Add `._last_bar_lines` guard to `.paint()`

2022-05-21 11:45:44 -04:00 · 2022-05-21 11:45:44 -04:00 · b985b48eb3
parent c256d3bdc0
commit b985b48eb3
1 changed files with 3 additions and 2 deletions
--- a/piker/ui/_ohlc.py
+++ b/piker/ui/_ohlc.py
@ -274,6 +274,7 @@ class BarItems(pg.GraphicsObject):
        # lead to any perf gains other then when zoomed in to less bars
        # in view.
        p.setPen(self.last_bar_pen)
+        if self._last_bar_lines:
            p.drawLines(*tuple(filter(bool, self._last_bar_lines)))
            profiler('draw last bar')