/* -*- 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 .
 */
#ifndef INCLUDED_SW_SOURCE_CORE_TEXT_REDLNITR_HXX
#define INCLUDED_SW_SOURCE_CORE_TEXT_REDLNITR_HXX

#include "ndhints.hxx"

#include <IDocumentRedlineAccess.hxx>

#include "swfont.hxx"
#include <vector>

class SwTextNode;
class SwDoc;
class SfxItemSet;
class SwAttrHandler;

class SwExtend
{
    SwFont *pFnt;
    const std::vector<sal_uInt16> &rArr;    // XAMA: Array of sal_uInt16
    sal_Int32 nStart;
    sal_Int32 nPos;
    sal_Int32 nEnd;
    bool _Leave( SwFont& rFnt, sal_Int32 nNew );
    bool Inside() const { return ( nPos >= nStart && nPos < nEnd ); }
    static void ActualizeFont( SwFont &rFnt, sal_uInt16 nAttr );
public:
    SwExtend( const std::vector<sal_uInt16> &rA, sal_Int32 nSt ) : pFnt(nullptr), rArr( rA ),
        nStart( nSt ), nPos( COMPLETE_STRING ), nEnd( nStart + rA.size() ) {}
    ~SwExtend() { delete pFnt; }
    bool IsOn() const { return pFnt != nullptr; }
    void Reset() { if( pFnt ) { delete pFnt; pFnt = nullptr; } nPos = COMPLETE_STRING; }
    bool Leave( SwFont& rFnt, sal_Int32 nNew )
        { return pFnt && _Leave( rFnt, nNew ); }
    short Enter( SwFont& rFnt, sal_Int32 nNew );
    sal_Int32 Next( sal_Int32 nNext );
    SwFont* GetFont()  { return pFnt; }
    void UpdateFont( SwFont &rFnt ) { ActualizeFont( rFnt, rArr[ nPos - nStart ] ); }
};

class SwRedlineItr
{
    std::deque<SwTextAttr *> m_Hints;
    const SwDoc& rDoc;
    SwAttrHandler& rAttrHandler;
    SfxItemSet *pSet;
    SwExtend *pExt;
    sal_uLong nNdIdx;
    sal_Int32 nFirst;
    sal_Int32 nAct;
    sal_Int32 nStart;
    sal_Int32 nEnd;
    bool bOn;
    bool bShow;

    void _Clear( SwFont* pFnt );
    bool _ChkSpecialUnderline() const;
    void FillHints( sal_uInt16 nAuthor, RedlineType_t eType );
    short _Seek( SwFont& rFnt, sal_Int32 nNew, sal_Int32 nOld );
    sal_Int32 _GetNextRedln( sal_Int32 nNext );
    short EnterExtend( SwFont& rFnt, sal_Int32 nNew )
        { if( pExt ) return pExt->Enter( rFnt, nNew ); return 0; }
    sal_Int32 NextExtend( sal_Int32 nNext )
        { if( pExt ) return pExt->Next( nNext ); return nNext; }
public:
    SwRedlineItr( const SwTextNode& rTextNd, SwFont& rFnt, SwAttrHandler& rAH,
        sal_Int32 nRedlPos, bool bShw, const std::vector<sal_uInt16> *pArr = nullptr,
        sal_Int32 nExtStart = COMPLETE_STRING );
    ~SwRedlineItr();
    inline bool IsOn() const { return bOn || ( pExt && pExt->IsOn() ); }
    inline void Clear( SwFont* pFnt ) { if( bOn ) _Clear( pFnt ); }
    void ChangeTextAttr( SwFont* pFnt, SwTextAttr &rHt, bool bChg );
    inline short Seek( SwFont& rFnt, sal_Int32 nNew, sal_Int32 nOld )
        { if( bShow || pExt ) return _Seek( rFnt, nNew, nOld ); return 0; }
    inline void Reset() { if( nAct != nFirst ) nAct = COMPLETE_STRING;
                          if( pExt ) pExt->Reset(); }
    inline sal_Int32 GetNextRedln( sal_Int32 nNext )
        { if( bShow || pExt ) return _GetNextRedln( nNext ); return nNext; }
    inline bool ChkSpecialUnderline() const
        { return IsOn() && _ChkSpecialUnderline(); }
    bool CheckLine( sal_Int32 nChkStart, sal_Int32 nChkEnd );
    inline bool LeaveExtend( SwFont& rFnt, sal_Int32 nNew )
        { return pExt->Leave(rFnt, nNew ); }
    inline bool ExtOn() { if( pExt ) return pExt->IsOn(); return false; }
    inline void UpdateExtFont( SwFont &rFnt ) {
        OSL_ENSURE( ExtOn(), "UpdateExtFont without ExtOn" );
        pExt->UpdateFont( rFnt ); }
};

#endif

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