allow creating plugin-presets by dragging a plugin to the sidebar

gtk2_ardour/mixer_ui.cc

@@ -207,6 +207,7 @@ Mixer_UI::Mixer_UI ()
 	favorite_plugins_display.set_drag_column (favorite_plugins_columns.name.index());
 	favorite_plugins_display.signal_row_activated().connect (sigc::mem_fun (*this, &Mixer_UI::plugin_row_activated));
 	favorite_plugins_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::plugin_row_button_press), false);
+	favorite_plugins_display.signal_drop.connect (sigc::mem_fun (*this, &Mixer_UI::plugin_drop));
 
 	favorite_plugins_scroller.add (favorite_plugins_display);
 	favorite_plugins_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
@@ -2500,3 +2501,19 @@ PluginTreeStore::row_drop_possible_vfunc(const Gtk::TreeModel::Path& dest, const
 	}
 	return false;
 }
+
+void
+Mixer_UI::plugin_drop (const Glib::RefPtr<Gdk::DragContext>&, const Gtk::SelectionData& data)
+{
+	if (data.get_target() != "PluginPresetPtr") {
+		return;
+	}
+	const void *d = data.get_data();
+	const PluginPresetPtr ppp = *(static_cast<const PluginPresetPtr*> (d));
+
+	PluginManager::PluginStatusType status = PluginManager::Favorite;
+	PluginManager& manager (PluginManager::instance());
+
+	manager.set_status (ppp->_pip->type, ppp->_pip->unique_id, status);
+	manager.save_statuses ();
+}

gtk2_ardour/mixer_ui.h

@@ -201,6 +201,7 @@ class Mixer_UI : public Gtk::Window, public PBD::ScopedConnectionList, public AR
 	void plugin_row_activated (const Gtk::TreeModel::Path& path, Gtk::TreeViewColumn* column);
 	bool plugin_row_button_press (GdkEventButton*);
 	void popup_note_context_menu (GdkEventButton*);
+	void plugin_drop (const Glib::RefPtr<Gdk::DragContext>&, const Gtk::SelectionData& data);
 
 	enum ProcessorPosition {
 		AddTop,

gtk2_ardour/processor_box.cc

@@ -75,6 +75,7 @@
 #include "send_ui.h"
 #include "timers.h"
 #include "tooltips.h"
+#include "new_plugin_preset_dialog.h"
 
 #include "i18n.h"
 
@@ -132,6 +133,12 @@ ProcessorEntry::ProcessorEntry (ProcessorBox* parent, boost::shared_ptr<Processo
 		_button.set_elements(ArdourButton::Element(_button.elements() & ~ArdourButton::Indicator));
 		_unknown_processor = true;
 	}
+	{
+		boost::shared_ptr<PluginInsert> pi = boost::dynamic_pointer_cast<PluginInsert> (_processor);
+		if (pi && pi->plugin()) {
+			_plugin_preset_pointer = PluginPresetPtr (new PluginPreset (pi->plugin()->get_info()));
+		}
+	}
 	if (_processor) {
 
 		_vbox.pack_start (_routing_icon);
@@ -211,6 +218,41 @@ ProcessorEntry::drag_text () const
 {
 	return name (Wide);
 }
+bool
+ProcessorEntry::drag_data_get (Glib::RefPtr<Gdk::DragContext> const, Gtk::SelectionData &data)
+{
+	if (data.get_target() == "PluginPresetPtr" && _plugin_preset_pointer) {
+		boost::shared_ptr<PluginInsert> pi = boost::dynamic_pointer_cast<PluginInsert> (_processor);
+		boost::shared_ptr<ARDOUR::Plugin> plugin = pi->plugin();
+		assert (plugin);
+		NewPluginPresetDialog d (plugin);
+
+		_plugin_preset_pointer->_preset.valid = false;
+
+		switch (d.run ()) {
+			case Gtk::RESPONSE_ACCEPT:
+				if (d.name().empty()) {
+					break;
+				}
+
+				if (d.replace ()) {
+					plugin->remove_preset (d.name ());
+				}
+
+				Plugin::PresetRecord const r = plugin->save_preset (d.name());
+
+				if (!r.uri.empty ()) {
+					_plugin_preset_pointer->_preset.uri   = r.uri;
+					_plugin_preset_pointer->_preset.label = r.label;
+					_plugin_preset_pointer->_preset.user  = r.user;
+					_plugin_preset_pointer->_preset.valid = r.valid;
+				}
+		}
+		data.set (data.get_target(), 8, (const guchar *) &_plugin_preset_pointer, sizeof (PluginPresetPtr));
+		return true;
+	}
+	return false;
+}
 
 void
 ProcessorEntry::set_position (Position p, uint32_t num)

gtk2_ardour/processor_box.h

@@ -119,6 +119,8 @@ public:
 	bool is_selectable() const {return _selectable;}
 	void set_selectable(bool s) { _selectable = s; }
 
+	bool drag_data_get (Glib::RefPtr<Gdk::DragContext> const, Gtk::SelectionData &);
+
 	enum Position {
 		PreFader,
 		Fader,
@@ -165,6 +167,7 @@ private:
 	PBD::ScopedConnection active_connection;
 	PBD::ScopedConnection name_connection;
 	PBD::ScopedConnection config_connection;
+	ARDOUR::PluginPresetPtr _plugin_preset_pointer;
 
 	class Control : public sigc::trackable {
 	public: