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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : #include <unotools/transliterationwrapper.hxx>
21 : #include <tools/debug.hxx>
22 : #include <i18nlangtag/languagetag.hxx>
23 :
24 : #include <com/sun/star/i18n/TransliterationModulesExtra.hpp>
25 : #include <com/sun/star/i18n/Transliteration.hpp>
26 :
27 : using namespace ::com::sun::star::lang;
28 : using namespace ::com::sun::star::i18n;
29 : using namespace ::com::sun::star::uno;
30 : using namespace ::utl;
31 :
32 0 : TransliterationWrapper::TransliterationWrapper(
33 : const Reference< XComponentContext > & rxContext,
34 : sal_uInt32 nTyp )
35 : : xTrans( Transliteration::create(rxContext) ),
36 0 : aLanguageTag( LANGUAGE_SYSTEM ), nType( nTyp ), bFirstCall( true )
37 : {
38 0 : }
39 :
40 0 : TransliterationWrapper::~TransliterationWrapper()
41 : {
42 0 : }
43 :
44 0 : OUString TransliterationWrapper::transliterate(const OUString& rStr, sal_uInt16 nLang,
45 : sal_Int32 nStart, sal_Int32 nLen,
46 : Sequence <sal_Int32>* pOffset )
47 : {
48 0 : OUString sRet;
49 0 : if( xTrans.is() )
50 : {
51 : try
52 : {
53 0 : loadModuleIfNeeded( nLang );
54 :
55 0 : if ( pOffset )
56 0 : sRet = xTrans->transliterate( rStr, nStart, nLen, *pOffset );
57 : else
58 0 : sRet = xTrans->transliterateString2String( rStr, nStart, nLen);
59 : }
60 0 : catch( Exception& )
61 : {
62 : SAL_WARN( "unotools.i18n", "transliterate: Exception caught!" );
63 : }
64 : }
65 0 : return sRet;
66 : }
67 :
68 0 : OUString TransliterationWrapper::transliterate( const OUString& rStr,
69 : sal_Int32 nStart, sal_Int32 nLen,
70 : Sequence <sal_Int32>* pOffset ) const
71 : {
72 0 : OUString sRet( rStr );
73 0 : if( xTrans.is() )
74 : {
75 : try
76 : {
77 0 : if ( pOffset )
78 0 : sRet = xTrans->transliterate( rStr, nStart, nLen, *pOffset );
79 : else
80 0 : sRet = xTrans->transliterateString2String( rStr, nStart, nLen);
81 : }
82 0 : catch( Exception& )
83 : {
84 : SAL_WARN( "unotools.i18n", "transliterate: Exception caught!" );
85 : }
86 : }
87 0 : return sRet;
88 : }
89 :
90 0 : bool TransliterationWrapper::needLanguageForTheMode() const
91 : {
92 0 : return TransliterationModules_UPPERCASE_LOWERCASE == nType ||
93 0 : TransliterationModules_LOWERCASE_UPPERCASE == nType ||
94 0 : TransliterationModules_IGNORE_CASE == nType ||
95 0 : (sal_uInt32) TransliterationModulesExtra::SENTENCE_CASE == (sal_uInt32) nType ||
96 0 : (sal_uInt32) TransliterationModulesExtra::TITLE_CASE == (sal_uInt32) nType ||
97 0 : (sal_uInt32) TransliterationModulesExtra::TOGGLE_CASE == (sal_uInt32) nType;
98 : }
99 :
100 0 : void TransliterationWrapper::setLanguageLocaleImpl( sal_uInt16 nLang )
101 : {
102 0 : if( LANGUAGE_NONE == nLang )
103 0 : nLang = LANGUAGE_SYSTEM;
104 0 : aLanguageTag.reset( nLang);
105 0 : }
106 :
107 0 : void TransliterationWrapper::loadModuleIfNeeded( sal_uInt16 nLang )
108 : {
109 0 : bool bLoad = bFirstCall;
110 0 : bFirstCall = false;
111 :
112 0 : if( static_cast< sal_Int32 >(nType) == TransliterationModulesExtra::SENTENCE_CASE )
113 : {
114 0 : if( bLoad )
115 0 : loadModuleByImplName(OUString("SENTENCE_CASE"), nLang);
116 : }
117 0 : else if( static_cast< sal_Int32 >(nType) == TransliterationModulesExtra::TITLE_CASE )
118 : {
119 0 : if( bLoad )
120 0 : loadModuleByImplName(OUString("TITLE_CASE"), nLang);
121 : }
122 0 : else if( static_cast< sal_Int32 >(nType) == TransliterationModulesExtra::TOGGLE_CASE )
