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

/*************************************************************************
 *
 *  OpenOffice.org - a multi-platform office productivity suite
 *
 *  $RCSfile: environmentofanchoredobject.cxx,v $
 *
 *  $Revision: 1.6 $
 *
 *  last change: $Author: obo $ $Date: 2006-09-16 21:26:09 $
 *
 *  The Contents of this file are made available subject to
 *  the terms of GNU Lesser General Public License Version 2.1.
 *
 *
 *    GNU Lesser General Public License Version 2.1
 *    =============================================
 *    Copyright 2005 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
 *    License version 2.1, as published by the Free Software Foundation.
 *
 *    This library is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *    Lesser General Public License for more details.
 *
 *    You should have received a copy of the GNU Lesser General Public
 *    License along with this library; if not, write to the Free Software
 *    Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *    MA  02111-1307  USA
 *
 ************************************************************************/

// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_sw.hxx"
#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);
}