accessibility/inc/helper/listboxhelper.hxx

   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 #pragma once
  21
  22 #include <helper/IComboListBoxHelper.hxx>
  23 #include <com/sun/star/datatransfer/clipboard/XClipboard.hpp>
  24 #include <tools/gen.hxx>
  25
  26
  27 // globals
  28
  29
  30 const sal_Int32 DEFAULT_INDEX_IN_PARENT = -1;
  31
  32
  33
  34
  35 template< class T > class VCLListBoxHelper final : public ::accessibility::IComboListBoxHelper
  36 {
  37 private:
  38     T&  m_aComboListBox;
  39
  40 public:
  41     VCLListBoxHelper( T& _pListBox ) :
  42         m_aComboListBox( _pListBox ){}
  43
  44
  45     virtual OUString        GetEntry( sal_Int32  nPos ) const override
  46     {
  47         return m_aComboListBox.GetEntry( nPos );
  48     }
  49
  50     virtual tools::Rectangle       GetDropDownPosSizePixel() const override
  51     {
  52         tools::Rectangle aTemp = m_aComboListBox.GetWindowExtentsRelative(nullptr);
  53         tools::Rectangle aRet = m_aComboListBox.GetDropDownPosSizePixel();
  54         aRet.Move(aTemp.Left(), aTemp.Top());
  55         return aRet;
  56     }
  57
  58     virtual tools::Rectangle       GetBoundingRectangle( sal_uInt16 nItem ) const override
  59     {
  60         tools::Rectangle aRect;
  61         if ( m_aComboListBox.IsInDropDown() && IsEntryVisible( nItem ) )
  62         {
  63             tools::Rectangle aTemp = m_aComboListBox.GetDropDownPosSizePixel();
  64             Size aSize = aTemp.GetSize();
  65             sal_uInt16 nLineCount = m_aComboListBox.GetDisplayLineCount();
  66             assert(nLineCount && "div-by-zero");
  67             aSize.setHeight( aSize.Height() / nLineCount );
  68             Point aTopLeft = aTemp.TopLeft();
  69             aTopLeft.AdjustY( aSize.Height() * ( nItem - m_aComboListBox.GetTopEntry() ) );
  70             aRect = tools::Rectangle( aTopLeft, aSize );
  71         }
  72         else
  73             aRect = m_aComboListBox.GetBoundingRectangle( nItem );
  74         return aRect;
  75     }
  76
  77     virtual tools::Rectangle       GetWindowExtentsRelative() override
  78     {
  79         return m_aComboListBox.GetWindowExtentsRelative( nullptr );
  80     }
  81
  82     virtual bool            IsEnabled() const override
  83     {
  84         return m_aComboListBox.IsEnabled();
  85     }
  86
  87     virtual bool            IsEntryVisible( sal_Int32  nPos ) const override
  88     {
  89         sal_Int32  nTopEntry = m_aComboListBox.GetTopEntry();
  90         sal_uInt16 nLines = m_aComboListBox.GetDisplayLineCount();
  91         return ( nPos >= nTopEntry && nPos < ( nTopEntry + nLines ) );
  92     }
  93
  94     virtual sal_uInt16      GetDisplayLineCount() const override
  95     {
  96         return m_aComboListBox.GetDisplayLineCount();
  97     }
  98
  99     virtual void            GetMaxVisColumnsAndLines( sal_uInt16& rnCols, sal_uInt16& rnLines ) const override
 100     {
 101         m_aComboListBox.GetMaxVisColumnsAndLines(rnCols,rnLines);
 102     }
 103
 104     virtual WinBits         GetStyle() const override
 105     {
 106         return m_aComboListBox.GetStyle();
 107     }
 108
 109     virtual bool            IsMultiSelectionEnabled() const override
 110     {
 111         return m_aComboListBox.IsMultiSelectionEnabled();
 112     }
 113
 114     virtual sal_Int32       GetTopEntry() const override
 115     {
 116         return m_aComboListBox.GetTopEntry();
 117     }
 118
 119     virtual bool            IsEntryPosSelected( sal_Int32  nPos ) const override
 120     {
 121         return m_aComboListBox.IsEntryPosSelected(nPos);
 122     }
 123
 124     virtual sal_Int32       GetEntryCount() const override
 125     {
 126         return m_aComboListBox.GetEntryCount();
 127     }
 128
 129     virtual void            Select() override
 130     {
 131         m_aComboListBox.Select();
 132     }
 133
 134     virtual void            SelectEntryPos( sal_Int32  nPos, bool bSelect = true ) override
 135     {
 136         m_aComboListBox.SelectEntryPos(nPos,bSelect);
 137     }
 138
 139     virtual sal_Int32       GetSelectedEntryCount() const override
 140     {
 141         return m_aComboListBox.GetSelectedEntryCount();
 142     }
 143
 144     virtual void    SetNoSelection() override
 145     {
 146         m_aComboListBox.SetNoSelection();
 147     }
 148
 149     virtual sal_Int32       GetSelectedEntryPos( sal_Int32  nSelIndex = 0 ) const override
 150     {
 151         return m_aComboListBox.GetSelectedEntryPos(nSelIndex);
 152     }
 153
 154     virtual bool            IsInDropDown() const override
 155     {
 156         return m_aComboListBox.IsInDropDown();
 157     }
 158
 159     virtual tools::Rectangle GetEntryCharacterBounds( const sal_Int32 _nEntryPos, const sal_Int32 _nCharacterIndex ) const override
 160     {
 161         tools::Rectangle aRect;
 162
 163         Pair aEntryCharacterRange = m_aComboListBox.GetLineStartEnd( _nEntryPos );
 164         if ( aEntryCharacterRange.A() + _nCharacterIndex <= aEntryCharacterRange.B() )
 165         {
 166             tools::Long nIndex = aEntryCharacterRange.A() + _nCharacterIndex;
 167             aRect = m_aComboListBox.GetCharacterBounds( nIndex );
 168         }
 169         return aRect;
 170     }
 171
 172     tools::Long GetIndexForPoint( const Point& rPoint, sal_Int32& nPos ) const override
 173     {
 174         return m_aComboListBox.GetIndexForPoint( rPoint, nPos );
 175     }
 176
 177     css::uno::Reference< css::datatransfer::clipboard::XClipboard >
 178         GetClipboard() override
 179     {
 180         return m_aComboListBox.GetClipboard();
 181     }
 182
 183 };
 184
 185
 186 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */