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 SkSGMerge_DEFINED |
9 | #define SkSGMerge_DEFINED |
10 | |
11 | #include "modules/sksg/include/SkSGGeometryNode.h" |
12 | |
13 | #include "include/core/SkPath.h" |
14 | |
15 | #include <vector> |
16 | |
17 | class SkCanvas; |
18 | class SkPaint; |
19 | |
20 | namespace sksg { |
21 | |
22 | /** |
23 | * Concrete Geometry node, combining other geometries based on Mode. |
24 | */ |
25 | class Merge final : public GeometryNode { |
26 | public: |
27 | enum class Mode { |
28 | // Append path mode. |
29 | kMerge, |
30 | |
31 | // SkPathOp ops. |
32 | kUnion, |
33 | kIntersect, |
34 | kDifference, |
35 | kReverseDifference, |
36 | kXOR, |
37 | }; |
38 | |
39 | struct Rec { |
40 | sk_sp<GeometryNode> fGeo; |
41 | Mode fMode; |
42 | }; |
43 | |
44 | static sk_sp<Merge> Make(std::vector<Rec>&& recs) { |
45 | return sk_sp<Merge>(new Merge(std::move(recs))); |
46 | } |
47 | |
48 | ~Merge() override; |
49 | |
50 | protected: |
51 | void onClip(SkCanvas*, bool antiAlias) const override; |
52 | void onDraw(SkCanvas*, const SkPaint&) const override; |
53 | bool onContains(const SkPoint&) const override; |
54 | |
55 | SkRect onRevalidate(InvalidationController*, const SkMatrix&) override; |
56 | SkPath onAsPath() const override; |
57 | |
58 | private: |
59 | Merge(std::vector<Rec>&& recs); |
60 | |
61 | const std::vector<Rec> fRecs; |
62 | SkPath fMerged; |
63 | |
64 | using INHERITED = GeometryNode; |
65 | }; |
66 | |
67 | } // namespace sksg |
68 | |
69 | #endif // SkSGMerge_DEFINED |
70 | |