From acbda29f838280ba98cf9e9e539e9d8a6e8fc6ad Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Fri, 9 Jun 2006 15:07:31 +0000
Subject: Added Om aka Graph aka god knows what

git-svn-id: http://svn.drobilla.net/lad/grauph@9 a436a847-0d15-0410-975c-d299462d15a1
---
 src/engine/MidiLearnEvent.h | 84 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 84 insertions(+)
 create mode 100644 src/engine/MidiLearnEvent.h

(limited to 'src/engine/MidiLearnEvent.h')

diff --git a/src/engine/MidiLearnEvent.h b/src/engine/MidiLearnEvent.h
new file mode 100644
index 00000000..793e675a
--- /dev/null
+++ b/src/engine/MidiLearnEvent.h
@@ -0,0 +1,84 @@
+/* This file is part of Om.  Copyright (C) 2006 Dave Robillard.
+ * 
+ * Om 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.
+ * 
+ * Om 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.,
+ * 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef MIDILEARNEVENT_H
+#define MIDILEARNEVENT_H
+
+#include "QueuedEvent.h"
+#include "MidiControlNode.h"
+#include "util/types.h"
+#include <string>
+using std::string;
+
+namespace Om {
+
+class Node;
+class ControlChangeEvent;
+
+
+/** Response event for a MIDI learn.
+ *
+ * This is a trivial event that sends a control change in it's post_process
+ * method (used by MidiLearnEvent to notify clients when the learn happens)
+ */
+class MidiLearnResponseEvent : public Event
+{
+public:
+	MidiLearnResponseEvent(const string& port_path)
+	: Event(CountedPtr<Responder>(NULL)),
+	  m_port_path(port_path),
+	  m_value(0.0f)
+	{}
+	
+	void set_value(sample val) { m_value = val; }
+	void post_process();
+	
+private:
+	string m_port_path;
+	sample m_value;
+};
+
+
+
+/** A MIDI learn event.
+ *
+ * This creates a MidiLearnResponseEvent and passes it to the learning node, which
+ * will push it to the post-processor once the learn happens in order to reply
+ * to the client with the new port (learned controller) value.
+ *
+ * \ingroup engine
+ */
+class MidiLearnEvent : public QueuedEvent
+{
+public:
+	MidiLearnEvent(CountedPtr<Responder> responder, const string& node_path);
+	
+	void pre_process();
+	void execute(samplecount offset);
+	void post_process();
+
+private:
+	string  m_node_path;
+	Node*   m_node;
+	
+	/// Event to respond with when learned
+	MidiLearnResponseEvent* m_response_event;
+};
+
+
+} // namespace Om
+
+#endif // MIDILEARNEVENT_H
-- 
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