1 files changed, 32 insertions, 0 deletions
diff --git a/src/horizontal_position.cc b/src/horizontal_position.cc
new file mode 100644
index 0000000..11ccb6e
--- /dev/null
+++ b/src/horizontal_position.cc
@@ -0,0 +1,32 @@
+/*
+    Copyright (C) 2017 Carl Hetherington <cth@carlh.net>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#include "horizontal_position.h"
+#include <iostream>
+#include <cmath>
+
+using std::fabs;
+using namespace sub;
+
+bool
+HorizontalPosition::operator== (HorizontalPosition const & other) const
+{
+	/* Position is the same if it's less than 1 pixel at 2K */
+	return reference == other.reference && fabs(proportional - other.proportional) < (1.0 / 1998);
+}