| // Copyright 2014 PDFium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| |
| #ifndef XFA_SRC_FEE_FDE_TXTEDTENGINE_H_ |
| #define XFA_SRC_FEE_FDE_TXTEDTENGINE_H_ |
| |
| #include "core/include/fxcrt/fx_string.h" |
| #include "xfa/src/fee/ifde_txtedtbuf.h" |
| #include "xfa/src/fee/ifde_txtedtengine.h" |
| |
| class IFX_TxtBreak; |
| class IFX_CharIter; |
| class CFDE_TxtEdtParag; |
| class CFDE_TxtEdtDoRecord_Insert; |
| class CFDE_TxtEdtDoRecord_DeleteRange; |
| |
| class IFDE_TxtEdtDoRecord { |
| public: |
| static IFDE_TxtEdtDoRecord* Create(const CFX_ByteStringC& bsDoRecord); |
| virtual ~IFDE_TxtEdtDoRecord() {} |
| virtual void Release() = 0; |
| virtual FX_BOOL Redo() = 0; |
| virtual FX_BOOL Undo() = 0; |
| virtual void Serialize(CFX_ByteString& bsDoRecord) const = 0; |
| }; |
| |
| class CFDE_TxtEdtEngine : public IFDE_TxtEdtEngine { |
| friend class CFDE_TxtEdtDoRecord_Insert; |
| friend class CFDE_TxtEdtDoRecord_DeleteRange; |
| friend class CFDE_TxtEdtPage; |
| struct _FDE_TXTEDTSELRANGE { |
| int32_t nStart; |
| int32_t nCount; |
| }; |
| typedef _FDE_TXTEDTSELRANGE FDE_TXTEDTSELRANGE; |
| typedef _FDE_TXTEDTSELRANGE* FDE_LPTXTEDTSELRANGE; |
| struct _FDE_TXTEDTPARAGPOS { |
| int32_t nParagIndex; |
| int32_t nCharIndex; |
| }; |
| typedef _FDE_TXTEDTPARAGPOS FDE_TXTEDTPARAGPOS; |
| typedef _FDE_TXTEDTPARAGPOS* FDE_LPTXTEDTPARAGPOS; |
| |
| public: |
| CFDE_TxtEdtEngine(); |
| virtual void Release(); |
| |
| virtual void SetEditParams(const FDE_TXTEDTPARAMS& params); |
| virtual const FDE_TXTEDTPARAMS* GetEditParams() const; |
| |
| virtual int32_t CountPages() const; |
| virtual IFDE_TxtEdtPage* GetPage(int32_t nIndex); |
| |
| virtual FX_BOOL SetBufChunkSize(int32_t nChunkSize); |
| virtual void SetTextByStream(IFX_Stream* pStream); |
| virtual void SetText(const CFX_WideString& wsText); |
| virtual int32_t GetTextLength() const; |
| virtual void GetText(CFX_WideString& wsText, |
| int32_t nStart, |
| int32_t nCount = -1); |
| virtual void ClearText(); |
| |
| virtual int32_t GetCaretRect(CFX_RectF& rtCaret) const; |
| virtual int32_t GetCaretPos() const; |
| virtual int32_t SetCaretPos(int32_t nIndex, FX_BOOL bBefore); |
| virtual int32_t MoveCaretPos(FDE_TXTEDTMOVECARET eMoveCaret, |
| FX_BOOL bShift = FALSE, |
| FX_BOOL bCtrl = FALSE); |
| virtual void Lock(); |
| virtual void Unlock(); |
| virtual FX_BOOL IsLocked() const; |
| |
| virtual int32_t Insert(int32_t nStart, |
| const FX_WCHAR* lpText, |
| int32_t nLength); |
| virtual int32_t Delete(int32_t nStart, FX_BOOL bBackspace = FALSE); |
| virtual int32_t DeleteRange(int32_t nStart, int32_t nCount = -1); |
