1 /*
2  * Copyright (c) 2023 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 #ifndef FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERNS_IMAGE_IMAGE_MODIFIER_H
17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERNS_IMAGE_IMAGE_MODIFIER_H
18 
19 #include "core/components_ng/base/modifier.h"
20 #include "core/components_ng/pattern/image/image_render_property.h"
21 #include "core/components_ng/property/property.h"
22 #include "core/components_ng/render/animation_utils.h"
23 #include "core/components_ng/render/canvas_image.h"
24 #include "core/components_ng/render/image_painter.h"
25 
26 namespace OHOS::Ace::NG {
27 constexpr float ANIMATION_END = 1.0f; // The image animation end with 1.0
28 constexpr uint32_t TWICE = 2;         // use to calculate image new width and height
29 constexpr double EPSILON = 0.0001;    // use to judge the end of action
30 
31 // not in use, causes performance issues
32 class ImageModifier : public ContentModifier {
33     DECLARE_ACE_TYPE(ImageModifier, ContentModifier);
34 
35 public:
36     ImageModifier();
37     ~ImageModifier() override = default;
38     void onDraw(DrawingContext& context) override;
39     void SetImageFit(ImageFit imagefit);
40     void UpdateImageData(const WeakPtr<CanvasImage>& canvasImage, const OffsetF& offset, const SizeF& contentSize);
41     void Modify();
42     void SetIsAltImage(bool isAltImage);
43 
44 private:
45     float GetValue(float value) const;
46     void DrawImageWithAnimation(DrawingContext& context);
47     void DrawImageWithoutAnimation(DrawingContext& context) const;
48     void UpdatePaintConfig(float ratio);
49     OffsetF offset_;
50     SizeF contentSize_;
51     RectF startSrcRect_;
52     RectF endSrcRect_;
53     RectF startDstRect_;
54     RectF endDstRect_;
55     ImageFit startImageFit_ = ImageFit::COVER;
56     ImageFit endImageFit_ = ImageFit::COVER;
57     bool isFirst_ = true;
58     WeakPtr<CanvasImage> canvasImage_;
59     RefPtr<AnimatablePropertyFloat> imageFit_;
60     RefPtr<PropertyBool> flag_;
61     bool isAltImage_ = false;
62 
63     ACE_DISALLOW_COPY_AND_MOVE(ImageModifier);
64 };
65 } // namespace OHOS::Ace::NG
66 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERNS_IMAGE_IMAGE_MODIFIER_H
67