mirror of
https://github.com/libretro/scummvm.git
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84 lines
2.5 KiB
C++
84 lines
2.5 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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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 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef LUA_SCUMMVM_FILE_H
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#define LUA_SCUMMVM_FILE_H
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#include "common/str.h"
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#include "common/file.h"
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namespace Lua {
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class LuaFileProxy {
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public:
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static LuaFileProxy *create(const Common::String &filename, const Common::String &mode);
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public:
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virtual ~LuaFileProxy() {}
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virtual bool eof() const = 0;
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virtual size_t read(void *ptr, size_t size, size_t count) = 0;
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virtual size_t write(const char *ptr, size_t count) = 0;
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};
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/**
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* The following class acts as a proxy interface to the I/O code, pretending that the ScummVM
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* settings are a properly formatted 'config.lua' file
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*/
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class LuaFileConfig : public LuaFileProxy {
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friend class LuaFileProxy;
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private:
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Common::String _readData;
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uint _readPos;
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Common::String _settings;
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Common::String formatDouble(double value);
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void setupConfigFile();
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Common::String getLanguage();
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void setLanguage(const Common::String &lang);
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void writeSettings();
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void updateSetting(const Common::String &setting, const Common::String &value);
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LuaFileConfig(const Common::String &filename, const Common::String &mode);
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public:
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virtual ~LuaFileConfig();
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bool eof() const override { return _readPos >= _readData.size(); }
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size_t read(void *ptr, size_t size, size_t count) override;
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size_t write(const char *ptr, size_t count) override;
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};
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class LuaFileRead : public LuaFileProxy {
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private:
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Common::File _file;
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int32 _size;
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public:
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LuaFileRead(const Common::String &filename, const Common::String &mode);
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public:
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virtual ~LuaFileRead() {}
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bool eof() const override;
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size_t read(void *ptr, size_t size, size_t count) override;
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size_t write(const char *ptr, size_t count) override;
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};
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} // End of namespace Lua
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#endif
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