Fix reference to none object

bzr-revno: 1292 Fixes: https://launchpad.net/bugs/716843
2011-02-11 18:14:02 +00:00 · 2011-02-11 18:14:02 +00:00 · f1fe86250a
commit f1fe86250a
parent 186eec0eb3 4a4f7d7ef4
1 changed files with 1 additions and 1 deletions
--- a/openlp/core/ui/slidecontroller.py
+++ b/openlp/core/ui/slidecontroller.py
@ -876,7 +876,7 @@ class SlideController(QtGui.QWidget):
        using *Blank to Theme*.
        """
        log.debug(u'updatePreview %s ' % self.screens.current[u'primary'])
-        if not self.screens.current[u'primary'] and \
+        if not self.screens.current[u'primary'] and self.serviceItem and \
            self.serviceItem.is_capable(ItemCapabilities.ProvidesOwnDisplay):
            # Grab now, but try again in a couple of seconds if slide change
            # is slow