Reinstate user Controllable values, as they are needed

for gain (which I forgot about).


git-svn-id: svn://localhost/ardour2/branches/3.0@11293 d708f5d6-7413-0410-9779-e7cbd77b26cf

gtk2_ardour/automation_controller.cc

@@ -95,11 +95,11 @@ AutomationController::get_label (double& xpos)
 void
 AutomationController::display_effective_value()
 {
-	double const ui_value = _controllable->user_to_ui (_controllable->get_value());
+	double const interface_value = _controllable->internal_to_interface (_controllable->get_value());
 
-	if (_adjustment->get_value() != ui_value) {
+	if (_adjustment->get_value () != interface_value) {
 		_ignore_change = true;
-		_adjustment->set_value (ui_value);
+		_adjustment->set_value (interface_value);
 		_ignore_change = false;
 	}
 }
@@ -108,7 +108,7 @@ void
 AutomationController::value_adjusted ()
 {
 	if (!_ignore_change) {
-		_controllable->set_value (_controllable->ui_to_user (_adjustment->get_value()));
+		_controllable->set_value (_controllable->interface_to_internal (_adjustment->get_value()));
 	}
 }
 

gtk2_ardour/generic_pluginui.cc

@@ -570,8 +570,8 @@ GenericPluginUI::build_control_ui (guint32 port_index, boost::shared_ptr<Automat
 		Adjustment* adj = control_ui->controller->adjustment();
 		boost::shared_ptr<PluginInsert::PluginControl> pc = boost::dynamic_pointer_cast<PluginInsert::PluginControl> (control_ui->control);
 
-		adj->set_lower (pc->user_to_ui (desc.lower));
-		adj->set_upper (pc->user_to_ui (desc.upper));
+		adj->set_lower (pc->internal_to_interface (desc.lower));
+		adj->set_upper (pc->internal_to_interface (desc.upper));
 
 		adj->set_step_increment (desc.step);
 		adj->set_page_increment (desc.largestep);
@@ -594,7 +594,7 @@ GenericPluginUI::build_control_ui (guint32 port_index, boost::shared_ptr<Automat
 
 		}
 
-		adj->set_value (pc->user_to_ui (plugin->get_parameter (port_index)));
+		adj->set_value (pc->internal_to_interface (plugin->get_parameter (port_index)));
 
 		/* XXX memory leak: SliderController not destroyed by ControlUI
 		   destructor, and manage() reports object hierarchy

gtk2_ardour/processor_box.cc

@@ -385,14 +385,14 @@ ProcessorEntry::Control::Control (Glib::RefPtr<Gdk::Pixbuf> s, boost::shared_ptr
 	_slider.show ();
 	box.pack_start (_slider);
 
-	double const lo = c->user_to_ui (c->lower ());
-	double const up = c->user_to_ui (c->upper ());
+	double const lo = c->internal_to_interface (c->lower ());
+	double const up = c->internal_to_interface (c->upper ());
 
 	_adjustment.set_lower (lo);
 	_adjustment.set_upper (up);
 	_adjustment.set_step_increment ((up - lo) / 100);
 	_adjustment.set_page_increment ((up - lo) / 10);
-	_slider.set_default_value (c->user_to_ui (c->normal ()));
+	_slider.set_default_value (c->internal_to_interface (c->normal ()));
 
 	_adjustment.signal_value_changed().connect (sigc::mem_fun (*this, &Control::slider_adjusted));
 	c->Changed.connect (_connection, MISSING_INVALIDATOR, boost::bind (&Control::control_changed, this), gui_context ());
@@ -419,7 +419,7 @@ ProcessorEntry::Control::slider_adjusted ()
 		return;
 	}
 
-	c->set_value (c->ui_to_user (_adjustment.get_value ()));
+	c->set_value (c->interface_to_internal (_adjustment.get_value ()));
 }
 
 void
@@ -432,14 +432,12 @@ ProcessorEntry::Control::control_changed ()
 
 	_ignore_slider_adjustment = true;
 
-	_adjustment.set_value (c->user_to_ui (c->get_value ()));
+	_adjustment.set_value (c->internal_to_interface (c->get_value ()));
 
