svtools/source/items/poolcach.cxx

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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_svtools.hxx"
  33
  34 #include <limits.h>
  35
  36 #ifndef GCC
  37 #endif
  38
  39 #include <svtools/itempool.hxx>
  40 #include <svtools/itemset.hxx>
  41 #include "poolcach.hxx"
  42
  43 // STATIC DATA -----------------------------------------------------------
  44
  45 DBG_NAME(SfxItemPoolCache)
  46
  47
  48 //------------------------------------------------------------------------
  49
  50 struct SfxItemModifyImpl
  51 {
  52     const SfxSetItem  *pOrigItem;
  53     SfxSetItem            *pPoolItem;
  54 };
  55
  56 SV_DECL_VARARR( SfxItemModifyArr_Impl, SfxItemModifyImpl, 8, 8 )
  57 SV_IMPL_VARARR( SfxItemModifyArr_Impl, SfxItemModifyImpl);
  58
  59 //------------------------------------------------------------------------
  60
  61 SfxItemPoolCache::SfxItemPoolCache( SfxItemPool *pItemPool,
  62                                     const SfxPoolItem *pPutItem ):
  63     pPool(pItemPool),
  64     pCache(new SfxItemModifyArr_Impl),
  65     pSetToPut( 0 ),
  66     pItemToPut( &pItemPool->Put(*pPutItem) )
  67 {
  68     DBG_CTOR(SfxItemPoolCache, 0);
  69     DBG_ASSERT(pItemPool, "kein Pool angegeben");
  70 }
  71
  72 //------------------------------------------------------------------------
  73
  74 SfxItemPoolCache::SfxItemPoolCache( SfxItemPool *pItemPool,
  75                                     const SfxItemSet *pPutSet ):
  76     pPool(pItemPool),
  77     pCache(new SfxItemModifyArr_Impl),
  78     pSetToPut( pPutSet ),
  79     pItemToPut( 0 )
  80 {
  81     DBG_CTOR(SfxItemPoolCache, 0);
  82     DBG_ASSERT(pItemPool, "kein Pool angegeben");
  83 }
  84
  85 //------------------------------------------------------------------------
  86
  87 SfxItemPoolCache::~SfxItemPoolCache()
  88 {
  89     DBG_DTOR(SfxItemPoolCache, 0);
  90     for ( USHORT nPos = 0; nPos < pCache->Count(); ++nPos ) {
  91         pPool->Remove( *(*pCache)[nPos].pPoolItem );
  92         pPool->Remove( *(*pCache)[nPos].pOrigItem );
  93     }
  94     delete pCache; pCache = 0;
  95
  96     if ( pItemToPut )
  97         pPool->Remove( *pItemToPut );
  98 }
  99
 100 //------------------------------------------------------------------------
 101
 102 const SfxSetItem& SfxItemPoolCache::ApplyTo( const SfxSetItem &rOrigItem, BOOL bNew )
 103 {
 104     DBG_CHKTHIS(SfxItemPoolCache, 0);
 105     DBG_ASSERT( pPool == rOrigItem.GetItemSet().GetPool(), "invalid Pool" );
 106     DBG_ASSERT( IsDefaultItem( &rOrigItem ) || IsPooledItem( &rOrigItem ),
 107                 "original not in pool" );
 108
 109     // Suchen, ob diese Transformations schon einmal vorkam
 110     for ( USHORT nPos = 0; nPos < pCache->Count(); ++nPos )
 111     {
 112         SfxItemModifyImpl &rMapEntry = (*pCache)[nPos];
 113         if ( rMapEntry.pOrigItem == &rOrigItem )
 114         {
 115             // aendert sich ueberhaupt etwas?
 116             if ( rMapEntry.pPoolItem != &rOrigItem )
 117             {
 118                 rMapEntry.pPoolItem->AddRef(2); // einen davon fuer den Cache
 119                 if ( bNew )
 120                     pPool->Put( rOrigItem );    //! AddRef??
 121             }
 122             return *rMapEntry.pPoolItem;
 123         }
 124     }
 125
 126     // die neue Attributierung in einem neuen Set eintragen
 127     SfxSetItem *pNewItem = (SfxSetItem *)rOrigItem.Clone();
 128     if ( pItemToPut )
 129     {
 130         pNewItem->GetItemSet().PutDirect( *pItemToPut );
 131         DBG_ASSERT( &pNewItem->GetItemSet().Get( pItemToPut->Which() ) == pItemToPut,
 132                     "wrong item in temporary set" );
 133     }
 134     else
 135         pNewItem->GetItemSet().Put( *pSetToPut );
 136     const SfxSetItem* pNewPoolItem = (const SfxSetItem*) &pPool->Put( *pNewItem );
 137     DBG_ASSERT( pNewPoolItem != pNewItem, "Pool: rein == raus?" );
 138     delete pNewItem;
 139
 140     // Refernzzaehler anpassen, je einen davon fuer den Cache
 141     pNewPoolItem->AddRef( pNewPoolItem != &rOrigItem ? 2 : 1 );
 142     if ( bNew )
 143         pPool->Put( rOrigItem );        //! AddRef??
 144
 145     // die Transformation im Cache eintragen
 146     SfxItemModifyImpl aModify;
 147     aModify.pOrigItem = &rOrigItem;
 148     aModify.pPoolItem = (SfxSetItem*) pNewPoolItem;
 149     pCache->Insert( aModify, pCache->Count() );
 150
 151     DBG_ASSERT( !pItemToPut ||
 152                 &pNewPoolItem->GetItemSet().Get( pItemToPut->Which() ) == pItemToPut,
 153                 "wrong item in resulting set" );
 154
 155     return *pNewPoolItem;
 156 }
 157
 158
 159