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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /dom/svg/SVGRectElement.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'dom/svg/SVGRectElement.cpp')
-rw-r--r--dom/svg/SVGRectElement.cpp238
1 files changed, 238 insertions, 0 deletions
diff --git a/dom/svg/SVGRectElement.cpp b/dom/svg/SVGRectElement.cpp
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+++ b/dom/svg/SVGRectElement.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/SVGRectElement.h"
+#include "nsGkAtoms.h"
+#include "mozilla/dom/SVGRectElementBinding.h"
+#include "mozilla/gfx/2D.h"
+#include "mozilla/gfx/Matrix.h"
+#include "mozilla/gfx/Rect.h"
+#include "mozilla/gfx/PathHelpers.h"
+#include <algorithm>
+
+NS_IMPL_NS_NEW_NAMESPACED_SVG_ELEMENT(Rect)
+
+using namespace mozilla::gfx;
+
+namespace mozilla {
+namespace dom {
+
+class SVGAnimatedLength;
+
+JSObject*
+SVGRectElement::WrapNode(JSContext *aCx, JS::Handle<JSObject*> aGivenProto)
+{
+ return SVGRectElementBinding::Wrap(aCx, this, aGivenProto);
+}
+
+nsSVGElement::LengthInfo SVGRectElement::sLengthInfo[6] =
+{
+ { &nsGkAtoms::x, 0, nsIDOMSVGLength::SVG_LENGTHTYPE_NUMBER, SVGContentUtils::X },
+ { &nsGkAtoms::y, 0, nsIDOMSVGLength::SVG_LENGTHTYPE_NUMBER, SVGContentUtils::Y },
+ { &nsGkAtoms::width, 0, nsIDOMSVGLength::SVG_LENGTHTYPE_NUMBER, SVGContentUtils::X },
+ { &nsGkAtoms::height, 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
+
+SVGRectElement::SVGRectElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo)
+ : SVGRectElementBase(aNodeInfo)
+{
+}
+
+//----------------------------------------------------------------------
+// nsIDOMNode methods
+
+NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGRectElement)
+
+//----------------------------------------------------------------------
+
+already_AddRefed<SVGAnimatedLength>
+SVGRectElement::X()
+{
+ return mLengthAttributes[ATTR_X].ToDOMAnimatedLength(this);
+}
+
+already_AddRefed<SVGAnimatedLength>
+SVGRectElement::Y()
+{
+ return mLengthAttributes[ATTR_Y].ToDOMAnimatedLength(this);
+}
+
+already_AddRefed<SVGAnimatedLength>
+SVGRectElement::Width()
+{
+ return mLengthAttributes[ATTR_WIDTH].ToDOMAnimatedLength(this);
+}
+
+already_AddRefed<SVGAnimatedLength>
+SVGRectElement::Height()
+{
+ return mLengthAttributes[ATTR_HEIGHT].ToDOMAnimatedLength(this);
+}
+
+already_AddRefed<SVGAnimatedLength>
+SVGRectElement::Rx()
+{
+ return mLengthAttributes[ATTR_RX].ToDOMAnimatedLength(this);
+}
+
+already_AddRefed<SVGAnimatedLength>
+SVGRectElement::Ry()
+{
+ return mLengthAttributes[ATTR_RY].ToDOMAnimatedLength(this);
+}
+
+//----------------------------------------------------------------------
+// nsSVGElement methods
+
+/* virtual */ bool
+SVGRectElement::HasValidDimensions() const
+{
+ return mLengthAttributes[ATTR_WIDTH].IsExplicitlySet() &&
+ mLengthAttributes[ATTR_WIDTH].GetAnimValInSpecifiedUnits() > 0 &&
+ mLengthAttributes[ATTR_HEIGHT].IsExplicitlySet() &&
+ mLengthAttributes[ATTR_HEIGHT].GetAnimValInSpecifiedUnits() > 0;
+}
+
+nsSVGElement::LengthAttributesInfo
+SVGRectElement::GetLengthInfo()
+{
+ return LengthAttributesInfo(mLengthAttributes, sLengthInfo,
+ ArrayLength(sLengthInfo));
+}
+
+//----------------------------------------------------------------------
+// nsSVGPathGeometryElement methods
+
+bool
+SVGRectElement::GetGeometryBounds(Rect* aBounds,
+ const StrokeOptions& aStrokeOptions,
+ const Matrix& aToBoundsSpace,
+ const Matrix* aToNonScalingStrokeSpace)
+{
+ Rect rect;
+ Float rx, ry;
+ GetAnimatedLengthValues(&rect.x, &rect.y, &rect.width,
+ &rect.height, &rx, &ry, nullptr);
+
+ if (rect.IsEmpty()) {
+ // Rendering of the element disabled
+ rect.SetEmpty(); // Make sure width/height are zero and not negative
+ // We still want the x/y position from 'rect'
+ *aBounds = aToBoundsSpace.TransformBounds(rect);
+ return true;
+ }
+
+ if (!aToBoundsSpace.IsRectilinear()) {
+ // We can't ignore the radii in this case if we want tight bounds
+ rx = std::max(rx, 0.0f);
+ ry = std::max(ry, 0.0f);
+
+ if (rx != 0 || ry != 0) {
+ return false;
+ }
+ }
+
+ if (aStrokeOptions.mLineWidth > 0.f) {
+ if (aToNonScalingStrokeSpace) {
+ if (aToNonScalingStrokeSpace->IsRectilinear()) {
+ MOZ_ASSERT(!aToNonScalingStrokeSpace->IsSingular());
+ rect = aToNonScalingStrokeSpace->TransformBounds(rect);
+ // Note that, in principle, an author could cause the corners of the
+ // rect to be beveled by specifying stroke-linejoin or setting
+ // stroke-miterlimit to be less than sqrt(2). In that very unlikely
+ // event the bounds that we calculate here may be too big if
+ // aToBoundsSpace is non-rectilinear. This is likely to be so rare it's
+ // not worth handling though.
+ rect.Inflate(aStrokeOptions.mLineWidth / 2.f);
+ Matrix nonScalingToBounds =
+ aToNonScalingStrokeSpace->Inverse() * aToBoundsSpace;
+ *aBounds = nonScalingToBounds.TransformBounds(rect);
+ return true;
+ }
+ return false;
+ }
+ // The "beveled" comment above applies here too
+ rect.Inflate(aStrokeOptions.mLineWidth / 2.f);
+ }
+
+ *aBounds = aToBoundsSpace.TransformBounds(rect);
+ return true;
+}
+
+void
+SVGRectElement::GetAsSimplePath(SimplePath* aSimplePath)
+{
+ float x, y, width, height, rx, ry;
+ GetAnimatedLengthValues(&x, &y, &width, &height, &rx, &ry, nullptr);
+
+ if (width <= 0 || height <= 0) {
+ aSimplePath->Reset();
+ return;
+ }
+
+ rx = std::max(rx, 0.0f);
+ ry = std::max(ry, 0.0f);
+
+ if (rx != 0 || ry != 0) {
+ aSimplePath->Reset();
+ return;
+ }
+
+ aSimplePath->SetRect(x, y, width, height);
+}
+
+already_AddRefed<Path>
+SVGRectElement::BuildPath(PathBuilder* aBuilder)
+{
+ float x, y, width, height, rx, ry;
+ GetAnimatedLengthValues(&x, &y, &width, &height, &rx, &ry, nullptr);
+
+ if (width <= 0 || height <= 0) {
+ return nullptr;
+ }
+
+ rx = std::max(rx, 0.0f);
+ ry = std::max(ry, 0.0f);
+
+ if (rx == 0 && ry == 0) {
+ // Optimization for the no rounded corners case.
+ Rect r(x, y, width, height);
+ aBuilder->MoveTo(r.TopLeft());
+ aBuilder->LineTo(r.TopRight());
+ aBuilder->LineTo(r.BottomRight());
+ aBuilder->LineTo(r.BottomLeft());
+ aBuilder->Close();
+ } else {
+ // If either the 'rx' or the 'ry' attribute isn't set, then we have to
+ // set it to the value of the other:
+ bool hasRx = mLengthAttributes[ATTR_RX].IsExplicitlySet();
+ bool hasRy = mLengthAttributes[ATTR_RY].IsExplicitlySet();
+ MOZ_ASSERT(hasRx || hasRy);
+
+ if (hasRx && !hasRy) {
+ ry = rx;
+ } else if (hasRy && !hasRx) {
+ rx = ry;
+ }
+
+ // Clamp rx and ry to half the rect's width and height respectively:
+ rx = std::min(rx, width / 2);
+ ry = std::min(ry, height / 2);
+
+ RectCornerRadii radii(rx, ry);
+ AppendRoundedRectToPath(aBuilder, Rect(x, y, width, height), radii);
+ }
+
+ return aBuilder->Finish();
+}
+
+} // namespace dom
+} // namespace mozilla