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.
class Controllable : public PBD::StatefulDestructible {
public:
- Controllable (const std::string& name, const std::string& uri);
+ enum Flag {
+ Toggle = 0x1,
+ GainLike = 0x2,
+ };
+
+ Controllable (const std::string& name, Flag f = Flag (0));
virtual ~Controllable() { Destroyed (this); }
- void set_uri (const std::string&);
- const std::string& uri() const { return _uri; }
+ /* We express Controllable values in one of three ways:
+ * 1. `user' --- as presented to the user (e.g. dB, Hz etc.)
+ * 2. `UI' --- as used in some cases for the internal representation
+ * of the UI. This may be the same as `user', or may be something
+ * like the natural log of frequency in order that sliders operate
+ * in a logarithmic fashion.
+ * 3. `plugin' --- as passed to a plugin.
+ */
- virtual void set_value (float) = 0;
- virtual float get_value (void) const = 0;
+ /** Set `user' value */
+ virtual void set_value (double) = 0;
+ /** @return `user' value */
+ virtual double get_value (void) const = 0;
PBD::Signal0<void> LearningFinished;
static PBD::Signal3<void,PBD::Controllable*,int,int> CreateBinding;
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*);
typedef std::set<PBD::Controllable*> Controllables;
- typedef std::map<std::string,PBD::Controllable*> ControllablesByURI;
static Glib::StaticRWLock 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; }
};
}