dbaccess/source/ui/misc/propertystorage.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 "propertystorage.hxx"
  21
  22 #include <svl/itemset.hxx>
  23 #include <svl/stritem.hxx>
  24 #include <svl/eitem.hxx>
  25
  26 #include <osl/diagnose.h>
  27
  28 #include <cassert>
  29 #include <memory>
  30
  31 namespace dbaui
  32 {
  33
  34     using ::com::sun::star::uno::Any;
  35
  36     // helper
  37     namespace
  38     {
  39         template < class ITEMTYPE, class UNOTYPE >
  40         class ItemAdapter
  41         {
  42         public:
  43             static bool trySet( SfxItemSet& _rSet, sal_uInt16 _nItemId, const Any& _rValue )
  44             {
  45                 const SfxPoolItem& rItem( _rSet.Get( _nItemId ) );
  46                 const ITEMTYPE* pTypedItem = dynamic_cast< const ITEMTYPE* >( &rItem );
  47                 if ( !pTypedItem )
  48                     return false;
  49
  50                 UNOTYPE aValue( pTypedItem->GetValue() );
  51                 OSL_VERIFY( _rValue >>= aValue );
  52                 // TODO: one could throw an IllegalArgumentException here - finally, this method
  53                 // is (to be) used from within an XPropertySet::setPropertyValue implementation,
  54                 // where this would be the appropriate reaction on wrong value types
  55                 ITEMTYPE* pCloneItem = dynamic_cast< ITEMTYPE* >( pTypedItem->Clone() );
  56                 if(!pCloneItem)
  57                 {
  58                     return false;
  59                 }
  60                 std::unique_ptr< ITEMTYPE > pClone( pCloneItem);
  61                 assert(pClone.get());
  62                 pClone->SetValue( aValue );
  63                 _rSet.Put( *pClone );
  64                 return true;
  65             }
  66
  67             static bool tryGet( const SfxPoolItem& _rItem, Any& _out_rValue )
  68             {
  69                 const ITEMTYPE* pTypedItem = dynamic_cast< const ITEMTYPE* >( &_rItem );
  70                 if ( !pTypedItem )
  71                     return false;
  72
  73                 _out_rValue <<= UNOTYPE( pTypedItem->GetValue() );
  74                 return true;
  75             }
  76         };
  77     }
  78
  79     // SetItemPropertyStorage
  80     void SetItemPropertyStorage::getPropertyValue( Any& _out_rValue ) const
  81     {
  82         const SfxPoolItem& rItem( m_rItemSet.Get( m_nItemID ) );
  83
  84         // try some known item types
  85         if  (   ItemAdapter< SfxBoolItem, bool >::tryGet( rItem, _out_rValue )
  86             ||  ItemAdapter< SfxStringItem, OUString >::tryGet( rItem, _out_rValue )
  87             )
  88             return;
  89
  90         OSL_FAIL( "SetItemPropertyStorage::getPropertyValue: unsupported item type!" );
  91     }
  92
  93     void SetItemPropertyStorage::setPropertyValue( const Any& _rValue )
  94     {
  95         // try some known item types
  96         if  (   ItemAdapter< SfxBoolItem, bool >::trySet( m_rItemSet, m_nItemID, _rValue )
  97             ||  ItemAdapter< SfxStringItem, OUString >::trySet( m_rItemSet, m_nItemID, _rValue )
  98             )
  99             return;
 100
 101         OSL_FAIL( "SetItemPropertyStorage::setPropertyValue: unsupported item type!" );
 102     }
 103
 104 } // namespace dbaui
 105
 106 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */