From 2026a1b454dc8642e7106efe5bc8d782d7f34d91 Mon Sep 17 00:00:00 2001
From: Dean Lee <deanlee3@gmail.com>
Date: Wed, 1 Mar 2023 15:41:28 +0800
Subject: [PATCH] cabana: recalc y-axis label width after unit change (#27466)

recalc width
old-commit-hash: 85a37d276c105494b97eee03aa6bb31a212f2f92
---
 tools/cabana/chartswidget.cc | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/tools/cabana/chartswidget.cc b/tools/cabana/chartswidget.cc
index 42f8e4e06a..2c27fbd8b9 100644
--- a/tools/cabana/chartswidget.cc
+++ b/tools/cabana/chartswidget.cc
@@ -591,11 +591,14 @@ void ChartView::updateAxisY() {
       if (it->y() > max) max = it->y();
     }
   }
-  axis_y->setTitleText(unit);
-
   if (min == std::numeric_limits<double>::max()) min = 0;
   if (max == std::numeric_limits<double>::lowest()) max = 0;
 
+  if (axis_y->titleText() != unit) {
+    axis_y->setTitleText(unit);
+    y_label_width = 0;// recalc width
+  }
+
   double delta = std::abs(max - min) < 1e-3 ? 1 : (max - min) * 0.05;
   auto [min_y, max_y, tick_count] = getNiceAxisNumbers(min - delta, max + delta, axis_y->tickCount());
   if (min_y != axis_y->min() || max_y != axis_y->max() || y_label_width == 0) {