/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
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 */

#ifndef INCLUDED_TOOLKIT_AWT_SCROLLABLEDIALOG_HXX
#define INCLUDED_TOOLKIT_AWT_SCROLLABLEDIALOG_HXX

#include <vcl/dialog.hxx>
#include <vcl/scrbar.hxx>


namespace toolkit
{
    class ScrollableInterface
    {
    public:
        virtual ~ScrollableInterface() {}
        virtual void    SetScrollWidth( long nWidth ) = 0;
        virtual void    SetScrollHeight( long nHeight ) = 0;
        virtual void    SetScrollLeft( long nLeft ) = 0;
        virtual void    SetScrollTop( long Top ) = 0;
    };

  template < class T >
    class ScrollableWrapper : public T, public ScrollableInterface
    {
        VclPtr<ScrollBar>  maHScrollBar;
        VclPtr<ScrollBar>  maVScrollBar;
        Size               maScrollArea;
        bool               mbHasHoriBar;
        bool               mbHasVertBar;
        Point              mnScrollPos;
        long               mnScrWidth;

    public:
        enum ScrollBarVisibility { None, Vert, Hori, Both };
    private:
        ScrollBarVisibility maScrollVis;
        void    lcl_Scroll( long nX, long nY );
    public:
        ScrollableWrapper( vcl::Window* pParent, WinBits nStyle = WB_STDDIALOG, Dialog::InitFlag eFlag = Dialog::InitFlag::Default );
        virtual ~ScrollableWrapper() override;
        virtual void dispose() override;
        virtual void    SetScrollWidth( long nWidth ) override;
        virtual void    SetScrollHeight( long nHeight ) override;
        virtual void    SetScrollLeft( long nLeft ) override;
        virtual void    SetScrollTop( long Top ) override;

        void setScrollVisibility( ScrollBarVisibility rState );
        DECL_LINK_TYPED( ScrollBarHdl, ScrollBar*, void );
        virtual void ResetScrollBars();
        // Window
        virtual void Resize() override;
    };

} // namespacetoolkit


#endif // INCLUDED_TOOLKIT_AWT_SCROLLABLEDIALOG_HXX

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