library.h

/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
 
#ifndef AGS_ENGINE_UTIL_LIBRARY_H
#define AGS_ENGINE_UTIL_LIBRARY_H
 
#include "ags/shared/core/platform.h"
#include "ags/shared/util/string.h"
 
namespace AGS3 {
namespace AGS {
namespace Engine {
 
using AGS::Shared::String;
 
class BaseLibrary {
public:
    BaseLibrary() {}
 
    virtual ~BaseLibrary() {}
 
    // Get library name; returns empty string if not loaded
    inline String GetName() const { return _name; }
    // Get actual filename; returns empty string if not loaded
    inline String GetFileName() const { return _filename; }
    // Get path used to load the library; or empty string is not loaded.
    // NOTE: this is NOT a fully qualified path, but a lookup path.
    inline String GetPath() const { return _path; }
 
    // Returns expected filename form for the dynamic library of a given name
    virtual String GetFilenameForLib(const String &libname) = 0;
 
    // Try load a library of a given name
    virtual bool Load(const String &libname) = 0;
    // Unload a library; does nothing if was not loaded
    virtual void Unload() = 0;
    // Tells if library is loaded
    virtual bool IsLoaded() const = 0;
 
protected:
    String _name;
    String _filename;
    String _path;
};
 
} // namespace Engine
} // namespace AGS
} // namespace AGS3
 
#endif