From 0aafead2353886dbcbba5131aabca9583465624e Mon Sep 17 00:00:00 2001
From: "Helmut.Neemann" <helmut.neemann@arcor.de>
Date: Wed, 11 May 2016 14:04:35 +0200
Subject: [PATCH] added runtime errors at append and reverse of bezier polygons

---
 src/main/java/de/neemann/digital/draw/graphics/Polygon.java | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/main/java/de/neemann/digital/draw/graphics/Polygon.java b/src/main/java/de/neemann/digital/draw/graphics/Polygon.java
index 5aaf83870..f213bfa2a 100644
--- a/src/main/java/de/neemann/digital/draw/graphics/Polygon.java
+++ b/src/main/java/de/neemann/digital/draw/graphics/Polygon.java
@@ -166,6 +166,8 @@ public class Polygon implements Iterable<Vector> {
      * @return this for chained calls
      */
     public Polygon append(Polygon p2) {
+        if (!p2.isBezierStart.isEmpty())
+            throw new RuntimeException("append of bezier not supported");
         for (int i = 1; i < p2.points.size(); i++)
             points.add(p2.points.get(i));
         return this;
@@ -177,6 +179,8 @@ public class Polygon implements Iterable<Vector> {
      * @return returns this polygon with reverse order of points
      */
     public Polygon reverse() {
+        if (!isBezierStart.isEmpty())
+            throw new RuntimeException("reverse of bezier not supported");
         Polygon p = new Polygon(closed);
         for (int i = points.size() - 1; i >= 0; i--)
             p.add(points.get(i));