Add Editor/UI Lua Scripting and Action/Callback Script

1 files changed, 132 insertions, 0 deletions

diff --git a/gtk2_ardour/luainstance.h b/gtk2_ardour/luainstance.h
new file mode 100644
index 0000000000..7bb572323e
--- /dev/null
+++ b/gtk2_ardour/luainstance.h
@@ -0,0 +1,132 @@
+#ifndef __gtkardour_luainstance_h__
+#define __gtkardour_luainstance_h__
+
+#include <bitset>
+
+#include "pbd/id.h"
+#include "pbd/signals.h"
+#include "pbd/xml++.h"
+
+#include "ardour/luascripting.h"
+#include "ardour/luabindings.h"
+#include "ardour/session_handle.h"
+
+#include "lua/luastate.h"
+#include "LuaBridge/LuaBridge.h"
+
+#include "luasignal.h"
+
+typedef std::bitset<LuaSignal::LAST_SIGNAL> ActionHook;
+
+class LuaCallback : public ARDOUR::SessionHandlePtr, public sigc::trackable
+{
+public:
+	LuaCallback (ARDOUR::Session*, const std::string&, const std::string&, const ActionHook&, const ARDOUR::LuaScriptParamList&);
+	LuaCallback (ARDOUR::Session*, XMLNode & node);
+	~LuaCallback ();
+
+	XMLNode& get_state (void);
+	void set_session (ARDOUR::Session *);
+
+	const PBD::ID& id () const { return _id; }
+	const std::string& name () const { return _name; }
+	ActionHook signals () const { return _signals; }
+	bool lua_slot (std::string&, std::string&, ActionHook&, ARDOUR::LuaScriptParamList&);
+	PBD::Signal0<void> drop_callback;
+
+protected:
+	void session_going_away ();
+
+private:
+	LuaState lua;
+
+	PBD::ID _id;
+	std::string _name;
+	ActionHook _signals;
+
+	void reconnect ();
+	template <class T> void reconnect_object (T);
+	void init ();
+
+	luabridge::LuaRef * _lua_add;
+	luabridge::LuaRef * _lua_get;
+	luabridge::LuaRef * _lua_call;
+	luabridge::LuaRef * _lua_save;
+	luabridge::LuaRef * _lua_load;
+
+	PBD::ScopedConnectionList _connections;
+
+	template <typename T, typename S> void connect_0 (enum LuaSignal::LuaSignal, T, S*);
+	template <typename T> void proxy_0 (enum LuaSignal::LuaSignal, T);
+
+	template <typename T, typename C1> void connect_1 (enum LuaSignal::LuaSignal, T, PBD::Signal1<void, C1>*);
+	template <typename T, typename C1> void proxy_1 (enum LuaSignal::LuaSignal, T, C1);
+
+	template <typename T, typename C1, typename C2> void connect_2 (enum LuaSignal::LuaSignal, T, PBD::Signal2<void, C1, C2>*);
+	template <typename T, typename C1, typename C2> void proxy_2 (enum LuaSignal::LuaSignal, T, C1, C2);
+};
+
+typedef boost::shared_ptr<LuaCallback> LuaCallbackPtr;
+typedef std::map<PBD::ID, LuaCallbackPtr> LuaCallbackMap;
+
+
+
+class LuaInstance : public PBD::ScopedConnectionList, public ARDOUR::SessionHandlePtr
+{
+public:
+	static LuaInstance* instance();
+	~LuaInstance();
+
+	static void register_classes (lua_State* L);
+	static void register_hooks (lua_State* L);
+
+	void set_session (ARDOUR::Session* s);
+
+	int set_state (const XMLNode&);
+	XMLNode& get_action_state (void);
+	XMLNode& get_hook_state (void);
+
+	bool interactive_add (ARDOUR::LuaScriptInfo::ScriptType, int);
+
+	/* actions */
+	void call_action (const int);
+
+	bool set_lua_action (const int, const std::string&, const std::string&, const ARDOUR::LuaScriptParamList&);
+	bool remove_lua_action (const int);
+	bool lua_action_name (const int, std::string&);
+	std::vector<std::string> lua_action_names ();
+	bool lua_action (const int, std::string&, std::string&, ARDOUR::LuaScriptParamList&);
+	sigc::signal<void,int,std::string> ActionChanged;
+
+	/* callbacks */
+	bool register_lua_slot (const std::string&, const std::string&, const ARDOUR::LuaScriptParamList&);
+	bool unregister_lua_slot (const PBD::ID&);
+	std::vector<PBD::ID> lua_slots () const;
+	bool lua_slot_name (const PBD::ID&, std::string&) const;
+	std::vector<std::string> lua_slot_names () const;
+	bool lua_slot (const PBD::ID&, std::string&, std::string&, ActionHook&, ARDOUR::LuaScriptParamList&);
+	sigc::signal<void,PBD::ID,std::string,ActionHook> SlotChanged;
+
+private:
+	LuaInstance();
+	static LuaInstance* _instance;
+
+	void init ();
+	void session_going_away ();
+
+	LuaState lua;
+
+	luabridge::LuaRef * _lua_call_action;
+	luabridge::LuaRef * _lua_add_action;
+	luabridge::LuaRef * _lua_del_action;
+	luabridge::LuaRef * _lua_get_action;
+
+	luabridge::LuaRef * _lua_load;
+	luabridge::LuaRef * _lua_save;
+	luabridge::LuaRef * _lua_clear;
+
+	LuaCallbackMap _callbacks;
+	PBD::ScopedConnectionList _slotcon;
+};
+
+#endif