From 3c1ffd17432d83dbe4a8088eddbbfd54e4dcf089 Mon Sep 17 00:00:00 2001
From: Paul Davis <paul@linuxaudiosystems.com>
Date: Fri, 14 May 2021 17:14:52 -0600
Subject: [PATCH] add line height API to Marker

This will allow region markers, which do not span the whole canvas height, to have a line
---
 gtk2_ardour/marker.cc | 10 +++++++++-
 gtk2_ardour/marker.h  |  2 ++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/gtk2_ardour/marker.cc b/gtk2_ardour/marker.cc
index 41840b7145..648a04587b 100644
--- a/gtk2_ardour/marker.cc
+++ b/gtk2_ardour/marker.cc
@@ -85,6 +85,7 @@ ArdourMarker::ArdourMarker (PublicEditor& ed, ArdourCanvas::Container& parent, g
 	, _left_label_limit (DBL_MAX)
 	, _right_label_limit (DBL_MAX)
 	, _label_offset (0)
+	, _line_height (-1)
 
 {
 
@@ -374,7 +375,7 @@ ArdourMarker::setup_line ()
 		_track_canvas_line->set_x0 (d.x);
 		_track_canvas_line->set_x1 (d.x);
 		_track_canvas_line->set_y0 (d.y);
-		_track_canvas_line->set_y1 (ArdourCanvas::COORD_MAX);
+		_track_canvas_line->set_y1 (_line_height > 0 ? _line_height : ArdourCanvas::COORD_MAX);
 		_track_canvas_line->set_outline_color ( _selected ? UIConfiguration::instance().color ("entered marker") : _color );
 		_track_canvas_line->raise_to_top ();
 		_track_canvas_line->show ();
@@ -392,6 +393,13 @@ ArdourMarker::the_item() const
 	return *group;
 }
 
+void
+ArdourMarker::set_line_height (double h)
+{
+	_line_height = h;
+	setup_line ();
+}
+
 void
 ArdourMarker::set_name (const string& new_name)
 {
diff --git a/gtk2_ardour/marker.h b/gtk2_ardour/marker.h
index 54c1534521..872bbe9bfb 100644
--- a/gtk2_ardour/marker.h
+++ b/gtk2_ardour/marker.h
@@ -78,6 +78,7 @@ public:
 
 	void set_selected (bool);
 	void set_show_line (bool);
+	void set_line_height (double);
 
 	void set_position (samplepos_t);
 	void set_name (const std::string&);
@@ -131,6 +132,7 @@ protected:
 	double       _left_label_limit; ///< the number of pixels available to the left of this marker for a label
 	double       _right_label_limit; ///< the number of pixels available to the right of this marker for a label
 	double       _label_offset;
+	double       _line_height;
 
 	void reposition ();
 	void setup_line_x ();