canvas: extend PolyItem API with ::add_point()

2023-06-23 16:47:09 -06:00
parent 6ea7e8c8f4
commit 91500795d8
2 changed files with 10 additions and 0 deletions
--- a/libs/canvas/canvas/poly_item.h
+++ b/libs/canvas/canvas/poly_item.h
@@ -36,6 +36,7 @@ public:
 	virtual void compute_bounding_box () const;

 	virtual void  set (Points const&);
+	virtual void  add_point (Duple const &);
 	Points const& get () const;

 	void dump (std::ostream&) const;
--- a/libs/canvas/poly_item.cc
+++ b/libs/canvas/poly_item.cc
@@ -140,6 +140,15 @@ PolyItem::set (Points const& points)
 	}
 }

+void
+PolyItem::add_point (Duple const & d)
+{
+	begin_change ();
+	_points.push_back (d);
+	set_bbox_dirty ();
+	end_change ();
+}
+
 Points const&
 PolyItem::get () const
 {