123 : {
124 0 : if( bLoad )
125 0 : loadModuleByImplName(OUString("TOGGLE_CASE"), nLang);
126 : }
127 : else
128 : {
129 0 : if( aLanguageTag.getLanguageType() != nLang )
130 : {
131 0 : setLanguageLocaleImpl( nLang );
132 0 : if( !bLoad )
133 0 : bLoad = needLanguageForTheMode();
134 : }
135 0 : if( bLoad )
136 0 : loadModuleImpl();
137 : }
138 0 : }
139 :
140 0 : void TransliterationWrapper::loadModuleImpl() const
141 : {
142 0 : if ( bFirstCall )
143 0 : ((TransliterationWrapper*)this)->setLanguageLocaleImpl( LANGUAGE_SYSTEM );
144 :
145 : try
146 : {
147 0 : if ( xTrans.is() )
148 0 : xTrans->loadModule( (TransliterationModules)nType, aLanguageTag.getLocale() );
149 : }
150 0 : catch ( const Exception& e )
151 : {
152 : SAL_WARN( "unotools.i18n", "loadModuleImpl: Exception caught " << e.Message );
153 : }
154 :
155 0 : bFirstCall = false;
156 0 : }
157 :
158 0 : void TransliterationWrapper::loadModuleByImplName(const OUString& rModuleName,
159 : sal_uInt16 nLang )
160 : {
161 : try
162 : {
163 0 : setLanguageLocaleImpl( nLang );
164 0 : com::sun::star::lang::Locale aLocale( aLanguageTag.getLocale());
165 : // Reset LanguageTag, so the next call to loadModuleIfNeeded() forces
166 : // new settings.
167 0 : aLanguageTag.reset( LANGUAGE_DONTKNOW);
168 0 : if ( xTrans.is() )
169 0 : xTrans->loadModuleByImplName( rModuleName, aLocale );
170 : }
171 0 : catch ( const Exception& e )
172 : {
173 : SAL_WARN( "unotools.i18n", "loadModuleByImplName: Exception caught " << e.Message );
174 : }
175 :
176 0 : bFirstCall = false;
177 0 : }
178 :
179 0 : bool TransliterationWrapper::equals(
180 : const OUString& rStr1, sal_Int32 nPos1, sal_Int32 nCount1, sal_Int32& nMatch1,
181 : const OUString& rStr2, sal_Int32 nPos2, sal_Int32 nCount2, sal_Int32& nMatch2 ) const
182 : {
183 : try
184 : {
185 0 : if( bFirstCall )
186 0 : loadModuleImpl();
187 0 : if ( xTrans.is() )
188 0 : return xTrans->equals( rStr1, nPos1, nCount1, nMatch1, rStr2, nPos2, nCount2, nMatch2 );
189 : }
190 0 : catch ( const Exception& e )
191 : {
192 : SAL_WARN( "unotools.i18n", "equals: Exception caught " << e.Message );
193 : }
194 0 : return false;
195 : }
196 :
197 0 : sal_Int32 TransliterationWrapper::compareString( const OUString& rStr1, const OUString& rStr2 ) const
198 : {
199 : try
200 : {
201 0 : if( bFirstCall )
202 0 : loadModuleImpl();
203 0 : if ( xTrans.is() )
204 0 : return xTrans->compareString( rStr1, rStr2 );
205 : }
206 0 : catch (const Exception& e)
207 : {
208 : SAL_WARN( "unotools.i18n", "compareString: Exception caught " << e.Message );
209 : }
210 0 : return 0;
211 : }
212 :
213 : // --- helpers --------------------------------------------------------
214 :
215 0 : bool TransliterationWrapper::isEqual( const OUString& rStr1, const OUString& rStr2 ) const
216 : {
217 : sal_Int32 nMatch1, nMatch2;
218 : bool bMatch = equals(
219 : rStr1, 0, rStr1.getLength(), nMatch1,
220 0 : rStr2, 0, rStr2.getLength(), nMatch2 );
221 0 : return bMatch;
222 : }
223 :
224 0 : bool TransliterationWrapper::isMatch( const OUString& rStr1, const OUString& rStr2 ) const
225 : {
226 : sal_Int32 nMatch1, nMatch2;
227 : equals(
228 : rStr1, 0, rStr1.getLength(), nMatch1,
229 0 : rStr2, 0, rStr2.getLength(), nMatch2 );
230 0 : return (nMatch1 <= nMatch2) && (nMatch1 == rStr1.getLength());
231 : }
232 :
233 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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