From 2d7359851f925c41c3dc2dc21c10d15efa73e533 Mon Sep 17 00:00:00 2001
From: Tyler Goodlet <jgbt@protonmail.com>
Date: Thu, 9 Feb 2023 09:21:30 -0500
Subject: [PATCH] Go back to no-cache on OHLC downsample line

---
 piker/ui/_curve.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/piker/ui/_curve.py b/piker/ui/_curve.py
index 358d4844..1e3c4e75 100644
--- a/piker/ui/_curve.py
+++ b/piker/ui/_curve.py
@@ -407,6 +407,11 @@ class Curve(FlowGraphic):
 # (via it's max / min) even when highly zoomed out.
 class FlattenedOHLC(Curve):
 
+    # avoids strange dragging/smearing artifacts when panning
+    # as well as mouse over artefacts when the vlm chart series
+    # is "shorter" then some overlay..
+    cache_mode: int = QGraphicsItem.NoCache
+
     def draw_last_datum(
         self,
         path: QPainterPath,