From: Jean-Marc Lasgouttes <lasgouttes@lyx.org>
Date: Fri, 4 Nov 2016 10:35:22 +0000 (+0100)
Subject: Clear background behind sublables when necessary.
X-Git-Tag: 2.3.0alpha1~769
X-Git-Url: https://git.lyx.org/gitweb/?a=commitdiff_plain;h=d207e85cfda2893de4e6c7f419c58aa342395f47;p=features.git

Clear background behind sublables when necessary.

This is analogous to what has been done to address #4889 and #10359.

Fixes bug #10475.
---

diff --git a/src/insets/InsetCollapsable.cpp b/src/insets/InsetCollapsable.cpp
index 668a91896a..250b25cbc0 100644
--- a/src/insets/InsetCollapsable.cpp
+++ b/src/insets/InsetCollapsable.cpp
@@ -333,10 +333,11 @@ void InsetCollapsable::draw(PainterInfo & pi, int x, int y) const
 			int w = 0;
 			int a = 0;
 			int d = 0;
+			Color const col = pi.full_repaint ? Color_none : pi.backgroundColor(this);
 			theFontMetrics(font).rectText(buttonLabel(bv), w, a, d);
 			int const ww = max(textdim.wid, w);
 			pi.pain.rectText(x + (ww - w) / 2, y + desc + a,
-				buttonLabel(bv), font, Color_none, Color_none);
+			                 buttonLabel(bv), font, col, Color_none);
 		}
 
 		int const y1 = y - textdim.asc + 3;