environmentofanchoredobject.cxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 *   Licensed to the Apache Software Foundation (ASF) under one or more
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#include <environmentofanchoredobject.hxx>
#include <frame.hxx>
#include <pagefrm.hxx>
#include <osl/diagnose.h>

using namespace objectpositioning;

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

SwEnvironmentOfAnchoredObject::~SwEnvironmentOfAnchoredObject()
{}

const SwLayoutFrame& SwEnvironmentOfAnchoredObject::GetHoriEnvironmentLayoutFrame(
                                            const SwFrame& _rHoriOrientFrame ) const
{
    const SwFrame* pHoriEnvironmentLayFrame = &_rHoriOrientFrame;

    if ( !mbFollowTextFlow )
    {
        // No exception any more for page alignment.
        // the page frame determines the horizontal layout environment.
        pHoriEnvironmentLayFrame = _rHoriOrientFrame.FindPageFrame();
    }
    else
    {
        while ( !pHoriEnvironmentLayFrame->IsCellFrame() &&
                !pHoriEnvironmentLayFrame->IsFlyFrame() &&
                !pHoriEnvironmentLayFrame->IsPageFrame() )
        {
            pHoriEnvironmentLayFrame = pHoriEnvironmentLayFrame->GetUpper();
            OSL_ENSURE( pHoriEnvironmentLayFrame,
                    "SwEnvironmentOfAnchoredObject::GetHoriEnvironmentLayoutFrame(..) - no page|fly|cell frame found" );
        }
    }

    OSL_ENSURE( dynamic_cast< const SwLayoutFrame *>( pHoriEnvironmentLayFrame ) !=  nullptr,
                "SwEnvironmentOfAnchoredObject::GetHoriEnvironmentLayoutFrame(..) - found frame isn't a layout frame" );

    return static_cast<const SwLayoutFrame&>(*pHoriEnvironmentLayFrame);
}

const SwLayoutFrame& SwEnvironmentOfAnchoredObject::GetVertEnvironmentLayoutFrame(
                                            const SwFrame& _rVertOrientFrame ) const
{
    const SwFrame* pVertEnvironmentLayFrame = &_rVertOrientFrame;

    if ( !mbFollowTextFlow )
    {
        // No exception any more for page alignment.
        // the page frame determines the vertical layout environment.
        pVertEnvironmentLayFrame = _rVertOrientFrame.FindPageFrame();
    }
    else
    {
        while ( !pVertEnvironmentLayFrame->IsCellFrame() &&
                !pVertEnvironmentLayFrame->IsFlyFrame() &&
                !pVertEnvironmentLayFrame->IsHeaderFrame() &&
                !pVertEnvironmentLayFrame->IsFooterFrame() &&
                !pVertEnvironmentLayFrame->IsFootnoteFrame() &&
                !pVertEnvironmentLayFrame->IsPageBodyFrame() &&
                !pVertEnvironmentLayFrame->IsPageFrame() )
        {
            pVertEnvironmentLayFrame = pVertEnvironmentLayFrame->GetUpper();
            OSL_ENSURE( pVertEnvironmentLayFrame,
                    "SwEnvironmentOfAnchoredObject::GetVertEnvironmentLayoutFrame(..) - proposed frame not found" );
        }
    }

    OSL_ENSURE( dynamic_cast< const SwLayoutFrame *>( pVertEnvironmentLayFrame ) !=  nullptr,
                "SwEnvironmentOfAnchoredObject::GetVertEnvironmentLayoutFrame(..) - found frame isn't a layout frame" );

    return static_cast<const SwLayoutFrame&>(*pVertEnvironmentLayFrame);
}

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