1 files changed, 230 insertions, 0 deletions
diff --git a/dom/svg/SVGMatrix.cpp b/dom/svg/SVGMatrix.cpp
new file mode 100644
index 000000000..3fb0de5fa
--- /dev/null
+++ b/dom/svg/SVGMatrix.cpp
@@ -0,0 +1,230 @@
+/* -*- 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)
+
+SVGTransform*
+SVGMatrix::GetParentObject() const
+{
+  return mTransform;
+}
+
+JSObject*
+SVGMatrix::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
+{
+  return SVGMatrixBinding::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()).Translate(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()).Scale(scaleFactorX, scaleFactorY));
+  return matrix.forget();
+}
+
+already_AddRefed<SVGMatrix>
+SVGMatrix::Rotate(float angle)
+{
+  RefPtr<SVGMatrix> matrix =
+    new SVGMatrix(gfxMatrix(GetMatrix()).Rotate(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()).Rotate(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,
+                   (float) (mx._21 + mx._11*ta), (float) (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((float) (mx._11 + mx._21*ta), (float) (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