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/*
Copyright (C) 2000-2007 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_automatable_h__
#define __ardour_automatable_h__
#include <set>
#include <map>
#include <boost/shared_ptr.hpp>
#include <ardour/session_object.h>
#include <ardour/automation_event.h>
#include <ardour/automation_control.h>
#include <ardour/parameter.h>
namespace ARDOUR {
class Session;
class AutomationControl;
class Automatable : public SessionObject
{
public:
Automatable(Session&, const std::string& name);
virtual ~Automatable() {}
// shorthand for gain, pan, etc
inline boost::shared_ptr<AutomationControl>
control(AutomationType type, bool create_if_missing=false) {
return control(Parameter(type), create_if_missing);
}
virtual boost::shared_ptr<AutomationControl> control(Parameter id, bool create_if_missing=false);
virtual boost::shared_ptr<const AutomationControl> control(Parameter id) const;
boost::shared_ptr<AutomationControl> control_factory(boost::shared_ptr<AutomationList> list);
typedef std::map<Parameter,boost::shared_ptr<AutomationControl> > Controls;
Controls& controls() { return _controls; }
const Controls& controls() const { return _controls; }
virtual void add_control(boost::shared_ptr<AutomationControl>);
virtual void automation_snapshot(nframes_t now, bool force);
bool should_snapshot (nframes_t now) {
return (_last_automation_snapshot > now || (now - _last_automation_snapshot) > _automation_interval);
}
virtual void transport_stopped(nframes_t now);
virtual bool find_next_event(nframes_t start, nframes_t end, ControlEvent& ev) const;
virtual string describe_parameter(Parameter param);
virtual float default_parameter_value(Parameter param) { return 1.0f; }
virtual void clear_automation();
AutoState get_parameter_automation_state (Parameter param, bool lock = true);
virtual void set_parameter_automation_state (Parameter param, AutoState);
AutoStyle get_parameter_automation_style (Parameter param);
void set_parameter_automation_style (Parameter param, AutoStyle);
void protect_automation ();
void what_has_automation(std::set<Parameter>&) const;
void what_has_visible_automation(std::set<Parameter>&) const;
const std::set<Parameter>& what_can_be_automated() const { return _can_automate_list; }
void mark_automation_visible(Parameter, bool);
Glib::Mutex& automation_lock() const { return _automation_lock; }
static void set_automation_interval (jack_nframes_t frames) {
_automation_interval = frames;
}
static jack_nframes_t automation_interval() {
return _automation_interval;
}
protected:
void can_automate(Parameter);
virtual void auto_state_changed (Parameter which) {}
int set_automation_state(const XMLNode&, Parameter default_param);
XMLNode& get_automation_state();
int load_automation (const std::string& path);
int old_set_automation_state(const XMLNode&);
mutable Glib::Mutex _automation_lock;
Controls _controls;
std::set<Parameter> _visible_controls;
std::set<Parameter> _can_automate_list;
nframes_t _last_automation_snapshot;
static nframes_t _automation_interval;
};
} // namespace ARDOUR
#endif /* __ardour_automatable_h__ */
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