From 6e36a897d0ae139e9dfcf7549797a7b9b89238e3 Mon Sep 17 00:00:00 2001
From: Thomas Goyne <plorkyeran@aegisub.org>
Date: Tue, 27 Mar 2012 23:15:20 +0000
Subject: [PATCH] Don't allow dragging audio markers to negative times

As ASS doesn't support negative times, some of the other code assumes
that times are >= 0, and it's never actually useful to have a negative
start time.

Originally committed to SVN as r6623.
---
 aegisub/src/audio_timing_dialogue.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/aegisub/src/audio_timing_dialogue.cpp b/aegisub/src/audio_timing_dialogue.cpp
index 5ee64b02d..aea983a18 100644
--- a/aegisub/src/audio_timing_dialogue.cpp
+++ b/aegisub/src/audio_timing_dialogue.cpp
@@ -815,6 +815,9 @@ std::vector<AudioMarker*> AudioTimingControllerDialogue::GetRightMarkers()
 
 int AudioTimingControllerDialogue::SnapPosition(int position, int snap_range, std::vector<AudioMarker*> const& exclude) const
 {
+	if (position < 0)
+		position = 0;
+
 	if (snap_range <= 0)
 		return position;