From 1b144e80bdb66c96d2d5f6e6fc2ff3b2af5348fd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Luk=C3=A1=C5=A1=20Hejl?= <hejl.lukas@gmail.com>
Date: Wed, 21 Apr 2021 07:18:02 +0200
Subject: [PATCH] Added hiding of MMU segmentation gizmo when it is selected
 printer with only one extruder.

---
 src/slic3r/GUI/Gizmos/GLGizmoMmuSegmentation.cpp | 7 ++++++-
 src/slic3r/GUI/Gizmos/GLGizmoMmuSegmentation.hpp | 2 ++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/slic3r/GUI/Gizmos/GLGizmoMmuSegmentation.cpp b/src/slic3r/GUI/Gizmos/GLGizmoMmuSegmentation.cpp
index e26b0341d..6b23e7623 100644
--- a/src/slic3r/GUI/Gizmos/GLGizmoMmuSegmentation.cpp
+++ b/src/slic3r/GUI/Gizmos/GLGizmoMmuSegmentation.cpp
@@ -7,6 +7,7 @@
 #include "slic3r/GUI/GUI_App.hpp"
 #include "slic3r/GUI/ImGuiWrapper.hpp"
 #include "slic3r/GUI/Plater.hpp"
+#include "libslic3r/PresetBundle.hpp"
 
 
 #include <GL/glew.h>
@@ -32,7 +33,11 @@ std::string GLGizmoMmuSegmentation::on_get_name() const
     return (_L("MMU painting") + " [N]").ToUTF8().data();
 }
 
-
+bool GLGizmoMmuSegmentation::on_is_selectable() const
+{
+    return (wxGetApp().preset_bundle->printers.get_edited_preset().printer_technology() == ptFFF
+            && wxGetApp().get_mode() != comSimple && wxGetApp().extruders_cnt() > 1);
+}
 
 bool GLGizmoMmuSegmentation::on_init()
 {
diff --git a/src/slic3r/GUI/Gizmos/GLGizmoMmuSegmentation.hpp b/src/slic3r/GUI/Gizmos/GLGizmoMmuSegmentation.hpp
index 9511b56a4..2833a35eb 100644
--- a/src/slic3r/GUI/Gizmos/GLGizmoMmuSegmentation.hpp
+++ b/src/slic3r/GUI/Gizmos/GLGizmoMmuSegmentation.hpp
@@ -19,6 +19,8 @@ protected:
     void on_render_input_window(float x, float y, float bottom_limit) override;
     std::string on_get_name() const override;
 
+    bool on_is_selectable() const override;
+
 private:
     bool on_init() override;