From 6c47b1583456588a909180217a6cc343f1e27dfd Mon Sep 17 00:00:00 2001
From: YuSanka <yusanka@gmail.com>
Date: Tue, 18 May 2021 12:32:37 +0200
Subject: [PATCH] Follow-up of a5d5ceb30dfa0233c847c001c49a439057e3ffed - Fixed
 run on Windows

---
 src/slic3r/GUI/DoubleSlider.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/slic3r/GUI/DoubleSlider.cpp b/src/slic3r/GUI/DoubleSlider.cpp
index 0c30b0cb4..6d41e3c82 100644
--- a/src/slic3r/GUI/DoubleSlider.cpp
+++ b/src/slic3r/GUI/DoubleSlider.cpp
@@ -1084,6 +1084,8 @@ void Control::Ruler::update(wxWindow* win, const std::vector<double>& values, do
 
 void Control::draw_ruler(wxDC& dc)
 {
+    if (m_values.empty())
+        return;
     m_ruler.update(this->GetParent(), m_values, get_scroll_step());
 
     int height, width;