Crazy Eddie's GUI System  0.8.4
Functor.h
00001 /***********************************************************************
00002     created:  Thu Jan 26 2006
00003     author:   Tomas Lindquist Olsen <tomas@famolsen.dk>
00004 
00005     purpose:  Defines interface for LuaFunctor class
00006 *************************************************************************/
00007 /***************************************************************************
00008  *   Copyright (C) 2004 - 2008 Paul D Turner & The CEGUI Development Team
00009  *
00010  *   Permission is hereby granted, free of charge, to any person obtaining
00011  *   a copy of this software and associated documentation files (the
00012  *   "Software"), to deal in the Software without restriction, including
00013  *   without limitation the rights to use, copy, modify, merge, publish,
00014  *   distribute, sublicense, and/or sell copies of the Software, and to
00015  *   permit persons to whom the Software is furnished to do so, subject to
00016  *   the following conditions:
00017  *
00018  *   The above copyright notice and this permission notice shall be
00019  *   included in all copies or substantial portions of the Software.
00020  *
00021  *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
00022  *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
00023  *   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
00024  *   IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
00025  *   OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
00026  *   ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
00027  *   OTHER DEALINGS IN THE SOFTWARE.
00028  ***************************************************************************/
00029 #ifndef _CEGUILuaFunctor_h_
00030 #define _CEGUILuaFunctor_h_
00031 
00032 #include "CEGUI/EventSet.h"
00033 
00034 struct lua_State;
00035 
00036 // Start of CEGUI namespace section
00037 namespace CEGUI
00038 {
00039 
00040 // forward declaration
00041 class LuaScriptModule;
00042 
00047 class LuaFunctor
00048 {
00049 public:
00050     LuaFunctor(lua_State* state, int func, int selfIndex);
00051     LuaFunctor(lua_State* state, const String& func, int selfIndex);
00052 
00053     LuaFunctor(lua_State* state, const int func, const int selfIndex,
00054                const String& error_handler);
00055     LuaFunctor(lua_State* state, const String& func, const int selfIndex,
00056                const String& error_handler);
00057     LuaFunctor(lua_State* state, const int func, const int selfIndex,
00058                const int error_handler);
00059     LuaFunctor(lua_State* state, const String& func, const int selfIndex,
00060                const int error_handler);
00061 
00062     LuaFunctor(const LuaFunctor& cp);
00063     ~LuaFunctor();
00064 
00065     bool operator()(const EventArgs& args) const;
00066 
00073     static Event::Connection SubscribeEvent(EventSet* self,
00074                                             const String& eventName,
00075                                             const int funcIndex,
00076                                             const int selfIndex,
00077                                             const int error_handler,
00078                                             lua_State* L);
00079 
00085     static void pushNamedFunction(lua_State* L, const String& name);
00086 
00087 private:
00094     void invalidateLuaRefs();
00095 
00096     lua_State* L;
00097     mutable int index;
00098     int self;
00099     mutable bool needs_lookup;
00100     mutable String function_name;
00101 
00103     mutable String d_errFuncName;
00105     mutable int d_errFuncIndex;
00107     mutable bool d_ourErrFuncIndex;
00108 
00109     friend class LuaScriptModule;
00110 };
00111 
00112 } // namespace CEGUI
00113 
00114 #endif // end of guard _CEGUILuaFunctor_h_
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