From 89ff5d03ebef37bdedda02b61a634a69fe72c02a Mon Sep 17 00:00:00 2001
From: Yuri D'Elia <wavexx@thregr.org>
Date: Sat, 18 May 2019 14:52:29 +0200
Subject: [PATCH] Delay refresh until initialized

on_idle can be called too early on wxGtk3/X11.
Check for m_initialized before refreshing.
---
 src/slic3r/GUI/GLCanvas3D.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/slic3r/GUI/GLCanvas3D.cpp b/src/slic3r/GUI/GLCanvas3D.cpp
index bb2cb5e2d..48dc2e46e 100644
--- a/src/slic3r/GUI/GLCanvas3D.cpp
+++ b/src/slic3r/GUI/GLCanvas3D.cpp
@@ -2292,6 +2292,9 @@ void GLCanvas3D::on_size(wxSizeEvent& evt)
 
 void GLCanvas3D::on_idle(wxIdleEvent& evt)
 {
+    if (!m_initialized)
+        return;
+
     m_dirty |= m_toolbar.update_items_state();
     m_dirty |= m_view_toolbar.update_items_state();