From 46157b2030c75112ee8cf70eba6a03c3fe21bbc0 Mon Sep 17 00:00:00 2001
From: Florian Festi <florian@festi.info>
Date: Sat, 11 May 2019 17:17:11 +0200
Subject: [PATCH] Add .mirrorX() and .mirrorY() wrappers

These are especially useful for warpping callbacks.
---
 boxes/__init__.py | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/boxes/__init__.py b/boxes/__init__.py
index e372f4a..a9744db 100755
--- a/boxes/__init__.py
+++ b/boxes/__init__.py
@@ -2032,3 +2032,29 @@ class Boxes:
             kw["move"] = "right only"
             for i in range(width):
                 part(*l, **kw)
+
+    def mirrorX(self, f, offset=0.0):
+        """Wrap a function to draw mirrored at the y axis
+
+        :param f: function to wrap
+        :param offset: (default value = 0.0) axis to mirror at
+        """
+        def r():
+            self.moveTo(offset, 0)
+            with self.saved_context():
+                self.ctx.scale(-1, 1)
+                f()
+        return r
+
+    def mirrorY(self, f, offset=0.0):
+        """Wrap a function to draw mirrored at the x axis
+
+        :param f: function to wrap
+        :param offset: (default value = 0.0) axis to mirror at
+        """
+        def r():
+            self.moveTo(0, offset)
+            with self.saved_context():
+                self.ctx.scale(1, -1)
+                f()
+        return r