/*************************************************************************
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * Copyright 2008 by Sun Microsystems, Inc.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * $RCSfile: scrwin.hxx,v $
 * $Revision: 1.5 $
 *
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * (a copy is included in the LICENSE file that accompanied this code).
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#ifndef _SCRWIN_HXX
#define _SCRWIN_HXX

#include "svtools/svtdllapi.h"

#ifndef _SCRBAR_HXX //autogen
#include <vcl/scrbar.hxx>
#endif

class DataChangedEvent;

// -------------------------
// - ScrollableWindow-Type -
// -------------------------

typedef USHORT ScrollableWindowFlags;

#define SCRWIN_THUMBDRAGGING 1
#define SCRWIN_VCENTER       2
#define SCRWIN_HCENTER       4
#define SCRWIN_DEFAULT       (SCRWIN_THUMBDRAGGING | SCRWIN_VCENTER | SCRWIN_HCENTER)

// --------------------
// - ScrollableWindow -
// --------------------

class SVT_DLLPUBLIC ScrollableWindow: public Window
{
private:
    Point           aPixOffset;         // offset to virtual window (pixel)
    Size            aTotPixSz;          // total size of virtual window (pixel)
    long            nLinePixH;          // size of a line/column (pixel)
    long            nColumnPixW;

    ScrollBar       aVScroll;           // the scrollbars
    ScrollBar       aHScroll;
    ScrollBarBox    aCornerWin;         // window in the bottom right corner
    BOOL            bScrolling:1,       // user controlled scrolling
                    bHandleDragging:1,  // scroll window while dragging
                    bHCenter:1,
                    bVCenter:1;

#ifdef _SVT_SCRWIN_CXX
    SVT_DLLPRIVATE void         ImpInitialize( ScrollableWindowFlags nFlags );
    DECL_DLLPRIVATE_LINK( ScrollHdl, ScrollBar * );
    DECL_DLLPRIVATE_LINK( EndScrollHdl, ScrollBar * );
#endif

public:
                    ScrollableWindow( Window* pParent, WinBits nBits = 0,
                                      ScrollableWindowFlags = SCRWIN_DEFAULT );
                    ScrollableWindow( Window* pParent, const ResId& rId,
                                      ScrollableWindowFlags = SCRWIN_DEFAULT );

    virtual void    Resize();
    virtual void    Command( const CommandEvent& rCEvt );
    virtual void    DataChanged( const DataChangedEvent& rDEvt );

    virtual void    StartScroll();
    virtual void    EndScroll( long nDeltaX, long nDeltaY );

    using OutputDevice::SetMapMode;
    virtual void    SetMapMode( const MapMode& rNewMapMode );
    virtual MapMode GetMapMode() const;

    void            SetTotalSize( const Size& rNewSize );
    Size            GetTotalSize() { return PixelToLogic( aTotPixSz ); }

    void            SetVisibleSize( const Size& rNewSize );
    BOOL            MakeVisible( const Rectangle& rTarget, BOOL bSloppy = FALSE );
    Rectangle       GetVisibleArea() const;

    void            SetLineSize( ULONG nHorz, ULONG nVert );
    using Window::Scroll;
    virtual void    Scroll( long nDeltaX, long nDeltaY, USHORT nFlags = 0 );
    void            ScrollLines( long nLinesX, long nLinesY );
    void            ScrollPages( long nPagesX, ULONG nOverlapX,
                                 long nPagesY, ULONG nOverlapY );

private:
    SVT_DLLPRIVATE Size         GetOutputSizePixel() const;
    SVT_DLLPRIVATE Size         GetOutputSize() const;
};

#endif