SkSGGeometryNode.h

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/*
 * 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 SkSGGeometryNode_DEFINED
#define SkSGGeometryNode_DEFINED
 
#include "modules/sksg/include/SkSGNode.h"
 
class SkCanvas;
class SkPaint;
class SkPath;
struct SkPoint;
 
namespace sksg {
 
/**
 * Base class for nodes which provide 'geometry' (as opposed to paint)
 * for drawing.
 *
 * Think SkRect, SkPath, etc.
 */
class GeometryNode : public Node {
public:
    void clip(SkCanvas*, bool antiAlias) const;
    void draw(SkCanvas*, const SkPaint&) const;
 
    bool contains(const SkPoint&) const;
 
    SkPath asPath() const;
 
protected:
    GeometryNode();
 
    virtual void onClip(SkCanvas*, bool antiAlias) const = 0;
 
    virtual void onDraw(SkCanvas*, const SkPaint&) const = 0;
 
    virtual bool onContains(const SkPoint&) const = 0;
 
    virtual SkPath onAsPath() const = 0;
 
private:
    friend class Draw; // wants to know the cached bounds.
 
    using INHERITED = Node;
};
 
} // namespace sksg
 
#endif // SkSGGeometryNode_DEFINED