diff options
Diffstat (limited to 'dom/svg/SVGMatrix.cpp')
| -rw-r--r-- | dom/svg/SVGMatrix.cpp | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/dom/svg/SVGMatrix.cpp b/dom/svg/SVGMatrix.cpp new file mode 100644 index 0000000000..e967bc2413 --- /dev/null +++ b/dom/svg/SVGMatrix.cpp @@ -0,0 +1,175 @@ +/* -*- 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/SVGMatrix.h" +#include "nsError.h" +#include <math.h> +#include "mozilla/dom/SVGMatrixBinding.h" +#include "mozilla/FloatingPoint.h" + +const double radPerDegree = 2.0 * M_PI / 360.0; + +namespace mozilla::dom { + +NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(SVGMatrix, mTransform) + +DOMSVGTransform* SVGMatrix::GetParentObject() const { return mTransform; } + +JSObject* SVGMatrix::WrapObject(JSContext* aCx, + JS::Handle<JSObject*> aGivenProto) { + return SVGMatrix_Binding::Wrap(aCx, this, aGivenProto); +} + +void SVGMatrix::SetA(float aA, ErrorResult& rv) { + if (IsAnimVal()) { + rv.Throw(NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR); + return; + } + + gfxMatrix mx = GetMatrix(); + mx._11 = aA; + SetMatrix(mx); +} + +void SVGMatrix::SetB(float aB, ErrorResult& rv) { + if (IsAnimVal()) { + rv.Throw(NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR); + return; + } + + gfxMatrix mx = GetMatrix(); + mx._12 = aB; + SetMatrix(mx); +} + +void SVGMatrix::SetC(float aC, ErrorResult& rv) { + if (IsAnimVal()) { + rv.Throw(NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR); + return; + } + + gfxMatrix mx = GetMatrix(); + mx._21 = aC; + SetMatrix(mx); +} + +void SVGMatrix::SetD(float aD, ErrorResult& rv) { + if (IsAnimVal()) { + rv.Throw(NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR); + return; + } + + gfxMatrix mx = GetMatrix(); + mx._22 = aD; + SetMatrix(mx); +} + +void SVGMatrix::SetE(float aE, ErrorResult& rv) { + if (IsAnimVal()) { + rv.Throw(NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR); + return; + } + + gfxMatrix mx = GetMatrix(); + mx._31 = aE; + SetMatrix(mx); +} + +void SVGMatrix::SetF(float aF, ErrorResult& rv) { + if (IsAnimVal()) { + rv.Throw(NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR); + return; + } + + gfxMatrix mx = GetMatrix(); + mx._32 = aF; + SetMatrix(mx); +} + +already_AddRefed<SVGMatrix> SVGMatrix::Multiply(SVGMatrix& aMatrix) { + return do_AddRef(new SVGMatrix(aMatrix.GetMatrix() * GetMatrix())); +} + +already_AddRefed<SVGMatrix> SVGMatrix::Inverse(ErrorResult& rv) { + gfxMatrix mat = GetMatrix(); + if (!mat.Invert()) { + rv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR); + return nullptr; + } + return do_AddRef(new SVGMatrix(mat)); +} + +already_AddRefed<SVGMatrix> SVGMatrix::Translate(float x, float y) { + return do_AddRef( + new SVGMatrix(gfxMatrix(GetMatrix()).PreTranslate(gfxPoint(x, y)))); +} + +already_AddRefed<SVGMatrix> SVGMatrix::Scale(float scaleFactor) { + return ScaleNonUniform(scaleFactor, scaleFactor); +} + +already_AddRefed<SVGMatrix> SVGMatrix::ScaleNonUniform(float scaleFactorX, + float scaleFactorY) { + return do_AddRef(new SVGMatrix( + gfxMatrix(GetMatrix()).PreScale(scaleFactorX, scaleFactorY))); +} + +already_AddRefed<SVGMatrix> SVGMatrix::Rotate(float angle) { + return do_AddRef( + new SVGMatrix(gfxMatrix(GetMatrix()).PreRotate(angle * radPerDegree))); +} + +already_AddRefed<SVGMatrix> SVGMatrix::RotateFromVector(float x, float y, + ErrorResult& rv) { + if (x == 0.0 || y == 0.0) { + rv.Throw(NS_ERROR_DOM_INVALID_ACCESS_ERR); + return nullptr; + } + + return do_AddRef( + new SVGMatrix(gfxMatrix(GetMatrix()).PreRotate(atan2(y, x)))); +} + +already_AddRefed<SVGMatrix> SVGMatrix::FlipX() { + const gfxMatrix& mx = GetMatrix(); + return do_AddRef(new SVGMatrix( + gfxMatrix(-mx._11, -mx._12, mx._21, mx._22, mx._31, mx._32))); +} + +already_AddRefed<SVGMatrix> SVGMatrix::FlipY() { + const gfxMatrix& mx = GetMatrix(); + return do_AddRef(new SVGMatrix( + gfxMatrix(mx._11, mx._12, -mx._21, -mx._22, mx._31, mx._32))); +} + +already_AddRefed<SVGMatrix> SVGMatrix::SkewX(float angle, ErrorResult& rv) { + double ta = tan(angle * radPerDegree); + if (!std::isfinite(ta)) { + rv.Throw(NS_ERROR_DOM_INVALID_ACCESS_ERR); + return nullptr; + } + + const gfxMatrix& mx = GetMatrix(); + gfxMatrix skewMx(mx._11, mx._12, mx._21 + mx._11 * ta, mx._22 + mx._12 * ta, + mx._31, mx._32); + return do_AddRef(new SVGMatrix(skewMx)); +} + +already_AddRefed<SVGMatrix> SVGMatrix::SkewY(float angle, ErrorResult& rv) { + double ta = tan(angle * radPerDegree); + if (!std::isfinite(ta)) { + rv.Throw(NS_ERROR_DOM_INVALID_ACCESS_ERR); + return nullptr; + } + + const gfxMatrix& mx = GetMatrix(); + gfxMatrix skewMx(mx._11 + mx._21 * ta, mx._12 + mx._22 * ta, mx._21, mx._22, + mx._31, mx._32); + + return do_AddRef(new SVGMatrix(skewMx)); +} + +} // namespace mozilla::dom |