1 files changed, 88 insertions, 0 deletions
diff --git a/libs/evoral/src/Control.cc b/libs/evoral/src/Control.cc
new file mode 100644
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--- /dev/null
+++ b/libs/evoral/src/Control.cc
@@ -0,0 +1,88 @@
+/*
+ * Copyright (C) 2008-2016 David Robillard <d@drobilla.net>
+ * Copyright (C) 2010-2014 Paul Davis <paul@linuxaudiosystems.com>
+ * Copyright (C) 2010 Carl Hetherington <carl@carlh.net>
+ * Copyright (C) 2015-2017 Robin Gareus <robin@gareus.org>
+ *
+ * This program 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.
+ *
+ * This program 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 more 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 Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <iostream>
+
+#include "evoral/Control.h"
+#include "evoral/ControlList.h"
+#include "evoral/ParameterDescriptor.h"
+#include "evoral/TypeMap.h"
+
+namespace Evoral {
+
+Control::Control(const Parameter&               parameter,
+                 const ParameterDescriptor&     desc,
+                 boost::shared_ptr<ControlList> list)
+	: _parameter(parameter)
+	, _user_value(desc.normal)
+{
+	set_list (list);
+}
+
+
+/** Get the currently effective value (ie the one that corresponds to current output)
+ */
+double
+Control::get_double (bool from_list, double frame) const
+{
+	if (from_list) {
+		return _list->eval(frame);
+	} else {
+		return _user_value;
+	}
+}
+
+
+void
+Control::set_double (double value, double frame, bool to_list)
+{
+	_user_value = value;
+
+	/* if we're in a write pass, the automation watcher will determine the
+	   values and add them to the list, so we we don't need to bother.
+	*/
+
+	if (to_list && (!_list->in_write_pass() || _list->descriptor().toggled)) {
+		_list->add (frame, value, false);
+	}
+}
+
+
+void
+Control::set_list(boost::shared_ptr<ControlList> list)
+{
+	_list_marked_dirty_connection.disconnect ();
+
+	_list = list;
+
+	if (_list) {
+		_list->Dirty.connect_same_thread (_list_marked_dirty_connection, boost::bind (&Control::list_marked_dirty, this));
+	}
+}
+
+void
+Control::list_marked_dirty ()
+{
+	ListMarkedDirty (); /* EMIT SIGNAL */
+}
+
+} // namespace Evoral
+