path: root/editeng/source/editeng/editundo.cxx

/* -*- 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.
 *
 ************************************************************************/

// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_editeng.hxx"

#include <eeng_pch.hxx>

#include <impedit.hxx>
#include <editundo.hxx>
#include <editeng/editview.hxx>
#include <editeng/editeng.hxx>

DBG_NAME( EditUndo )

#define MAX_UNDOS	100		// From this quantity it may be deleted ....
#define MIN_UNDOS	50		// so much has to be left ...

#define NO_UNDO			0xFFFF
#define GROUP_NOTFOUND	0xFFFF

TYPEINIT1( EditUndo, SfxUndoAction );
TYPEINIT1( EditUndoDelContent, EditUndo );
TYPEINIT1( EditUndoConnectParas, EditUndo );
TYPEINIT1( EditUndoSplitPara, EditUndo );
TYPEINIT1( EditUndoInsertChars, EditUndo );
TYPEINIT1( EditUndoRemoveChars, EditUndo );
TYPEINIT1( EditUndoInsertFeature, EditUndo );
TYPEINIT1( EditUndoMoveParagraphs, EditUndo );
TYPEINIT1( EditUndoSetStyleSheet, EditUndo );
TYPEINIT1( EditUndoSetParaAttribs, EditUndo );
TYPEINIT1( EditUndoSetAttribs, EditUndo );
TYPEINIT1( EditUndoTransliteration, EditUndo );
TYPEINIT1( EditUndoMarkSelection, EditUndo );

void lcl_DoSetSelection( EditView* pView, USHORT nPara )
{
    EPaM aEPaM( nPara, 0 );
    EditPaM aPaM( pView->GetImpEditEngine()->CreateEditPaM( aEPaM ) );
    aPaM.SetIndex( aPaM.GetNode()->Len() );
    EditSelection aSel( aPaM, aPaM );
    pView->GetImpEditView()->SetEditSelection( aSel );
}

EditUndoManager::EditUndoManager( ImpEditEngine* p )
{
    pImpEE = p;
}

BOOL EditUndoManager::Undo( USHORT nCount )
{
    if ( GetUndoActionCount() == 0 )
        return FALSE;

    DBG_ASSERT( pImpEE->GetActiveView(), "Active View?" );

    if ( !pImpEE->GetActiveView() )
    {
        if ( pImpEE->GetEditViews().Count() )
            pImpEE->SetActiveView( pImpEE->GetEditViews().GetObject(0) );
        else
        {
            OSL_FAIL("Undo in engine is not possible without a View! ");
            return FALSE;
        }
    }

    pImpEE->GetActiveView()->GetImpEditView()->DrawSelection();	// Remove the old selection

    pImpEE->SetUndoMode( TRUE );
    BOOL bDone = SfxUndoManager::Undo( nCount );
    pImpEE->SetUndoMode( FALSE );

    EditSelection aNewSel( pImpEE->GetActiveView()->GetImpEditView()->GetEditSelection() );
    DBG_ASSERT( !aNewSel.IsInvalid(), "Invalid selection after Undo () ");
    DBG_ASSERT( !aNewSel.DbgIsBuggy( pImpEE->GetEditDoc() ), "Broken selection afte Undo () ");

    aNewSel.Min() = aNewSel.Max();
    pImpEE->GetActiveView()->GetImpEditView()->SetEditSelection( aNewSel );
    pImpEE->FormatAndUpdate( pImpEE->GetActiveView() );

    return bDone;
}

BOOL EditUndoManager::Redo( USHORT nCount )
{
    if ( GetRedoActionCount() == 0 )
        return FALSE;

    DBG_ASSERT( pImpEE->GetActiveView(), "Active View?" );

    if ( !pImpEE->GetActiveView() )
    {
        if ( pImpEE->GetEditViews().Count() )
            pImpEE->SetActiveView( pImpEE->GetEditViews().GetObject(0) );
        else
        {
            OSL_FAIL( "Redo in Engine ohne View nicht moeglich!" );
            return FALSE;
        }
    }

    pImpEE->GetActiveView()->GetImpEditView()->DrawSelection();	// Remove the old selection

    pImpEE->SetUndoMode( TRUE );
    BOOL bDone = SfxUndoManager::Redo( nCount );
    pImpEE->SetUndoMode( FALSE );

