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#include "SkSGTransform.h"
15
16class SkMatrix;
17
18namespace sksg {
19
20/**
21 * Concrete Effect node, binding a Matrix to a GeometryNode.
22 */
23class GeometryTransform final : public GeometryNode {
24public:
25    static sk_sp<GeometryTransform> Make(sk_sp<GeometryNode> child, sk_sp<Matrix> matrix) {
26        return child && matrix
27            ? sk_sp<GeometryTransform>(new GeometryTransform(std::move(child), std::move(matrix)))
28            : nullptr;
29    }
30
31    static sk_sp<GeometryTransform> Make(sk_sp<GeometryNode> child, const SkMatrix& m) {
32        return Make(std::move(child), Matrix::Make(m));
33    }
34
35    ~GeometryTransform() override;
36
37    const sk_sp<Matrix>& getMatrix() const { return fMatrix; }
38
39protected:
40    void onClip(SkCanvas*, bool antiAlias) const override;
41    void onDraw(SkCanvas*, const SkPaint&) const override;
42
43    SkRect onRevalidate(InvalidationController*, const SkMatrix&) override;
44    SkPath onAsPath() const override;
45
46private:
47    GeometryTransform(sk_sp<GeometryNode>, sk_sp<Matrix>);
48
49    const sk_sp<GeometryNode> fChild;
50    const sk_sp<Matrix>       fMatrix;
51    SkPath                    fTransformed;
52
53    using INHERITED = GeometryNode;
54};
55
56}
57
58#endif // SkSGGeometryTransform_DEFINED
59