afl-eventtesting: deref of null GetSdrPageView

Change-Id: Iec3266746c78e58e3c3a094e6511d79dadc4e4c6
(cherry picked from commit 27ccddf5)
Reviewed-on: https://gerrit.libreoffice.org/19465Reviewed-by: Eike Rathke <erack@redhat.com>
Tested-by: Eike Rathke <erack@redhat.com>
(cherry picked from commit 253b3f72)

svx/source/sidebar/possize/PosSizePropertyPanel.cxx

@@ -1181,12 +1181,15 @@ void PosSizePropertyPanel::DisableControls()
 
 void PosSizePropertyPanel::SetPosXYMinMax()
 {
+    SdrPageView* pPV = mpView->GetSdrPageView();
+    if (!pPV)
+        return;
     Rectangle aTmpRect(mpView->GetAllMarkedRect());
-    mpView->GetSdrPageView()->LogicToPagePos(aTmpRect);
+    pPV->LogicToPagePos(aTmpRect);
     maRect = basegfx::B2DRange(aTmpRect.Left(), aTmpRect.Top(), aTmpRect.Right(), aTmpRect.Bottom());
 
     Rectangle aTmpRect2(mpView->GetWorkArea());
-    mpView->GetSdrPageView()->LogicToPagePos(aTmpRect2);
+    pPV->LogicToPagePos(aTmpRect2);
     maWorkArea = basegfx::B2DRange(aTmpRect2.Left(), aTmpRect2.Top(), aTmpRect2.Right(), aTmpRect2.Bottom());
 
     const Fraction aUIScale(mpView->GetModel()->GetUIScale());