1 /* 2 * Copyright 2014 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #ifndef SkTestSVGTypeface_DEFINED 9 #define SkTestSVGTypeface_DEFINED 10 11 #include "SkFontArguments.h" 12 #include "SkFontMetrics.h" 13 #include "SkMutex.h" 14 #include "SkPaint.h" 15 #include "SkPoint.h" 16 #include "SkRect.h" 17 #include "SkRefCnt.h" 18 #include "SkScalar.h" 19 #include "SkString.h" 20 #include "SkTArray.h" 21 #include "SkTHash.h" 22 #include "SkTypeface.h" 23 #include "SkTypes.h" 24 25 #include <memory> 26 27 class SkDescriptor; 28 class SkFontDescriptor; 29 class SkFontStyle; 30 class SkGlyph; 31 class SkPath; 32 class SkScalerContext; 33 class SkStreamAsset; 34 class SkSVGDOM; 35 class SkWStream; 36 struct SkAdvancedTypefaceMetrics; 37 struct SkScalerContextEffects; 38 struct SkScalerContextRec; 39 40 struct SkSVGTestTypefaceGlyphData { 41 const char* fSvgResourcePath; 42 SkPoint fOrigin; 43 SkScalar fAdvance; 44 SkUnichar fUnicode; //TODO: this limits to 1:1 45 }; 46 47 class SkTestSVGTypeface : public SkTypeface { 48 public: 49 SkTestSVGTypeface(const char* name, 50 int upem, 51 const SkFontMetrics& metrics, 52 const SkSVGTestTypefaceGlyphData* data, int dataCount, 53 const SkFontStyle& style); 54 ~SkTestSVGTypeface() override; 55 void getAdvance(SkGlyph* glyph) const; 56 void getFontMetrics(SkFontMetrics* metrics) const; 57 58 static sk_sp<SkTestSVGTypeface> Default(); 59 void exportTtxCbdt(SkWStream*) const; 60 void exportTtxSbix(SkWStream*) const; 61 void exportTtxColr(SkWStream*) const; 62 63 struct GlyfLayerInfo { GlyfLayerInfoGlyfLayerInfo64 GlyfLayerInfo(int layerColorIndex, SkIRect bounds) 65 : fLayerColorIndex(layerColorIndex) 66 , fBounds(bounds) {} 67 int fLayerColorIndex; 68 SkIRect fBounds; 69 }; 70 struct GlyfInfo { GlyfInfoGlyfInfo71 GlyfInfo() : fBounds(SkIRect::MakeEmpty()) {} 72 SkIRect fBounds; 73 SkTArray<GlyfLayerInfo> fLayers; 74 }; 75 protected: 76 void exportTtxCommon(SkWStream*, const char* type, const SkTArray<GlyfInfo>* = nullptr) const; 77 78 SkScalerContext* onCreateScalerContext(const SkScalerContextEffects&, 79 const SkDescriptor* desc) const override; 80 void onFilterRec(SkScalerContextRec* rec) const override; 81 void getGlyphToUnicodeMap(SkUnichar*) const override; 82 std::unique_ptr<SkAdvancedTypefaceMetrics> onGetAdvancedMetrics() const override; 83 onOpenStream(int * ttcIndex)84 SkStreamAsset* onOpenStream(int* ttcIndex) const override { 85 return nullptr; 86 } 87 onMakeClone(const SkFontArguments & args)88 sk_sp<SkTypeface> onMakeClone(const SkFontArguments& args) const override { 89 return sk_ref_sp(this); 90 } 91 92 void onGetFontDescriptor(SkFontDescriptor* desc, bool* isLocal) const override; 93 94 int onCharsToGlyphs(const void* chars, Encoding encoding, 95 uint16_t glyphs[], int glyphCount) const override; 96 onCountGlyphs()97 int onCountGlyphs() const override { 98 return fGlyphCount; 99 } 100 onGetUPEM()101 int onGetUPEM() const override { 102 return fUpem; 103 } 104 105 void onGetFamilyName(SkString* familyName) const override; 106 SkTypeface::LocalizedStrings* onCreateFamilyNameIterator() const override; 107 onGetVariationDesignPosition(SkFontArguments::VariationPosition::Coordinate coordinates[],int coordinateCount)108 int onGetVariationDesignPosition(SkFontArguments::VariationPosition::Coordinate coordinates[], 109 int coordinateCount) const override 110 { 111 return 0; 112 } 113 onGetVariationDesignParameters(SkFontParameters::Variation::Axis parameters[],int parameterCount)114 int onGetVariationDesignParameters(SkFontParameters::Variation::Axis parameters[], 115 int parameterCount) const override 116 { 117 return 0; 118 } 119 onGetTableTags(SkFontTableTag tags[])120 int onGetTableTags(SkFontTableTag tags[]) const override { 121 return 0; 122 } 123 onGetTableData(SkFontTableTag tag,size_t offset,size_t length,void * data)124 size_t onGetTableData(SkFontTableTag tag, size_t offset, 125 size_t length, void* data) const override { 126 return 0; 127 } 128 private: 129 struct Glyph { 130 Glyph(); 131 ~Glyph(); 132 sk_sp<SkSVGDOM> fSvg; 133 SkMutex fSvgMutex; 134 SkPoint fOrigin; 135 SkScalar fAdvance; 136 }; 137 SkString fName; 138 int fUpem; 139 const SkFontMetrics fFontMetrics; 140 std::unique_ptr<Glyph[]> fGlyphs; 141 int fGlyphCount; 142 SkTHashMap<SkUnichar, SkGlyphID> fCMap; 143 friend class SkTestSVGScalerContext; 144 }; 145 146 #endif 147