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/*
* Copyright 2024 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SKFONTSCANNER_H_
#define SKFONTSCANNER_H_
#include "include/core/SkFontArguments.h"
#include "include/core/SkFontParameters.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkTypes.h"
#include "include/private/base/SkFixed.h"
#include "include/private/base/SkNoncopyable.h"
#include "include/private/base/SkTArray.h"
class SkFontStyle;
class SkStreamAsset;
class SkString;
class SkTypeface;
class SkFontScanner : public SkNoncopyable {
public:
virtual ~SkFontScanner() = default;
using AxisDefinitions = skia_private::STArray<4, SkFontParameters::Variation::Axis, true>;
using VariationPosition = skia_private::STArray<4, SkFontArguments::VariationPosition::Coordinate, true>;
virtual bool scanFile(SkStreamAsset* stream, int* numFaces) const = 0;
virtual bool scanFace(SkStreamAsset* stream, int faceIndex, int* numInstances) const = 0;
/* instanceIndex 0 is the default instance, 1 to numInstances are the named instances. */
virtual bool scanInstance(SkStreamAsset* stream,
int faceIndex,
int instanceIndex,
SkString* name,
SkFontStyle* style,
bool* isFixedPitch,
AxisDefinitions* axes,
VariationPosition* position) const = 0;
virtual sk_sp<SkTypeface> MakeFromStream(std::unique_ptr<SkStreamAsset> stream,
const SkFontArguments& args) const = 0;
virtual SkFourByteTag getFactoryId() const = 0;
};
#endif // SKFONTSCANNER_H_
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