blob: d6ea160af74632184583f4d6dd0b0181492c8a7a [file] [log] [blame]
// Copyright 2017 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc.
#include "core/fxcrt/fx_stream.h"
#include "core/fxcrt/fx_system.h"
#include "core/fxcrt/retain_ptr.h"
class CFX_SeekableStreamProxy final : public Retainable {
template <typename T, typename... Args>
friend RetainPtr<T> pdfium::MakeRetain(Args&&... args);
// Unlike IFX_SeekableStreamProxy, buffers and sizes are always in terms
// of the number of wchar_t elementss, not bytes.
FX_FILESIZE GetSize(); // Estimate under worst possible expansion.
bool IsEOF();
size_t ReadBlock(wchar_t* pStr, size_t size);
uint16_t GetCodePage() const { return m_wCodePage; }
void SetCodePage(uint16_t wCodePage);
enum class From {
Begin = 0,
explicit CFX_SeekableStreamProxy(
const RetainPtr<IFX_SeekableReadStream>& stream);
~CFX_SeekableStreamProxy() override;
FX_FILESIZE GetPosition();
void Seek(From eSeek, FX_FILESIZE iOffset);
size_t ReadData(uint8_t* pBuffer, size_t iBufferSize);
uint16_t m_wCodePage;
size_t m_wBOMLength;
FX_FILESIZE m_iPosition;
RetainPtr<IFX_SeekableReadStream> m_pStream;