Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

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

1 files changed, 227 insertions, 0 deletions

diff --git a/vcl/source/edit/xtextedt.cxx b/vcl/source/edit/xtextedt.cxx
new file mode 100644
index 000000000..106ad69bf
--- /dev/null
+++ b/vcl/source/edit/xtextedt.cxx
@@ -0,0 +1,227 @@
+/* -*- 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 <i18nutil/searchopt.hxx>
+#include <i18nlangtag/languagetag.hxx>
+#include <vcl/textdata.hxx>
+#include <vcl/xtextedt.hxx>
+#include <vcl/svapp.hxx>
+#include <vcl/settings.hxx>
+#include <unotools/textsearch.hxx>
+#include <com/sun/star/util/SearchFlags.hpp>
+
+using namespace ::com::sun::star;
+
+const std::wstring gaGroupChars = L"(){}[]";
+
+ExtTextEngine::ExtTextEngine()
+{
+}
+
+ExtTextEngine::~ExtTextEngine()
+{
+}
+
+TextSelection ExtTextEngine::MatchGroup( const TextPaM& rCursor ) const
+{
+    TextSelection aSel( rCursor );
+    const sal_Int32 nPos = rCursor.GetIndex();
+    sal_uInt32 nPara = rCursor.GetPara();
+    const sal_uInt32 nParas = GetParagraphCount();
+    if ( ( nPara < nParas ) && ( nPos < GetTextLen( nPara ) ) )
+    {
+        size_t nMatchIndex = gaGroupChars.find( GetText( rCursor.GetPara() )[ nPos ] );
+        if ( nMatchIndex != std::wstring::npos )
+        {
+            if ( ( nMatchIndex % 2 ) == 0 )
+            {
+                // search forwards
+                sal_Unicode nSC = gaGroupChars[ nMatchIndex ];
+                sal_Unicode nEC = gaGroupChars[ nMatchIndex+1 ];
+
+                sal_Int32 nCur = nPos+1;
+                sal_uInt16 nLevel = 1;
+                while ( nLevel && ( nPara < nParas ) )
+                {
+                    OUString aStr = GetText( nPara );
+                    while ( nCur < aStr.getLength() )
+                    {
+                        if ( aStr[nCur] == nSC )
+                            nLevel++;
+                        else if ( aStr[nCur] == nEC )
+                        {
+                            nLevel--;
+                            if ( !nLevel )
+                                break;  // while nCur...
+                        }
+                        nCur++;
+                    }
+
+                    if ( nLevel )
+                    {
+                        nPara++;
+                        nCur = 0;
+                    }
+                }
+                if ( nLevel == 0 )  // found
+                {
+                    aSel.GetStart() = rCursor;
+                    aSel.GetEnd() = TextPaM( nPara, nCur+1 );
+                }
+            }
+            else
+            {
+                // search backwards
+                sal_Unicode nEC = gaGroupChars[ nMatchIndex ];
+                sal_Unicode nSC = gaGroupChars[ nMatchIndex-1 ];
+
+                sal_Int32 nCur = rCursor.GetIndex()-1;
+                sal_uInt16 nLevel = 1;
+                while ( nLevel )
+                {
+                    if ( GetTextLen( nPara ) )
+                    {
+                        OUString aStr = GetText( nPara );
+                        while ( nCur )
+                        {
+                            if ( aStr[nCur] == nSC )
+                            {
+                                nLevel--;
+                                if ( !nLevel )
+                                    break;  // while nCur...
+                            }
+                            else if ( aStr[nCur] == nEC )
+                                nLevel++;
+
+                            nCur--;
+                        }
+                    }
+
+                    if ( nLevel )
+                    {
+                        if ( nPara )
+                        {
+                            nPara--;
+                            nCur = GetTextLen( nPara )-1;   // no matter if negative, as if Len()
+                        }
+                        else
+                            break;
+                    }
+                }
+
+                if ( nLevel == 0 )  // found
+                {
+                    aSel.GetStart() = rCursor;
+                    ++aSel.GetStart().GetIndex();   // behind the char
+                    aSel.GetEnd() = TextPaM( nPara, nCur );
+                }
+            }
+        }
+    }
+    return aSel;
+}
+
+bool ExtTextEngine::Search( TextSelection& rSel, const i18nutil::SearchOptions& rSearchOptions, bool bForward ) const
+{
+    TextSelection aSel( rSel );
+    aSel.Justify();
+
+    bool bSearchInSelection = (0 != (rSearchOptions.searchFlag & util::SearchFlags::REG_NOT_BEGINOFLINE) );
+
+    TextPaM aStartPaM( aSel.GetEnd() );
+    if ( aSel.HasRange() && ( ( bSearchInSelection && bForward ) || ( !bSearchInSelection && !bForward ) ) )
+    {
+        aStartPaM = aSel.GetStart();
+    }
+
+    bool bFound = false;
+    sal_uInt32 nEndNode;
+
+    if ( bSearchInSelection )
+        nEndNode = bForward ? aSel.GetEnd().GetPara() : aSel.GetStart().GetPara();
+    else
+        nEndNode = bForward ? (GetParagraphCount()-1) : 0;
+
+    const sal_uInt32 nStartNode = aStartPaM.GetPara();
+
+    i18nutil::SearchOptions aOptions( rSearchOptions );
+    aOptions.Locale = Application::GetSettings().GetLanguageTag().getLocale();
+    utl::TextSearch aSearcher( utl::TextSearch::UpgradeToSearchOptions2(aOptions) );
+
+    // iterate over the paragraphs
+    for ( sal_uInt32 nNode = nStartNode;
+            bForward ?  ( nNode <= nEndNode) : ( nNode >= nEndNode );
+            bForward ? nNode++ : nNode-- )
+    {
+        OUString aText = GetText( nNode );
+        sal_Int32 nStartPos = 0;
+        sal_Int32 nEndPos = aText.getLength();
+        if ( nNode == nStartNode )
+        {
+            if ( bForward )
+                nStartPos = aStartPaM.GetIndex();
+            else
+                nEndPos = aStartPaM.GetIndex();
+        }
+        if ( ( nNode == nEndNode ) && bSearchInSelection )
+        {
+            if ( bForward )
+                nEndPos = aSel.GetEnd().GetIndex();
+            else
+                nStartPos = aSel.GetStart().GetIndex();
+        }
+
+        if ( bForward )
+            bFound = aSearcher.SearchForward( aText, &nStartPos, &nEndPos );
+        else
+            bFound = aSearcher.SearchBackward( aText, &nEndPos, &nStartPos );
+
+        if ( bFound )
+        {
+            rSel.GetStart().GetPara() = nNode;
+            rSel.GetStart().GetIndex() = nStartPos;
+            rSel.GetEnd().GetPara() = nNode;
+            rSel.GetEnd().GetIndex() = nEndPos;
+            // Select over the paragraph?
+            // FIXME  This should be max long...
+            if( nEndPos == -1)
+            {
+                if ( (rSel.GetEnd().GetPara()+1) < GetParagraphCount() )
+                {
+                    rSel.GetEnd().GetPara()++;
+                    rSel.GetEnd().GetIndex() = 0;
+                }
+                else
+                {
+                    rSel.GetEnd().GetIndex() = nStartPos;
+                    bFound = false;
+                }
+            }
+
+            break;
+        }
+
+        if ( !bForward && !nNode )  // if searching backwards, if nEndNode == 0:
+            break;
+    }
+
+    return bFound;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */