From 55f8dabe127f5b9677e3e718f867dca5440b80c7 Mon Sep 17 00:00:00 2001
From: Bertrand Songis <bsongis@gmail.com>
Date: Mon, 9 Mar 2020 17:06:36 +0100
Subject: [PATCH] An annulus sector with equal start and end angles is drawn as
 a line

---
 radio/src/thirdparty/libopenui/src/bitmapbuffer.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/radio/src/thirdparty/libopenui/src/bitmapbuffer.cpp b/radio/src/thirdparty/libopenui/src/bitmapbuffer.cpp
index 20e42c70c..ab9b8bb46 100755
--- a/radio/src/thirdparty/libopenui/src/bitmapbuffer.cpp
+++ b/radio/src/thirdparty/libopenui/src/bitmapbuffer.cpp
@@ -344,6 +344,10 @@ class Slope {
 
 void BitmapBuffer::drawAnnulusSector(coord_t x, coord_t y, coord_t internalRadius, coord_t externalRadius, int startAngle, int endAngle, LcdFlags flags)
 {
+  if (endAngle == startAngle) {
+    endAngle += 1;
+  }
+
   Slope startSlope(startAngle);
   Slope endSlope(endAngle);