1/*
2 * Copyright 2018 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8#ifndef SkSGClipEffect_DEFINED
9#define SkSGClipEffect_DEFINED
10
11#include "modules/sksg/include/SkSGEffectNode.h"
12
13namespace sksg {
14
15class GeometryNode;
16
17/**
18 * Concrete Effect node, applying a clip to its descendants.
19 *
20 */
21class ClipEffect final : public EffectNode {
22public:
23    static sk_sp<ClipEffect> Make(sk_sp<RenderNode> child, sk_sp<GeometryNode> clip,
24                                  bool aa = false) {
25        return (child && clip)
26            ? sk_sp<ClipEffect>(new ClipEffect(std::move(child), std::move(clip), aa))
27            : nullptr;
28    }
29
30    ~ClipEffect() override;
31
32protected:
33    ClipEffect(sk_sp<RenderNode>, sk_sp<GeometryNode>, bool aa);
34
35    void onRender(SkCanvas*, const RenderContext*) const override;
36    const RenderNode* onNodeAt(const SkPoint&)     const override;
37
38    SkRect onRevalidate(InvalidationController*, const SkMatrix&) override;
39
40private:
41    const sk_sp<GeometryNode> fClipNode;
42    const bool                fAntiAlias;
43
44    bool                      fNoop = false;
45
46    using INHERITED = EffectNode;
47};
48
49} // namespace sksg
50
51#endif // SkSGClipEffect_DEFINED
52