dbaccess/source/ui/control/ScrollHelper.cxx

   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 #include "ScrollHelper.hxx"
  21 #include <tools/debug.hxx>
  22
  23 #define LISTBOX_SCROLLING_AREA  12
  24 namespace dbaui
  25 {
  26
  27     OScrollHelper::OScrollHelper()
  28     {
  29     }
  30     OScrollHelper::~OScrollHelper()
  31     {
  32
  33     }
  34     void OScrollHelper::scroll(const Point& _rPoint, const Size& _rOutputSize)
  35     {
  36         // Scrolling Areas
  37         Rectangle aScrollArea( Point(0, _rOutputSize.Height() - LISTBOX_SCROLLING_AREA),
  38                                      Size(_rOutputSize.Width(), LISTBOX_SCROLLING_AREA) );
  39
  40         Link<> aToCall;
  41         // if pointer in bottom area begin scroll
  42         if( aScrollArea.IsInside(_rPoint) )
  43             aToCall = m_aUpScroll;
  44         else
  45         {
  46             aScrollArea.SetPos(Point(0,0));
  47             // if pointer in top area begin scroll
  48             if( aScrollArea.IsInside(_rPoint) )
  49                 aToCall = m_aDownScroll;
  50         }
  51         if ( aToCall.IsSet() )
  52             aToCall.Call( NULL );
  53     }
  54 }
  55
  56 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */