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Diffstat (limited to 'src/engine/events/MidiLearnEvent.h')
-rw-r--r-- | src/engine/events/MidiLearnEvent.h | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/src/engine/events/MidiLearnEvent.h b/src/engine/events/MidiLearnEvent.h new file mode 100644 index 00000000..793e675a --- /dev/null +++ b/src/engine/events/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 |