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// Copyright (c) 2010-2026, Lawrence Livermore National Security, LLC. Produced
// at the Lawrence Livermore National Laboratory. All Rights reserved. See files
// LICENSE and NOTICE for details. LLNL-CODE-443271.
//
// This file is part of the GLVis visualization tool and library. For more
// information and source code availability see https://glvis.org.
//
// GLVis is free software; you can redistribute it and/or modify it under the
// terms of the BSD-3 license. We welcome feedback and contributions, see file
// CONTRIBUTING.md for details.
#ifndef GLVIS_FILE_READER_HPP
#define GLVIS_FILE_READER_HPP
#include "data_state.hpp"
class FileReader
{
DataState &data;
int pad_digits;
static bool CheckStreamIsComplex(std::istream &sol, bool parallel = false);
int ReadParMeshAndGridFunction(int np, const char *mesh_prefix,
const char *sol_prefix, int component = -1);
int ReadParMeshAndQuadFunction(int np, const char *mesh_prefix,
const char *sol_prefix, int component = -1);
public:
enum class FileType
{
MESH,
SCALAR_SOL,
VECTOR_SOL,
GRID_FUNC,
QUAD_FUNC,
};
FileReader(DataState &data_, int pad_digits_ = 6)
: data(data_), pad_digits(pad_digits_) { }
/// Read the mesh and the solution from a file
int ReadSerial(FileType ft, const char *mesh_file, const char *sol_file,
int component = -1);
/// Read the mesh and the solution from multiple files
int ReadParallel(int np, FileType ft, const char *mesh_file,
const char *sol_file, int component = -1);
};
#endif // GLVIS_FILE_READER_HPP
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