From 99c30ea1ab7be264096fa76ccb96f43c7f98aeb1 Mon Sep 17 00:00:00 2001
From: szeli1 <143485814+szeli1@users.noreply.github.com>
Date: Thu, 25 Jul 2024 01:00:28 +0200
Subject: [PATCH] Fixed alt + left or right causing a crash in PianoRoll
 (#7390)

---
 src/tracks/MidiClip.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/tracks/MidiClip.cpp b/src/tracks/MidiClip.cpp
index d6e64ff7e..409fb60ae 100644
--- a/src/tracks/MidiClip.cpp
+++ b/src/tracks/MidiClip.cpp
@@ -473,8 +473,9 @@ MidiClip *  MidiClip::nextMidiClip() const
 MidiClip * MidiClip::adjacentMidiClipByOffset(int offset) const
 {
 	auto& clips = m_instrumentTrack->getClips();
-	int clipNum = m_instrumentTrack->getClipNum(this);
-	return dynamic_cast<MidiClip*>(clips[clipNum + offset]);
+	int clipNum = m_instrumentTrack->getClipNum(this) + offset;
+	if (clipNum < 0 || static_cast<size_t>(clipNum) >= clips.size()) { return nullptr; }
+	return dynamic_cast<MidiClip*>(clips[clipNum]);
 }