scanwidget: protect against resize from zero

fix #839
2017-10-11 22:25:14 +02:00 · 2017-10-11 22:25:14 +02:00 · cd0d73a1a2
parent a6cd42c4aa
commit cd0d73a1a2
1 changed files with 1 additions and 1 deletions
--- a/artiq/gui/scanwidget.py
+++ b/artiq/gui/scanwidget.py
@ -223,7 +223,7 @@ class ScanWidget(QtWidgets.QWidget):
            self._zoom(self.zoomFactor**y, ev.x())

    def resizeEvent(self, ev):
-        if not ev.oldSize().isValid():
+        if not ev.oldSize().isValid() or not ev.oldSize().width():
            self.viewRange()
            return
        self.ticker.min_ticks = max(