From 213300d799d0eff2c99b23b2da0cbeaaf24d2fcf Mon Sep 17 00:00:00 2001
From: Vadim Slyusarev <nb_grif@mail.ru>
Date: Fri, 12 Jul 2019 15:22:24 +0100
Subject: [PATCH] #75: Fixing a crash in GUI related to 0-width frames

---
 gui/Data/FrameCollection.cs | 3 ++-
 gui/ThreadView/ThreadRow.cs | 4 +++-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/gui/Data/FrameCollection.cs b/gui/Data/FrameCollection.cs
index 60a8fca8..5149b7e5 100644
--- a/gui/Data/FrameCollection.cs
+++ b/gui/Data/FrameCollection.cs
@@ -525,7 +525,8 @@ public void Add(DataResponse response)
 
 						if (group.Board.MainThreadIndex == frame.Header.ThreadIndex)
 						{
-							Add(frame);
+							if (frame.Header.Duration > 0.0)
+								Add(frame);
 						}
 
 						break;
diff --git a/gui/ThreadView/ThreadRow.cs b/gui/ThreadView/ThreadRow.cs
index 98cc3f52..f15f5339 100644
--- a/gui/ThreadView/ThreadRow.cs
+++ b/gui/ThreadView/ThreadRow.cs
@@ -64,7 +64,9 @@ public class ThreadScroll
 
 		public Durable ViewTime { get { return UnitToTime(ViewUnit); } }
 
-		public double Zoom { get { return 1.0 / ViewUnit.Width; } }
+
+		const double MIN_WIDTH = 0.000001;
+		public double Zoom { get { return 1.0 / Math.Max(MIN_WIDTH, ViewUnit.Width); } }
 
 		public double TimeToUnit(ITick tick)
 		{