+/*
+ 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
+ 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 __pbd_controllable_h__
#define __pbd_controllable_h__
#include <string>
#include <set>
+#include <map>
-#include <sigc++/trackable.h>
-#include <sigc++/signal.h>
+#include "pbd/signals.h"
+#include <glibmm/thread.h>
-#include <pbd/statefuldestructible.h>
+#include "pbd/statefuldestructible.h"
class XMLNode;
class Controllable : public PBD::StatefulDestructible {
public:
- Controllable (std::string name);
+ enum Flag {
+ Toggle = 0x1,
+ Discrete = 0x2,
+ GainLike = 0x4,
+ IntegerOnly = 0x8
+ };
+
+ Controllable (const std::string& name, Flag f = Flag (0));
virtual ~Controllable() { Destroyed (this); }
virtual void set_value (float) = 0;
virtual float get_value (void) const = 0;
- virtual bool can_send_feedback() const { return true; }
+ PBD::Signal0<void> LearningFinished;
+ static PBD::Signal3<void,PBD::Controllable*,int,int> CreateBinding;
+ static PBD::Signal1<void,PBD::Controllable*> DeleteBinding;
- sigc::signal<void> LearningFinished;
+ static PBD::Signal1<bool,PBD::Controllable*> StartLearning;
+ static PBD::Signal1<void,PBD::Controllable*> StopLearning;
- static sigc::signal<bool,PBD::Controllable*> StartLearning;
- static sigc::signal<void,PBD::Controllable*> StopLearning;
+ static PBD::Signal1<void,Controllable*> Destroyed;
+
+ PBD::Signal0<void> Changed;
- static sigc::signal<void,Controllable*> Destroyed;
+ int set_state (const XMLNode&, int version);
+ XMLNode& get_state ();
- sigc::signal<void> Changed;
+ std::string name() const { return _name; }
- int set_state (const XMLNode&);
- XMLNode& get_state ();
+ bool touching () const { return _touching; }
+ void set_touching (bool yn) { _touching = yn; }
- std::string name() const { return _name; }
+ 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 float lower() const { return 0.0f; }
+ virtual float upper() const { return 1.0f; }
+
+ 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&);
private:
std::string _name;
- void add ();
- void remove ();
+ Flag _flags;
+ bool _touching;
+
+ static void add (Controllable&);
+ static void remove (Controllable*);
typedef std::set<PBD::Controllable*> Controllables;
- static Glib::Mutex* registry_lock;
+ static Glib::StaticRWLock registry_lock;
static Controllables registry;
};
+/* a utility class for the occasions when you need but do not have
+ a Controllable
+*/
+
+class IgnorableControllable : public Controllable
+{
+ public:
+ IgnorableControllable () : PBD::Controllable ("ignoreMe") {}
+ ~IgnorableControllable () {}
+
+ void set_value (float /*v*/) {}
+ float get_value () const { return 0.0; }
+};
+
}
#endif /* __pbd_controllable_h__ */