From 5020931ffa03b676af60d00bafffc1dfe37708e9 Mon Sep 17 00:00:00 2001
From: Nicola Fontana <ntd@entidi.it>
Date: Fri, 12 Jun 2009 19:43:32 +0200
Subject: [PATCH] [CpmlCurve] Added placeholder for curve-arc intersection API

Actually the function does nothing but it is required to be defined
by the CpmlPrimitive dispatching function.
---
 cpml/cpml-curve.c | 27 +++++++++++++++++++++++++++
 cpml/cpml-curve.h |  3 +++
 2 files changed, 30 insertions(+)

diff --git a/cpml/cpml-curve.c b/cpml/cpml-curve.c
index c1c8df55..c411bfc8 100644
--- a/cpml/cpml-curve.c
+++ b/cpml/cpml-curve.c
@@ -235,6 +235,33 @@ cpml_curve_intersection_with_line(const CpmlPrimitive *curve,
 }
 
 /**
+ * cpml_curve_intersection_with_arc:
+ * @curve: a curve
+ * @arc:   an arc
+ * @dest:  a vector of at least 4 #CpmlPair
+ *
+ * Given a Bézier cubic @curve and an @arc, gets their intersection
+ * points and store the result in @dest. Because an arc and a cubic
+ * curve can have up to 4 intersections, @dest MUST be at least an
+ * array of 4 #CpmlPair.
+ *
+ * <important>
+ * <title>TODO</title>
+ * <itemizedlist>
+ * <listitem>To be implemented...</listitem>
+ * </itemizedlist>
+ * </important>
+ *
+ * Return value: the number of intersections (max 4)
+ **/
+int
+cpml_curve_intersection_with_arc(const CpmlPrimitive *curve,
+                                 const CpmlPrimitive *arc, CpmlPair *dest)
+{
+    return 0;
+}
+
+/**
  * cpml_curve_offset:
  * @curve:  the #CpmlPrimitive curve data
  * @offset: distance for the computed parallel curve
diff --git a/cpml/cpml-curve.h b/cpml/cpml-curve.h
index 584a1120..c82bfc09 100644
--- a/cpml/cpml-curve.h
+++ b/cpml/cpml-curve.h
@@ -46,6 +46,9 @@ int     cpml_curve_intersection_with_line
                                         (const CpmlPrimitive    *curve,
                                          const CpmlPrimitive    *line,
                                          CpmlPair               *dest);
+int     cpml_curve_intersection_with_arc(const CpmlPrimitive    *curve,
+                                         const CpmlPrimitive    *arc,
+                                         CpmlPair               *dest);
 void    cpml_curve_offset               (CpmlPrimitive          *curve,
                                          double                  offset);
 
-- 
2.11.4.GIT