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-rw-r--r--dom/svg/SVGPolygonElement.cpp77
1 files changed, 77 insertions, 0 deletions
diff --git a/dom/svg/SVGPolygonElement.cpp b/dom/svg/SVGPolygonElement.cpp
new file mode 100644
index 0000000000..def8015153
--- /dev/null
+++ b/dom/svg/SVGPolygonElement.cpp
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+/* -*- 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/SVGPolygonElement.h"
+#include "mozilla/dom/SVGPolygonElementBinding.h"
+#include "mozilla/gfx/2D.h"
+#include "SVGContentUtils.h"
+
+using namespace mozilla::gfx;
+
+NS_IMPL_NS_NEW_SVG_ELEMENT(Polygon)
+
+namespace mozilla::dom {
+
+JSObject* SVGPolygonElement::WrapNode(JSContext* aCx,
+ JS::Handle<JSObject*> aGivenProto) {
+ return SVGPolygonElement_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+//----------------------------------------------------------------------
+// Implementation
+
+SVGPolygonElement::SVGPolygonElement(
+ already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo)
+ : SVGPolygonElementBase(std::move(aNodeInfo)) {}
+
+//----------------------------------------------------------------------
+// nsINode methods
+
+NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGPolygonElement)
+
+//----------------------------------------------------------------------
+// SVGGeometryElement methods
+
+void SVGPolygonElement::GetMarkPoints(nsTArray<SVGMark>* aMarks) {
+ SVGPolyElement::GetMarkPoints(aMarks);
+
+ if (aMarks->IsEmpty() || aMarks->LastElement().type != SVGMark::eEnd) {
+ return;
+ }
+
+ SVGMark* endMark = &aMarks->LastElement();
+ SVGMark* startMark = &aMarks->ElementAt(0);
+ float angle =
+ std::atan2(startMark->y - endMark->y, startMark->x - endMark->x);
+
+ endMark->type = SVGMark::eMid;
+ endMark->angle = SVGContentUtils::AngleBisect(angle, endMark->angle);
+ startMark->angle = SVGContentUtils::AngleBisect(angle, startMark->angle);
+ // for a polygon (as opposed to a polyline) there's an implicit extra point
+ // co-located with the start point that SVGPolyElement::GetMarkPoints
+ // doesn't return
+ aMarks->AppendElement(
+ SVGMark(startMark->x, startMark->y, startMark->angle, SVGMark::eEnd));
+}
+
+already_AddRefed<Path> SVGPolygonElement::BuildPath(PathBuilder* aBuilder) {
+ const SVGPointList& points = mPoints.GetAnimValue();
+
+ if (points.IsEmpty()) {
+ return nullptr;
+ }
+
+ aBuilder->MoveTo(points[0]);
+ for (uint32_t i = 1; i < points.Length(); ++i) {
+ aBuilder->LineTo(points[i]);
+ }
+
+ aBuilder->Close();
+
+ return aBuilder->Finish();
+}
+
+} // namespace mozilla::dom