
+  Fl_Box {} {
+    label {<Panner>}
+    xywh {6 693 110 90} box UP_FRAME
+  }
+  Fl_Progress {} {
+    xywh {8 789 110 21} labeltype NO_LABEL
+  }
+} 

VU_Meter.C

@@ -36,21 +36,21 @@ VU_Meter::VU_Meter ( int X, int Y, int W, int H, const char *L ) :
 
     dim( 0.80f );
 
-    color( FL_GREEN );
+    min_color( FL_GREEN );
-    selection_color( FL_RED );
+    max_color( FL_RED );
 
     box( FL_ROUNDED_BOX );
 
     minimum( 0.0f );
     maximum( 1.0f );
 
-    value( 0.4f );
+    value( 0.0f );
 }
 
 void
 VU_Meter::draw ( void )
 {
-    draw_box( FL_FLAT_BOX, x(), y(), w(), h(), FL_BLACK );
+//    draw_box( FL_FLAT_BOX, x(), y(), w(), h(), color() );
 
     int v = (value() / maximum()) * _divisions;
 
@@ -59,9 +59,10 @@ VU_Meter::draw ( void )
 
     for ( int p = _divisions; p > 0; p-- )
     {
-        Fl_Color c = fl_color_average( selection_color(), color(), (float)p / _divisions );
+        Fl_Color c = fl_color_average( _max_color, _min_color, (float)p / _divisions );
 
         if ( p > v )
+//            c = fl_color_average( color(), c, _dim );
             c = fl_color_average( FL_BLACK, c, _dim );
 
         if ( ! active_r() )

VU_Meter.H

@@ -32,6 +32,9 @@ class VU_Meter : public Fl_Widget
     int _divisions;
     float _dim;
 
+    Fl_Color _min_color;
+    Fl_Color _max_color;
+
 protected:
 
     virtual void draw ( void );
@@ -59,4 +62,10 @@ public:
     float dim ( void ) const { return _dim; }
     void dim ( float v ) { _dim = v; redraw(); }
 
+    Fl_Color min_color ( void ) const { return _min_color; }
+    void min_color ( Fl_Color v ) { _min_color = v; }
+
+    Fl_Color max_color ( void ) const { return _max_color; }
+    void max_color ( Fl_Color v ) { _max_color = v; }
+
 };