From 055316b2daca2226068e8b2bbb36e1f5ebdc425a Mon Sep 17 00:00:00 2001
From: nyamatongwe <nyamatongwe@gmail.com>
Date: Sat, 13 Oct 2012 22:26:55 +1100
Subject: Limit horizontal scroll value so that it does not go negative when
 swiping touchpad with a small scroll width.

---
 cocoa/ScintillaCocoa.mm | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/cocoa/ScintillaCocoa.mm b/cocoa/ScintillaCocoa.mm
index fb584b9c5..64981d9d6 100644
--- a/cocoa/ScintillaCocoa.mm
+++ b/cocoa/ScintillaCocoa.mm
@@ -1536,6 +1536,8 @@ void ScintillaCocoa::SetHorizontalScrollPos()
   // Convert absolute coordinate into the range [0..1]. Keep in mind that the visible area
   // does *not* belong to the scroll range.
   int maxXOffset = scrollWidth - textRect.Width();
+  if (maxXOffset < 0)
+    maxXOffset = 0;
   if (xOffset > maxXOffset)
     xOffset = maxXOffset;
   float relativePosition = (float) xOffset / maxXOffset;
-- 
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