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#ifndef SC_UNDOBASE_HXX
#define SC_UNDOBASE_HXX

#include <bf_svtools/undo.hxx>

#include "global.hxx"
namespace binfilter {

class ScDocument;
class ScDocShell;
class SdrUndoAction;

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

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

    virtual BOOL    Merge( SfxUndoAction *pNextAction );

protected:
    ScDocShell*     pDocShell;
    SfxUndoAction*  pDetectiveUndo;

};

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

enum ScBlockUndoMode { SC_UNDO_SIMPLE, SC_UNDO_MANUALHEIGHT, SC_UNDO_AUTOHEIGHT };

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

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

//  void            BeginRedo();

};

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



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

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


} //namespace binfilter
#endif

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