mirror of
https://github.com/mozilla/gecko-dev.git
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344 lines
13 KiB
C++
344 lines
13 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* 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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef MOZILLA_DOM_DOMMATRIX_H_
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#define MOZILLA_DOM_DOMMATRIX_H_
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#include <cstring>
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#include <utility>
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#include "js/RootingAPI.h"
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#include "mozilla/AlreadyAddRefed.h"
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#include "mozilla/Assertions.h"
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#include "mozilla/UniquePtr.h"
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#include "mozilla/dom/TypedArray.h"
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#include "mozilla/gfx/Matrix.h"
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#include "nsCOMPtr.h"
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#include "nsCycleCollectionParticipant.h"
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#include "nsISupports.h"
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#include "nsStringFwd.h"
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#include "nsWrapperCache.h"
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class JSObject;
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class nsIGlobalObject;
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struct JSContext;
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struct JSStructuredCloneReader;
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struct JSStructuredCloneWriter;
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namespace mozilla {
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class ErrorResult;
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namespace dom {
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class GlobalObject;
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class DOMMatrix;
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class DOMPoint;
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template <typename T>
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class Optional;
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class UTF8StringOrUnrestrictedDoubleSequenceOrDOMMatrixReadOnly;
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struct DOMPointInit;
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struct DOMMatrixInit;
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struct DOMMatrix2DInit;
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class DOMMatrixReadOnly : public nsWrapperCache {
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public:
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explicit DOMMatrixReadOnly(nsISupports* aParent)
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: mParent(aParent), mMatrix2D(new gfx::MatrixDouble()) {}
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DOMMatrixReadOnly(nsISupports* aParent, const DOMMatrixReadOnly& other)
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: mParent(aParent) {
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if (other.mMatrix2D) {
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mMatrix2D = MakeUnique<gfx::MatrixDouble>(*other.mMatrix2D);
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} else {
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mMatrix3D = MakeUnique<gfx::Matrix4x4Double>(*other.mMatrix3D);
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}
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}
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DOMMatrixReadOnly(nsISupports* aParent, const gfx::Matrix4x4& aMatrix)
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: mParent(aParent) {
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mMatrix3D = MakeUnique<gfx::Matrix4x4Double>(aMatrix);
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}
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DOMMatrixReadOnly(nsISupports* aParent, const gfx::Matrix& aMatrix)
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: mParent(aParent) {
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mMatrix2D = MakeUnique<gfx::MatrixDouble>(aMatrix);
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}
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NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(DOMMatrixReadOnly)
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NS_DECL_CYCLE_COLLECTION_NATIVE_WRAPPERCACHE_CLASS(DOMMatrixReadOnly)
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nsISupports* GetParentObject() const { return mParent; }
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virtual JSObject* WrapObject(JSContext* cx,
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JS::Handle<JSObject*> aGivenProto) override;
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static already_AddRefed<DOMMatrixReadOnly> FromMatrix(
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nsISupports* aParent, const DOMMatrix2DInit& aMatrixInit,
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ErrorResult& aRv);
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static already_AddRefed<DOMMatrixReadOnly> FromMatrix(
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nsISupports* aParent, const DOMMatrixInit& aMatrixInit, ErrorResult& aRv);
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static already_AddRefed<DOMMatrixReadOnly> FromMatrix(
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const GlobalObject& aGlobal, const DOMMatrixInit& aMatrixInit,
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ErrorResult& aRv);
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static already_AddRefed<DOMMatrixReadOnly> FromFloat32Array(
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const GlobalObject& aGlobal, const Float32Array& aArray32,
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ErrorResult& aRv);
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static already_AddRefed<DOMMatrixReadOnly> FromFloat64Array(
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const GlobalObject& aGlobal, const Float64Array& aArray64,
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ErrorResult& aRv);
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static already_AddRefed<DOMMatrixReadOnly> Constructor(
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const GlobalObject& aGlobal,
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const Optional<UTF8StringOrUnrestrictedDoubleSequenceOrDOMMatrixReadOnly>&
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aArg,
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ErrorResult& aRv);
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static already_AddRefed<DOMMatrixReadOnly> ReadStructuredClone(
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JSContext* aCx, nsIGlobalObject* aGlobal,
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JSStructuredCloneReader* aReader);
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// clang-format off
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#define GetMatrixMember(entry2D, entry3D, default) \
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{ \
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if (mMatrix3D) { \
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return mMatrix3D->entry3D; \
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} \
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return mMatrix2D->entry2D; \
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}
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#define Get3DMatrixMember(entry3D, default) \
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{ \
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if (mMatrix3D) { \
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return mMatrix3D->entry3D; \
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} \
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return default; \
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}
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double A() const GetMatrixMember(_11, _11, 1.0)
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double B() const GetMatrixMember(_12, _12, 0)
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double C() const GetMatrixMember(_21, _21, 0)
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double D() const GetMatrixMember(_22, _22, 1.0)
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double E() const GetMatrixMember(_31, _41, 0)
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double F() const GetMatrixMember(_32, _42, 0)
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double M11() const GetMatrixMember(_11, _11, 1.0)
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double M12() const GetMatrixMember(_12, _12, 0)
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double M13() const Get3DMatrixMember(_13, 0)
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double M14() const Get3DMatrixMember(_14, 0)
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double M21() const GetMatrixMember(_21, _21, 0)
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double M22() const GetMatrixMember(_22, _22, 1.0)
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double M23() const Get3DMatrixMember(_23, 0)
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double M24() const Get3DMatrixMember(_24, 0)
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double M31() const Get3DMatrixMember(_31, 0)
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double M32() const Get3DMatrixMember(_32, 0)
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double M33() const Get3DMatrixMember(_33, 1.0)
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double M34() const Get3DMatrixMember(_34, 0)
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double M41() const GetMatrixMember(_31, _41, 0)
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double M42() const GetMatrixMember(_32, _42, 0)
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double M43() const Get3DMatrixMember(_43, 0)
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double M44() const Get3DMatrixMember(_44, 1.0)
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#undef GetMatrixMember
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#undef Get3DMatrixMember
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// Defined here so we can construct DOMMatrixReadOnly objects.
