xref: /aoo42x/main/editeng/source/accessibility/AccessibleImageBullet.cxx (revision 190118d0)

/**************************************************************
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 *
 *************************************************************/



// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_editeng.hxx"
#include <tools/gen.hxx>
#include <vos/mutex.hxx>
#include <vcl/svapp.hxx>
#include <rtl/ustring.hxx>
#include <com/sun/star/awt/Point.hpp>
#include <com/sun/star/awt/Rectangle.hpp>
#include <com/sun/star/lang/DisposedException.hpp>
#include <com/sun/star/accessibility/AccessibleRole.hpp>
#include <com/sun/star/accessibility/AccessibleTextType.hpp>
#include <com/sun/star/accessibility/AccessibleStateType.hpp>
#include <com/sun/star/accessibility/AccessibleEventId.hpp>
#include <comphelper/accessibleeventnotifier.hxx>
#include <unotools/accessiblestatesethelper.hxx>
#include <editeng/unolingu.hxx>
#include "editeng/AccessibleEditableTextPara.hxx"
#include "editeng/AccessibleImageBullet.hxx"
#include <editeng/eerdll.hxx>

#include <editeng/editdata.hxx>
#include <editeng/editeng.hxx>
#include <editeng/outliner.hxx>
#include "editeng.hrc"
#include <svtools/colorcfg.hxx>


using namespace ::com::sun::star;
using namespace ::com::sun::star::accessibility;

namespace accessibility
{
    DBG_NAME( AccessibleImageBullet )

    AccessibleImageBullet::AccessibleImageBullet ( const uno::Reference< XAccessible >& rParent ) :
        mnParagraphIndex( 0 ),
        mnIndexInParent( 0 ),
        mpEditSource( NULL ),
        maEEOffset( 0, 0 ),
        mxParent( rParent ),
        // well, that's strictly (UNO) exception safe, though not
        // really robust. We rely on the fact that this member is
        // constructed last, and that the constructor body catches
        // exceptions, thus no chance for exceptions once the Id is
        // fetched. Nevertheless, normally should employ RAII here...
        mnNotifierClientId(::comphelper::AccessibleEventNotifier::registerClient())
    {
#ifdef DBG_UTIL
        DBG_CTOR( AccessibleImageBullet, NULL );
        OSL_TRACE( "Received ID: %d", mnNotifierClientId );
#endif

        try
        {
            // Create the state set.
            ::utl::AccessibleStateSetHelper* pStateSet  = new ::utl::AccessibleStateSetHelper ();
            mxStateSet = pStateSet;

            // these are always on
            pStateSet->AddState( AccessibleStateType::VISIBLE );
            pStateSet->AddState( AccessibleStateType::SHOWING );
            pStateSet->AddState( AccessibleStateType::ENABLED );
            pStateSet->AddState( AccessibleStateType::SENSITIVE );
        }
        catch( const uno::Exception& ) {}
    }

    AccessibleImageBullet::~AccessibleImageBullet()
    {
        DBG_DTOR( AccessibleImageBullet, NULL );

        // sign off from event notifier
        if( getNotifierClientId() != -1 )
        {
            try
            {
                ::comphelper::AccessibleEventNotifier::revokeClient( getNotifierClientId() );
#ifdef DBG_UTIL
                OSL_TRACE( "AccessibleImageBullet revoked ID: %d\n", mnNotifierClientId );
#endif
            }
            catch( const uno::Exception& ) {}
        }
    }

    uno::Any SAL_CALL AccessibleImageBullet::queryInterface (const uno::Type & rType) throw (uno::RuntimeException)
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        return AccessibleImageBulletInterfaceBase::queryInterface(rType);
    }

    uno::Reference< XAccessibleContext > SAL_CALL AccessibleImageBullet::getAccessibleContext(  ) throw (uno::RuntimeException)
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        // We implement the XAccessibleContext interface in the same object
        return uno::Reference< XAccessibleContext > ( this );
    }

    sal_Int32 SAL_CALL  AccessibleImageBullet::getAccessibleChildCount() throw (uno::RuntimeException)
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        return 0;
    }

    uno::Reference< XAccessible > SAL_CALL  AccessibleImageBullet::getAccessibleChild( sal_Int32 i ) throw (lang::IndexOutOfBoundsException, uno::RuntimeException)
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );
        (void)i;

        throw lang::IndexOutOfBoundsException(::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("No childs available")),
                                              uno::Reference< uno::XInterface >
                                              ( static_cast< ::cppu::OWeakObject* > (this) ) );	// static_cast: disambiguate hierarchy
    }

    uno::Reference< XAccessible > SAL_CALL  AccessibleImageBullet::getAccessibleParent() throw (uno::RuntimeException)
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        return mxParent;
    }

    sal_Int32 SAL_CALL  AccessibleImageBullet::getAccessibleIndexInParent() throw (uno::RuntimeException)
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        return mnIndexInParent;
    }

    sal_Int16 SAL_CALL  AccessibleImageBullet::getAccessibleRole() throw (uno::RuntimeException)
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        return AccessibleRole::GRAPHIC;
    }

