// Copyright 2016 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_FONTENCODING_H_
#define CORE_FPDFAPI_FONT_CPDF_FONTENCODING_H_

#include <memory>

#include "core/fxcrt/cfx_string_pool_template.h"
#include "core/fxcrt/cfx_weak_ptr.h"
#include "core/fxcrt/fx_string.h"

#define PDFFONT_ENCODING_BUILTIN 0
#define PDFFONT_ENCODING_WINANSI 1
#define PDFFONT_ENCODING_MACROMAN 2
#define PDFFONT_ENCODING_MACEXPERT 3
#define PDFFONT_ENCODING_STANDARD 4
#define PDFFONT_ENCODING_ADOBE_SYMBOL 5
#define PDFFONT_ENCODING_ZAPFDINGBATS 6
#define PDFFONT_ENCODING_PDFDOC 7
#define PDFFONT_ENCODING_MS_SYMBOL 8
#define PDFFONT_ENCODING_UNICODE 9

uint32_t FT_CharCodeFromUnicode(int encoding, FX_WCHAR unicode);
FX_WCHAR FT_UnicodeFromCharCode(int encoding, uint32_t charcode);

FX_WCHAR PDF_UnicodeFromAdobeName(const FX_CHAR* name);
CFX_ByteString PDF_AdobeNameFromUnicode(FX_WCHAR unicode);

const uint16_t* PDF_UnicodesForPredefinedCharSet(int encoding);
const FX_CHAR* PDF_CharNameFromPredefinedCharSet(int encoding,
                                                 uint8_t charcode);

class CPDF_Object;

class CPDF_FontEncoding {
 public:
  CPDF_FontEncoding();
  explicit CPDF_FontEncoding(int PredefinedEncoding);

  void LoadEncoding(CPDF_Object* pEncoding);

  bool IsIdentical(CPDF_FontEncoding* pAnother) const;

  FX_WCHAR UnicodeFromCharCode(uint8_t charcode) const {
    return m_Unicodes[charcode];
  }
  int CharCodeFromUnicode(FX_WCHAR unicode) const;

  void SetUnicode(uint8_t charcode, FX_WCHAR unicode) {
    m_Unicodes[charcode] = unicode;
  }

  std::unique_ptr<CPDF_Object> Realize(CFX_WeakPtr<CFX_ByteStringPool> pPool);

 public:
  FX_WCHAR m_Unicodes[256];
};

#endif  // CORE_FPDFAPI_FONT_CPDF_FONTENCODING_H_