From aca062505b363c6c8c0ae3efd93f81b804251dca Mon Sep 17 00:00:00 2001
From: Ben Loftis <ben@harrisonconsoles.com>
Date: Sun, 19 Jul 2020 10:33:17 -0500
Subject: [PATCH] Region List: do not show empty MIDI regions

---
 gtk2_ardour/editor_regions.cc | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/gtk2_ardour/editor_regions.cc b/gtk2_ardour/editor_regions.cc
index e22ea46c9f..8b7e0e359b 100644
--- a/gtk2_ardour/editor_regions.cc
+++ b/gtk2_ardour/editor_regions.cc
@@ -383,6 +383,14 @@ EditorRegions::add_region (boost::shared_ptr<Region> region)
 		return;
 	}
 
+	/* we only show files-on-disk.
+	 * if there's some other kind of region, we ignore it (for now)
+	 */
+	boost::shared_ptr<FileSource> fs = boost::dynamic_pointer_cast<FileSource> (region->source());
+	if (!fs || fs->empty()) {
+		return;
+	}
+
 	PropertyChange pc;
 	region_changed (region, pc);
 }