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#ifndef SC_UNDOBASE_HXX
#define SC_UNDOBASE_HXX

#include <svl/undo.hxx>
#include "global.hxx"
#include "address.hxx"
#include "docsh.hxx"

class ScDocument;
class ScDocShell;
class SdrUndoAction;
class ScRefUndoData;
class ScDBData;

//----------------------------------------------------------------------------

class ScSimpleUndo: public SfxUndoAction
{
public:
					TYPEINFO();
					ScSimpleUndo( ScDocShell* pDocSh );
	virtual 		~ScSimpleUndo();

	virtual sal_Bool	Merge( SfxUndoAction *pNextAction );

protected:
	ScDocShell*		pDocShell;
	SfxUndoAction*	pDetectiveUndo;

    bool            IsPaintLocked() const { return pDocShell->IsPaintLocked(); }

    bool            SetViewMarkData( const ScMarkData& rMarkData );

	void			BeginUndo();
	void			EndUndo();
	void			BeginRedo();
	void			EndRedo();

	static void		ShowTable( SCTAB nTab );
	static void		ShowTable( const ScRange& rRange );
};

//----------------------------------------------------------------------------

enum ScBlockUndoMode { SC_UNDO_SIMPLE, SC_UNDO_MANUALHEIGHT, SC_UNDO_AUTOHEIGHT };

class ScBlockUndo: public ScSimpleUndo
{
public:
					TYPEINFO();
					ScBlockUndo( ScDocShell* pDocSh, const ScRange& rRange,
								 ScBlockUndoMode eBlockMode );
	virtual 		~ScBlockUndo();

protected:
	ScRange			aBlockRange;
	SdrUndoAction*	pDrawUndo;
	ScBlockUndoMode	eMode;

	void			BeginUndo();
	void			EndUndo();
//	void			BeginRedo();
	void			EndRedo();

	sal_Bool			AdjustHeight();
	void			ShowBlock();
};

//----------------------------------------------------------------------------

// for functions that act on a database range - takes care of the unnamed database range
// (collected separately, before the undo action, for showing dialogs etc.)

class ScDBFuncUndo: public ScSimpleUndo
{
    ScDBData*       pAutoDBRange;
    ScRange         aOriginalRange;
    SdrUndoAction*  mpDrawUndo;

public:
                    TYPEINFO();
                    ScDBFuncUndo( ScDocShell* pDocSh, const ScRange& rOriginal, SdrUndoAction* pDrawUndo = 0 );
    virtual         ~ScDBFuncUndo();

    void            SetDrawUndoAction( SdrUndoAction* pDrawUndo );

    void            BeginUndo();
    void            EndUndo();
    void            BeginRedo();
    void            EndRedo();
};

//----------------------------------------------------------------------------

enum ScMoveUndoMode { SC_UNDO_REFFIRST, SC_UNDO_REFLAST };

class ScMoveUndo: public ScSimpleUndo				// mit Referenzen
{
public:
					TYPEINFO();
					ScMoveUndo( ScDocShell* pDocSh,
								ScDocument* pRefDoc, ScRefUndoData* pRefData,
								ScMoveUndoMode eRefMode );
	virtual			~ScMoveUndo();

protected:
	SdrUndoAction*	pDrawUndo;
	ScDocument*		pRefUndoDoc;
	ScRefUndoData*	pRefUndoData;
	ScMoveUndoMode	eMode;

	void			BeginUndo();
	void			EndUndo();
//	void			BeginRedo();
//	void			EndRedo();

private:
	void			UndoRef();
};

//----------------------------------------------------------------------------

class ScUndoWrapper: public SfxUndoAction           // for manual merging of actions
{
    SfxUndoAction*  pWrappedUndo;

public:
                            TYPEINFO();
                            ScUndoWrapper( SfxUndoAction* pUndo );
    virtual                 ~ScUndoWrapper();

    SfxUndoAction*          GetWrappedUndo()        { return pWrappedUndo; }
    void                    ForgetWrappedUndo();

    virtual sal_Bool            IsLinked();
    virtual void            SetLinked( sal_Bool bIsLinked );
    virtual void            Undo();
    virtual void            Redo();
    virtual void            Repeat(SfxRepeatTarget& rTarget);
    virtual sal_Bool            CanRepeat(SfxRepeatTarget& rTarget) const;
    virtual sal_Bool            Merge( SfxUndoAction *pNextAction );
    virtual String          GetComment() const;
    virtual String          GetRepeatComment(SfxRepeatTarget&) const;
    virtual sal_uInt16          GetId() const;
};


#endif