1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 24 #ifndef _PSPRINT_FONTCACHE_HXX 25 #define _PSPRINT_FONTCACHE_HXX 26 27 #include "vcl/dllapi.h" 28 #include "vcl/fontmanager.hxx" 29 30 #include "tools/string.hxx" 31 32 #include <hash_map> 33 34 namespace psp 35 { 36 37 class VCL_PLUGIN_PUBLIC FontCache 38 { 39 struct FontDir; 40 friend class FontDir; 41 struct FontFile; 42 friend class FontFile; 43 44 typedef std::list< PrintFontManager::PrintFont* > FontCacheEntry; 45 struct FontFile 46 { 47 FontCacheEntry m_aEntry; 48 }; 49 50 typedef std::hash_map< ::rtl::OString, FontFile, ::rtl::OStringHash > FontDirMap; 51 struct FontDir 52 { 53 sal_Int64 m_nTimestamp; 54 bool m_bNoFiles; 55 bool m_bUserOverrideOnly; 56 FontDirMap m_aEntries; 57 58 FontDir() : m_nTimestamp(0), m_bNoFiles(false), m_bUserOverrideOnly( false ) {} 59 }; 60 61 typedef std::hash_map< int, FontDir > FontCacheData; 62 FontCacheData m_aCache; 63 String m_aCacheFile; 64 bool m_bDoFlush; 65 66 void read(); 67 void clearCache(); 68 69 void copyPrintFont( const PrintFontManager::PrintFont* pFrom, PrintFontManager::PrintFont* pTo ) const; 70 bool equalsPrintFont( const PrintFontManager::PrintFont* pLeft, PrintFontManager::PrintFont* pRight ) const; 71 PrintFontManager::PrintFont* clonePrintFont( const PrintFontManager::PrintFont* pFont ) const; 72 73 void createCacheDir( int nDirID ); 74 public: 75 FontCache(); 76 ~FontCache(); 77 78 bool getFontCacheFile( int nDirID, const rtl::OString& rFile, std::list< PrintFontManager::PrintFont* >& rNewFonts ) const; 79 void updateFontCacheEntry( const PrintFontManager::PrintFont*, bool bFlush ); 80 void markEmptyDir( int nDirID, bool bNoFiles = true ); 81 82 // returns false for non cached directory 83 // a cached but empty directory will return true but not append anything 84 bool listDirectory( const rtl::OString& rDir, std::list< PrintFontManager::PrintFont* >& rNewFonts ) const; 85 // returns true for directoris that contain only user overridden fonts 86 bool scanAdditionalFiles( const rtl::OString& rDir ); 87 88 void flush(); 89 90 void updateDirTimestamp( int nDirID ); 91 }; 92 93 } // namespace psp 94 95 #endif // _PSPRINT_FONTCACHE_HXX 96