Minor cleanup

Mixer_Strip.fl

@@ -14,6 +14,9 @@ decl {\#include "Fl_Scalepack.H"} {public global
 decl {\#include "Fl_Flip_Button.H"} {public global
 } 
 
+decl {\#include "Fl_Arc_Dial.H"} {public global
+} 
+
 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
@@ -24,7 +27,7 @@ widget_class Mixer_Strip {open
   }
   Fl_Box {} {
     label {<Oscilloscope>}
-    xywh {7 33 110 104} box UP_FRAME
+    xywh {7 33 110 104} box UP_FRAME hide
   }
   Fl_Group {} {open
     xywh {7 143 110 25}
@@ -83,11 +86,27 @@ widget_class Mixer_Strip {open
     }
   }
   Fl_Box {} {
-    label Pan selected
+    label Pan
     xywh {6 693 110 90} box THIN_UP_BOX labelsize 11 align 1
     class Panner
   }
   Fl_Progress {} {
     xywh {8 789 110 21} labeltype NO_LABEL
   }
+  Fl_Dial {} {
+    xywh {10 36 41 39} box OVAL_FRAME color 52 selection_color 55
+    class Fl_Arc_Dial
+  }
+  Fl_Dial {} {selected
+    xywh {10 80 41 39} box OVAL_FRAME color 52 selection_color 55
+    class Fl_Arc_Dial
+  }
+  Fl_Dial {} {
+    xywh {73 36 41 39} box OVAL_FRAME color 52 selection_color 55
+    class Fl_Arc_Dial
+  }
+  Fl_Dial {} {
+    xywh {73 80 41 39} box OVAL_FRAME color 52 selection_color 55
+    class Fl_Arc_Dial
+  }
 } 

Panner.C

@@ -105,28 +105,28 @@ Panner::event_point ( void )
     return NULL;
 }
 
-#if 0
 /* translate angle /a/ into x/y coords and place the result in /X/ and /Y/ */
-void
-Panner::angle_to_axes ( float a, float *X, float *Y )
+Panner::Point
+Panner::angle_to_axes ( float a )
 {
+    Point p;
 
-    float A;
-//    int X, Y;
+    a -= 90;
+    a = 360 - a;
 
-    A = a * ( M_PI / 180 );
+    double A;
 
-    float r = tw / 2;
+    A = a * ( M_PI / 180 );
 
-    X = r * cos( A );
-    Y = -r * sin( A );
+    // const float r = tw / 2;
 
-/*     fl_push_matrix(); */
+    const double  r = 1.0f;
 
-/*     fl_translate( (tx + (tw / 2)) + X, (ty + (th / 2)) + Y ); */
+    p.x = r * cos( A );
+    p.y = -r * sin( A );
 
+    return p;
 }
-#endif
 
 void
 Panner::draw ( void )
@@ -161,9 +161,13 @@ Panner::draw ( void )
             a -= 90;
             a = 360 - a;
 
-/*             fl_color( FL_WHITE  ); */
+/* /\*             fl_color( FL_WHITE  ); *\/ */
+/*             fl_line_style( FL_SOLID, 10 ); */
+/*             fl_arc( tx, ty, tw, th, a - 20, a + 20 ); */
+/*             fl_line_style( FL_SOLID, 0 ); */
 
-/*             fl_arc( tx, ty, tw, th, a - 3, a + 3 ); */
+            Point p = angle_to_axes( a );
+//            printf( "%d: %f, %f\n", i, p.x, p.y );
 
             {
                 float A;
@@ -245,6 +249,8 @@ Panner::handle ( int m )
             drag->x = (float)(X / (w() / 2)) - 1.0f;
             drag->y = (float)(Y / (h() / 2)) - 1.0f;
 
+            printf( "%f\n", drag->distance( angle_to_axes( _configs[ _outs ][ 0 ] ) ) );
+
             redraw();
 
             return 1;

Panner.H

@@ -23,6 +23,8 @@
 #include <FL/fl_draw.H>
 #include <FL/Fl.H>
 
+#include <math.h>
+
 #include <vector>
 using namespace std;
 
@@ -36,6 +38,14 @@ class Panner : public Fl_Widget
 
         Point ( ) : x( 0.0f ), y( 0.0f ) { }
         Point ( float X, float Y ) : x( X ), y( Y ) { }
+
+
+        /* return the distance between the point and that referenced by /p/ */
+        float
+        distance ( const Point &p )
+            {
+                return sqrt( pow( x - p.x, 2 ) + pow( y - p.y, 2 ) );
+            }
     };
 
 
@@ -59,6 +69,7 @@ class Panner : public Fl_Widget
         }
 
     Point * event_point ( void );
+    Point angle_to_axes ( float a );
 
 public: