1 // Copyright 2016 PDFium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6 
7 #ifndef CORE_FXGE_CFX_UNICODEENCODINGEX_H_
8 #define CORE_FXGE_CFX_UNICODEENCODINGEX_H_
9 
10 #include <memory>
11 
12 #include "core/fxcrt/fx_system.h"
13 #include "core/fxge/cfx_unicodeencoding.h"
14 
15 class CFX_UnicodeEncodingEx final : public CFX_UnicodeEncoding {
16  public:
17   static constexpr uint32_t kInvalidCharCode = static_cast<uint32_t>(-1);
18 
19   CFX_UnicodeEncodingEx(CFX_Font* pFont, uint32_t EncodingID);
20   ~CFX_UnicodeEncodingEx() override;
21 
22   // CFX_UnicodeEncoding:
23   uint32_t GlyphFromCharCode(uint32_t charcode) override;
24 
25   // Returns |kInvalidCharCode| on error.
26   uint32_t CharCodeFromUnicode(wchar_t Unicode) const;
27 
28  private:
29   uint32_t m_nEncodingID;
30 };
31 
32 std::unique_ptr<CFX_UnicodeEncodingEx> FX_CreateFontEncodingEx(CFX_Font* pFont);
33 
34 #endif  // CORE_FXGE_CFX_UNICODEENCODINGEX_H_
35