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/*
Copyright (C) 2016 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.
*/
#ifndef __ardour_mute_control_h__
#define __ardour_mute_control_h__
#include <string>
#include <boost/shared_ptr.hpp>
#include "ardour/slavable_automation_control.h"
#include "ardour/mute_master.h"
#include "ardour/libardour_visibility.h"
namespace ARDOUR {
class Session;
class Muteable;
class LIBARDOUR_API MuteControl : public SlavableAutomationControl
{
public:
MuteControl (Session& session, std::string const& name, Muteable&);
double get_value () const;
double get_save_value() const { return muted_by_self(); }
/* Export additional API so that objects that only get access
* to a Controllable/AutomationControl can do more fine-grained
* operations with respect to mute. Obviously, they would need
* to dynamic_cast<MuteControl> first.
*
* Mute state is not representable by a single scalar value,
* so set_value() and get_value() is not enough.
*
* This means that the Controllable is technically
* asymmetric. It is possible to call ::set_value (0.0) to
* turn off mute, and then call ::get_value() and get a
* return of 1.0 because the control is affected by
* upstream/downstream or a master.
*/
bool muted () const;
bool muted_by_self () const;
bool muted_by_masters () const;
bool muted_by_self_or_masters () const {
return muted_by_self() || muted_by_masters ();
}
bool muted_by_others_soloing () const;
void set_mute_points (MuteMaster::MutePoint);
MuteMaster::MutePoint mute_points () const;
void automation_run (samplepos_t start, pframes_t nframes);
protected:
bool handle_master_change (boost::shared_ptr<AutomationControl>);
void actually_set_value (double, PBD::Controllable::GroupControlDisposition group_override);
void pre_remove_master (boost::shared_ptr<AutomationControl>);
void post_add_master (boost::shared_ptr<AutomationControl>);
private:
Muteable& _muteable;
};
} /* namespace */
#endif /* __libardour_mute_control_h__ */
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