From f6b0ccf99c1f2e3eb836883dc574e861ca84194f Mon Sep 17 00:00:00 2001
From: Jean-Marc Lasgouttes <lasgouttes@lyx.org>
Date: Mon, 12 Jun 2017 15:14:23 +0200
Subject: [PATCH] Use proper markers for display version of the math macro
 template.

This avoids ghost white corners when the macro does not have a display
version.

Part of bug #8883.
---
 src/mathed/MathMacroTemplate.cpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/mathed/MathMacroTemplate.cpp b/src/mathed/MathMacroTemplate.cpp
index d4cf4cfa56..e12856a15f 100644
--- a/src/mathed/MathMacroTemplate.cpp
+++ b/src/mathed/MathMacroTemplate.cpp
@@ -189,6 +189,8 @@ public:
 	DisplayLabelBox(Buffer * buf, MathAtom const & atom, docstring label,
 			MathMacroTemplate const & parent);
 
+	///
+	marker_type marker(BufferView const *) const;
 	///
 	void metrics(MetricsInfo & mi, Dimension & dim) const;
 	///
@@ -215,6 +217,16 @@ Inset * DisplayLabelBox::clone() const
 }
 
 
+InsetMath::marker_type DisplayLabelBox::marker(BufferView const * bv) const
+{
+	if (parent_.editing(bv)
+	    || !parent_.cell(parent_.displayIdx()).empty())
+		return MARKER;
+	else
+		return NO_MARKER;
+}
+
+
 void DisplayLabelBox::metrics(MetricsInfo & mi, Dimension & dim) const
 {
 	InsetLabelBox::metrics(mi, dim);
-- 
2.39.2