diff options
Diffstat (limited to 'goodies/source/graphic/grfcache.cxx')
| -rw-r--r-- | goodies/source/graphic/grfcache.cxx | 124 |
1 files changed, 113 insertions, 11 deletions
diff --git a/goodies/source/graphic/grfcache.cxx b/goodies/source/graphic/grfcache.cxx index 2f512d3224a0..3b4ea7e6e45b 100644 --- a/goodies/source/graphic/grfcache.cxx +++ b/goodies/source/graphic/grfcache.cxx @@ -2,9 +2,9 @@ * * $RCSfile: grfcache.cxx,v $ * - * $Revision: 1.9 $ + * $Revision: 1.10 $ * - * last change: $Author: ka $ $Date: 2001-04-10 16:06:27 $ + * last change: $Author: ka $ $Date: 2001-05-08 09:09:18 $ * * The Contents of this file are made available subject to the terms of * either of the following licenses @@ -59,12 +59,19 @@ * ************************************************************************/ +#include <vos/timer.hxx> #include <tools/debug.hxx> #include <vcl/outdev.hxx> #include <vcl/poly.hxx> #include "grfcache.hxx" // ----------- +// - Defines - +// ----------- + +#define RELEASE_TIMEOUT 10000 + +// ----------- // - statics - // ----------- @@ -437,6 +444,7 @@ class GraphicDisplayCacheEntry { private: + ::vos::TTimeValue maReleaseTime; const GraphicCacheEntry* mpRefCacheEntry; GDIMetaFile* mpMtf; BitmapEx* mpBmpEx; @@ -458,7 +466,9 @@ public: mpRefCacheEntry( pRefCacheEntry ), mpMtf( NULL ), mpBmpEx( new BitmapEx( rBmpEx ) ), maAttr( rAttr ), maOutSizePix( pOut->LogicToPixel( rSz ) ), - mnCacheSize( GetNeededSize( pOut, rPt, rSz, rObj, rAttr ) ) {} + mnCacheSize( GetNeededSize( pOut, rPt, rSz, rObj, rAttr ) ) + { + } GraphicDisplayCacheEntry( const GraphicCacheEntry* pRefCacheEntry, OutputDevice* pOut, const Point& rPt, const Size& rSz, @@ -467,7 +477,10 @@ public: mpRefCacheEntry( pRefCacheEntry ), mpMtf( new GDIMetaFile( rMtf ) ), mpBmpEx( NULL ), maAttr( rAttr ), maOutSizePix( pOut->LogicToPixel( rSz ) ), - mnCacheSize( GetNeededSize( pOut, rPt, rSz, rObj, rAttr ) ) {} + mnCacheSize( GetNeededSize( pOut, rPt, rSz, rObj, rAttr ) ) + { + } + ~GraphicDisplayCacheEntry(); @@ -476,6 +489,9 @@ public: const ULONG GetCacheSize() const { return mnCacheSize; } const GraphicCacheEntry* GetReferencedCacheEntry() const { return mpRefCacheEntry; } + void SetReleaseTime( const ::vos::TTimeValue& rReleaseTime ) { maReleaseTime = rReleaseTime; } + const ::vos::TTimeValue& GetReleaseTime() const { return maReleaseTime; } + BOOL Matches( OutputDevice* pOut, const Point& rPtPixel, const Size& rSzPixel, const GraphicCacheEntry* pCacheEntry, const GraphicAttr& rAttr ) const { @@ -558,11 +574,15 @@ void GraphicDisplayCacheEntry::Draw( OutputDevice* pOut, const Point& rPt, const // ----------------------- GraphicCache::GraphicCache( GraphicManager& rMgr, ULONG nDisplayCacheSize, ULONG nMaxObjDisplayCacheSize ) : - mrMgr ( rMgr ), - mnMaxDisplaySize ( nDisplayCacheSize ), - mnMaxObjDisplaySize ( nMaxObjDisplayCacheSize ), - mnUsedDisplaySize ( 0UL ) + mrMgr ( rMgr ), + mnMaxDisplaySize ( nDisplayCacheSize ), + mnMaxObjDisplaySize ( nMaxObjDisplayCacheSize ), + mnUsedDisplaySize ( 0UL ), + mnReleaseTimeoutSeconds ( 0UL ) { + maReleaseTimer.SetTimeoutHdl( LINK( this, GraphicCache, ReleaseTimeoutHdl ) ); + maReleaseTimer.SetTimeout( RELEASE_TIMEOUT ); + maReleaseTimer.Start(); } // ----------------------------------------------------------------------------- @@ -743,6 +763,29 @@ void GraphicCache::SetMaxObjDisplayCacheSize( ULONG nNewMaxObjSize, BOOL bDestro // ----------------------------------------------------------------------------- +void GraphicCache::SetCacheTimeout( ULONG nTimeoutSeconds ) +{ + if( mnReleaseTimeoutSeconds != nTimeoutSeconds ) + { + GraphicDisplayCacheEntry* pDisplayEntry = (GraphicDisplayCacheEntry*) maDisplayCache.First(); + ::vos::TTimeValue