From b5db8e7bad586502d7fbb135f008c94479eda0d0 Mon Sep 17 00:00:00 2001
From: Tobias Doerffel <tobias.doerffel@gmail.com>
Date: Wed, 20 Aug 2014 20:29:04 +0200
Subject: [PATCH] Pattern: disconnect PianoRoll before clearing current pattern

Closes #1083.
---
 src/tracks/pattern.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/tracks/pattern.cpp b/src/tracks/pattern.cpp
index 3ba6b3614..ae38f9651 100644
--- a/src/tracks/pattern.cpp
+++ b/src/tracks/pattern.cpp
@@ -651,6 +651,8 @@ patternView::~patternView()
 {
 	if( engine::pianoRoll()->currentPattern() == m_pat )
 	{
+		engine::pianoRoll()->disconnect( this );
+
 		engine::pianoRoll()->setCurrentPattern( NULL );
 		// we have to have the song-editor to stop playing if it played
 		// us before