From 94adde7ebb915b36c2507e5da1bd38884167eddc Mon Sep 17 00:00:00 2001
From: Paul Davis <paul@linuxaudiosystems.com>
Date: Fri, 5 Sep 2014 14:45:27 -0400
Subject: [PATCH] add Canvas::Ruler::set_metric() to allow ruler metrics to be
 changed dynamically

---
 libs/canvas/canvas/ruler.h | 1 +
 libs/canvas/ruler.cc       | 8 ++++++++
 2 files changed, 9 insertions(+)

diff --git a/libs/canvas/canvas/ruler.h b/libs/canvas/canvas/ruler.h
index 995b311e64..56876e761b 100644
--- a/libs/canvas/canvas/ruler.h
+++ b/libs/canvas/canvas/ruler.h
@@ -62,6 +62,7 @@ public:
 	
 	void set_range (double lower, double upper);
 	void set_font_description (Pango::FontDescription);
+	void set_metric (const Metric&);
 
 	void render (Rect const & area, Cairo::RefPtr<Cairo::Context>) const;
 	
diff --git a/libs/canvas/ruler.cc b/libs/canvas/ruler.cc
index 907fc93e99..b11793cb7f 100644
--- a/libs/canvas/ruler.cc
+++ b/libs/canvas/ruler.cc
@@ -180,3 +180,11 @@ Ruler::render (Rect const & area, Cairo::RefPtr<Cairo::Context> cr) const
 
 	/* done! */
 }
+
+void
+Ruler::set_metric (const Metric& m)
+{
+        _metric = &m;
+        _need_marks = true;
+        redraw ();
+}