1 // Copyright 2019 Google LLC.
2 #include "modules/skparagraph/include/TypefaceFontProvider.h"
3 #include <algorithm>
4 #include "include/core/SkFontMgr.h"
5 #include "include/core/SkString.h"
6 #include "include/core/SkTypeface.h"
7 #include "src/core/SkFontDescriptor.h"
8
9 namespace skia {
10 namespace textlayout {
11
onCountFamilies() const12 int TypefaceFontProvider::onCountFamilies() const { return fRegisteredFamilies.count(); }
13
onGetFamilyName(int index,SkString * familyName) const14 void TypefaceFontProvider::onGetFamilyName(int index, SkString* familyName) const {
15 SkASSERT(index < fRegisteredFamilies.count());
16 familyName->set(fFamilyNames[index]);
17 }
18
onMatchFamily(const char familyName[]) const19 SkFontStyleSet* TypefaceFontProvider::onMatchFamily(const char familyName[]) const {
20 auto found = fRegisteredFamilies.find(SkString(familyName));
21 if (found) {
22 return SkRef((*found).get());
23 }
24 return nullptr;
25 }
26
registerTypeface(sk_sp<SkTypeface> typeface)27 size_t TypefaceFontProvider::registerTypeface(sk_sp<SkTypeface> typeface) {
28 if (typeface == nullptr) {
29 return 0;
30 }
31
32 SkString familyName;
33 typeface->getFamilyName(&familyName);
34
35 return registerTypeface(std::move(typeface), std::move(familyName));
36 }
37
registerTypeface(sk_sp<SkTypeface> typeface,const SkString & familyName)38 size_t TypefaceFontProvider::registerTypeface(sk_sp<SkTypeface> typeface, const SkString& familyName) {
39 if (familyName.size() == 0) {
40 return 0;
41 }
42
43 auto found = fRegisteredFamilies.find(familyName);
44 if (found == nullptr) {
45 found = fRegisteredFamilies.set(familyName, sk_make_sp<TypefaceFontStyleSet>(familyName));
46 fFamilyNames.emplace_back(familyName);
47 }
48
49 (*found)->appendTypeface(std::move(typeface));
50
51 return 1;
52 }
53
TypefaceFontStyleSet(const SkString & familyName)54 TypefaceFontStyleSet::TypefaceFontStyleSet(const SkString& familyName)
55 : fFamilyName(familyName) {}
56
count()57 int TypefaceFontStyleSet::count() { return fStyles.size(); }
58
getStyle(int index,SkFontStyle * style,SkString * name)59 void TypefaceFontStyleSet::getStyle(int index, SkFontStyle* style, SkString* name) {
60 SkASSERT(index < fStyles.count());
61 if (style) {
62 *style = fStyles[index]->fontStyle();
63 }
64 if (name) {
65 *name = fFamilyName;
66 }
67 }
68
createTypeface(int index)69 SkTypeface* TypefaceFontStyleSet::createTypeface(int index) {
70 SkASSERT(index < fStyles.count());
71 return SkRef(fStyles[index].get());
72 }
73
matchStyle(const SkFontStyle & pattern)74 SkTypeface* TypefaceFontStyleSet::matchStyle(const SkFontStyle& pattern) {
75 return this->matchStyleCSS3(pattern);
76 }
77
appendTypeface(sk_sp<SkTypeface> typeface)78 void TypefaceFontStyleSet::appendTypeface(sk_sp<SkTypeface> typeface) {
79 if (typeface.get() != nullptr) {
80 fStyles.emplace_back(std::move(typeface));
81 }
82 }
83
84 } // namespace textlayout
85 } // namespace skia
86