Add guard for "last step" rect

2022-01-13 16:05:05 -05:00 · 2022-01-13 16:05:05 -05:00 · 16dfc75ad0
parent 50713030f8
commit 16dfc75ad0
1 changed files with 4 additions and 2 deletions
--- a/piker/ui/_curve.py
+++ b/piker/ui/_curve.py
@ -328,8 +328,10 @@ class FastAppendCurve(pg.PlotCurveItem):
        profiler = pg.debug.Profiler(disabled=not pg_profile_enabled())
        # p.setRenderHint(p.Antialiasing, True)

-        if self._step_mode:
-
+        if (
+            self._step_mode
+            and self._last_step_rect
+        ):
            brush = self.opts['brush']
            # p.drawLines(*tuple(filter(bool, self._last_step_lines)))
            # p.drawRect(self._last_step_rect)