From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001
From: "Matt A. Tobin" <mattatobin@localhost.localdomain>
Date: Fri, 2 Feb 2018 04:16:08 -0500
Subject: Add m-esr52 at 52.6.0

---
 gfx/src/nsTransform2D.cpp | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 gfx/src/nsTransform2D.cpp

(limited to 'gfx/src/nsTransform2D.cpp')

diff --git a/gfx/src/nsTransform2D.cpp b/gfx/src/nsTransform2D.cpp
new file mode 100644
index 000000000..becea4392
--- /dev/null
+++ b/gfx/src/nsTransform2D.cpp
@@ -0,0 +1,23 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+
+#include "nsTransform2D.h"
+
+void nsTransform2D :: TransformCoord(nscoord *ptX, nscoord *ptY) const
+{
+  *ptX = NSToCoordRound(*ptX * m00 + m20);
+  *ptY = NSToCoordRound(*ptY * m11 + m21);
+}
+
+void nsTransform2D :: TransformCoord(nscoord *aX, nscoord *aY, nscoord *aWidth, nscoord *aHeight) const
+{
+  nscoord x2 = *aX + *aWidth;
+  nscoord y2 = *aY + *aHeight;
+  TransformCoord(aX, aY);
+  TransformCoord(&x2, &y2);
+  *aWidth = x2 - *aX;
+  *aHeight = y2 - *aY;
+}
-- 
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