    ::rtl::OUString SAL_CALL  AccessibleImageBullet::getAccessibleDescription() throw (uno::RuntimeException)
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        ::vos::OGuard aGuard( Application::GetSolarMutex() );

        // Get the string from the resource for the specified id.
        return ::rtl::OUString( String( EditResId (RID_SVXSTR_A11Y_IMAGEBULLET_DESCRIPTION) ) );
    }

    ::rtl::OUString SAL_CALL  AccessibleImageBullet::getAccessibleName() throw (uno::RuntimeException)
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        ::vos::OGuard aGuard( Application::GetSolarMutex() );

        // Get the string from the resource for the specified id.
        return ::rtl::OUString( String ( EditResId (RID_SVXSTR_A11Y_IMAGEBULLET_NAME) ) );
    }

    uno::Reference< XAccessibleRelationSet > SAL_CALL AccessibleImageBullet::getAccessibleRelationSet() throw (uno::RuntimeException)
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        // no relations, therefore empty
        return uno::Reference< XAccessibleRelationSet >();
    }

    uno::Reference< XAccessibleStateSet > SAL_CALL AccessibleImageBullet::getAccessibleStateSet() throw (uno::RuntimeException)
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        ::vos::OGuard aGuard( Application::GetSolarMutex() );

        // Create a copy of the state set and return it.
        ::utl::AccessibleStateSetHelper* pStateSet = static_cast< ::utl::AccessibleStateSetHelper*>(mxStateSet.get());

        if( !pStateSet )
            return uno::Reference<XAccessibleStateSet>();

        return uno::Reference<XAccessibleStateSet>( new ::utl::AccessibleStateSetHelper (*pStateSet) );
    }

    lang::Locale SAL_CALL AccessibleImageBullet::getLocale() throw (IllegalAccessibleComponentStateException, uno::RuntimeException)
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        ::vos::OGuard aGuard( Application::GetSolarMutex() );

        lang::Locale		aLocale;

        DBG_ASSERT(GetParagraphIndex() >= 0 && GetParagraphIndex() <= USHRT_MAX,
                   "AccessibleImageBullet::getLocale: paragraph index value overflow");

        // return locale of first character in the paragraph
        return SvxLanguageToLocale(aLocale, GetTextForwarder().GetLanguage( static_cast< sal_uInt16 >( GetParagraphIndex() ), 0 ));
    }

    void SAL_CALL AccessibleImageBullet::addEventListener( const uno::Reference< XAccessibleEventListener >& xListener ) throw (uno::RuntimeException)
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        if( getNotifierClientId() != -1 )
            ::comphelper::AccessibleEventNotifier::addEventListener( getNotifierClientId(), xListener );
    }

    void SAL_CALL AccessibleImageBullet::removeEventListener( const uno::Reference< XAccessibleEventListener >& xListener ) throw (uno::RuntimeException)
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        if( getNotifierClientId() != -1 )
            ::comphelper::AccessibleEventNotifier::removeEventListener( getNotifierClientId(), xListener );
    }

    sal_Bool SAL_CALL AccessibleImageBullet::containsPoint( const awt::Point& rPoint ) throw (uno::RuntimeException)
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        ::vos::OGuard aGuard( Application::GetSolarMutex() );

        DBG_ASSERT(GetParagraphIndex() >= 0 && GetParagraphIndex() <= USHRT_MAX,
                   "AccessibleEditableTextPara::contains: index value overflow");

        awt::Rectangle aTmpRect = getBounds();
        Rectangle aRect( Point(aTmpRect.X, aTmpRect.Y), Size(aTmpRect.Width, aTmpRect.Height) );
        Point aPoint( rPoint.X, rPoint.Y );

        return aRect.IsInside( aPoint );
    }

    uno::Reference< XAccessible > SAL_CALL AccessibleImageBullet::getAccessibleAtPoint( const awt::Point& /*aPoint*/ ) throw (uno::RuntimeException)
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        // as we have no children, empty reference
        return uno::Reference< XAccessible >();
    }

    awt::Rectangle SAL_CALL AccessibleImageBullet::getBounds(  ) throw (uno::RuntimeException)
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        ::vos::OGuard aGuard( Application::GetSolarMutex() );

