xref: /aoo41x/main/svx/source/accessibility/GraphCtlAccessibleContext.cxx (revision cdf0e10c)

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 *
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 * Copyright 2000, 2010 Oracle and/or its affiliates.
 *
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * <http://www.openoffice.org/license.html>
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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_svx.hxx"
#include <com/sun/star/accessibility/AccessibleRole.hpp>
#include <com/sun/star/accessibility/AccessibleEventId.hpp>
#include <com/sun/star/accessibility/AccessibleStateType.hpp>
#include <com/sun/star/lang/DisposedException.hpp>
#include <com/sun/star/beans/PropertyChangeEvent.hpp>
#include <com/sun/star/awt/XWindow.hpp>
#include <unotools/accessiblestatesethelper.hxx>
#include <cppuhelper/typeprovider.hxx>
#include <toolkit/helper/vclunohelper.hxx>
#include <vcl/svapp.hxx>
#include <osl/mutex.hxx>
#include <rtl/uuid.h>
#include <tools/debug.hxx>
#include <tools/gen.hxx>
#include <svl/smplhint.hxx>
#include <toolkit/helper/convert.hxx>
#include <svtools/colorcfg.hxx>
#include <comphelper/accessibleeventnotifier.hxx>
#include <svx/sdrpaintwindow.hxx>

//===== local includes ========================================================
#include <svx/ShapeTypeHandler.hxx>
#include <svx/AccessibleShapeInfo.hxx>
#include "GraphCtlAccessibleContext.hxx"
#include <svx/graphctl.hxx>
#ifndef _SVX_DIALOGS_HRC
#include <svx/dialogs.hrc>
#endif
#ifndef _SVX_ACCESSIBILITY_HRC
#include "accessibility.hrc"
#endif
#include <svx/svdpage.hxx>
#include <svx/unomod.hxx>
#include <svx/dialmgr.hxx>
#include <svx/svdetc.hxx>
#include <svx/sdrhittesthelper.hxx>

//=====  namespaces ===========================================================

using namespace ::vos;
using namespace ::cppu;
using namespace ::osl;
using ::rtl::OUString;
using namespace ::accessibility;
using namespace	::com::sun::star;
using namespace	::com::sun::star::uno;
using namespace	::com::sun::star::drawing;
using namespace	::com::sun::star::lang;
using namespace	::com::sun::star::accessibility;

//=====  internal  ============================================================

/** initialize this component and set default values */
SvxGraphCtrlAccessibleContext::SvxGraphCtrlAccessibleContext(
	const Reference< XAccessible >&	rxParent,
	GraphCtrl&								rRepr,
	const OUString*							pName,
	const OUString*							pDesc ) :

	SvxGraphCtrlAccessibleContext_Base( m_aMutex ),
	mxParent( rxParent ),
	mpControl( &rRepr ),
    mpModel (NULL),
    mpPage (NULL),
    mpView (NULL),
    mnClientId( 0 ),
    mbDisposed( sal_False )
{
    if (mpControl != NULL)
    {
        mpModel = mpControl->GetSdrModel();
        if (mpModel != NULL)
            mpPage = (SdrPage*)mpModel->GetPage( 0 );
        mpView = mpControl->GetSdrView();

        if( mpModel == NULL || mpPage == NULL || mpView == NULL )
        {
            mbDisposed = true;
            // Set all the pointers to NULL just in case they are used as
            // a disposed flag.
            mpModel = NULL;
            mpPage = NULL;
            mpView = NULL;
        }
    }

	if( pName )
	{
		msName = *pName;
	}
	else
	{
		::vos::OGuard	aSolarGuard( Application::GetSolarMutex() );
		msName = SVX_RESSTR( RID_SVXSTR_GRAPHCTRL_ACC_NAME );
	}

	if( pDesc )
	{
		msDescription = *pDesc;
	}
	else
	{
		::vos::OGuard	aSolarGuard( Application::GetSolarMutex() );
		msDescription = SVX_RESSTR( RID_SVXSTR_GRAPHCTRL_ACC_DESCRIPTION );
	}

	maTreeInfo.SetSdrView( mpView );
	maTreeInfo.SetWindow( mpControl );
	maTreeInfo.SetViewForwarder( const_cast<SvxGraphCtrlAccessibleContext*>(this) );
}

