From 54fff4ff230cbfcf855f616efdc8cde67488a49b Mon Sep 17 00:00:00 2001
From: merrickclay <55554300+merrickclay@users.noreply.github.com>
Date: Thu, 6 Jan 2022 15:37:08 -0700
Subject: [PATCH] Added check for empty notes vector in shiftPos (#6252)

---
 src/gui/editors/PianoRoll.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/gui/editors/PianoRoll.cpp b/src/gui/editors/PianoRoll.cpp
index f1b39e9da..20926977b 100644
--- a/src/gui/editors/PianoRoll.cpp
+++ b/src/gui/editors/PianoRoll.cpp
@@ -1222,6 +1222,11 @@ void PianoRoll::shiftPos(int amount) //Shift notes pos by amount
 void PianoRoll::shiftPos(NoteVector notes, int amount)
 {
 	m_pattern->addJournalCheckPoint();
+
+	if (notes.isEmpty()) {
+		return;
+	}
+
 	auto leftMostPos = notes.first()->pos();
 	//Limit leftwards shifts to prevent moving left of pattern start
 	auto shiftAmount = (leftMostPos > -amount) ? amount : -leftMostPos;