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 <map>
#include "pbd/signals.h"
-#include <glibmm/thread.h>
+#include <glibmm/threads.h>
#include "pbd/statefuldestructible.h"
public:
enum Flag {
Toggle = 0x1,
- Discrete = 0x2,
- GainLike = 0x4,
- IntegerOnly = 0x8
+ GainLike = 0x2,
};
Controllable (const std::string& name, Flag f = Flag (0));
virtual ~Controllable() { Destroyed (this); }
+ /* 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;
void set_touching (bool yn) { _touching = yn; }
bool is_toggle() const { return _flags & Toggle; }
- bool is_discrete() const { return _flags & Discrete; }
bool is_gain_like() const { return _flags & GainLike; }
- bool is_integral_only() const { return _flags & IntegerOnly; }
virtual double lower() const { return 0.0; }
virtual double upper() const { return 1.0; }
Flag flags() const { return _flags; }
void set_flags (Flag f);
- virtual uint32_t get_discrete_values (std::list<float>&) { return 0; /* no values returned */ }
-
static Controllable* by_id (const PBD::ID&);
static Controllable* by_name (const std::string&);
static const std::string xml_node_name;
static void remove (Controllable*);
typedef std::set<PBD::Controllable*> Controllables;
- static Glib::StaticRWLock registry_lock;
+ static Glib::Threads::RWLock registry_lock;
static Controllables registry;
};