//-----------------------------------------------------------------------------

/** on destruction, this component is disposed and all dispose listeners
	are called, except if this component was already disposed */
SvxGraphCtrlAccessibleContext::~SvxGraphCtrlAccessibleContext()
{
	disposing();
}

//-----------------------------------------------------------------------------

/** returns the XAccessible interface for a given SdrObject.
	Multiple calls for the same SdrObject return the same XAccessible.
*/
Reference< XAccessible > SAL_CALL SvxGraphCtrlAccessibleContext::getAccessible( const SdrObject* pObj )
{
	Reference<XAccessible> xAccessibleShape;

	if( pObj )
	{
		// see if we already created an XAccessible for the given SdrObject
		ShapesMapType::iterator iter = mxShapes.find( pObj );

		if( iter != mxShapes.end() )
		{
			// if we already have one, return it
			xAccessibleShape = (*iter).second;
		}
		else
		{
			// create a new one and remember in our internal map
			Reference< XShape > xShape( Reference< XShape >::query( (const_cast<SdrObject*>(pObj))->getUnoShape() ) );

            AccessibleShapeInfo aShapeInfo (xShape,mxParent);
			// Create accessible object that corresponds to the descriptor's shape.
			AccessibleShape* pAcc = ShapeTypeHandler::Instance().CreateAccessibleObject(
                aShapeInfo, maTreeInfo);
			xAccessibleShape = pAcc;
            if (pAcc != NULL)
            {
                pAcc->acquire();
                // Now that we acquired the new accessible shape we can
                // safely call its Init() method.
                pAcc->Init ();
            }
			mxShapes[pObj] = pAcc;

			// Create event and inform listeners of the object creation.
			CommitChange( AccessibleEventId::CHILD, makeAny( xAccessibleShape ), makeAny( Reference<XAccessible>() ) );
		}
	}

    return xAccessibleShape;
}

//=====  XAccessible  =========================================================

Reference< XAccessibleContext > SAL_CALL SvxGraphCtrlAccessibleContext::getAccessibleContext( void ) throw( RuntimeException )
{
	return this;
}

//=====  XAccessibleComponent  ================================================

sal_Bool SAL_CALL SvxGraphCtrlAccessibleContext::containsPoint( const awt::Point& rPoint ) throw( RuntimeException )
{
	// no guard -> done in getSize()
    awt::Size aSize (getSize());
    return (rPoint.X >= 0)
        && (rPoint.X < aSize.Width)
        && (rPoint.Y >= 0)
        && (rPoint.Y < aSize.Height);
}

//-----------------------------------------------------------------------------

Reference< XAccessible > SAL_CALL SvxGraphCtrlAccessibleContext::getAccessibleAtPoint( const awt::Point& rPoint ) throw( RuntimeException )
{
	::osl::MutexGuard	aGuard( m_aMutex );

	Reference< XAccessible > xAccessible;

	if( mpControl )
	{
		Point aPnt( rPoint.X, rPoint.Y );
		mpControl->PixelToLogic( aPnt );

        SdrObject* pObj = 0;

        if(mpView && mpView->GetSdrPageView())
        {
            pObj = SdrObjListPrimitiveHit(*mpPage, aPnt, 1, *mpView->GetSdrPageView(), 0, false);
        }

		if( pObj )
			xAccessible = getAccessible( pObj );
	}
	else
	{
		throw DisposedException();
	}

	return xAccessible;
}

//-----------------------------------------------------------------------------

awt::Rectangle SAL_CALL SvxGraphCtrlAccessibleContext::getBounds() throw( RuntimeException )
{
	// no guard -> done in GetBoundingBox()
	Rectangle			aCoreBounds( GetBoundingBox() );
	awt::Rectangle		aBounds;
	aBounds.X = aCoreBounds.getX();
	aBounds.Y = aCoreBounds.getY();
	aBounds.Width = aCoreBounds.getWidth();
	aBounds.Height = aCoreBounds.getHeight();
	return aBounds;
}

