*
* @brief Declaration of CGhostTextBuffer (subclasses CCrystalTextBuffer to handle ghost lines)
*/
-// ID line follows -- this is updated by SVN
-// $Id$
-
-#ifndef __GHOSTTEXTBUFFER_H__
-#define __GHOSTTEXTBUFFER_H__
+#pragma once
#include <vector>
#include "ccrystaltextbuffer.h"
*/
enum GHOST_LINEFLAGS
{
- LF_GHOST = 0x00400000L, /**< Ghost line. */
+ LF_GHOST = 0x00400000UL, /**< Ghost line. */
};
/////////////////////////////////////////////////////////////////////////////
public:
DECLARE_DYNCREATE (CGhostTextBuffer)
-protected :
-#pragma pack(push, 1)
- // Nested class declarations
- enum
- {
- UNDO_INSERT = 0x0001,
- UNDO_BEGINGROUP = 0x0100
- };
-
- /**
- Support For Descriptions On Undo/Redo Actions
-
- We need a structure to remember richer information position
- and the number of real lines inserted/deleted (to set ghost lines during undo)
-
- This flags are parameters of AddUndoRecord ; so AddUndoRecord
- is not the virtual version of CCrystalTextBuffer::AddUndoRecord
-
- The text is duplicated (already in CCrystalTextBuffer::SUndoRecord),
- and it is not useful. If someone finds a clean way to correct this...
- */
- struct SUndoRecord
- {
- DWORD m_dwFlags;
-
- // Undo records store file line numbers, not screen line numbers
- // File line numbers do not count ghost lines
- // (ghost lines are lines with no text and no EOL chars, which are
- // used by WinMerge as left-only or right-only placeholders)
- // All the stored line number needed are real !
-
- CPoint m_ptStartPos, m_ptEndPos; // Block of text participating
- int m_ptStartPos_nGhost, m_ptEndPos_nGhost;
-
- // Redo records store file line numbers, not screen line numbers
- // they store the file number of the previous real line
- // and (apparentLine - ComputeApparentLine(previousRealLine))
-
- CPoint m_redo_ptStartPos, m_redo_ptEndPos; // Block of text participating
- int m_redo_ptStartPos_nGhost, m_redo_ptEndPos_nGhost;
-
- int m_nRealLinesCreated; // number of lines created during insertion
- // (= total of real lines after - total before)
- int m_nRealLinesInDeletedBlock; // number of real lines in the deleted block
- // (<> total of real lines after - total before
- // as first/end line may be just truncated, not removed)
- int m_nAction; // For information only: action type
- CDWordArray *m_paSavedRevisonNumbers;
-
-private :
- // TCHAR *m_pcText;
- // Since in most cases we have 1 character here,
- // we should invent a better way. Note: 2 * sizeof(WORD) <= sizeof(TCHAR*)
- //
- // Here we will use the following trick: on Win32 platforms high-order word
- // of any pointer will be != 0. So we can store 1 character strings without
- // allocating memory.
- //
- struct TextBuffer
- {
- int size;
- TCHAR data[1];
- };
- union
- {
- TextBuffer *m_pszText; // For cases when we have > 1 character strings
- TCHAR m_szText[2]; // For single-character strings
-
- };
-
-public :
- SUndoRecord () // default constructor
- {
- memset (this, 0, sizeof (SUndoRecord));
- }
- SUndoRecord (const SUndoRecord & src) // copy constructor
- {
- memset (this, 0, sizeof (SUndoRecord));
- (*this)=src;
- }
- SUndoRecord & operator=(const SUndoRecord & src) // copy assignment
- {
- m_dwFlags = src.m_dwFlags;
- m_ptStartPos = src.m_ptStartPos;
- m_ptStartPos_nGhost = src.m_ptStartPos_nGhost;
- m_ptEndPos = src.m_ptEndPos;
- m_ptEndPos_nGhost = src.m_ptEndPos_nGhost;
- m_nAction = src.m_nAction;
- m_redo_ptStartPos = src.m_redo_ptStartPos;
- m_redo_ptStartPos_nGhost = src.m_redo_ptStartPos_nGhost;
- m_redo_ptEndPos = src.m_redo_ptEndPos;
- m_redo_ptEndPos_nGhost = src.m_redo_ptEndPos_nGhost;
- m_nRealLinesCreated = src.m_nRealLinesCreated;
- m_nRealLinesInDeletedBlock = src.m_nRealLinesInDeletedBlock;
- SetText(src.GetText(), src.GetTextLength());
- INT_PTR size = src.m_paSavedRevisonNumbers->GetSize();
- if (!m_paSavedRevisonNumbers)
- m_paSavedRevisonNumbers = new CDWordArray();
- m_paSavedRevisonNumbers->SetSize(size);
- INT_PTR i;
- for (i = 0; i < size; i++)
- (*m_paSavedRevisonNumbers)[i] = (*src.m_paSavedRevisonNumbers)[i];
- return *this;
- }
- ~SUndoRecord () // destructor
- {
- FreeText();
- if (m_paSavedRevisonNumbers)
- delete m_paSavedRevisonNumbers;
- }
-
- void SetText (LPCTSTR pszText, int cchText);
- void FreeText ();
-
- LPCTSTR GetText () const
- {
- // See the m_szText/m_pszText definition
- // Check if m_pszText is a pointer by removing bits having
- // possible char value
- if (((INT_PTR)m_pszText >> 16) != 0)
- return m_pszText->data;
- return m_szText;
- }
- int GetTextLength () const
- {
- if (((INT_PTR)m_pszText >> 16) != 0)
- return m_pszText->size;
- return 1;
- }
- };
-
-#pragma pack(pop)
-
-protected:
- /**
- We need another array with our richer structure.
