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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