//-----------------------------------------------------------------------------

awt::Point SAL_CALL SvxGraphCtrlAccessibleContext::getLocation() throw( RuntimeException )
{
	// no guard -> done in GetBoundingBox()
	Rectangle	aRect( GetBoundingBox() );
	return awt::Point( aRect.getX(), aRect.getY() );
}

//-----------------------------------------------------------------------------

awt::Point SAL_CALL SvxGraphCtrlAccessibleContext::getLocationOnScreen() throw( RuntimeException )
{
	// no guard -> done in GetBoundingBoxOnScreen()
	Rectangle	aRect( GetBoundingBoxOnScreen() );
	return awt::Point( aRect.getX(), aRect.getY() );
}

//-----------------------------------------------------------------------------

awt::Size SAL_CALL SvxGraphCtrlAccessibleContext::getSize() throw( RuntimeException )
{
	// no guard -> done in GetBoundingBox()
	Rectangle	aRect( GetBoundingBox() );
	return awt::Size( aRect.getWidth(), aRect.getHeight() );
}


//=====  XAccessibleContext  ==================================================

sal_Int32 SAL_CALL SvxGraphCtrlAccessibleContext::getAccessibleChildCount( void ) throw( RuntimeException )
{
	OGuard aGuard( Application::GetSolarMutex() );

	if( NULL == mpPage )
		throw DisposedException();

	return mpPage->GetObjCount();
}

//-----------------------------------------------------------------------------

/** returns the SdrObject at index nIndex from the model of this graph */
SdrObject* SvxGraphCtrlAccessibleContext::getSdrObject( sal_Int32 nIndex )
	throw( RuntimeException, lang::IndexOutOfBoundsException )
{
	OGuard aGuard( Application::GetSolarMutex() );

	if( NULL == mpPage )
		throw DisposedException();

	if( (nIndex < 0) || ( static_cast<sal_uInt32>(nIndex) >= mpPage->GetObjCount() ) )
		throw lang::IndexOutOfBoundsException();

	return mpPage->GetObj( nIndex );
}

//-----------------------------------------------------------------------------

/** sends an AccessibleEventObject to all added XAccessibleEventListeners */
void SvxGraphCtrlAccessibleContext::CommitChange (
    sal_Int16 nEventId,
    const uno::Any& rNewValue,
    const uno::Any& rOldValue)
{
    AccessibleEventObject aEvent (
        static_cast<uno::XWeak*>(this),
        nEventId,
        rNewValue,
        rOldValue);

    FireEvent (aEvent);
}

/** sends an AccessibleEventObject to all added XAccessibleEventListeners */
void SvxGraphCtrlAccessibleContext::FireEvent (const AccessibleEventObject& aEvent)
{
	if (mnClientId)
		comphelper::AccessibleEventNotifier::addEvent( mnClientId, aEvent );
}

//-----------------------------------------------------------------------------

Reference< XAccessible > SAL_CALL SvxGraphCtrlAccessibleContext::getAccessibleChild( sal_Int32 nIndex )
	throw( RuntimeException, lang::IndexOutOfBoundsException )
{
	OGuard aGuard( Application::GetSolarMutex() );

	return getAccessible( getSdrObject( nIndex ) );
}

//-----------------------------------------------------------------------------

Reference< XAccessible > SAL_CALL SvxGraphCtrlAccessibleContext::getAccessibleParent( void ) throw( RuntimeException )
{
	return mxParent;
}

//-----------------------------------------------------------------------------

sal_Int32 SAL_CALL SvxGraphCtrlAccessibleContext::getAccessibleIndexInParent( void ) throw( RuntimeException )
{
	OGuard aGuard( Application::GetSolarMutex() );
	//	Use a simple but slow solution for now.  Optimize later.

