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/*
* Copyright (C) 2008-2014 David Robillard <d@drobilla.net>
* Copyright (C) 2008-2017 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2009-2012 Carl Hetherington <carl@carlh.net>
* Copyright (C) 2015-2017 Robin Gareus <robin@gareus.org>
* Copyright (C) 2015 Nick Mainsbridge <mainsbridge@gmail.com>
*
* 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.
*/
#ifndef __ardour_automation_event_h__
#define __ardour_automation_event_h__
#include <stdint.h>
#include <cstdlib>
#include <list>
#include <cmath>
#include <glibmm/threads.h>
#include "evoral/ControlList.h"
#include "evoral/Parameter.h"
#include "pbd/undo.h"
#include "pbd/xml++.h"
#include "pbd/statefuldestructible.h"
#include "pbd/properties.h"
#include "ardour/ardour.h"
namespace ARDOUR {
class AutomationList;
class DoubleBeatsSamplesConverter;
/** A SharedStatefulProperty for AutomationLists */
class LIBARDOUR_API AutomationListProperty : public PBD::SharedStatefulProperty<AutomationList>
{
public:
AutomationListProperty (PBD::PropertyDescriptor<boost::shared_ptr<AutomationList> > d, Ptr p)
: PBD::SharedStatefulProperty<AutomationList> (d.property_id, p)
{}
AutomationListProperty (PBD::PropertyDescriptor<boost::shared_ptr<AutomationList> > d, Ptr o, Ptr c)
: PBD::SharedStatefulProperty<AutomationList> (d.property_id, o, c)
{}
PBD::PropertyBase* clone () const;
private:
/* No copy-construction nor assignment */
AutomationListProperty (AutomationListProperty const &);
AutomationListProperty& operator= (AutomationListProperty const &);
};
/** AutomationList is a stateful wrapper around Evoral::ControlList.
* It includes session-specifics (such as automation state), control logic (e.g. touch, signals)
* and acts as proxy to the underlying ControlList which holds the actual data.
*/
class LIBARDOUR_API AutomationList : public Evoral::ControlList, public PBD::StatefulDestructible
{
public:
AutomationList (const Evoral::Parameter& id, const Evoral::ParameterDescriptor& desc);
AutomationList (const Evoral::Parameter& id);
AutomationList (const XMLNode&, Evoral::Parameter id);
AutomationList (const AutomationList&);
AutomationList (const AutomationList&, double start, double end);
~AutomationList();
virtual boost::shared_ptr<ControlList> create(const Evoral::Parameter& id,
const Evoral::ParameterDescriptor& desc);
AutomationList& operator= (const AutomationList&);
void thaw ();
bool paste (const ControlList&, double, DoubleBeatsSamplesConverter const&);
void set_automation_state (AutoState);
AutoState automation_state() const;
PBD::Signal1<void, AutoState> automation_state_changed;
bool automation_playback() const {
return (_state & Play) || ((_state & (Touch | Latch)) && !touching());
}
bool automation_write () const {
return ((_state & Write) || ((_state & (Touch | Latch)) && touching()));
}
PBD::Signal0<void> StateChanged;
static PBD::Signal1<void,AutomationList*> AutomationListCreated;
void start_write_pass (double when);
void write_pass_finished (double when, double thinning_factor=0.0);
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 _state == Write; }
bool touch_enabled() const { return _state & (Touch | Latch); }
XMLNode& get_state ();
int set_state (const XMLNode &, int version);
Command* memento_command (XMLNode* before, XMLNode* after);
bool operator!= (const AutomationList &) const;
XMLNode* before () { XMLNode* rv = _before; _before = 0; return rv; }
void clear_history ();
void snapshot_history (bool need_lock);
ControlList::InterpolationStyle default_interpolation () const;
private:
void create_curve_if_necessary ();
int deserialize_events (const XMLNode&);
XMLNode& state (bool save_auto_state, bool need_lock);
XMLNode& serialize_events (bool need_lock);
void maybe_signal_changed ();
AutoState _state;
gint _touching;
PBD::ScopedConnection _writepass_connection;
bool operator== (const AutomationList&) const { /* not called */ abort(); return false; }
XMLNode* _before; //used for undo of touch start/stop pairs.
};
} // namespace
#endif /* __ardour_automation_event_h__ */
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