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 SkSGGeometryNode_DEFINED |
9 | #define SkSGGeometryNode_DEFINED |
10 | |
11 | #include "modules/sksg/include/SkSGNode.h" |
12 | |
13 | class SkCanvas; |
14 | class SkPaint; |
15 | class SkPath; |
16 | |
17 | namespace sksg { |
18 | |
19 | /** |
20 | * Base class for nodes which provide 'geometry' (as opposed to paint) |
21 | * for drawing. |
22 | * |
23 | * Think SkRect, SkPath, etc. |
24 | */ |
25 | class GeometryNode : public Node { |
26 | public: |
27 | void clip(SkCanvas*, bool antiAlias) const; |
28 | void draw(SkCanvas*, const SkPaint&) const; |
29 | |
30 | bool contains(const SkPoint&) const; |
31 | |
32 | SkPath asPath() const; |
33 | |
34 | protected: |
35 | GeometryNode(); |
36 | |
37 | virtual void onClip(SkCanvas*, bool antiAlias) const = 0; |
38 | |
39 | virtual void onDraw(SkCanvas*, const SkPaint&) const = 0; |
40 | |
41 | virtual bool onContains(const SkPoint&) const = 0; |
42 | |
43 | virtual SkPath onAsPath() const = 0; |
44 | |
45 | private: |
46 | friend class Draw; // wants to know the cached bounds. |
47 | |
48 | typedef Node INHERITED; |
49 | }; |
50 | |
51 | } // namespace sksg |
52 | |
53 | #endif // SkSGGeometryNode_DEFINED |
54 | |