draw speaker positions in 2d panner

git-svn-id: svn://localhost/ardour2/branches/3.0@8891 d708f5d6-7413-0410-9779-e7cbd77b26cf

5 files changed, 16 insertions, 6 deletions

diff --git a/libs/ardour/ardour/panner.h b/libs/ardour/ardour/panner.h
index 7ebfe5ee03..66842e697f 100644
--- a/libs/ardour/ardour/panner.h
+++ b/libs/ardour/ardour/panner.h
@@ -48,6 +48,8 @@ class Panner : public PBD::Stateful, public PBD::ScopedConnectionList
 	Panner (boost::shared_ptr<Pannable>);
 	~Panner ();
 
+        virtual boost::shared_ptr<Speakers> get_speakers() const { return boost::shared_ptr<Speakers>(); }
+
         virtual ChanCount in() const = 0;
         virtual ChanCount out() const = 0;
 
diff --git a/libs/panners/vbap/vbap.cc b/libs/panners/vbap/vbap.cc
index c76a514eaa..fc75ae7183 100644
--- a/libs/panners/vbap/vbap.cc
+++ b/libs/panners/vbap/vbap.cc
@@ -341,3 +341,9 @@ VBAPanner::signal_position (uint32_t n) const
 
         return AngularVector();
 }
+
+boost::shared_ptr<Speakers>
+VBAPanner::get_speakers () const 
+{
+        return _speakers->parent();
+}
diff --git a/libs/panners/vbap/vbap.h b/libs/panners/vbap/vbap.h
index 183554132c..af3c1c0df2 100644
--- a/libs/panners/vbap/vbap.h
+++ b/libs/panners/vbap/vbap.h
@@ -60,6 +60,7 @@ public:
 	int set_state (const XMLNode&, int version);
 
         PBD::AngularVector signal_position (uint32_t n) const;
+        boost::shared_ptr<Speakers> get_speakers() const;
 
 private:
         struct Signal {
diff --git a/libs/panners/vbap/vbap_speakers.cc b/libs/panners/vbap/vbap_speakers.cc
index bf87791b60..a0602b3e10 100644
--- a/libs/panners/vbap/vbap_speakers.cc
+++ b/libs/panners/vbap/vbap_speakers.cc
@@ -45,9 +45,9 @@ using namespace std;
 
 VBAPSpeakers::VBAPSpeakers (boost::shared_ptr<Speakers> s)
 	: _dimension (2)
-        , parent (s)
+        , _parent (s)
 {
-	parent->Changed.connect_same_thread (speaker_connection, boost::bind (&VBAPSpeakers::update, this));
+	_parent->Changed.connect_same_thread (speaker_connection, boost::bind (&VBAPSpeakers::update, this));
         update ();
 }
 
@@ -60,7 +60,7 @@ VBAPSpeakers::update ()
 {
 	int dim = 2;
 
-        _speakers = parent->speakers();
+        _speakers = _parent->speakers();
 
 	for (vector<Speaker>::const_iterator i = _speakers.begin(); i != _speakers.end(); ++i) {
 		if ((*i).angles().ele != 0.0) {
diff --git a/libs/panners/vbap/vbap_speakers.h b/libs/panners/vbap/vbap_speakers.h
index 85cd75d085..4c28fc6489 100644
--- a/libs/panners/vbap/vbap_speakers.h
+++ b/libs/panners/vbap/vbap_speakers.h
@@ -35,23 +35,24 @@ class Speakers;
 
 class VBAPSpeakers : public boost::noncopyable {
 public:
-	typedef std::vector<double> dvector;
+	VBAPSpeakers (boost::shared_ptr<Speakers>);
 
+	typedef std::vector<double> dvector;
 	const dvector matrix (int tuple) const  { return _matrices[tuple]; }
 	int speaker_for_tuple (int tuple, int which) const { return _speaker_tuples[tuple][which]; }
 
 	int           n_tuples () const  { return _matrices.size(); }
 	int           dimension() const { return _dimension; }
 
-	VBAPSpeakers (boost::shared_ptr<Speakers>);
         uint32_t n_speakers() const { return _speakers.size(); }
+        boost::shared_ptr<Speakers> parent() const { return _parent; }
 
 	~VBAPSpeakers ();
 
 private:
 	static const double MIN_VOL_P_SIDE_LGTH = 0.01;
 	int   _dimension;  
-        boost::shared_ptr<Speakers> parent;
+        boost::shared_ptr<Speakers> _parent;
 	std::vector<Speaker> _speakers;
 	PBD::ScopedConnection speaker_connection;