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 "modules/sksg/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>, uint32_t inval_traits = 0); 24 ~EffectNode() override; 25 26 void onRender(SkCanvas*, const RenderContext*) const override; 27 const RenderNode* onNodeAt(const SkPoint&) const override; 28 29 SkRect onRevalidate(InvalidationController*, const SkMatrix&) override; 30 getChild()31 const sk_sp<RenderNode>& getChild() const { return fChild; } 32 33 private: 34 sk_sp<RenderNode> fChild; 35 36 typedef RenderNode INHERITED; 37 }; 38 39 } // namespace sksg 40 41 #endif // SkSGEffectNode_DEFINED 42