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/* -*- 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 ) :
ScrollBar( pWin,
WinBits( WB_3DLOOK | WB_HIDE | ( bHoriz ? WB_HSCROLL : WB_VSCROLL) ) ),
bHori( bHoriz ),
bAuto( false ),
bVisible(false),
bSizeSet(false)
{
// No mirroring for horizontal scrollbars
if( bHoriz )
EnableRTL( false );
}
SwScrollbar::~SwScrollbar() {}
// Will be called after a change of the document size
// to refresh the range of the scrollbars.
void SwScrollbar::DocSzChgd( const Size &rSize )
{
aDocSz = rSize;
SetRange( Range( 0, bHori ? rSize.Width() : rSize.Height()) );
const sal_uLong 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 )
{
long nThumb, nVisible;
if( bHori )
{
nThumb = rRect.Left();
nVisible = rRect.GetWidth();
}
else
{
nThumb = rRect.Top();
nVisible = rRect.GetHeight();
}
SetVisibleSize( nVisible );
DocSzChgd(aDocSz);
SetThumbPos( nThumb );
if(bAuto)
AutoShow();
}
void SwScrollbar::ExtendedShow( bool bSet )
{
bVisible = bSet;
if( (!bSet || !bAuto) && IsUpdateMode() && bSizeSet)
ScrollBar::Show(bSet);
}
void SwScrollbar::SetPosSizePixel( const Point& rNewPos, const Size& rNewSize )
{
ScrollBar::SetPosSizePixel(rNewPos, rNewSize);
bSizeSet = true;
if(bVisible)
ExtendedShow();
}
void SwScrollbar::SetAuto(bool bSet)
{
if(bAuto != bSet)
{
bAuto = bSet;
// hide automatically - then show
if(!bAuto && bVisible && !ScrollBar::IsVisible())
ExtendedShow();
else if(bAuto)
AutoShow(); // or hide automatically
}
}
void SwScrollbar::AutoShow()
{
long nVis = GetVisibleSize();
long nLen = GetRange().Len();
if( nVis >= nLen - 1)
{
if(ScrollBar::IsVisible())
ScrollBar::Show(false);
}
else if ( !ScrollBar::IsVisible() )
{
ScrollBar::Show();
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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