Mixer: Fix glitch in redrawing of meter scales when scrolling.

mixer/src/DPM.C

@@ -89,14 +89,13 @@ DPM::DPM ( int X, int Y, int W, int H, const char *L ) :
 const int marks [] = { -70, -50, -40, -30, -20, -10, -3, 0, 4 };
 
 void
-DPM::draw_label ( void )
+DPM::public_draw_label ( int X, int Y, int W, int H )
 {
+    fl_push_clip(X,Y,W,H);
+    fl_rectf( X,Y,W,H, FL_BACKGROUND_COLOR);
 	
-    /* dirty hack */
-    if ( parent()->child( 0 ) == this )
-    {
     fl_font( FL_TIMES, 8 );
-        fl_color( FL_FOREGROUND_COLOR );
+    fl_color( active_r() ? FL_FOREGROUND_COLOR : fl_inactive( FL_FOREGROUND_COLOR ) );
     /* draw marks */
     char pat[5];
     if ( type() == FL_HORIZONTAL )
@@ -107,7 +106,7 @@ DPM::draw_label ( void )
 
 	    int v = w() *  deflection( (float)marks[ i ] );
 
-                fl_draw( pat, x() + v, (y() + h() + 8), 19, 8, (Fl_Align) (FL_ALIGN_RIGHT | FL_ALIGN_TOP) );
+	    fl_draw( pat, X + v, (Y + H + 8), W, 8, (Fl_Align) (FL_ALIGN_RIGHT | FL_ALIGN_TOP) );
 	}
 
     }
@@ -119,10 +118,11 @@ DPM::draw_label ( void )
 
 	    int v = h() *  deflection( (float)marks[ i ] );
 
-                fl_draw( pat, x() - 20, (y() + h() - 4) - v, 19, 8, (Fl_Align) (FL_ALIGN_RIGHT | FL_ALIGN_TOP) );
+	    fl_draw( pat, X, (Y + H - 4) - v, W, 8, (Fl_Align) (FL_ALIGN_RIGHT | FL_ALIGN_TOP) );
-            }
 	}
     }
+
+    fl_pop_clip();
 }
 
 void
@@ -166,9 +166,6 @@ DPM::draw ( void )
     int X,Y,W,H;
     bbox(X,Y,W,H);
     
-    if ( 0 == fl_not_clipped(X,Y,W,H ) )
-	return;
-    
     int v = pos( value() );
     int pv = pos( peak() );
     
@@ -179,9 +176,12 @@ DPM::draw ( void )
     /* int bw = _pixels_per_segment; */
     int bw = W / _segments;
     
+    if ( 0 == fl_not_clipped(X,Y,W,H ) )
+	return;
+
     if ( damage() & FL_DAMAGE_ALL )
     {
-        draw_label();
+        /* draw_label(); */
 
         draw_box( box(), X, Y, W, H, color() );
     }

mixer/src/DPM.H

@@ -56,14 +56,15 @@ class DPM : public Meter
     
 protected:
 
-    virtual void draw_label ( void );
     virtual void draw ( void );
     virtual void resize ( int, int, int, int );
+    /* virtual void draw_label ( void ); */
 
     void bbox ( int &X, int &Y, int &W, int &H );
 
 public:
 
+    void public_draw_label ( int X, int Y, int W, int H );
     
     DPM ( int X, int Y, int W, int H,  const char *L = 0 );
 

mixer/src/Meter_Indicator_Module.C

@@ -57,7 +57,13 @@ Meter_Indicator_Module::Meter_Indicator_Module ( bool is_default )
 
     control_input[0].hints.visible = false;
 
-    dpm_pack = new Fl_Scalepack( x() + 2, y() + 2, w() - 4, h() - 4 );
+    /* dpm_pack = new Fl_Scalepack( x() + 2, y() + 2, w() - 4, h() - 4 ); */
+    /* /\* dpm_pack->color( FL_BACKGROUND_COLOR ); *\/ */
+    /* dpm_pack->box( FL_NO_BOX ); */
+    /* dpm_pack->type( FL_HORIZONTAL ); */
+    /* dpm_pack->spacing(1); */
+
+        dpm_pack = new Fl_Scalepack( x() + 20 + 2, y() + 2, w() - 20 - 4, h() - 4 );
     /* dpm_pack->color( FL_BACKGROUND_COLOR ); */
     dpm_pack->box( FL_NO_BOX );
     dpm_pack->type( FL_HORIZONTAL );
@@ -90,16 +96,26 @@ Meter_Indicator_Module::~Meter_Indicator_Module ( )
 void Meter_Indicator_Module::resize ( int X, int Y, int W, int H )
 {
     Fl_Group::resize(X,Y,W,H);
-    dpm_pack->resize( x() + DX, y() + DX, w() - DX*2, h() - DX*2);
+    dpm_pack->resize( x() + 20 + DX , y() + DX, w() - 20 - DX*2, h() - DX*2);
 }
 
 void
 Meter_Indicator_Module::draw ( void )
 {
-    /* draw_box(x(),y(),w(),h()); */
+    /* if ( damage() & FL_DAMAGE_ALL ) */
 
+    /* draw_box(x(),y(),w(),h()); */
     Fl_Group::draw();
 
+    if ( damage() & FL_DAMAGE_ALL )
+    {
+	/* need to trigger redraw of exterior label */
+	if ( dpm_pack->children() )
+	{
+	    ((DPM*)dpm_pack->child(0))->public_draw_label( x(), y(), 19, h() );
+	}
+    }
+    
     fl_rect( x(), y(), w(), h(), fl_darker(fl_darker(FL_BACKGROUND_COLOR)));
 }
 

mixer/src/Mixer_Strip.C

@@ -675,7 +675,7 @@ Mixer_Strip::init ( )
                 { Fl_Scalepack* o = new Fl_Scalepack(2, 135, 105, 311 );
                     // o->box( FL_BORDER_BOX );
 //                        o->color( FL_RED );
-                    o->spacing( 20 );
+                    o->spacing( 0 );
                     o->type( Fl_Scalepack::HORIZONTAL );
                     { Controller_Module *o = gain_controller = new Controller_Module( true );
                         o->horizontal(false);