X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fardour%2Fardour%2Fpanner.h;h=1838fb5f56b807c97227b6fa767f291af1b8b25b;hb=71a90399fe8561310b848fbfb8d28a65a395a6c1;hp=4c585f8b31917dfb3fa16a4faa0379c0d9c64dbf;hpb=0b958b7f15decdce3ebb8234504014768ac12bba;p=ardour.git

diff --git a/libs/ardour/ardour/panner.h b/libs/ardour/ardour/panner.h
index 4c585f8b31..1838fb5f56 100644
--- a/libs/ardour/ardour/panner.h
+++ b/libs/ardour/ardour/panner.h
@@ -30,10 +30,23 @@
 #include "pbd/signals.h"
 #include "pbd/stateful.h"
 
+#include "ardour/libardour_visibility.h"
 #include "ardour/types.h"
 #include "ardour/automation_control.h"
 #include "ardour/automatable.h"
 
+
+/* This section is for actual panners to use. They will include this file,
+ * declare ARDOURPANNER_DLL_EXPORTS during compilation, and ... voila.
+ */
+
+#ifdef ARDOURPANNER_DLL_EXPORTS // defined if we are building a panner implementation
+    #define ARDOURPANNER_API LIBARDOUR_DLL_EXPORT
+  #else
+    #define ARDOURPANNER_API LIBARDOUR_DLL_IMPORT
+  #endif
+#define ARDOURPANNER_LOCAL LIBARDOUR_DLL_LOCAL
+
 namespace ARDOUR {
 
 class Session;
@@ -42,7 +55,7 @@ class BufferSet;
 class AudioBuffer;
 class Speakers;
 
-class Panner : public PBD::Stateful, public PBD::ScopedConnectionList
+class LIBARDOUR_API Panner : public PBD::Stateful, public PBD::ScopedConnectionList
 {
 public:
 	Panner (boost::shared_ptr<Pannable>);
@@ -71,6 +84,10 @@ public:
 	virtual bool clamp_width (double&) { return true; }
 	virtual bool clamp_elevation (double&) { return true; }
 
+	virtual std::pair<double, double> position_range () const { return std::make_pair (-DBL_MAX, DBL_MAX); }
+	virtual std::pair<double, double> width_range () const { return std::make_pair (-DBL_MAX, DBL_MAX); }
+	virtual std::pair<double, double> elevation_range () const { return std::make_pair (-DBL_MAX, DBL_MAX); }
+
 	virtual void set_position (double) { }
 	virtual void set_width (double) { }
 	virtual void set_elevation (double) { }
@@ -83,6 +100,9 @@ public:
 
 	virtual void reset () = 0;
 
+	/* azimut, width or elevation updated -> recalc signal_position ->  emit Changed */
+	PBD::Signal0<void> SignalPositionChanged;
+
 	void      set_automation_state (AutoState);
 	AutoState automation_state() const;
 	void      set_automation_style (AutoStyle);
@@ -139,7 +159,7 @@ public:
 
 	int set_state (const XMLNode&, int version);
 	XMLNode& get_state ();
-	
+
 	boost::shared_ptr<Pannable> pannable() const { return _pannable; }
 
 	static bool equivalent (pan_t a, pan_t b) {
@@ -168,10 +188,13 @@ protected:
 } // namespace
 
 extern "C" {
-struct PanPluginDescriptor {
+struct LIBARDOUR_API PanPluginDescriptor {
 	std::string name;
+	std::string panner_uri;
+	std::string gui_uri;
 	int32_t in;
 	int32_t out;
+	uint32_t priority;
 	ARDOUR::Panner* (*factory)(boost::shared_ptr<ARDOUR::Pannable>, boost::shared_ptr<ARDOUR::Speakers>);
 };
 }