dom/svg/SVGPolylineElement.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #include "mozilla/dom/SVGPolylineElement.h"
   8 #include "mozilla/dom/SVGPolylineElementBinding.h"
   9 #include "mozilla/dom/SVGAnimatedLength.h"
  10 #include "mozilla/gfx/2D.h"
  11
  12 using namespace mozilla::gfx;
  13
  14 NS_IMPL_NS_NEW_SVG_ELEMENT(Polyline)
  15
  16 namespace mozilla::dom {
  17
  18 JSObject* SVGPolylineElement::WrapNode(JSContext* aCx,
  19                                        JS::Handle<JSObject*> aGivenProto) {
  20   return SVGPolylineElement_Binding::Wrap(aCx, this, aGivenProto);
  21 }
  22
  23 //----------------------------------------------------------------------
  24 // Implementation
  25
  26 SVGPolylineElement::SVGPolylineElement(
  27     already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo)
  28     : SVGPolylineElementBase(std::move(aNodeInfo)) {}
  29
  30 //----------------------------------------------------------------------
  31 // nsINode methods
  32
  33 NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGPolylineElement)
  34
  35 //----------------------------------------------------------------------
  36 // SVGGeometryElement methods
  37
  38 already_AddRefed<Path> SVGPolylineElement::BuildPath(PathBuilder* aBuilder) {
  39   const SVGPointList& points = mPoints.GetAnimValue();
  40
  41   if (points.IsEmpty()) {
  42     return nullptr;
  43   }
  44
  45   float zoom = UserSpaceMetrics::GetZoom(this);
  46
  47   aBuilder->MoveTo(points[0] * zoom);
  48   for (uint32_t i = 1; i < points.Length(); ++i) {
  49     aBuilder->LineTo(points[i] * zoom);
  50   }
  51
  52   return aBuilder->Finish();
  53 }
  54
  55 }  // namespace mozilla::dom