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1 /*
2  * Copyright 2017 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 SkSGEffectNode_DEFINED
9 #define SkSGEffectNode_DEFINED
10 
11 #include "SkSGRenderNode.h"
12 
13 namespace sksg {
14 
15 /**
16  * Base class for nodes which apply some transformation when rendering
17  * their descendants.
18  *
19  * This includes transforms, clipping, filters, etc.
20  */
21 class EffectNode : public RenderNode {
22 protected:
23     explicit EffectNode(sk_sp<RenderNode>);
24     ~EffectNode() override;
25 
26     void onRender(SkCanvas*, const RenderContext*) const override;
27 
28     SkRect onRevalidate(InvalidationController*, const SkMatrix&) override;
29 
30 private:
31     sk_sp<RenderNode> fChild;
32 
33     typedef RenderNode INHERITED;
34 };
35 
36 } // namespace sksg
37 
38 #endif // SkSGEffectNode_DEFINED
39