1 | // Copyright 2013 The Flutter Authors. All rights reserved. |
---|---|
2 | // Use of this source code is governed by a BSD-style license that can be |
3 | // found in the LICENSE file. |
4 | |
5 | #ifndef FLUTTER_LIB_UI_PAINTING_PATH_MEASURE_H_ |
6 | #define FLUTTER_LIB_UI_PAINTING_PATH_MEASURE_H_ |
7 | |
8 | #include <vector> |
9 | |
10 | #include "flutter/lib/ui/dart_wrapper.h" |
11 | #include "flutter/lib/ui/painting/path.h" |
12 | #include "third_party/skia/include/core/SkContourMeasure.h" |
13 | #include "third_party/skia/include/core/SkPath.h" |
14 | #include "third_party/tonic/typed_data/typed_list.h" |
15 | |
16 | namespace tonic { |
17 | class DartLibraryNatives; |
18 | } // namespace tonic |
19 | |
20 | // Be sure that the client doesn't modify a path on us before Skia finishes |
21 | // See AOSP's reasoning in PathMeasure.cpp |
22 | |
23 | namespace flutter { |
24 | |
25 | class CanvasPathMeasure : public RefCountedDartWrappable<CanvasPathMeasure> { |
26 | DEFINE_WRAPPERTYPEINFO(); |
27 | FML_FRIEND_MAKE_REF_COUNTED(CanvasPathMeasure); |
28 | |
29 | public: |
30 | ~CanvasPathMeasure() override; |
31 | static fml::RefPtr<CanvasPathMeasure> Create(const CanvasPath* path, |
32 | bool forceClosed); |
33 | |
34 | void setPath(const CanvasPath* path, bool isClosed); |
35 | float getLength(int contour_index); |
36 | tonic::Float32List getPosTan(int contour_index, float distance); |
37 | void getSegment(Dart_Handle path_handle, |
38 | int contour_index, |
39 | float start_d, |
40 | float stop_d, |
41 | bool start_with_move_to); |
42 | bool isClosed(int contour_index); |
43 | bool nextContour(); |
44 | |
45 | static void RegisterNatives(tonic::DartLibraryNatives* natives); |
46 | |
47 | const SkContourMeasureIter& pathMeasure() const { return *path_measure_; } |
48 | |
49 | private: |
50 | CanvasPathMeasure(); |
51 | |
52 | std::unique_ptr<SkContourMeasureIter> path_measure_; |
53 | std::vector<sk_sp<SkContourMeasure>> measures_; |
54 | }; |
55 | |
56 | } // namespace flutter |
57 | |
58 | #endif // FLUTTER_LIB_UI_PAINTING_PATH_MEASURE_H_ |
59 |