third_party/blink/renderer/core/style/shape_clip_path_operation.h

/*
 * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above
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 *    disclaimer.
 * 2. 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER "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 HOLDER 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
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#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_STYLE_SHAPE_CLIP_PATH_OPERATION_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_STYLE_SHAPE_CLIP_PATH_OPERATION_H_

#include "third_party/blink/renderer/core/style/basic_shapes.h"
#include "third_party/blink/renderer/core/style/clip_path_operation.h"
#include "third_party/blink/renderer/core/style/computed_style_constants.h"
#include "third_party/blink/renderer/platform/graphics/path.h"

namespace blink {

class ShapeClipPathOperation final : public ClipPathOperation {
 public:
  ShapeClipPathOperation(scoped_refptr<const BasicShape> shape,
                         GeometryBox geometry_box)
      : shape_(std::move(shape)), geometry_box_(geometry_box) {
    DCHECK(shape_);
  }

  const BasicShape* GetBasicShape() const { return shape_.get(); }
  Path GetPath(const gfx::RectF& bounding_rect, float zoom) const {
    Path path;
    shape_->GetPath(path, bounding_rect, zoom);
    return path;
  }

  GeometryBox GetGeometryBox() const { return geometry_box_; }

 private:
  bool operator==(const ClipPathOperation&) const override;
  OperationType GetType() const override { return kShape; }

  scoped_refptr<const BasicShape> shape_;
  GeometryBox geometry_box_;
};

template <>
struct DowncastTraits<ShapeClipPathOperation> {
  static bool AllowFrom(const ClipPathOperation& op) {
    return op.GetType() == ClipPathOperation::kShape;
  }
};

inline bool ShapeClipPathOperation::operator==(
    const ClipPathOperation& o) const {
  if (!IsSameType(o)) {
    return false;
  }
  auto& other_shape = To<ShapeClipPathOperation>(o);
  return *shape_ == *other_shape.shape_ &&
         geometry_box_ == other_shape.geometry_box_;
}

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_CORE_STYLE_SHAPE_CLIP_PATH_OPERATION_H_