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 #ifndef SAL_CONVERTER_CACHE_HXX_ 24 #define SAL_CONVERTER_CACHE_HXX_ 25 26 #include <rtl/tencinfo.h> 27 #include <rtl/textcvt.h> 28 29 #include <unx/salunx.h> 30 31 #include <map> 32 33 extern "C" const char* 34 pGetEncodingName( rtl_TextEncoding nEncoding ); 35 36 // 37 // Cache TextToUnicode and UnicodeToText converter and conversion info which is 38 // used in DrawXYZ routines and in the Event loop 39 // 40 41 class SalConverterCache { 42 43 public: 44 SalConverterCache(); 45 ~SalConverterCache(); 46 Bool EncodingHasChar( 47 rtl_TextEncoding nEncoding, sal_Unicode nChar ); 48 rtl_UnicodeToTextConverter 49 GetU2TConverter( rtl_TextEncoding nEncoding ); 50 rtl_TextToUnicodeConverter 51 GetT2UConverter( rtl_TextEncoding nEncoding ); 52 Bool IsSingleByteEncoding( rtl_TextEncoding nEncoding ); 53 sal_Size ConvertStringUTF16( const sal_Unicode *pText, int nTextLen, 54 sal_Char *pBuffer, sal_Size nBufferSize, 55 rtl_TextEncoding nEncoding); 56 57 static SalConverterCache* 58 GetInstance (); 59 60 private: 61 62 struct ConverterT { 63 rtl_UnicodeToTextConverter mpU2T; 64 rtl_TextToUnicodeConverter mpT2U; 65 Bool mbSingleByteEncoding; 66 Bool mbValid; ConverterTSalConverterCache::ConverterT67 ConverterT() : 68 mpU2T( NULL ), 69 mpT2U( NULL ), 70 mbSingleByteEncoding( False ), 71 mbValid( False ) 72 { 73 } ~ConverterTSalConverterCache::ConverterT74 ~ConverterT() 75 { 76 if( mpU2T ) 77 rtl_destroyUnicodeToTextConverter( mpU2T ); 78 if( mpT2U ) 79 rtl_destroyTextToUnicodeConverter( mpT2U ); 80 } 81 }; 82 83 std::map< rtl_TextEncoding, ConverterT > m_aConverters; 84 }; 85 86 87 88 #endif /* SAL_CONVERTER_CACHE_HXX_ */ 89 90