80 lines
2.2 KiB
C++
80 lines
2.2 KiB
C++
/*
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* Copyright (C) 2016 - 2017 by Jyrki Vesterinen <sandgtx@gmail.com>
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* Part of the Battle for Wesnoth Project http://www.wesnoth.org/
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY.
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*
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* See the COPYING file for more details.
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*/
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#include "scripting/lua_preferences.hpp"
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#include "config.hpp"
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#include "lua/lua.h"
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#include "lua/lauxlib.h"
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#include "preferences.hpp"
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#include "scripting/lua_common.hpp"
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/**
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* The __index metamethod.
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* Parameter 1: the preference table.
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* Parameter 2: preference name, must be a string.
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* Returns: preference value. If there isn't such a preference, returns nil.
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*/
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static int impl_preferences_get(lua_State* L)
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{
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std::string preference_name = luaL_checkstring(L, 2);
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luaW_pushscalar(L, preferences::get_as_attribute(preference_name));
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return 1;
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}
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/**
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* The __newindex metamethod.
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* Parameter 1: the preference table.
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* Parameter 2: preference name, must be a string.
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* Parameter 3: preference value.
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* Returns nothing.
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*/
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static int impl_preferences_set(lua_State* L)
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{
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std::string preference_name = luaL_checkstring(L, 2);
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config::attribute_value value;
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luaW_toscalar(L, 3, value);
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preferences::set(preference_name, value);
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return 0;
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}
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namespace lua_preferences
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{
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std::string register_table(lua_State* L)
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{
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// Push the wesnoth table to the stack
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lua_getglobal(L, "wesnoth");
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// Create the preferences table
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lua_newtable(L);
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lua_pushcfunction(L, impl_preferences_get);
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lua_setfield(L, -2, "__index");
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lua_pushcfunction(L, impl_preferences_set);
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lua_setfield(L, -2, "__newindex");
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lua_pushstring(L, "src/scripting/lua_preferences.cpp");
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lua_setfield(L, -2, "__metatable");
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// Set the table as its own metatable
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lua_pushvalue(L, -1);
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lua_setmetatable(L, -2);
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// Assign the table to wesnoth.preferences
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lua_setfield(L, -2, "preferences");
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// Pop the wesnoth table from the stack
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lua_pop(L, 1);
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return "Adding preferences table...\n";
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}
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}
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