null_logger.h

/*****************************************************************************
 * VCLib                                                                     *
 * Visual Computing Library                                                  *
 *                                                                           *
 * Copyright(C) 2021-2025                                                    *
 * Visual Computing Lab                                                      *
 * ISTI - Italian National Research Council                                  *
 *                                                                           *
 * All rights reserved.                                                      *
 *                                                                           *
 * This program is free software; you can redistribute it and/or modify      *
 * it under the terms of the Mozilla Public License Version 2.0 as published *
 * by the Mozilla Foundation; either version 2 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              *
 * Mozilla Public License Version 2.0                                        *
 * (https://www.mozilla.org/en-US/MPL/2.0/) for more details.                *
 ****************************************************************************/
 
#ifndef VCL_BASE_LOGGER_NULL_LOGGER_H
#define VCL_BASE_LOGGER_NULL_LOGGER_H
 
#include "abstract_logger.h"
 
#include <string>
 
namespace vcl {
 
class NullLogger : public AbstractLogger
{
public:
    NullLogger() = default;
 
    void enableIndentation() override final {}
 
    void disableIndentation() override final {}
 
    void enablePrintPercentage() override final {}
 
    void disablePrintPercentage() override final {}
 
    void setPrintLevel(LogLevel) override final {}
 
    void enablePrintMessageDuringProgress() override final {}
 
    void disablePrintMessageDuringProgress() override final {}
 
    void enablePrintTimer() override final {}
 
    void disablePrintTimer() override final {}
 
    void reset() override final {}
 
    void setMaxLineWidth(uint) override final {}
 
    void startTimer() override final {}
 
    void stopTimer() override final {}
 
    double time() const override final { return 0; }
 
    void startNewTask(double, double, const std::string&) override final {}
 
    void endTask(const std::string&) override final {}
 
    double percentage() const override final { return 0; }
 
    void setPercentage(uint) override final {}
 
    void log(const std::string&) const override final {}
 
    void log(const std::string&, LogLevel) const override final {}
 
    void log(uint, const std::string&) override final {}
 
    void log(uint, const std::string&, LogLevel) override final {}
 
    void startProgress(const std::string&, uint, uint = 0, uint = 0, uint = 0)
        override final
    {
    }
 
    void endProgress() override final {}
 
    void progress(uint) override final {}
};
 
inline NullLogger nullLogger;
 
} // namespace vcl
 
#endif // VCL_BASE_LOGGER_NULL_LOGGER_H