    //	Iterate over all the parent's children and search for this object.
    if( mxParent.is() )
    {
    	Reference< XAccessibleContext >	xParentContext( mxParent->getAccessibleContext() );
        if( xParentContext.is() )
        {
        	sal_Int32 nChildCount = xParentContext->getAccessibleChildCount();
            for( sal_Int32 i = 0 ; i < nChildCount ; ++i )
            {
            	Reference< XAccessible > xChild( xParentContext->getAccessibleChild( i ) );
                if( xChild.is() )
                {
                	Reference< XAccessibleContext >	xChildContext = xChild->getAccessibleContext();
	            	if( xChildContext == ( XAccessibleContext* ) this )
                    	return i;
                }
            }
        }
   }

   //	Return -1 to indicate that this object's parent does not know about the
   //	object.
   return -1;
}

//-----------------------------------------------------------------------------

sal_Int16 SAL_CALL SvxGraphCtrlAccessibleContext::getAccessibleRole( void ) throw( RuntimeException )
{
	return AccessibleRole::PANEL;
}

//-----------------------------------------------------------------------------

OUString SAL_CALL SvxGraphCtrlAccessibleContext::getAccessibleDescription( void ) throw( RuntimeException )
{
	OGuard aGuard( Application::GetSolarMutex() );
	return msDescription;
}

//-----------------------------------------------------------------------------

OUString SAL_CALL SvxGraphCtrlAccessibleContext::getAccessibleName( void ) throw( RuntimeException )
{
	OGuard aGuard( Application::GetSolarMutex() );
	return msName;
}

//-----------------------------------------------------------------------------

/**	Return empty reference to indicate that the relation set is not
	supported.
*/
Reference< XAccessibleRelationSet > SAL_CALL SvxGraphCtrlAccessibleContext::getAccessibleRelationSet( void ) throw( RuntimeException )
{
	return Reference< XAccessibleRelationSet >();
}

//-----------------------------------------------------------------------------

Reference< XAccessibleStateSet > SAL_CALL SvxGraphCtrlAccessibleContext::getAccessibleStateSet( void ) throw( RuntimeException )
{
	OGuard aGuard( Application::GetSolarMutex() );

	utl::AccessibleStateSetHelper* pStateSetHelper = new utl::AccessibleStateSetHelper;

	if ( rBHelper.bDisposed || mbDisposed )
	{
		pStateSetHelper->AddState( AccessibleStateType::DEFUNC );
	}
	else
	{
		// pStateSetHelper->AddState( AccessibleStateType::ENABLED );
        // pStateSetHelper->AddState( AccessibleStateType::SENSITIVE );
		pStateSetHelper->AddState( AccessibleStateType::FOCUSABLE );
		if( mpControl->HasFocus() )
			pStateSetHelper->AddState( AccessibleStateType::FOCUSED );
		pStateSetHelper->AddState( AccessibleStateType::OPAQUE );
		pStateSetHelper->AddState( AccessibleStateType::SHOWING );
		pStateSetHelper->AddState( AccessibleStateType::VISIBLE );
	}

	return pStateSetHelper;
}

//-----------------------------------------------------------------------------

lang::Locale SAL_CALL SvxGraphCtrlAccessibleContext::getLocale( void ) throw( IllegalAccessibleComponentStateException, RuntimeException )
{
	OGuard aGuard( Application::GetSolarMutex() );

	if( mxParent.is() )
    {
    	Reference< XAccessibleContext >	xParentContext( mxParent->getAccessibleContext() );
        if( xParentContext.is() )
	    	return xParentContext->getLocale();
    }

    //	No parent.  Therefore throw exception to indicate this cluelessness.
    throw IllegalAccessibleComponentStateException();
}

//=====  XAccessibleEventListener  ============================================

void SAL_CALL SvxGraphCtrlAccessibleContext::addEventListener( const Reference< XAccessibleEventListener >& xListener )
    throw( RuntimeException )
{
	if (xListener.is())
    {
        OGuard aGuard( Application::GetSolarMutex() );
		if (!mnClientId)
            mnClientId = comphelper::AccessibleEventNotifier::registerClient( );
		comphelper::AccessibleEventNotifier::addEventListener( mnClientId, xListener );
    }
}

//-----------------------------------------------------------------------------

void SAL_CALL SvxGraphCtrlAccessibleContext::removeEventListener( const Reference< XAccessibleEventListener >& xListener )
    throw( RuntimeException )
{
	if (xListener.is())
	{
    	OGuard aGuard( Application::GetSolarMutex() );

        sal_Int32 nListenerCount = comphelper::AccessibleEventNotifier::removeEventListener( mnClientId, xListener );
		if ( !nListenerCount )
		{
			// no listeners anymore
			// -> revoke ourself. This may lead to the notifier thread dying (if we were the last client),
			// and at least to us not firing any events anymore, in case somebody calls
			// NotifyAccessibleEvent, again
			comphelper::AccessibleEventNotifier::revokeClient( mnClientId );
			mnClientId = 0;
		}
	}
}

