vcl/source/window/mnemonicengine.cxx

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  28
  29 #include <vcl/mnemonicengine.hxx>
  30
  31 #include <vcl/i18nhelp.hxx>
  32 #include <vcl/svapp.hxx>
  33 #include <vcl/event.hxx>
  34
  35 //........................................................................
  36 namespace vcl
  37 {
  38 //........................................................................
  39
  40     //====================================================================
  41     //= MnemonicEngine_Data
  42     //====================================================================
  43     struct MnemonicEngine_Data
  44     {
  45         IMnemonicEntryList& rEntryList;
  46
  47         MnemonicEngine_Data( IMnemonicEntryList& _rEntryList )
  48             :rEntryList( _rEntryList )
  49         {
  50         }
  51     };
  52
  53     //--------------------------------------------------------------------
  54     namespace
  55     {
  56         const void* lcl_getEntryForMnemonic( IMnemonicEntryList& _rEntryList, sal_Unicode _cMnemonic, bool& _rbAmbiguous )
  57         {
  58             _rbAmbiguous = false;
  59
  60             const vcl::I18nHelper& rI18nHelper = Application::GetSettings().GetUILocaleI18nHelper();
  61
  62             String sEntryText;
  63             const void* pSearchEntry = _rEntryList.FirstSearchEntry( sEntryText );
  64
  65             const void* pFirstFoundEntry = NULL;
  66             bool bCheckingAmbiguity = false;
  67             const void* pStartedWith = pSearchEntry;
  68             while ( pSearchEntry )
  69             {
  70                 if ( rI18nHelper.MatchMnemonic( sEntryText, _cMnemonic ) )
  71                 {
  72                     if ( bCheckingAmbiguity )
  73                     {
  74                         // that's the second (at least) entry with this mnemonic
  75                         _rbAmbiguous = true;
  76                         return pFirstFoundEntry;
  77                     }
  78
  79                     pFirstFoundEntry = pSearchEntry;
  80                     bCheckingAmbiguity = true;
  81                 }
  82
  83                 pSearchEntry = _rEntryList.NextSearchEntry( pSearchEntry, sEntryText );
  84                 if ( pSearchEntry == pStartedWith )
  85                     break;
  86             }
  87
  88             return pFirstFoundEntry;
  89         }
  90     }
  91
  92     //====================================================================
  93     //= MnemonicEngine
  94     //====================================================================
  95     //--------------------------------------------------------------------
  96     MnemonicEngine::MnemonicEngine( IMnemonicEntryList& _rEntryList )
  97         :m_pData( new MnemonicEngine_Data( _rEntryList ) )
  98     {
  99     }
 100
 101     //--------------------------------------------------------------------
 102     bool MnemonicEngine::HandleKeyEvent( const KeyEvent& _rKEvt )
 103     {
 104         sal_Bool bAccelKey = _rKEvt.GetKeyCode().IsMod2();
 105         if ( !bAccelKey )
 106             return false;
 107
 108         sal_Unicode cChar = _rKEvt.GetCharCode();
 109         bool bAmbiguous = false;
 110         const void* pEntry = lcl_getEntryForMnemonic( m_pData->rEntryList, cChar, bAmbiguous );
 111         if ( !pEntry )
 112             return false;
 113
 114         m_pData->rEntryList.SelectSearchEntry( pEntry );
 115         if ( !bAmbiguous )
 116             m_pData->rEntryList.ExecuteSearchEntry( pEntry );
 117
 118         // handled
 119         return true;
 120     }
 121
 122     //--------------------------------------------------------------------
 123     MnemonicEngine::~MnemonicEngine()
 124     {
 125     }
 126
 127 //........................................................................
 128 } // namespace vcl
 129 //........................................................................
 130
 131 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */