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b15169d8fd
When falling back from DrawTargetRecording to DrawTargetSkia, clips may be left that were created as PathRecordings, which DrawTargetSkia will ignore. This changes the code to unconditionally convert clips to the desired type for a given DrawTarget (which may differ from its actual backend type) when restoring clips, so that we avoid any such future scenarios. Differential Revision: https://phabricator.services.mozilla.com/D245038
101 lines
3.6 KiB
C++
101 lines
3.6 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef CanvasPath_h
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#define CanvasPath_h
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#include "mozilla/Attributes.h"
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#include "mozilla/RefPtr.h"
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#include "nsWrapperCache.h"
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#include "mozilla/gfx/2D.h"
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#include "mozilla/dom/BindingDeclarations.h"
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namespace mozilla {
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class ErrorResult;
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namespace dom {
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enum class CanvasWindingRule : uint8_t;
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struct DOMMatrix2DInit;
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class
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UnrestrictedDoubleOrDOMPointInitOrUnrestrictedDoubleOrDOMPointInitSequence;
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class CanvasPath final : public nsWrapperCache {
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public:
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NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(CanvasPath)
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NS_DECL_CYCLE_COLLECTION_NATIVE_WRAPPERCACHE_CLASS(CanvasPath)
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nsISupports* GetParentObject() { return mParent; }
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JSObject* WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) override;
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static already_AddRefed<CanvasPath> Constructor(const GlobalObject& aGlobal);
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static already_AddRefed<CanvasPath> Constructor(const GlobalObject& aGlobal,
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CanvasPath& aCanvasPath);
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static already_AddRefed<CanvasPath> Constructor(
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const GlobalObject& aGlobal, const nsACString& aPathString);
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void ClosePath();
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void MoveTo(double x, double y);
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void LineTo(double x, double y);
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void QuadraticCurveTo(double cpx, double cpy, double x, double y);
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void BezierCurveTo(double cp1x, double cp1y, double cp2x, double cp2y,
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double x, double y);
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void ArcTo(double x1, double y1, double x2, double y2, double radius,
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ErrorResult& error);
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void Rect(double x, double y, double w, double h);
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void RoundRect(
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double aX, double aY, double aW, double aH,
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const UnrestrictedDoubleOrDOMPointInitOrUnrestrictedDoubleOrDOMPointInitSequence&
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aRadii,
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ErrorResult& aError);
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void Arc(double x, double y, double radius, double startAngle,
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double endAngle, bool anticlockwise, ErrorResult& error);
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void Ellipse(double x, double y, double radiusX, double radiusY,
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double rotation, double startAngle, double endAngle,
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bool anticlockwise, ErrorResult& error);
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void LineTo(const gfx::Point& aPoint);
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void BezierTo(const gfx::Point& aCP1, const gfx::Point& aCP2,
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const gfx::Point& aCP3);
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already_AddRefed<gfx::Path> GetPath(const CanvasWindingRule& aWinding,
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gfx::BackendType aBackendType) const;
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already_AddRefed<gfx::Path> GetPath(const CanvasWindingRule& aWinding,
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const gfx::DrawTarget* aTarget) const {
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return GetPath(aWinding, aTarget->GetPathType());
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}
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explicit CanvasPath(nsISupports* aParent);
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// already_AddRefed arg because the return value from Path::CopyToBuilder()
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// is passed directly and we can't drop the only ref to have a raw pointer.
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CanvasPath(nsISupports* aParent,
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already_AddRefed<gfx::PathBuilder> aPathBuilder);
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void AddPath(CanvasPath& aCanvasPath, const DOMMatrix2DInit& aInit,
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ErrorResult& aError);
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private:
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virtual ~CanvasPath() = default;
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nsCOMPtr<nsISupports> mParent;
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static gfx::Float ToFloat(double aValue) { return gfx::Float(aValue); }
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mutable RefPtr<gfx::Path> mPath;
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mutable RefPtr<gfx::PathBuilder> mPathBuilder;
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// Whether an internal segment was zero-length.
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mutable bool mPruned = false;
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void EnsurePathBuilder() const;
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void EnsureCapped() const;
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void EnsureActive() const;
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};
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} // namespace dom
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} // namespace mozilla
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#endif /* CanvasPath_h */
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