//-----------------------------------------------------------------------------

void SAL_CALL SvxGraphCtrlAccessibleContext::addFocusListener( const Reference< awt::XFocusListener >& xListener )
	throw( RuntimeException )
{
	OGuard aGuard( Application::GetSolarMutex() );

	if( xListener.is() )
    {
		Reference< ::com::sun::star::awt::XWindow >	xWindow( VCLUnoHelper::GetInterface( mpControl ) );
		if( xWindow.is() )
			xWindow->addFocusListener( xListener );
    }
}

//-----------------------------------------------------------------------------

void SAL_CALL SvxGraphCtrlAccessibleContext::removeFocusListener( const Reference< awt::XFocusListener >& xListener )
	throw (RuntimeException)
{
	OGuard aGuard( Application::GetSolarMutex() );

	if( xListener.is() )
    {
		Reference< ::com::sun::star::awt::XWindow >	xWindow = VCLUnoHelper::GetInterface( mpControl );
		if( xWindow.is() )
			xWindow->removeFocusListener( xListener );
    }
}

//-----------------------------------------------------------------------------

void SAL_CALL SvxGraphCtrlAccessibleContext::grabFocus() throw( RuntimeException )
{
	OGuard aGuard( Application::GetSolarMutex() );

	if( NULL == mpControl )
		throw DisposedException();

	mpControl->GrabFocus();
}

//-----------------------------------------------------------------------------

Any SAL_CALL SvxGraphCtrlAccessibleContext::getAccessibleKeyBinding() throw( RuntimeException )
{
	// here is no implementation, because here are no KeyBindings for every object
	return Any();
}





sal_Int32 SAL_CALL SvxGraphCtrlAccessibleContext::getForeground (void)
    throw (::com::sun::star::uno::RuntimeException)
{
	svtools::ColorConfig aColorConfig;
    sal_uInt32 nColor = aColorConfig.GetColorValue( svtools::FONTCOLOR ).nColor;
    return static_cast<sal_Int32>(nColor);
}




sal_Int32 SAL_CALL SvxGraphCtrlAccessibleContext::getBackground (void)
    throw (::com::sun::star::uno::RuntimeException)
{
    sal_uInt32 nColor = Application::GetSettings().GetStyleSettings().GetWindowColor().GetColor();
    return static_cast<sal_Int32>(nColor);
}


//=====  XServiceInfo  ========================================================

OUString SAL_CALL SvxGraphCtrlAccessibleContext::getImplementationName( void ) throw( RuntimeException )
{
	return OUString( RTL_CONSTASCII_USTRINGPARAM( "com.sun.star.comp.ui.SvxGraphCtrlAccessibleContext" ) );
}

//-----------------------------------------------------------------------------

sal_Bool SAL_CALL SvxGraphCtrlAccessibleContext::supportsService( const OUString& sServiceName ) throw( RuntimeException )
{
	OGuard aGuard( Application::GetSolarMutex() );
    //  Iterate over all supported service names and return true if on of them
    //  matches the given name.
    Sequence< OUString >	aSupportedServices( getSupportedServiceNames() );
	int						nLenght = aSupportedServices.getLength();

    for( int i = 0 ; i < nLenght ; ++i )
	{
        if( sServiceName == aSupportedServices[ i ] )
            return sal_True;
	}

    return sal_False;
}

//-----------------------------------------------------------------------------

Sequence< OUString > SAL_CALL SvxGraphCtrlAccessibleContext::getSupportedServiceNames( void ) throw( RuntimeException )
{
	Sequence< OUString > aSNs( 3 );

	aSNs[0] = OUString( RTL_CONSTASCII_USTRINGPARAM( "com.sun.star.accessibility.Accessible" ) );
	aSNs[1] = OUString( RTL_CONSTASCII_USTRINGPARAM( "com.sun.star.accessibility.AccessibleContext" ) );
	aSNs[2] = OUString( RTL_CONSTASCII_USTRINGPARAM( "com.sun.star.drawing.AccessibleGraphControl" ) );

	return aSNs;
}

//=====  XTypeProvider  =======================================================

Sequence<sal_Int8> SAL_CALL SvxGraphCtrlAccessibleContext::getImplementationId( void ) throw( RuntimeException )
{
	OGuard aGuard( Application::GetSolarMutex() );
	return getUniqueId();
}

