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 SkSGGroup_DEFINED |
9 | #define SkSGGroup_DEFINED |
10 | |
11 | #include "modules/sksg/include/SkSGRenderNode.h" |
12 | |
13 | #include <vector> |
14 | |
15 | namespace sksg { |
16 | |
17 | /** |
18 | * Concrete node, grouping together multiple descendants. |
19 | */ |
20 | class Group : public RenderNode { |
21 | public: |
22 | static sk_sp<Group> Make() { |
23 | return sk_sp<Group>(new Group(std::vector<sk_sp<RenderNode>>())); |
24 | } |
25 | |
26 | static sk_sp<Group> Make(std::vector<sk_sp<RenderNode>> children) { |
27 | return sk_sp<Group>(new Group(std::move(children))); |
28 | } |
29 | |
30 | void addChild(sk_sp<RenderNode>); |
31 | void removeChild(const sk_sp<RenderNode>&); |
32 | |
33 | size_t size() const { return fChildren.size(); } |
34 | bool empty() const { return fChildren.empty(); } |
35 | void clear(); |
36 | |
37 | protected: |
38 | explicit Group(std::vector<sk_sp<RenderNode>>); |
39 | ~Group() override; |
40 | |
41 | void onRender(SkCanvas*, const RenderContext*) const override; |
42 | const RenderNode* onNodeAt(const SkPoint&) const override; |
43 | |
44 | SkRect onRevalidate(InvalidationController*, const SkMatrix&) override; |
45 | |
46 | private: |
47 | std::vector<sk_sp<RenderNode>> fChildren; |
48 | bool fRequiresIsolation = true; |
49 | |
50 | typedef RenderNode INHERITED; |
51 | }; |
52 | |
53 | } // namespace sksg |
54 | |
55 | #endif // SkSGGroup_DEFINED |
56 |