imstkFpsTxtCounter.h

/*
** This file is part of the Interactive Medical Simulation Toolkit (iMSTK)
** iMSTK is distributed under the Apache License, Version 2.0.
** See accompanying NOTICE for details.
*/

#pragma once

#include "imstkComponent.h"

namespace imstk
{
class SceneManager;
class TextVisualModel;
class Viewer;

class FpsTxtCounter : public SceneBehaviour
{
public:
    FpsTxtCounter(const std::string& name = "FpsTxtCounter");

    void visualUpdate(const double& dt);

    void setViewer(std::weak_ptr<Viewer> viewer) { m_viewer = viewer; }
    void setSceneManager(std::weak_ptr<SceneManager> sceneManager) { m_sceneManager = sceneManager; }

protected:
    void init() override;

protected:
    std::shared_ptr<TextVisualModel> m_fpsTextVisualModel;
    std::weak_ptr<Viewer>       m_viewer;
    std::weak_ptr<SceneManager> m_sceneManager;
    int    m_prevInfoLevel  = -1;
    double m_lastUpdate     = 0.0;
    double m_fpsUpdateDelay = 0.5;
};
} // namespace imstk