//=====  XServiceName  ========================================================

OUString SvxGraphCtrlAccessibleContext::getServiceName( void ) throw( RuntimeException )
{
	return OUString( RTL_CONSTASCII_USTRINGPARAM( "com.sun.star.accessibility.AccessibleContext" ) );
}

//=====  XAccessibleSelection =============================================

void SAL_CALL SvxGraphCtrlAccessibleContext::selectAccessibleChild( sal_Int32 nIndex ) throw( lang::IndexOutOfBoundsException, RuntimeException )
{
	OGuard aGuard( Application::GetSolarMutex() );

	if( NULL == mpView )
		throw DisposedException();

	SdrObject* pObj = getSdrObject( nIndex );

	if( pObj )
		mpView->MarkObj( pObj, mpView->GetSdrPageView());
}

//-----------------------------------------------------------------------------

sal_Bool SAL_CALL SvxGraphCtrlAccessibleContext::isAccessibleChildSelected( sal_Int32 nIndex ) throw( lang::IndexOutOfBoundsException, RuntimeException )
{
	OGuard aGuard( Application::GetSolarMutex() );

	if( NULL == mpView )
		throw DisposedException();

	return mpView->IsObjMarked( getSdrObject( nIndex ) );
}

//-----------------------------------------------------------------------------

void SAL_CALL SvxGraphCtrlAccessibleContext::clearAccessibleSelection() throw( RuntimeException )
{
	OGuard aGuard( Application::GetSolarMutex() );

	if( NULL == mpView )
		throw DisposedException();

	mpView->UnmarkAllObj();
}

//-----------------------------------------------------------------------------

void SAL_CALL SvxGraphCtrlAccessibleContext::selectAllAccessibleChildren() throw( RuntimeException )
{
	OGuard aGuard( Application::GetSolarMutex() );

	if( NULL == mpView )
		throw DisposedException();

	mpView->MarkAllObj();
}

//-----------------------------------------------------------------------------

sal_Int32 SAL_CALL SvxGraphCtrlAccessibleContext::getSelectedAccessibleChildCount() throw( RuntimeException )
{
	OGuard aGuard( Application::GetSolarMutex() );

	if( NULL == mpView )
		throw DisposedException();

	const SdrMarkList& rList = mpView->GetMarkedObjectList();
	return rList.GetMarkCount();
}

//-----------------------------------------------------------------------------

Reference< XAccessible > SAL_CALL SvxGraphCtrlAccessibleContext::getSelectedAccessibleChild( sal_Int32 nIndex )
	throw( lang::IndexOutOfBoundsException, RuntimeException )
{
	OGuard aGuard( Application::GetSolarMutex() );

	checkChildIndexOnSelection( nIndex );

	Reference< XAccessible > xAccessible;

	const SdrMarkList& rList = mpView->GetMarkedObjectList();
	SdrObject* pObj = rList.GetMark(nIndex)->GetMarkedSdrObj();
	if( pObj )
		xAccessible = getAccessible( pObj );

	return xAccessible;
}

//-----------------------------------------------------------------------------

void SAL_CALL SvxGraphCtrlAccessibleContext::deselectAccessibleChild( sal_Int32 nIndex ) throw( lang::IndexOutOfBoundsException, RuntimeException )
{
	OGuard aGuard( Application::GetSolarMutex() );

	checkChildIndexOnSelection( nIndex );

	if( mpView )
	{
		const SdrMarkList& rList = mpView->GetMarkedObjectList();

        SdrObject* pObj = getSdrObject( nIndex );
		if( pObj )
		{
			SdrMarkList aRefList( rList );

