From b086d33937d3cb593dbcea2dc27b68f1c3521a90 Mon Sep 17 00:00:00 2001
From: nick_m <mainsbridge@gmail.com>
Date: Fri, 9 Jun 2017 01:56:28 +1000
Subject: [PATCH] TempoLines deletes its bfc on destruction

---
 gtk2_ardour/tempo_lines.cc | 6 ++++++
 gtk2_ardour/tempo_lines.h  | 1 +
 2 files changed, 7 insertions(+)

diff --git a/gtk2_ardour/tempo_lines.cc b/gtk2_ardour/tempo_lines.cc
index ff7b8ad529..cdbde54961 100644
--- a/gtk2_ardour/tempo_lines.cc
+++ b/gtk2_ardour/tempo_lines.cc
@@ -36,6 +36,12 @@ TempoLines::TempoLines (ArdourCanvas::Container* group, double, ARDOUR::BeatsFra
 	lines.set_extent (ArdourCanvas::COORD_MAX);
 }
 
+TempoLines::~TempoLines ()
+{
+	delete _bfc;
+	_bfc = 0;
+}
+
 void
 TempoLines::tempo_map_changed()
 {
diff --git a/gtk2_ardour/tempo_lines.h b/gtk2_ardour/tempo_lines.h
index 7425f6aae3..be5e1315c9 100644
--- a/gtk2_ardour/tempo_lines.h
+++ b/gtk2_ardour/tempo_lines.h
@@ -27,6 +27,7 @@
 class TempoLines {
 public:
 	TempoLines (ArdourCanvas::Container* group, double screen_height, ARDOUR::BeatsFramesConverter* bfc);
+	~TempoLines ();
 
 	void tempo_map_changed();