| virtual int32_t Replace(int32_t nStart, |
| int32_t nLength, |
| const CFX_WideString& wsReplace); |
| |
| virtual void SetLimit(int32_t nLimit); |
| virtual void SetAliasChar(FX_WCHAR wcAlias); |
| |
| void RemoveSelRange(int32_t nStart, int32_t nCount = -1); |
| |
| virtual void AddSelRange(int32_t nStart, int32_t nCount = -1); |
| virtual int32_t CountSelRanges(); |
| virtual int32_t GetSelRange(int32_t nIndex, int32_t& nStart); |
| virtual void ClearSelection(); |
| |
| virtual FX_BOOL Redo(const CFX_ByteStringC& bsRedo); |
| virtual FX_BOOL Undo(const CFX_ByteStringC& bsUndo); |
| |
| virtual int32_t StartLayout(); |
| virtual int32_t DoLayout(IFX_Pause* pPause); |
| virtual void EndLayout(); |
| |
| virtual FX_BOOL Optimize(IFX_Pause* pPause = NULL); |
| virtual int32_t CountParags() const; |
| virtual IFDE_TxtEdtParag* GetParag(int32_t nParagIndex) const; |
| virtual IFX_CharIter* CreateCharIter(); |
| IFDE_TxtEdtBuf* GetTextBuf() const; |
| int32_t GetTextBufLength() const; |
| IFX_TxtBreak* GetTextBreak() const; |
| int32_t GetLineCount() const; |
| int32_t GetPageLineCount() const; |
| |
| int32_t Line2Parag(int32_t nStartParag, |
| int32_t nStartLineofParag, |
| int32_t nLineIndex, |
| int32_t& nStartLine) const; |
| FX_WCHAR GetAliasChar() const { return m_wcAliasChar; } |
| |
| protected: |
| virtual ~CFDE_TxtEdtEngine(); |
| |
| private: |
| void Inner_Insert(int32_t nStart, const FX_WCHAR* lpText, int32_t nLength); |
| void GetPreDeleteText(CFX_WideString& wsText, |
| int32_t nIndex, |
| int32_t nLength); |
| void GetPreInsertText(CFX_WideString& wsText, |
| int32_t nIndex, |
| const FX_WCHAR* lpText, |
| int32_t nLength); |
| void GetPreReplaceText(CFX_WideString& wsText, |
| int32_t nIndex, |
| int32_t nOriginLength, |
| const FX_WCHAR* lpText, |
| int32_t nLength); |
| |
| void Inner_DeleteRange(int32_t nStart, int32_t nCount = -1); |
| void DeleteRange_DoRecord(int32_t nStart, |
| int32_t nCount, |
| FX_BOOL bSel = FALSE); |
| void ResetEngine(); |
| void RebuildParagraphs(); |
| void RemoveAllParags(); |
| void RemoveAllPages(); |
| void UpdateParags(); |
| void UpdatePages(); |
| void UpdateTxtBreak(); |
| |
| FX_BOOL ReplaceParagEnd(FX_WCHAR*& lpText, |
| int32_t& nLength, |
| FX_BOOL bPreIsCR = FALSE); |
| void RecoverParagEnd(CFX_WideString& wsText); |
| int32_t MovePage2Char(int32_t nIndex); |
| void TextPos2ParagPos(int32_t nIndex, FDE_TXTEDTPARAGPOS& ParagPos) const; |
| int32_t MoveForward(FX_BOOL& bBefore); |
| int32_t MoveBackward(FX_BOOL& bBefore); |
| FX_BOOL MoveUp(CFX_PointF& ptCaret); |
| FX_BOOL MoveDown(CFX_PointF& ptCaret); |
| FX_BOOL MoveLineStart(); |
