change Controllable::set_value() API to include grouped control consideration.

This also removes Route::group_gain_control() and associated machinery.
Not yet tested with Mackie or other surfaces. More work to done to
start using the group capabilities, and also potentially to add
or derive more controls as RouteAutomationControls

1 files changed, 31 insertions, 29 deletions

diff --git a/gtk2_ardour/stereo_panner.cc b/gtk2_ardour/stereo_panner.cc
index 91c8b025ac..304300fcdb 100644
--- a/gtk2_ardour/stereo_panner.cc
+++ b/gtk2_ardour/stereo_panner.cc
@@ -52,6 +52,8 @@ using namespace Gtk;
 using namespace Gtkmm2ext;
 using namespace ARDOUR_UI_UTILS;
 
+using PBD::Controllable;
+
 StereoPanner::ColorScheme StereoPanner::colors[3];
 bool StereoPanner::have_colors = false;
 
@@ -355,21 +357,21 @@ StereoPanner::on_button_press_event (GdkEventButton* ev)
 				/* left side dbl click */
 				if (Keyboard::modifier_state_contains (ev->state, Keyboard::SecondaryModifier)) {
 					/* 2ndary-double click on left, collapse to hard left */
-					width_control->set_value (0);
-					position_control->set_value (0);
+					width_control->set_value (0, Controllable::NoGroup);
+					position_control->set_value (0, Controllable::NoGroup);
 				} else {
-					position_control->set_value (min_pos);
+					position_control->set_value (min_pos, Controllable::NoGroup);
 				}
 			} else if (ev->x > 2*width/3) {
 				if (Keyboard::modifier_state_contains (ev->state, Keyboard::SecondaryModifier)) {
 					/* 2ndary-double click on right, collapse to hard right */
-					width_control->set_value (0);
-					position_control->set_value (1.0);
+					width_control->set_value (0, Controllable::NoGroup);
+					position_control->set_value (1.0, Controllable::NoGroup);
 				} else {
-					position_control->set_value (max_pos);
+					position_control->set_value (max_pos, Controllable::NoGroup);
 				}
 			} else {
-				position_control->set_value (0.5);
+				position_control->set_value (0.5, Controllable::NoGroup);
 			}
 
 		} else {
@@ -381,13 +383,13 @@ StereoPanner::on_button_press_event (GdkEventButton* ev)
 
 			if (ev->x <= width/3) {
 				/* left side dbl click */
-				width_control->set_value (max_width); // reset width to 100%
+				width_control->set_value (max_width, Controllable::NoGroup); // reset width to 100%
 			} else if (ev->x > 2*width/3) {
 				/* right side dbl click */
-				width_control->set_value (-max_width); // reset width to inverted 100%
+				width_control->set_value (-max_width, Controllable::NoGroup); // reset width to inverted 100%
 			} else {
 				/* center dbl click */
-				width_control->set_value (0); // collapse width to 0%
+				width_control->set_value (0, Controllable::NoGroup); // collapse width to 0%
 			}
 		}
 
@@ -500,19 +502,19 @@ StereoPanner::on_scroll_event (GdkEventScroll* ev)
 	switch (ev->direction) {
 	case GDK_SCROLL_LEFT:
 		wv += step;
-		width_control->set_value (wv);
+		width_control->set_value (wv, Controllable::NoGroup);
 		break;
 	case GDK_SCROLL_UP:
 		pv -= step;
-		position_control->set_value (pv);
+		position_control->set_value (pv, Controllable::NoGroup);
 		break;
 	case GDK_SCROLL_RIGHT:
 		wv -= step;
-		width_control->set_value (wv);
+		width_control->set_value (wv, Controllable::NoGroup);
 		break;
 	case GDK_SCROLL_DOWN:
 		pv += step;
-		position_control->set_value (pv);
+		position_control->set_value (pv, Controllable::NoGroup);
 		break;
 	}
 
@@ -551,9 +553,9 @@ StereoPanner::on_motion_notify_event (GdkEventMotion* ev)
 			double pv = position_control->get_value();
 
 			if (dragging_left) {
-				position_control->set_value (pv - delta);
+				position_control->set_value (pv - delta, Controllable::NoGroup);
 			} else {
-				position_control->set_value (pv + delta);
+				position_control->set_value (pv + delta, Controllable::NoGroup);
 			}
 
 			if (delta > 0.0) {
@@ -563,9 +565,9 @@ StereoPanner::on_motion_notify_event (GdkEventMotion* ev)
 				   other side remains in place when we set
 				   the position as well.
 				*/
-				width_control->set_value (current_width + (delta * 2.0));
+				width_control->set_value (current_width + (delta * 2.0), Controllable::NoGroup);
 			} else {
-				width_control->set_value (current_width + delta);
+				width_control->set_value (current_width + delta, Controllable::NoGroup);
 			}
 
 			_panner->thaw ();
@@ -579,7 +581,7 @@ StereoPanner::on_motion_notify_event (GdkEventMotion* ev)
 			if (!detented && fabs (current_width) < 0.02) {
 				detented = true;
 				/* snap to zero */
-				width_control->set_value (0);
+				width_control->set_value (0, Controllable::NoGroup);
 			}
 
 			if (detented) {
@@ -589,21 +591,21 @@ StereoPanner::on_motion_notify_event (GdkEventMotion* ev)
 				/* have we pulled far enough to escape ? */
 
 				if (fabs (accumulated_delta) >= 0.025) {
-					width_control->set_value (current_width + accumulated_delta);
+					width_control->set_value (current_width + accumulated_delta, Controllable::NoGroup);
 					detented = false;
 					accumulated_delta = false;
 				}
 
 			} else {
 				/* width needs to change by 2 * delta because both L & R move */
-				width_control->set_value (current_width + (delta * 2.0));
+				width_control->set_value (current_width + (delta * 2.0), Controllable::NoGroup);
 			}
 		}
 
 	} else if (dragging_position) {
 
 		double pv = position_control->get_value(); // 0..1.0 ; 0 = left
-		position_control->set_value (pv + delta);
+		position_control->set_value (pv + delta, Controllable::NoGroup);
 	}
 
 	last_drag_x = ev->x;
@@ -635,30 +637,30 @@ StereoPanner::on_key_press_event (GdkEventKey* ev)
 	switch (ev->keyval) {
 	case GDK_Up:
 		if (Keyboard::modifier_state_equals (ev->state, Keyboard::SecondaryModifier)) {
-			width_control->set_value (1.0);
+			width_control->set_value (1.0, Controllable::NoGroup);
 		} else {
-			width_control->set_value (wv + step);
+			width_control->set_value (wv + step, Controllable::NoGroup);
 		}
 		break;
 	case GDK_Down:
 		if (Keyboard::modifier_state_equals (ev->state, Keyboard::SecondaryModifier)) {
-			width_control->set_value (-1.0);
+			width_control->set_value (-1.0, Controllable::NoGroup);
 		} else {
-			width_control->set_value (wv - step);
+			width_control->set_value (wv - step, Controllable::NoGroup);
 		}
 		break;
 
 	case GDK_Left:
 		pv -= step;
-		position_control->set_value (pv);
+		position_control->set_value (pv, Controllable::NoGroup);
 		break;
 	case GDK_Right:
 		pv += step;
-		position_control->set_value (pv);
+		position_control->set_value (pv, Controllable::NoGroup);
 		break;
 	case GDK_0:
 	case GDK_KP_0:
-		width_control->set_value (0.0);
+		width_control->set_value (0.0, Controllable::NoGroup);
 		break;
 
 	default: