skia2/tools/fonts/RandomScalerContext.h
Ben Wagner f73a029506 Make onCreateScalerContext return unique_ptr.
Change SkTypeface::onCreateScalerContext to return std::unique_ptr
instead of a bare pointer. The public SkTypeface::createScalerContext
implementation already returns std::unique_ptr, so this is an internal
change only.

Move SkTypeface::createScalerContext implementation from
SkScalerContext.cpp to SkTypeface.cpp for consistency.

Also change the return type of SkScalerContext::MakeEmptyContext to
std::unique_ptr and rename to SkScalerContext::MakeEmpty.

Change-Id: I965308e8f9c78b887811e428f0de873dc6196479
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/346658
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
Auto-Submit: Ben Wagner <bungeman@google.com>
2020-12-28 17:31:09 +00:00

60 lines
2.3 KiB
C++

/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef RandomScalerContext_DEFINED
#define RandomScalerContext_DEFINED
#include "include/core/SkTypeface.h"
#include "src/core/SkScalerContext.h"
/*
* This scaler context is for debug only purposes. It will 'randomly' but deterministically return
* LCD / A8 / BW / RBGA masks based off of the Glyph ID
*/
class SkRandomTypeface : public SkTypeface {
public:
SkRandomTypeface(sk_sp<SkTypeface> proxy, const SkPaint&, bool fakeit);
SkTypeface* proxy() const { return fProxy.get(); }
const SkPaint& paint() const { return fPaint; }
protected:
std::unique_ptr<SkScalerContext> onCreateScalerContext(const SkScalerContextEffects&,
const SkDescriptor*) const override;
void onFilterRec(SkScalerContextRec*) const override;
void getGlyphToUnicodeMap(SkUnichar*) const override;
std::unique_ptr<SkAdvancedTypefaceMetrics> onGetAdvancedMetrics() const override;
std::unique_ptr<SkStreamAsset> onOpenStream(int* ttcIndex) const override;
sk_sp<SkTypeface> onMakeClone(const SkFontArguments& args) const override;
void onGetFontDescriptor(SkFontDescriptor*, bool* isLocal) const override;
void onCharsToGlyphs(const SkUnichar* chars, int count, SkGlyphID glyphs[]) const override;
int onCountGlyphs() const override;
int onGetUPEM() const override;
void onGetFamilyName(SkString* familyName) const override;
bool onGetPostScriptName(SkString*) const override;
SkTypeface::LocalizedStrings* onCreateFamilyNameIterator() const override;
void getPostScriptGlyphNames(SkString*) const override;
int onGetVariationDesignPosition(SkFontArguments::VariationPosition::Coordinate coordinates[],
int coordinateCount) const override;
int onGetVariationDesignParameters(SkFontParameters::Variation::Axis parameters[],
int parameterCount) const override;
int onGetTableTags(SkFontTableTag tags[]) const override;
size_t onGetTableData(SkFontTableTag, size_t offset, size_t length, void* data) const override;
private:
sk_sp<SkTypeface> fProxy;
SkPaint fPaint;
bool fFakeIt;
};
#endif