-	/* XXX: general presentation of values to the user */
 	stringstream s;
 	s.precision (1);
 	s.setf (ios::fixed, ios::floatfield);
-	s << accurate_coefficient_to_dB (c->get_value ());
-	s << _("dB");
+	s << c->internal_to_user (c->get_value ());
 	
 	_slider.set_tooltip_text (s.str ());
 	

libs/ardour/amp.cc

@@ -423,23 +423,23 @@ Amp::GainControl::set_value (double val)
 }
 
 double
-Amp::GainControl::get_value (void) const
-{
-	return AutomationControl::get_value();
-}
-
-double
-Amp::GainControl::user_to_ui (double v) const
+Amp::GainControl::internal_to_interface (double v) const
 {
 	return gain_to_slider_position (v);
 }
 
 double
-Amp::GainControl::ui_to_user (double v) const
+Amp::GainControl::interface_to_internal (double v) const
 {
 	return slider_position_to_gain (v);
 }
 
+double
+Amp::GainControl::internal_to_user (double v) const
+{
+	return accurate_coefficient_to_dB (v);
+}
+
 void
 Amp::setup_gain_automation (framepos_t start_frame, framepos_t end_frame, framecnt_t nframes)
 {

libs/ardour/ardour/amp.h

@@ -82,10 +82,10 @@ public:
 		}
 
 		void set_value (double val);
-		double get_value (void) const;
 
-		double user_to_ui (double) const;
-		double ui_to_user (double) const;
+		double internal_to_interface (double) const;
+		double interface_to_internal (double) const;
+		double internal_to_user (double) const;
 
 		Amp* _amp;
 	};

libs/ardour/ardour/automation_control.h

@@ -77,6 +77,18 @@ public:
 	void set_value (double);
 	double get_value () const;
 
+	virtual double internal_to_interface (double v) const {
+		return v;
+	}
+	
+	virtual double interface_to_internal (double v) const {
+		return v;
+	}
+
+	virtual double internal_to_user (double v) const {
+		return v;
+	}
+
 	double lower() const { return parameter().min(); }
 	double upper() const { return parameter().max(); }
 	double normal() const { return parameter().normal(); }

libs/ardour/ardour/plugin_insert.h

@@ -89,8 +89,8 @@ class PluginInsert : public Processor
 		double get_value (void) const;
 		XMLNode& get_state();
 
-		double user_to_ui (double) const;
-		double ui_to_user (double) const;
+		double internal_to_interface (double) const;
+		double interface_to_internal (double) const;
 
 	private:
 		PluginInsert* _plugin;

libs/ardour/plugin_insert.cc

@@ -1174,7 +1174,7 @@ PluginInsert::PluginControl::set_value (double user_val)
 }
 
 double
-PluginInsert::PluginControl::user_to_ui (double val) const
+PluginInsert::PluginControl::internal_to_interface (double val) const
 {
 	if (_logarithmic) {
 		if (val > 0) {
@@ -1188,7 +1188,7 @@ PluginInsert::PluginControl::user_to_ui (double val) const
 }
 
 double
-PluginInsert::PluginControl::ui_to_user (double val) const
+PluginInsert::PluginControl::interface_to_internal (double val) const
 {
 	if (_logarithmic) {
 		val = exp (val);

libs/pbd/pbd/controllable.h

@@ -43,27 +43,27 @@ class Controllable : public PBD::StatefulDestructible {
 	Controllable (const std::string& name, Flag f = Flag (0));
 	virtual ~Controllable() { Destroyed (this); }
 
-	/* We express Controllable values in one of two ways:
-	 * 1. `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.
-	 * 2. `user' --- as passed to a plugin, and presented to the user.
+	/* 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 `user' value */
+	/** Set `internal' value */
 	virtual void set_value (double) = 0;
-	/** @return `user' value */
+	/** @return `internal' value */
 	virtual double get_value (void) const = 0;
 
-	virtual double user_to_ui (double v) const {
-		return v;
-	}
-
-	virtual double ui_to_user (double v) const {
-		return v;
-	}
-
 	PBD::Signal0<void> LearningFinished;
 	static PBD::Signal3<void,PBD::Controllable*,int,int> CreateBinding;
 	static PBD::Signal1<void,PBD::Controllable*> DeleteBinding;