1 files changed, 97 insertions, 0 deletions
diff --git a/dom/svg/SVGIntegerPairSMILType.cpp b/dom/svg/SVGIntegerPairSMILType.cpp
new file mode 100644
index 0000000000..838522b272
--- /dev/null
+++ b/dom/svg/SVGIntegerPairSMILType.cpp
@@ -0,0 +1,97 @@
+/* -*- 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 "SVGIntegerPairSMILType.h"
+
+#include "mozilla/SMILValue.h"
+#include "nsMathUtils.h"
+#include "nsDebug.h"
+
+namespace mozilla {
+
+void SVGIntegerPairSMILType::Init(SMILValue& aValue) const {
+  MOZ_ASSERT(aValue.IsNull(), "Unexpected value type");
+
+  aValue.mU.mIntPair[0] = 0;
+  aValue.mU.mIntPair[1] = 0;
+  aValue.mType = this;
+}
+
+void SVGIntegerPairSMILType::Destroy(SMILValue& aValue) const {
+  MOZ_ASSERT(aValue.mType == this, "Unexpected SMIL value");
+  aValue.mU.mIntPair[0] = 0;
+  aValue.mU.mIntPair[1] = 0;
+  aValue.mType = SMILNullType::Singleton();
+}
+
+nsresult SVGIntegerPairSMILType::Assign(SMILValue& aDest,
+                                        const SMILValue& aSrc) const {
+  MOZ_ASSERT(aDest.mType == aSrc.mType, "Incompatible SMIL types");
+  MOZ_ASSERT(aDest.mType == this, "Unexpected SMIL value");
+
+  aDest.mU.mIntPair[0] = aSrc.mU.mIntPair[0];
+  aDest.mU.mIntPair[1] = aSrc.mU.mIntPair[1];
+  return NS_OK;
+}
+
+bool SVGIntegerPairSMILType::IsEqual(const SMILValue& aLeft,
+                                     const SMILValue& aRight) const {
+  MOZ_ASSERT(aLeft.mType == aRight.mType, "Incompatible SMIL types");
+  MOZ_ASSERT(aLeft.mType == this, "Unexpected type for SMIL value");
+
+  return aLeft.mU.mIntPair[0] == aRight.mU.mIntPair[0] &&
+         aLeft.mU.mIntPair[1] == aRight.mU.mIntPair[1];
+}
+
+nsresult SVGIntegerPairSMILType::Add(SMILValue& aDest,
+                                     const SMILValue& aValueToAdd,
+                                     uint32_t aCount) const {
+  MOZ_ASSERT(aValueToAdd.mType == aDest.mType, "Trying to add invalid types");
+  MOZ_ASSERT(aValueToAdd.mType == this, "Unexpected source type");
+
+  aDest.mU.mIntPair[0] += aValueToAdd.mU.mIntPair[0] * aCount;
+  aDest.mU.mIntPair[1] += aValueToAdd.mU.mIntPair[1] * aCount;
+
+  return NS_OK;
+}
+
+nsresult SVGIntegerPairSMILType::ComputeDistance(const SMILValue& aFrom,
+                                                 const SMILValue& aTo,
+                                                 double& aDistance) const {
+  MOZ_ASSERT(aFrom.mType == aTo.mType, "Trying to compare different types");
+  MOZ_ASSERT(aFrom.mType == this, "Unexpected source type");
+
+  double delta[2];
+  delta[0] = aTo.mU.mIntPair[0] - aFrom.mU.mIntPair[0];
+  delta[1] = aTo.mU.mIntPair[1] - aFrom.mU.mIntPair[1];
+
+  aDistance = NS_hypot(delta[0], delta[1]);
+  return NS_OK;
+}
+
+nsresult SVGIntegerPairSMILType::Interpolate(const SMILValue& aStartVal,
+                                             const SMILValue& aEndVal,
+                                             double aUnitDistance,
+                                             SMILValue& aResult) const {
+  MOZ_ASSERT(aStartVal.mType == aEndVal.mType,
+             "Trying to interpolate different types");
+  MOZ_ASSERT(aStartVal.mType == this, "Unexpected types for interpolation");
+  MOZ_ASSERT(aResult.mType == this, "Unexpected result type");
+
+  double currentVal[2];
+  currentVal[0] =
+      aStartVal.mU.mIntPair[0] +
+      (aEndVal.mU.mIntPair[0] - aStartVal.mU.mIntPair[0]) * aUnitDistance;
+  currentVal[1] =
+      aStartVal.mU.mIntPair[1] +
+      (aEndVal.mU.mIntPair[1] - aStartVal.mU.mIntPair[1]) * aUnitDistance;
+
+  aResult.mU.mIntPair[0] = NS_lround(currentVal[0]);
+  aResult.mU.mIntPair[1] = NS_lround(currentVal[1]);
+  return NS_OK;
+}
+
+}  // namespace mozilla