File: CSSScale.h

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// Copyright 2016 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.

#ifndef CSSScale_h
#define CSSScale_h

#include "core/css/cssom/CSSMatrixTransformComponent.h"
#include "core/css/cssom/CSSTransformComponent.h"

namespace blink {

class CORE_EXPORT CSSScale final : public CSSTransformComponent {
  WTF_MAKE_NONCOPYABLE(CSSScale);
  DEFINE_WRAPPERTYPEINFO();

 public:
  static CSSScale* create(double x, double y) { return new CSSScale(x, y); }

  static CSSScale* create(double x, double y, double z) {
    return new CSSScale(x, y, z);
  }

  static CSSScale* fromCSSValue(const CSSFunctionValue&);

  double x() const { return m_x; }
  double y() const { return m_y; }
  double z() const { return m_z; }

  TransformComponentType type() const override {
    return m_is2D ? ScaleType : Scale3DType;
  }

  CSSMatrixTransformComponent* asMatrix() const override {
    return m_is2D ? CSSMatrixTransformComponent::scale(m_x, m_y)
                  : CSSMatrixTransformComponent::scale3d(m_x, m_y, m_z);
  }

  CSSFunctionValue* toCSSValue() const override;

 private:
  CSSScale(double x, double y) : m_x(x), m_y(y), m_z(1), m_is2D(true) {}
  CSSScale(double x, double y, double z)
      : m_x(x), m_y(y), m_z(z), m_is2D(false) {}

  double m_x;
  double m_y;
  double m_z;
  bool m_is2D;
};

}  // namespace blink

#endif