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A Simple, Action Based, Undo/Redo Framework

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16 Feb 2013CPOL5 min read 97.7K   1.9K   104  
How to use a simple, action based, undo/redo framework
/*
***************************************************************************

kis v 1

(c) 2006, Florin DUMITRESCU

mailto: fdproxy@gmail.com

$Workfile: KisActionDemoDoc.h $ 

***************************************************************************
*/


#pragma once


#include "_Graphic.h"


class CKisActionDemoDoc : public CDocument
{

	DECLARE_MESSAGE_MAP()
	DECLARE_DYNCREATE(CKisActionDemoDoc)

public:

  enum
  {
    c_MaxUndoRedoTextLen = 48
  };
  kis::SP_ActionExecutor m_spActionExecutor;
  UINT m_ActiveTool;
  C_Drawing m_Drawing;

  CKisActionDemoDoc();
	virtual ~CKisActionDemoDoc();

#ifdef _DEBUG
	virtual void AssertValid() const;
	virtual void Dump(CDumpContext& dc) const;
#endif

  CString _GetUndoText(void);
  CString _GetRedoText(void);
  void OnLButtonDown( class CKisActionDemoView* a_pView );
	virtual BOOL OnNewDocument();
	virtual void Serialize(CArchive& ar);
  afx_msg void OnActionAddRandomSegment();
  afx_msg void OnEditUndo();
  afx_msg void OnEditRedo();
  afx_msg void OnUpdateEditUndo(CCmdUI *pCmdUI);
  afx_msg void OnUpdateEditRedo(CCmdUI *pCmdUI);
  afx_msg void OnActionAddsegment();
  afx_msg void OnUpdateActionAddsegment(CCmdUI *pCmdUI);
  afx_msg void OnActionAddrectangle();
  afx_msg void OnUpdateActionAddrectangle(CCmdUI *pCmdUI);
  afx_msg void OnActionAddellipse();
  afx_msg void OnUpdateActionAddellipse(CCmdUI *pCmdUI);
  afx_msg BOOL OnTipText( UINT id, NMHDR* pNMHDR, LRESULT* pResult );
  afx_msg void OnActionClearDrawing();

};

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License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


Written By
zdf
Romania Romania
Just a humble programmer.

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