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

---
 dom/svg/SVGEllipseElement.cpp | 153 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 153 insertions(+)
 create mode 100644 dom/svg/SVGEllipseElement.cpp

(limited to 'dom/svg/SVGEllipseElement.cpp')

diff --git a/dom/svg/SVGEllipseElement.cpp b/dom/svg/SVGEllipseElement.cpp
new file mode 100644
index 000000000..f841e9646
--- /dev/null
+++ b/dom/svg/SVGEllipseElement.cpp
@@ -0,0 +1,153 @@
+/* -*- 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/. */
+
+#include "mozilla/dom/SVGEllipseElement.h"
+#include "mozilla/dom/SVGEllipseElementBinding.h"
+#include "mozilla/gfx/2D.h"
+#include "mozilla/gfx/PathHelpers.h"
+#include "mozilla/RefPtr.h"
+
+NS_IMPL_NS_NEW_NAMESPACED_SVG_ELEMENT(Ellipse)
+
+using namespace mozilla::gfx;
+
+namespace mozilla {
+namespace dom {
+
+JSObject*
+SVGEllipseElement::WrapNode(JSContext *aCx, JS::Handle<JSObject*> aGivenProto)
+{
+  return SVGEllipseElementBinding::Wrap(aCx, this, aGivenProto);
+}
+
+nsSVGElement::LengthInfo SVGEllipseElement::sLengthInfo[4] =
+{
+  { &nsGkAtoms::cx, 0, nsIDOMSVGLength::SVG_LENGTHTYPE_NUMBER, SVGContentUtils::X },
+  { &nsGkAtoms::cy, 0, nsIDOMSVGLength::SVG_LENGTHTYPE_NUMBER, SVGContentUtils::Y },
+  { &nsGkAtoms::rx, 0, nsIDOMSVGLength::SVG_LENGTHTYPE_NUMBER, SVGContentUtils::X },
+  { &nsGkAtoms::ry, 0, nsIDOMSVGLength::SVG_LENGTHTYPE_NUMBER, SVGContentUtils::Y },
+};
+
+//----------------------------------------------------------------------
+// Implementation
+
+SVGEllipseElement::SVGEllipseElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo)
+  : SVGEllipseElementBase(aNodeInfo)
+{
+}
+
+//----------------------------------------------------------------------
+// nsIDOMNode methods
+
+NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGEllipseElement)
+
+//----------------------------------------------------------------------
+// nsIDOMSVGEllipseElement methods
+
+already_AddRefed<SVGAnimatedLength>
+SVGEllipseElement::Cx()
+{
+  return mLengthAttributes[CX].ToDOMAnimatedLength(this);
+}
+
+already_AddRefed<SVGAnimatedLength>
+SVGEllipseElement::Cy()
+{
+  return mLengthAttributes[CY].ToDOMAnimatedLength(this);
+}
+
+already_AddRefed<SVGAnimatedLength>
+SVGEllipseElement::Rx()
+{
+  return mLengthAttributes[RX].ToDOMAnimatedLength(this);
+}
+
+already_AddRefed<SVGAnimatedLength>
+SVGEllipseElement::Ry()
+{
+  return mLengthAttributes[RY].ToDOMAnimatedLength(this);
+}
+
+//----------------------------------------------------------------------
+// nsSVGElement methods
+
+/* virtual */ bool
+SVGEllipseElement::HasValidDimensions() const
+{
+  return mLengthAttributes[RX].IsExplicitlySet() &&
+         mLengthAttributes[RX].GetAnimValInSpecifiedUnits() > 0 &&
+         mLengthAttributes[RY].IsExplicitlySet() &&
+         mLengthAttributes[RY].GetAnimValInSpecifiedUnits() > 0;
+}
+
+nsSVGElement::LengthAttributesInfo
+SVGEllipseElement::GetLengthInfo()
+{
+  return LengthAttributesInfo(mLengthAttributes, sLengthInfo,
+                              ArrayLength(sLengthInfo));
+}
+
+//----------------------------------------------------------------------
+// nsSVGPathGeometryElement methods
+
+bool
+SVGEllipseElement::GetGeometryBounds(Rect* aBounds,
+                                     const StrokeOptions& aStrokeOptions,
+                                     const Matrix& aToBoundsSpace,
+                                     const Matrix* aToNonScalingStrokeSpace)
+{
+  float x, y, rx, ry;
+  GetAnimatedLengthValues(&x, &y, &rx, &ry, nullptr);
+
+  if (rx <= 0.f || ry <= 0.f) {
+    // Rendering of the element is disabled
+    *aBounds = Rect(aToBoundsSpace.TransformPoint(Point(x, y)), Size());
+    return true;
+  }
+
+  if (aToBoundsSpace.IsRectilinear()) {
+    // Optimize the case where we can treat the ellipse as a rectangle and
+    // still get tight bounds.
+    if (aStrokeOptions.mLineWidth > 0.f) {
+      if (aToNonScalingStrokeSpace) {
+        if (aToNonScalingStrokeSpace->IsRectilinear()) {
+          MOZ_ASSERT(!aToNonScalingStrokeSpace->IsSingular());
+          Rect userBounds(x - rx, y - ry, 2 * rx, 2 * ry);
+          SVGContentUtils::RectilinearGetStrokeBounds(
+            userBounds, aToBoundsSpace, *aToNonScalingStrokeSpace,
+            aStrokeOptions.mLineWidth, aBounds);
+          return true;
+        }
+        return false;
+      }
+      rx += aStrokeOptions.mLineWidth / 2.f;
+      ry += aStrokeOptions.mLineWidth / 2.f;
+    }
+    Rect rect(x - rx, y - ry, 2 * rx, 2 * ry);
+    *aBounds = aToBoundsSpace.TransformBounds(rect);
+    return true;
+  }
+
+  return false;
+}
+
+already_AddRefed<Path>
+SVGEllipseElement::BuildPath(PathBuilder* aBuilder)
+{
+  float x, y, rx, ry;
+  GetAnimatedLengthValues(&x, &y, &rx, &ry, nullptr);
+
+  if (rx <= 0.0f || ry <= 0.0f) {
+    return nullptr;
+  }
+
+  EllipseToBezier(aBuilder, Point(x, y), Size(rx, ry));
+
+  return aBuilder->Finish();
+}
+
+} // namespace dom
+} // namespace mozilla
-- 
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