From 81cebe5be3903e3cdcaa75f689dbdffaf7891b21 Mon Sep 17 00:00:00 2001
From: enricoturri1966 <enricoturri@seznam.cz>
Date: Mon, 3 Apr 2023 10:48:59 +0200
Subject: [PATCH] SPE-1629 - Fixed crash at startup when any of the svg files
 used as icon into imgui dialog is renamed/removed.

---
 src/slic3r/GUI/ImGuiWrapper.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/slic3r/GUI/ImGuiWrapper.cpp b/src/slic3r/GUI/ImGuiWrapper.cpp
index 55bf576028..73a4cc439e 100644
--- a/src/slic3r/GUI/ImGuiWrapper.cpp
+++ b/src/slic3r/GUI/ImGuiWrapper.cpp
@@ -1700,6 +1700,10 @@ void ImGuiWrapper::init_font(bool compress)
             assert(rect->Width == icon_sz);
             assert(rect->Height == icon_sz);
             std::vector<unsigned char> raw_data = load_svg(icon.second, icon_sz, icon_sz);
+            if (raw_data.empty()) {
+                rect_id++;
+                continue;
+            }
             const ImU32* pIn = (ImU32*)raw_data.data();
             for (int y = 0; y < icon_sz; y++) {
                 ImU32* pOut = (ImU32*)pixels + (rect->Y + y) * width + (rect->X);