    EditSelection aNewSel( pImpEE->GetActiveView()->GetImpEditView()->GetEditSelection() );
    DBG_ASSERT( !aNewSel.IsInvalid(), "Invalid selection after Undo () ");
    DBG_ASSERT( !aNewSel.DbgIsBuggy( pImpEE->GetEditDoc() ), "Broken selection afte Undo () ");

    aNewSel.Min() = aNewSel.Max();
    pImpEE->GetActiveView()->GetImpEditView()->SetEditSelection( aNewSel );
    pImpEE->FormatAndUpdate( pImpEE->GetActiveView() );

    return bDone;
}

EditUndo::EditUndo( USHORT nI, ImpEditEngine* p )
{
    DBG_CTOR( EditUndo, 0 );
    nId = nI;
    pImpEE = p;
}

EditUndo::~EditUndo()
{
    DBG_DTOR( EditUndo, 0 );
}

USHORT EditUndo::GetId() const
{
    DBG_CHKTHIS( EditUndo, 0 );
    return nId;
}

BOOL EditUndo::CanRepeat(SfxRepeatTarget&) const
{
    return FALSE;
}

XubString EditUndo::GetComment() const
{
    XubString aComment;
    if ( pImpEE )
    {
        EditEngine* pEditEng = pImpEE->GetEditEnginePtr();
        aComment = pEditEng->GetUndoComment( GetId() );
    }
    return aComment;
}

EditUndoDelContent::EditUndoDelContent( ImpEditEngine* _pImpEE, ContentNode* pNode, USHORT n )
                    : EditUndo( EDITUNDO_DELCONTENT, _pImpEE )
{
    pContentNode = pNode;
    nNode = n;
    bDelObject = TRUE;
}

EditUndoDelContent::~EditUndoDelContent()
{
    if ( bDelObject )
        delete pContentNode;
}

void EditUndoDelContent::Undo()
{
    DBG_ASSERT( GetImpEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
    GetImpEditEngine()->InsertContent( pContentNode, nNode );
    bDelObject = FALSE;	// belongs to the Engine again
    EditSelection aSel( EditPaM( pContentNode, 0 ), EditPaM( pContentNode, pContentNode->Len() ) );
    GetImpEditEngine()->GetActiveView()->GetImpEditView()->SetEditSelection( aSel );
}

void EditUndoDelContent::Redo()
{
    DBG_ASSERT( GetImpEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );

    ImpEditEngine* _pImpEE = GetImpEditEngine();

    // pNode is no longer correct, if the paragraphs where merged
    // in between Undos
    pContentNode = _pImpEE->GetEditDoc().SaveGetObject( nNode );
    DBG_ASSERT( pContentNode, "EditUndoDelContent::Redo(): Node?!" );

    delete _pImpEE->GetParaPortions()[nNode];
    _pImpEE->GetParaPortions().Remove( nNode );

    // Do not delete node, depends on the undo!
    _pImpEE->GetEditDoc().Remove( nNode );
    if( _pImpEE->IsCallParaInsertedOrDeleted() )
        _pImpEE->GetEditEnginePtr()->ParagraphDeleted( nNode );

    DeletedNodeInfo* pInf = new DeletedNodeInfo( (ULONG)pContentNode, nNode );
    _pImpEE->aDeletedNodes.Insert( pInf, _pImpEE->aDeletedNodes.Count() );
    _pImpEE->UpdateSelections();

    ContentNode* pN = ( nNode < _pImpEE->GetEditDoc().Count() )
        ? _pImpEE->GetEditDoc().SaveGetObject( nNode )
        : _pImpEE->GetEditDoc().SaveGetObject( nNode-1 );
    DBG_ASSERT( pN && ( pN != pContentNode ), "?! RemoveContent !? " );
    EditPaM aPaM( pN, pN->Len() );

    bDelObject = TRUE;	// belongs to the Engine again

    _pImpEE->GetActiveView()->GetImpEditView()->SetEditSelection( EditSelection( aPaM, aPaM ) );
}

