/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

/*

 * This file is part of the LibreOffice project.

 *

 * This Source Code Form is subject to the terms of the Mozilla Public

 * 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

 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .

 */

#include <scroll.hxx>

#define SCROLL_LINE_SIZE 250

SwScrollbar::SwScrollbar(vcl::Window *pWin, bool bHoriz)

    : ScrollAdaptor(pWin, bHoriz)

    , m_bAuto(false)

    , m_bVisible(false)

    , m_bSizeSet(false)

{

    m_xScrollBar->show();

    // No mirroring for horizontal scrollbars

    if (bHoriz)

        m_xScrollBar->set_direction(false);

}

Unexecuted instantiation: SwScrollbar::SwScrollbar(vcl::Window*, bool)

Unexecuted instantiation: SwScrollbar::SwScrollbar(vcl::Window*, bool)

// Will be called after a change of the document size

// to refresh the range of the scrollbars.

void SwScrollbar::DocSzChgd( const Size &rSize )

{

    m_aDocSz = rSize;

    SetRange( Range( 0, m_bHori ? rSize.Width() : rSize.Height()) );

    const tools::Long nVisSize = GetVisibleSize();

    SetLineSize( SCROLL_LINE_SIZE );

    SetPageSize( nVisSize * 77 / 100 );

}

// Will be called after a change of the visible view section.

void SwScrollbar::ViewPortChgd( const tools::Rectangle &rRect )

{

    tools::Long nThumb, nVisible;

    if( m_bHori )

    {

        nThumb = rRect.Left();

        nVisible = rRect.GetWidth();

    }

    else

    {

        nThumb = rRect.Top();

        nVisible = rRect.GetHeight();

    }

    SetVisibleSize( nVisible );

    DocSzChgd(m_aDocSz);

    SetThumbPos( nThumb );

    if(m_bAuto)

        AutoShow();

}

void SwScrollbar::ExtendedShow( bool bSet )

{

    m_bVisible = bSet;

    if( (!bSet ||  !m_bAuto) && IsUpdateMode() && m_bSizeSet)

    {

        ScrollAdaptor::Show(bSet);

    }

}

void SwScrollbar::SetPosSizePixel( const Point& rNewPos, const Size& rNewSize )

{

    ScrollAdaptor::SetPosSizePixel(rNewPos, rNewSize);

    m_bSizeSet = true;

    if(m_bVisible)

        ExtendedShow();

}

void SwScrollbar::SetAuto(bool bSet)

{

    if(m_bAuto != bSet)

    {

        m_bAuto = bSet;

        // hide automatically - then show

        if(!m_bAuto && m_bVisible && !ScrollAdaptor::IsVisible())

            ExtendedShow();

        else if(m_bAuto)

            AutoShow(); // or hide automatically

    }

}

void SwScrollbar::AutoShow()

{

    tools::Long nVis = GetVisibleSize();

    tools::Long nLen = GetRange().Len();

    if (nVis >= nLen - 1)

    {

        if (ScrollAdaptor::IsVisible())

            ScrollAdaptor::Show(false);

    }

    else if (!ScrollAdaptor::IsVisible())

    {

        ScrollAdaptor::Show();

    }

}

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */