From 7a5eff56b0498f478eb2120445bcf892cb809f41 Mon Sep 17 00:00:00 2001
From: Pavel Sanda <sanda@lyx.org>
Date: Wed, 7 Oct 2015 02:15:35 -0700
Subject: [PATCH] Set minimal width of fixedwidth collapsable insets.

Intention behind this is actually Box inset being too tiny
to reasonably contain other insets like ERT.

http://www.mail-archive.com/lyx-devel@lists.lyx.org/msg188987.html
---
 src/insets/InsetCollapsable.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/insets/InsetCollapsable.cpp b/src/insets/InsetCollapsable.cpp
index 623cebbc77..d656d7a29e 100644
--- a/src/insets/InsetCollapsable.cpp
+++ b/src/insets/InsetCollapsable.cpp
@@ -213,6 +213,11 @@ void InsetCollapsable::metrics(MetricsInfo & mi, Dimension & dim) const
 	case TopButton:
 	case LeftButton:
 	case ButtonOnly:
+		if (hasFixedWidth()){
+			const int mindim=button_dim.x2-button_dim.x1;
+			if (mi.base.textwidth<mindim)
+				mi.base.textwidth=mindim;
+		}
 		dim = dimensionCollapsed(bv);
 		if (geometry(bv) == TopButton 
 			  || geometry(bv) == LeftButton) {
-- 
2.39.2