rollback to 3428, before the mysterious removal of libs/* at 3431/3432

git-svn-id: svn://localhost/ardour2/branches/3.0@3435 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 93 insertions, 0 deletions

diff --git a/libs/ardour/ardour/control_protocol_manager.h b/libs/ardour/ardour/control_protocol_manager.h
new file mode 100644
index 0000000000..c61513e117
--- /dev/null
+++ b/libs/ardour/ardour/control_protocol_manager.h
@@ -0,0 +1,93 @@
+/*
+    Copyright (C) 2000-2007 Paul Davis 
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#ifndef ardour_control_protocol_manager_h
+#define ardour_control_protocol_manager_h
+
+#include <string>
+#include <list>
+
+#include <sigc++/sigc++.h>
+
+#include <glibmm/thread.h>
+
+#include <pbd/stateful.h> 
+
+namespace ARDOUR {
+
+class ControlProtocol;
+class ControlProtocolDescriptor;
+class Session;
+
+struct ControlProtocolInfo {
+    ControlProtocolDescriptor* descriptor;
+    ControlProtocol* protocol;
+    std::string name;
+    std::string path;
+    bool requested;
+    bool mandatory;
+    bool supports_feedback;
+    XMLNode* state;
+
+    ControlProtocolInfo() : descriptor (0), protocol (0), state (0) {}
+    ~ControlProtocolInfo() { if (state) { delete state; } }
+};
+
+ class ControlProtocolManager : public sigc::trackable, public PBD::Stateful
+{
+  public:
+	ControlProtocolManager ();
+	~ControlProtocolManager ();
+
+	static ControlProtocolManager& instance() { return *_instance; }
+
+	void set_session (Session&);
+	void discover_control_protocols ();
+	void foreach_known_protocol (sigc::slot<void,const ControlProtocolInfo*>);
+	void load_mandatory_protocols ();
+
+	ControlProtocol* instantiate (ControlProtocolInfo&);
+	int              teardown (ControlProtocolInfo&);
+
+	std::list<ControlProtocolInfo*> control_protocol_info;
+
+	static const std::string state_node_name;
+
+	void set_protocol_states (const XMLNode&);
+
+	int set_state (const XMLNode&);
+	XMLNode& get_state (void);
+
+  private:
+	static ControlProtocolManager* _instance;
+
+	Session* _session;
+	Glib::Mutex protocols_lock;
+	std::list<ControlProtocol*>    control_protocols;
+
+	void drop_session ();
+
+	int control_protocol_discover (std::string path);
+	ControlProtocolDescriptor* get_descriptor (std::string path);
+	ControlProtocolInfo* cpi_by_name (std::string);
+};
+
+} // namespace
+
+#endif // ardour_control_protocol_manager_h