From 646bcc68854b0c4bd0ccf5287136363a0f714130 Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Wed, 23 Dec 2015 18:23:11 +0100
Subject: [PATCH] allow dragging plugins directly from the manager

---
 gtk2_ardour/plugin_selector.cc | 4 ++++
 gtk2_ardour/plugin_selector.h  | 3 ++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/gtk2_ardour/plugin_selector.cc b/gtk2_ardour/plugin_selector.cc
index a38ad7d2e0..7d3594e4cd 100644
--- a/gtk2_ardour/plugin_selector.cc
+++ b/gtk2_ardour/plugin_selector.cc
@@ -105,6 +105,10 @@ PluginSelector::PluginSelector (PluginManager& mgr)
 	plugin_display.set_headers_clickable (true);
 	plugin_display.set_reorderable (false);
 	plugin_display.set_rules_hint (true);
+	plugin_display.add_object_drag (plugin_columns.plugin.index(), "PluginInfoPtr");
+
+	// setting a sort-column prevents re-ordering via Drag/Drop
+	plugin_model->set_sort_column (plugin_columns.name.index(), Gtk::SORT_ASCENDING);
 
 	CellRendererToggle* fav_cell = dynamic_cast<CellRendererToggle*>(plugin_display.get_column_cell_renderer (0));
 	fav_cell->property_activatable() = true;
diff --git a/gtk2_ardour/plugin_selector.h b/gtk2_ardour/plugin_selector.h
index cb90acc2d0..a377d5b49d 100644
--- a/gtk2_ardour/plugin_selector.h
+++ b/gtk2_ardour/plugin_selector.h
@@ -23,6 +23,7 @@
 #include <gtkmm/dialog.h>
 #include <gtkmm/notebook.h>
 #include <gtkmm/treeview.h>
+#include "gtkmm2ext/dndtreeview.h"
 #include <gtkmm2ext/selector.h>
 
 #include "ardour/plugin.h"
@@ -99,7 +100,7 @@ class PluginSelector : public ArdourDialog
 	};
 	PluginColumns plugin_columns;
 	Glib::RefPtr<Gtk::ListStore> plugin_model;
-	Gtk::TreeView plugin_display;
+	Gtkmm2ext::DnDTreeView<ARDOUR::PluginInfoPtr> plugin_display;
 	Gtk::Button* btn_add;
 	Gtk::Button* btn_remove;