Mixer: Fix copy and paste of spatializer module.

mixer/src/Chain.C

@@ -551,15 +551,15 @@ Chain::insert ( Module *m, Module *n )
     {
         if ( modules() == 0 && n->can_support_inputs( 0 ) >= 0 )
         {
+            n->chain( this );
             n->configure_inputs( 0 );
             modules_pack->add( n );
-            n->chain( this );
         }
         else if ( n->can_support_inputs( module( modules() - 1 )->noutputs() ) >= 0 )
         {
+            n->chain( this );
             n->configure_inputs( module( modules() - 1 )->noutputs() );
             modules_pack->add( n );
-            n->chain( this );
         }
         else
         {
@@ -572,6 +572,8 @@ Chain::insert ( Module *m, Module *n )
     {
         int i = modules_pack->find( m );
 
+        n->chain( this );
+
         if ( 0 == i )
         {
             /* inserting to head of chain*/
@@ -596,7 +598,6 @@ Chain::insert ( Module *m, Module *n )
         }
 
         modules_pack->insert( *n, i );
-        n->chain( this );
     }
 
 

mixer/src/Module.C

@@ -160,7 +160,7 @@ Module::get ( Log_Entry &e ) const
     e.add( ":active", ! bypass() );
 }
 
-void
+bool
 Module::copy ( void ) const
 {
     Module *m = clone_empty();
@@ -168,6 +168,7 @@ Module::copy ( void ) const
     if ( ! m )
     {
         DMESSAGE( "Module \"%s\" doesn't support cloning", name() );
+        return false;
     }
 
     Log_Entry *ne = new Log_Entry();
@@ -196,6 +197,8 @@ Module::copy ( void ) const
     }
 
     _copied_module_settings = ne->print();
+
+    return true;
 }
 
 void
@@ -840,10 +843,11 @@ Module::menu_cb ( const Fl_Menu_ *m )
         }
     else if ( ! strcmp( picked, "Cut" ) )
     {
-        copy();
-
-        chain()->remove( this );
-        Fl::delete_widget( this );
+        if ( copy() )
+        {
+            chain()->remove( this );
+            Fl::delete_widget( this );
+        }
     }
     else if ( ! strcmp( picked, "Copy" ) )
     {

mixer/src/Module.H

@@ -63,7 +63,7 @@ class Module : public Fl_Group, public Loggable {
     static void menu_cb ( Fl_Widget *w, void *v );
     Fl_Menu_Button & menu ( void ) const;
 
-    void copy ( void ) const;
+    bool copy ( void ) const;
     void paste_before ( void );
 
 protected:

mixer/src/Spatializer_Module.H

@@ -49,6 +49,8 @@ public:
     virtual ~Spatializer_Module ( );
 
     LOG_CREATE_FUNC( Spatializer_Module );
+
+    MODULE_CLONE_FUNC(Spatializer_Module);
     
     virtual void handle_sample_rate_change ( nframes_t n );