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#define Set2DMatrixMember(entry2D, entry3D) \
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{ \
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if (mMatrix3D) { \
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mMatrix3D->entry3D = v; \
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} else { \
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mMatrix2D->entry2D = v; \
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} \
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}
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#define Set3DMatrixMember(entry3D, default) \
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{ \
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if (mMatrix3D || (v != default)) { \
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Ensure3DMatrix(); \
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mMatrix3D->entry3D = v; \
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} \
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}
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void SetA(double v) Set2DMatrixMember(_11, _11)
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void SetB(double v) Set2DMatrixMember(_12, _12)
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void SetC(double v) Set2DMatrixMember(_21, _21)
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void SetD(double v) Set2DMatrixMember(_22, _22)
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void SetE(double v) Set2DMatrixMember(_31, _41)
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void SetF(double v) Set2DMatrixMember(_32, _42)
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void SetM11(double v) Set2DMatrixMember(_11, _11)
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void SetM12(double v) Set2DMatrixMember(_12, _12)
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void SetM13(double v) Set3DMatrixMember(_13, 0)
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void SetM14(double v) Set3DMatrixMember(_14, 0)
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void SetM21(double v) Set2DMatrixMember(_21, _21)
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void SetM22(double v) Set2DMatrixMember(_22, _22)
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void SetM23(double v) Set3DMatrixMember(_23, 0)
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void SetM24(double v) Set3DMatrixMember(_24, 0)
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void SetM31(double v) Set3DMatrixMember(_31, 0)
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void SetM32(double v) Set3DMatrixMember(_32, 0)
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void SetM33(double v) Set3DMatrixMember(_33, 1.0)
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void SetM34(double v) Set3DMatrixMember(_34, 0)
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void SetM41(double v) Set2DMatrixMember(_31, _41)
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void SetM42(double v) Set2DMatrixMember(_32, _42)
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void SetM43(double v) Set3DMatrixMember(_43, 0)
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void SetM44(double v) Set3DMatrixMember(_44, 1.0)
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; // semi-colon here to get clang-format to align properly from here on
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#undef Set2DMatrixMember
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#undef Set3DMatrixMember
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// clang-format on
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already_AddRefed<DOMMatrix> Translate(double aTx, double aTy,
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double aTz = 0) const;
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already_AddRefed<DOMMatrix> Scale(double aScaleX,
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const Optional<double>& aScaleY,
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double aScaleZ, double aOriginX,
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double aOriginY, double aOriginZ) const;
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already_AddRefed<DOMMatrix> Scale3d(double aScale, double aOriginX = 0,
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double aOriginY = 0,
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double aOriginZ = 0) const;
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already_AddRefed<DOMMatrix> ScaleNonUniform(double aScaleX,
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double aScaleY) const;
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already_AddRefed<DOMMatrix> Rotate(double aRotX,
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const Optional<double>& aRotY,
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const Optional<double>& aRotZ) const;
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already_AddRefed<DOMMatrix> RotateFromVector(double aX, double aY) const;
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already_AddRefed<DOMMatrix> RotateAxisAngle(double aX, double aY, double aZ,
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double aAngle) const;
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already_AddRefed<DOMMatrix> SkewX(double aSx) const;
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already_AddRefed<DOMMatrix> SkewY(double aSy) const;
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already_AddRefed<DOMMatrix> Multiply(const DOMMatrixInit& aOther,
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ErrorResult& aRv) const;
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already_AddRefed<DOMMatrix> FlipX() const;
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already_AddRefed<DOMMatrix> FlipY() const;
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already_AddRefed<DOMMatrix> Inverse() const;
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bool Is2D() const;
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bool IsIdentity() const;
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already_AddRefed<DOMPoint> TransformPoint(const DOMPointInit& aPoint) const;
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void ToFloat32Array(JSContext* aCx, JS::MutableHandle<JSObject*> aResult,
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ErrorResult& aRv) const;
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void ToFloat64Array(JSContext* aCx, JS::MutableHandle<JSObject*> aResult,
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ErrorResult& aRv) const;
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void Stringify(nsAString& aResult, ErrorResult& aRv);
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bool WriteStructuredClone(JSContext* aCx,
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JSStructuredCloneWriter* aWriter) const;
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const gfx::MatrixDouble* GetInternal2D() const {
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if (Is2D()) {
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return mMatrix2D.get();
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}
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return nullptr;
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}
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protected:
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nsCOMPtr<nsISupports> mParent;
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UniquePtr<gfx::MatrixDouble> mMatrix2D;
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UniquePtr<gfx::Matrix4x4Double> mMatrix3D;
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virtual ~DOMMatrixReadOnly() = default;
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/**
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* Sets data from a fully validated and fixed-up matrix init,
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* where all of its members are properly defined.