			SdrPageView* pPV = mpView->GetSdrPageView();
			mpView->UnmarkAllObj( pPV );

			sal_uInt32 nCount = aRefList.GetMarkCount();
			sal_uInt32 nMark;
			for( nMark = 0; nMark < nCount; nMark++ )
			{
				if( aRefList.GetMark(nMark)->GetMarkedSdrObj() != pObj )
					mpView->MarkObj( aRefList.GetMark(nMark)->GetMarkedSdrObj(), pPV );
			}
		}
	}
}

//=====  internals ========================================================

void SvxGraphCtrlAccessibleContext::checkChildIndex( long nIndex ) throw( lang::IndexOutOfBoundsException )
{
	if( nIndex < 0 || nIndex >= getAccessibleChildCount() )
		throw lang::IndexOutOfBoundsException();
}

//-----------------------------------------------------------------------------

void SvxGraphCtrlAccessibleContext::checkChildIndexOnSelection( long nIndex ) throw( lang::IndexOutOfBoundsException )
{
	if( nIndex < 0 || nIndex >= getSelectedAccessibleChildCount() )
		throw lang::IndexOutOfBoundsException();
}

//-----------------------------------------------------------------------------

void SvxGraphCtrlAccessibleContext::setName( const OUString& rName )
{
	OGuard aGuard( Application::GetSolarMutex() );

	msName = rName;
}

//-----------------------------------------------------------------------------

void SvxGraphCtrlAccessibleContext::setDescription( const OUString& rDescr )
{
	OGuard aGuard( Application::GetSolarMutex() );

	msDescription = rDescr;
}




/** Replace the model, page, and view pointers by the ones provided
    (explicitly and implicitly).
*/
void SvxGraphCtrlAccessibleContext::setModelAndView (
    SdrModel* pModel,
    SdrView* pView)
{
	OGuard aGuard (Application::GetSolarMutex());

    mpModel = pModel;
    if (mpModel != NULL)
        mpPage = (SdrPage*)mpModel->GetPage( 0 );
    mpView = pView;

    if (mpModel == NULL || mpPage == NULL || mpView == NULL)
    {
        mbDisposed = true;

        // Set all the pointers to NULL just in case they are used as
        // a disposed flag.
        mpModel = NULL;
        mpPage = NULL;
        mpView = NULL;
    }

	maTreeInfo.SetSdrView (mpView);
}



//-----------------------------------------------------------------------------

void SAL_CALL SvxGraphCtrlAccessibleContext::disposing()
{
	OGuard aGuard( Application::GetSolarMutex() );

	if( mbDisposed )
		return;

	mbDisposed = sal_True;

	mpControl = NULL;		// object dies with representation
	mpView = NULL;
	mpPage = NULL;

	{
		ShapesMapType::iterator I;

		for (I=mxShapes.begin(); I!=mxShapes.end(); I++)
		{
			XAccessible* pAcc = (*I).second;
			Reference< XComponent > xComp( pAcc, UNO_QUERY );
			if( xComp.is() )
				xComp->dispose();

			(*I).second->release();
		}

		mxShapes.clear();
	}

    // Send a disposing to all listeners.
	if ( mnClientId )
	{
        comphelper::AccessibleEventNotifier::revokeClientNotifyDisposing( mnClientId, *this );
		mnClientId =  0;
	}
}

//-----------------------------------------------------------------------------

Rectangle SvxGraphCtrlAccessibleContext::GetBoundingBoxOnScreen( void ) throw( RuntimeException )
{
	OGuard aGuard( Application::GetSolarMutex() );

	if( NULL == mpControl )
		throw DisposedException();

	return Rectangle(
        mpControl->GetAccessibleParentWindow()->OutputToAbsoluteScreenPixel(
            mpControl->GetPosPixel() ),
        mpControl->GetSizePixel() );
}

//-----------------------------------------------------------------------------

/** Calculate the relative coordinates of the bounding box as difference
    between the absolute coordinates of the bounding boxes of this control
    and its parent in the accessibility tree.
*/
Rectangle SvxGraphCtrlAccessibleContext::GetBoundingBox( void ) throw( RuntimeException )
{
	OGuard aGuard( Application::GetSolarMutex() );

	Rectangle aBounds ( 0, 0, 0, 0 );

