mirror of
https://github.com/classilla/tenfourfox.git
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231 lines
5.1 KiB
C++
231 lines
5.1 KiB
C++
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/* -*- 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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#include "mozilla/dom/SVGMatrix.h"
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#include "nsError.h"
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#include <math.h>
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#include "mozilla/dom/SVGMatrixBinding.h"
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#include "mozilla/FloatingPoint.h"
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const double radPerDegree = 2.0 * M_PI / 360.0;
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namespace mozilla {
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namespace dom {
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NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(SVGMatrix, mTransform)
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NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(SVGMatrix, AddRef)
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NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(SVGMatrix, Release)
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SVGTransform*
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SVGMatrix::GetParentObject() const
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{
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return mTransform;
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}
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JSObject*
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SVGMatrix::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
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{
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return SVGMatrixBinding::Wrap(aCx, this, aGivenProto);
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}
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void
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SVGMatrix::SetA(float aA, ErrorResult& rv)
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{
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if (IsAnimVal()) {
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rv.Throw(NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR);
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return;
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}
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gfxMatrix mx = GetMatrix();
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mx._11 = aA;
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SetMatrix(mx);
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}
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void
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SVGMatrix::SetB(float aB, ErrorResult& rv)
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{
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if (IsAnimVal()) {
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rv.Throw(NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR);
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return;
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}
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gfxMatrix mx = GetMatrix();
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mx._12 = aB;
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SetMatrix(mx);
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}
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void
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SVGMatrix::SetC(float aC, ErrorResult& rv)
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{
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if (IsAnimVal()) {
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rv.Throw(NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR);
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return;
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}
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gfxMatrix mx = GetMatrix();
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mx._21 = aC;
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SetMatrix(mx);
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}
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void
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SVGMatrix::SetD(float aD, ErrorResult& rv)
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{
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if (IsAnimVal()) {
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rv.Throw(NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR);
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return;
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}
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gfxMatrix mx = GetMatrix();
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mx._22 = aD;
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SetMatrix(mx);
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}
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void
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SVGMatrix::SetE(float aE, ErrorResult& rv)
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{
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if (IsAnimVal()) {
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rv.Throw(NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR);
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return;
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}
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gfxMatrix mx = GetMatrix();
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mx._31 = aE;
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SetMatrix(mx);
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}
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void
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SVGMatrix::SetF(float aF, ErrorResult& rv)
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{
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if (IsAnimVal()) {
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rv.Throw(NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR);
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return;
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}
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gfxMatrix mx = GetMatrix();
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mx._32 = aF;
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SetMatrix(mx);
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}
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already_AddRefed<SVGMatrix>
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SVGMatrix::Multiply(SVGMatrix& aMatrix)
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{
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RefPtr<SVGMatrix> matrix = new SVGMatrix(aMatrix.GetMatrix() * GetMatrix());
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return matrix.forget();
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}
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already_AddRefed<SVGMatrix>
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SVGMatrix::Inverse(ErrorResult& rv)
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{
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gfxMatrix mat = GetMatrix();
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if (!mat.Invert()) {
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rv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
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return nullptr;
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}
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RefPtr<SVGMatrix> matrix = new SVGMatrix(mat);
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return matrix.forget();
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}
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already_AddRefed<SVGMatrix>
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SVGMatrix::Translate(float x, float y)
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{
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RefPtr<SVGMatrix> matrix =
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new SVGMatrix(gfxMatrix(GetMatrix()).Translate(gfxPoint(x, y)));
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return matrix.forget();
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}
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already_AddRefed<SVGMatrix>
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SVGMatrix::Scale(float scaleFactor)
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{
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return ScaleNonUniform(scaleFactor, scaleFactor);
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}
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already_AddRefed<SVGMatrix>
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SVGMatrix::ScaleNonUniform(float scaleFactorX,
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float scaleFactorY)
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{
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RefPtr<SVGMatrix> matrix =
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new SVGMatrix(gfxMatrix(GetMatrix()).Scale(scaleFactorX, scaleFactorY));
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return matrix.forget();
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}
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already_AddRefed<SVGMatrix>
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SVGMatrix::Rotate(float angle)
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{
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RefPtr<SVGMatrix> matrix =
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new SVGMatrix(gfxMatrix(GetMatrix()).Rotate(angle*radPerDegree));
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return matrix.forget();
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}
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already_AddRefed<SVGMatrix>
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SVGMatrix::RotateFromVector(float x, float y, ErrorResult& rv)
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{
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if (x == 0.0 || y == 0.0) {
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rv.Throw(NS_ERROR_DOM_INVALID_ACCESS_ERR);
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return nullptr;
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}
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RefPtr<SVGMatrix> matrix =
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new SVGMatrix(gfxMatrix(GetMatrix()).Rotate(atan2(y, x)));
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return matrix.forget();
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}
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already_AddRefed<SVGMatrix>
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SVGMatrix::FlipX()
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{
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const gfxMatrix& mx = GetMatrix();
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RefPtr<SVGMatrix> matrix =
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new SVGMatrix(gfxMatrix(-mx._11, -mx._12, mx._21, mx._22, mx._31, mx._32));
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return matrix.forget();
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}
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already_AddRefed<SVGMatrix>
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SVGMatrix::FlipY()
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{
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const gfxMatrix& mx = GetMatrix();
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RefPtr<SVGMatrix> matrix =
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new SVGMatrix(gfxMatrix(mx._11, mx._12, -mx._21, -mx._22, mx._31, mx._32));
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return matrix.forget();
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}
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already_AddRefed<SVGMatrix>
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SVGMatrix::SkewX(float angle, ErrorResult& rv)
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{
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double ta = tan( angle*radPerDegree );
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if (!IsFinite(ta)) {
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rv.Throw(NS_ERROR_DOM_INVALID_ACCESS_ERR);
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return nullptr;
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}
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const gfxMatrix& mx = GetMatrix();
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gfxMatrix skewMx(mx._11, mx._12,
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(float) (mx._21 + mx._11*ta), (float) (mx._22 + mx._12*ta),
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mx._31, mx._32);
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RefPtr<SVGMatrix> matrix = new SVGMatrix(skewMx);
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return matrix.forget();
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}
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already_AddRefed<SVGMatrix>
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SVGMatrix::SkewY(float angle, ErrorResult& rv)
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{
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double ta = tan( angle*radPerDegree );
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if (!IsFinite(ta)) {
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rv.Throw(NS_ERROR_DOM_INVALID_ACCESS_ERR);
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return nullptr;
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}
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const gfxMatrix& mx = GetMatrix();
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gfxMatrix skewMx((float) (mx._11 + mx._21*ta), (float) (mx._12 + mx._22*ta),
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mx._21, mx._22,
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mx._31, mx._32);
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RefPtr<SVGMatrix> matrix = new SVGMatrix(skewMx);
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return matrix.forget();
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}
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} // namespace dom
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} // namespace mozilla
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