From ea1d138c9500f00d4387ee8eb8eb1fa047e8f721 Mon Sep 17 00:00:00 2001
From: Alessandro Ranellucci <aar@cpan.org>
Date: Thu, 29 Aug 2013 01:40:42 +0200
Subject: [PATCH] Ported ExtrusionLoop->make_counter_clockwise()

---
 lib/Slic3r/ExtrusionLoop.pm | 9 ---------
 xs/src/ExtrusionEntity.cpp  | 6 ++++++
 xs/src/ExtrusionEntity.hpp  | 1 +
 xs/xsp/ExtrusionLoop.xsp    | 1 +
 4 files changed, 8 insertions(+), 9 deletions(-)

diff --git a/lib/Slic3r/ExtrusionLoop.pm b/lib/Slic3r/ExtrusionLoop.pm
index 2cf90c8d54..57f380eece 100644
--- a/lib/Slic3r/ExtrusionLoop.pm
+++ b/lib/Slic3r/ExtrusionLoop.pm
@@ -13,13 +13,4 @@ sub split_at {
     );
 }
 
-sub make_counter_clockwise {
-    my $self = shift;
-    if (!$self->polygon->is_counter_clockwise) {
-        $self->reverse;
-        return 1;
-    }
-    return 0;
-}
-
 1;
diff --git a/xs/src/ExtrusionEntity.cpp b/xs/src/ExtrusionEntity.cpp
index fe857d2536..9c0012f541 100644
--- a/xs/src/ExtrusionEntity.cpp
+++ b/xs/src/ExtrusionEntity.cpp
@@ -41,4 +41,10 @@ ExtrusionLoop::split_at_first_point()
     return this->split_at_index(0);
 }
 
+bool
+ExtrusionLoop::make_counter_clockwise()
+{
+    return this->polygon.make_counter_clockwise();
+}
+
 }
diff --git a/xs/src/ExtrusionEntity.hpp b/xs/src/ExtrusionEntity.hpp
index 2302ad52b6..0f8f1cb2aa 100644
--- a/xs/src/ExtrusionEntity.hpp
+++ b/xs/src/ExtrusionEntity.hpp
@@ -48,6 +48,7 @@ class ExtrusionLoop : public ExtrusionEntity
     Polygon polygon;
     ExtrusionPath* split_at_index(int index);
     ExtrusionPath* split_at_first_point();
+    bool make_counter_clockwise();
 };
 
 }
diff --git a/xs/xsp/ExtrusionLoop.xsp b/xs/xsp/ExtrusionLoop.xsp
index 9bcd196a38..ecc117ef17 100644
--- a/xs/xsp/ExtrusionLoop.xsp
+++ b/xs/xsp/ExtrusionLoop.xsp
@@ -17,6 +17,7 @@
         %code{% const char* CLASS = "Slic3r::ExtrusionPath"; RETVAL = THIS->split_at_index(index); %};
     ExtrusionPath* split_at_first_point()
         %code{% const char* CLASS = "Slic3r::ExtrusionPath"; RETVAL = THIS->split_at_first_point(); %};
+    bool make_counter_clockwise();
 %{
 
 ExtrusionLoop*