aReleaseTime; + + if( ( mnReleaseTimeoutSeconds = nTimeoutSeconds ) != 0 ) + { + osl_getSystemTime( &aReleaseTime ); + aReleaseTime.addTime( ::vos::TTimeValue( nTimeoutSeconds, 0 ) ); + } + + while( pDisplayEntry ) + { + pDisplayEntry->SetReleaseTime( aReleaseTime ); + pDisplayEntry = (GraphicDisplayCacheEntry*) maDisplayCache.Next(); + } + } +} + +// ----------------------------------------------------------------------------- + void GraphicCache::ClearDisplayCache() { for( void* pObj = maDisplayCache.First(); pObj; pObj = maDisplayCache.Next() ) @@ -816,8 +859,16 @@ BOOL GraphicCache::CreateDisplayCacheObj( OutputDevice* pOut, const Point& rPt, GraphicDisplayCacheEntry* pNewEntry = new GraphicDisplayCacheEntry( ImplGetCacheEntry( rObj ), pOut, rPt, rSz, rObj, rAttr, rBmpEx ); + if( GetCacheTimeout() ) + { + ::vos::TTimeValue aReleaseTime; - maDisplayCache.Insert( pNewEntry, (ULONG) 0 ); + osl_getSystemTime( &aReleaseTime ); + aReleaseTime.addTime( ::vos::TTimeValue( GetCacheTimeout(), 0 ) ); + pNewEntry->SetReleaseTime( aReleaseTime ); + } + + maDisplayCache.Insert( pNewEntry, LIST_APPEND ); mnUsedDisplaySize += pNewEntry->GetCacheSize(); bRet = TRUE; } @@ -842,8 +893,16 @@ BOOL GraphicCache::CreateDisplayCacheObj( OutputDevice* pOut, const Point& rPt, GraphicDisplayCacheEntry* pNewEntry = new GraphicDisplayCacheEntry( ImplGetCacheEntry( rObj ), pOut, rPt, rSz, rObj, rAttr, rMtf ); + if( GetCacheTimeout() ) + { + ::vos::TTimeValue aReleaseTime; + + osl_getSystemTime( &aReleaseTime ); + aReleaseTime.addTime( ::vos::TTimeValue( GetCacheTimeout(), 0 ) ); + pNewEntry->SetReleaseTime( aReleaseTime ); + } - maDisplayCache.Insert( pNewEntry, (ULONG) 0 ); + maDisplayCache.Insert( pNewEntry, LIST_APPEND ); mnUsedDisplaySize += pNewEntry->GetCacheSize(); bRet = TRUE; } @@ -866,8 +925,18 @@ BOOL GraphicCache::DrawDisplayCacheObj( OutputDevice* pOut, const Point& rPt, co { if( pDisplayCacheEntry->Matches( pOut, aPtPixel, aSzPixel, pCacheEntry, rAttr ) ) { + ::vos::TTimeValue aReleaseTime; + // put found object at last used position maDisplayCache.Insert( maDisplayCache.Remove( pDisplayCacheEntry ), LIST_APPEND ); + + if( GetCacheTimeout() ) + { + osl_getSystemTime( &aReleaseTime ); + aReleaseTime.addTime( ::vos::TTimeValue( GetCacheTimeout(), 0 ) ); + } + + pDisplayCacheEntry->SetReleaseTime( aReleaseTime ); bRet = TRUE; } else @@ -886,10 +955,13 @@ BOOL GraphicCache::ImplFreeDisplayCacheSpace( ULONG nSizeToFree ) { ULONG nFreedSize = 0UL; - if( nSizeToFree && ( nSizeToFree <= mnMaxDisplaySize ) ) + if( nSizeToFree ) { void* pObj = maDisplayCache.First(); + if( nSizeToFree > mnUsedDisplaySize ) + nSizeToFree = mnUsedDisplaySize; + while( pObj ) { GraphicDisplayCacheEntry* pCacheObj = (GraphicDisplayCacheEntry*) pObj; @@ -922,3 +994,33 @@ GraphicCacheEntry* GraphicCache::ImplGetCacheEntry( const GraphicObject& rObj ) return pRet; } +// ----------------------------------------------------------------------------- + +IMPL_LINK( GraphicCache, ReleaseTimeoutHdl, Timer*, pTimer ) +{ + pTimer->Stop(); + + ::vos::TTimeValue aCurTime; + GraphicDisplayCacheEntry* pDisplayEntry = (GraphicDisplayCacheEntry*) maDisplayCache.First(); + + osl_getSystemTime( &aCurTime ); + + while( pDisplayEntry ) + { + const ::vos::TTimeValue& rReleaseTime = pDisplayEntry->GetReleaseTime(); + + if( !rReleaseTime.isEmpty() && ( rReleaseTime < aCurTime ) ) + { + mnUsedDisplaySize -= pDisplayEntry->GetCacheSize(); + maDisplayCache.Remove( pDisplayEntry ); + delete pDisplayEntry; + pDisplayEntry = (GraphicDisplayCacheEntry*) maDisplayCache.GetCurObject(); + } + else + pDisplayEntry = (GraphicDisplayCacheEntry*) maDisplayCache.Next(); + } + + pTimer->Start(); + + return 0; +} |