| FX_BOOL MoveLineEnd(); |
| FX_BOOL MoveParagStart(); |
| FX_BOOL MoveParagEnd(); |
| FX_BOOL MoveHome(); |
| FX_BOOL MoveEnd(); |
| FX_BOOL IsFitArea(CFX_WideString& wsText); |
| void UpdateCaretRect(int32_t nIndex, FX_BOOL bBefore = TRUE); |
| void GetCaretRect(CFX_RectF& rtCaret, |
| int32_t nPageIndex, |
| int32_t nCaret, |
| FX_BOOL bBefore = TRUE); |
| void UpdateCaretIndex(const CFX_PointF& ptCaret); |
| |
| FX_BOOL IsSelect(); |
| void DeleteSelect(); |
| |
| IFDE_TxtEdtBuf* m_pTxtBuf; |
| IFX_TxtBreak* m_pTextBreak; |
| FDE_TXTEDTPARAMS m_Param; |
| CFX_ArrayTemplate<IFDE_TxtEdtPage*> m_PagePtrArray; |
| CFX_ArrayTemplate<CFDE_TxtEdtParag*> m_ParagPtrArray; |
| CFX_ArrayTemplate<FDE_LPTXTEDTSELRANGE> m_SelRangePtrArr; |
| int32_t m_nPageLineCount; |
| int32_t m_nLineCount; |
| int32_t m_nAnchorPos; |
| int32_t m_nLayoutPos; |
| FX_FLOAT m_fCaretPosReserve; |
| int32_t m_nCaret; |
| FX_BOOL m_bBefore; |
| int32_t m_nCaretPage; |
| CFX_RectF m_rtCaret; |
| FX_DWORD m_dwFindFlags; |
| FX_BOOL m_bLock; |
| int32_t m_nLimit; |
| FX_WCHAR m_wcAliasChar; |
| int32_t m_nFirstLineEnd; |
| FX_BOOL m_bAutoLineEnd; |
| FX_WCHAR m_wLineEnd; |
| FDE_TXTEDT_TEXTCHANGE_INFO m_ChangeInfo; |
| }; |
| |
| class CFDE_TxtEdtDoRecord_Insert : public IFDE_TxtEdtDoRecord { |
| public: |
| CFDE_TxtEdtDoRecord_Insert(const CFX_ByteStringC& bsDoRecord); |
| CFDE_TxtEdtDoRecord_Insert(CFDE_TxtEdtEngine* pEngine, |
| int32_t nCaret, |
| const FX_WCHAR* lpText, |
| int32_t nLength); |
| virtual void Release(); |
| virtual FX_BOOL Undo(); |
| virtual FX_BOOL Redo(); |
| virtual void Serialize(CFX_ByteString& bsDoRecord) const; |
| |
| protected: |
| ~CFDE_TxtEdtDoRecord_Insert(); |
| void Deserialize(const CFX_ByteStringC& bsDoRecord); |
| |
| private: |
| CFDE_TxtEdtEngine* m_pEngine; |
| int32_t m_nCaret; |
| CFX_WideString m_wsInsert; |
| }; |
| |
| class CFDE_TxtEdtDoRecord_DeleteRange : public IFDE_TxtEdtDoRecord { |
| public: |
| CFDE_TxtEdtDoRecord_DeleteRange(const CFX_ByteStringC& bsDoRecord); |
| CFDE_TxtEdtDoRecord_DeleteRange(CFDE_TxtEdtEngine* pEngine, |
| int32_t nIndex, |
| int32_t nCaret, |
| const CFX_WideString& wsRange, |
| FX_BOOL bSel = FALSE); |
| virtual void Release(); |
| virtual FX_BOOL Undo(); |
| virtual FX_BOOL Redo(); |
| virtual void Serialize(CFX_ByteString& bsDoRecord) const; |
| |
| protected: |
| ~CFDE_TxtEdtDoRecord_DeleteRange(); |
| void Deserialize(const CFX_ByteStringC& bsDoRecord); |
| |
| private: |
| CFDE_TxtEdtEngine* m_pEngine; |
| FX_BOOL m_bSel; |
| int32_t m_nIndex; |
| int32_t m_nCaret; |
| CFX_WideString m_wsRange; |
| }; |
| |
| #endif // XFA_SRC_FEE_FDE_TXTEDTENGINE_H_ |
