utils.hpp

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/* 
 * This file is part of PLaSK (https://plask.app) by Photonics Group at TUL
 * Copyright (c) 2022 Lodz University of Technology
 * 
 * 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, version 3.
 *
 * 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.
 */
#ifndef PLASK__MESH_UTILS_H
#define PLASK__MESH_UTILS_H
 
#include "mesh.hpp"
 
namespace plask {
 
struct PLASK_API SameMeshChecker {
 
private:
 
    boost::signals2::connection connection_with_mesh;
 
    const Mesh* mesh;
 
    void setMesh(const Mesh* mesh);
 
    void onMeshChanged(const Mesh::Event&) {
        setMesh(nullptr);
    }
 
public:
 
    bool operator()(const Mesh* mesh) {
        if (this->mesh == mesh)
            return true;
        else {
            setMesh(mesh);
            return false;
        }
    }
 
    bool operator()(shared_ptr<const Mesh> mesh) {
        return this->operator()(mesh.get());
    }
 
    /*
     * Get mesh for which operator() has been recently called if it this @p mesh has not been changed.
     * @return mesh for which operator() has been recently called if it this @p mesh has not been changed.
     */
    /*const Mesh* getMesh() const {
        return mesh;
    }*/
 
    SameMeshChecker(): mesh(nullptr) {}
 
};
 
 
}   // namespace plask
 
#endif // PLASK__MESH_UTILS_H