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| 1 // Copyright 2014 PDFium Authors. All rights reserved. | 1 // Copyright 2014 PDFium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| 6 | 6 |
| 7 #ifndef CORE_INCLUDE_FXCRT_FX_BIDI_H_ | 7 #ifndef CORE_INCLUDE_FXCRT_FX_BIDI_H_ |
| 8 #define CORE_INCLUDE_FXCRT_FX_BIDI_H_ | 8 #define CORE_INCLUDE_FXCRT_FX_BIDI_H_ |
| 9 | 9 |
| 10 #include <memory> | 10 #include <memory> |
| 11 #include <vector> | 11 #include <vector> |
| 12 | 12 |
| 13 #include "fx_string.h" | 13 #include "core/include/fxcrt/fx_string.h" |
| 14 #include "fx_system.h" | 14 #include "core/include/fxcrt/fx_system.h" |
| 15 | 15 |
| 16 // Processes characters and group them into segments based on text direction. | 16 // Processes characters and group them into segments based on text direction. |
| 17 class CFX_BidiChar { | 17 class CFX_BidiChar { |
| 18 public: | 18 public: |
| 19 enum Direction { NEUTRAL, LEFT, RIGHT }; | 19 enum Direction { NEUTRAL, LEFT, RIGHT }; |
| 20 struct Segment { | 20 struct Segment { |
| 21 int32_t start; // Start position. | 21 int32_t start; // Start position. |
| 22 int32_t count; // Character count. | 22 int32_t count; // Character count. |
| 23 Direction direction; // Segment direction. | 23 Direction direction; // Segment direction. |
| 24 }; | 24 }; |
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| 64 const_iterator end() const { return m_Order.end(); } | 64 const_iterator end() const { return m_Order.end(); } |
| 65 | 65 |
| 66 private: | 66 private: |
| 67 const CFX_WideString m_Str; | 67 const CFX_WideString m_Str; |
| 68 std::unique_ptr<CFX_BidiChar> m_pBidiChar; | 68 std::unique_ptr<CFX_BidiChar> m_pBidiChar; |
| 69 std::vector<CFX_BidiChar::Segment> m_Order; | 69 std::vector<CFX_BidiChar::Segment> m_Order; |
| 70 CFX_BidiChar::Direction m_eOverallDirection; | 70 CFX_BidiChar::Direction m_eOverallDirection; |
| 71 }; | 71 }; |
| 72 | 72 |
| 73 #endif // CORE_INCLUDE_FXCRT_FX_BIDI_H_ | 73 #endif // CORE_INCLUDE_FXCRT_FX_BIDI_H_ |
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