office-gobmx/svtools/source/edit/xtextedt.cxx
2011-11-27 13:24:31 -06:00

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
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#include <svtools/xtextedt.hxx>
#include <vcl/svapp.hxx> // International
#include <unotools/textsearch.hxx>
#include <com/sun/star/util/SearchOptions.hpp>
#include <com/sun/star/util/SearchFlags.hpp>
using namespace ::com::sun::star;
// -------------------------------------------------------------------------
// class ExtTextEngine
// -------------------------------------------------------------------------
ExtTextEngine::ExtTextEngine() : maGroupChars( String::CreateFromAscii( "(){}[]", 6 ) )
{
}
ExtTextEngine::~ExtTextEngine()
{
}
TextSelection ExtTextEngine::MatchGroup( const TextPaM& rCursor ) const
{
TextSelection aSel( rCursor );
sal_uInt16 nPos = rCursor.GetIndex();
sal_uLong nPara = rCursor.GetPara();
sal_uLong nParas = GetParagraphCount();
if ( ( nPara < nParas ) && ( nPos < GetTextLen( nPara ) ) )
{
sal_uInt16 nMatchChar = maGroupChars.Search( GetText( rCursor.GetPara() ).GetChar( nPos ) );
if ( nMatchChar != STRING_NOTFOUND )
{
if ( ( nMatchChar % 2 ) == 0 )
{
// Vorwaerts suchen...
sal_Unicode nSC = maGroupChars.GetChar( nMatchChar );
sal_Unicode nEC = maGroupChars.GetChar( nMatchChar+1 );
sal_uInt16 nCur = nPos+1;
sal_uInt16 nLevel = 1;
while ( nLevel && ( nPara < nParas ) )
{
XubString aStr = GetText( nPara );
while ( nCur < aStr.Len() )
{
if ( aStr.GetChar( nCur ) == nSC )
nLevel++;
else if ( aStr.GetChar( nCur ) == nEC )
{
nLevel--;
if ( !nLevel )
break; // while nCur...
}
nCur++;
}
if ( nLevel )
{
nPara++;
nCur = 0;
}
}
if ( nLevel == 0 ) // gefunden
{
aSel.GetStart() = rCursor;
aSel.GetEnd() = TextPaM( nPara, nCur+1 );
}
}
else
{
// Rueckwaerts suchen...
xub_Unicode nEC = maGroupChars.GetChar( nMatchChar );
xub_Unicode nSC = maGroupChars.GetChar( nMatchChar-1 );
sal_uInt16 nCur = rCursor.GetIndex()-1;
sal_uInt16 nLevel = 1;
while ( nLevel )
{
if ( GetTextLen( nPara ) )
{
XubString aStr = GetText( nPara );
while ( nCur )
{
if ( aStr.GetChar( nCur ) == nSC )
{
nLevel--;
if ( !nLevel )
break; // while nCur...
}
else if ( aStr.GetChar( nCur ) == nEC )
nLevel++;
nCur--;
}
}
if ( nLevel )
{
if ( nPara )
{
nPara--;
nCur = GetTextLen( nPara )-1; // egal ob negativ, weil if Len()
}
else
break;
}
}
if ( nLevel == 0 ) // gefunden
{
aSel.GetStart() = rCursor;
aSel.GetStart().GetIndex()++; // hinter das Zeichen
aSel.GetEnd() = TextPaM( nPara, nCur );
}
}
}
}
return aSel;
}
sal_Bool ExtTextEngine::Search( TextSelection& rSel, const util::SearchOptions& rSearchOptions, sal_Bool bForward )
{
TextSelection aSel( rSel );
aSel.Justify();
sal_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_uLong nStartNode, nEndNode;
if ( bSearchInSelection )
nEndNode = bForward ? aSel.GetEnd().GetPara() : aSel.GetStart().GetPara();
else
nEndNode = bForward ? (GetParagraphCount()-1) : 0;
nStartNode = aStartPaM.GetPara();
util::SearchOptions aOptions( rSearchOptions );
aOptions.Locale = Application::GetSettings().GetLocale();
utl::TextSearch aSearcher( rSearchOptions );
// ueber die Absaetze iterieren...
for ( sal_uLong nNode = nStartNode;
bForward ? ( nNode <= nEndNode) : ( nNode >= nEndNode );
bForward ? nNode++ : nNode-- )
{
String aText = GetText( nNode );
sal_uInt16 nStartPos = 0;
sal_uInt16 nEndPos = aText.Len();
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.SearchFrwrd( aText, &nStartPos, &nEndPos );
else
bFound = aSearcher.SearchBkwrd( aText, &nEndPos, &nStartPos );
if ( bFound )
{
rSel.GetStart().GetPara() = nNode;
rSel.GetStart().GetIndex() = nStartPos;
rSel.GetEnd().GetPara() = nNode;
rSel.GetEnd().GetIndex() = nEndPos;
// Ueber den Absatz selektieren?
// Select over the paragraph?
