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Side by Side Diff: xfa/src/fee/fde_txtedtbuf.h

Issue 1803723002: Move xfa/src up to xfa/. (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@master
Patch Set: Rebase to master Created 4 years, 9 months ago
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1 // Copyright 2014 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 XFA_SRC_FEE_FDE_TXTEDTBUF_H_
8 #define XFA_SRC_FEE_FDE_TXTEDTBUF_H_
9
10 #include "xfa/src/fee/ifde_txtedtbuf.h"
11 #include "xfa/src/fee/ifde_txtedtengine.h"
12 #include "xfa/src/fgas/crt/fgas_memory.h"
13
14 class IFX_CharIter;
15 class CFDE_TxtEdtBuf;
16
17 class CFDE_TxtEdtBufIter : public IFX_CharIter {
18 public:
19 CFDE_TxtEdtBufIter(CFDE_TxtEdtBuf* pBuf, FX_WCHAR wcAlias = 0);
20
21 virtual void Release();
22 virtual FX_BOOL Next(FX_BOOL bPrev = FALSE);
23 virtual FX_WCHAR GetChar();
24 virtual void SetAt(int32_t nIndex);
25 virtual int32_t GetAt() const;
26 virtual FX_BOOL IsEOF(FX_BOOL bTail = TRUE) const;
27 virtual IFX_CharIter* Clone();
28
29 protected:
30 ~CFDE_TxtEdtBufIter();
31
32 private:
33 CFDE_TxtEdtBuf* m_pBuf;
34 int32_t m_nCurChunk;
35 int32_t m_nCurIndex;
36 int32_t m_nIndex;
37 FX_WCHAR m_Alias;
38 };
39 class CFDE_TxtEdtBuf : public IFDE_TxtEdtBuf {
40 friend class CFDE_TxtEdtBufIter;
41 struct _FDE_CHUNKHEADER {
42 int32_t nUsed;
43 FX_WCHAR wChars[1];
44 };
45 typedef _FDE_CHUNKHEADER FDE_CHUNKHEADER;
46 typedef _FDE_CHUNKHEADER* FDE_LPCHUNKHEADER;
47 struct _FDE_CHUNKPLACE {
48 int32_t nChunkIndex;
49 int32_t nCharIndex;
50 };
51 typedef _FDE_CHUNKPLACE FDE_CHUNKPLACE;
52 typedef _FDE_CHUNKPLACE* FDE_LPCHUNKPLACE;
53
54 public:
55 CFDE_TxtEdtBuf(int32_t nDefChunkSize = FDE_DEFCHUNKLENGTH);
56
57 virtual void Release();
58 virtual FX_BOOL SetChunkSize(int32_t nChunkSize);
59 virtual int32_t GetChunkSize() const;
60 virtual int32_t GetTextLength() const;
61 virtual void SetText(const CFX_WideString& wsText);
62 virtual void GetText(CFX_WideString& wsText) const;
63 virtual FX_WCHAR GetCharByIndex(int32_t nIndex) const;
64 virtual void GetRange(CFX_WideString& wsText,
65 int32_t nBegine,
66 int32_t nCount = -1) const;
67
68 virtual void Insert(int32_t nPos,
69 const FX_WCHAR* lpText,
70 int32_t nLength = 1);
71 virtual void Delete(int32_t nIndex, int32_t nLength = 1);
72 virtual void Clear(FX_BOOL bRelease = TRUE);
73
74 virtual FX_BOOL Optimize(IFX_Pause* pPause = NULL);
75
76 protected:
77 virtual ~CFDE_TxtEdtBuf();
78
79 private:
80 void ResetChunkBuffer(int32_t nDefChunkCount, int32_t nChunkSize);
81 int32_t CP2Index(const FDE_CHUNKPLACE& cp) const;
82 void Index2CP(int32_t nIndex, FDE_CHUNKPLACE& cp) const;
83
84 int32_t m_nChunkSize;
85
86 int32_t m_nTotal;
87 FX_BOOL m_bChanged;
88 CFX_PtrArray m_Chunks;
89 IFX_MEMAllocator* m_pAllocator;
90 };
91
92 #endif // XFA_SRC_FEE_FDE_TXTEDTBUF_H_
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