From f86cb30e47f07356286829544b7c2a136cc08057 Mon Sep 17 00:00:00 2001
From: Aergwyn <aergwyn@t-online.de>
Date: Wed, 17 Jan 2018 20:35:28 +0100
Subject: [PATCH] prevent negative width on progress bar

---
 osu.Game/Overlays/BeatmapSet/PreviewButton.cs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/osu.Game/Overlays/BeatmapSet/PreviewButton.cs b/osu.Game/Overlays/BeatmapSet/PreviewButton.cs
index 11d1769f1e..87cd6f7af6 100644
--- a/osu.Game/Overlays/BeatmapSet/PreviewButton.cs
+++ b/osu.Game/Overlays/BeatmapSet/PreviewButton.cs
@@ -15,6 +15,7 @@ using OpenTK;
 using OpenTK.Graphics;
 using osu.Game.Overlays.Direct;
 using osu.Framework.Configuration;
+using System;
 
 namespace osu.Game.Overlays.BeatmapSet
 {
@@ -82,7 +83,8 @@ namespace osu.Game.Overlays.BeatmapSet
 
             if (Playing.Value && preview != null)
             {
-                progress.Width = (float)(preview.CurrentTime / preview.Length);
+                // prevent negative (potential infinite) width if a track without length was loaded
+                progress.Width = (float)Math.Max(preview.CurrentTime / preview.Length, 0);
             }
         }