From 5ab35a38d547d9f8b24ab3a6335e58a527577872 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Ekl=C3=B6f?= <daniel@ekloef.se>
Date: Sat, 30 Nov 2019 23:14:26 +0100
Subject: [PATCH] font: fix estimated underline thickness; descent is typically
 negative

---
 font.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/font.c b/font.c
index 743ff68..53616a7 100644
--- a/font.c
+++ b/font.c
@@ -122,7 +122,7 @@ underline_strikeout_metrics(struct font *font)
 
     if (font->underline.position == 0.) {
         font->underline.position = descent / 2.;
-        font->underline.thickness = descent / 5.;
+        font->underline.thickness = fabs(descent / 5.);
     }
 
     LOG_DBG("underline: pos=%f, thick=%f",