/*

 * Copyright 2017 Google Inc.

 *

 * Use of this source code is governed by a BSD-style license that can be

 * found in the LICENSE file.

 */

#ifndef SkSGEffectNode_DEFINED

#define SkSGEffectNode_DEFINED

#include "modules/sksg/include/SkSGRenderNode.h"

namespace sksg {

/**

 * Base class for nodes which apply some transformation when rendering

 * their descendants.

 *

 * This includes transforms, clipping, filters, etc.

 */

class EffectNode : public RenderNode {

protected:

    explicit EffectNode(sk_sp<RenderNode>, uint32_t inval_traits = 0);

    ~EffectNode() override;

    void onRender(SkCanvas*, const RenderContext*) const override;

    const RenderNode* onNodeAt(const SkPoint&)     const override;

    SkRect onRevalidate(InvalidationController*, const SkMatrix&) override;

    const sk_sp<RenderNode>& getChild() const { return fChild; }

private:

    sk_sp<RenderNode> fChild;

    using INHERITED = RenderNode;

};

} // namespace sksg

#endif // SkSGEffectNode_DEFINED