blob: 175637de9d7500e4344819673e5a59f540a33cc5 [file] [log] [blame]
// Copyright 2019 Google LLC.
#ifndef FontCollection_DEFINED
#define FontCollection_DEFINED
#include <memory>
#include <optional>
#include <set>
#include "include/core/SkFontMgr.h"
#include "include/core/SkRefCnt.h"
#include "modules/skparagraph/include/FontArguments.h"
#include "modules/skparagraph/include/ParagraphCache.h"
#include "modules/skparagraph/include/TextStyle.h"
#include "src/core/SkTHash.h"
namespace skia {
namespace textlayout {
class TextStyle;
class Paragraph;
class FontCollection : public SkRefCnt {
public:
FontCollection();
size_t getFontManagersCount() const;
void setAssetFontManager(sk_sp<SkFontMgr> fontManager);
void setDynamicFontManager(sk_sp<SkFontMgr> fontManager);
void setTestFontManager(sk_sp<SkFontMgr> fontManager);
void setDefaultFontManager(sk_sp<SkFontMgr> fontManager);
void setDefaultFontManager(sk_sp<SkFontMgr> fontManager, const char defaultFamilyName[]);
void setDefaultFontManager(sk_sp<SkFontMgr> fontManager, const std::vector<SkString>& defaultFamilyNames);
sk_sp<SkFontMgr> getFallbackManager() const { return fDefaultFontManager; }
std::vector<sk_sp<SkTypeface>> findTypefaces(const std::vector<SkString>& familyNames, SkFontStyle fontStyle);
std::vector<sk_sp<SkTypeface>> findTypefaces(const std::vector<SkString>& familyNames, SkFontStyle fontStyle, const std::optional<FontArguments>& fontArgs);
sk_sp<SkTypeface> defaultFallback(SkUnichar unicode, SkFontStyle fontStyle, const SkString& locale);
sk_sp<SkTypeface> defaultFallback();
void disableFontFallback();
void enableFontFallback();
bool fontFallbackEnabled() { return fEnableFontFallback; }
ParagraphCache* getParagraphCache() { return &fParagraphCache; }
void clearCaches();
private:
std::vector<sk_sp<SkFontMgr>> getFontManagerOrder() const;
sk_sp<SkTypeface> matchTypeface(const SkString& familyName, SkFontStyle fontStyle);
struct FamilyKey {
FamilyKey(const std::vector<SkString>& familyNames, SkFontStyle style, const std::optional<FontArguments>& args)
: fFamilyNames(familyNames), fFontStyle(style), fFontArguments(args) {}
FamilyKey() {}
std::vector<SkString> fFamilyNames;
SkFontStyle fFontStyle;
std::optional<FontArguments> fFontArguments;
bool operator==(const FamilyKey& other) const;
struct Hasher {
size_t operator()(const FamilyKey& key) const;
};
};
bool fEnableFontFallback;
SkTHashMap<FamilyKey, std::vector<sk_sp<SkTypeface>>, FamilyKey::Hasher> fTypefaces;
sk_sp<SkFontMgr> fDefaultFontManager;
sk_sp<SkFontMgr> fAssetFontManager;
sk_sp<SkFontMgr> fDynamicFontManager;
sk_sp<SkFontMgr> fTestFontManager;
std::vector<SkString> fDefaultFamilyNames;
ParagraphCache fParagraphCache;
};
} // namespace textlayout
} // namespace skia
#endif // FontCollection_DEFINED