1/*
2 * Copyright 2020 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 SkottieTransform_DEFINED
9#define SkottieTransform_DEFINED
10
11#include "include/core/SkM44.h"
12#include "include/core/SkMatrix.h"
13#include "include/core/SkPoint.h"
14#include "modules/skottie/src/Adapter.h"
15#include "modules/skottie/src/SkottieValue.h"
16#include "modules/sksg/include/SkSGTransform.h"
17
18namespace skjson {
19
20class ObjectValue;
21
22} // namespace skjson
23
24namespace skottie {
25namespace internal {
26
27class TransformAdapter2D final : public DiscardableAdapterBase<TransformAdapter2D,
28 sksg::Matrix<SkMatrix>> {
29public:
30 TransformAdapter2D(const AnimationBuilder&,
31 const skjson::ObjectValue* janchor_point,
32 const skjson::ObjectValue* jposition,
33 const skjson::ObjectValue* jscale,
34 const skjson::ObjectValue* jrotation,
35 const skjson::ObjectValue* jskew,
36 const skjson::ObjectValue* jskew_axis,
37 bool auto_orient = false);
38 ~TransformAdapter2D() override;
39
40 // Accessors needed for public property APIs.
41 // TODO: introduce a separate public type.
42 SkPoint getAnchorPoint() const;
43 void setAnchorPoint(const SkPoint&);
44
45 SkPoint getPosition() const;
46 void setPosition(const SkPoint&);
47
48 SkVector getScale() const;
49 void setScale(const SkVector&);
50
51 float getRotation() const { return fRotation; }
52 void setRotation(float r);
53
54 float getSkew() const { return fSkew; }
55 void setSkew(float sk);
56
57 float getSkewAxis() const { return fSkewAxis; }
58 void setSkewAxis(float sa );
59
60 SkMatrix totalMatrix() const;
61
62private:
63 void onSync() override;
64
65 Vec2Value fAnchorPoint = { 0, 0 },
66 fPosition = { 0, 0 },
67 fScale = { 100, 100 };
68 ScalarValue fRotation = 0,
69 fSkew = 0,
70 fSkewAxis = 0,
71 fOrientation = 0; // additional rotation component controlled by auto-orient
72
73 using INHERITED = DiscardableAdapterBase<TransformAdapter2D, sksg::Matrix<SkMatrix>>;
74};
75
76class TransformAdapter3D : public DiscardableAdapterBase<TransformAdapter3D, sksg::Matrix<SkM44>> {
77public:
78 TransformAdapter3D(const skjson::ObjectValue&, const AnimationBuilder&);
79 ~TransformAdapter3D() override;
80
81 virtual SkM44 totalMatrix() const;
82
83protected:
84 SkV3 anchor_point() const;
85 SkV3 position() const;
86 SkV3 rotation() const;
87
88private:
89 void onSync() final;
90
91 VectorValue fAnchorPoint,
92 fPosition,
93 fOrientation,
94 fScale = { 100, 100, 100 };
95 ScalarValue fRx = 0,
96 fRy = 0,
97 fRz = 0;
98
99 using INHERITED = DiscardableAdapterBase<TransformAdapter3D, sksg::Matrix<SkM44>>;
100};
101
102} // namespace internal
103} // namespace skottie
104
105#endif // SkottieTransform_DEFINED
106