        DBG_ASSERT(GetParagraphIndex() >= 0 && GetParagraphIndex() <= USHRT_MAX,
                   "AccessibleEditableTextPara::getBounds: index value overflow");

        SvxTextForwarder& rCacheTF = GetTextForwarder();
        EBulletInfo aBulletInfo = rCacheTF.GetBulletInfo( static_cast< sal_uInt16 > (GetParagraphIndex()) );
        Rectangle aParentRect = rCacheTF.GetParaBounds( static_cast< sal_uInt16 >( GetParagraphIndex() ) );

        if( aBulletInfo.nParagraph != EE_PARA_NOT_FOUND &&
            aBulletInfo.bVisible &&
            aBulletInfo.nType == SVX_NUM_BITMAP )
        {
            Rectangle aRect = aBulletInfo.aBounds;

            // subtract paragraph position (bullet pos is absolute in EditEngine/Outliner)
            aRect.Move( -aParentRect.Left(), -aParentRect.Top() );

            // convert to screen coordinates
            Rectangle aScreenRect = AccessibleEditableTextPara::LogicToPixel( aRect,
                                                                              rCacheTF.GetMapMode(),
                                                                              GetViewForwarder() );

            // offset from shape/cell
            Point aOffset = GetEEOffset();

            return awt::Rectangle( aScreenRect.Left() + aOffset.X(),
                                   aScreenRect.Top() + aOffset.Y(),
                                   aScreenRect.GetSize().Width(),
                                   aScreenRect.GetSize().Height() );
        }

        return awt::Rectangle();
    }

    awt::Point SAL_CALL AccessibleImageBullet::getLocation(  ) throw (uno::RuntimeException)
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        ::vos::OGuard aGuard( Application::GetSolarMutex() );

        awt::Rectangle aRect = getBounds();

        return awt::Point( aRect.X, aRect.Y );
    }

    awt::Point SAL_CALL AccessibleImageBullet::getLocationOnScreen(  ) throw (uno::RuntimeException)
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        ::vos::OGuard aGuard( Application::GetSolarMutex() );

        // relate us to parent
        uno::Reference< XAccessible > xParent = getAccessibleParent();
        if( xParent.is() )
        {
            uno::Reference< XAccessibleComponent > xParentComponent( xParent, uno::UNO_QUERY );
            if( xParentComponent.is() )
            {
                awt::Point aRefPoint = xParentComponent->getLocationOnScreen();
                awt::Point aPoint = getLocation();
                aPoint.X += aRefPoint.X;
                aPoint.Y += aRefPoint.Y;

                return aPoint;
            }
        }

        throw uno::RuntimeException(::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("Cannot access parent")),
                                    uno::Reference< uno::XInterface >
                                    ( static_cast< XAccessible* > (this) ) );	// disambiguate hierarchy
    }

    awt::Size SAL_CALL AccessibleImageBullet::getSize(  ) throw (uno::RuntimeException)
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        ::vos::OGuard aGuard( Application::GetSolarMutex() );

        awt::Rectangle aRect = getBounds();

        return awt::Size( aRect.Width, aRect.Height );
    }

    void SAL_CALL AccessibleImageBullet::grabFocus(  ) throw (uno::RuntimeException)
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        throw uno::RuntimeException(::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("Not focusable")),
                                    uno::Reference< uno::XInterface >
                                    ( static_cast< XAccessible* > (this) ) );	// disambiguate hierarchy
    }

    sal_Int32 SAL_CALL AccessibleImageBullet::getForeground(  ) throw (::com::sun::star::uno::RuntimeException)
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        // #104444# Added to XAccessibleComponent interface
		svtools::ColorConfig aColorConfig;
		sal_uInt32 nColor = aColorConfig.GetColorValue( svtools::FONTCOLOR ).nColor;
        return static_cast<sal_Int32>(nColor);
    }

    sal_Int32 SAL_CALL AccessibleImageBullet::getBackground(  ) throw (::com::sun::star::uno::RuntimeException)
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        // #104444# Added to XAccessibleComponent interface
        Color aColor( Application::GetSettings().GetStyleSettings().GetWindowColor().GetColor() );