	Window* pWindow = mpControl;
	if (pWindow != NULL)
	{
		aBounds = pWindow->GetWindowExtentsRelative (NULL);
		Window* pParent = pWindow->GetAccessibleParentWindow();
		if (pParent != NULL)
		{
			Rectangle aParentRect = pParent->GetWindowExtentsRelative (NULL);
			aBounds -= aParentRect.TopLeft();
		}
	}
    else
		throw DisposedException();

	return aBounds;
}

//-----------------------------------------------------------------------------

Sequence< sal_Int8 > SvxGraphCtrlAccessibleContext::getUniqueId( void )
{
	// no guard because it's private -> has to guarded when using it!
	static OImplementationId*	pId = 0;
	if( !pId )
	{
		OGuard aGuard( Application::GetSolarMutex() );
		if( !pId)
		{
			static OImplementationId	aId;
			pId = &aId;
		}
	}
	return pId->getImplementationId();
}

//-----------------------------------------------------------------------------

void SvxGraphCtrlAccessibleContext::Notify( SfxBroadcaster& /*rBC*/, const SfxHint& rHint )
{
	const SdrHint* pSdrHint = PTR_CAST( SdrHint, &rHint );

	if( pSdrHint )
	{
		switch( pSdrHint->GetKind() )
		{
			case HINT_OBJCHG:
				{
					ShapesMapType::iterator iter = mxShapes.find( pSdrHint->GetObject() );

					if( iter != mxShapes.end() )
					{
						// if we already have one, return it
						AccessibleShape* pShape = (*iter).second;

						if( NULL != pShape )
							pShape->CommitChange( AccessibleEventId::VISIBLE_DATA_CHANGED, uno::Any(), uno::Any() );
					}
				}
				break;

			case HINT_OBJINSERTED:
				CommitChange( AccessibleEventId::CHILD, makeAny( getAccessible( pSdrHint->GetObject() ) ) , uno::Any());
				break;
			case HINT_OBJREMOVED:
				CommitChange( AccessibleEventId::CHILD, uno::Any(), makeAny( getAccessible( pSdrHint->GetObject() ) )  );
				break;
			case HINT_MODELCLEARED:
				dispose();
				break;
            default:
                break;
		}
	}
	else
	{
		const SfxSimpleHint* pSfxHint = PTR_CAST(SfxSimpleHint, &rHint );

		// ist unser SdDrawDocument gerade gestorben?
		if(pSfxHint && pSfxHint->GetId() == SFX_HINT_DYING)
		{
			dispose();
		}
	}
}

//=====  IAccessibleViewforwarder  ========================================

sal_Bool SvxGraphCtrlAccessibleContext::IsValid (void) const
{
    return sal_True;
}

//-----------------------------------------------------------------------------

Rectangle SvxGraphCtrlAccessibleContext::GetVisibleArea (void) const
{
	Rectangle aVisArea;

	if( mpView && mpView->PaintWindowCount())
	{
		SdrPaintWindow* pPaintWindow = mpView->GetPaintWindow(0L);
		aVisArea = pPaintWindow->GetVisibleArea();
	}

	return aVisArea;
}

//-----------------------------------------------------------------------------

Point SvxGraphCtrlAccessibleContext::LogicToPixel (const Point& rPoint) const
{
	if( mpControl )
	{
		Rectangle aBBox(mpControl->GetWindowExtentsRelative(NULL));
	    return mpControl->LogicToPixel (rPoint) + aBBox.TopLeft();
	}
	else
	{
		return rPoint;
	}
}

//-----------------------------------------------------------------------------

Size SvxGraphCtrlAccessibleContext::LogicToPixel (const Size& rSize) const
{
	if( mpControl )
		return mpControl->LogicToPixel (rSize);
	else
		return rSize;
}

//-----------------------------------------------------------------------------

Point SvxGraphCtrlAccessibleContext::PixelToLogic (const Point& rPoint) const
{
	if( mpControl )
		return mpControl->PixelToLogic (rPoint);
	else
		return rPoint;
}

//-----------------------------------------------------------------------------

Size SvxGraphCtrlAccessibleContext::PixelToLogic (const Size& rSize) const
{
	if( mpControl )
		return mpControl->PixelToLogic (rSize);
	else
		return rSize;
}