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#ifndef _TEXTUNDO_HXX
#define _TEXTUNDO_HXX

#include <svl/undo.hxx>

class TextEngine;

class TextUndoManager : public SfxUndoManager
{
    TextEngine*		mpTextEngine;

protected:

    void			UndoRedoStart();
    void			UndoRedoEnd();

    TextView*		GetView() const { return mpTextEngine->GetActiveView(); }

public:
                    TextUndoManager( TextEngine* pTextEngine );
                    ~TextUndoManager();

    using SfxUndoManager::Undo;
    virtual sal_Bool Undo();
    using SfxUndoManager::Redo;
    virtual sal_Bool Redo();

};

class TextUndo : public SfxUndoAction
{
private:
    TextEngine*			mpTextEngine;

protected:

    TextView*			GetView() const { return mpTextEngine->GetActiveView(); }
    void				SetSelection( const TextSelection& rSel );

    TextDoc*			GetDoc() const { return mpTextEngine->mpDoc; }
    TEParaPortions*		GetTEParaPortions() const { return mpTextEngine->mpTEParaPortions; }

public:
                        TYPEINFO();
                        TextUndo( TextEngine* pTextEngine );
    virtual 			~TextUndo();

    TextEngine*			GetTextEngine() const	{ return mpTextEngine; }

    virtual void		Undo() 		= 0;
    virtual void		Redo()		= 0;

    virtual XubString	GetComment() const;
};

#endif // _TEXTUNDO_HXX

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