        // the background is transparent
        aColor.SetTransparency( 0xFF);

        return static_cast<sal_Int32>( aColor.GetColor() );
    }

    ::rtl::OUString SAL_CALL AccessibleImageBullet::getImplementationName (void) throw (uno::RuntimeException)
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        return ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM ("AccessibleImageBullet"));
    }

    sal_Bool SAL_CALL AccessibleImageBullet::supportsService (const ::rtl::OUString& sServiceName) throw (uno::RuntimeException)
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        //  Iterate over all supported service names and return true if on of them
        //  matches the given name.
        uno::Sequence< ::rtl::OUString> aSupportedServices (
            getSupportedServiceNames ());
        for (int i=0; i<aSupportedServices.getLength(); i++)
            if (sServiceName == aSupportedServices[i])
                return sal_True;
        return sal_False;
    }

    uno::Sequence< ::rtl::OUString> SAL_CALL AccessibleImageBullet::getSupportedServiceNames (void) throw (uno::RuntimeException)
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        const ::rtl::OUString sServiceName (RTL_CONSTASCII_USTRINGPARAM ("com.sun.star.accessibility.AccessibleContext"));
        return uno::Sequence< ::rtl::OUString > (&sServiceName, 1);
    }

    ::rtl::OUString SAL_CALL AccessibleImageBullet::getServiceName (void) throw (uno::RuntimeException)
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        return ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("com.sun.star.accessibility.AccessibleContext"));
    }

    void AccessibleImageBullet::SetIndexInParent( sal_Int32 nIndex )
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        mnIndexInParent = nIndex;
    }

    sal_Int32 AccessibleImageBullet::GetIndexInParent() const
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        return mnIndexInParent;
    }

    void AccessibleImageBullet::SetEEOffset( const Point& rOffset )
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        maEEOffset = rOffset;
    }

    void AccessibleImageBullet::Dispose()
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        int nClientId( getNotifierClientId() );

        // #108212# drop all references before notifying dispose
        mxParent = NULL;
        mnNotifierClientId = -1;
        mpEditSource = NULL;

        // notify listeners
        if( nClientId != -1 )
        {
            try
            {
                uno::Reference < XAccessibleContext > xThis = getAccessibleContext();

                // #106234# Delegate to EventNotifier
                ::comphelper::AccessibleEventNotifier::revokeClientNotifyDisposing( nClientId, xThis );
#ifdef DBG_UTIL
                OSL_TRACE( "AccessibleImageBullet disposed ID: %d", nClientId );
#endif
            }
            catch( const uno::Exception& ) {}
        }
    }

    void AccessibleImageBullet::SetEditSource( SvxEditSource* pEditSource )
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        mpEditSource = pEditSource;

        if( !mpEditSource )
        {
            // going defunc
            UnSetState( AccessibleStateType::SHOWING );
            UnSetState( AccessibleStateType::VISIBLE );
            SetState( AccessibleStateType::INVALID );
            SetState( AccessibleStateType::DEFUNC );

            Dispose();
        }
    }

    void AccessibleImageBullet::FireEvent(const sal_Int16 nEventId, const uno::Any& rNewValue, const uno::Any& rOldValue ) const
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        uno::Reference < XAccessibleContext > xThis( const_cast< AccessibleImageBullet* > (this)->getAccessibleContext() );

        AccessibleEventObject aEvent(xThis, nEventId, rNewValue, rOldValue);

        // #106234# Delegate to EventNotifier
        ::comphelper::AccessibleEventNotifier::addEvent( getNotifierClientId(),
                                                         aEvent );
    }

    void AccessibleImageBullet::GotPropertyEvent( const uno::Any& rNewValue, const sal_Int16 nEventId ) const
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        FireEvent( nEventId, rNewValue );
    }

    void AccessibleImageBullet::LostPropertyEvent( const uno::Any& rOldValue, const sal_Int16 nEventId ) const
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        FireEvent( nEventId, uno::Any(), rOldValue );
    }

    void AccessibleImageBullet::SetState( const sal_Int16 nStateId )
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        ::utl::AccessibleStateSetHelper* pStateSet = static_cast< ::utl::AccessibleStateSetHelper*>(mxStateSet.get());
        if( pStateSet != NULL &&
            !pStateSet->contains(nStateId) )
        {
            pStateSet->AddState( nStateId );
            GotPropertyEvent( uno::makeAny( nStateId ), AccessibleEventId::STATE_CHANGED );
        }
    }

