third_party/WebKit/Source/core/animation/SVGIntegerOptionalIntegerInterpolationType.cpp

// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "core/animation/SVGIntegerOptionalIntegerInterpolationType.h"

#include "core/animation/InterpolationEnvironment.h"
#include "core/svg/SVGIntegerOptionalInteger.h"
#include <memory>

namespace blink {

InterpolationValue
SVGIntegerOptionalIntegerInterpolationType::maybeConvertNeutral(
    const InterpolationValue&,
    ConversionCheckers&) const {
  std::unique_ptr<InterpolableList> result = InterpolableList::create(2);
  result->set(0, InterpolableNumber::create(0));
  result->set(1, InterpolableNumber::create(0));
  return InterpolationValue(std::move(result));
}

InterpolationValue
SVGIntegerOptionalIntegerInterpolationType::maybeConvertSVGValue(
    const SVGPropertyBase& svgValue) const {
  if (svgValue.type() != AnimatedIntegerOptionalInteger)
    return nullptr;

  const SVGIntegerOptionalInteger& integerOptionalInteger =
      toSVGIntegerOptionalInteger(svgValue);
  std::unique_ptr<InterpolableList> result = InterpolableList::create(2);
  result->set(0, InterpolableNumber::create(
                     integerOptionalInteger.firstInteger()->value()));
  result->set(1, InterpolableNumber::create(
                     integerOptionalInteger.secondInteger()->value()));
  return InterpolationValue(std::move(result));
}

static SVGInteger* toPositiveInteger(const InterpolableValue* number) {
  return SVGInteger::create(
      clampTo<int>(roundf(toInterpolableNumber(number)->value()), 1));
}

SVGPropertyBase* SVGIntegerOptionalIntegerInterpolationType::appliedSVGValue(
    const InterpolableValue& interpolableValue,
    const NonInterpolableValue*) const {
  const InterpolableList& list = toInterpolableList(interpolableValue);
  return SVGIntegerOptionalInteger::create(toPositiveInteger(list.get(0)),
                                           toPositiveInteger(list.get(1)));
}

}  // namespace blink