From 9bbedcb781cdb7d1dad1ee01bfa99c328c2813c2 Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Fri, 10 Apr 2020 17:54:07 +0200
Subject: [PATCH] Remove unused function
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Cairo::curve_to renders cubic Bézier splines, those are not
generally useful in a DAW context.

Canvas::Curve implements centripetal catmull-rom spline drawing
which can be used for fades and automation interpolation.
---
 libs/canvas/canvas/poly_item.h |  1 -
 libs/canvas/poly_item.cc       | 37 ----------------------------------
 2 files changed, 38 deletions(-)

diff --git a/libs/canvas/canvas/poly_item.h b/libs/canvas/canvas/poly_item.h
index 25a832e571..3df13ff75f 100644
--- a/libs/canvas/canvas/poly_item.h
+++ b/libs/canvas/canvas/poly_item.h
@@ -42,7 +42,6 @@ public:
 
 protected:
 	void render_path (Rect const&, Cairo::RefPtr<Cairo::Context>) const;
-	void render_curve (Rect const&, Cairo::RefPtr<Cairo::Context>, Points const&, Points const&) const;
 
 	Points _points;
 
diff --git a/libs/canvas/poly_item.cc b/libs/canvas/poly_item.cc
index 3ea68c461d..dfd8bf0da9 100644
--- a/libs/canvas/poly_item.cc
+++ b/libs/canvas/poly_item.cc
@@ -129,43 +129,6 @@ PolyItem::interpolate_line (Duple& c0, Duple const& c1, Coord const x)
 	return true;
 }
 
-void
-PolyItem::render_curve (Rect const & area, Cairo::RefPtr<Cairo::Context> context, Points const & first_control_points, Points const & second_control_points) const
-{
-	if (_points.size() <= 2) {
-		render_path (area, context);
-		return;
-	}
-
-	Points::const_iterator cp1 = first_control_points.begin();
-	Points::const_iterator cp2 = second_control_points.begin();
-	Points::const_iterator p = _points.begin();
-	const double pixel_adjust = (_outline_width == 1.0 ? 0.5 : 0.0);
-
-	Duple c = item_to_window (Duple (p->x, p->y));
-	context->move_to (c.x + pixel_adjust, c.y + pixel_adjust);
-	++p;
-
-	while (p != _points.end()) {
-
-		Duple c1 = item_to_window (Duple (cp1->x, cp1->y));
-		Duple c2 = item_to_window (Duple (cp2->x, cp2->y));
-
-		c = item_to_window (Duple (p->x, p->y));
-
-		context->curve_to (c1.x + pixel_adjust,
-				   c1.y + pixel_adjust,
-				   c2.x + pixel_adjust,
-				   c2.y + pixel_adjust,
-				   c.x + pixel_adjust,
-				   c.y + pixel_adjust);
-
-		++cp1;
-		++cp2;
-		++p;
-	}
-}
-
 void
 PolyItem::set (Points const & points)
 {