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 SkSGGeometryTransform_DEFINED
9 #define SkSGGeometryTransform_DEFINED
10 
11 #include "SkSGGeometryNode.h"
12 
13 #include "SkPath.h"
14 
15 class SkMatrix;
16 
17 namespace sksg {
18 
19 class Transform;
20 
21 /**
22  * Concrete Effect node, binding a Matrix to a GeometryNode.
23  */
24 class GeometryTransform final : public GeometryNode {
25 public:
Make(sk_sp<GeometryNode> child,sk_sp<Transform> transform)26     static sk_sp<GeometryTransform> Make(sk_sp<GeometryNode> child, sk_sp<Transform> transform) {
27         return child && transform
28             ? sk_sp<GeometryTransform>(new GeometryTransform(std::move(child),
29                                                              std::move(transform)))
30             : nullptr;
31     }
32 
33     ~GeometryTransform() override;
34 
getTransform()35     const sk_sp<Transform>& getTransform() const { return fTransform; }
36 
37 protected:
38     void onClip(SkCanvas*, bool antiAlias) const override;
39     void onDraw(SkCanvas*, const SkPaint&) const override;
40 
41     SkRect onRevalidate(InvalidationController*, const SkMatrix&) override;
42     SkPath onAsPath() const override;
43 
44 private:
45     GeometryTransform(sk_sp<GeometryNode>, sk_sp<Transform>);
46 
47     const sk_sp<GeometryNode> fChild;
48     const sk_sp<Transform>    fTransform;
49     SkPath                    fTransformedPath;
50 
51     using INHERITED = GeometryNode;
52 };
53 
54 }
55 
56 #endif // SkSGGeometryTransform_DEFINED
57