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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/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 {
namespace dom {
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(SVGMatrix, mTransform)
NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(SVGMatrix, AddRef)
NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(SVGMatrix, Release)
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) {
RefPtr<SVGMatrix> matrix = new SVGMatrix(aMatrix.GetMatrix() * GetMatrix());
return matrix.forget();
}
already_AddRefed<SVGMatrix> SVGMatrix::Inverse(ErrorResult& rv) {
gfxMatrix mat = GetMatrix();
if (!mat.Invert()) {
rv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
return nullptr;
}
RefPtr<SVGMatrix> matrix = new SVGMatrix(mat);
return matrix.forget();
}
already_AddRefed<SVGMatrix> SVGMatrix::Translate(float x, float y) {
RefPtr<SVGMatrix> matrix =
new SVGMatrix(gfxMatrix(GetMatrix()).PreTranslate(gfxPoint(x, y)));
return matrix.forget();
}
already_AddRefed<SVGMatrix> SVGMatrix::Scale(float scaleFactor) {
return ScaleNonUniform(scaleFactor, scaleFactor);
}
already_AddRefed<SVGMatrix> SVGMatrix::ScaleNonUniform(float scaleFactorX,
float scaleFactorY) {
RefPtr<SVGMatrix> matrix = new SVGMatrix(
gfxMatrix(GetMatrix()).PreScale(scaleFactorX, scaleFactorY));
return matrix.forget();
}
already_AddRefed<SVGMatrix> SVGMatrix::Rotate(float angle) {
RefPtr<SVGMatrix> matrix =
new SVGMatrix(gfxMatrix(GetMatrix()).PreRotate(angle * radPerDegree));
return matrix.forget();
}
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;
}
RefPtr<SVGMatrix> matrix =
new SVGMatrix(gfxMatrix(GetMatrix()).PreRotate(atan2(y, x)));
return matrix.forget();
}
already_AddRefed<SVGMatrix> SVGMatrix::FlipX() {
const gfxMatrix& mx = GetMatrix();
RefPtr<SVGMatrix> matrix = new SVGMatrix(
gfxMatrix(-mx._11, -mx._12, mx._21, mx._22, mx._31, mx._32));
return matrix.forget();
}
already_AddRefed<SVGMatrix> SVGMatrix::FlipY() {
const gfxMatrix& mx = GetMatrix();
RefPtr<SVGMatrix> matrix = new SVGMatrix(
gfxMatrix(mx._11, mx._12, -mx._21, -mx._22, mx._31, mx._32));
return matrix.forget();
}
already_AddRefed<SVGMatrix> SVGMatrix::SkewX(float angle, ErrorResult& rv) {
double ta = tan(angle * radPerDegree);
if (!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);
RefPtr<SVGMatrix> matrix = new SVGMatrix(skewMx);
return matrix.forget();
}
already_AddRefed<SVGMatrix> SVGMatrix::SkewY(float angle, ErrorResult& rv) {
double ta = tan(angle * radPerDegree);
if (!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);
RefPtr<SVGMatrix> matrix = new SVGMatrix(skewMx);
return matrix.forget();
}
} // namespace dom
} // namespace mozilla
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