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/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * Copyright 2000, 2010 Oracle and/or its affiliates.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/

#ifndef _SV_SLIDER_HXX
#define _SV_SLIDER_HXX

#include <vcl/sv.h>
#include <vcl/dllapi.h>
#include <vcl/ctrl.hxx>
// for enum ScrollType
#include <vcl/scrbar.hxx>

// ----------
// - Slider -
// ----------

class VCL_DLLPUBLIC Slider : public Control
{
private:
    Rectangle       maChannel1Rect;
    Rectangle       maChannel2Rect;
    Rectangle       maThumbRect;
    long            mnStartPos;
    long            mnMouseOff;
    long            mnThumbPixOffset;
    long            mnThumbPixRange;
    long            mnThumbPixPos;
    long            mnChannelPixOffset;
    long            mnChannelPixRange;
    long            mnChannelPixTop;
    long            mnChannelPixBottom;
    long            mnMinRange;
    long            mnMaxRange;
    long            mnThumbPos;
    long            mnLineSize;
    long            mnPageSize;
    long            mnDelta;
    USHORT          mnDragDraw;
    USHORT          mnStateFlags;
    ScrollType      meScrollType;
    BOOL            mbCalcSize;
    BOOL            mbFullDrag;
    Link            maSlideHdl;
    Link            maEndSlideHdl;

    using Control::ImplInitSettings;
    using Window::ImplInit;
    SAL_DLLPRIVATE void ImplInit( Window* pParent, WinBits nStyle );
    SAL_DLLPRIVATE void ImplLoadRes( const ResId& rResId );
    SAL_DLLPRIVATE void ImplInitSettings();
    SAL_DLLPRIVATE void ImplUpdateRects( BOOL bUpdate = TRUE );
    SAL_DLLPRIVATE long ImplCalcThumbPos( long nPixPos );
    SAL_DLLPRIVATE long ImplCalcThumbPosPix( long nPos );
    SAL_DLLPRIVATE void ImplCalc( BOOL bUpdate = TRUE );
    SAL_DLLPRIVATE void ImplDraw( USHORT nDrawFlags );
    SAL_DLLPRIVATE BOOL ImplIsPageUp( const Point& rPos );
    SAL_DLLPRIVATE BOOL ImplIsPageDown( const Point& rPos );
    SAL_DLLPRIVATE long ImplSlide( long nNewPos, BOOL bCallEndSlide );
    SAL_DLLPRIVATE long ImplDoAction( BOOL bCallEndSlide );
    SAL_DLLPRIVATE void ImplDoMouseAction( const Point& rPos, BOOL bCallAction = TRUE );
    SAL_DLLPRIVATE long ImplDoSlide( long nNewPos );
    SAL_DLLPRIVATE long ImplDoSlideAction( ScrollType eScrollType );

public:
                    Slider( Window* pParent, WinBits nStyle = WB_HORZ );
                    Slider( Window* pParent, const ResId& rResId );

    virtual void    MouseButtonDown( const MouseEvent& rMEvt );
    virtual void    MouseButtonUp( const MouseEvent& rMEvt );
    virtual void    Tracking( const TrackingEvent& rTEvt );
    virtual void    KeyInput( const KeyEvent& rKEvt );
    virtual void    Paint( const Rectangle& rRect );
    virtual void    Resize();
    virtual void    RequestHelp( const HelpEvent& rHEvt );
    virtual void    StateChanged( StateChangedType nType );
    virtual void    DataChanged( const DataChangedEvent& rDCEvt );

    virtual void    Slide();
    virtual void    EndSlide();

    void            EnableDrag( BOOL bEnable = TRUE )
                        { mbFullDrag = bEnable; }
    BOOL            IsDragEnabled() const { return mbFullDrag; }

    void            SetRangeMin( long nNewRange );
    long            GetRangeMin() const { return mnMinRange; }
    void            SetRangeMax( long nNewRange );
    long            GetRangeMax() const { return mnMaxRange; }
    void            SetRange( const Range& rRange );
    Range           GetRange() const { return Range( GetRangeMin(), GetRangeMax() ); }
    void            SetThumbPos( long nThumbPos );
    long            GetThumbPos() const { return mnThumbPos; }
    void            SetLineSize( long nNewSize ) { mnLineSize = nNewSize; }
    long            GetLineSize() const { return mnLineSize; }
    void            SetPageSize( long nNewSize ) { mnPageSize = nNewSize; }
    long            GetPageSize() const { return mnPageSize; }

    long            GetDelta() const { return mnDelta; }

    Size            CalcWindowSizePixel();

    void            SetSlideHdl( const Link& rLink ) { maSlideHdl = rLink; }
    const Link&     GetSlideHdl() const { return maSlideHdl;    }
    void            SetEndSlideHdl( const Link& rLink ) { maEndSlideHdl = rLink; }
    const Link&     GetEndSlideHdl() const { return maEndSlideHdl; }
};

#endif // _SV_SLIDER_HXX