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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 :
21 : #include <unotools/transliterationwrapper.hxx>
22 : #include <tools/debug.hxx>
23 : #include <i18npool/languagetag.hxx>
24 :
25 : #include "instance.hxx"
26 : #include <com/sun/star/i18n/TransliterationModulesExtra.hpp>
27 : #include <com/sun/star/i18n/Transliteration.hpp>
28 :
29 : using namespace ::com::sun::star::lang;
30 : using namespace ::com::sun::star::i18n;
31 : using namespace ::com::sun::star::uno;
32 : using namespace ::utl;
33 :
34 43 : TransliterationWrapper::TransliterationWrapper(
35 : const Reference< XComponentContext > & rxContext,
36 : sal_uInt32 nTyp )
37 : : xTrans( Transliteration::create(rxContext) ),
38 43 : aLanguageTag( LANGUAGE_SYSTEM ), nType( nTyp ), bFirstCall( sal_True )
39 : {
40 43 : }
41 :
42 :
43 26 : TransliterationWrapper::~TransliterationWrapper()
44 : {
45 26 : }
46 :
47 :
48 19 : String TransliterationWrapper::transliterate(
49 : const String& rStr, sal_uInt16 nLang,
50 : xub_StrLen nStart, xub_StrLen nLen,
51 : Sequence <sal_Int32>* pOffset )
52 : {
53 19 : String sRet;
54 19 : if( xTrans.is() )
55 : {
56 : try
57 : {
58 19 : loadModuleIfNeeded( nLang );
59 :
60 19 : if ( pOffset )
61 19 : sRet = xTrans->transliterate( rStr, nStart, nLen, *pOffset );
62 : else
63 0 : sRet = xTrans->transliterateString2String( rStr, nStart, nLen);
64 : }
65 0 : catch( Exception& )
66 : {
67 : SAL_WARN( "unotools.i18n", "transliterate: Exception caught!" );
68 : }
69 : }
70 19 : return sRet;
71 : }
72 :
73 :
74 0 : String TransliterationWrapper::transliterate(
75 : const String& rStr,
76 : xub_StrLen nStart, xub_StrLen nLen,
77 : Sequence <sal_Int32>* pOffset ) const
78 : {
79 0 : String sRet( rStr );
80 0 : if( xTrans.is() )
81 : {
82 : try
83 : {
84 0 : if ( pOffset )
85 0 : sRet = xTrans->transliterate( rStr, nStart, nLen, *pOffset );
86 : else
87 0 : sRet = xTrans->transliterateString2String( rStr, nStart, nLen);
88 : }
89 0 : catch( Exception& )
90 : {
91 : SAL_WARN( "unotools.i18n", "transliterate: Exception caught!" );
92 : }
93 : }
94 0 : return sRet;
95 : }
96 :
97 0 : sal_Bool TransliterationWrapper::needLanguageForTheMode() const
98 : {
99 : return TransliterationModules_UPPERCASE_LOWERCASE == nType ||
100 : TransliterationModules_LOWERCASE_UPPERCASE == nType ||
101 : TransliterationModules_IGNORE_CASE == nType ||
102 : (sal_uInt32) TransliterationModulesExtra::SENTENCE_CASE == (sal_uInt32) nType ||
103 : (sal_uInt32) TransliterationModulesExtra::TITLE_CASE == (sal_uInt32) nType ||
104 0 : (sal_uInt32) TransliterationModulesExtra::TOGGLE_CASE == (sal_uInt32) nType;
105 : }
106 :
107 :
108 20 : void TransliterationWrapper::setLanguageLocaleImpl( sal_uInt16 nLang )
109 : {
110 20 : if( LANGUAGE_NONE == nLang )
111 0 : nLang = LANGUAGE_SYSTEM;
112 20 : aLanguageTag.reset( nLang);
113 20 : }
114 :
115 :
116 60 : void TransliterationWrapper::loadModuleIfNeeded( sal_uInt16 nLang )
117 : {
118 60 : sal_Bool bLoad = bFirstCall;
119 60 : bFirstCall = sal_False;
120 :
121 60 : if( static_cast< sal_Int32 >(nType) == TransliterationModulesExtra::SENTENCE_CASE )
122 : {
123 0 : if( bLoad )
124 0 : loadModuleByImplName(rtl::OUString("SENTENCE_CASE"), nLang);
125 : }
126 60 : else if( static_cast< sal_Int32 >(nType) == TransliterationModulesExtra::TITLE_CASE )
127 : {
128 0 : if( bLoad )
129 0 : loadModuleByImplName(rtl::OUString("TITLE_CASE"), nLang);
130 : }
131 60 : else if( static_cast< sal_Int32 >(nType) == TransliterationModulesExtra::TOGGLE_CASE )
