tdf#118769 parent of modal dialog not set

Change-Id: Ie3b1a626eb0ca4f39e015a18fede935b36ed194e
Reviewed-on: https://gerrit.libreoffice.org/57492
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

sd/source/ui/func/fuscale.cxx

@@ -108,7 +108,7 @@ void FuScale::DoExecute( SfxRequest& rReq )
         aNewAttr.Put( *pZoomItem );
 
         SvxAbstractDialogFactory* pFact = SvxAbstractDialogFactory::Create();
-        ScopedVclPtr<AbstractSvxZoomDialog> pDlg( pFact->CreateSvxZoomDialog(nullptr, aNewAttr) );
+        ScopedVclPtr<AbstractSvxZoomDialog> pDlg(pFact->CreateSvxZoomDialog(rReq.GetFrameWeld(), aNewAttr));
         pDlg->SetLimits( static_cast<sal_uInt16>(mpWindow->GetMinZoom()), static_cast<sal_uInt16>(mpWindow->GetMaxZoom()) );
         sal_uInt16 nResult = pDlg->Execute();
         switch( nResult )