// FIXME This should be max long...
if( nEndPos == sal::static_int_cast<sal_uInt16>(-1) ) // sal_uInt16 for 0 and -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 ) // Bei rueckwaertsuche, wenn nEndNode = 0:
break;
}
return bFound;
}
// -------------------------------------------------------------------------
// class ExtTextView
// -------------------------------------------------------------------------
ExtTextView::ExtTextView( ExtTextEngine* pEng, Window* pWindow )
: TextView( pEng, pWindow )
{
}
ExtTextView::~ExtTextView()
{
}
sal_Bool ExtTextView::MatchGroup()
{
TextSelection aTmpSel( GetSelection() );
aTmpSel.Justify();
if ( ( aTmpSel.GetStart().GetPara() != aTmpSel.GetEnd().GetPara() ) ||
( ( aTmpSel.GetEnd().GetIndex() - aTmpSel.GetStart().GetIndex() ) > 1 ) )
{
return sal_False;
}
TextSelection aMatchSel = ((ExtTextEngine*)GetTextEngine())->MatchGroup( aTmpSel.GetStart() );
if ( aMatchSel.HasRange() )
SetSelection( aMatchSel );
return aMatchSel.HasRange() ? sal_True : sal_False;
}
sal_Bool ExtTextView::Search( const util::SearchOptions& rSearchOptions, sal_Bool bForward )
{
sal_Bool bFound = sal_False;
TextSelection aSel( GetSelection() );
if ( ((ExtTextEngine*)GetTextEngine())->Search( aSel, rSearchOptions, bForward ) )
{
bFound = sal_True;
// Erstmal den Anfang des Wortes als Selektion einstellen,
// damit das ganze Wort in den sichtbaren Bereich kommt.
SetSelection( aSel.GetStart() );
ShowCursor( sal_True, sal_False );
}
else
{
aSel = GetSelection().GetEnd();
}
SetSelection( aSel );
ShowCursor();
return bFound;
}
sal_uInt16 ExtTextView::Replace( const util::SearchOptions& rSearchOptions, sal_Bool bAll, sal_Bool bForward )
{
sal_uInt16 nFound = 0;
if ( !bAll )
{
if ( GetSelection().HasRange() )
{
InsertText( rSearchOptions.replaceString );
nFound = 1;
Search( rSearchOptions, bForward ); // gleich zum naechsten
}
else
{
if( Search( rSearchOptions, bForward ) )
nFound = 1;
}
}
else
{
// Der Writer ersetzt alle, vom Anfang bis Ende...
ExtTextEngine* pTextEngine = (ExtTextEngine*)GetTextEngine();
// HideSelection();
TextSelection aSel;
sal_Bool bSearchInSelection = (0 != (rSearchOptions.searchFlag & util::SearchFlags::REG_NOT_BEGINOFLINE) );
if ( bSearchInSelection )
{
aSel = GetSelection();
aSel.Justify();
}
TextSelection aSearchSel( aSel );
sal_Bool bFound = pTextEngine->Search( aSel, rSearchOptions, sal_True );
if ( bFound )
pTextEngine->UndoActionStart();
while ( bFound )
{
nFound++;
TextPaM aNewStart = pTextEngine->ImpInsertText( aSel, rSearchOptions.replaceString );
aSel = aSearchSel;
aSel.GetStart() = aNewStart;
bFound = pTextEngine->Search( aSel, rSearchOptions, sal_True );
}
if ( nFound )
{
SetSelection( aSel.GetStart() );
pTextEngine->FormatAndUpdate( this );
pTextEngine->UndoActionEnd();
}
}
return nFound;
}
sal_Bool ExtTextView::ImpIndentBlock( sal_Bool bRight )
{
sal_Bool bDone = sal_False;
TextSelection aSel = GetSelection();
aSel.Justify();
HideSelection();
GetTextEngine()->UndoActionStart();
sal_uLong nStartPara = aSel.GetStart().GetPara();
sal_uLong nEndPara = aSel.GetEnd().GetPara();
if ( aSel.HasRange() && !aSel.GetEnd().GetIndex() )
{
nEndPara--; // den dann nicht einruecken...
}
for ( sal_uLong nPara = nStartPara; nPara <= nEndPara; nPara++ )
{
if ( bRight )
{
// Tabs hinzufuegen
GetTextEngine()->ImpInsertText( TextPaM( nPara, 0 ), '\t' );
bDone = sal_True;
}
else
{
// Tabs/Blanks entfernen
String aText = GetTextEngine()->GetText( nPara );
if ( aText.Len() && (
( aText.GetChar( 0 ) == '\t' ) ||
( aText.GetChar( 0 ) == ' ' ) ) )
{
GetTextEngine()->ImpDeleteText( TextSelection( TextPaM( nPara, 0 ), TextPaM( nPara, 1 ) ) );
bDone = sal_True;
}
}
}
GetTextEngine()->UndoActionEnd();
sal_Bool bRange = aSel.HasRange();
if ( bRight )
{
aSel.GetStart().GetIndex()++;
if ( bRange && ( aSel.GetEnd().GetPara() == nEndPara ) )
aSel.GetEnd().GetIndex()++;
}
else
{
if ( aSel.GetStart().GetIndex() )
aSel.GetStart().GetIndex()--;
if ( bRange && aSel.GetEnd().GetIndex() )
aSel.GetEnd().GetIndex()--;
}
ImpSetSelection( aSel );
GetTextEngine()->FormatAndUpdate( this );
return bDone;
}
sal_Bool ExtTextView::IndentBlock()
{
return ImpIndentBlock( sal_True );
}
sal_Bool ExtTextView::UnindentBlock()
{
return ImpIndentBlock( sal_False );
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */