// $Revision: 1.4 $
// Copyright (c) 1994-1995 Taligent, Inc.  All rights reserved.

#ifndef TaligentSamples_DISJOINTSELECTSTATES
#define TaligentSamples_DISJOINTSELECTSTATES

#ifndef TaligentSamples_STANDARDSELECTSTATES
#include "StandardSelectStates.h"
#endif

// Similar to set select state, but leaves existing selection and just adds new one to it.

class TDisjointSelectState : public TSetSelectState {
public:
    TaligentTypeExtensionDeclarationsMacro_Abstract(TDisjointSelectState)

                    TDisjointSelectState(MTextRepresentation*, TTextChunkIteratorReference&);
    virtual         ~TDisjointSelectState();
    
    virtual void    Setup(const TInsertionOffset& initialOffset, const TTextArea& initialArea);
    virtual void    Track(const TInsertionOffset& trackingOffset, TTextArea& resultArea);

protected:
    virtual void    SetOriginalArea(const TTextArea&);

private:
    TTextArea       fOriginalArea;
};

// Similar to extend select state, but extends nearest portion of the selection.

class TExtendDisjointSelectState : public TDisjointSelectState {
public:
    TaligentTypeExtensionDeclarationsMacro_Abstract(TExtendDisjointSelectState)

                    TExtendDisjointSelectState(MTextRepresentation*, TTextChunkIteratorReference&);
    virtual         ~TExtendDisjointSelectState();
    
    virtual void    Setup(const TInsertionOffset& initialOffset, const TTextArea& initialArea);
};

#endif // TaligentSamples_DISJOINTSELECTSTATES