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      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_FPDFTEXT_CPDF_TEXTPAGEFIND_H_
      8 #define CORE_FPDFTEXT_CPDF_TEXTPAGEFIND_H_
      9 
     10 #include <vector>
     11 
     12 #include "core/fxcrt/fx_coordinates.h"
     13 #include "core/fxcrt/fx_string.h"
     14 #include "core/fxcrt/fx_system.h"
     15 
     16 class CPDF_TextPage;
     17 
     18 class CPDF_TextPageFind {
     19  public:
     20   explicit CPDF_TextPageFind(const CPDF_TextPage* pTextPage);
     21   ~CPDF_TextPageFind();
     22 
     23   bool FindFirst(const CFX_WideString& findwhat, int flags, int startPos = 0);
     24   bool FindNext();
     25   bool FindPrev();
     26   int GetCurOrder() const;
     27   int GetMatchedCount() const;
     28 
     29  protected:
     30   void ExtractFindWhat(const CFX_WideString& findwhat);
     31   bool IsMatchWholeWord(const CFX_WideString& csPageText,
     32                         int startPos,
     33                         int endPos);
     34   bool ExtractSubString(CFX_WideString& rString,
     35                         const FX_WCHAR* lpszFullString,
     36                         int iSubString,
     37                         FX_WCHAR chSep);
     38   CFX_WideString MakeReverse(const CFX_WideString& str);
     39   int GetCharIndex(int index) const;
     40 
     41  private:
     42   std::vector<uint16_t> m_CharIndex;
     43   const CPDF_TextPage* m_pTextPage;
     44   CFX_WideString m_strText;
     45   CFX_WideString m_findWhat;
     46   int m_flags;
     47   std::vector<CFX_WideString> m_csFindWhatArray;
     48   int m_findNextStart;
     49   int m_findPreStart;
     50   bool m_bMatchCase;
     51   bool m_bMatchWholeWord;
     52   int m_resStart;
     53   int m_resEnd;
     54   std::vector<CFX_FloatRect> m_resArray;
     55   bool m_IsFind;
     56 };
     57 
     58 #endif  // CORE_FPDFTEXT_CPDF_TEXTPAGEFIND_H_
     59