flutter_flutter/content_handler/fuchsia_font_manager.h

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2.9 KiB
C++

/*
* Copyright 2017 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef TXT_FUCHSIA_FONT_MANAGER_H_
#define TXT_FUCHSIA_FONT_MANAGER_H_
#include <fuchsia/cpp/fonts.h>
#include <memory>
#include "lib/fxl/macros.h"
#include "third_party/skia/include/core/SkStream.h"
#include "third_party/skia/include/core/SkTypeface.h"
#include "third_party/skia/include/ports/SkFontMgr.h"
namespace txt {
class FuchsiaFontManager final : public SkFontMgr {
public:
FuchsiaFontManager(fonts::FontProviderSyncPtr provider);
~FuchsiaFontManager() override;
protected:
// |SkFontMgr|
int onCountFamilies() const override;
// |SkFontMgr|
void onGetFamilyName(int index, SkString* familyName) const override;
// |SkFontMgr|
SkFontStyleSet* onMatchFamily(const char familyName[]) const override;
// |SkFontMgr|
SkFontStyleSet* onCreateStyleSet(int index) const override;
// |SkFontMgr|
SkTypeface* onMatchFamilyStyle(const char familyName[],
const SkFontStyle&) const override;
// |SkFontMgr|
SkTypeface* onMatchFamilyStyleCharacter(const char familyName[],
const SkFontStyle&,
const char* bcp47[],
int bcp47Count,
SkUnichar character) const override;
// |SkFontMgr|
SkTypeface* onMatchFaceStyle(const SkTypeface*,
const SkFontStyle&) const override;
// |SkFontMgr|
sk_sp<SkTypeface> onMakeFromData(sk_sp<SkData>, int ttcIndex) const override;
// |SkFontMgr|
sk_sp<SkTypeface> onMakeFromStreamIndex(std::unique_ptr<SkStreamAsset>,
int ttcIndex) const override;
// |SkFontMgr|
sk_sp<SkTypeface> onMakeFromStreamArgs(std::unique_ptr<SkStreamAsset>,
const SkFontArguments&) const override;
// |SkFontMgr|
sk_sp<SkTypeface> onMakeFromFile(const char path[],
int ttcIndex) const override;
// |SkFontMgr|
sk_sp<SkTypeface> onLegacyMakeTypeface(const char familyName[],
SkFontStyle) const override;
FXL_DISALLOW_COPY_AND_ASSIGN(FuchsiaFontManager);
private:
mutable fonts::FontProviderSyncPtr font_provider_;
};
} // namespace txt
#endif // TXT_FUCHSIA_FONT_MANAGER_H_