| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| #ifndef _GRFCACHE_HXX |
| #define _GRFCACHE_HXX |
| |
| #include <tools/list.hxx> |
| #include <vcl/graph.hxx> |
| #include <vcl/timer.hxx> |
| #include <svtools/grfmgr.hxx> |
| |
| // ----------------------- |
| // - GraphicManagerCache - |
| // ----------------------- |
| |
| class GraphicCacheEntry; |
| |
| class GraphicCache |
| { |
| private: |
| |
| GraphicManager& mrMgr; |
| Timer maReleaseTimer; |
| List maGraphicCache; |
| List maDisplayCache; |
| sal_uLong mnReleaseTimeoutSeconds; |
| sal_uLong mnMaxDisplaySize; |
| sal_uLong mnMaxObjDisplaySize; |
| sal_uLong mnUsedDisplaySize; |
| |
| sal_Bool ImplFreeDisplayCacheSpace( sal_uLong nSizeToFree ); |
| GraphicCacheEntry* ImplGetCacheEntry( const GraphicObject& rObj ); |
| |
| |
| DECL_LINK( ReleaseTimeoutHdl, Timer* pTimer ); |
| |
| public: |
| |
| GraphicCache( GraphicManager& rMgr, |
| sal_uLong nDisplayCacheSize = 10000000UL, |
| sal_uLong nMaxObjDisplayCacheSize = 2400000UL ); |
| ~GraphicCache(); |
| |
| public: |
| |
| void AddGraphicObject( const GraphicObject& rObj, Graphic& rSubstitute, |
| const ByteString* pID, const GraphicObject* pCopyObj ); |
| void ReleaseGraphicObject( const GraphicObject& rObj ); |
| |
| void GraphicObjectWasSwappedOut( const GraphicObject& rObj ); |
| sal_Bool FillSwappedGraphicObject( const GraphicObject& rObj, Graphic& rSubstitute ); |
| void GraphicObjectWasSwappedIn( const GraphicObject& rObj ); |
| |
| ByteString GetUniqueID( const GraphicObject& rObj ) const; |
| |
| public: |
| |
| void SetMaxDisplayCacheSize( sal_uLong nNewCacheSize ); |
| sal_uLong GetMaxDisplayCacheSize() const { return mnMaxDisplaySize; }; |
| |
| void SetMaxObjDisplayCacheSize( sal_uLong nNewMaxObjSize, sal_Bool bDestroyGreaterCached = sal_False ); |
| sal_uLong GetMaxObjDisplayCacheSize() const { return mnMaxObjDisplaySize; } |
| |
| sal_uLong GetUsedDisplayCacheSize() const { return mnUsedDisplaySize; } |
| sal_uLong GetFreeDisplayCacheSize() const { return( mnMaxDisplaySize - mnUsedDisplaySize ); } |
| |
| void SetCacheTimeout( sal_uLong nTimeoutSeconds ); |
| sal_uLong GetCacheTimeout() const { return mnReleaseTimeoutSeconds; } |
| |
| void ClearDisplayCache(); |
| sal_Bool IsDisplayCacheable( OutputDevice* pOut, const Point& rPt, const Size& rSz, |
| const GraphicObject& rObj, const GraphicAttr& rAttr ) const; |
| sal_Bool IsInDisplayCache( OutputDevice* pOut, const Point& rPt, const Size& rSz, |
| const GraphicObject& rObj, const GraphicAttr& rAttr ) const; |
| sal_Bool CreateDisplayCacheObj( OutputDevice* pOut, const Point& rPt, const Size& rSz, |
| const GraphicObject& rObj, const GraphicAttr& rAttr, |
| const BitmapEx& rBmpEx ); |
| sal_Bool CreateDisplayCacheObj( OutputDevice* pOut, const Point& rPt, const Size& rSz, |
| const GraphicObject& rObj, const GraphicAttr& rAttr, |
| const GDIMetaFile& rMtf ); |
| sal_Bool DrawDisplayCacheObj( OutputDevice* pOut, const Point& rPt, const Size& rSz, |
| const GraphicObject& rObj, const GraphicAttr& rAttr ); |
| }; |
| |
| #endif // _GRFCACHE_HXX |
