Mixer: Teach modules how to serializer their input port settings.

Mixer/Chain.C

@@ -487,6 +487,14 @@ Chain::build_process_queue ( void )
             DMESSAGE( "\t%s -->", (*i)->name() );
         else if ( m->control_input.size() )
             DMESSAGE( "\t%s <--", (*i)->name() );
+
+        {
+            char *s = m->describe_inputs();
+
+            DMESSAGE( "(%s)", s );
+
+            delete[] s;
+        }
     }
 }
 

Mixer/Meter_Indicator_Module.H

@@ -44,8 +44,8 @@ public:
 
     const char *name ( void ) const { return "Meter Indicator"; }
 
-    int can_support_inputs ( int n ) { return 0; }
-    bool configure_inputs ( int n ) { return false; }
+    int can_support_inputs ( int ) { return 0; }
+    bool configure_inputs ( int ) { return false; }
 
     void pad ( bool v ) { _pad = v; }
 

Mixer/Module.C

@@ -22,6 +22,7 @@
 
 #include <stdlib.h>
 #include <string.h>
+#include <stdio.h>
 
 #include "Module_Parameter_Editor.H"
 
@@ -46,6 +47,30 @@ Module::~Module ( )
 
 
 
+/* return a string serializing this module's parameter settings.  The
+   format is 1.0:2.0:... Where 1.0 is the value of the first control
+   input, 2.0 is the value of the second control input etc.
+ */
+char *
+Module::describe_inputs ( void ) const
+{
+    char *s = new char[1024];
+    s[0] = 0;
+    char *sp = s;
+
+    if ( control_input.size() )
+    {
+    for ( unsigned int i = 0; i < control_input.size(); ++i )
+        sp += snprintf( sp, 1024 - (sp - s),"%f:", control_input[i].control_value() );
+
+    *(sp - 1) = '\0';
+    }
+
+    return s;
+}
+
+
+
 void
 Module::draw_box ( void )
 {

Mixer/Module.H

@@ -289,6 +289,8 @@ public:
     Chain *chain ( void ) const { return _chain; }
     void chain ( Chain * v ) { _chain = v; }
 
+    char *describe_inputs ( void ) const;
+
     virtual bool initialize ( void ) { return true; }
 
     /* for the given number of inputs, return how many outputs this
@@ -312,6 +314,8 @@ public:
 
     virtual void handle_port_connection_change () {}
 
+
+
 protected:
 
     void draw_connections ( void );