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/*

    Copyright (C) 2009 Paul Davis

    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., 675 Mass Ave, Cambridge, MA 02139, USA.

*/

#include "pbd/enumwriter.h"
#include "pbd/xml++.h"

#include "ardour/types.h"
#include "ardour/mute_master.h"
#include "ardour/rc_configuration.h"

#include "i18n.h"

using namespace ARDOUR;

const MuteMaster::MutePoint MuteMaster::AllPoints = MutePoint (MuteMaster::PreFader|
							       MuteMaster::PostFader|
							       MuteMaster::Listen|
							       MuteMaster::Main);

MuteMaster::MuteMaster (Session&, const std::string&)
	: _mute_point (MutePoint (0))
{
}

void
MuteMaster::clear_mute ()
{
	if (_mute_point != MutePoint (0)) {
		_mute_point = MutePoint (0);
		MutePointChanged (); // EMIT SIGNAL
	}
}

void
MuteMaster::mute_at (MutePoint mp)
{
	if ((_mute_point & mp) != mp) {
		_mute_point = MutePoint (_mute_point | mp);
		MutePointChanged (); // EMIT SIGNAL
	}
}

void
MuteMaster::unmute_at (MutePoint mp)
{
	if ((_mute_point & mp) == mp) {
		_mute_point = MutePoint (_mute_point & ~mp);
		MutePointChanged (); // EMIT SIGNAL
	}
}

gain_t
MuteMaster::mute_gain_at (MutePoint mp) const
{
	if (_mute_point & mp) {
		return Config->get_solo_mute_gain ();
	} else {
		return 1.0;
	}
}

int
MuteMaster::set_state (std::string mute_point)
{
	_mute_point = (MutePoint) string_2_enum (mute_point, _mute_point);

	return 0;
}

int
MuteMaster::set_state (const XMLNode& node, int /*version*/)
{
	const XMLProperty* prop;

	if ((prop = node.property ("mute-point")) != 0) {
		_mute_point = (MutePoint) string_2_enum (prop->value(), _mute_point);
	}

	return 0;
}

XMLNode&
MuteMaster::get_state()
{
	XMLNode* node = new XMLNode (X_("MuteMaster"));
	node->add_property ("mute-point", enum_2_string (_mute_point));
	return *node;
}