/* -*- 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_INC_FMTPDSC_HXX

#define INCLUDED_SW_INC_FMTPDSC_HXX

#include <svl/poolitem.hxx>

#include "swdllapi.h"

#include "hintids.hxx"

#include "format.hxx"

#include "calbck.hxx"

#include <optional>

#include "pagedesc.hxx"

/**

    SwFormatPageDesc ("use this page style with xyz parameters") is the wrapper

    around SwPageDesc ("page style"),

    multiple SwFormatPageDesc can refer to the same SwPageDesc.

 */

class SW_DLLPUBLIC SwFormatPageDesc final : public SfxPoolItem, public SwClient

{

    ::std::optional<sal_uInt16> m_oNumOffset;          ///< Offset page number.

    sw::BroadcastingModify* m_pDefinedIn;       /**< Points to the object in which the

                                 attribute was set (ContentNode/Format). */

    virtual void SwClientNotify( const SwModify&, const SfxHint& rHint ) override;

public:

    DECLARE_ITEM_TYPE_FUNCTION(SwFormatPageDesc)

    explicit SwFormatPageDesc( const SwPageDesc *pDesc = nullptr );

    SwFormatPageDesc( const SwFormatPageDesc &rCpy );

    SwFormatPageDesc &operator=( const SwFormatPageDesc &rCpy );

    virtual ~SwFormatPageDesc() override;

    /// "Pure virtual methods" of SfxPoolItem.

    virtual bool            operator==( const SfxPoolItem& ) const override;

    virtual bool            supportsHashCode() const override { return true; }

    virtual size_t          hashCode() const override;

    virtual SwFormatPageDesc* Clone( SfxItemPool* pPool = nullptr ) const override;

    virtual bool GetPresentation( SfxItemPresentation ePres,

                                  MapUnit eCoreMetric,

                                  MapUnit ePresMetric,

                                  OUString &rText,

                                  const IntlWrapper& rIntl ) const override;

    virtual bool QueryValue( css::uno::Any& rVal, sal_uInt8 nMemberId = 0 ) const override;

    virtual bool PutValue( const css::uno::Any& rVal, sal_uInt8 nMemberId ) override;

          SwPageDesc *GetPageDesc() { return static_cast<SwPageDesc*>(GetRegisteredIn()); }

    const SwPageDesc *GetPageDesc() const { return static_cast<const SwPageDesc*>(GetRegisteredIn()); }

    const ::std::optional<sal_uInt16>&  GetNumOffset() const        { return m_oNumOffset; }

    void    SetNumOffset( const ::std::optional<sal_uInt16>& oNum ) { ASSERT_CHANGE_REFCOUNTED_ITEM; m_oNumOffset = oNum; }

    /// Query / set where attribute is anchored.

    const sw::BroadcastingModify* GetDefinedIn() const { return m_pDefinedIn; }

    void ChgDefinedIn( const sw::BroadcastingModify* pNew ) { m_pDefinedIn = const_cast<sw::BroadcastingModify*>(pNew); }

    void RegisterToPageDesc( SwPageDesc& );

    bool KnowsPageDesc() const;

    void dumpAsXml(xmlTextWriterPtr pWriter) const override;

};

inline const SwFormatPageDesc &SwAttrSet::GetPageDesc(bool bInP) const

    { return Get( RES_PAGEDESC,bInP); }

inline const SwFormatPageDesc &SwFormat::GetPageDesc(bool bInP) const

    { return m_aSet.GetPageDesc(bInP); }

#endif

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