GenericUI: subscribe to property changes before querying values

[ardour.git] / gtk2_ardour / luainstance.h

diff --git a/gtk2_ardour/luainstance.h b/gtk2_ardour/luainstance.h
index 42917320974a5608efbd226bb5433e1b3a2f3e31..60bbca7c88335bd2221d8bff63d169eb697cc3f3 100644 (file)
--- a/gtk2_ardour/luainstance.h
+++ b/gtk2_ardour/luainstance.h
@@ -3,6 +3,8 @@
 
 #include <bitset>
 
+#include <cairo.h>
+
 #include "pbd/id.h"
 #include "pbd/signals.h"
 #include "pbd/xml++.h"
@@ -79,11 +81,15 @@ class LuaInstance : public PBD::ScopedConnectionList, public ARDOUR::SessionHand
 {
 public:
        static LuaInstance* instance();
+       static void destroy_instance();
        ~LuaInstance();
 
        static void register_classes (lua_State* L);
        static void register_hooks (lua_State* L);
        static void bind_cairo (lua_State* L);
+       static void bind_dialog (lua_State* L);
+
+       static void render_action_icon (cairo_t* cr, int w, int h, uint32_t c, void* i);
 
        void set_session (ARDOUR::Session* s);
 
@@ -95,12 +101,14 @@ public:
 
        /* actions */
        void call_action (const int);
+       void render_icon (int i, cairo_t*, int, int, uint32_t);
 
        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&);
+       bool lua_action_has_icon (const int);
        sigc::signal<void,int,std::string> ActionChanged;
 
        /* callbacks */
@@ -113,6 +121,7 @@ public:
        sigc::signal<void,PBD::ID,std::string,ActionHook> SlotChanged;
 
        static PBD::Signal0<void> LuaTimerDS; // deci-seconds (Timer every .1s)
+       static PBD::Signal0<void> SetSession; // emitted when a session is loaded
 
 private:
        LuaInstance();
@@ -124,6 +133,7 @@ private:
        LuaState lua;
 
        luabridge::LuaRef * _lua_call_action;
+       luabridge::LuaRef * _lua_render_icon;
        luabridge::LuaRef * _lua_add_action;
        luabridge::LuaRef * _lua_del_action;
        luabridge::LuaRef * _lua_get_action;