1 /*
2 * Copyright 2015 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 * 2023.4.23 SkFontMgr on ohos.
7 * Copyright (c) 2023 Huawei Device Co., Ltd. All rights reserved.
8 */
9
10 #ifndef SKFONTMGR_OHOS_H
11 #define SKFONTMGR_OHOS_H
12
13 #include "FontConfig_ohos.h"
14 #include "SkFontDescriptor.h"
15 #include "SkFontMgr.h"
16 #include "SkFontStyleSet_ohos.h"
17
18 /*!
19 * \brief To implement the SkFontMgr for ohos platform
20 */
21 class SK_API SkFontMgr_OHOS : public SkFontMgr {
22 public:
23 explicit SkFontMgr_OHOS(const char* path = nullptr);
24 ~SkFontMgr_OHOS() override = default;
25
26 int GetFontFullName(int fontFd, std::vector<SkByteArray> &fullnameVec) override;
27 protected:
28 int onCountFamilies() const override;
29 void onGetFamilyName(int index, SkString* familyName) const override;
30 SkFontStyleSet* onCreateStyleSet(int index)const override;
31
32 SkFontStyleSet* onMatchFamily(const char familyName[]) const override;
33
34 SkTypeface* onMatchFamilyStyle(const char familyName[],
35 const SkFontStyle& style) const override;
36 SkTypeface* onMatchFamilyStyleCharacter(const char familyName[], const SkFontStyle& style,
37 const char* bcp47[], int bcp47Count,
38 SkUnichar character) const override;
39
40 SkTypeface* onMatchFaceStyle(const SkTypeface* typeface,
41 const SkFontStyle& style) const override;
42
43 sk_sp<SkTypeface> onMakeFromData(sk_sp<SkData> data, int ttcIndex) const override;
44 sk_sp<SkTypeface> onMakeFromStreamIndex(std::unique_ptr<SkStreamAsset> stream,
45 int ttcIndex) const override;
46 sk_sp<SkTypeface> onMakeFromStreamArgs(std::unique_ptr<SkStreamAsset> stream,
47 const SkFontArguments& args) const override;
48 sk_sp<SkTypeface> onMakeFromFile(const char path[], int ttcIndex) const override;
49
50 sk_sp<SkTypeface> onLegacyMakeTypeface(const char familyName[], SkFontStyle style) const override;
51
52 #ifdef OHOS_SUPPORT
53 std::vector<sk_sp<SkTypeface>> onGetSystemFonts() const override;
54 #endif
55
56 private:
57 std::shared_ptr<FontConfig_OHOS> fFontConfig = nullptr; // the pointer of FontConfig_OHOS
58 SkTypeface_FreeType::Scanner fFontScanner; // the scanner to parse a font file
59 int fFamilyCount = 0; // the count of font style sets in generic family list
60
61 static int compareLangs(const std::string& langs, const char* bcp47[], int bcp47Count);
62 sk_sp<SkTypeface> makeTypeface(std::unique_ptr<SkStreamAsset> stream,
63 const SkFontArguments& args, const char path[]) const;
64 SkTypeface* findTypeface(const SkFontStyle& style,
65 const char* bcp47[], int bcp47Count,
66 SkUnichar character) const;
67 SkTypeface* findSpecialTypeface(SkUnichar character, const SkFontStyle& style) const;
68 };
69
70 SK_API sk_sp<SkFontMgr> SkFontMgr_New_OHOS(const char* path);
SkFontMgr_New_OHOS()71 SK_API sk_sp<SkFontMgr> SkFontMgr_New_OHOS() {
72 return SkFontMgr_New_OHOS("/system/etc/fontconfig_ohos.json");
73 }
74
75
76 #endif /* SKFONTMGR_OHOS_H */
77