fdo#63878 fix the zoom problem when the sheet are RTL

Change-Id: Ie451b7a84b5481e9209c5b6d6d439844de5082fd
Reviewed-on: https://gerrit.libreoffice.org/3789Reviewed-by: Eike Rathke <erack@redhat.com>
Tested-by: Eike Rathke <erack@redhat.com>
(cherry picked from commit 5bff7f52)
Signed-off-by: Eike Rathke <erack@redhat.com>

sc/source/ui/view/drawview.cxx

@@ -791,6 +791,9 @@ void ScDrawView::SyncForGrid( SdrObject* pObj )
         Point aCurPos =  pViewData->GetScrPos(  aOldStt.Col(), aOldStt.Row(), eWhich, sal_True );
         Point aCurPosHmm = pGridWin->PixelToLogic(aCurPos, aDrawMode );
         Point aGridOff = ( aCurPosHmm - aOldPos );
+        // fdo#63878 Fix the X position for RTL Sheet
+        if( aGridOff.getX() < 0 )
+            aGridOff.setX( aCurPosHmm.getX() + aOldPos.getX() );
         pObj->SetGridOffset( aGridOff );
     }
 }