Adding upstream version 4:24.2.0.upstream/4%24.2.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 213 insertions, 0 deletions

diff --git a/sw/source/core/txtnode/txatritr.cxx b/sw/source/core/txtnode/txatritr.cxx
new file mode 100644
index 0000000000..1bc97b62b2
--- /dev/null
+++ b/sw/source/core/txtnode/txatritr.cxx
@@ -0,0 +1,213 @@
+/* -*- 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;
+
+                    const TypedWhichId<SvxLanguageItem> nWId = GetWhichOfScript( RES_CHRATR_LANGUAGE, m_aScriptIter.GetCurrScript() );
+                    m_pCurrentItem = CharFormat::GetItem(*pHt, nWId);
+
+                    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()
+{
+    TypedWhichId<SvxLanguageItem> 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 SvxLanguageItem* 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: */