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/*
* Copyright 2014 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkTestSVGTypeface_DEFINED
#define SkTestSVGTypeface_DEFINED
#include "SkFontArguments.h"
#include "SkPaint.h"
#include "SkPoint.h"
#include "SkRect.h"
#include "SkRefCnt.h"
#include "SkScalar.h"
#include "SkString.h"
#include "SkTArray.h"
#include "SkTHash.h"
#include "SkTypeface.h"
#include "SkTypes.h"
#include <memory>
class SkDescriptor;
class SkFontDescriptor;
class SkFontStyle;
class SkGlyph;
class SkPath;
class SkScalerContext;
class SkStreamAsset;
class SkSVGDOM;
class SkWStream;
struct SkAdvancedTypefaceMetrics;
struct SkScalerContextEffects;
struct SkScalerContextRec;
struct SkSVGTestTypefaceGlyphData {
const char* fSvgResourcePath;
SkPoint fOrigin;
SkScalar fAdvance;
SkUnichar fUnicode; //TODO: this limits to 1:1
};
class SkTestSVGTypeface : public SkTypeface {
public:
SkTestSVGTypeface(const char* name,
int upem,
const SkPaint::FontMetrics& metrics,
const SkSVGTestTypefaceGlyphData* data, int dataCount,
const SkFontStyle& style);
~SkTestSVGTypeface() override;
void getAdvance(SkGlyph* glyph) const;
void getFontMetrics(SkPaint::FontMetrics* metrics) const;
void getPath(SkGlyphID glyph, SkPath* path) const;
static sk_sp<SkTestSVGTypeface> Default();
void exportTtxCbdt(SkWStream*) const;
void exportTtxSbix(SkWStream*) const;
void exportTtxColr(SkWStream*) const;
struct GlyfLayerInfo {
GlyfLayerInfo(int layerColorIndex, SkIRect bounds)
: fLayerColorIndex(layerColorIndex)
, fBounds(bounds) {}
int fLayerColorIndex;
SkIRect fBounds;
};
struct GlyfInfo {
GlyfInfo() : fBounds(SkIRect::MakeEmpty()) {}
SkIRect fBounds;
SkTArray<GlyfLayerInfo> fLayers;
};
protected:
void exportTtxCommon(SkWStream*, const char* type, const SkTArray<GlyfInfo>* = nullptr) const;
SkScalerContext* onCreateScalerContext(const SkScalerContextEffects&,
const SkDescriptor* desc) const override;
void onFilterRec(SkScalerContextRec* rec) const override;
std::unique_ptr<SkAdvancedTypefaceMetrics> onGetAdvancedMetrics() const override;
SkStreamAsset* onOpenStream(int* ttcIndex) const override {
return nullptr;
}
void onGetFontDescriptor(SkFontDescriptor* desc, bool* isLocal) const override;
int onCharsToGlyphs(const void* chars, Encoding encoding,
uint16_t glyphs[], int glyphCount) const override;
int onCountGlyphs() const override {
return fGlyphs.count();
}
int onGetUPEM() const override {
return fUpem;
}
void onGetFamilyName(SkString* familyName) const override;
SkTypeface::LocalizedStrings* onCreateFamilyNameIterator() const override;
int onGetVariationDesignPosition(SkFontArguments::VariationPosition::Coordinate coordinates[],
int coordinateCount) const override
{
return 0;
}
int onGetTableTags(SkFontTableTag tags[]) const override {
return 0;
}
size_t onGetTableData(SkFontTableTag tag, size_t offset,
size_t length, void* data) const override {
return 0;
}
private:
struct Glyph {
Glyph(sk_sp<SkSVGDOM> svg, const SkSVGTestTypefaceGlyphData& data);
~Glyph();
sk_sp<SkSVGDOM> fSvg;
SkPoint fOrigin;
SkScalar fAdvance;
};
SkString fName;
int fUpem;
const SkPaint::FontMetrics fFontMetrics;
SkTArray<Glyph> fGlyphs;
SkTHashMap<SkUnichar, SkGlyphID> fCMap;
friend class SkTestSVGScalerContext;
};
#endif
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