EditUndoConnectParas::EditUndoConnectParas( ImpEditEngine* _pImpEE, USHORT nN, USHORT nSP,
                                            const SfxItemSet& rLeftParaAttribs, const SfxItemSet& rRightParaAttribs,
                                            const SfxStyleSheet* pLeftStyle, const SfxStyleSheet* pRightStyle, BOOL bBkwrd )
                    : 	EditUndo( EDITUNDO_CONNECTPARAS, _pImpEE ),
                        aLeftParaAttribs( rLeftParaAttribs ),
                        aRightParaAttribs( rRightParaAttribs )
{
    nNode	= nN;
    nSepPos	= nSP;

    if ( pLeftStyle )
    {
        aLeftStyleName = pLeftStyle->GetName();
        eLeftStyleFamily = pLeftStyle->GetFamily();
    }
    if ( pRightStyle )
    {
        aRightStyleName = pRightStyle->GetName();
        eRightStyleFamily = pRightStyle->GetFamily();
    }

    bBackward = bBkwrd;
}

EditUndoConnectParas::~EditUndoConnectParas()
{
}

void EditUndoConnectParas::Undo()
{
    DBG_ASSERT( GetImpEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );

    // For SplitContent ParagraphInserted can not be called yet because the 
    // Outliner relies on the attributes to initialize the depth

    BOOL bCall = GetImpEditEngine()->IsCallParaInsertedOrDeleted();
    GetImpEditEngine()->SetCallParaInsertedOrDeleted( FALSE );

    EditPaM aPaM = GetImpEditEngine()->SplitContent( nNode, nSepPos );
    GetImpEditEngine()->SetParaAttribs( nNode, aLeftParaAttribs );
    GetImpEditEngine()->SetParaAttribs( nNode+1, aRightParaAttribs );

    GetImpEditEngine()->SetCallParaInsertedOrDeleted( bCall );
    if ( GetImpEditEngine()->IsCallParaInsertedOrDeleted() )
        GetImpEditEngine()->GetEditEnginePtr()->ParagraphInserted( nNode+1 );

    if ( GetImpEditEngine()->GetStyleSheetPool() ) 
    {
        if ( aLeftStyleName.Len() )
            GetImpEditEngine()->SetStyleSheet( (USHORT)nNode, (SfxStyleSheet*)GetImpEditEngine()->GetStyleSheetPool()->Find( aLeftStyleName, eLeftStyleFamily ) );
        if ( aRightStyleName.Len() )
            GetImpEditEngine()->SetStyleSheet( nNode+1, (SfxStyleSheet*)GetImpEditEngine()->GetStyleSheetPool()->Find( aRightStyleName, eRightStyleFamily ) );
    }

    GetImpEditEngine()->GetActiveView()->GetImpEditView()->SetEditSelection( EditSelection( aPaM, aPaM ) );
}

void EditUndoConnectParas::Redo()
{
    DBG_ASSERT( GetImpEditEngine()->GetActiveView(), "Undo/Redo: Np Active View!" );
    EditPaM aPaM = GetImpEditEngine()->ConnectContents( nNode, bBackward );

    GetImpEditEngine()->GetActiveView()->GetImpEditView()->SetEditSelection( EditSelection( aPaM, aPaM ) );
}

EditUndoSplitPara::EditUndoSplitPara( ImpEditEngine* _pImpEE, USHORT nN, USHORT nSP )
                    : EditUndo( EDITUNDO_SPLITPARA, _pImpEE )
{
    nNode	= nN;
    nSepPos	= nSP;
}

EditUndoSplitPara::~EditUndoSplitPara()
{
}

void EditUndoSplitPara::Undo()
{
    DBG_ASSERT( GetImpEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
    EditPaM aPaM = GetImpEditEngine()->ConnectContents( nNode, FALSE );
    GetImpEditEngine()->GetActiveView()->GetImpEditView()->SetEditSelection( EditSelection( aPaM, aPaM ) );
}

void EditUndoSplitPara::Redo()
{
    DBG_ASSERT( GetImpEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
    EditPaM aPaM = GetImpEditEngine()->SplitContent( nNode, nSepPos );
    GetImpEditEngine()->GetActiveView()->GetImpEditView()->SetEditSelection( EditSelection( aPaM, aPaM ) );
}

