1 files changed, 111 insertions, 0 deletions
diff --git a/ingen/client/PluginUI.hpp b/ingen/client/PluginUI.hpp
new file mode 100644
index 00000000..a98df61d
--- /dev/null
+++ b/ingen/client/PluginUI.hpp
@@ -0,0 +1,111 @@
+/*
+  This file is part of Ingen.
+  Copyright 2007-2015 David Robillard <http://drobilla.net/>
+
+  Ingen is free software: you can redistribute it and/or modify it under the
+  terms of the GNU Affero General Public License as published by the Free
+  Software Foundation, either version 3 of the License, or any later version.
+
+  Ingen is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for details.
+
+  You should have received a copy of the GNU Affero General Public License
+  along with Ingen.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef INGEN_CLIENT_PLUGINUI_HPP
+#define INGEN_CLIENT_PLUGINUI_HPP
+
+#include <set>
+
+#include "ingen/LV2Features.hpp"
+#include "ingen/ingen.h"
+#include "ingen/types.hpp"
+#include "lilv/lilv.h"
+#include "suil/suil.h"
+
+namespace Ingen {
+
+class Interface;
+class World;
+
+namespace Client {
+
+class BlockModel;
+
+/** Custom user interface for a plugin.
+ *
+ * @ingroup IngenClient
+ */
+class INGEN_API PluginUI {
+public:
+	~PluginUI();
+
+	/** Create a UI for the given block and plugin.
+	 *
+	 * This does not actually instantiate the UI itself, so signals can be
+	 * connected first.  The caller should connect to signal_property_changed,
+	 * then call instantiate().
+	 */
+	static SPtr<PluginUI> create(Ingen::World*          world,
+	                             SPtr<const BlockModel> block,
+	                             const LilvPlugin*      plugin);
+
+	/** Instantiate the UI.
+	 *
+	 * If true is returned, instantiation was successfull and the widget can be
+	 * obtained with get_widget(). Otherwise, instantiation failed, so there is
+	 * no widget and the UI can not be used.
+	 */
+	bool instantiate();
+	bool instantiated () { return _instance != nullptr; }
+
+	SuilWidget get_widget();
+
+	void port_event(uint32_t    port_index,
+	                uint32_t    buffer_size,
+	                uint32_t    format,
+	                const void* buffer);
+
+	bool is_resizable() const;
+
+	/** Signal emitted when the UI sets a property.
+	 *
+	 * The application must connect to this signal to communicate with the
+	 * engine and/or update itself as necessary.
+	 */
+	INGEN_SIGNAL(property_changed, void,
+	             const URI&,        // Subject
+	             const URI&,        // Predicate
+	             const Atom&,       // Object
+	             Resource::Graph);  // Context
+
+	Ingen::World*          world() const { return _world; }
+	SPtr<const BlockModel> block() const { return _block; }
+
+private:
+	PluginUI(Ingen::World*          world,
+	         SPtr<const BlockModel> block,
+	         LilvUIs*               uis,
+	         const LilvUI*          ui,
+	         const LilvNode*        ui_type);
+
+	Ingen::World*          _world;
+	SPtr<const BlockModel> _block;
+	SuilInstance*          _instance;
+	LilvUIs*               _uis;
+	const LilvUI*          _ui;
+	LilvNode*              _ui_node;
+	LilvNode*              _ui_type;
+	std::set<uint32_t>     _subscribed_ports;
+
+	static SuilHost* ui_host;
+
+	SPtr<LV2Features::FeatureArray> _features;
+};
+
+} // namespace Client
+} // namespace Ingen
+
+#endif // INGEN_CLIENT_PLUGINUI_HPP