8675f9b5eb
We're going to be using this more often to the point that the extra SkDebugf() calls are going to be annoying. May also fix a crash? Change-Id: I796037568cce720ecb3d0b4f4272af5d700760ea Reviewed-on: https://skia-review.googlesource.com/70180 Reviewed-by: Ben Wagner <bungeman@google.com>
103 lines
2.9 KiB
C++
103 lines
2.9 KiB
C++
/*
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* Copyright 2014 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef SkTestScalerContext_DEFINED
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#define SkTestScalerContext_DEFINED
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#include "SkFixed.h"
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#include "SkPaint.h"
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#include "SkPath.h"
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#include "SkRefCnt.h"
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#include "SkTDArray.h"
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#include "SkTypeface.h"
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class SkTestFont;
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struct SkTestFontData {
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const SkScalar* fPoints;
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const unsigned char* fVerbs;
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const unsigned* fCharCodes;
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const size_t fCharCodesCount;
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const SkFixed* fWidths;
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const SkPaint::FontMetrics& fMetrics;
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const char* fName;
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SkFontStyle fStyle;
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sk_sp<SkTestFont> fCachedFont;
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};
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class SkTestFont : public SkRefCnt {
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public:
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SkTestFont(const SkTestFontData& );
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virtual ~SkTestFont();
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int codeToIndex(SkUnichar charCode) const;
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void init(const SkScalar* pts, const unsigned char* verbs);
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private:
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const unsigned* fCharCodes;
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const size_t fCharCodesCount;
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const SkFixed* fWidths;
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const SkPaint::FontMetrics& fMetrics;
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const char* fName;
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SkPath** fPaths;
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friend class SkTestTypeface;
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typedef SkRefCnt INHERITED;
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};
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class SkTestTypeface : public SkTypeface {
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public:
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SkTestTypeface(sk_sp<SkTestFont>, const SkFontStyle& style);
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void getAdvance(SkGlyph* glyph);
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void getFontMetrics(SkPaint::FontMetrics* metrics);
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void getMetrics(SkGlyph* glyph);
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void getPath(SkGlyphID glyph, SkPath* path);
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protected:
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SkScalerContext* onCreateScalerContext(const SkScalerContextEffects&,
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const SkDescriptor* desc) const override;
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void onFilterRec(SkScalerContextRec* rec) const override;
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std::unique_ptr<SkAdvancedTypefaceMetrics> onGetAdvancedMetrics() const override;
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SkStreamAsset* onOpenStream(int* ttcIndex) const override {
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return nullptr;
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}
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void onGetFontDescriptor(SkFontDescriptor* desc, bool* isLocal) const override;
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int onCharsToGlyphs(const void* chars, Encoding encoding,
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uint16_t glyphs[], int glyphCount) const override;
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int onCountGlyphs() const override {
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return (int) fTestFont->fCharCodesCount;
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}
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int onGetUPEM() const override {
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return 2048;
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}
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void onGetFamilyName(SkString* familyName) const override;
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SkTypeface::LocalizedStrings* onCreateFamilyNameIterator() const override;
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int onGetVariationDesignPosition(SkFontArguments::VariationPosition::Coordinate coordinates[],
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int coordinateCount) const override
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{
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return 0;
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}
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int onGetTableTags(SkFontTableTag tags[]) const override {
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return 0;
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}
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size_t onGetTableData(SkFontTableTag tag, size_t offset,
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size_t length, void* data) const override {
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return 0;
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}
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private:
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sk_sp<SkTestFont> fTestFont;
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friend class SkTestScalerContext;
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};
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#endif
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