Copyright (C) 2000-2007 Paul Davis
This program is free software; you can redistribute it and/or modify
-v it under the terms of the GNU General Public License as published by
+ 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.
#include <set>
#include <map>
-#include <boost/signals2.hpp>
-#include <glibmm/thread.h>
+#include "pbd/signals.h"
+#include <glibmm/threads.h>
#include "pbd/statefuldestructible.h"
class Controllable : public PBD::StatefulDestructible {
public:
- Controllable (const std::string& name, const std::string& uri);
- virtual ~Controllable() { Destroyed (this); }
-
- void set_uri (const std::string&);
- const std::string& uri() const { return _uri; }
-
- virtual void set_value (float) = 0;
- virtual float get_value (void) const = 0;
+ enum Flag {
+ Toggle = 0x1,
+ GainLike = 0x2,
+ };
- boost::signals2::signal<void()> LearningFinished;
- static boost::signals2::signal<void(PBD::Controllable*,int,int)> CreateBinding;
- static boost::signals2::signal<void(PBD::Controllable*)> DeleteBinding;
-
- static boost::signals2::signal<bool(PBD::Controllable*)> StartLearning;
- static boost::signals2::signal<void(PBD::Controllable*)> StopLearning;
+ Controllable (const std::string& name, Flag f = Flag (0));
+ virtual ~Controllable() { Destroyed (this); }
- static boost::signals2::signal<void(Controllable*)> Destroyed;
+ /* We express Controllable values in one of three ways:
+ * 1. `user' --- as presented to the user (e.g. dB, Hz, etc.)
+ * 2. `interface' --- as used in some cases for the UI representation
+ * (in order to make controls behave logarithmically).
+ * 3. `internal' --- as passed to a processor, track, plugin, or whatever.
+ *
+ * Note that in some cases user and processor may be the same
+ * (and interface different) e.g. frequency, which is presented
+ * to the user and passed to the processor in linear terms, but
+ * which needs log scaling in the interface.
+ *
+ * In other cases, user and interface may be the same (and processor different)
+ * e.g. gain, which is presented to the user in log terms (dB)
+ * but passed to the processor as a linear quantity.
+ */
+
+ /** Set `internal' value */
+ virtual void set_value (double) = 0;
+ /** @return `internal' value */
+ virtual double get_value (void) const = 0;
+
+ PBD::Signal0<void> LearningFinished;
+ static PBD::Signal3<void,PBD::Controllable*,int,int> CreateBinding;
+ static PBD::Signal1<void,PBD::Controllable*> DeleteBinding;
+
+ static PBD::Signal1<bool,PBD::Controllable*> StartLearning;
+ static PBD::Signal1<void,PBD::Controllable*> StopLearning;
+
+ static PBD::Signal1<void,Controllable*> Destroyed;
- boost::signals2::signal<void()> Changed;
+ PBD::Signal0<void> Changed;
int set_state (const XMLNode&, int version);
XMLNode& get_state ();
std::string name() const { return _name; }
- bool touching () const { return _touching; }
-
+
+ bool touching () const { return _touching; }
void set_touching (bool yn) { _touching = yn; }
+ bool is_toggle() const { return _flags & Toggle; }
+ bool is_gain_like() const { return _flags & GainLike; }
+
+ virtual double lower() const { return 0.0; }
+ virtual double upper() const { return 1.0; }
+
+ Flag flags() const { return _flags; }
+ void set_flags (Flag f);
+
static Controllable* by_id (const PBD::ID&);
static Controllable* by_name (const std::string&);
- static Controllable* by_uri (const std::string&);
-
+ static const std::string xml_node_name;
private:
std::string _name;
- std::string _uri;
+
+ Flag _flags;
bool _touching;
static void add (Controllable&);
- static void remove (Controllable&);
+ static void remove (Controllable*);
typedef std::set<PBD::Controllable*> Controllables;
- typedef std::map<std::string,PBD::Controllable*> ControllablesByURI;
- static Glib::StaticRWLock registry_lock;
+ static Glib::Threads::RWLock registry_lock;
static Controllables registry;
- static ControllablesByURI registry_by_uri;
};
/* a utility class for the occasions when you need but do not have
class IgnorableControllable : public Controllable
{
public:
- IgnorableControllable () : PBD::Controllable ("ignoreMe", std::string()) {}
+ IgnorableControllable () : PBD::Controllable ("ignoreMe") {}
~IgnorableControllable () {}
- void set_value (float /*v*/) {}
- float get_value () const { return 0.0; }
+ void set_value (double /*v*/) {}
+ double get_value () const { return 0.0; }
};
}