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+/* This file is part of Ingen.
+ * Copyright 2007-2011 David Robillard <http://drobilla.net>
+ *
+ * Ingen is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 2 of the License, or (at your option) 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 General Public License for details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef INGEN_INTERNALS_TRIGGER_HPP
+#define INGEN_INTERNALS_TRIGGER_HPP
+
+#include <string>
+#include "NodeImpl.hpp"
+
+namespace Ingen {
+namespace Server {
+
+class InputPort;
+class OutputPort;
+class InternalPlugin;
+
+namespace Internals {
+
+/** MIDI trigger input node.
+ *
+ * Just has a gate, for drums etc. A control port is used to select
+ * which note number is responded to.
+ *
+ * Note that this node is always monophonic, the poly parameter is ignored.
+ * (Should that change?)
+ *
+ * \ingroup engine
+ */
+class TriggerNode : public NodeImpl
+{
+public:
+ TriggerNode(
+ InternalPlugin* plugin,
+ BufferFactory& bufs,
+ const std::string& path,
+ bool polyphonic,
+ PatchImpl* parent,
+ SampleRate srate);
+
+ void process(ProcessContext& context);
+
+ void note_on(ProcessContext& context, uint8_t note_num, uint8_t velocity, FrameTime time);
+ void note_off(ProcessContext& context, uint8_t note_num, FrameTime time);
+
+ void learn() { _learning = true; }
+
+ static InternalPlugin* internal_plugin(Shared::LV2URIMap& uris);
+
+private:
+ bool _learning;
+
+ InputPort* _midi_in_port;
+ InputPort* _note_port;
+ OutputPort* _gate_port;
+ OutputPort* _trig_port;
+ OutputPort* _vel_port;
+};
+
+} // namespace Server
+} // namespace Ingen
+} // namespace Internals
+
+#endif // INGEN_INTERNALS_TRIGGER_HPP