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/*
Copyright (C) 2011 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 __libardour_pannable_h__
#define __libardour_pannable_h__
#include <string>
#include <boost/shared_ptr.hpp>
#include "pbd/stateful.h"
#include "evoral/Parameter.hpp"
#include "ardour/automatable.h"
#include "ardour/session_handle.h"
namespace ARDOUR {
class Session;
class AutomationControl;
class Panner;
class LIBARDOUR_API Pannable : public PBD::Stateful, public Automatable, public SessionHandleRef
{
public:
Pannable (Session& s);
~Pannable ();
boost::shared_ptr<AutomationControl> pan_azimuth_control;
boost::shared_ptr<AutomationControl> pan_elevation_control;
boost::shared_ptr<AutomationControl> pan_width_control;
boost::shared_ptr<AutomationControl> pan_frontback_control;
boost::shared_ptr<AutomationControl> pan_lfe_control;
boost::shared_ptr<Panner> panner() const { return _panner.lock(); }
void set_panner(boost::shared_ptr<Panner>);
Session& session() { return _session; }
void set_automation_state (AutoState);
AutoState automation_state() const { return _auto_state; }
PBD::Signal1<void, AutoState> automation_state_changed;
bool automation_playback() const {
return (_auto_state & Play) || ((_auto_state & (Touch | Latch)) && !touching());
}
bool automation_write () const {
return ((_auto_state & Write) || ((_auto_state & (Touch | Latch)) && touching()));
}
std::string value_as_string (boost::shared_ptr<const AutomationControl>) const;
void start_touch (double when);
void stop_touch (double when);
bool touching() const { return g_atomic_int_get (const_cast<gint*>(&_touching)); }
bool writing() const { return _auto_state == Write; }
bool touch_enabled() const { return _auto_state & (Touch | Latch); }
XMLNode& get_state ();
int set_state (const XMLNode&, int version);
bool has_state() const { return _has_state; }
protected:
virtual XMLNode& state ();
boost::weak_ptr<Panner> _panner;
AutoState _auto_state;
gint _touching;
bool _has_state;
uint32_t _responding_to_control_auto_state_change;
void control_auto_state_changed (AutoState);
private:
void value_changed ();
};
} // namespace
#endif /* __libardour_pannable_h__ */
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