text: // -------------------------------------------------
  // BlinKit - BlinKit Library
  // -------------------------------------------------
  //   File Name: EffectModel.h
  // Description: EffectModel Class
  //      Author: Ziming Li
  //     Created: 2021-11-01
  // -------------------------------------------------
  // Copyright (C) 2021 MingYang Software Technology.
  // -------------------------------------------------
  
  /*
   * Copyright (C) 2013 Google Inc. All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are
   * met:
   *
   *     * Redistributions of source code must retain the above copyright
   * notice, this list of conditions and the following disclaimer.
   *     * Redistributions in binary form must reproduce the above
   * copyright notice, this list of conditions and the following disclaimer
   * in the documentation and/or other materials provided with the
   * distribution.
   *     * Neither the name of Google Inc. nor the names of its
   * contributors may be used to endorse or promote products derived from
   * this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  #ifndef EffectModel_h
  #define EffectModel_h
  
  #include "bindings/core/v8/ScriptWrappable.h"
  #include "core/CSSPropertyNames.h"
  #include "core/CoreExport.h"
  #include "core/animation/PropertyHandle.h"
  #include "platform/heap/Handle.h"
  #include "wtf/HashMap.h"
  #include "wtf/PassOwnPtr.h"
  
  namespace blink {
  
  class Interpolation;
  
  class CORE_EXPORT EffectModel : public BlinKit::GCObject, public ScriptWrappable {
      DEFINE_WRAPPERTYPEINFO();
  public:
      enum CompositeOperation {
          CompositeReplace,
          CompositeAdd,
      };
  
      EffectModel() { }
      virtual ~EffectModel() { }
      virtual bool sample(int iteration, double fraction, double iterationDuration, Vector<RefPtr<Interpolation>>&) const = 0;
  
      virtual bool affects(PropertyHandle) const { return false; }
      virtual bool isTransformRelatedEffect() const { return false; }
      virtual bool isKeyframeEffectModel() const { return false; }
  
  private:
      BlinKit::GCObject* ObjectForGC(void) final { return this; }
  };
  
  } // namespace blink
  
  #endif // EffectModel_h
  