diff options
Diffstat (limited to 'sw/source/core/txtnode/txatritr.cxx')
| -rw-r--r-- | sw/source/core/txtnode/txatritr.cxx | 218 |
1 files changed, 218 insertions, 0 deletions
diff --git a/sw/source/core/txtnode/txatritr.cxx b/sw/source/core/txtnode/txatritr.cxx new file mode 100644 index 000000000..883c09760 --- /dev/null +++ b/sw/source/core/txtnode/txatritr.cxx @@ -0,0 +1,218 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#include <txatritr.hxx> + +#include <com/sun/star/i18n/ScriptType.hpp> +#include <com/sun/star/i18n/XBreakIterator.hpp> +#include <fchrfmt.hxx> +#include <charfmt.hxx> +#include <breakit.hxx> +#include <ndtxt.hxx> +#include <txatbase.hxx> + +using namespace ::com::sun::star; + +SwScriptIterator::SwScriptIterator( + const OUString& rStr, sal_Int32 nStt, bool const bFrwrd) + : m_rText(rStr) + , m_nChgPos(rStr.getLength()) + , m_nCurScript(i18n::ScriptType::WEAK) + , m_bForward(bFrwrd) +{ + assert(g_pBreakIt && g_pBreakIt->GetBreakIter().is()); + if ( ! bFrwrd && nStt ) + --nStt; + + sal_Int32 nPos = nStt; + m_nCurScript = g_pBreakIt->GetBreakIter()->getScriptType(m_rText, nPos); + if( i18n::ScriptType::WEAK == m_nCurScript ) + { + if( nPos ) + { + nPos = g_pBreakIt->GetBreakIter()->beginOfScript( + m_rText, nPos, m_nCurScript); + if (nPos > 0 && nPos < m_rText.getLength()) + { + nStt = --nPos; + m_nCurScript = + g_pBreakIt->GetBreakIter()->getScriptType(m_rText,nPos); + } + } + } + + m_nChgPos = m_bForward + ? g_pBreakIt->GetBreakIter()->endOfScript( + m_rText, nStt, m_nCurScript) + : g_pBreakIt->GetBreakIter()->beginOfScript( + m_rText, nStt, m_nCurScript); +} + +void SwScriptIterator::Next() +{ + assert(g_pBreakIt && g_pBreakIt->GetBreakIter().is()); + if (m_bForward && m_nChgPos >= 0 && m_nChgPos < m_rText.getLength()) + { + m_nCurScript = + g_pBreakIt->GetBreakIter()->getScriptType(m_rText, m_nChgPos); + m_nChgPos = g_pBreakIt->GetBreakIter()->endOfScript( + m_rText, m_nChgPos, m_nCurScript); + } + else if (!m_bForward && m_nChgPos > 0) + { + --m_nChgPos; + m_nCurScript = + g_pBreakIt->GetBreakIter()->getScriptType(m_rText, m_nChgPos); + m_nChgPos = g_pBreakIt->GetBreakIter()->beginOfScript( + m_rText, m_nChgPos, m_nCurScript); + } +} + +SwLanguageIterator::SwLanguageIterator( const SwTextNode& rTNd, + sal_Int32 nStt ) + : m_aScriptIter( rTNd.GetText(), nStt ), + m_rTextNode( rTNd ), + m_pParaItem( nullptr ), + m_nAttrPos( 0 ), + m_nChgPos( nStt ) +{ + SearchNextChg(); +} + +bool SwLanguageIterator::Next() +{ + bool bRet = false; + if (m_nChgPos < m_aScriptIter.GetText().getLength()) + { + bRet = true; + if( !m_aStack.empty() ) + { + do { + const SwTextAttr* pHt = m_aStack.front(); + const sal_Int32 nEndPos = *pHt->End(); + if( m_nChgPos >= nEndPos ) + m_aStack.pop_front(); + else + break; + } while( !m_aStack.empty() ); + } + + if( !m_aStack.empty() ) + { + const size_t nSavePos = m_nAttrPos; + SearchNextChg(); + if( !m_aStack.empty() ) + { + const SwTextAttr* pHt = m_aStack.front(); + const sal_Int32 nEndPos = *pHt->End(); + if( m_nChgPos >= nEndPos ) + { + m_nChgPos = nEndPos; + m_nAttrPos = nSavePos; + + if( RES_TXTATR_CHARFMT == pHt->Which() ) + { + const sal_uInt16 nWId = GetWhichOfScript( RES_CHRATR_LANGUAGE, m_aScriptIter.GetCurrScript() ); + m_pCurrentItem = &pHt->GetCharFormat().GetCharFormat()->GetFormatAttr(nWId); + } + else + m_pCurrentItem = &pHt->GetAttr(); + + m_aStack.pop_front(); + } + } + } + else + SearchNextChg(); + } + return bRet; +} + +void SwLanguageIterator::AddToStack( const SwTextAttr& rAttr ) +{ + size_t nIns = 0; + const sal_Int32 nEndPos = *rAttr.End(); + for( ; nIns < m_aStack.size(); ++nIns ) + if( *m_aStack[ nIns ]->End() > nEndPos ) + break; + + m_aStack.insert( m_aStack.begin() + nIns, &rAttr ); +} + +void SwLanguageIterator::SearchNextChg() +{ + sal_uInt16 nWh = 0; + if( m_nChgPos == m_aScriptIter.GetScriptChgPos() ) + { + m_aScriptIter.Next(); + m_pParaItem = nullptr; + m_nAttrPos = 0; // must be restart at the beginning, because + // some attributes can start before or inside + // the current scripttype! + m_aStack.clear(); + } + if( !m_pParaItem ) + { + nWh = GetWhichOfScript( RES_CHRATR_LANGUAGE, m_aScriptIter.GetCurrScript() ); + m_pParaItem = &m_rTextNode.GetSwAttrSet().Get( nWh ); + } + + sal_Int32 nStt = m_nChgPos; + m_nChgPos = m_aScriptIter.GetScriptChgPos(); + m_pCurrentItem = m_pParaItem; + + const SwpHints* pHts = m_rTextNode.GetpSwpHints(); + if( !pHts ) + return; + + if( !nWh ) + { + nWh = GetWhichOfScript( RES_CHRATR_LANGUAGE, m_aScriptIter.GetCurrScript() ); + } + + const SfxPoolItem* pItem = nullptr; + for( ; m_nAttrPos < pHts->Count(); ++m_nAttrPos ) + { + const SwTextAttr* pHt = pHts->Get( m_nAttrPos ); + const sal_Int32* pEnd = pHt->End(); + const sal_Int32 nHtStt = pHt->GetStart(); + if( nHtStt < nStt && ( !pEnd || *pEnd <= nStt )) + continue; + + if( nHtStt >= m_nChgPos ) + break; + + pItem = CharFormat::GetItem( *pHt, nWh ); + if ( pItem ) + { + if( nHtStt > nStt ) + { + if( m_nChgPos > nHtStt ) + m_nChgPos = nHtStt; + break; + } + AddToStack( *pHt ); + m_pCurrentItem = pItem; + if( *pEnd < m_nChgPos ) + m_nChgPos = *pEnd; + } + } +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |