libreoffice/sw/source/core/layout/objectformatterlayfrm.cxx

/*************************************************************************
 *
 *  $RCSfile: objectformatterlayfrm.cxx,v $
 *
 *  $Revision: 1.5 $
 *
 *  last change: $Author: kz $ $Date: 2005-01-21 10:37:43 $
 *
 *  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
 *  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
 *
 *
 *  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
 *  License at http://www.openoffice.org/license.html.
 *
 *  Software provided under this License is provided on an "AS IS" basis,
 *  WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
 *  WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
 *  MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
 *  See the License for the specific provisions governing your rights and
 *  obligations concerning the Software.
 *
 *  The Initial Developer of the Original Code is: Sun Microsystems, Inc.
 *
 *  Copyright: 2000 by Sun Microsystems, Inc.
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 *  All Rights Reserved.
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 *  Contributor(s): _______________________________________
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 *
 ************************************************************************/
#ifndef _OBJECTFORMATTERLAYFRM_HXX
#include <objectformatterlayfrm.hxx>
#endif

#ifndef _ANCHOREDOBJECT_HXX
#include <anchoredobject.hxx>
#endif
#ifndef _SORTEDOBJS_HXX
#include <sortedobjs.hxx>
#endif

#ifndef _LAYFRM_HXX
#include <layfrm.hxx>
#endif
#ifndef _PAGEFRM_HXX
#include <pagefrm.hxx>
#endif

// =============================================================================
// implementation of class <SwObjectFormatterLayFrm>
// =============================================================================
SwObjectFormatterLayFrm::SwObjectFormatterLayFrm( SwLayoutFrm& _rAnchorLayFrm,
                                                  const SwPageFrm& _rPageFrm,
                                                  SwLayAction* _pLayAction )
    : SwObjectFormatter( _rPageFrm, _pLayAction ),
      mrAnchorLayFrm( _rAnchorLayFrm )
{
}

SwObjectFormatterLayFrm::~SwObjectFormatterLayFrm()
{
}

SwObjectFormatterLayFrm* SwObjectFormatterLayFrm::CreateObjFormatter(
                                                SwLayoutFrm& _rAnchorLayFrm,
                                                const SwPageFrm& _rPageFrm,
                                                SwLayAction* _pLayAction )
{
    if ( !_rAnchorLayFrm.IsPageFrm() &&
         !_rAnchorLayFrm.IsFlyFrm() )
    {
        ASSERT( false,
                "<SwObjectFormatterLayFrm::CreateObjFormatter(..)> - unexcepted type of anchor frame " );
        return 0L;
    }

    SwObjectFormatterLayFrm* pObjFormatter = 0L;

    // create object formatter, if floating screen objects are registered at
    // given anchor layout frame.
    if ( _rAnchorLayFrm.GetDrawObjs() ||
         ( _rAnchorLayFrm.IsPageFrm() &&
            static_cast<SwPageFrm&>(_rAnchorLayFrm).GetSortedObjs() ) )
    {
        pObjFormatter =
            new SwObjectFormatterLayFrm( _rAnchorLayFrm, _rPageFrm, _pLayAction );
    }

    return pObjFormatter;
}

SwFrm& SwObjectFormatterLayFrm::GetAnchorFrm()
{
    return mrAnchorLayFrm;
}

// --> OD 2005-01-10 #i40147# - add parameter <_bCheckForMovedFwd>.
// Not relevant for objects anchored at layout frame.
bool SwObjectFormatterLayFrm::DoFormatObj( SwAnchoredObject& _rAnchoredObj,
                                           const bool _bCheckForMovedFwd )
// <--
{
    _FormatObj( _rAnchoredObj );

    return true;
}

bool SwObjectFormatterLayFrm::DoFormatObjs()
{
    bool bSuccess( true );

    bSuccess = _FormatObjsAtFrm();

    if ( GetAnchorFrm().IsPageFrm() )
    {
        // anchor layout frame is a page frame.
        // Thus, format also all anchored objects, which are registered at
        // this page frame, whose 'anchor' isn't on this page frame and whose
        // anchor frame is valid.
        bSuccess = _AdditionalFormatObjsOnPage();
    }

    return bSuccess;
}

/** method to format all anchored objects, which are registered at
    the page frame, whose 'anchor' isn't on this page frame and whose
    anchor frame is valid.

    OD 2004-07-02 #i28701#

    @author
*/
bool SwObjectFormatterLayFrm::_AdditionalFormatObjsOnPage()
{
    if ( !GetAnchorFrm().IsPageFrm() )
    {
        ASSERT( false,
                "<SwObjectFormatterLayFrm::_AdditionalFormatObjsOnPage()> - mis-usage of method, call only for anchor frames of type page frame" );
        return true;
    }
    SwPageFrm& rPageFrm = static_cast<SwPageFrm&>(GetAnchorFrm());

    if ( !rPageFrm.GetSortedObjs() )
    {
        // nothing to do, if no floating screen object is registered at the anchor frame.
        return true;
    }

    bool bSuccess( true );

    sal_uInt32 i = 0;
    for ( ; i < rPageFrm.GetSortedObjs()->Count(); ++i )
    {
        SwAnchoredObject* pAnchoredObj = (*rPageFrm.GetSortedObjs())[i];

        // --> OD 2004-09-23 #i33751#, #i34060# - method <GetPageFrmOfAnchor()>
        // is replaced by method <FindPageFrmOfAnchor()>. It's return value
        // have to be checked.
        SwPageFrm* pPageFrmOfAnchor = pAnchoredObj->FindPageFrmOfAnchor();
        // --> OD 2004-10-08 #i26945# - check, if the page frame of the
        // object's anchor frame isn't the given page frame
        ASSERT( pPageFrmOfAnchor,
                "<SwObjectFormatterLayFrm::_AdditionalFormatObjsOnPage()> - missing page frame" )
        if ( pPageFrmOfAnchor &&
             // --> OD 2004-10-22 #i35911#
             pPageFrmOfAnchor->GetPhyPageNum() < rPageFrm.GetPhyPageNum() )
             // <--
        // <--
        {
            // if format of object fails, stop formatting and pass fail to
            // calling method via the return value.
            if ( !DoFormatObj( *pAnchoredObj ) )
            {
                bSuccess = false;
                break;
            }

            // considering changes at <GetAnchorFrm().GetDrawObjs()> during
            // format of the object.
            if ( !rPageFrm.GetSortedObjs() ||
                 i > rPageFrm.GetSortedObjs()->Count() )
            {
                break;
            }
            else
            {
                sal_uInt32 nActPosOfObj =
                    rPageFrm.GetSortedObjs()->ListPosOf( *pAnchoredObj );
                if ( nActPosOfObj == rPageFrm.GetSortedObjs()->Count() ||
                     nActPosOfObj > i )
                {
                    --i;
                }
                else if ( nActPosOfObj < i )
                {
                    i = nActPosOfObj;
                }
            }
        }
    } // end of loop on <rPageFrm.GetSortedObjs()>

    return bSuccess;
}