blob: 3453d8902fa20fb9a22c6e90067e8f05ac899365 [file] [log] [blame]
// Copyright 2019 Google LLC.
#ifndef TypefaceFontProvider_DEFINED
#define TypefaceFontProvider_DEFINED
#include "include/private/base/SkTArray.h"
#include "src/core/SkTHash.h"
#include <string>
#include <unordered_map>
#include <vector>
#include "include/core/SkFontMgr.h"
#include "include/core/SkStream.h"
#include "include/core/SkString.h"
namespace skia {
namespace textlayout {
class TypefaceFontStyleSet : public SkFontStyleSet {
public:
explicit TypefaceFontStyleSet(const SkString& familyName);
int count() override;
void getStyle(int index, SkFontStyle*, SkString* name) override;
SkTypeface* createTypeface(int index) override;
SkTypeface* matchStyle(const SkFontStyle& pattern) override;
SkString getFamilyName() const { return fFamilyName; }
SkString getAlias() const { return fAlias; }
void appendTypeface(sk_sp<SkTypeface> typeface);
private:
SkTArray<sk_sp<SkTypeface>> fStyles;
SkString fFamilyName;
SkString fAlias;
};
class TypefaceFontProvider : public SkFontMgr {
public:
size_t registerTypeface(sk_sp<SkTypeface> typeface);
size_t registerTypeface(sk_sp<SkTypeface> typeface, const SkString& alias);
int onCountFamilies() const override;
void onGetFamilyName(int index, SkString* familyName) const override;
SkFontStyleSet* onMatchFamily(const char familyName[]) const override;
SkFontStyleSet* onCreateStyleSet(int) const override { return nullptr; }
SkTypeface* onMatchFamilyStyle(const char[], const SkFontStyle&) const override {
return nullptr;
}
SkTypeface* onMatchFamilyStyleCharacter(const char[], const SkFontStyle&,
const char*[], int,
SkUnichar) const override {
return nullptr;
}
sk_sp<SkTypeface> onMakeFromData(sk_sp<SkData>, int) const override { return nullptr; }
sk_sp<SkTypeface> onMakeFromStreamIndex(std::unique_ptr<SkStreamAsset>, int) const override {
return nullptr;
}
sk_sp<SkTypeface> onMakeFromStreamArgs(std::unique_ptr<SkStreamAsset>,
const SkFontArguments&) const override {
return nullptr;
}
sk_sp<SkTypeface> onMakeFromFile(const char[], int) const override {
return nullptr;
}
sk_sp<SkTypeface> onLegacyMakeTypeface(const char[], SkFontStyle) const override {
return nullptr;
}
private:
SkTHashMap<SkString, sk_sp<TypefaceFontStyleSet>> fRegisteredFamilies;
SkTArray<SkString> fFamilyNames;
};
} // namespace textlayout
} // namespace skia
#endif // TypefaceFontProvider_DEFINED