rtattributes.hxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 *
 * 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
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 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
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 */
 
#pragma once
 
#include <sal/types.h>
#include <svl/poolitem.hxx>
 
namespace frm
{
 
    typedef sal_Int32   AttributeId;
    typedef sal_uInt16      WhichId;
    typedef sal_uInt16      SfxSlotId;
 
    enum AttributeCheckState
    {
        eChecked,
        eUnchecked,
        eIndetermined
    };
 
    struct AttributeState
    {
    private:
        std::unique_ptr<SfxPoolItem>  pItemHandleItem;
 
    public:
        AttributeCheckState eSimpleState;
 
        inline          AttributeState( );
        inline explicit AttributeState( AttributeCheckState _eCheckState );
        inline          AttributeState( const AttributeState& _rSource );
 
        inline AttributeState& operator=( const AttributeState& _rSource );
 
        inline bool operator==( const AttributeState& _rRHS );
 
        inline const SfxPoolItem* getItem() const;
        inline void setItem( const SfxPoolItem* _pItem );
    };
 
    inline AttributeState::AttributeState( )
        :eSimpleState( eIndetermined )
    {
    }
 
    inline AttributeState::AttributeState( AttributeCheckState _eCheckState )
        :eSimpleState( _eCheckState )
    {
    }
 
    inline AttributeState::AttributeState( const AttributeState& _rSource )
        :eSimpleState( eIndetermined )
    {
        operator=( _rSource );
    }
 
    inline AttributeState& AttributeState::operator=( const AttributeState& _rSource )
    {
        if ( &_rSource == this )
            return *this;
 
        eSimpleState = _rSource.eSimpleState;
        setItem( _rSource.getItem() );
        return *this;
    }
 
    inline const SfxPoolItem* AttributeState::getItem() const
    {
        return pItemHandleItem.get();
    }
 
    inline void AttributeState::setItem( const SfxPoolItem* _pItem )
    {
        if ( _pItem )
            pItemHandleItem.reset(_pItem->Clone());
        else
            pItemHandleItem.reset();
    }
 
    inline bool AttributeState::operator==( const AttributeState& _rRHS )
    {
        if ( eSimpleState != _rRHS.eSimpleState )
            return false;
 
        if ( pItemHandleItem && !_rRHS.pItemHandleItem )
            return false;
 
        if ( !pItemHandleItem && _rRHS.pItemHandleItem )
            return false;
 
        if ( pItemHandleItem == _rRHS.pItemHandleItem )
            return true;
 
        assert(pItemHandleItem && _rRHS.pItemHandleItem && "otherwise have already returned");
 
        return *pItemHandleItem == *_rRHS.pItemHandleItem;
    }
 
    class IMultiAttributeDispatcher
    {
    public:
        virtual AttributeState  getState( AttributeId _nAttributeId ) const = 0;
        virtual void            executeAttribute( AttributeId _nAttributeId, const SfxPoolItem* _pArgument ) = 0;
 
    protected:
        ~IMultiAttributeDispatcher() {}
    };
 
} // namespace frm
 
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