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hand merge changes to PBD::Controllable from Ardour CC branch

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This commit is contained in:
Paul Davis 2014-08-18 12:51:29 -04:00
parent 16432f0d2f
commit b83142d89a
1 changed files with 22 additions and 2 deletions
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24
libs/pbd/pbd/controllable.h
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@ -30,6 +30,9 @@
#include "pbd/statefuldestructible.h"
using std::min;
using std::max;
class XMLNode;
namespace PBD {
@ -60,11 +63,25 @@ class LIBPBD_API Controllable : public PBD::StatefulDestructible {
* but passed to the processor as a linear quantity.
*/
/** Set `internal' value */
/** Get and Set `internal' value */
virtual void set_value (double) = 0;
/** @return `internal' value */
virtual double get_value (void) const = 0;
/** Conversions between `internal', 'interface', and 'user' values */
virtual double internal_to_interface (double i) const {return (i-lower())/(upper() - lower());} //by default, the interface range is just a linear interpolation between lower and upper values
virtual double interface_to_internal (double i) const {return lower() + i*(upper() - lower());}
virtual double internal_to_user (double i) const {return i;} //by default the internal value is the same as the user value
virtual double user_to_internal (double i) const {return i;} //by default the internal value is the same as the user value
/** Get and Set `interface' value (typically, percent of knob travel) */
virtual float get_interface() const { return (internal_to_interface(get_value())); }
virtual void set_interface (float percent) { percent = min( max(0.0f, percent), 1.0f); set_value(interface_to_internal(percent)); }
/** Get and Set `user' value ( dB or milliseconds, etc. This MIGHT be the same as the internal value, but in a few cases it is not ) */
virtual float get_user() const { return (internal_to_user(get_value())); }
virtual void set_user (float user_v) { set_value(user_to_internal(user_v)); }
virtual std::string get_user_string() const { return std::string(); }
PBD::Signal0<void> LearningFinished;
static PBD::Signal3<void,PBD::Controllable*,int,int> CreateBinding;
static PBD::Signal1<void,PBD::Controllable*> DeleteBinding;
@ -89,6 +106,7 @@ class LIBPBD_API Controllable : public PBD::StatefulDestructible {
virtual double lower() const { return 0.0; }
virtual double upper() const { return 1.0; }
virtual double normal() const { return 0.0; } //the default value
Flag flags() const { return _flags; }
void set_flags (Flag f);
@ -99,6 +117,8 @@ class LIBPBD_API Controllable : public PBD::StatefulDestructible {
private:
std::string _name;
std::string _units;
Flag _flags;
bool _touching;