116 lines
3.1 KiB
C++
116 lines
3.1 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <scroll.hxx>
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#define SCROLL_LINE_SIZE 250
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SwScrollbar::SwScrollbar(vcl::Window *pWin, bool bHoriz)
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: ScrollAdaptor(pWin, bHoriz)
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, m_bAuto(false)
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, m_bVisible(false)
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, m_bSizeSet(false)
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{
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m_xScrollBar->show();
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// No mirroring for horizontal scrollbars
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if (bHoriz)
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m_xScrollBar->set_direction(false);
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}
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// Will be called after a change of the document size
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// to refresh the range of the scrollbars.
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void SwScrollbar::DocSzChgd( const Size &rSize )
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{
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m_aDocSz = rSize;
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SetRange( Range( 0, m_bHori ? rSize.Width() : rSize.Height()) );
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const tools::Long nVisSize = GetVisibleSize();
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SetLineSize( SCROLL_LINE_SIZE );
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SetPageSize( nVisSize * 77 / 100 );
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}
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// Will be called after a change of the visible view section.
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void SwScrollbar::ViewPortChgd( const tools::Rectangle &rRect )
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{
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tools::Long nThumb, nVisible;
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if( m_bHori )
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{
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nThumb = rRect.Left();
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nVisible = rRect.GetWidth();
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}
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else
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{
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nThumb = rRect.Top();
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nVisible = rRect.GetHeight();
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}
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SetVisibleSize( nVisible );
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DocSzChgd(m_aDocSz);
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SetThumbPos( nThumb );
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if(m_bAuto)
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AutoShow();
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}
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void SwScrollbar::ExtendedShow( bool bSet )
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{
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m_bVisible = bSet;
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if( (!bSet || !m_bAuto) && IsUpdateMode() && m_bSizeSet)
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{
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ScrollAdaptor::Show(bSet);
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}
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}
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void SwScrollbar::SetPosSizePixel( const Point& rNewPos, const Size& rNewSize )
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{
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ScrollAdaptor::SetPosSizePixel(rNewPos, rNewSize);
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m_bSizeSet = true;
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if(m_bVisible)
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ExtendedShow();
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}
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void SwScrollbar::SetAuto(bool bSet)
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{
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if(m_bAuto != bSet)
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{
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m_bAuto = bSet;
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// hide automatically - then show
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if(!m_bAuto && m_bVisible && !ScrollAdaptor::IsVisible())
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ExtendedShow();
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else if(m_bAuto)
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AutoShow(); // or hide automatically
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}
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}
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void SwScrollbar::AutoShow()
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{
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tools::Long nVis = GetVisibleSize();
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tools::Long nLen = GetRange().Len();
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if (nVis >= nLen - 1)
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{
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if (ScrollAdaptor::IsVisible())
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ScrollAdaptor::Show(false);
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}
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else if (!ScrollAdaptor::IsVisible())
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{
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ScrollAdaptor::Show();
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}
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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