switch to using boost::signals2 instead of sigc++, at least for libardour. not finished yet, but compiles, loads sessions, records and can close a session without a crash

git-svn-id: svn://localhost/ardour2/branches/3.0@6372 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 10 insertions, 8 deletions

diff --git a/libs/ardour/ardour/export_formats.h b/libs/ardour/ardour/export_formats.h
index 3312e9abd6..3ef207097b 100644
--- a/libs/ardour/ardour/export_formats.h
+++ b/libs/ardour/ardour/export_formats.h
@@ -21,12 +21,14 @@
 #ifndef __ardour_export_formats_h__
 #define __ardour_export_formats_h__
 
-#include "ardour/export_format_base.h"
-#include "ardour/export_format_compatibility.h"
-
 #include <list>
 #include <boost/weak_ptr.hpp>
+
 #include "pbd/failed_constructor.h"
+#include "pbd/scoped_connections.h"
+
+#include "ardour/export_format_base.h"
+#include "ardour/export_format_compatibility.h"
 
 namespace ARDOUR
 {
@@ -84,7 +86,7 @@ class ExportFormat : public ExportFormatBase, public ExportFormatBase::Selectabl
 };
 
 /// Class to be inherited by export formats that have a selectable sample format
-class HasSampleFormat {
+class HasSampleFormat : public PBD::ScopedConnectionList {
   public:
 
 	class SampleFormatState : public ExportFormatBase::SelectableCompatible {
@@ -126,11 +128,11 @@ class HasSampleFormat {
 
 	/* Proxies for signals from sample formats and dither types */
 
-	sigc::signal<void, bool, WeakSampleFormatPtr> SampleFormatSelectChanged;
-	sigc::signal<void, bool, WeakSampleFormatPtr> SampleFormatCompatibleChanged;
+	boost::signals2::signal<void(bool, WeakSampleFormatPtr)> SampleFormatSelectChanged;
+	boost::signals2::signal<void(bool, WeakSampleFormatPtr)> SampleFormatCompatibleChanged;
 
-	sigc::signal<void, bool, WeakDitherTypePtr> DitherTypeSelectChanged;
-	sigc::signal<void, bool, WeakDitherTypePtr> DitherTypeCompatibleChanged;
+	boost::signals2::signal<void(bool, WeakDitherTypePtr)> DitherTypeSelectChanged;
+	boost::signals2::signal<void(bool, WeakDitherTypePtr)> DitherTypeCompatibleChanged;
 
 	static std::string get_sample_format_name (ExportFormatBase::SampleFormat format);