libreoffice/sw/source/core/objectpositioning/environmentofanchoredobject.cxx

/*************************************************************************
 *
 *  $RCSfile: environmentofanchoredobject.cxx,v $
 *
 *  $Revision: 1.4 $
 *
 *  last change: $Author: vg $ $Date: 2005-02-16 17:01:46 $
 *
 *  The Contents of this file are made available subject to the terms of
 *  either of the following licenses
 *
 *         - GNU Lesser General Public License Version 2.1
 *         - Sun Industry Standards Source License Version 1.1
 *
 *  Sun Microsystems Inc., October, 2000
 *
 *  GNU Lesser General Public License Version 2.1
 *  =============================================
 *  Copyright 2000 by Sun Microsystems, Inc.
 *  901 San Antonio Road, Palo Alto, CA 94303, USA
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
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 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
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 *  Lesser General Public License for more details.
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 *  License along with this library; if not, write to the Free Software
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 *
 *
 *  Sun Industry Standards Source License Version 1.1
 *  =================================================
 *  The contents of this file are subject to the Sun Industry Standards
 *  Source License Version 1.1 (the "License"); You may not use this file
 *  except in compliance with the License. You may obtain a copy of the
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 ************************************************************************/
#ifndef _ENVIRONMENTOFANCHOREDOBJECT
#include <environmentofanchoredobject.hxx>
#endif

#ifndef _FRAME_HXX
#include <frame.hxx>
#endif
#ifndef _PAGEFRM_HXX
#include <pagefrm.hxx>
#endif
#ifndef _FLYFRM_HXX
#include <flyfrm.hxx>
#endif

using namespace objectpositioning;

SwEnvironmentOfAnchoredObject::SwEnvironmentOfAnchoredObject(
                                                const bool   _bFollowTextFlow )
    : mbFollowTextFlow( _bFollowTextFlow )
{}

SwEnvironmentOfAnchoredObject::~SwEnvironmentOfAnchoredObject()
{}

/** determine environment layout frame for possible horizontal object positions

    OD 05.11.2003

    @author OD
*/
const SwLayoutFrm& SwEnvironmentOfAnchoredObject::GetHoriEnvironmentLayoutFrm(
                                            const SwFrm& _rHoriOrientFrm ) const
{
    const SwFrm* pHoriEnvironmentLayFrm = &_rHoriOrientFrm;

    if ( !mbFollowTextFlow )
    {
        // --> OD 2005-01-20 #118546# - no exception any more for page alignment.
        // the page frame determines the horizontal layout environment.
        pHoriEnvironmentLayFrm = _rHoriOrientFrm.FindPageFrm();
        // <--
    }
    else
    {
        while ( !pHoriEnvironmentLayFrm->IsCellFrm() &&
                !pHoriEnvironmentLayFrm->IsFlyFrm() &&
                !pHoriEnvironmentLayFrm->IsPageFrm() )
        {
            pHoriEnvironmentLayFrm = pHoriEnvironmentLayFrm->GetUpper();
            ASSERT( pHoriEnvironmentLayFrm,
                    "SwEnvironmentOfAnchoredObject::GetHoriEnvironmentLayoutFrm(..) - no page|fly|cell frame found" );
        }
    }

    ASSERT( pHoriEnvironmentLayFrm->ISA(SwLayoutFrm),
                "SwEnvironmentOfAnchoredObject::GetHoriEnvironmentLayoutFrm(..) - found frame isn't a layout frame" );

    return static_cast<const SwLayoutFrm&>(*pHoriEnvironmentLayFrm);
}

/** determine environment layout frame for possible vertical object positions

    OD 05.11.2003

    @author OD
*/
const SwLayoutFrm& SwEnvironmentOfAnchoredObject::GetVertEnvironmentLayoutFrm(
                                            const SwFrm& _rVertOrientFrm ) const
{
    const SwFrm* pVertEnvironmentLayFrm = &_rVertOrientFrm;

    if ( !mbFollowTextFlow )
    {
        // --> OD 2005-01-20 #118546# - no exception any more for page alignment.
        // the page frame determines the vertical layout environment.
        pVertEnvironmentLayFrm = _rVertOrientFrm.FindPageFrm();
        // <--
    }
    else
    {
        while ( !pVertEnvironmentLayFrm->IsCellFrm() &&
                !pVertEnvironmentLayFrm->IsFlyFrm() &&
                !pVertEnvironmentLayFrm->IsHeaderFrm() &&
                !pVertEnvironmentLayFrm->IsFooterFrm() &&
                !pVertEnvironmentLayFrm->IsFtnFrm() &&
                !pVertEnvironmentLayFrm->IsPageBodyFrm() &&
                !pVertEnvironmentLayFrm->IsPageFrm() )
        {
            pVertEnvironmentLayFrm = pVertEnvironmentLayFrm->GetUpper();
            ASSERT( pVertEnvironmentLayFrm,
                    "SwEnvironmentOfAnchoredObject::GetVertEnvironmentLayoutFrm(..) - proposed frame not found" );
        }
    }

    ASSERT( pVertEnvironmentLayFrm->ISA(SwLayoutFrm),
                "SwEnvironmentOfAnchoredObject::GetVertEnvironmentLayoutFrm(..) - found frame isn't a layout frame" );

    return static_cast<const SwLayoutFrm&>(*pVertEnvironmentLayFrm);
}