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// 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. http://www.foxitsoftware.com
#ifndef CORE_FPDFAPI_FONT_CPDF_TOUNICODEMAP_H_
#define CORE_FPDFAPI_FONT_CPDF_TOUNICODEMAP_H_
#include <map>
#include "core/fpdfapi/parser/cpdf_stream.h"
#include "core/fxcrt/cfx_widetextbuf.h"
#include "core/fxcrt/unowned_ptr.h"
class CPDF_CID2UnicodeMap;
class CPDF_ToUnicodeMap {
public:
CPDF_ToUnicodeMap();
~CPDF_ToUnicodeMap();
void Load(const CPDF_Stream* pStream);
WideString Lookup(uint32_t charcode) const;
uint32_t ReverseLookup(wchar_t unicode) const;
private:
friend class cpdf_tounicodemap_StringToCode_Test;
friend class cpdf_tounicodemap_StringToWideString_Test;
static uint32_t StringToCode(const ByteStringView& str);
static WideString StringToWideString(const ByteStringView& str);
uint32_t GetUnicode();
std::map<uint32_t, uint32_t> m_Map;
UnownedPtr<const CPDF_CID2UnicodeMap> m_pBaseMap;
CFX_WideTextBuf m_MultiCharBuf;
};
#endif // CORE_FPDFAPI_FONT_CPDF_TOUNICODEMAP_H_
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