Mixer: Add 'visible' property to port hints.

mixer/src/JACK_Module.H

@@ -36,7 +36,6 @@ public:
     JACK_Module ( );
     virtual ~JACK_Module ( );
 
-    bool allows_external_control ( void ) const { return false; }
     const char *name ( void ) const { return "JACK"; }
 
     bool initialize ( void );

mixer/src/Meter_Indicator_Module.C

@@ -56,6 +56,8 @@ Meter_Indicator_Module::Meter_Indicator_Module ( bool is_default )
 
     add_port( Port( this, Port::INPUT, Port::CONTROL ) );
 
+    control_input[0].hints.visible = false;
+
     dpm_pack = new Fl_Scalepack( x(), y(), w(), h() );
     dpm_pack->color( FL_BACKGROUND_COLOR );
     dpm_pack->box( FL_FLAT_BOX );

mixer/src/Module.C

@@ -246,9 +246,8 @@ Module::Port::generate_osc_path ()
 
     // /strip/STRIPNAME/MODULENAME/CONTROLNAME
 
-    if ( ! module()->allows_external_control() )
+    if ( ! p->hints.visible )
     {
-        /* Don't create signals for the default modules other than Gain */
         return NULL;
     }
 
@@ -854,7 +853,7 @@ Module::command_open_parameter_editor ( void )
     {
         _editor->show();
     }
-    else if ( ncontrol_inputs() )
+    else if ( ncontrol_inputs() && nvisible_control_inputs() )
     {
         DMESSAGE( "Opening module parameters for \"%s\"", label() );
         _editor = new Module_Parameter_Editor( this );

mixer/src/Module.H

@@ -74,8 +74,6 @@ public:
     bool is_default ( void ) const { return _is_default; }
     void is_default ( bool v ) { _is_default = v; }
 
-    virtual bool allows_external_control ( void ) const { return true; }
-
     class Port
     {
         /* char *type_names[] = { "Audio", "Control" }; */
@@ -103,7 +101,8 @@ public:
             float maximum;
             float default_value;
             int dimensions;
-            
+            bool visible;
+
             Hints ( )
                 {
                     type = LINEAR;
@@ -112,6 +111,7 @@ public:
                     maximum = 0;
                     default_value = 0.0f;
                     dimensions = 1;
+                    visible = true;
                 }
         };
 
@@ -354,6 +354,18 @@ public:
             return control_output.size();
         }
 
+    int nvisible_control_inputs ( void ) const
+        {
+            int n = 0;
+            for ( std::vector<Port>::const_iterator i = control_input.begin();
+                  i != control_input.end();
+                  i++ )
+                if ( i->hints.visible )
+                    n++;
+
+            return n;
+        }
+
     virtual bool bypass ( void ) const { return _bypass; }
     virtual void bypass ( bool v ) { _bypass = v; redraw(); }
 

mixer/src/Module_Parameter_Editor.C

@@ -153,6 +153,9 @@ Module_Parameter_Editor::make_controls ( void )
 
         Module::Port *p = &module->control_input[i];
 
+        if ( !p->hints.visible )
+            continue;
+
         if ( !strcasecmp( "Azimuth", p->name() ) &&
             180.0f == p->hints.maximum &&
             -180.0f == p->hints.minimum )