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 ROSEN_MODULES_TEXGINE_SRC_TEXGINE_DRAWING_TEXGINE_FONT_MANAGER_H
17 #define ROSEN_MODULES_TEXGINE_SRC_TEXGINE_DRAWING_TEXGINE_FONT_MANAGER_H
18 
19 #include <memory>
20 
21 #include "drawing.h"
22 
23 #include "texgine_font_style.h"
24 #include "texgine_font_style_set.h"
25 #include "texgine_typeface.h"
26 
27 namespace OHOS {
28 namespace Rosen {
29 namespace TextEngine {
30 class TexgineFontManager {
31 public:
32     TexgineFontManager();
33 
34     /*
35      * @brief Get default font manager
36      */
37     static std::shared_ptr<TexgineFontManager> RefDefault();
38 
39     /*
40      * @brief Get the font manager
41      */
42     std::shared_ptr<RSFontMgr> GetFontMgr() const;
43 
44     void SetFontMgr(const std::shared_ptr<RSFontMgr> mgr);
45 
46     /*
47      * @brief Use the system fallback to find a typeface for the given character.
48      * @param familyName The family names of user setting
49      *        style        The font style of user setting
50      *        bcp47[]      is a combination of ISO 639, 15924, and 3166-1 codes,
51      *                     so it is fine to just pass a ISO 639 here
52      *        bcp47Count   The length of bcp47[]
53      *        character    The character what you want to match typeface
54      * @return Will return nullptr if no family can be found
55      */
56     std::shared_ptr<TexgineTypeface> MatchFamilyStyleCharacter(const std::string &familyName,
57         const TexgineFontStyle &style, const char* bcp47[], int bcp47Count, int32_t character);
58 
59     /*
60      * @brief Get the font style set
61      * @param familyName The family names of user setting
62      * @return Never return nullptr, will return an empty set if the name is NULL
63      */
64     std::shared_ptr<TexgineFontStyleSet> MatchFamily(const std::string &familyName);
65 
66     std::shared_ptr<TexgineTypeface> MatchFamilyStyle(const std::string &familyName,
67         const TexgineFontStyle &style);
68 
69 private:
70     std::shared_ptr<RSFontMgr> fontMgr_ = nullptr;
71 };
72 } // namespace TextEngine
73 } // namespace Rosen
74 } // namespace OHOS
75 
76 #endif // ROSEN_MODULES_TEXGINE_SRC_TEXGINE_DRAWING_TEXGINE_FONT_MANAGER_H
77