/**************************************************************
 * 
 * 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
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/



#ifndef SW_UNDO_OVERWRITE_HXX
#define SW_UNDO_OVERWRITE_HXX

#include <undobj.hxx>

#include <com/sun/star/uno/Sequence.h>


class SwRedlineSaveDatas;
class SwTxtNode;

namespace utl {
    class TransliterationWrapper;
}


class SwUndoOverwrite: public SwUndo, private SwUndoSaveCntnt
{
    String aDelStr, aInsStr;
    SwRedlineSaveDatas* pRedlSaveData;
    sal_uLong nSttNode;
    xub_StrLen nSttCntnt;
    sal_Bool bInsChar : 1;  // no Overwrite, but Insert
    sal_Bool bGroup : 1;    // TRUE: is already grouped; evaluated in CanGrouping()

public:
    SwUndoOverwrite( SwDoc*, SwPosition&, sal_Unicode cIns );

    virtual ~SwUndoOverwrite();

    virtual void UndoImpl( ::sw::UndoRedoContext & );
    virtual void RedoImpl( ::sw::UndoRedoContext & );
    virtual void RepeatImpl( ::sw::RepeatContext & );

    // #111827#
    /**
       Returns the rewriter of this undo object.

       The rewriter contains the following rule:

           $1 -> '<overwritten text>'

       <overwritten text> is shortened to nUndoStringLength characters.

       @return the rewriter of this undo object
     */
    virtual SwRewriter GetRewriter() const;

    sal_Bool CanGrouping( SwDoc*, SwPosition&, sal_Unicode cIns );
};

//--------------------------------------------------------------------

struct _UndoTransliterate_Data;
class SwUndoTransliterate : public SwUndo, public SwUndRng
{
    std::vector< _UndoTransliterate_Data * >    aChanges;
    sal_uInt32 nType;

    void DoTransliterate(SwDoc & rDoc, SwPaM & rPam);

public:
    SwUndoTransliterate( const SwPaM& rPam,
                            const utl::TransliterationWrapper& rTrans );

    virtual ~SwUndoTransliterate();

    virtual void UndoImpl( ::sw::UndoRedoContext & );
    virtual void RedoImpl( ::sw::UndoRedoContext & );
    virtual void RepeatImpl( ::sw::RepeatContext & );

    void AddChanges( SwTxtNode& rTNd, xub_StrLen nStart, xub_StrLen nLen,
                     ::com::sun::star::uno::Sequence <sal_Int32>& rOffsets );
    sal_Bool HasData() const { return aChanges.size() > 0; }
};

#endif // SW_UNDO_OVERWRITE_HXX