EditUndoInsertChars::EditUndoInsertChars( ImpEditEngine* _pImpEE, const EPaM& rEPaM, const XubString& rStr )
                    : EditUndo( EDITUNDO_INSERTCHARS, _pImpEE ),
                        aEPaM( rEPaM ), aText( rStr )
{
}

void EditUndoInsertChars::Undo()
{
    DBG_ASSERT( GetImpEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
    EditPaM aPaM( GetImpEditEngine()->CreateEditPaM( aEPaM ) );
    EditSelection aSel( aPaM, aPaM );
    aSel.Max().GetIndex() = aSel.Max().GetIndex() + aText.Len();
    EditPaM aNewPaM( GetImpEditEngine()->ImpDeleteSelection( aSel ) );
    GetImpEditEngine()->GetActiveView()->GetImpEditView()->SetEditSelection( EditSelection( aNewPaM, aNewPaM ) );
}

void EditUndoInsertChars::Redo()
{
    DBG_ASSERT( GetImpEditEngine()->GetActiveView(), "Undo/Redo: Keine Active View!" );
    EditPaM aPaM( GetImpEditEngine()->CreateEditPaM( aEPaM ) );
    GetImpEditEngine()->ImpInsertText( EditSelection( aPaM, aPaM ), aText );
    EditPaM aNewPaM( aPaM );
    aNewPaM.GetIndex() = aNewPaM.GetIndex() + aText.Len();
    GetImpEditEngine()->GetActiveView()->GetImpEditView()->SetEditSelection( EditSelection( aPaM, aNewPaM ) );
}

BOOL EditUndoInsertChars::Merge( SfxUndoAction* pNextAction )
{
    if ( !pNextAction->ISA( EditUndoInsertChars ) )
        return FALSE;

    EditUndoInsertChars* pNext = (EditUndoInsertChars*)pNextAction;

    if ( aEPaM.nPara != pNext->aEPaM.nPara )
        return FALSE;

    if ( ( aEPaM.nIndex + aText.Len() ) == pNext->aEPaM.nIndex )
    {
        aText += pNext->aText;
        return TRUE;
    }
    return FALSE;
}

EditUndoRemoveChars::EditUndoRemoveChars( ImpEditEngine* _pImpEE, const EPaM& rEPaM, const XubString& rStr )
                    : EditUndo( EDITUNDO_REMOVECHARS, _pImpEE ),
                        aEPaM( rEPaM ), aText( rStr )
{
}

void EditUndoRemoveChars::Undo()
{
    DBG_ASSERT( GetImpEditEngine()->GetActiveView(), "Undo/Redo: Keine Active View!" );
    EditPaM aPaM( GetImpEditEngine()->CreateEditPaM( aEPaM ) );
    EditSelection aSel( aPaM, aPaM );
    GetImpEditEngine()->ImpInsertText( aSel, aText );
    aSel.Max().GetIndex() = aSel.Max().GetIndex() + aText.Len();
    GetImpEditEngine()->GetActiveView()->GetImpEditView()->SetEditSelection( aSel );
}

void EditUndoRemoveChars::Redo()
{
    DBG_ASSERT( GetImpEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
    EditPaM aPaM( GetImpEditEngine()->CreateEditPaM( aEPaM ) );
    EditSelection aSel( aPaM, aPaM );
    aSel.Max().GetIndex() = aSel.Max().GetIndex() + aText.Len();
    EditPaM aNewPaM = GetImpEditEngine()->ImpDeleteSelection( aSel );
    GetImpEditEngine()->GetActiveView()->GetImpEditView()->SetEditSelection( aNewPaM );
}

EditUndoInsertFeature::EditUndoInsertFeature( ImpEditEngine* _pImpEE, const EPaM& rEPaM, const SfxPoolItem& rFeature)
                    : EditUndo( EDITUNDO_INSERTFEATURE, _pImpEE ), aEPaM( rEPaM )
{
    pFeature = rFeature.Clone();
    DBG_ASSERT( pFeature, "Feature could not be duplicated: EditUndoInsertFeature" );
}