132 : {
133 0 : if( bLoad )
134 0 : loadModuleByImplName(rtl::OUString("TOGGLE_CASE"), nLang);
135 : }
136 : else
137 : {
138 60 : if( aLanguageTag.getLanguageType() != nLang )
139 : {
140 20 : setLanguageLocaleImpl( nLang );
141 20 : if( !bLoad )
142 0 : bLoad = needLanguageForTheMode();
143 : }
144 60 : if( bLoad )
145 41 : loadModuleImpl();
146 : }
147 60 : }
148 :
149 :
150 41 : void TransliterationWrapper::loadModuleImpl() const
151 : {
152 41 : if ( bFirstCall )
153 0 : ((TransliterationWrapper*)this)->setLanguageLocaleImpl( LANGUAGE_SYSTEM );
154 :
155 : try
156 : {
157 41 : if ( xTrans.is() )
158 41 : xTrans->loadModule( (TransliterationModules)nType, aLanguageTag.getLocale() );
159 : }
160 0 : catch ( const Exception& e )
161 : {
162 : SAL_WARN( "unotools.i18n", "loadModuleImpl: Exception caught " << e.Message );
163 : }
164 :
165 41 : bFirstCall = sal_False;
166 41 : }
167 :
168 :
169 0 : void TransliterationWrapper::loadModuleByImplName(
170 : const String& rModuleName, sal_uInt16 nLang )
171 : {
172 : try
173 : {
174 0 : setLanguageLocaleImpl( nLang );
175 0 : com::sun::star::lang::Locale aLocale( aLanguageTag.getLocale());
176 : // Reset LanguageTag, so the next call to loadModuleIfNeeded() forces
177 : // new settings.
178 0 : aLanguageTag.reset( LANGUAGE_DONTKNOW);
179 0 : if ( xTrans.is() )
180 0 : xTrans->loadModuleByImplName( rModuleName, aLocale );
181 : }
182 0 : catch ( const Exception& e )
183 : {
184 : SAL_WARN( "unotools.i18n", "loadModuleByImplName: Exception caught " << e.Message );
185 : }
186 :
187 0 : bFirstCall = sal_False;
188 0 : }
189 :
190 :
191 1692 : sal_Bool TransliterationWrapper::equals(
192 : const String& rStr1, sal_Int32 nPos1, sal_Int32 nCount1, sal_Int32& nMatch1,
193 : const String& rStr2, sal_Int32 nPos2, sal_Int32 nCount2, sal_Int32& nMatch2 ) const
194 : {
195 : try
196 : {
197 1692 : if( bFirstCall )
198 0 : loadModuleImpl();
199 1692 : if ( xTrans.is() )
200 1692 : return xTrans->equals( rStr1, nPos1, nCount1, nMatch1, rStr2, nPos2, nCount2, nMatch2 );
201 : }
202 0 : catch ( const Exception& e )
203 : {
204 : SAL_WARN( "unotools.i18n", "equals: Exception caught " << e.Message );
205 : }
206 0 : return sal_False;
207 : }
208 :
209 3 : sal_Int32 TransliterationWrapper::compareString( const String& rStr1, const String& rStr2 ) const
210 : {
211 : try
212 : {
213 3 : if( bFirstCall )
214 0 : loadModuleImpl();
215 3 : if ( xTrans.is() )
216 3 : return xTrans->compareString( rStr1, rStr2 );
217 : }
218 0 : catch (const Exception& e)
219 : {
220 : SAL_WARN( "unotools.i18n", "compareString: Exception caught " << e.Message );
221 : }
222 0 : return 0;
223 : }
224 :
225 :
226 : // --- helpers --------------------------------------------------------
227 :
228 1692 : sal_Bool TransliterationWrapper::isEqual( const String& rStr1, const String& rStr2 ) const
229 : {
230 : sal_Int32 nMatch1, nMatch2;
231 : sal_Bool bMatch = equals(
232 1692 : rStr1, 0, rStr1.Len(), nMatch1,
233 3384 : rStr2, 0, rStr2.Len(), nMatch2 );
234 1692 : return bMatch;
235 : }
236 :
237 :
238 0 : sal_Bool TransliterationWrapper::isMatch( const String& rStr1, const String& rStr2 ) const
239 : {
240 : sal_Int32 nMatch1, nMatch2;
241 : equals(
242 0 : rStr1, 0, rStr1.Len(), nMatch1,
243 0 : rStr2, 0, rStr2.Len(), nMatch2 );
244 0 : return (nMatch1 <= nMatch2) && (nMatch1 == rStr1.Len());
245 : }
246 :
247 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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