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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium 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 #ifndef SymbolsIterator_h | 5 #ifndef SymbolsIterator_h |
| 6 #define SymbolsIterator_h | 6 #define SymbolsIterator_h |
| 7 | 7 |
| 8 #include <memory> |
| 8 #include "platform/fonts/FontFallbackPriority.h" | 9 #include "platform/fonts/FontFallbackPriority.h" |
| 9 #include "platform/fonts/FontOrientation.h" | 10 #include "platform/fonts/FontOrientation.h" |
| 10 #include "platform/fonts/ScriptRunIterator.h" | 11 #include "platform/fonts/ScriptRunIterator.h" |
| 11 #include "platform/fonts/UTF16TextIterator.h" | 12 #include "platform/fonts/UTF16TextIterator.h" |
| 12 #include "wtf/Allocator.h" | 13 #include "wtf/Allocator.h" |
| 13 #include "wtf/Noncopyable.h" | 14 #include "wtf/Noncopyable.h" |
| 14 #include <memory> | |
| 15 | 15 |
| 16 namespace blink { | 16 namespace blink { |
| 17 | 17 |
| 18 class PLATFORM_EXPORT SymbolsIterator { | 18 class PLATFORM_EXPORT SymbolsIterator { |
| 19 USING_FAST_MALLOC(SymbolsIterator); | 19 USING_FAST_MALLOC(SymbolsIterator); |
| 20 WTF_MAKE_NONCOPYABLE(SymbolsIterator); | 20 WTF_MAKE_NONCOPYABLE(SymbolsIterator); |
| 21 | 21 |
| 22 public: | 22 public: |
| 23 SymbolsIterator(const UChar* buffer, unsigned bufferSize); | 23 SymbolsIterator(const UChar* buffer, unsigned bufferSize); |
| 24 | 24 |
| 25 bool consume(unsigned* symbolsLimit, FontFallbackPriority*); | 25 bool consume(unsigned* symbolsLimit, FontFallbackPriority*); |
| 26 | 26 |
| 27 private: | 27 private: |
| 28 FontFallbackPriority fontFallbackPriorityForCharacter(UChar32); | 28 FontFallbackPriority fontFallbackPriorityForCharacter(UChar32); |
| 29 | 29 |
| 30 std::unique_ptr<UTF16TextIterator> m_utf16Iterator; | 30 std::unique_ptr<UTF16TextIterator> m_utf16Iterator; |
| 31 unsigned m_bufferSize; | 31 unsigned m_bufferSize; |
| 32 UChar32 m_nextChar; | 32 UChar32 m_nextChar; |
| 33 bool m_atEnd; | 33 bool m_atEnd; |
| 34 | 34 |
| 35 FontFallbackPriority m_currentFontFallbackPriority; | 35 FontFallbackPriority m_currentFontFallbackPriority; |
| 36 FontFallbackPriority m_previousFontFallbackPriority; | 36 FontFallbackPriority m_previousFontFallbackPriority; |
| 37 }; | 37 }; |
| 38 | 38 |
| 39 } // namespace blink | 39 } // namespace blink |
| 40 | 40 |
| 41 #endif | 41 #endif |
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