1 /*
2  * Copyright (c) 2022 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_SVG_PARSE_SVG_USE_H
17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_SVG_PARSE_SVG_USE_H
18 
19 #include "core/components_ng/svg/parse/svg_attributes_parser.h"
20 #include "core/components_ng/svg/parse/svg_graphic.h"
21 
22 namespace OHOS::Ace::NG {
23 
24 class SvgUse : public SvgGraphic {
25     DECLARE_ACE_TYPE(SvgUse, SvgGraphic);
26 
27 public:
28     SvgUse();
29     ~SvgUse() override = default;
30 
31     static RefPtr<SvgNode> Create();
32 
33     void OnInitStyle() override;
34     RSRecordingPath AsPath(const Size& viewPort) const override;
35     void OnDraw(RSCanvas& canvas, const Size& layout, const std::optional<Color>& color) override;
36     bool ParseAndSetSpecializedAttr(const std::string& name, const std::string& value) override;
37 
38 private:
39     // saves the current attributes of the svg node, and restores them when the scope exits.
40     class AttributeScope {
41     public:
42         explicit AttributeScope(const RefPtr<SvgNode>& node);
43         ~AttributeScope();
44 
45     private:
46         SvgBaseAttribute attributes_;
47         WeakPtr<SvgNode> node_;
48     };
49     SvgAttributes useAttr_;
50 };
51 
52 } // namespace OHOS::Ace::NG
53 
54 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_SVG_PARSE_SVG_USE_H