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 "core/animation/animatable_data.h"
17
18 namespace OHOS::Ace {
19
20 template<>
Blend(const Dimension & start,const Dimension & end,float process)21 Dimension AnimatableData<Dimension>::Blend(
22 const Dimension& start, const Dimension& end, float process)
23 {
24 float scaleA = process;
25 float scaleB = 0.0f;
26 if (!NearEqual(process, 1.0f)) {
27 scaleB = 1.0f - process;
28 }
29 return start * scaleB + end * scaleA;
30 }
31
32 template<>
Blend(const Color & start,const Color & end,float process)33 Color AnimatableData<Color>::Blend(
34 const Color& start, const Color& end, float process)
35 {
36 float startA = start.GetAlpha();
37 float startR = start.GetRed();
38 float startG = start.GetGreen();
39 float startB = start.GetBlue();
40 uint8_t alpha = static_cast<uint8_t>(startA + (end.GetAlpha() - startA) * process);
41 uint8_t red = static_cast<uint8_t>(startR + (end.GetRed() - startR) * process);
42 uint8_t green = static_cast<uint8_t>(startG + (end.GetGreen() - startG) * process);
43 uint8_t blue = static_cast<uint8_t>(startB + (end.GetBlue() - startB) * process);
44 return Color::FromARGB(alpha, red, green, blue);
45 }
46
47 template<>
Blend(const BorderStyle & start,const BorderStyle & end,float process)48 BorderStyle AnimatableData<BorderStyle>::Blend(const BorderStyle& start, const BorderStyle& end, float process)
49 {
50 if (process > 0.5f) {
51 return end;
52 }
53 return start;
54 }
55
56 template<>
Blend(const Shadow & start,const Shadow & end,float process)57 Shadow AnimatableData<Shadow>::Blend(const Shadow& start, const Shadow& end, float process)
58 {
59 return Shadow::Blend(end, start, process);
60 }
61
62 template<>
Blend(const BackgroundImageSize & start,const BackgroundImageSize & end,float process)63 BackgroundImageSize AnimatableData<BackgroundImageSize>::Blend(
64 const BackgroundImageSize& start, const BackgroundImageSize& end, float process)
65 {
66 float scaleA = process;
67 float tmp = 1.0f;
68 float scaleB = tmp - process;
69 return start * scaleB + end * scaleA;
70 }
71
72 } // namespace OHOS::Ace