Factor out and extend MIDIXML implementation

2 files changed, 96 insertions, 12 deletions

diff --git a/libs/evoral/evoral/MIDIEvent.hpp b/libs/evoral/evoral/MIDIEvent.hpp
index 1ce7074788..e8320c3e35 100644
--- a/libs/evoral/evoral/MIDIEvent.hpp
+++ b/libs/evoral/evoral/MIDIEvent.hpp
@@ -26,10 +26,6 @@
 #include "evoral/Event.hpp"
 #include "evoral/midi_events.h"
 
-#ifdef EVORAL_MIDI_XML
-class XMLNode;
-#endif
-
 namespace Evoral {
 
 /** MIDI helper functions for an Event.
@@ -49,14 +45,6 @@ public:
 		: Event<Time>(copy, alloc)
 	{}
 
-#ifdef EVORAL_MIDI_XML
-	/** Event from XML ala http://www.midi.org/dtds/MIDIEvents10.dtd */
-	MIDIEvent(const XMLNode& event);
-
-	/** Event to XML ala http://www.midi.org/dtds/MIDIEvents10.dtd */
-	boost::shared_ptr<XMLNode> to_xml() const;
-#endif
-
 	inline uint8_t  type()                  const { return (this->_buf[0] & 0xF0); }
 	inline void     set_type(uint8_t type)        { this->_buf[0] =   (0x0F & this->_buf[0])
 	                                                                | (0xF0 & type); }
diff --git a/libs/evoral/evoral/MIDIXML.hpp b/libs/evoral/evoral/MIDIXML.hpp
new file mode 100644
index 0000000000..982e203e55
--- /dev/null
+++ b/libs/evoral/evoral/MIDIXML.hpp
@@ -0,0 +1,96 @@
+/* This file is part of Evoral.
+ * Copyright (C) 2008-2016 David Robillard <http://drobilla.net>
+ * Copyright (C) 2000-2008 Paul Davis
+ *
+ * Evoral 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.
+ *
+ * Evoral 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 EVORAL_MIDI_XML_HPP
+#define EVORAL_MIDI_XML_HPP
+
+#include "evoral/MIDIEvent.hpp"
+#include "pbd/xml++.h"
+
+namespace Evoral {
+namespace MIDIXML {
+
+template<typename Time>
+bool
+xml_to_midi(const XMLNode& node, Evoral::MIDIEvent<Time>& ev)
+{
+	if (node.name() == "ControlChange") {
+		ev.set_type(MIDI_CMD_CONTROL);
+		ev.set_cc_number(atoi(node.property("Control")->value().c_str()));
+		ev.set_cc_value(atoi(node.property("Value")->value().c_str()));
+		return true;
+	} else if (node.name() == "ProgramChange") {
+		ev.set_type(MIDI_CMD_PGM_CHANGE);
+		ev.set_pgm_number(atoi(node.property("Number")->value().c_str()));
+		return true;
+	}
+
+	return false;
+}
+
+template<typename Time>
+boost::shared_ptr<XMLNode>
+midi_to_xml(const Evoral::MIDIEvent<Time>& ev)
+{
+	XMLNode* result = 0;
+
+	switch (ev.type()) {
+	case MIDI_CMD_CONTROL:
+		result = new XMLNode("ControlChange");
+		result->add_property("Channel", long(ev.channel()));
+		result->add_property("Control", long(ev.cc_number()));
+		result->add_property("Value",   long(ev.cc_value()));
+		break;
+
+	case MIDI_CMD_PGM_CHANGE:
+		result = new XMLNode("ProgramChange");
+		result->add_property("Channel", long(ev.channel()));
+		result->add_property("Number",  long(ev.pgm_number()));
+		break;
+
+	case MIDI_CMD_NOTE_ON:
+		result = new XMLNode("NoteOn");
+		result->add_property("Channel",  long(ev.channel()));
+		result->add_property("Note",     long(ev.note()));
+		result->add_property("Velocity", long(ev.velocity()));
+		break;
+
+	case MIDI_CMD_NOTE_OFF:
+		result = new XMLNode("NoteOff");
+		result->add_property("Channel",  long(ev.channel()));
+		result->add_property("Note",     long(ev.note()));
+		result->add_property("Velocity", long(ev.velocity()));
+		break;
+
+	case MIDI_CMD_BENDER:
+		result = new XMLNode("PitchBendChange");
+		result->add_property("Channel", long(ev.channel()));
+		result->add_property("Value",   long(ev.pitch_bender_value()));
+		break;
+
+	default:
+		return boost::shared_ptr<XMLNode>();
+	}
+
+	return boost::shared_ptr<XMLNode>(result);
+}
+
+} // namespace MIDIXML
+} // namespace Evoral
+
+#endif // EVORAL_MIDI_XML_HPP