+ } else {
+
+ box.pack_start (_label);
+ _label.show ();
+ _label.set_text (_name);
+ box.pack_start (_slider);
+ _slider.show ();
+
+ 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->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 ());
+ }
+
+ ARDOUR_UI::RapidScreenUpdate.connect (sigc::mem_fun (*this, &Control::control_changed));
+
+ control_changed ();
+ set_tooltip ();
+
+ /* We're providing our own PersistentTooltip */
+ set_no_tooltip_whatsoever (_slider);
+}
+
+void
+ProcessorEntry::Control::set_tooltip ()
+{
+ boost::shared_ptr<AutomationControl> c = _control.lock ();
+
+ if (!c) {
+ return;
+ }
+
+ stringstream s;
+ s << _name << ": ";
+ if (c->toggled ()) {
+ s << (c->get_value() > 0.5 ? _("on") : _("off"));
+ } else {
+ s << setprecision(2) << fixed;
+ s << c->internal_to_user (c->get_value ());
+ }
+
+ ARDOUR_UI::instance()->set_tip (_label, s.str ());
+ _slider_persistant_tooltip.set_tip (s.str ());
+ ARDOUR_UI::instance()->set_tip (_button, s.str ());
+}
+
+void
+ProcessorEntry::Control::set_pixel_width (int p)
+{
+ _slider.set_fader_length (p);
+}
+
+void
+ProcessorEntry::Control::slider_adjusted ()
+{
+ if (_ignore_ui_adjustment) {
+ return;
+ }
+
+ boost::shared_ptr<AutomationControl> c = _control.lock ();
+
+ if (!c) {
+ return;
+ }
+
+ c->set_value (c->interface_to_internal (_adjustment.get_value ()));
+ set_tooltip ();
+}
+
+void
+ProcessorEntry::Control::button_clicked ()
+{
+ boost::shared_ptr<AutomationControl> c = _control.lock ();
+
+ if (!c) {
+ return;
+ }
+
+ bool const n = _button.get_active ();
+
+ c->set_value (n ? 0 : 1);
+ _button.set_active (!n);
+}
+
+void
+ProcessorEntry::Control::control_changed ()
+{
+ boost::shared_ptr<AutomationControl> c = _control.lock ();
+ if (!c) {
+ return;
+ }
+
+ _ignore_ui_adjustment = true;
+
+ if (c->toggled ()) {
+
+ _button.set_active (c->get_value() > 0.5);
+
+ } else {
+
+ _adjustment.set_value (c->internal_to_interface (c->get_value ()));
+