From 17b18256ac05a1a44310bedc8c3490b85e52ef61 Mon Sep 17 00:00:00 2001
From: supermerill <merill@free.fr>
Date: Wed, 20 Dec 2023 17:31:25 +0100
Subject: [PATCH] Don't crash if there is some empty lines in the ui layout.

---
 src/slic3r/GUI/OG_CustomCtrl.cpp | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/slic3r/GUI/OG_CustomCtrl.cpp b/src/slic3r/GUI/OG_CustomCtrl.cpp
index 553e741765d..c4fb6e0988b 100644
--- a/src/slic3r/GUI/OG_CustomCtrl.cpp
+++ b/src/slic3r/GUI/OG_CustomCtrl.cpp
@@ -582,7 +582,9 @@ void OG_CustomCtrl::CtrlLine::update_visibility(ConfigOptionMode mode)
 {
     if (og_line.is_separator())
         return;
-    const std::vector<Option>& option_set = og_line.get_options();
+    const std::vector<Option> &option_set = og_line.get_options();
+    if (option_set.empty())
+        return;
 
     ConfigOptionMode line_mode = option_set.front().opt.mode;
     for (const Option& opt : option_set)
@@ -639,6 +641,9 @@ void OG_CustomCtrl::CtrlLine::render(wxDC& dc, wxCoord v_pos)
         render_separator(dc, v_pos);
         return;
     }
+    if (og_line.get_options().empty())
+        return;
+
     rects_tooltip.clear(); // reset the tooltip detection area, they are re-created by draw_text
 
     Field* front_field = og_line.get_options().empty() ? nullptr : ctrl->opt_group->get_field(og_line.get_options().front().opt_id);
@@ -781,7 +786,7 @@ void OG_CustomCtrl::CtrlLine::render(wxDC& dc, wxCoord v_pos)
 
 wxCoord OG_CustomCtrl::CtrlLine::draw_mode_bmp(wxDC& dc, wxCoord v_pos)
 {
-    if (!m_has_icon)
+    if (!m_has_icon || og_line.is_separator() || og_line.get_options().empty())
         return 0;
     if (!draw_mode_bitmap)
         return ctrl->m_h_gap;