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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 #ifndef FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_TEXT_TEXT_THEME_H
17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_TEXT_TEXT_THEME_H
18 
19 #include "core/components/common/properties/text_style.h"
20 #include "core/components/theme/theme.h"
21 #include "core/components/theme/theme_constants.h"
22 #include "core/components/theme/theme_constants_defines.h"
23 
24 namespace OHOS::Ace {
25 
26 /**
27  * TextTheme defines color and styles of ThemeComponent. TextTheme should be built
28  * using TextTheme::Builder.
29  */
30 class TextTheme : public virtual Theme {
31     DECLARE_ACE_TYPE(TextTheme, Theme);
32 
33 public:
34     class Builder {
35     public:
36         Builder() = default;
37         ~Builder() = default;
38 
Build(const RefPtr<ThemeConstants> & themeConstants)39         RefPtr<TextTheme> Build(const RefPtr<ThemeConstants>& themeConstants) const
40         {
41             RefPtr<TextTheme> theme = AceType::Claim(new TextTheme());
42             if (!themeConstants) {
43                 return theme;
44             }
45             theme->textStyle_.SetTextColor(themeConstants->GetColor(THEME_OHOS_COLOR_TEXT_PRIMARY));
46             theme->textStyle_.SetFontSize(themeConstants->GetDimension(THEME_TEXT_SIZE));
47             // Styles below do not need to get from ThemeConstants, directly set at here.
48             theme->textStyle_.SetFontStyle(FontStyle::NORMAL);
49             theme->textStyle_.SetFontWeight(FontWeight::NORMAL);
50             theme->textStyle_.SetTextDecoration(TextDecoration::NONE);
51             ParsePattern(themeConstants->GetThemeStyle(), theme);
52             return theme;
53         }
54     private:
ParsePattern(const RefPtr<ThemeStyle> & themeStyle,const RefPtr<TextTheme> & theme)55         void ParsePattern(const RefPtr<ThemeStyle>& themeStyle, const RefPtr<TextTheme>& theme) const
56         {
57             if (!themeStyle) {
58                 return;
59             }
60             auto pattern = themeStyle->GetAttr<RefPtr<ThemeStyle>>(THEME_PATTERN_TEXT, nullptr);
61             if (!pattern) {
62                 LOGW("find pattern of text fail");
63                 return;
64             }
65             theme->textStyle_.SetTextColor(pattern->GetAttr<Color>(PATTERN_TEXT_COLOR, Color::BLACK)
66                                                .BlendOpacity(pattern->GetAttr<double>(PATTERN_TEXT_COLOR_ALPHA, 0.9)));
67             theme->selectedColor_ = pattern->GetAttr<Color>(PATTERN_BG_COLOR_SELECTED, Color(0x33007dff));
68         }
69     };
70 
71     ~TextTheme() override = default;
72 
GetTextStyle()73     TextStyle GetTextStyle() const
74     {
75         return textStyle_;
76     }
77 
GetSelectedColor()78     const Color& GetSelectedColor() const
79     {
80         return selectedColor_;
81     }
82 
83 protected:
84     TextTheme() = default;
85 
86 private:
87     TextStyle textStyle_;
88     Color selectedColor_;
89 };
90 
91 } // namespace OHOS::Ace
92 
93 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_TEXT_TEXT_THEME_H
94