    void AccessibleImageBullet::UnSetState( const sal_Int16 nStateId )
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        ::utl::AccessibleStateSetHelper* pStateSet = static_cast< ::utl::AccessibleStateSetHelper*>(mxStateSet.get());
        if( pStateSet != NULL &&
            pStateSet->contains(nStateId) )
        {
            pStateSet->RemoveState( nStateId );
            LostPropertyEvent( uno::makeAny( nStateId ), AccessibleEventId::STATE_CHANGED );
        }
    }

    int AccessibleImageBullet::getNotifierClientId() const
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        return mnNotifierClientId;
    }

    void AccessibleImageBullet::SetParagraphIndex( sal_Int32 nIndex )
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        uno::Any aOldDesc;
        uno::Any aOldName;

        try
        {
            aOldDesc <<= getAccessibleDescription();
            aOldName <<= getAccessibleName();
        }
        catch( const uno::Exception& ) {} // optional behaviour

        sal_Int32 nOldIndex = mnParagraphIndex;

        mnParagraphIndex = nIndex;

        try
        {
            if( nOldIndex != nIndex )
            {
                // index and therefore description changed
                FireEvent( AccessibleEventId::DESCRIPTION_CHANGED, uno::makeAny( getAccessibleDescription() ), aOldDesc );
                FireEvent( AccessibleEventId::NAME_CHANGED, uno::makeAny( getAccessibleName() ), aOldName );
            }
        }
        catch( const uno::Exception& ) {} // optional behaviour
    }

    sal_Int32 AccessibleImageBullet::GetParagraphIndex() const SAL_THROW((uno::RuntimeException))
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        return mnParagraphIndex;
    }

    SvxEditSource& AccessibleImageBullet::GetEditSource() const SAL_THROW((uno::RuntimeException))
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        if( mpEditSource )
            return *mpEditSource;
        else
            throw uno::RuntimeException(::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("No edit source, object is defunct")),
                                        uno::Reference< uno::XInterface >
                                        ( static_cast< ::cppu::OWeakObject* >
                                          ( const_cast< AccessibleImageBullet* > (this) ) ) );	// disambiguate hierarchy
    }

    SvxTextForwarder& AccessibleImageBullet::GetTextForwarder() const SAL_THROW((uno::RuntimeException))
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        SvxEditSource& rEditSource = GetEditSource();
        SvxTextForwarder* pTextForwarder = rEditSource.GetTextForwarder();

        if( !pTextForwarder )
            throw uno::RuntimeException(::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("Unable to fetch text forwarder, object is defunct")),
                                        uno::Reference< uno::XInterface >
                                        ( static_cast< ::cppu::OWeakObject* >
                                          ( const_cast< AccessibleImageBullet* > (this) ) ) );	// disambiguate hierarchy

        if( pTextForwarder->IsValid() )
            return *pTextForwarder;
        else
            throw uno::RuntimeException(::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("Text forwarder is invalid, object is defunct")),
                                        uno::Reference< uno::XInterface >
                                        ( static_cast< ::cppu::OWeakObject* >
                                          ( const_cast< AccessibleImageBullet* > (this) ) ) );	// disambiguate hierarchy
    }

    SvxViewForwarder& AccessibleImageBullet::GetViewForwarder() const SAL_THROW((uno::RuntimeException))
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        SvxEditSource& rEditSource = GetEditSource();
        SvxViewForwarder* pViewForwarder = rEditSource.GetViewForwarder();

        if( !pViewForwarder )
        {
            throw uno::RuntimeException(::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("Unable to fetch view forwarder, object is defunct")),
                                        uno::Reference< uno::XInterface >
                                        ( static_cast< ::cppu::OWeakObject* >
                                          ( const_cast< AccessibleImageBullet* > (this) ) ) );	// disambiguate hierarchy
        }

        if( pViewForwarder->IsValid() )
            return *pViewForwarder;
        else
            throw uno::RuntimeException(::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("View forwarder is invalid, object is defunct")),
                                        uno::Reference< uno::XInterface >
                                        ( static_cast< ::cppu::OWeakObject* >
                                          ( const_cast< AccessibleImageBullet* > (this) )  ) );	// disambiguate hierarchy
    }

    const Point& AccessibleImageBullet::GetEEOffset() const
    {
        DBG_CHKTHIS( AccessibleImageBullet, NULL );

        return maEEOffset;
    }

} // end of namespace accessibility