diff options
Diffstat (limited to 'svx/source/editeng/editdoc2.cxx')
| -rw-r--r-- | svx/source/editeng/editdoc2.cxx | 50 |
1 files changed, 48 insertions, 2 deletions
diff --git a/svx/source/editeng/editdoc2.cxx b/svx/source/editeng/editdoc2.cxx index 2b0967e173a8..030dfb1ad615 100644 --- a/svx/source/editeng/editdoc2.cxx +++ b/svx/source/editeng/editdoc2.cxx @@ -324,10 +324,42 @@ void ParaPortion::CorrectValuesBehindLastFormattedLine( USHORT nLastFormattedLin DBG_ASSERT( aLineList[ aLineList.Count()-1 ]->GetEnd() == pNode->Len(), "CorrectLines: Ende stimmt nicht!" ); } - // ------------------------------------------------------------------------- +// Shared reverse lookup acceleration pieces ... + +static USHORT FastGetPos( const VoidPtr *pPtrArray, USHORT nPtrArrayLen, + VoidPtr pPtr, USHORT &rLastPos ) +{ + // Through certain filter code-paths we do a lot of appends, which in + // turn call GetPos - creating some N^2 nightmares. If we have a + // non-trivially large list, do a few checks from the end first. + if( rLastPos > 16 ) + { + USHORT nEnd; + if (rLastPos > nPtrArrayLen - 2) + nEnd = nPtrArrayLen; + else + nEnd = rLastPos + 2; + + for( USHORT nIdx = rLastPos - 2; nIdx < nEnd; nIdx++ ) + { + if( pPtrArray[ nIdx ] == pPtr ) + { + rLastPos = nIdx; + return nIdx; + } + } + } + // The world's lamest linear search from svarray ... + for( USHORT nIdx = 0; nIdx < nPtrArrayLen; nIdx++ ) + if (pPtrArray[ nIdx ] == pPtr ) + return rLastPos = nIdx; + return USHRT_MAX; +} + +// ------------------------------------------------------------------------- // class ParaPortionList // ------------------------------------------------------------------------- -ParaPortionList::ParaPortionList() +ParaPortionList::ParaPortionList() : nLastCache( 0 ) { } @@ -336,6 +368,20 @@ ParaPortionList::~ParaPortionList() Reset(); } +USHORT ParaPortionList::GetPos( const ParaPortionPtr &rPtr ) const +{ + return FastGetPos( reinterpret_cast<const VoidPtr *>( GetData() ), + Count(), static_cast<VoidPtr>( rPtr ), + ((ParaPortionList *)this)->nLastCache ); +} + +USHORT ContentList::GetPos( const ContentNodePtr &rPtr ) const +{ + return FastGetPos( reinterpret_cast<const VoidPtr *>( GetData() ), + Count(), static_cast<VoidPtr>( rPtr ), + ((ContentList *)this)->nLastCache ); +} + void ParaPortionList::Reset() { for ( USHORT nPortion = 0; nPortion < Count(); nPortion++ ) |