1 /************************************************************************* 2 * 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * Copyright 2000, 2010 Oracle and/or its affiliates. 6 * 7 * OpenOffice.org - a multi-platform office productivity suite 8 * 9 * This file is part of OpenOffice.org. 10 * 11 * OpenOffice.org is free software: you can redistribute it and/or modify 12 * it under the terms of the GNU Lesser General Public License version 3 13 * only, as published by the Free Software Foundation. 14 * 15 * OpenOffice.org is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU Lesser General Public License version 3 for more details 19 * (a copy is included in the LICENSE file that accompanied this code). 20 * 21 * You should have received a copy of the GNU Lesser General Public License 22 * version 3 along with OpenOffice.org. If not, see 23 * <http://www.openoffice.org/license.html> 24 * for a copy of the LGPLv3 License. 25 * 26 ************************************************************************/ 27 28 // MARKER(update_precomp.py): autogen include statement, do not remove 29 #include "precompiled_sd.hxx" 30 31 #include "tools/IconCache.hxx" 32 33 #include "sdresid.hxx" 34 #include <hash_map> 35 #include <osl/doublecheckedlocking.h> 36 #include <osl/getglobalmutex.hxx> 37 38 namespace sd { 39 40 //===== IconCache::Implementation ============================================= 41 42 class IconCache::Implementation 43 { 44 private: 45 friend class IconCache; 46 47 /** This pointer holds a valid reference from first time that 48 IconCache::Instance() is called to the end of the sd module when the 49 cache is destroyed from SdGlobalResourceContainer. 50 */ 51 static IconCache* mpInstance; 52 53 typedef ::std::hash_map<sal_uInt16,Image> ImageContainer; 54 ImageContainer maContainer; 55 56 Image GetIcon (sal_uInt16 nResourceId); 57 }; 58 59 IconCache* IconCache::Implementation::mpInstance = NULL; 60 61 62 63 Image IconCache::Implementation::GetIcon (sal_uInt16 nResourceId) 64 { 65 Image aResult; 66 ImageContainer::iterator iImage; 67 iImage = maContainer.find (nResourceId); 68 if (iImage == maContainer.end()) 69 { 70 aResult = Image(BitmapEx(SdResId(nResourceId))); 71 maContainer[nResourceId] = aResult; 72 } 73 else 74 aResult = iImage->second; 75 return aResult; 76 } 77 78 79 80 81 //===== IconCache ============================================================= 82 83 //static 84 IconCache& IconCache::Instance (void) 85 { 86 if (Implementation::mpInstance == NULL) 87 { 88 ::osl::GetGlobalMutex aMutexFunctor; 89 ::osl::MutexGuard aGuard (aMutexFunctor()); 90 if (Implementation::mpInstance == NULL) 91 { 92 IconCache* pCache = new IconCache (); 93 SdGlobalResourceContainer::Instance().AddResource ( 94 ::std::auto_ptr<SdGlobalResource>(pCache)); 95 OSL_DOUBLE_CHECKED_LOCKING_MEMORY_BARRIER(); 96 Implementation::mpInstance = pCache; 97 } 98 } 99 else 100 { 101 OSL_DOUBLE_CHECKED_LOCKING_MEMORY_BARRIER(); 102 } 103 104 DBG_ASSERT(Implementation::mpInstance!=NULL, 105 "IconCache::Instance(): instance is NULL"); 106 return *Implementation::mpInstance; 107 } 108 109 110 111 112 Image IconCache::GetIcon (sal_uInt16 nResourceId) 113 { 114 return mpImpl->GetIcon (nResourceId); 115 } 116 117 118 119 120 IconCache::IconCache (void) 121 : mpImpl (new Implementation()) 122 { 123 } 124 125 126 127 128 IconCache::~IconCache (void) 129 { 130 // empty 131 } 132 133 } // end of namespace sd 134