arrangement ruler: create Section marker type, so we can customize it a bit

gtk2_ardour/editor_drag.cc

@@ -4520,6 +4520,7 @@ MarkerDrag::motion (GdkEvent* event, bool)
 			} else {
 				switch (_marker->type ()) {
 					case ArdourMarker::SessionStart:
+					case ArdourMarker::Section:
 					case ArdourMarker::RangeStart:
 					case ArdourMarker::LoopStart:
 					case ArdourMarker::PunchIn:

gtk2_ardour/editor_markers.cc

@@ -133,7 +133,7 @@ Editor::add_new_location_internal (Location* location)
 			lam->start->set_cue_index(location->cue_id());
 			group = cue_marker_group;
 		} else if (location->is_section()) {
-			lam->start = new ArdourMarker (*this, *section_marker_group, color, location->name(), ArdourMarker::Mark, location->start());
+			lam->start = new ArdourMarker (*this, *section_marker_group, color, location->name(), ArdourMarker::Section, location->start());
 			group = section_marker_group;
 		} else {
 			lam->start = new ArdourMarker (*this, *marker_group, color, location->name(), ArdourMarker::Mark, location->start());

gtk2_ardour/marker.cc

@@ -235,6 +235,16 @@ ArdourMarker::ArdourMarker (PublicEditor& ed, ArdourCanvas::Item& parent, std::s
 		_label_offset = 8.0 * scale;
 		break;
 
+	case Section:
+		points = new ArdourCanvas::Points (); //unused
+		points->push_back (ArdourCanvas::Duple (    0.0, 0.0));
+		points->push_back (ArdourCanvas::Duple (M6 + .5, MH * .5));
+		points->push_back (ArdourCanvas::Duple (    0.0, MH));
+		points->push_back (ArdourCanvas::Duple (    0.0, 0.0));
+
+		_shift = 0 * scale;
+		_label_offset = 4.0 * scale;
+		break;
 
 	case PunchOut: /* fallthrough */
 	case LoopEnd: /* fallthrough */
@@ -331,6 +341,13 @@ ArdourMarker::ArdourMarker (PublicEditor& ed, ArdourCanvas::Item& parent, std::s
 			_pcue->hide();
 			_pmark->show();
 			break;
+		case Section:
+			_pmark->hide();
+			_pcue->hide();
+			if (_name_flag) {
+				_name_flag->show();
+			}
+			break;
 		case Cue:
 			_pcue->set_outline(false);
 			_pcue->set_fill(true);
@@ -365,7 +382,11 @@ ArdourMarker::ArdourMarker (PublicEditor& ed, ArdourCanvas::Item& parent, std::s
 	_name_item->set_font_description (name_font);
 	_name_item->set_color (RGBA_TO_UINT (0,0,0,255));
 
-	_name_item->set_position (ArdourCanvas::Duple (_label_offset, floor (.5 * (name_height - name_descent - .5))));
+	if (_type==Section) {
+		_name_item->set_position (ArdourCanvas::Duple (_label_offset, 0.5 * marker_height - ceil (.5 * (name_height))));
+	} else {
+		_name_item->set_position (ArdourCanvas::Duple (_label_offset, floor (.5 * (name_height - name_descent - .5))));
+	}
 
 	apply_color ();
 
@@ -551,6 +572,11 @@ ArdourMarker::setup_name_display ()
 	pixel_size (_name, name_font, name_width, name_height);
 	name_width = min ((double) name_width + padding, limit);
 
+	if (_name_flag) {
+		_name_flag->set_y0 (0);
+		_name_flag->set_y1 (marker_height - padding);
+	}
+
 	if (name_width == 0) {
 		_name_item->hide ();
 	} else {
@@ -605,6 +631,11 @@ ArdourMarker::setup_name_display ()
 					_name_flag->set_x0 (M3);
 					_name_flag->set_x1 (_name_item->position().x + name_width + padding + 1*scale);
 					break;
+				case Section:
+					_name_flag->set_x0 (0);
+					_name_flag->set_x1 (_name_item->position().x + name_width + padding);
+					_name_flag->set_y1 (marker_height);  //full height
+					break;
 				default:
 					_name_flag->set_x0 (0);
 					_name_flag->set_x1 (_name_item->position().x + name_width + padding);
@@ -613,11 +644,6 @@ ArdourMarker::setup_name_display ()
 			}
 		}
 	}
-
-	if (_name_flag) {
-		_name_flag->set_y0 (0);
-		_name_flag->set_y1 (marker_height - padding);
-	}
 }
 
 void

gtk2_ardour/marker.h

@@ -62,6 +62,7 @@ public:
 		BBTPosition,
 		SessionStart, ///< session start
 		SessionEnd,   ///< session end
+		Section,
 		RangeStart,
 		RangeEnd,
 		LoopStart,