Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : 
      21             : #include "swtypes.hxx"
      22             : #include "swrect.hxx"
      23             : #include "scroll.hxx"
      24             : 
      25             : #define SCROLL_LINE_SIZE 250
      26             : 
      27             : 
      28        1586 : SwScrollbar::SwScrollbar( Window *pWin, sal_Bool bHoriz ) :
      29             :     ScrollBar( pWin,
      30             :     WinBits( WB_3DLOOK | WB_HIDE | ( bHoriz ? WB_HSCROLL : WB_VSCROLL)  ) ),
      31             :     bHori( bHoriz ),
      32             :     bAuto( sal_False ),
      33             :     bVisible(sal_False),
      34        1586 :     bSizeSet(sal_False)
      35             : {
      36             :     // SSA: --- RTL --- no mirroring for horizontal scrollbars
      37        1586 :     if( bHoriz )
      38         793 :         EnableRTL( sal_False );
      39        1586 : }
      40             : 
      41             : 
      42        3168 :  SwScrollbar::~SwScrollbar() {}
      43             : 
      44             : // Will be called after a change of the document size
      45             : // to refresh the range of the scrollbars.
      46             : 
      47        7684 : void SwScrollbar::DocSzChgd( const Size &rSize )
      48             : {
      49        7684 :     aDocSz = rSize;
      50        7684 :     SetRange( Range( 0, bHori ? rSize.Width() : rSize.Height()) );
      51        7684 :     const sal_uLong nVisSize = GetVisibleSize();
      52        7684 :     SetLineSize( SCROLL_LINE_SIZE );
      53        7684 :     SetPageSize( nVisSize * 77 / 100 );
      54        7684 : }
      55             : 
      56             : // Will be called after a change of the visible view section.
      57             : 
      58        3842 : void SwScrollbar::ViewPortChgd( const Rectangle &rRect )
      59             : {
      60             :     long nThumb, nVisible;
      61        3842 :     if( bHori )
      62             :     {
      63        1921 :         nThumb = rRect.Left();
      64        1921 :         nVisible = rRect.GetWidth();
      65             :     }
      66             :     else
      67             :     {
      68        1921 :         nThumb = rRect.Top();
      69        1921 :         nVisible = rRect.GetHeight();
      70             :     }
      71             : 
      72        3842 :     SetVisibleSize( nVisible );
      73        3842 :     DocSzChgd(aDocSz);
      74        3842 :     SetThumbPos( nThumb );
      75        3842 :     if(bAuto)
      76        3734 :         AutoShow();
      77        3842 : }
      78             : 
      79        4721 : void SwScrollbar::ExtendedShow( sal_Bool bSet )
      80             : {
      81        4721 :     bVisible = bSet;
      82        4721 :     if( (!bSet ||  !bAuto) && IsUpdateMode() && bSizeSet)
      83          34 :         ScrollBar::Show(bSet);
      84        4721 : }
      85             : 
      86        3526 : void SwScrollbar::SetPosSizePixel( const Point& rNewPos, const Size& rNewSize )
      87             : {
      88        3526 :     ScrollBar::SetPosSizePixel(rNewPos, rNewSize);
      89        3526 :     bSizeSet = sal_True;
      90        3526 :     if(bVisible)
      91        1557 :         ExtendedShow();
      92             : 
      93        3526 : }
      94             : 
      95        4301 : void SwScrollbar::SetAuto(sal_Bool bSet)
      96             : {
      97        4301 :     if(bAuto != bSet)
      98             :     {
      99        1557 :         bAuto = bSet;
     100             : 
     101             :         // hide autmatically - automatisch versteckt - then show
     102        1557 :         if(!bAuto && bVisible && !ScrollBar::IsVisible())
     103           0 :             ExtendedShow(sal_True);
     104        1557 :         else if(bAuto)
     105        1552 :             AutoShow(); // or hide automatically
     106             :     }
     107        4301 : }
     108             : 
     109        5286 : void SwScrollbar::AutoShow()
     110             : {
     111        5286 :     long nVis = GetVisibleSize();
     112        5286 :     long nLen = GetRange().Len();
     113        5286 :         if( nVis >= nLen - 1)
     114             :         {
     115         184 :             if(ScrollBar::IsVisible())
     116          40 :                 ScrollBar::Show(sal_False);
     117             :         }
     118        5102 :         else if ( !ScrollBar::IsVisible() )
     119             :         {
     120        1556 :             ScrollBar::Show(sal_True);
     121             :         }
     122        5385 : }
     123             : 
     124             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */