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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 : #include <unotools/unotoolsdllapi.h>
20 :
21 : #ifndef INCLUDED_UNOTOOLS_TRANSLITERATIONWRAPPER_HXX
22 : #define INCLUDED_UNOTOOLS_TRANSLITERATIONWRAPPER_HXX
23 :
24 : #include <rtl/ustring.hxx>
25 : #include <i18nlangtag/languagetag.hxx>
26 : #include <com/sun/star/i18n/XExtendedTransliteration.hpp>
27 :
28 : namespace com { namespace sun { namespace star {
29 : namespace uno {
30 : class XComponentContext;
31 : }
32 : }}}
33 :
34 : namespace utl
35 : {
36 :
37 : class UNOTOOLS_DLLPUBLIC TransliterationWrapper
38 : {
39 : ::com::sun::star::uno::Reference<
40 : ::com::sun::star::i18n::XExtendedTransliteration > xTrans;
41 : LanguageTag aLanguageTag;
42 : sal_uInt32 nType;
43 : mutable bool bFirstCall;
44 :
45 : // not implemented, prevent usage
46 : TransliterationWrapper( const TransliterationWrapper& );
47 : TransliterationWrapper& operator=( const TransliterationWrapper& );
48 :
49 : void loadModuleImpl() const;
50 : void setLanguageLocaleImpl( sal_uInt16 nLang );
51 :
52 : public:
53 : TransliterationWrapper( const ::com::sun::star::uno::Reference<
54 : ::com::sun::star::uno::XComponentContext > & rxContext,
55 : sal_uInt32 nType );
56 :
57 : ~TransliterationWrapper();
58 :
59 : // get current Locale / Language
60 : const ::com::sun::star::lang::Locale& getLocale() const { return aLanguageTag.getLocale();}
61 : sal_uInt16 getLanguage() const { return aLanguageTag.getLanguageType(); }
62 :
63 22 : sal_uInt32 getType() const { return nType; }
64 :
65 : bool needLanguageForTheMode() const;
66 :
67 : /** set a new language and load the corresponding transliteration module if
68 : needed for the mode set with nType in the ctor */
69 : void loadModuleIfNeeded( sal_uInt16 nLang );
70 :
71 : /** Load the transliteration module specified by rModuleName, which has to
72 : be the UNO service implementation name that is expanded to the full UNO
73 : service implementation name, for example, "NumToCharKanjiShort_ja_JP"
74 : expands to
75 : "com.sun.star.i18n.Transliteration.NumToCharKanjiShort_ja_JP".
76 : @ATTENTION!
77 : This method ignores the mode type set with the constructor and
78 : interferes with the loadModuleIfNeeded() method and the transliterate()
79 : method that gets a LanguageType passed as parameter. Using one of
80 : those may load a different module and overwrite this setting. Only the
81 : transliterate() method that takes no LanguageType parameter may be used
82 : for a specific module loaded with this method. */
83 : void loadModuleByImplName( const OUString& rModuleName, sal_uInt16 nLang );
84 :
85 : /** This transliteration method corresponds with the loadModuleByImplName()
86 : method. It relies on a module being loaded and does not try load one.
87 : If for any reason the string can't be transliterated the original
88 : string is returned. */
89 : OUString transliterate( const OUString& rStr,
90 : sal_Int32 nStart, sal_Int32 nLen,
91 : ::com::sun::star::uno::Sequence <sal_Int32>* pOffset ) const;
92 :
93 : // Wrapper implementations of class Transliteration
94 : OUString transliterate( const OUString& rStr, sal_uInt16 nLanguage,
95 : sal_Int32 nStart, sal_Int32 nLen,
96 : ::com::sun::star::uno::Sequence <sal_Int32>* pOffset );
97 :
98 : /** If two strings are equal per this transliteration.
99 : Returns the number of matched code points in any case, even if strings
100 : are not equal, for example:
101 : equals( "a", 0, 1, nMatch1, "aaa", 0, 3, nMatch2 )
102 : returns false and nMatch:=1 and nMatch2:=1
103 : equals( "aab", 0, 3, nMatch1, "aaa", 0, 3, nMatch2 )
104 : returns false and nMatch:=2 and nMatch2:=2
105 : */
106 : bool equals(
107 : const OUString& rStr1, sal_Int32 nPos1, sal_Int32 nCount1, sal_Int32& nMatch1,
108 : const OUString& rStr2, sal_Int32 nPos2, sal_Int32 nCount2, sal_Int32& nMatch2 ) const;
109 :
110 : sal_Int32 compareString( const OUString& rStr1, const OUString& rStr2 ) const;
111 :
112 : // helpers
113 :
114 : /** If two strings are really equal as per this translation, and not just
115 : one string is matching the start of the other. Use this method instead
116 : of compareString()==0 because it is much faster.
117 : */
118 : bool isEqual( const OUString& rStr1, const OUString& rStr2 ) const;
119 :
120 : /** If string rStr1 matches the start of string rStr2, i.e. "a" in "aaa"
121 : */
122 : bool isMatch( const OUString& rStr1, const OUString& rStr2 ) const;
123 :
124 : };
125 :
126 : } // namespace utl
127 :
128 : #endif
129 :
130 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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