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authorDavid Robillard <d@drobilla.net>2006-06-10 01:02:08 +0000
committerDavid Robillard <d@drobilla.net>2006-06-10 01:02:08 +0000
commit6f78a755b0f8c59f85cdc02e9eeca8db860a2ed2 (patch)
treedbb7c668101a811e8b5e10f42f19991edb129674 /src/engine/events/MidiLearnEvent.h
parentc2fbab4c27df8b9346bb68e30fddd7f94540dee1 (diff)
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Juggling things around...
git-svn-id: http://svn.drobilla.net/lad/grauph@13 a436a847-0d15-0410-975c-d299462d15a1
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+/* 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