1 files changed, 118 insertions, 0 deletions
diff --git a/dom/svg/SVGPoint.h b/dom/svg/SVGPoint.h
new file mode 100644
index 000000000..2f3b74c4a
--- /dev/null
+++ b/dom/svg/SVGPoint.h
@@ -0,0 +1,118 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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/. */
+
+#ifndef MOZILLA_SVGPOINT_H__
+#define MOZILLA_SVGPOINT_H__
+
+#include "nsDebug.h"
+#include "gfxPoint.h"
+#include "mozilla/gfx/Point.h"
+#include "mozilla/FloatingPoint.h"
+
+namespace mozilla {
+
+/**
+ * This class is currently used for point list attributes.
+ *
+ * The DOM wrapper class for this class is DOMSVGPoint.
+ */
+class SVGPoint
+{
+  typedef mozilla::gfx::Point Point;
+
+public:
+
+  SVGPoint()
+    : mX(0.0f)
+    , mY(0.0f)
+  {}
+
+  SVGPoint(float aX, float aY)
+    : mX(aX)
+    , mY(aY)
+  {
+    NS_ASSERTION(IsValid(), "Constructed an invalid SVGPoint");
+  }
+
+  SVGPoint(const SVGPoint &aOther)
+    : mX(aOther.mX)
+    , mY(aOther.mY)
+  {}
+
+  SVGPoint& operator=(const SVGPoint &rhs) {
+    mX = rhs.mX;
+    mY = rhs.mY;
+    return *this;
+  }
+
+  bool operator==(const SVGPoint &rhs) const {
+    return mX == rhs.mX && mY == rhs.mY;
+  }
+
+  SVGPoint& operator+=(const SVGPoint &rhs) {
+    mX += rhs.mX;
+    mY += rhs.mY;
+    return *this;
+  }
+
+  operator gfxPoint() const {
+    return gfxPoint(mX, mY);
+  }
+
+  operator Point() const {
+    return Point(mX, mY);
+  }
+
+#ifdef DEBUG
+  bool IsValid() const {
+    return IsFinite(mX) && IsFinite(mY);
+  }
+#endif
+
+  void SetX(float aX)
+    { mX = aX; }
+  void SetY(float aY)
+    { mY = aY; }
+  float GetX() const
+    { return mX; }
+  float GetY() const
+    { return mY; }
+
+  bool operator!=(const SVGPoint &rhs) const {
+    return mX != rhs.mX || mY != rhs.mY;
+  }
+
+  float mX;
+  float mY;
+};
+
+inline SVGPoint operator+(const SVGPoint& aP1,
+                          const SVGPoint& aP2)
+{
+  return SVGPoint(aP1.mX + aP2.mX, aP1.mY + aP2.mY);
+}
+
+inline SVGPoint operator-(const SVGPoint& aP1,
+                          const SVGPoint& aP2)
+{
+  return SVGPoint(aP1.mX - aP2.mX, aP1.mY - aP2.mY);
+}
+
+inline SVGPoint operator*(float aFactor,
+                          const SVGPoint& aPoint)
+{
+  return SVGPoint(aFactor * aPoint.mX, aFactor * aPoint.mY);
+}
+
+inline SVGPoint operator*(const SVGPoint& aPoint,
+                          float aFactor)
+{
+  return SVGPoint(aFactor * aPoint.mX, aFactor * aPoint.mY);
+}
+
+} // namespace mozilla
+
+#endif // MOZILLA_SVGPOINT_H__