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#ifndef _SV_MOREBTN_HXX
#define _SV_MOREBTN_HXX

#include <vcl/sv.h>
#include <vcl/dllapi.h>
#include <vcl/mapmod.hxx>
#include <vcl/button.hxx>

struct ImplMoreButtonData;

// --------------
// - MoreButton -
// --------------

class VCL_DLLPUBLIC MoreButton : public PushButton
{
private:
    ImplMoreButtonData* mpMBData;
    ULONG               mnDelta;
    MapUnit             meUnit;
    BOOL                mbState;

    // Copy assignment is forbidden and not implemented.
    SAL_DLLPRIVATE      MoreButton( const MoreButton & );
    SAL_DLLPRIVATE      MoreButton& operator=( const MoreButton & );
    SAL_DLLPRIVATE void ShowState();

protected:
    using Window::ImplInit;
    SAL_DLLPRIVATE void ImplInit( Window* pParent, WinBits nStyle );
    SAL_DLLPRIVATE void ImplLoadRes( const ResId& rResId );

public:
                        MoreButton( Window* pParent, WinBits nStyle = 0 );
                        MoreButton( Window* pParent, const ResId& rResId );
                        ~MoreButton();

    void                Click();

    void                AddWindow( Window* pWindow );
    void                RemoveWindow( Window* pWindow );

    void                SetDelta( ULONG nNewDelta ) { mnDelta = nNewDelta; }
    ULONG               GetDelta() const { return mnDelta; }

    void                SetMapUnit( MapUnit eNewUnit = MAP_PIXEL ) { meUnit = eNewUnit; }
    MapUnit             GetMapUnit() const { return meUnit; }

    using PushButton::SetState;
    void                SetState( BOOL bNewState = TRUE );
    BOOL                GetState() const { return mbState; }

    void                SetText( const XubString& rNewText );
    XubString           GetText() const;

    void                SetMoreText( const XubString& rNewText );
    void                SetLessText( const XubString& rNewText );
    XubString           GetMoreText() const;
    XubString           GetLessText() const;
};

inline void MoreButton::SetState( BOOL bNewState )
{
    if ( mbState != bNewState )
        Click();
}

#endif  // _SV_MOREBTN_HXX