1 /*
2 * Copyright (c) 2021 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "animation/rs_animation_timing_curve.h"
17
18 #include <memory>
19
20 #include "animation/rs_cubic_bezier_interpolator.h"
21 #include "animation/rs_interpolator.h"
22 #include "animation/rs_spring_interpolator.h"
23
24 namespace OHOS {
25 namespace Rosen {
26 const RSAnimationTimingCurve RSAnimationTimingCurve::LINEAR =
27 RSAnimationTimingCurve(std::make_shared<LinearInterpolator>());
28
29 const RSAnimationTimingCurve RSAnimationTimingCurve::EASE =
30 RSAnimationTimingCurve::CreateCubicCurve(0.25f, 0.1f, 0.25f, 1.0f);
31
32 const RSAnimationTimingCurve RSAnimationTimingCurve::EASE_IN =
33 RSAnimationTimingCurve::CreateCubicCurve(0.42f, 0.0f, 1.0f, 1.0f);
34
35 const RSAnimationTimingCurve RSAnimationTimingCurve::EASE_OUT =
36 RSAnimationTimingCurve::CreateCubicCurve(0.0f, 0.0f, 0.58f, 1.0f);
37
38 const RSAnimationTimingCurve RSAnimationTimingCurve::EASE_IN_OUT =
39 RSAnimationTimingCurve::CreateCubicCurve(0.42f, 0.0f, 0.58f, 1.0f);
40
41 const RSAnimationTimingCurve RSAnimationTimingCurve::DEFAULT = EASE_IN_OUT;
42
RSAnimationTimingCurve()43 RSAnimationTimingCurve::RSAnimationTimingCurve()
44 : RSAnimationTimingCurve(std::make_shared<RSCubicBezierInterpolator>(0.42f, 0.0f, 0.58f, 1.0f))
45 {}
46
RSAnimationTimingCurve(const std::shared_ptr<RSInterpolator> & interpolator)47 RSAnimationTimingCurve::RSAnimationTimingCurve(const std::shared_ptr<RSInterpolator>& interpolator)
48 : interpolator_(interpolator), customCurveFunc_(nullptr)
49 {}
50
RSAnimationTimingCurve(const std::function<float (float)> & customCurveFunc)51 RSAnimationTimingCurve::RSAnimationTimingCurve(const std::function<float(float)>& customCurveFunc)
52 : interpolator_(nullptr), customCurveFunc_(customCurveFunc)
53 {}
54
CreateCustomCurve(const std::function<float (float)> & customCurveFunc)55 RSAnimationTimingCurve RSAnimationTimingCurve::CreateCustomCurve(const std::function<float(float)>& customCurveFunc)
56 {
57 return RSAnimationTimingCurve(customCurveFunc);
58 }
59
CreateCubicCurve(float ctrlX1,float ctrlY1,float ctrlX2,float ctrlY2)60 RSAnimationTimingCurve RSAnimationTimingCurve::CreateCubicCurve(float ctrlX1, float ctrlY1, float ctrlX2, float ctrlY2)
61 {
62 return RSAnimationTimingCurve(std::make_shared<RSCubicBezierInterpolator>(ctrlX1, ctrlY1, ctrlX2, ctrlY2));
63 }
64
CreateSpringCurve(float velocity,float mass,float stiffness,float damping)65 RSAnimationTimingCurve RSAnimationTimingCurve::CreateSpringCurve(
66 float velocity, float mass, float stiffness, float damping)
67 {
68 float response = 1.0;
69 float dampingRatio = (damping / (2 * sqrt(mass * stiffness)));
70 return RSAnimationTimingCurve(std::make_shared<RSSpringInterpolator>(response, dampingRatio, velocity));
71 }
72
GetInterpolator(int duration) const73 std::shared_ptr<RSInterpolator> RSAnimationTimingCurve::GetInterpolator(int duration) const
74 {
75 if (customCurveFunc_ != nullptr) {
76 return std::make_shared<RSCustomInterpolator>(customCurveFunc_, duration);
77 }
78
79 return interpolator_;
80 }
81 } // namespace Rosen
82 } // namespace OHOS
83