GDevelop/Core/GDCore/Tools/FileStream.h

#ifndef GDCORE_FSTREAMTOOLS
#define GDCORE_FSTREAMTOOLS

#include <iostream>
#include <memory>

#include <SFML/System.hpp>

#include "GDCore/String.h"

#if defined(WINDOWS) && __GLIBCXX__
#include <ext/stdio_filebuf.h>
#else
#include <fstream>  //for std::filebuf
#endif

namespace gd {

/**
 * Similar to std::i/ofstream except that it can open file with
 * gd::String paths (useful on Windows where fstream doesn't
 * support wide paths).
 */
class GD_CORE_API FileStream : public std::iostream {
 public:
#if defined(WINDOWS) && __GLIBCXX__
  using InternalBufferType = __gnu_cxx::stdio_filebuf<char>;
#else
  using InternalBufferType = std::filebuf;
#endif

  FileStream();
  FileStream(const gd::String& path, std::ios_base::openmode mode);
  ~FileStream();

  FileStream(const FileStream& other) = delete;
  FileStream(FileStream&& other) = delete;  // HACK for GCC 4.9 (Windows)
  // FileStream(FileStream && other); WILL WORK with GCC>=5 (not 4.9 used on
  // Windows)

  FileStream& operator=(const FileStream& other) = delete;
  FileStream& operator=(FileStream&& other) =
      delete;  // HACK for GCC 4.9 (Windows)
  // FileStream& operator=(FileStream && other); WILL WORK with GCC>=5 (not 4.9
  // used on Windows)

  void open(const gd::String& path, std::ios_base::openmode mode);

  bool is_open() const;

  void close();

  // void swap(FileStream & other); //WILL WORK with GCC>=5 (not 4.9 used on
  // Windows)

 private:
  FILE* m_file;
  std::unique_ptr<InternalBufferType> m_buffer;
};

class GD_CORE_API SFMLFileStream : public sf::InputStream {
 public:
  SFMLFileStream();
  ~SFMLFileStream();

  bool open(const gd::String& filename);

  virtual sf::Int64 read(void* data, sf::Int64 size);

  virtual sf::Int64 seek(sf::Int64 position);

  virtual sf::Int64 tell();

  virtual sf::Int64 getSize();

 private:
  FILE* m_file;
};

}  // namespace gd

#endif