EditUndoInsertFeature::~EditUndoInsertFeature()
{
    delete pFeature;
}

void EditUndoInsertFeature::Undo()
{
    DBG_ASSERT( GetImpEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
    EditPaM aPaM( GetImpEditEngine()->CreateEditPaM( aEPaM ) );
    EditSelection aSel( aPaM, aPaM );
    // Attributes are then corrected implicitly by the document ...
    aSel.Max().GetIndex()++;
    GetImpEditEngine()->ImpDeleteSelection( aSel );
    aSel.Max().GetIndex()--;	// For Selection
    GetImpEditEngine()->GetActiveView()->GetImpEditView()->SetEditSelection( aSel );
}

void EditUndoInsertFeature::Redo()
{
    DBG_ASSERT( GetImpEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
    EditPaM aPaM( GetImpEditEngine()->CreateEditPaM( aEPaM ) );
    EditSelection aSel( aPaM, aPaM );
    GetImpEditEngine()->ImpInsertFeature( aSel, *pFeature );
    if ( pFeature->Which() == EE_FEATURE_FIELD )
        GetImpEditEngine()->UpdateFields();
    aSel.Max().GetIndex()++;
    GetImpEditEngine()->GetActiveView()->GetImpEditView()->SetEditSelection( aSel );
}

EditUndoMoveParagraphs::EditUndoMoveParagraphs
                            ( ImpEditEngine* _pImpEE, const Range& rParas, USHORT n )
                            : 	EditUndo( EDITUNDO_MOVEPARAGRAPHS, _pImpEE ),
                                nParagraphs( rParas )
{
    nDest = n;
}

EditUndoMoveParagraphs::~EditUndoMoveParagraphs()
{
}

void EditUndoMoveParagraphs::Undo()
{
    DBG_ASSERT( GetImpEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
    Range aTmpRange( nParagraphs );
    long nTmpDest = aTmpRange.Min();

    long nDiff = ( nDest - aTmpRange.Min() );
    aTmpRange.Min() += nDiff;
    aTmpRange.Max() += nDiff;

    if ( nParagraphs.Min() < (long)nDest )
    {
        long nLen = aTmpRange.Len();
        aTmpRange.Min() -= nLen;
        aTmpRange.Max() -= nLen;
    }
    else
        nTmpDest += aTmpRange.Len();

    EditSelection aNewSel( GetImpEditEngine()->MoveParagraphs( aTmpRange, (USHORT)nTmpDest, 0 ) );
    GetImpEditEngine()->GetActiveView()->GetImpEditView()->SetEditSelection( aNewSel );
}

void EditUndoMoveParagraphs::Redo()
{
    DBG_ASSERT( GetImpEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
    EditSelection aNewSel( GetImpEditEngine()->MoveParagraphs( nParagraphs, nDest, 0 ) );
    GetImpEditEngine()->GetActiveView()->GetImpEditView()->SetEditSelection( aNewSel );
}

EditUndoSetStyleSheet::EditUndoSetStyleSheet( ImpEditEngine* _pImpEE, USHORT nP,
                        const XubString& rPrevName, SfxStyleFamily ePrevFam,
                        const XubString& rNewName, SfxStyleFamily eNewFam,
                        const SfxItemSet& rPrevParaAttribs )
    : EditUndo( EDITUNDO_STYLESHEET, _pImpEE ), aPrevName( rPrevName ), aNewName( rNewName ),
      aPrevParaAttribs( rPrevParaAttribs )
{
    ePrevFamily = ePrevFam;
    eNewFamily = eNewFam;
    nPara = nP;
}

EditUndoSetStyleSheet::~EditUndoSetStyleSheet()
{
}

void EditUndoSetStyleSheet::Undo()
{
    DBG_ASSERT( GetImpEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
    GetImpEditEngine()->SetStyleSheet( nPara, (SfxStyleSheet*)GetImpEditEngine()->GetStyleSheetPool()->Find( aPrevName, ePrevFamily ) );
    GetImpEditEngine()->SetParaAttribs( nPara, aPrevParaAttribs );
    lcl_DoSetSelection( GetImpEditEngine()->GetActiveView(), nPara );
}

void EditUndoSetStyleSheet::Redo()
{
    DBG_ASSERT( GetImpEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
    GetImpEditEngine()->SetStyleSheet( nPara, (SfxStyleSheet*)GetImpEditEngine()->GetStyleSheetPool()->Find( aNewName, eNewFamily ) );
    lcl_DoSetSelection( GetImpEditEngine()->GetActiveView(), nPara );
}

EditUndoSetParaAttribs::EditUndoSetParaAttribs( ImpEditEngine* _pImpEE, USHORT nP, const SfxItemSet& rPrevItems, const SfxItemSet& rNewItems )
    : EditUndo( EDITUNDO_PARAATTRIBS, _pImpEE ), 
      aPrevItems( rPrevItems ),
      aNewItems(rNewItems )
{
    nPara = nP;
}

