1 // Copyright 2016 The PDFium Authors 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 <stdint.h> 11 12 #include <memory> 13 14 #include "core/fxge/cfx_face.h" 15 #include "core/fxge/cfx_unicodeencoding.h" 16 #include "core/fxge/fx_fontencoding.h" 17 18 class CFX_UnicodeEncodingEx final : public CFX_UnicodeEncoding { 19 public: 20 static constexpr uint32_t kInvalidCharCode = static_cast<uint32_t>(-1); 21 22 CFX_UnicodeEncodingEx(CFX_Font* pFont, fxge::FontEncoding encoding_id); 23 ~CFX_UnicodeEncodingEx() override; 24 25 // CFX_UnicodeEncoding: 26 uint32_t GlyphFromCharCode(uint32_t charcode) override; 27 28 // Returns |kInvalidCharCode| on error. 29 uint32_t CharCodeFromUnicode(wchar_t Unicode) const; 30 31 private: 32 fxge::FontEncoding encoding_id_; 33 }; 34 35 std::unique_ptr<CFX_UnicodeEncodingEx> FX_CreateFontEncodingEx(CFX_Font* pFont); 36 37 #endif // CORE_FXGE_CFX_UNICODEENCODINGEX_H_ 38