-
- We share the positions with the CCrystalTextBuffer object.
- We share m_bUndoGroup, its utility is to check we opened the UndoBeginGroup.
- We share m_nUndoBufSize which is the max buffer size.
- */
- std::vector<SUndoRecord> m_aUndoBuf;
- /**
- This one must be duplicated because the flag UNDO_BEGINGROUP needs to be set in both
- CGhostTextBuffer::m_aUndoBuf and CCrystalTextBuffer::m_aUndoBuf CArrays
- */
- BOOL m_bUndoBeginGroup;
-
- // [JRT] Support For Descriptions On Undo/Redo Actions
- virtual void AddUndoRecord (BOOL bInsert, const CPoint & ptStartPos, const CPoint & ptEndPos,
- LPCTSTR pszText, int cchText, int nRealLinesChanged, int nActionType = CE_ACTION_UNKNOWN, CDWordArray *paSavedRevisonNumbers = NULL);
-
private:
/**
* @brief A struct mapping real lines and apparent (screen) lines.
// Operations
private:
- BOOL InternalInsertGhostLine (CCrystalTextView * pSource, int nLine);
- BOOL InternalDeleteGhostLine (CCrystalTextView * pSource, int nLine, int nCount);
+#if 0
+ bool InternalInsertGhostLine (CCrystalTextView * pSource, int nLine);
+#endif
+ bool InternalDeleteGhostLine (CCrystalTextView * pSource, int nLine, int nCount);
public :
// Construction/destruction code
CGhostTextBuffer ();
- virtual BOOL InitNew (CRLFSTYLE nCrlfStyle = CRLF_STYLE_DOS);
/**
This should work in base code as ghost lines are real empty lines
*/
virtual void GetTextWithoutEmptys (int nStartLine, int nStartChar,
int nEndLine, int nEndChar, CString &text,
- CRLFSTYLE nCrlfStyle =CRLF_STYLE_AUTOMATIC);
+ CRLFSTYLE nCrlfStyle =CRLFSTYLE::AUTOMATIC,
+ bool bExcludeInvisibleLines = true) const override;
+ virtual bool IsIndentableLine(int nLine) const override { return (GetLineFlags(nLine) & LF_GHOST) == 0; }
// Text modification functions
- virtual BOOL InsertText (CCrystalTextView * pSource, int nLine, int nPos,
- LPCTSTR pszText, int cchText, int &nEndLine, int &nEndChar,
- int nAction = CE_ACTION_UNKNOWN, BOOL bHistory = TRUE);
- virtual BOOL DeleteText (CCrystalTextView * pSource, int nStartLine,
+ virtual bool InsertText (CCrystalTextView * pSource, int nLine, int nPos,
+ LPCTSTR pszText, size_t cchText, int &nEndLine, int &nEndChar,
+ int nAction = CE_ACTION_UNKNOWN, bool bHistory =true) override;
+ virtual bool DeleteText2 (CCrystalTextView * pSource, int nStartLine,
int nStartPos, int nEndLine, int nEndPos,
- int nAction = CE_ACTION_UNKNOWN, BOOL bHistory = TRUE);
- BOOL InsertGhostLine (CCrystalTextView * pSource, int nLine);
+ int nAction = CE_ACTION_UNKNOWN, bool bHistory =true) override;
+#if 0
+ bool InsertGhostLine (CCrystalTextView * pSource, int nLine);
+#endif
- // Undo/Redo
- virtual BOOL Undo (CCrystalTextView * pSource, CPoint & ptCursorPos);
- virtual BOOL Redo (CCrystalTextView * pSource, CPoint & ptCursorPos);
+ virtual void AddUndoRecord (bool bInsert, const CPoint & ptStartPos, const CPoint & ptEndPos,
+ LPCTSTR pszText, size_t cchText, int nActionType = CE_ACTION_UNKNOWN, CDWordArray *paSavedRevisionNumbers = nullptr) override;
+ virtual UndoRecord GetUndoRecord(int nUndoPos) const override;
+ virtual bool UndoInsert(CCrystalTextView * pSource, CPoint & ptCursorPos,
+ const CPoint apparent_ptStartPos, CPoint const apparent_ptEndPos, const UndoRecord & ur) override;
- // Undo grouping
- virtual void BeginUndoGroup (BOOL bMergeWithPrevious = FALSE);
- virtual void FlushUndoGroup (CCrystalTextView * pSource);
+ virtual CDWordArray *CopyRevisionNumbers(int nStartLine, int nEndLine) const override;
+ virtual void RestoreRevisionNumbers(int nStartLine, CDWordArray *paSavedRevisionNumbers) override;
public:
//@{
private:
void RecomputeRealityMapping();
- /**
- Code to set EOL, if the status ghost/real of the line changes
-
- We should call a CCrystalTextBuffer function to add the correct EOL
- (if CCrystalTextBuffer keeps the default EOL for the file)
- */
- void RecomputeEOL(CCrystalTextView * pSource, int nStartLine, int nEndLine);
+ void CountEolAndLastLineLength(const CPoint& ptStartPos, LPCTSTR pszText, size_t cchText, int& nLastLineLength, int& nEol);
/** For debugging purpose */
- void checkFlagsFromReality(BOOL bFlag) const;
+ void checkFlagsFromReality() const;
protected:
virtual void OnNotifyLineHasBeenEdited(int nLine);
DECLARE_MESSAGE_MAP ()
};
-
-/////////////////////////////////////////////////////////////////////////////
-
-//{{AFX_INSERT_LOCATION}}
-// Microsoft Developer Studio will insert additional declarations immediately before the previous line.
-
-
-#endif //__GHOSTTEXTBUFFER_H__
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