196 lines
6.7 KiB
C++
196 lines
6.7 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <boost/static_assert.hpp>
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#include <tools/shl.hxx>
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#include <com/sun/star/i18n/DirectionProperty.hpp>
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#include <i18nlangtag/lang.h>
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#include <i18nlangtag/mslangid.hxx>
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#include <i18nlangtag/languagetag.hxx>
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#include <svtools/svtools.hrc>
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#include <svtools/svtresid.hxx>
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#include <svtools/langtab.hxx>
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#include <unotools/syslocale.hxx>
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using namespace ::com::sun::star;
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//------------------------------------------------------------------------
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SVT_DLLPUBLIC const OUString ApplyLreOrRleEmbedding( const OUString &rText )
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{
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const sal_Int32 nLen = rText.getLength();
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if (nLen == 0)
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return OUString();
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const sal_Unicode cLRE_Embedding = 0x202A; // the start char of an LRE embedding
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const sal_Unicode cRLE_Embedding = 0x202B; // the start char of an RLE embedding
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const sal_Unicode cPopDirectionalFormat = 0x202C; // the unicode PDF (POP_DIRECTIONAL_FORMAT) char that terminates an LRE/RLE embedding
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// check if there are alreay embedding characters at the strings start
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// if so change nothing
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const sal_Unicode cChar = rText[0];
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if (cChar == cLRE_Embedding || cChar == cRLE_Embedding)
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return rText;
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// since we only call the function getCharacterDirection
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// it does not matter which locale the CharClass is for.
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// Thus we can readily make use of SvtSysLocale::GetCharClass()
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// which should come at no cost...
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SvtSysLocale aSysLocale;
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const CharClass &rCharClass = aSysLocale.GetCharClass();
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// we should look for the first non-neutral LTR or RTL character
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// and use that to determine the embedding of the whole text...
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// Thus we can avoid to check every character of the text.
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bool bFound = false;
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bool bIsRtlText = false;
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for (sal_uInt16 i = 0; i < nLen && !bFound; ++i)
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{
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sal_Int16 nDirection = rCharClass.getCharacterDirection( rText, i );
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switch (nDirection)
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{
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case i18n::DirectionProperty_LEFT_TO_RIGHT :
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case i18n::DirectionProperty_LEFT_TO_RIGHT_EMBEDDING :
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case i18n::DirectionProperty_LEFT_TO_RIGHT_OVERRIDE :
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case i18n::DirectionProperty_EUROPEAN_NUMBER :
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case i18n::DirectionProperty_ARABIC_NUMBER : // yes! arabic numbers are written from left to right
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{
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bIsRtlText = false;
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bFound = true;
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break;
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}
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case i18n::DirectionProperty_RIGHT_TO_LEFT :
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case i18n::DirectionProperty_RIGHT_TO_LEFT_ARABIC :
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case i18n::DirectionProperty_RIGHT_TO_LEFT_EMBEDDING :
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case i18n::DirectionProperty_RIGHT_TO_LEFT_OVERRIDE :
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{
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bIsRtlText = true;
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bFound = true;
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break;
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}
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default:
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{
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// nothing to be done, character is considered to be neutral we need to look further ...
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}
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}
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}
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sal_Unicode cStart = cLRE_Embedding; // default is to use LRE embedding characters
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if (bIsRtlText)
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cStart = cRLE_Embedding; // then use RLE embedding
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// add embedding start and end chars to the text if the direction could be determined
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OUString aRes( rText );
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if (bFound)
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{
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aRes = OUString(cStart) + aRes + OUString(cPopDirectionalFormat);
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}
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return aRes;
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}
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//------------------------------------------------------------------------
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namespace {
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BOOST_STATIC_ASSERT(
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16642 == STR_ARR_SVT_LANGUAGE_TABLE);
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// "The value of STR_ARR_SVT_LANGUAGE_TABLE has changed. wizards/com/sun/star/wizards/letter/LocaleCodes.java has this value hard coded, please adapt it to your change."
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}
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SvtLanguageTable::SvtLanguageTable() :
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ResStringArray( SvtResId( STR_ARR_SVT_LANGUAGE_TABLE ) )
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{
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}
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//------------------------------------------------------------------------
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SvtLanguageTable::~SvtLanguageTable()
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{
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}
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//------------------------------------------------------------------------
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const OUString SvtLanguageTable::GetString( const LanguageType eType, bool bUserInterfaceSelection ) const
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{
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LanguageType eLang = MsLangId::getReplacementForObsoleteLanguage( eType, bUserInterfaceSelection);
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sal_uInt32 nPos = FindIndex( eLang );
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if ( RESARRAY_INDEX_NOTFOUND != nPos && nPos < Count() )
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return ResStringArray::GetString( nPos );
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//Rather than return a fairly useless "Unknown" name, return a geeky but usable-in-a-pinch lang-tag
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OUString sLangTag(LanguageTag::convertToBcp47(eType));
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SAL_WARN("svtools.misc", "Language: 0x"
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<< std::hex << eType
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<< " with unknown name, so returning lang-tag of: "
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<< sLangTag);
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return sLangTag;
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}
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OUString SvtLanguageTable::GetLanguageString( const LanguageType eType )
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{
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static const SvtLanguageTable aLangTable;
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return aLangTable.GetString( eType );
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}
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//------------------------------------------------------------------------
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LanguageType SvtLanguageTable::GetType( const OUString& rStr ) const
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{
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LanguageType eType = LANGUAGE_DONTKNOW;
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sal_uInt32 nCount = Count();
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for ( sal_uInt32 i = 0; i < nCount; ++i )
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{
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if (ResStringArray::GetString( i ).equals(rStr))
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{
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eType = LanguageType( GetValue( i ) );
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break;
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}
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}
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return eType;
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}
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//------------------------------------------------------------------------
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sal_uInt32 SvtLanguageTable::GetEntryCount() const
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{
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return Count();
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}
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//------------------------------------------------------------------------
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LanguageType SvtLanguageTable::GetTypeAtIndex( sal_uInt32 nIndex ) const
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{
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LanguageType nType = LANGUAGE_DONTKNOW;
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if (nIndex < Count())
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nType = LanguageType( GetValue( nIndex ) );
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return nType;
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}
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//------------------------------------------------------------------------
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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