EditUndoSetParaAttribs::~EditUndoSetParaAttribs()
{
}

void EditUndoSetParaAttribs::Undo()
{
    DBG_ASSERT( GetImpEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
    GetImpEditEngine()->SetParaAttribs( nPara, aPrevItems );
    lcl_DoSetSelection( GetImpEditEngine()->GetActiveView(), nPara );
}

void EditUndoSetParaAttribs::Redo()
{
    DBG_ASSERT( GetImpEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
    GetImpEditEngine()->SetParaAttribs( nPara, aNewItems );
    lcl_DoSetSelection( GetImpEditEngine()->GetActiveView(), nPara );
}

EditUndoSetAttribs::EditUndoSetAttribs( ImpEditEngine* _pImpEE, const ESelection& rESel, const SfxItemSet& rNewItems )
    : EditUndo( EDITUNDO_ATTRIBS, _pImpEE ), 
      aESel( rESel ),
      aNewAttribs( rNewItems )
{
    // When EditUndoSetAttribs actually is a RemoveAttribs this could be 
    // /recognize by the empty itemset, but then it would have to be caught in 
    // its own place, which possible a setAttribs does with an empty itemset. 
    bSetIsRemove = FALSE;
    bRemoveParaAttribs = FALSE;
    nRemoveWhich = 0;
    nSpecial = 0;
}

EditUndoSetAttribs::~EditUndoSetAttribs()
{
    // Get Items from Pool...
    SfxItemPool* pPool = aNewAttribs.GetPool();
    USHORT nContents = aPrevAttribs.Count();
    for ( USHORT n = 0; n < nContents; n++ )
    {
        ContentAttribsInfo* pInf = aPrevAttribs[n];
        DBG_ASSERT( pInf, "Undo_DTOR (SetAttribs): pInf = NULL!" );
        for ( USHORT nAttr = 0; nAttr < pInf->GetPrevCharAttribs().Count(); nAttr++ )
        {
            EditCharAttrib* pX = pInf->GetPrevCharAttribs()[nAttr];
            DBG_ASSERT( pX, "Undo_DTOR (SetAttribs): pX = NULL!" );
            pPool->Remove( *pX->GetItem() );
            delete pX;
        }
        delete pInf;
    }
}

void EditUndoSetAttribs::Undo()
{
    DBG_ASSERT( GetImpEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
    ImpEditEngine* _pImpEE = GetImpEditEngine();
    BOOL bFields = FALSE;
    for ( USHORT nPara = aESel.nStartPara; nPara <= aESel.nEndPara; nPara++ )
    {
        ContentAttribsInfo* pInf = aPrevAttribs[ (USHORT)(nPara-aESel.nStartPara) ];
        DBG_ASSERT( pInf, "Undo (SetAttribs): pInf = NULL!" );

        // first the paragraph attributes ...
        _pImpEE->SetParaAttribs( nPara, pInf->GetPrevParaAttribs() );

        // Then the character attributes ...
        // Remove all attributes including features, are later re-established.
        _pImpEE->RemoveCharAttribs( nPara, 0, TRUE );
        DBG_ASSERT( _pImpEE->GetEditDoc().SaveGetObject( nPara ), "Undo (SetAttribs): pNode = NULL!" );
        ContentNode* pNode = _pImpEE->GetEditDoc().GetObject( nPara );
        for ( USHORT nAttr = 0; nAttr < pInf->GetPrevCharAttribs().Count(); nAttr++ )
        {
            EditCharAttrib* pX = pInf->GetPrevCharAttribs()[nAttr];
            DBG_ASSERT( pX, "Redo (SetAttribs): pX = NULL!" );
            // is automatically "poolsized"
            _pImpEE->GetEditDoc().InsertAttrib( pNode, pX->GetStart(), pX->GetEnd(), *pX->GetItem() );
            if ( pX->Which() == EE_FEATURE_FIELD )
                bFields = TRUE;
        }
    }
    if ( bFields )
        _pImpEE->UpdateFields();
    ImpSetSelection( GetImpEditEngine()->GetActiveView() );
}

void EditUndoSetAttribs::Redo()
{
    DBG_ASSERT( GetImpEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
    ImpEditEngine* _pImpEE = GetImpEditEngine();

