From 72d85261fba98303c508d93eab177f45f1e020e5 Mon Sep 17 00:00:00 2001
From: bubnikv <bubnikv@gmail.com>
Date: Wed, 6 Feb 2019 08:44:06 +0100
Subject: [PATCH] Fix of mouse wheel scrolling over the variable layer height
 bar with OSX Retina rendering.

---
 src/slic3r/GUI/GLCanvas3D.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/slic3r/GUI/GLCanvas3D.cpp b/src/slic3r/GUI/GLCanvas3D.cpp
index 4473e4d75..6a089a4b1 100644
--- a/src/slic3r/GUI/GLCanvas3D.cpp
+++ b/src/slic3r/GUI/GLCanvas3D.cpp
@@ -5231,6 +5231,12 @@ void GLCanvas3D::on_mouse_wheel(wxMouseEvent& evt)
     if (evt.MiddleIsDown())
         return;
 
+#if ENABLE_RETINA_GL
+    const float scale = m_retina_helper->get_scale_factor();
+    evt.SetX(evt.GetX() * scale);
+    evt.SetY(evt.GetY() * scale);
+#endif
+
     // Performs layers editing updates, if enabled
     if (is_layers_editing_enabled())
     {