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* The init dictionary's dimension must match the matrix one.
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*/
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void SetDataFromMatrix2DInit(const DOMMatrix2DInit& aMatrixInit);
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void SetDataFromMatrixInit(const DOMMatrixInit& aMatrixInit);
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DOMMatrixReadOnly* SetMatrixValue(const nsACString&, ErrorResult&);
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void Ensure3DMatrix();
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DOMMatrixReadOnly(nsISupports* aParent, bool is2D) : mParent(aParent) {
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if (is2D) {
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mMatrix2D = MakeUnique<gfx::MatrixDouble>();
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} else {
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mMatrix3D = MakeUnique<gfx::Matrix4x4Double>();
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}
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}
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static bool ReadStructuredCloneElements(JSStructuredCloneReader* aReader,
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DOMMatrixReadOnly* matrix);
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private:
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DOMMatrixReadOnly() = delete;
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DOMMatrixReadOnly(const DOMMatrixReadOnly&) = delete;
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DOMMatrixReadOnly& operator=(const DOMMatrixReadOnly&) = delete;
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};
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class DOMMatrix : public DOMMatrixReadOnly {
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public:
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explicit DOMMatrix(nsISupports* aParent) : DOMMatrixReadOnly(aParent) {}
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DOMMatrix(nsISupports* aParent, const DOMMatrixReadOnly& other)
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: DOMMatrixReadOnly(aParent, other) {}
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DOMMatrix(nsISupports* aParent, const gfx::Matrix4x4& aMatrix)
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: DOMMatrixReadOnly(aParent, aMatrix) {}
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DOMMatrix(nsISupports* aParent, const gfx::Matrix& aMatrix)
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: DOMMatrixReadOnly(aParent, aMatrix) {}
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static already_AddRefed<DOMMatrix> FromMatrix(
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nsISupports* aParent, const DOMMatrixInit& aMatrixInit, ErrorResult& aRv);
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static already_AddRefed<DOMMatrix> FromMatrix(
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const GlobalObject& aGlobal, const DOMMatrixInit& aMatrixInit,
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ErrorResult& aRv);
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static already_AddRefed<DOMMatrix> FromFloat32Array(
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const GlobalObject& aGlobal, const Float32Array& aArray32,
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ErrorResult& aRv);
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static already_AddRefed<DOMMatrix> FromFloat64Array(
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const GlobalObject& aGlobal, const Float64Array& aArray64,
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ErrorResult& aRv);
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static already_AddRefed<DOMMatrix> Constructor(
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const GlobalObject& aGlobal,
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const Optional<UTF8StringOrUnrestrictedDoubleSequenceOrDOMMatrixReadOnly>&
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aArg,
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ErrorResult& aRv);
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static already_AddRefed<DOMMatrix> ReadStructuredClone(
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JSContext* aCx, nsIGlobalObject* aGlobal,
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JSStructuredCloneReader* aReader);
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virtual JSObject* WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) override;
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DOMMatrix* MultiplySelf(const DOMMatrixInit& aOther, ErrorResult& aRv);
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DOMMatrix* PreMultiplySelf(const DOMMatrixInit& aOther, ErrorResult& aRv);
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DOMMatrix* TranslateSelf(double aTx, double aTy, double aTz = 0);
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DOMMatrix* ScaleSelf(double aScaleX, const Optional<double>& aScaleY,
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double aScaleZ, double aOriginX, double aOriginY,
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double aOriginZ);
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DOMMatrix* Scale3dSelf(double aScale, double aOriginX = 0,
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double aOriginY = 0, double aOriginZ = 0);
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DOMMatrix* RotateSelf(double aRotX, const Optional<double>& aRotY,
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const Optional<double>& aRotZ);
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DOMMatrix* RotateFromVectorSelf(double aX, double aY);
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DOMMatrix* RotateAxisAngleSelf(double aX, double aY, double aZ,
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double aAngle);
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DOMMatrix* SkewXSelf(double aSx);
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DOMMatrix* SkewYSelf(double aSy);
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DOMMatrix* InvertSelf();
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DOMMatrix* SetMatrixValue(const nsACString&, ErrorResult&);
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virtual ~DOMMatrix() = default;
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private:
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DOMMatrix(nsISupports* aParent, bool is2D)
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: DOMMatrixReadOnly(aParent, is2D) {}
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};
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} // namespace dom
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} // namespace mozilla
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#endif /*MOZILLA_DOM_DOMMATRIX_H_*/
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