    EditSelection aSel( _pImpEE->CreateSel( aESel ) );
    if ( !bSetIsRemove )
        _pImpEE->SetAttribs( aSel, aNewAttribs, nSpecial );
    else
        _pImpEE->RemoveCharAttribs( aSel, bRemoveParaAttribs, nRemoveWhich );

    ImpSetSelection( GetImpEditEngine()->GetActiveView() );
}

void EditUndoSetAttribs::ImpSetSelection( EditView* /*pView*/ )
{
    ImpEditEngine* _pImpEE = GetImpEditEngine();
    EditSelection aSel( _pImpEE->CreateSel( aESel ) );
    GetImpEditEngine()->GetActiveView()->GetImpEditView()->SetEditSelection( aSel );
}

EditUndoTransliteration::EditUndoTransliteration( ImpEditEngine* _pImpEE, const ESelection& rESel, sal_Int32 nM )
    : EditUndo( EDITUNDO_TRANSLITERATE, _pImpEE ), aOldESel( rESel )
{
    nMode = nM;
    pTxtObj = NULL;
}

EditUndoTransliteration::~EditUndoTransliteration()
{
    delete pTxtObj;
}

void EditUndoTransliteration::Undo()
{
    DBG_ASSERT( GetImpEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );

    ImpEditEngine* _pImpEE = GetImpEditEngine();

    EditSelection aSel( _pImpEE->CreateSel( aNewESel ) );

    // Insert text, but don't expand Atribs at the current position:
    aSel = _pImpEE->DeleteSelected( aSel );
    EditSelection aDelSel( aSel );
    aSel = _pImpEE->InsertParaBreak( aSel );
    aDelSel.Max() = aSel.Min();
    aDelSel.Max().GetNode()->GetCharAttribs().DeleteEmptyAttribs( _pImpEE->GetEditDoc().GetItemPool() );
    EditSelection aNewSel;
    if ( pTxtObj )
    {
        aNewSel = _pImpEE->InsertText( *pTxtObj, aSel );
    }
    else
    {
        aNewSel = _pImpEE->InsertText( aSel, aText );
    }
    if ( aNewSel.Min().GetNode() == aDelSel.Max().GetNode() )
    {
        aNewSel.Min().SetNode( aDelSel.Min().GetNode() );
        aNewSel.Min().GetIndex() =
            aNewSel.Min().GetIndex() + aDelSel.Min().GetIndex();
    }
    if ( aNewSel.Max().GetNode() == aDelSel.Max().GetNode() )
    {
        aNewSel.Max().SetNode( aDelSel.Min().GetNode() );
        aNewSel.Max().GetIndex() =
            aNewSel.Max().GetIndex() + aDelSel.Min().GetIndex();
    }
    _pImpEE->DeleteSelected( aDelSel );

    GetImpEditEngine()->GetActiveView()->GetImpEditView()->SetEditSelection( aNewSel );
}

void EditUndoTransliteration::Redo()
{
    DBG_ASSERT( GetImpEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
    ImpEditEngine* _pImpEE = GetImpEditEngine();

    EditSelection aSel( _pImpEE->CreateSel( aOldESel ) );
    EditSelection aNewSel = _pImpEE->TransliterateText( aSel, nMode );
    GetImpEditEngine()->GetActiveView()->GetImpEditView()->SetEditSelection( aNewSel );
}

EditUndoMarkSelection::EditUndoMarkSelection( ImpEditEngine* _pImpEE, const ESelection& rSel )
    : EditUndo( EDITUNDO_MARKSELECTION, _pImpEE ), aSelection( rSel )
{
}

EditUndoMarkSelection::~EditUndoMarkSelection()
{
}

void EditUndoMarkSelection::Undo()
{
    DBG_ASSERT( GetImpEditEngine()->GetActiveView(), "Undo/Redo: No Active View!" );
    if ( GetImpEditEngine()->GetActiveView() ) 
    {
        if ( GetImpEditEngine()->IsFormatted() )
            GetImpEditEngine()->GetActiveView()->SetSelection( aSelection );
        else
            GetImpEditEngine()->GetActiveView()->GetImpEditView()->SetEditSelection( GetImpEditEngine()->CreateSel( aSelection ) );
    }
}

void EditUndoMarkSelection::Redo()
{
    // For redo unimportant, because at the beginning of the undo parentheses
}

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */