xref: /aoo42x/main/svx/source/sdr/contact/viewobjectcontactofunocontrol.cxx (revision cdf0e10c)

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 *
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 * Copyright 2000, 2010 Oracle and/or its affiliates.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
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 *
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 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_svx.hxx"

#include <svx/sdr/contact/viewobjectcontactofunocontrol.hxx>
#include <svx/sdr/contact/viewcontactofunocontrol.hxx>
#include <svx/sdr/contact/displayinfo.hxx>
#include <svx/sdr/properties/properties.hxx>
#include <svx/sdr/contact/objectcontactofpageview.hxx>
#include <svx/sdr/primitive2d/svx_primitivetypes2d.hxx>
#include <svx/svdouno.hxx>
#include <svx/svdpagv.hxx>
#include <svx/svdview.hxx>
#include <svx/sdrpagewindow.hxx>
#include "svx/sdrpaintwindow.hxx"

/** === begin UNO includes === **/
#include <com/sun/star/lang/XMultiServiceFactory.hpp>
#include <com/sun/star/awt/XControl.hpp>
#include <com/sun/star/awt/XControlModel.hpp>
#include <com/sun/star/awt/XControlContainer.hpp>
#include <com/sun/star/awt/XWindow2.hpp>
#include <com/sun/star/awt/PosSize.hpp>
#include <com/sun/star/awt/XView.hpp>
#include <com/sun/star/beans/XPropertySet.hpp>
#include <com/sun/star/lang/XComponent.hpp>
#include <com/sun/star/awt/InvalidateStyle.hpp>
#include <com/sun/star/util/XModeChangeListener.hpp>
#include <com/sun/star/util/XModeChangeBroadcaster.hpp>
#include <com/sun/star/container/XContainerListener.hpp>
#include <com/sun/star/container/XContainer.hpp>
/** === end UNO includes === **/

#include <vcl/svapp.hxx>
#include <vos/mutex.hxx>
#include <comphelper/processfactory.hxx>
#include <comphelper/scopeguard.hxx>
#include <cppuhelper/implbase4.hxx>
#include <toolkit/helper/vclunohelper.hxx>
#include <tools/diagnose_ex.h>
#include <basegfx/matrix/b2dhommatrix.hxx>
#include <drawinglayer/primitive2d/controlprimitive2d.hxx>

#include <boost/bind.hpp>

/*

Form controls (more precise: UNO Controls) in the drawing layer are ... prone to breakage, since they have some
specialities which the drawing layer currently doesn't capture too well. In particular, having a living VCL
window as child of the document window, and coupling this Window to a drawing layer object, makes things
difficult sometimes.

Below is a list of issues which existed in the past. Whenever you change code here, you're encouraged to
verify those issues are still fixed. (Whenever you have some additional time, you're encouraged to write
an automatic test for one or more of those issues for which this is possible :)

http://www.openoffice.org/issues/show_bug.cgi?id=105992
zooming documents containg (alive) form controls improperly positions the controls

http://www.openoffice.org/issues/show_bug.cgi?id=104362
crash when copy a control

http://www.openoffice.org/issues/show_bug.cgi?id=104544
Gridcontrol duplicated after design view on/off

http://www.openoffice.org/issues/show_bug.cgi?id=102089
print preview shows control elements with property printable=false

http://www.openoffice.org/issues/show_bug.cgi?id=102090
problem with setVisible on TextControl

http://www.openoffice.org/issues/show_bug.cgi?id=103138
loop when insert a control in draw

http://www.openoffice.org/issues/show_bug.cgi?id=101398
initially-displaying a document with many controls is very slow

http://www.openoffice.org/issues/show_bug.cgi?id=72429
repaint error in form wizard in bugdoc database

http://www.openoffice.org/issues/show_bug.cgi?id=72694
form control artifacts when scrolling a text fast


issues in the old (Sun-internal) bug tracking system:

#110592#
form controls being in redlining or in hidden section are visible in alive-mode

*/

//........................................................................
namespace sdr { namespace contact {
//........................................................................

    /** === begin UNO using === **/
    using namespace ::com::sun::star::awt::InvalidateStyle;
    using ::com::sun::star::uno::Reference;
    using ::com::sun::star::uno::XInterface;
    using ::com::sun::star::uno::UNO_QUERY;
    using ::com::sun::star::uno::UNO_QUERY_THROW;
    using ::com::sun::star::uno::UNO_SET_THROW;
    using ::com::sun::star::uno::Exception;
    using ::com::sun::star::uno::RuntimeException;
    using ::com::sun::star::awt::XControl;
    using ::com::sun::star::lang::XMultiServiceFactory;
    using ::com::sun::star::awt::XControlModel;
    using ::com::sun::star::awt::XControlContainer;
    using ::com::sun::star::awt::XWindow;
    using ::com::sun::star::awt::XWindow2;
    using ::com::sun::star::awt::XWindowListener;
    using ::com::sun::star::awt::PosSize::POSSIZE;
    using ::com::sun::star::awt::XView;
    using ::com::sun::star::awt::XGraphics;
    using ::com::sun::star::awt::WindowEvent;
    using ::com::sun::star::beans::XPropertySet;
    using ::com::sun::star::beans::XPropertySetInfo;
    using ::com::sun::star::lang::XComponent;
    using ::com::sun::star::awt::XWindowPeer;
    using ::com::sun::star::beans::XPropertyChangeListener;
    using ::com::sun::star::util::XModeChangeListener;
    using ::com::sun::star::util::XModeChangeBroadcaster;
    using ::com::sun::star::util::ModeChangeEvent;
    using ::com::sun::star::lang::EventObject;
    using ::com::sun::star::beans::PropertyChangeEvent;
    using ::com::sun::star::lang::XComponent;
    using ::com::sun::star::container::XContainerListener;
    using ::com::sun::star::container::XContainer;
    using ::com::sun::star::container::ContainerEvent;
    using ::com::sun::star::uno::Any;
    /** === end UNO using === **/

    //====================================================================
    //= ControlHolder
    //====================================================================
    class ControlHolder
    {
    private:
        Reference< XControl >   m_xControl;
        Reference< XWindow2 >   m_xControlWindow;
        Reference< XView    >   m_xControlView;

    public:
        ControlHolder()
            :m_xControl()
            ,m_xControlWindow()
            ,m_xControlView()
        {
        }

        explicit ControlHolder( const Reference< XControl >& _rxControl )
            :m_xControl()
            ,m_xControlWindow()
            ,m_xControlView()
        {
            *this = _rxControl;
        }

        ControlHolder& operator=( const Reference< XControl >& _rxControl )
        {
            clear();

            m_xControl = _rxControl;
            if ( m_xControl.is() )
            {
                m_xControlWindow.set( m_xControl, UNO_QUERY );
                m_xControlView.set( m_xControl, UNO_QUERY );
                if ( !m_xControlWindow.is() || !m_xControlView.is() )
                {
                    OSL_ENSURE( false, "ControlHolder::operator=: invalid XControl, missing required interfaces!" );
                    clear();
                }
            }

            return *this;
        }

    public:
        inline  bool    is() const { return m_xControl.is() && m_xControlWindow.is() && m_xControlView.is(); }
        inline  void    clear() { m_xControl.clear(); m_xControlWindow.clear(); m_xControlView.clear(); }

        // delegators for the methods of the UNO interfaces
        // Note all those will crash if called for a NULL object.
        inline bool     isDesignMode() const                        { return m_xControl->isDesignMode();         }
        inline void     setDesignMode( const bool _bDesign ) const  { m_xControl->setDesignMode( _bDesign );     }
        inline bool     isVisible() const                           { return m_xControlWindow->isVisible();      }
        inline void     setVisible( const bool _bVisible ) const    { m_xControlWindow->setVisible( _bVisible ); }
        inline Reference< XControlModel >
                        getModel() const { return m_xControl->getModel(); }
        inline void     setModel( const Reference< XControlModel >& _m ) const { m_xControl->setModel( _m ); }
        inline bool     isTransparent() const { return m_xControl->isTransparent(); }
        inline Reference< XWindowPeer >
                        getPeer() const { return m_xControl->getPeer(); }

        inline void     addWindowListener( const Reference< XWindowListener >& _l ) const    { m_xControlWindow->addWindowListener( _l );    }
        inline void     removeWindowListener( const Reference< XWindowListener >& _l ) const { m_xControlWindow->removeWindowListener( _l ); }
               void     setPosSize( const Rectangle& _rPosSize ) const;
               Rectangle
                        getPosSize() const;
               void     setZoom( const ::basegfx::B2DVector& _rScale ) const;
               ::basegfx::B2DVector
                        getZoom() const;

        inline void     setGraphics( const Reference< XGraphics >& _g ) const { m_xControlView->setGraphics( _g ); }
        inline Reference< XGraphics >
                        getGraphics() const { return m_xControlView->getGraphics(); }
        inline void     draw( const Point& _rTopLeft ) const { m_xControlView->draw( _rTopLeft.X(), _rTopLeft.Y() ); }

               void     invalidate() const;

    public:
        inline  const Reference< XControl >&    getControl() const  { return m_xControl; }
    };

    //--------------------------------------------------------------------
    bool operator==( const ControlHolder& _rControl, const Reference< XInterface >& _rxCompare )
    {
        return _rControl.getControl() == _rxCompare;
    }

    //--------------------------------------------------------------------
    bool operator==( const Reference< XInterface >& _rxCompare, const ControlHolder& _rControl )
    {
        return _rxCompare == _rControl.getControl();
    }

    //--------------------------------------------------------------------
    bool operator==( const ControlHolder& _rControl, const Any& _rxCompare )
    {
        return _rControl == Reference< XInterface >( _rxCompare, UNO_QUERY );
    }

    //--------------------------------------------------------------------
    bool operator==( const Any& _rxCompare, const ControlHolder& _rControl )
    {
        return Reference< XInterface >( _rxCompare, UNO_QUERY ) == _rControl;
    }

    //--------------------------------------------------------------------
    void ControlHolder::setPosSize( const Rectangle& _rPosSize ) const
    {
        // no check whether we're valid, this is the responsibility of the caller

        // don't call setPosSize when pos/size did not change
        // #i104181# / 2009-08-18 / frank.schoenheit@sun.com
        ::Rectangle aCurrentRect( getPosSize() );
        if ( aCurrentRect != _rPosSize )
        {
            m_xControlWindow->setPosSize(
                _rPosSize.Left(), _rPosSize.Top(), _rPosSize.GetWidth(), _rPosSize.GetHeight(),
                POSSIZE
            );
        }
    }

    //--------------------------------------------------------------------
    ::Rectangle ControlHolder::getPosSize() const
    {
        // no check whether we're valid, this is the responsibility of the caller
        return VCLUnoHelper::ConvertToVCLRect( m_xControlWindow->getPosSize() );
    }

    //--------------------------------------------------------------------
    void ControlHolder::setZoom( const ::basegfx::B2DVector& _rScale ) const
    {
        // no check whether we're valid, this is the responsibility of the caller
        m_xControlView->setZoom( (float)_rScale.getX(), (float)_rScale.getY() );
    }

    //--------------------------------------------------------------------
    void ControlHolder::invalidate() const
    {
        Reference< XWindowPeer > xPeer( m_xControl->getPeer() );
        if ( xPeer.is() )
        {
            Window* pWindow = VCLUnoHelper::GetWindow( xPeer );
            OSL_ENSURE( pWindow, "ControlHolder::invalidate: no implementation access!" );
            if ( pWindow )
                pWindow->Invalidate();
        }
    }

    //--------------------------------------------------------------------
    ::basegfx::B2DVector ControlHolder::getZoom() const
    {
        // no check whether we're valid, this is the responsibility of the caller

        // Argh. Why does XView have a setZoom only, but not a getZoom?
        Window* pWindow = VCLUnoHelper::GetWindow( m_xControl->getPeer() );
        OSL_ENSURE( pWindow, "ControlHolder::getZoom: no implementation access!" );

        ::basegfx::B2DVector aZoom( 1, 1 );
        if ( pWindow )
        {
            const Fraction& rZoom( pWindow->GetZoom() );
            aZoom.setX( (double)rZoom );
            aZoom.setY( (double)rZoom );
        }
        return aZoom;
    }

    //====================================================================
    //= UnoControlContactHelper
    //====================================================================
    class UnoControlContactHelper
    {
    public:
        /** positions a control, and sets its zoom mode, using a given transformation and output device
        */
        static void adjustControlGeometry_throw(
                const ControlHolder& _rControl,
                const Rectangle& _rLogicBoundingRect,
                const ::basegfx::B2DHomMatrix& _rViewTransformation,
                const ::basegfx::B2DHomMatrix& _rZoomLevelNormalization
            );

        /** disposes the given control
        */
        static void disposeAndClearControl_nothrow(
                ControlHolder& _rControl
            );

    private:
        UnoControlContactHelper();                                              // never implemented
        UnoControlContactHelper( const UnoControlContactHelper& );              // never implemented
        UnoControlContactHelper& operator=( const UnoControlContactHelper& );   // never implemented
    };

    //--------------------------------------------------------------------
    void UnoControlContactHelper::adjustControlGeometry_throw( const ControlHolder& _rControl, const Rectangle& _rLogicBoundingRect,
        const basegfx::B2DHomMatrix& _rViewTransformation, const ::basegfx::B2DHomMatrix& _rZoomLevelNormalization )
    {
        OSL_PRECOND( _rControl.is(), "UnoControlContactHelper::adjustControlGeometry_throw: illegal control!" );
        if ( !_rControl.is() )
            return;

    #if OSL_DEBUG_LEVEL > 0
        ::basegfx::B2DTuple aViewScale, aViewTranslate;
        double nViewRotate(0), nViewShearX(0);
        _rViewTransformation.decompose( aViewScale, aViewTranslate, nViewRotate, nViewShearX );

        ::basegfx::B2DTuple aZoomScale, aZoomTranslate;
        double nZoomRotate(0), nZoomShearX(0);
        _rZoomLevelNormalization.decompose( aZoomScale, aZoomTranslate, nZoomRotate, nZoomShearX );
    #endif

        // transform the logic bound rect, using the view transformation, to pixel coordinates
        ::basegfx::B2DPoint aTopLeft( _rLogicBoundingRect.Left(), _rLogicBoundingRect.Top() );
        aTopLeft *= _rViewTransformation;
        ::basegfx::B2DPoint aBottomRight( _rLogicBoundingRect.Right(), _rLogicBoundingRect.Bottom() );
        aBottomRight *= _rViewTransformation;

        const Rectangle aPaintRectPixel( (long)aTopLeft.getX(), (long)aTopLeft.getY(), (long)aBottomRight.getX(), (long)aBottomRight.getY() );
        _rControl.setPosSize( aPaintRectPixel );

        // determine the scale from the current view transformation, and the normalization matrix
        ::basegfx::B2DHomMatrix aObtainResolutionDependentScale( _rViewTransformation * _rZoomLevelNormalization );
        ::basegfx::B2DVector aScale, aTranslate;
		double fRotate, fShearX;
		aObtainResolutionDependentScale.decompose( aScale, aTranslate, fRotate, fShearX );
        _rControl.setZoom( aScale );
    }

    //--------------------------------------------------------------------
    void UnoControlContactHelper::disposeAndClearControl_nothrow( ControlHolder& _rControl )
    {
        try
        {
            Reference< XComponent > xControlComp( _rControl.getControl(), UNO_QUERY );
            if ( xControlComp.is() )
                xControlComp->dispose();
        }
        catch( const Exception& )
        {
            DBG_UNHANDLED_EXCEPTION();
        }
        _rControl.clear();
    }

    //====================================================================
    //= IPageViewAccess
    //====================================================================
    /** interface encapsulating access to an SdrPageView, stripped down to the methods we really need
     */
    class IPageViewAccess
    {
    public:
        /** determines whether the view is currently in design mode
         */
        virtual bool    isDesignMode() const = 0;

        /** retrieves the control container for a given output device
         */
        virtual Reference< XControlContainer >
                        getControlContainer( const OutputDevice& _rDevice ) const = 0;

        /** determines whether a given layer is visible
         */
        virtual bool    isLayerVisible( SdrLayerID _nLayerID ) const = 0;
    };

    //====================================================================
    //= SdrPageViewAccess
    //====================================================================
    /** is a ->IPageViewAccess implementation based on a real ->SdrPageView instance
     */
    class SdrPageViewAccess : public IPageViewAccess
    {
        const SdrPageView&  m_rPageView;
    public:
        SdrPageViewAccess( const SdrPageView& _rPageView ) : m_rPageView( _rPageView ) { }

        virtual bool    isDesignMode() const;
        virtual Reference< XControlContainer >
                        getControlContainer( const OutputDevice& _rDevice ) const;
        virtual bool    isLayerVisible( SdrLayerID _nLayerID ) const;
    };

    //--------------------------------------------------------------------
    bool SdrPageViewAccess::isDesignMode() const
    {
        return m_rPageView.GetView().IsDesignMode();
    }

    //--------------------------------------------------------------------
    Reference< XControlContainer > SdrPageViewAccess::getControlContainer( const OutputDevice& _rDevice ) const
    {
        Reference< XControlContainer > xControlContainer = m_rPageView.GetControlContainer( _rDevice );
        DBG_ASSERT( xControlContainer.is() || NULL == m_rPageView.FindPageWindow( ( const_cast< OutputDevice& >( _rDevice ) ) ),
            "SdrPageViewAccess::getControlContainer: the output device is known, but there is no control container for it?" );
        return xControlContainer;
    }

    //--------------------------------------------------------------------
    bool SdrPageViewAccess::isLayerVisible( SdrLayerID _nLayerID ) const
    {
        return m_rPageView.GetVisibleLayers().IsSet( _nLayerID );
    }

    //====================================================================
    //= InvisibleControlViewAccess
    //====================================================================
    /** is a ->IPageViewAccess implementation which can be used to create an invisble control for
        an arbitrary window
     */
    class InvisibleControlViewAccess : public IPageViewAccess
    {
    private:
        Reference< XControlContainer >& m_rControlContainer;
    public:
        InvisibleControlViewAccess( Reference< XControlContainer >& _inout_ControlContainer )
            :m_rControlContainer( _inout_ControlContainer )
        {
        }

        virtual bool    isDesignMode() const;
        virtual Reference< XControlContainer >
                        getControlContainer( const OutputDevice& _rDevice ) const;
        virtual bool    isLayerVisible( SdrLayerID _nLayerID ) const;
    };

    //--------------------------------------------------------------------
    bool InvisibleControlViewAccess::isDesignMode() const
    {
        return true;
    }

    //--------------------------------------------------------------------
    Reference< XControlContainer > InvisibleControlViewAccess::getControlContainer( const OutputDevice& _rDevice ) const
    {
        if ( !m_rControlContainer.is() )
        {
            const Window* pWindow = dynamic_cast< const Window* >( &_rDevice );
            OSL_ENSURE( pWindow, "InvisibleControlViewAccess::getControlContainer: expected to be called for a window only!" );
            if ( pWindow )
                m_rControlContainer = VCLUnoHelper::CreateControlContainer( const_cast< Window* >( pWindow ) );
        }
        return m_rControlContainer;
    }

    //--------------------------------------------------------------------
    bool InvisibleControlViewAccess::isLayerVisible( SdrLayerID /*_nLayerID*/ ) const
    {
        return false;
    }

    //====================================================================
    //= DummyPageViewAccess
    //====================================================================
    /** is a ->IPageViewAccess implementation which can be used to create a control for an arbitrary
        non-Window device

        The implementation will report the "PageView" as being in design mode, all layers to be visible,
        and will not return any ControlContainer, so all control container related features (notifications etc)
        are not available.
     */
    class DummyPageViewAccess : public IPageViewAccess
    {
    public:
        DummyPageViewAccess()
        {
        }

        virtual bool    isDesignMode() const;
        virtual Reference< XControlContainer >
                        getControlContainer( const OutputDevice& _rDevice ) const;
        virtual bool    isLayerVisible( SdrLayerID _nLayerID ) const;
    };

    //--------------------------------------------------------------------
    bool DummyPageViewAccess::isDesignMode() const
    {
        return true;
    }

    //--------------------------------------------------------------------
    Reference< XControlContainer > DummyPageViewAccess::getControlContainer( const OutputDevice& /*_rDevice*/ ) const
    {
        return NULL;
    }

    //--------------------------------------------------------------------
    bool DummyPageViewAccess::isLayerVisible( SdrLayerID /*_nLayerID*/ ) const
    {
        return true;
    }

    //====================================================================
    //= ViewObjectContactOfUnoControl_Impl
    //====================================================================
    typedef     ::cppu::WeakImplHelper4 <   XWindowListener
                                        ,   XPropertyChangeListener
                                        ,   XContainerListener
                                        ,   XModeChangeListener
                                        >   ViewObjectContactOfUnoControl_Impl_Base;

    class SVX_DLLPRIVATE ViewObjectContactOfUnoControl_Impl : public ViewObjectContactOfUnoControl_Impl_Base
    {
    private:
        /// the instance whose IMPL we are
        ViewObjectContactOfUnoControl*  m_pAntiImpl;

        /// are we currently inside impl_ensureControl_nothrow?
        bool                            m_bCreatingControl;

        /** thread safety

            (not really. ATM only our X* implementations are guarded with this, but not
            the object as a whole.)
        */
        mutable ::osl::Mutex            m_aMutex;

        /// the control we're responsible for
        ControlHolder                   m_aControl;

        /// the ControlContainer where we inserted our control
        Reference< XContainer >         m_xContainer;

        /// the output device for which the control was created
        const OutputDevice*             m_pOutputDeviceForWindow;

        /// flag indicating whether the control is currently visible
        bool                            m_bControlIsVisible;

        /// are we currently listening at a design mode control?
        bool                            m_bIsDesignModeListening;

        enum ViewControlMode
        {
            eDesign,
            eAlive,
            eUnknown
        };
        /// is the control currently in design mode?
        mutable ViewControlMode         m_eControlDesignMode;

        ::basegfx::B2DHomMatrix         m_aZoomLevelNormalization;

    public:
        ViewObjectContactOfUnoControl_Impl( ViewObjectContactOfUnoControl* _pAntiImpl );

        /** disposes the instance, which is nonfunctional afterwards
        */
        void dispose();

        /** determines whether the instance is disposed
        */
        bool isDisposed() const { return impl_isDisposed_nofail(); }

        /** determines whether the instance is alive
        */
        bool isAlive() const { return !isDisposed(); }

        /** returns the SdrUnoObject associated with the ViewContact

            @precond
                We're not disposed.
        */
        bool    getUnoObject( SdrUnoObj*& _out_rpObject ) const;

        /** ensures that we have an ->XControl

            Must only be called if a control is needed when no DisplayInfo is present, yet.

            For creating a control, an ->OutputDevice is needed, and an ->SdrPageView. Both will be obtained
            from a ->ObjectContactOfPageView. So, if our (anti-impl's) object contact is not a ->ObjectContactOfPageView,
            this method fill fail.

            Failure of this method will be reported via an assertion in a non-product version.
        */
        bool    ensureControl( const basegfx::B2DHomMatrix* _pInitialViewTransformationOrNULL );

        /** returns our XControl, if it already has been created

            If you want to ensure that the control exists before accessing it, use ->ensureControl
        */
        inline const ControlHolder&
                getExistentControl() const { return m_aControl; }

        inline bool
                hasControl() const { return m_aControl.is(); }

        /** positions our XControl according to the geometry settings in the SdrUnoObj, modified by the given
            transformation, and sets proper zoom settings according to our device

            @precond
                ->m_pOutputDeviceForWindow and ->m_aControl are not <NULL/>
        */
        void    positionAndZoomControl( const basegfx::B2DHomMatrix& _rViewTransformation ) const;

        /** determines whether or not our control is printable

            Effectively, this method returns the value of the "Printable" property
            of the control's model. If we have no control, <FALSE/> is returned.
        */
        bool    isPrintableControl() const;

        /** sets the design mode on the control, or at least remembers the flag for the
            time the control is created
        */
        void    setControlDesignMode( bool _bDesignMode ) const;

        /** determines whether our control is currently visible
            @nofail
        */
        bool    isControlVisible() const { return impl_isControlVisible_nofail(); }

        /// creates an XControl for the given device and SdrUnoObj
        static bool
                createControlForDevice(
                    IPageViewAccess& _rPageView,
                    const OutputDevice& _rDevice,
                    const SdrUnoObj& _rUnoObject,
                    const basegfx::B2DHomMatrix& _rInitialViewTransformation,
                    const basegfx::B2DHomMatrix& _rInitialZoomNormalization,
                    ControlHolder& _out_rControl
                );

        struct GuardAccess { friend class VOCGuard; private: GuardAccess() { } };
        ::osl::Mutex&   getMutex( GuardAccess ) const { return m_aMutex; }

        const ViewContactOfUnoControl&
                getViewContact() const
        {
            ENSURE_OR_THROW( !impl_isDisposed_nofail(), "already disposed" );
            return static_cast< const ViewContactOfUnoControl& >( m_pAntiImpl->GetViewContact() );
        }

    protected:
        ~ViewObjectContactOfUnoControl_Impl();

        // XEventListener
        virtual void SAL_CALL disposing( const EventObject& Source ) throw(RuntimeException);

        // XWindowListener
        virtual void SAL_CALL windowResized( const WindowEvent& e ) throw(RuntimeException);
        virtual void SAL_CALL windowMoved( const WindowEvent& e ) throw(RuntimeException);
        virtual void SAL_CALL windowShown( const EventObject& e ) throw(RuntimeException);
        virtual void SAL_CALL windowHidden( const EventObject& e ) throw(RuntimeException);

        // XPropertyChangeListener
        virtual void SAL_CALL propertyChange( const PropertyChangeEvent& evt ) throw(RuntimeException);

        // XModeChangeListener
        virtual void SAL_CALL modeChanged( const ModeChangeEvent& _rSource ) throw (RuntimeException);

        // XContainerListener
        virtual void SAL_CALL elementInserted( const ::com::sun::star::container::ContainerEvent& Event ) throw (::com::sun::star::uno::RuntimeException);
        virtual void SAL_CALL elementRemoved( const ::com::sun::star::container::ContainerEvent& Event ) throw (::com::sun::star::uno::RuntimeException);
        virtual void SAL_CALL elementReplaced( const ::com::sun::star::container::ContainerEvent& Event ) throw (::com::sun::star::uno::RuntimeException);

    private:
        /** retrieves the SdrPageView which our associated SdrPageViewWindow belongs to

            @param out_rpPageView
                a reference to a pointer holding, upon return, the desired SdrPageView

            @return
                <TRUE/> if and only if a ->SdrPageView could be obtained

            @precond
                We really belong to an SdrPageViewWindow. Perhaps (I'm not sure ATM :)
                there are instance for which this might not be true, but those instances
                should never have a need to call this method.

            @precond
                We're not disposed.

            @postcond
                The method expects success, if it returns with <FALSE/>, this will have been
                asserted.

            @nothrow
        */
        bool    impl_getPageView_nothrow( SdrPageView*& _out_rpPageView );

        /** adjusts the control visibility so it respects its layer's visibility

            @param _bForce
                set to <TRUE/> if you want to force a ->XWindow::setVisible call,
                no matter if the control visibility is already correct

            @precond
                ->m_aControl is not <NULL/>

            @precond
                We're not disposed.

            @precond
                We really belong to an SdrPageViewWindow. There are instance for which this
                might not be true, but those instances should never have a need to call
                this method.
        */
        void impl_adjustControlVisibilityToLayerVisibility_throw( bool _bForce );

        /** adjusts the control visibility so it respects its layer's visibility

            The control must never be visibile if it's in design mode.
            In alive mode, it must be visibility if and only it's on a visible layer.

            @param _rxControl
                the control whose visibility is to be adjusted

            @param _rPageView
                provides access to the attributes of the SdrPageView which the control finally belongs to

            @param _rUnoObject
                our SdrUnoObj

            @param _bIsCurrentlyVisible
                determines whether the control is currently visible. Note that this is only a shortcut for
                querying _rxControl for the XWindow2 interface, and calling isVisible at this interface.
                This shortcut has been chosen since the caller usually already has this information.
                If _bForce is <TRUE/>, _bIsCurrentlyVisible is ignored.

            @param _bForce
                set to <TRUE/> if you want to force a ->XWindow::setVisible call,
                no matter if the control visibility is already correct

            @precond
                We're not disposed.
        */
        static void impl_adjustControlVisibilityToLayerVisibility_throw( const ControlHolder& _rxControl, const SdrUnoObj& _rUnoObject,
            IPageViewAccess& _rPageView, bool _bIsCurrentlyVisible, bool _bForce );

        /** starts or stops listening at various aspects of our control

            @precond
                ->m_aControl is not <NULL/>
        */
        void impl_switchControlListening_nothrow( bool _bStart );

        /** starts or stops listening at our control container

            @precond
                ->m_xContainer is not <NULL/>
        */
        void impl_switchContainerListening_nothrow( bool _bStart );

        /** starts or stops listening at the control for design-mode relevant facets
        */
        void impl_switchDesignModeListening_nothrow( bool _bStart );

        /** starts or stops listening for all properties at our control

            @param _bStart
                determines whether to start or to stop listening

            @precond
                ->m_aControl is not <NULL/>
        */
        void impl_switchPropertyListening_nothrow( bool _bStart );

        /** disposes the instance
            @param _bAlsoDisposeControl
                determines whether the XControl should be disposed, too
        */
        void impl_dispose_nothrow( bool _bAlsoDisposeControl );

        /** determines whether the instance is disposed
            @nofail
        */
        bool    impl_isDisposed_nofail() const { return m_pAntiImpl == NULL; }

        /** determines whether our control is currently visible
            @nofail
        */
        bool    impl_isControlVisible_nofail() const { return m_bControlIsVisible; }

        /** determines whether we are currently a listener at the control for desgin-mode relevant facets
            @nofail
        */
        bool    impl_isDesignModeListening_nofail() const { return m_bIsDesignModeListening; }

        /** determines whether the control currently is in design mode

            @precond
                The design mode must already be known. It is known when we first had access to
                an SdrPageView (which carries this flag), or somebody explicitly set it from
                outside.
        */
        inline bool impl_isControlDesignMode_nothrow() const
        {
            DBG_ASSERT( m_eControlDesignMode != eUnknown, "ViewObjectContactOfUnoControl_Impl::impl_isControlDesignMode_nothrow: mode is still unknown!" );
            return m_eControlDesignMode == eDesign;
        }

        /** ensures that we have a control for the given PageView/OutputDevice
        */
        bool impl_ensureControl_nothrow(
                IPageViewAccess& _rPageView,
                const OutputDevice& _rDevice,
                const basegfx::B2DHomMatrix& _rInitialViewTransformation
             );

        /** retrieves the device which a PageView belongs to, starting from its ObjectContactOfPageView

            Since #i72752#, the PaintWindow (and thus the OutputDevice) associated with a PageView is not
            constant over its lifetime. Instead, during some paint operations, the PaintWindow/OutputDevice
            might be temporarily patched.

            This method cares for this, by retrieving the very original OutputDevice.
        */
        static const OutputDevice& impl_getPageViewOutputDevice_nothrow( const ObjectContactOfPageView& _rObjectContact );

        const OutputDevice& impl_getOutputDevice_throw() const;

    private:
        ViewObjectContactOfUnoControl_Impl();                                                       // never implemented
        ViewObjectContactOfUnoControl_Impl( const ViewObjectContactOfUnoControl_Impl& );            // never implemented
        ViewObjectContactOfUnoControl_Impl& operator=( const ViewObjectContactOfUnoControl_Impl& ); // never implemented
    };

    //====================================================================
    //= VOCGuard
    //====================================================================
    /** class for guarding a ViewObjectContactOfUnoControl_Impl method
     */
    class VOCGuard
    {
    private:
        ::osl::MutexGuard   m_aMutexGuard;

    public:
        VOCGuard( const ViewObjectContactOfUnoControl_Impl& _rImpl )
            :m_aMutexGuard( _rImpl.getMutex( ViewObjectContactOfUnoControl_Impl::GuardAccess() ) )
        {
        }
    };

    //====================================================================
    //= LazyControlCreationPrimitive2D
    //====================================================================
    class LazyControlCreationPrimitive2D : public ::drawinglayer::primitive2d::BufferedDecompositionPrimitive2D
    {
    private:
        typedef ::drawinglayer::primitive2d::BufferedDecompositionPrimitive2D  BufferedDecompositionPrimitive2D;

    protected:
        virtual ::drawinglayer::primitive2d::Primitive2DSequence
            get2DDecomposition(
                const ::drawinglayer::geometry::ViewInformation2D& rViewInformation
            ) const;

        virtual ::drawinglayer::primitive2d::Primitive2DSequence
            create2DDecomposition(
                const ::drawinglayer::geometry::ViewInformation2D& rViewInformation
            ) const;

        virtual ::basegfx::B2DRange
            getB2DRange(
                const ::drawinglayer::geometry::ViewInformation2D& rViewInformation
            ) const;

    public:
        LazyControlCreationPrimitive2D( const ::rtl::Reference< ViewObjectContactOfUnoControl_Impl >& _pVOCImpl )
            :m_pVOCImpl( _pVOCImpl )
        {
            ENSURE_OR_THROW( m_pVOCImpl.is(), "Illegal argument." );
            getTransformation( m_pVOCImpl->getViewContact(), m_aTransformation );
        }

        virtual bool operator==(const BasePrimitive2D& rPrimitive) const;

        // declare unique ID for this primitive class
        DeclPrimitrive2DIDBlock()

        static void getTransformation( const ViewContactOfUnoControl& _rVOC, ::basegfx::B2DHomMatrix& _out_Transformation );

    private:
        void impl_positionAndZoomControl( const ::drawinglayer::geometry::ViewInformation2D& _rViewInformation ) const
        {
            if ( !_rViewInformation.getViewport().isEmpty() )
                m_pVOCImpl->positionAndZoomControl( _rViewInformation.getObjectToViewTransformation() );
        }

    private:
        ::rtl::Reference< ViewObjectContactOfUnoControl_Impl >  m_pVOCImpl;
        /** The geometry is part of the identity of an primitive, so we cannot calculate it on demand
            (since the data the calculation is based on might have changed then), but need to calc
            it at construction time, and remember it.
        */
        ::basegfx::B2DHomMatrix                                 m_aTransformation;
    };

    //====================================================================
    //= ViewObjectContactOfUnoControl_Impl
    //====================================================================
    DBG_NAME( ViewObjectContactOfUnoControl_Impl )
    //--------------------------------------------------------------------
    ViewObjectContactOfUnoControl_Impl::ViewObjectContactOfUnoControl_Impl( ViewObjectContactOfUnoControl* _pAntiImpl )
        :m_pAntiImpl( _pAntiImpl )
        ,m_bCreatingControl( false )
        ,m_pOutputDeviceForWindow( NULL )
        ,m_bControlIsVisible( false )
        ,m_bIsDesignModeListening( false )
        ,m_eControlDesignMode( eUnknown )
        ,m_aZoomLevelNormalization()
    {
        DBG_CTOR( ViewObjectContactOfUnoControl_Impl, NULL );
        DBG_ASSERT( m_pAntiImpl, "ViewObjectContactOfUnoControl_Impl::ViewObjectContactOfUnoControl_Impl: invalid AntiImpl!" );

        const OutputDevice& rPageViewDevice( impl_getOutputDevice_throw() );
        m_aZoomLevelNormalization = rPageViewDevice.GetInverseViewTransformation();

    #if OSL_DEBUG_LEVEL > 1
        ::basegfx::B2DVector aScale, aTranslate;
        double fRotate, fShearX;
        m_aZoomLevelNormalization.decompose( aScale, aTranslate, fRotate, fShearX );
    #endif

        ::basegfx::B2DHomMatrix aScaleNormalization;
        MapMode aCurrentDeviceMapMode( rPageViewDevice.GetMapMode() );
        aScaleNormalization.set( 0, 0, (double)aCurrentDeviceMapMode.GetScaleX() );
        aScaleNormalization.set( 1, 1, (double)aCurrentDeviceMapMode.GetScaleY() );
        m_aZoomLevelNormalization *= aScaleNormalization;

    #if OSL_DEBUG_LEVEL > 1
        m_aZoomLevelNormalization.decompose( aScale, aTranslate, fRotate, fShearX );
    #endif
   }

    //--------------------------------------------------------------------
    ViewObjectContactOfUnoControl_Impl::~ViewObjectContactOfUnoControl_Impl()
    {
        if ( !impl_isDisposed_nofail() )
        {
            acquire();
            dispose();
        }

        DBG_DTOR( ViewObjectContactOfUnoControl_Impl, NULL );
    }

    //--------------------------------------------------------------------
    void ViewObjectContactOfUnoControl_Impl::impl_dispose_nothrow( bool _bAlsoDisposeControl )
    {
        if ( impl_isDisposed_nofail() )
            return;

        if ( m_aControl.is() )
            impl_switchControlListening_nothrow( false );

        if ( m_xContainer.is() )
            impl_switchContainerListening_nothrow( false );

        // dispose the control
        if ( _bAlsoDisposeControl )
            UnoControlContactHelper::disposeAndClearControl_nothrow( m_aControl );

        m_aControl.clear();
        m_xContainer.clear();
        m_pOutputDeviceForWindow = NULL;
        m_bControlIsVisible = false;

        m_pAntiImpl = NULL;
    }

    //--------------------------------------------------------------------
    void ViewObjectContactOfUnoControl_Impl::dispose()
    {
        VOCGuard aGuard( *this );
        impl_dispose_nothrow( true );
    }

    //--------------------------------------------------------------------
    bool ViewObjectContactOfUnoControl_Impl::getUnoObject( SdrUnoObj*& _out_rpObject ) const
    {
        OSL_PRECOND( !impl_isDisposed_nofail(), "ViewObjectContactOfUnoControl_Impl::getUnoObject: already disposed()" );
        if ( impl_isDisposed_nofail() )
            _out_rpObject = NULL;
        else
        {
            _out_rpObject = dynamic_cast< SdrUnoObj* >( m_pAntiImpl->GetViewContact().TryToGetSdrObject() );
            DBG_ASSERT( _out_rpObject || !m_pAntiImpl->GetViewContact().TryToGetSdrObject(),
                "ViewObjectContactOfUnoControl_Impl::getUnoObject: invalid SdrObject!" );
        }
        return ( _out_rpObject != NULL );
    }

    //--------------------------------------------------------------------
    void ViewObjectContactOfUnoControl_Impl::positionAndZoomControl( const basegfx::B2DHomMatrix& _rViewTransformation ) const
    {
        OSL_PRECOND( m_aControl.is(), "ViewObjectContactOfUnoControl_Impl::positionAndZoomControl: no output device or no control!" );
        if ( !m_aControl.is() )
            return;

        try
        {
            SdrUnoObj* pUnoObject( NULL );
            if ( getUnoObject( pUnoObject ) )
            {
                UnoControlContactHelper::adjustControlGeometry_throw( m_aControl, pUnoObject->GetLogicRect(), _rViewTransformation, m_aZoomLevelNormalization );
            }
            else
                OSL_ENSURE( false, "ViewObjectContactOfUnoControl_Impl::positionAndZoomControl: no SdrUnoObj!" );
        }
        catch( const Exception& )
        {
            DBG_UNHANDLED_EXCEPTION();
        }
    }

    //--------------------------------------------------------------------
    bool ViewObjectContactOfUnoControl_Impl::ensureControl( const basegfx::B2DHomMatrix* _pInitialViewTransformationOrNULL )
    {
        OSL_PRECOND( !impl_isDisposed_nofail(), "ViewObjectContactOfUnoControl_Impl::ensureControl: already disposed()" );
        if ( impl_isDisposed_nofail() )
            return false;

        ObjectContactOfPageView* pPageViewContact = dynamic_cast< ObjectContactOfPageView* >( &m_pAntiImpl->GetObjectContact() );
        if ( pPageViewContact )
        {
            SdrPageViewAccess aPVAccess( pPageViewContact->GetPageWindow().GetPageView() );
            const OutputDevice& rDevice( impl_getPageViewOutputDevice_nothrow( *pPageViewContact ) );
            return impl_ensureControl_nothrow(
                aPVAccess,
                rDevice,
                _pInitialViewTransformationOrNULL ? *_pInitialViewTransformationOrNULL : rDevice.GetViewTransformation()
            );
        }

        DummyPageViewAccess aNoPageView;
        const OutputDevice& rDevice( impl_getOutputDevice_throw() );
        return impl_ensureControl_nothrow(
            aNoPageView,
            rDevice,
            _pInitialViewTransformationOrNULL ? *_pInitialViewTransformationOrNULL : rDevice.GetViewTransformation()
        );
    }

    //--------------------------------------------------------------------
    const OutputDevice& ViewObjectContactOfUnoControl_Impl::impl_getOutputDevice_throw() const
    {
        ObjectContactOfPageView* pPageViewContact = dynamic_cast< ObjectContactOfPageView* >( &m_pAntiImpl->GetObjectContact() );
        if ( pPageViewContact )
        {
            // do not use ObjectContact::TryToGetOutputDevice here, it would not care for the PageWindow's
            // OriginalPaintWindow
            return impl_getPageViewOutputDevice_nothrow( *pPageViewContact );
        }

        const OutputDevice* pDevice = m_pAntiImpl->GetObjectContact().TryToGetOutputDevice();
        ENSURE_OR_THROW( pDevice, "no output device -> no control" );
        return *pDevice;
    }

    //--------------------------------------------------------------------
    const OutputDevice& ViewObjectContactOfUnoControl_Impl::impl_getPageViewOutputDevice_nothrow( const ObjectContactOfPageView& _rObjectContact )
    {
        // if the PageWindow has a patched PaintWindow, use the original PaintWindow
        // this ensures that our control is _not_ re-created just because somebody
        // (temporarily) changed the window to paint onto.
        // #i72429# / 2007-02-20 / frank.schoenheit@sun.com
        SdrPageWindow& rPageWindow( _rObjectContact.GetPageWindow() );
        if ( rPageWindow.GetOriginalPaintWindow() )
            return rPageWindow.GetOriginalPaintWindow()->GetOutputDevice();

        return rPageWindow.GetPaintWindow().GetOutputDevice();
    }

    namespace
    {
        static void lcl_resetFlag( bool& rbFlag )
        {
            rbFlag = false;
        }
    }

    //--------------------------------------------------------------------
    bool ViewObjectContactOfUnoControl_Impl::impl_ensureControl_nothrow( IPageViewAccess& _rPageView, const OutputDevice& _rDevice,
        const basegfx::B2DHomMatrix& _rInitialViewTransformation )
    {
        if ( m_bCreatingControl )
        {
            OSL_ENSURE( false, "ViewObjectContactOfUnoControl_Impl::impl_ensureControl_nothrow: reentrance is not really good here!" );
            // We once had a situation where this was called reentrantly, which lead to all kind of strange effects. All
            // those affected the grid control, which is the only control so far which is visible in design mode (and
            // not only in alive mode).
            // Creating the control triggered an Window::Update on some of its child windows, which triggered a
            // Paint on parent of the grid control (e.g. the SwEditWin), which triggered a reentrant call to this method,
            // which it is not really prepared for.
            //
            // /me thinks that re-entrance should be caught on a higher level, i.e. the Drawing Layer should not allow
            // reentrant paint requests. For the moment, until /me can discuss this with AW, catch it here.
            // 2009-08-27 / #i104544# frank.schoenheit@sun.com
            return false;
        }

        m_bCreatingControl = true;
        ::comphelper::ScopeGuard aGuard( ::boost::bind( lcl_resetFlag, ::boost::ref( m_bCreatingControl ) ) );

        if ( m_aControl.is() )
        {
            if ( m_pOutputDeviceForWindow == &_rDevice )
                return true;

            // Somebody requested a control for a new device, which means either of
            // - our PageView's paint window changed since we were last here
            // - we don't belong to a page view, and are simply painted onto different devices
            // The first sounds strange (doens't it?), the second means we could perhaps
            // optimize this in the future - there is no need to re-create the control every time,
            // is it?
            // #i74523# / 2007-02-15 / frank.schoenheit@sun.com
            if ( m_xContainer.is() )
                impl_switchContainerListening_nothrow( false );
            impl_switchControlListening_nothrow( false );
            UnoControlContactHelper::disposeAndClearControl_nothrow( m_aControl );
        }

        SdrUnoObj* pUnoObject( NULL );
        if ( !getUnoObject( pUnoObject ) )
            return false;

        ControlHolder aControl;
        if ( !createControlForDevice( _rPageView, _rDevice, *pUnoObject, _rInitialViewTransformation, m_aZoomLevelNormalization, aControl ) )
            return false;

        m_pOutputDeviceForWindow = &_rDevice;
        m_aControl = aControl;
        m_xContainer = m_xContainer.query( _rPageView.getControlContainer( _rDevice ) );
        DBG_ASSERT( (   m_xContainer.is()                                           // either have a XControlContainer
                    ||  (   ( !_rPageView.getControlContainer( _rDevice ).is() )    // or don't have any container,
                        &&  ( dynamic_cast< const Window* >( &_rDevice ) == NULL )  // which is allowed for non-Window instances only
                        )
                    ),
            "ViewObjectContactOfUnoControl_Impl::impl_ensureControl_nothrow: no XContainer at the ControlContainer!" );

        try
        {
            m_eControlDesignMode = m_aControl.isDesignMode() ? eDesign : eAlive;
            m_bControlIsVisible = m_aControl.isVisible();
        }
        catch( const Exception& )
        {
            DBG_UNHANDLED_EXCEPTION();
        }

        // start listening at all aspects of the control which are interesting to us ...
        impl_switchControlListening_nothrow( true );

        // start listening at the control container, in case somebody tampers with our control
        if ( m_xContainer.is() )
            impl_switchContainerListening_nothrow( true );

        return m_aControl.is();
    }

    //--------------------------------------------------------------------
    bool ViewObjectContactOfUnoControl_Impl::createControlForDevice( IPageViewAccess& _rPageView,
        const OutputDevice& _rDevice, const SdrUnoObj& _rUnoObject, const basegfx::B2DHomMatrix& _rInitialViewTransformation,
        const basegfx::B2DHomMatrix& _rInitialZoomNormalization, ControlHolder& _out_rControl )
    {
        _out_rControl.clear();

        Reference< XControlModel > xControlModel( _rUnoObject.GetUnoControlModel() );
        DBG_ASSERT( xControlModel.is(), "ViewObjectContactOfUnoControl_Impl::createControlForDevice: no control model at the SdrUnoObject!?" );
        if ( !xControlModel.is() )
            return false;

        bool bSuccess = false;
        try
        {
            const ::rtl::OUString sControlServiceName( _rUnoObject.GetUnoControlTypeName() );

            Reference< XMultiServiceFactory > xFactory( ::comphelper::getProcessServiceFactory(), UNO_SET_THROW );
            _out_rControl = Reference< XControl >( xFactory->createInstance( sControlServiceName ), UNO_QUERY_THROW );

            // knit the model and the control
            _out_rControl.setModel( xControlModel );

            // proper geometry
            UnoControlContactHelper::adjustControlGeometry_throw(
                _out_rControl,
                _rUnoObject.GetLogicRect(),
                _rInitialViewTransformation,
                _rInitialZoomNormalization
            );

            // #107049# set design mode before peer is created,
            // this is also needed for accessibility
            _out_rControl.setDesignMode( _rPageView.isDesignMode() );

            // adjust the initial visibility according to the visibility of the layer
            // 2003-06-03 - #110592# - fs@openoffice.org
            impl_adjustControlVisibilityToLayerVisibility_throw( _out_rControl, _rUnoObject, _rPageView, false, true );

            // add the control to the respective control container
            // #108327# do this last
            Reference< XControlContainer > xControlContainer( _rPageView.getControlContainer( _rDevice ) );
            if ( xControlContainer.is() )
                xControlContainer->addControl( sControlServiceName, _out_rControl.getControl() );

            bSuccess = true;
        }
        catch( const Exception& )
        {
            DBG_UNHANDLED_EXCEPTION();
        }

        if ( !bSuccess )
        {
            // delete the control which might have been created already
            UnoControlContactHelper::disposeAndClearControl_nothrow( _out_rControl );
        }

        return _out_rControl.is();
    }

    //--------------------------------------------------------------------
    bool ViewObjectContactOfUnoControl_Impl::impl_getPageView_nothrow( SdrPageView*& _out_rpPageView )
    {
        OSL_PRECOND( !impl_isDisposed_nofail(), "ViewObjectContactOfUnoControl_Impl::impl_getPageView_nothrow: already disposed!" );

        _out_rpPageView = NULL;
        if ( impl_isDisposed_nofail() )
            return false;

        ObjectContactOfPageView* pPageViewContact = dynamic_cast< ObjectContactOfPageView* >( &m_pAntiImpl->GetObjectContact() );
        if ( pPageViewContact )
            _out_rpPageView = &pPageViewContact->GetPageWindow().GetPageView();

        DBG_ASSERT( _out_rpPageView != NULL, "ViewObjectContactOfUnoControl_Impl::impl_getPageView_nothrow: this method is expected to always have success!" );
        return ( _out_rpPageView != NULL );
    }

    //--------------------------------------------------------------------
    void ViewObjectContactOfUnoControl_Impl::impl_adjustControlVisibilityToLayerVisibility_throw( bool _bForce )
    {
        OSL_PRECOND( m_aControl.is(),
            "ViewObjectContactOfUnoControl_Impl::impl_adjustControlVisibilityToLayerVisibility_throw: only valid if we have a control!" );

        SdrPageView* pPageView( NULL );
        if ( !impl_getPageView_nothrow( pPageView ) )
            return;

        SdrUnoObj* pUnoObject( NULL );
        if ( !getUnoObject( pUnoObject ) )
            return;

        SdrPageViewAccess aPVAccess( *pPageView );
        impl_adjustControlVisibilityToLayerVisibility_throw( m_aControl, *pUnoObject, aPVAccess, impl_isControlVisible_nofail(), _bForce );
    }

    //--------------------------------------------------------------------
    void ViewObjectContactOfUnoControl_Impl::impl_adjustControlVisibilityToLayerVisibility_throw( const ControlHolder& _rControl,
        const SdrUnoObj& _rUnoObject, IPageViewAccess& _rPageView, bool _bIsCurrentlyVisible, bool _bForce )
    {
        // in design mode, there is no problem with the visibility: The XControl is hidden by
        // default, and the Drawing Layer will simply not call our paint routine, if we're in
        // a hidden layer. So, only alive mode matters.
        if ( !_rControl.isDesignMode() )
        {
            // the layer of our object
            SdrLayerID nObjectLayer = _rUnoObject.GetLayer();
            // is the object we're residing in visible in this view?
            bool bIsObjectVisible = _rUnoObject.IsVisible() && _rPageView.isLayerVisible( nObjectLayer );

            if ( _bForce || ( bIsObjectVisible != _bIsCurrentlyVisible ) )
            {
                _rControl.setVisible( bIsObjectVisible );
            }
        }
    }

    //--------------------------------------------------------------------
    void ViewObjectContactOfUnoControl_Impl::impl_switchContainerListening_nothrow( bool _bStart )
    {
        OSL_PRECOND( m_xContainer.is(), "ViewObjectContactOfUnoControl_Impl::impl_switchContainerListening_nothrow: no control container!" );
        if ( !m_xContainer.is() )
            return;

        try
        {
            if ( _bStart )
                m_xContainer->addContainerListener( this );
            else
                m_xContainer->removeContainerListener( this );
        }
        catch( const Exception& )
        {
            DBG_UNHANDLED_EXCEPTION();
        }
    }

    //--------------------------------------------------------------------
    void ViewObjectContactOfUnoControl_Impl::impl_switchControlListening_nothrow( bool _bStart )
    {
        OSL_PRECOND( m_aControl.is(), "ViewObjectContactOfUnoControl_Impl::impl_switchControlListening_nothrow: invalid control!" );
        if ( !m_aControl.is() )
            return;

        try
        {
            // listen for visibility changes
            if ( _bStart )
                m_aControl.addWindowListener( this );
            else
                m_aControl.removeWindowListener( this );

            // in design mode, listen for some more aspects
            impl_switchDesignModeListening_nothrow( impl_isControlDesignMode_nothrow() && _bStart );

            // listen for design mode changes
            Reference< XModeChangeBroadcaster > xDesignModeChanges( m_aControl.getControl(), UNO_QUERY_THROW );
            if ( _bStart )
                xDesignModeChanges->addModeChangeListener( this );
            else
                xDesignModeChanges->removeModeChangeListener( this );
        }
        catch( const Exception& )
        {
            DBG_UNHANDLED_EXCEPTION();
        }
    }

    //--------------------------------------------------------------------
    void ViewObjectContactOfUnoControl_Impl::impl_switchDesignModeListening_nothrow( bool _bStart )
    {
        if ( impl_isDesignModeListening_nofail() != _bStart )
        {
            m_bIsDesignModeListening = _bStart;
            impl_switchPropertyListening_nothrow( _bStart );
        }
    }

    //------------------------------------------------------------------------------
    void ViewObjectContactOfUnoControl_Impl::impl_switchPropertyListening_nothrow( bool _bStart )
    {
        OSL_PRECOND( m_aControl.is(), "ViewObjectContactOfUnoControl_Impl::impl_switchPropertyListening_nothrow: no control!" );
        if ( !m_aControl.is() )
            return;

        try
        {
            Reference< XPropertySet > xModelProperties( m_aControl.getModel(), UNO_QUERY_THROW );
            if ( _bStart )
                xModelProperties->addPropertyChangeListener( ::rtl::OUString(), this );
            else
                xModelProperties->removePropertyChangeListener( ::rtl::OUString(), this );
        }
        catch( const Exception& )
        {
            DBG_UNHANDLED_EXCEPTION();
        }
    }

    //--------------------------------------------------------------------
    bool ViewObjectContactOfUnoControl_Impl::isPrintableControl() const
    {
        SdrUnoObj* pUnoObject( NULL );
        if ( !getUnoObject( pUnoObject ) )
            return false;

        bool bIsPrintable = false;
        try
        {
            Reference< XPropertySet > xModelProperties( pUnoObject->GetUnoControlModel(), UNO_QUERY_THROW );
            static const ::rtl::OUString s_sPrintablePropertyName( RTL_CONSTASCII_USTRINGPARAM( "Printable" ) );
            OSL_VERIFY( xModelProperties->getPropertyValue( s_sPrintablePropertyName ) >>= bIsPrintable );
        }
        catch( const Exception& )
        {
            DBG_UNHANDLED_EXCEPTION();
        }
        return bIsPrintable;
    }

    //--------------------------------------------------------------------
    void SAL_CALL ViewObjectContactOfUnoControl_Impl::disposing( const EventObject& Source ) throw(RuntimeException)
    {
        ::vos::OGuard aSolarGuard( Application::GetSolarMutex() );
            // some code below - in particular our disposal - might trigger actions which require the
            // SolarMutex. In particular, in our disposal, we remove ourself as listener from the control,
            // which alone needs the SolarMutex. Of course this - a removeFooListener needed the SolarMutex -
            // is the real bug. Toolkit really is infested with solar mutex usage ... :(
            // #i82169# / 2007-11-14 / frank.schoenheit@sun.com
        VOCGuard aGuard( *this );

        if ( !m_aControl.is() )
            return;

        if  (   ( m_aControl            == Source.Source )
            ||  ( m_aControl.getModel() == Source.Source )
            )
        {
            // the model or the control is dying ... hmm, not much sense in that we ourself continue
            // living
            impl_dispose_nothrow( false );
            return;
        }

        DBG_ASSERT( Source.Source == m_xContainer, "ViewObjectContactOfUnoControl_Impl::disposing: Who's this?" );
    }

    //--------------------------------------------------------------------
    void SAL_CALL ViewObjectContactOfUnoControl_Impl::windowResized( const WindowEvent& /*e*/ ) throw(RuntimeException)
    {
        // not interested in
    }

    //--------------------------------------------------------------------
    void SAL_CALL ViewObjectContactOfUnoControl_Impl::windowMoved( const WindowEvent& /*e*/ ) throw(RuntimeException)
    {
        // not interested in
    }

    //--------------------------------------------------------------------
    void SAL_CALL ViewObjectContactOfUnoControl_Impl::windowShown( const EventObject& /*e*/ ) throw(RuntimeException)
    {
        VOCGuard aGuard( *this );
        m_bControlIsVisible = true;
    }

    //--------------------------------------------------------------------
    void SAL_CALL ViewObjectContactOfUnoControl_Impl::windowHidden( const EventObject& /*e*/ ) throw(RuntimeException)
    {
        VOCGuard aGuard( *this );
        m_bControlIsVisible = false;
    }

    //--------------------------------------------------------------------
    void SAL_CALL ViewObjectContactOfUnoControl_Impl::propertyChange( const PropertyChangeEvent& /*_rEvent*/ ) throw(RuntimeException)
    {
        ::vos::OGuard aSolarGuard( Application::GetSolarMutex() );
            // (re)painting might require VCL operations, which need the SolarMutex

        OSL_PRECOND( !impl_isDisposed_nofail(), "ViewObjectContactOfUnoControl_Impl::propertyChange: already disposed()" );
        if ( impl_isDisposed_nofail() )
            return;

        VOCGuard aGuard( *this );
        DBG_ASSERT( m_aControl.is(), "ViewObjectContactOfUnoControl_Impl::propertyChange: " );
        if ( !m_aControl.is() )
            return;

        // a generic property changed. If we're in design mode, we need to repaint the control
        if ( impl_isControlDesignMode_nothrow() )
        {
            m_pAntiImpl->propertyChange();
        }
    }

    //--------------------------------------------------------------------
    void SAL_CALL ViewObjectContactOfUnoControl_Impl::modeChanged( const ModeChangeEvent& _rSource ) throw (RuntimeException)
    {
        VOCGuard aGuard( *this );

        DBG_ASSERT( _rSource.NewMode.equalsAscii( "design" ) || _rSource.NewMode.equalsAscii( "alive" ),
            "ViewObjectContactOfUnoControl_Impl::modeChanged: unexpected mode!" );

        m_eControlDesignMode = _rSource.NewMode.equalsAscii( "design" ) ? eDesign : eAlive;

        impl_switchDesignModeListening_nothrow( impl_isControlDesignMode_nothrow() );

        try
        {
            // if the control is part of a invisible layer, we need to explicitly hide it in alive mode
            // 2003-06-03 - #110592# - fs@openoffice.org
            impl_adjustControlVisibilityToLayerVisibility_throw( false );
        }
        catch( const Exception& )
        {
            DBG_UNHANDLED_EXCEPTION();
        }
    }

    //--------------------------------------------------------------------
    void SAL_CALL ViewObjectContactOfUnoControl_Impl::elementInserted( const ContainerEvent& /*_Event*/ ) throw (RuntimeException)
    {
        // not interested in
    }

    //--------------------------------------------------------------------
    void SAL_CALL ViewObjectContactOfUnoControl_Impl::elementRemoved( const ContainerEvent& Event ) throw (RuntimeException)
    {
        ::vos::OGuard aSolarGuard( Application::GetSolarMutex() );
            // some code below - in particular our disposal - might trigger actions which require the
            // SolarMutex. In particular, in our disposal, we remove ourself as listener from the control,
            // which alone needs the SolarMutex. Of course this - a removeFooListener needed the SolarMutex -
            // is the real bug. Toolkit really is infested with solar mutex usage ... :(
            // #i82169# / 2007-11-14 / frank.schoenheit@sun.com
        VOCGuard aGuard( *this );
        DBG_ASSERT( Event.Source == m_xContainer, "ViewObjectContactOfUnoControl_Impl::elementRemoved: where did this come from?" );

        if ( m_aControl == Event.Element )
            impl_dispose_nothrow( false );
    }

    //--------------------------------------------------------------------
    void SAL_CALL ViewObjectContactOfUnoControl_Impl::elementReplaced( const ContainerEvent& Event ) throw (RuntimeException)
    {
        VOCGuard aGuard( *this );
        DBG_ASSERT( Event.Source == m_xContainer, "ViewObjectContactOfUnoControl_Impl::elementReplaced: where did this come from?" );

        if ( ! ( m_aControl == Event.ReplacedElement ) )
            return;

        Reference< XControl > xNewControl( Event.Element, UNO_QUERY );
        DBG_ASSERT( xNewControl.is(), "ViewObjectContactOfUnoControl_Impl::elementReplaced: invalid new control!" );
        if ( !xNewControl.is() )
            return;

        ENSURE_OR_THROW( m_pOutputDeviceForWindow, "calling this without /me having an output device should be impossible." );

        DBG_ASSERT( xNewControl->getModel() == m_aControl.getModel(), "ViewObjectContactOfUnoControl_Impl::elementReplaced: another model at the new control?" );
        // another model should - in the drawing layer - also imply another SdrUnoObj, which
        // should also result in new ViewContact, and thus in new ViewObjectContacts

        impl_switchControlListening_nothrow( false );

        ControlHolder aNewControl( xNewControl );
        aNewControl.setZoom( m_aControl.getZoom() );
        aNewControl.setPosSize( m_aControl.getPosSize() );
        aNewControl.setDesignMode( impl_isControlDesignMode_nothrow() );

        m_aControl = xNewControl;
        m_bControlIsVisible = m_aControl.isVisible();

        impl_switchControlListening_nothrow( true );

        m_pAntiImpl->onControlChangedOrModified( ViewObjectContactOfUnoControl::ImplAccess() );
    }

    //--------------------------------------------------------------------
    void ViewObjectContactOfUnoControl_Impl::setControlDesignMode( bool _bDesignMode ) const
    {
        if ( ( m_eControlDesignMode != eUnknown ) && ( _bDesignMode == impl_isControlDesignMode_nothrow() ) )
            // nothing to do
            return;
        m_eControlDesignMode = _bDesignMode ? eDesign : eAlive;

        if ( !m_aControl.is() )
            // nothing to do, the setting will be respected as soon as the control
            // is created
            return;

        try
        {
            m_aControl.setDesignMode( _bDesignMode );
        }
        catch( const Exception& )
        {
            DBG_UNHANDLED_EXCEPTION();
        }
    }

    //====================================================================
    //= LazyControlCreationPrimitive2D
    //====================================================================
    //--------------------------------------------------------------------
    bool LazyControlCreationPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
    {
        if ( !BufferedDecompositionPrimitive2D::operator==( rPrimitive ) )
            return false;

        const LazyControlCreationPrimitive2D* pRHS = dynamic_cast< const LazyControlCreationPrimitive2D* >( &rPrimitive );
        if ( !pRHS )
            return false;

        if ( m_pVOCImpl != pRHS->m_pVOCImpl )
            return false;

        if ( m_aTransformation != pRHS->m_aTransformation )
            return false;

        return true;
    }

    //--------------------------------------------------------------------
    void LazyControlCreationPrimitive2D::getTransformation( const ViewContactOfUnoControl& _rVOC, ::basegfx::B2DHomMatrix& _out_Transformation )
    {
        // Do use model data directly to create the correct geometry. Do NOT
        // use getBoundRect()/getSnapRect() here; tese will use the sequence of
        // primitives themselves in the long run.
        const Rectangle aSdrGeoData( _rVOC.GetSdrUnoObj().GetGeoRect() );
        const basegfx::B2DRange aRange(
            aSdrGeoData.Left(),
            aSdrGeoData.Top(),
            aSdrGeoData.Right(),
            aSdrGeoData.Bottom()
        );

        _out_Transformation.identity();
        _out_Transformation.set( 0, 0, aRange.getWidth() );
        _out_Transformation.set( 1, 1, aRange.getHeight() );
        _out_Transformation.set( 0, 2, aRange.getMinX() );
        _out_Transformation.set( 1, 2, aRange.getMinY() );
    }

    //--------------------------------------------------------------------
    ::basegfx::B2DRange LazyControlCreationPrimitive2D::getB2DRange( const ::drawinglayer::geometry::ViewInformation2D& /*rViewInformation*/ ) const
    {
        ::basegfx::B2DRange aRange( 0.0, 0.0, 1.0, 1.0 );
        aRange.transform( m_aTransformation );
        return aRange;
    }

    //--------------------------------------------------------------------
	::drawinglayer::primitive2d::Primitive2DSequence LazyControlCreationPrimitive2D::get2DDecomposition( const ::drawinglayer::geometry::ViewInformation2D& _rViewInformation ) const
    {
    #if OSL_DEBUG_LEVEL > 1
        ::basegfx::B2DVector aScale, aTranslate;
        double fRotate, fShearX;
        _rViewInformation.getObjectToViewTransformation().decompose( aScale, aTranslate, fRotate, fShearX );
    #endif
        if ( m_pVOCImpl->hasControl() )
            impl_positionAndZoomControl( _rViewInformation );
        return BufferedDecompositionPrimitive2D::get2DDecomposition( _rViewInformation );
    }

    //--------------------------------------------------------------------
    ::drawinglayer::primitive2d::Primitive2DSequence LazyControlCreationPrimitive2D::create2DDecomposition( const ::drawinglayer::geometry::ViewInformation2D& _rViewInformation ) const
    {
    #if OSL_DEBUG_LEVEL > 1
        ::basegfx::B2DVector aScale, aTranslate;
	    double fRotate, fShearX;
	    _rViewInformation.getObjectToViewTransformation().decompose( aScale, aTranslate, fRotate, fShearX );
    #endif
        const bool bHadControl = m_pVOCImpl->getExistentControl().is();

        // force control here to make it a VCL ChildWindow. Will be fetched
        // and used below by getExistentControl()
        m_pVOCImpl->ensureControl( &_rViewInformation.getObjectToViewTransformation() );
        impl_positionAndZoomControl( _rViewInformation );

        // get needed data
        const ViewContactOfUnoControl& rViewContactOfUnoControl( m_pVOCImpl->getViewContact() );
        Reference< XControlModel > xControlModel( rViewContactOfUnoControl.GetSdrUnoObj().GetUnoControlModel() );
        const ControlHolder& rControl( m_pVOCImpl->getExistentControl() );

        if ( !bHadControl && rControl.is() && rControl.isVisible() )
            rControl.invalidate();

        if ( !bHadControl && rControl.is() && rControl.isVisible() )
            rControl.invalidate();

        // check if we already have an XControl.
        if ( !xControlModel.is() || !rControl.is() )
            // use the default mechanism. This will create a ControlPrimitive2D without
            // handing over a XControl. If not even a XControlModel exists, it will
            // create the SdrObject fallback visualisation
            return rViewContactOfUnoControl.getViewIndependentPrimitive2DSequence();

        // create a primitive and hand over the existing xControl. This will
        // allow the primitive to not need to create another one on demand.
        const drawinglayer::primitive2d::Primitive2DReference xRetval( new ::drawinglayer::primitive2d::ControlPrimitive2D(
            m_aTransformation, xControlModel, rControl.getControl() ) );

        return drawinglayer::primitive2d::Primitive2DSequence(&xRetval, 1);
    }

    //--------------------------------------------------------------------
    ImplPrimitrive2DIDBlock( LazyControlCreationPrimitive2D, PRIMITIVE2D_ID_SDRCONTROLPRIMITIVE2D )

    //====================================================================
    //= ViewObjectContactOfUnoControl
    //====================================================================
    DBG_NAME( ViewObjectContactOfUnoControl )
    //--------------------------------------------------------------------
    ViewObjectContactOfUnoControl::ViewObjectContactOfUnoControl( ObjectContact& _rObjectContact, ViewContactOfUnoControl& _rViewContact )
        :ViewObjectContactOfSdrObj( _rObjectContact, _rViewContact )
        ,m_pImpl( new ViewObjectContactOfUnoControl_Impl( this ) )
    {
        DBG_CTOR( ViewObjectContactOfUnoControl, NULL );
    }

    //--------------------------------------------------------------------
    ViewObjectContactOfUnoControl::~ViewObjectContactOfUnoControl()
    {
        m_pImpl->dispose();
        m_pImpl = NULL;

        DBG_DTOR( ViewObjectContactOfUnoControl, NULL );
    }

    //--------------------------------------------------------------------
    bool ViewObjectContactOfUnoControl::isControlVisible() const
    {
        VOCGuard aGuard( *m_pImpl );
        const ControlHolder& rControl( m_pImpl->getExistentControl() );
        return rControl.is() && rControl.isVisible();
    }

    //--------------------------------------------------------------------
    Reference< XControl > ViewObjectContactOfUnoControl::getControl()
    {
        VOCGuard aGuard( *m_pImpl );
        m_pImpl->ensureControl( NULL );
        return m_pImpl->getExistentControl().getControl();
    }

    //--------------------------------------------------------------------
    Reference< XControl > ViewObjectContactOfUnoControl::getTemporaryControlForWindow(
        const Window& _rWindow, Reference< XControlContainer >& _inout_ControlContainer, const SdrUnoObj& _rUnoObject )
    {
        ControlHolder aControl;

        InvisibleControlViewAccess aSimulatePageView( _inout_ControlContainer );
        OSL_VERIFY( ViewObjectContactOfUnoControl_Impl::createControlForDevice( aSimulatePageView, _rWindow, _rUnoObject,
            _rWindow.GetViewTransformation(), _rWindow.GetInverseViewTransformation(), aControl ) );
        return aControl.getControl();
    }

    //--------------------------------------------------------------------
    void ViewObjectContactOfUnoControl::ensureControlVisibility( bool _bVisible ) const
    {
        VOCGuard aGuard( *m_pImpl );

        try
        {
            const ControlHolder& rControl( m_pImpl->getExistentControl() );
            if ( !rControl.is() )
                return;

            // only need to care for alive mode
            if ( rControl.isDesignMode() )
                return;

            // is the visibility correct?
            if ( m_pImpl->isControlVisible() == _bVisible )
                return;

            // no -> adjust it
            rControl.setVisible( _bVisible );
            DBG_ASSERT( m_pImpl->isControlVisible() == _bVisible, "ViewObjectContactOfUnoControl::ensureControlVisibility: this didn't work!" );
                // now this would mean that either isControlVisible is not reliable,
                // or that showing/hiding the window did not work as intended.
        }
        catch( const Exception& )
        {
            DBG_UNHANDLED_EXCEPTION();
        }
    }

    //--------------------------------------------------------------------
    void ViewObjectContactOfUnoControl::setControlDesignMode( bool _bDesignMode ) const
    {
        VOCGuard aGuard( *m_pImpl );
        m_pImpl->setControlDesignMode( _bDesignMode );

        if(!_bDesignMode)
        {
            // when live mode is switched on, a refresh is needed. The edit mode visualisation
            // needs to be repainted and the now used VCL-Window needs to be positioned and
            // sized. Both is done from the repant refresh.
            const_cast< ViewObjectContactOfUnoControl* >(this)->ActionChanged();
        }
    }

    //--------------------------------------------------------------------
    drawinglayer::primitive2d::Primitive2DSequence ViewObjectContactOfUnoControl::createPrimitive2DSequence(const DisplayInfo& /*rDisplayInfo*/) const
    {
        if ( m_pImpl->isDisposed() )
            // our control already died.
            // TODO: Is it worth re-creating the control? Finally, this is a pathological situation, it means some instance
            // disposed the control though it doesn't own it. So, /me thinks we should not bother here.
            return drawinglayer::primitive2d::Primitive2DSequence();

        if ( GetObjectContact().getViewInformation2D().getViewTransformation().isIdentity() )
            // remove this when #i115754# is fixed
            return drawinglayer::primitive2d::Primitive2DSequence();

        // ignore existing controls which are in alive mode and manually switched to "invisible"
        // #102090# / 2009-06-05 / frank.schoenheit@sun.com
        const ControlHolder& rControl( m_pImpl->getExistentControl() );
        if ( rControl.is() && !rControl.isDesignMode() && !rControl.isVisible() )
            return drawinglayer::primitive2d::Primitive2DSequence();

        ::drawinglayer::primitive2d::Primitive2DReference xPrimitive( new LazyControlCreationPrimitive2D( m_pImpl ) );
        return ::drawinglayer::primitive2d::Primitive2DSequence( &xPrimitive, 1 );
    }

    //--------------------------------------------------------------------
	bool ViewObjectContactOfUnoControl::isPrimitiveVisible( const DisplayInfo& _rDisplayInfo ) const
	{
        VOCGuard aGuard( *m_pImpl );

        if ( m_pImpl->hasControl() )
        {
            const ::drawinglayer::geometry::ViewInformation2D& rViewInformation( GetObjectContact().getViewInformation2D() );
        #if OSL_DEBUG_LEVEL > 1
            ::basegfx::B2DVector aScale, aTranslate;
            double fRotate, fShearX;
            rViewInformation.getObjectToViewTransformation().decompose( aScale, aTranslate, fRotate, fShearX );
        #endif

            if ( !rViewInformation.getViewport().isEmpty() )
                m_pImpl->positionAndZoomControl( rViewInformation.getObjectToViewTransformation() );
        }

        return ViewObjectContactOfSdrObj::isPrimitiveVisible( _rDisplayInfo );
	}

    //--------------------------------------------------------------------
    void ViewObjectContactOfUnoControl::propertyChange()
    {
        impl_onControlChangedOrModified();
    }

    //--------------------------------------------------------------------
    void ViewObjectContactOfUnoControl::ActionChanged()
    {
        // call parent
        ViewObjectContactOfSdrObj::ActionChanged();
        const ControlHolder& rControl(m_pImpl->getExistentControl());

        if(rControl.is() && !rControl.isDesignMode())
        {
            // #i93180# if layer visibility has changed and control is in live mode, it is necessary
            // to correct visibility to make those control vanish on SdrObject LayerID changes
            const SdrPageView* pSdrPageView = GetObjectContact().TryToGetSdrPageView();

            if(pSdrPageView)
            {
				const SdrObject& rObject = getSdrObject();
                const bool bIsLayerVisible( rObject.IsVisible() && pSdrPageView->GetVisibleLayers().IsSet(rObject.GetLayer()));

                if(rControl.isVisible() != bIsLayerVisible)
                {
                    rControl.setVisible(bIsLayerVisible);
                }
            }
        }
    }

    //--------------------------------------------------------------------
    void ViewObjectContactOfUnoControl::impl_onControlChangedOrModified()
    {
        // graphical invalidate at all views
        ActionChanged();

        // #i93318# flush Primitive2DSequence to force recreation with updated XControlModel
        // since e.g. background color has changed and existing decompositions are possibly no
        // longer valid. Unfortunately this is not detected from ControlPrimitive2D::operator==
        // since it only has a uno reference to the XControlModel
        flushPrimitive2DSequence();
    }

    //====================================================================
    //= UnoControlPrintOrPreviewContact
    //====================================================================
    DBG_NAME( UnoControlPrintOrPreviewContact )
    //--------------------------------------------------------------------
    UnoControlPrintOrPreviewContact::UnoControlPrintOrPreviewContact( ObjectContactOfPageView& _rObjectContact, ViewContactOfUnoControl& _rViewContact )
        :ViewObjectContactOfUnoControl( _rObjectContact, _rViewContact )
    {
        DBG_CTOR( UnoControlPrintOrPreviewContact, NULL );
    }

    //--------------------------------------------------------------------
    UnoControlPrintOrPreviewContact::~UnoControlPrintOrPreviewContact()
    {
        DBG_DTOR( UnoControlPrintOrPreviewContact, NULL );
    }

    //--------------------------------------------------------------------
    drawinglayer::primitive2d::Primitive2DSequence UnoControlPrintOrPreviewContact::createPrimitive2DSequence(const DisplayInfo& rDisplayInfo ) const
    {
        if ( !m_pImpl->isPrintableControl() )
            return drawinglayer::primitive2d::Primitive2DSequence();
        return ViewObjectContactOfUnoControl::createPrimitive2DSequence( rDisplayInfo );
    }

//........................................................................
} } // namespace sdr::contact
//........................................................................