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      1 
      2 /*
      3  * Copyright 2011 Google Inc.
      4  *
      5  * Use of this source code is governed by a BSD-style license that can be
      6  * found in the LICENSE file.
      7  */
      8 
      9 
     10 #ifndef SkPDFFontImpl_DEFINED
     11 #define SkPDFFontImpl_DEFINED
     12 
     13 #include "SkPDFFont.h"
     14 
     15 class SkPDFType0Font final : public SkPDFFont {
     16 public:
     17     virtual ~SkPDFType0Font();
     18     bool multiByteGlyphs() const override { return true; }
     19     SkPDFFont* getFontSubset(const SkPDFGlyphSet* usage) override;
     20 #ifdef SK_DEBUG
     21     void emitObject(SkWStream*,
     22                     const SkPDFObjNumMap&,
     23                     const SkPDFSubstituteMap&) const override;
     24 #endif
     25 
     26 private:
     27     friend class SkPDFFont;  // to access the constructor
     28 #ifdef SK_DEBUG
     29     bool fPopulated;
     30     typedef SkPDFDict INHERITED;
     31 #endif
     32 
     33     SkPDFType0Font(const SkAdvancedTypefaceMetrics* info,
     34                    SkTypeface* typeface);
     35 
     36     bool populate(const SkPDFGlyphSet* subset);
     37 };
     38 
     39 class SkPDFCIDFont final : public SkPDFFont {
     40 public:
     41     virtual ~SkPDFCIDFont();
     42     virtual bool multiByteGlyphs() const { return true; }
     43 
     44 private:
     45     friend class SkPDFType0Font;  // to access the constructor
     46 
     47     SkPDFCIDFont(const SkAdvancedTypefaceMetrics* info,
     48                  SkTypeface* typeface,
     49                  const SkPDFGlyphSet* subset);
     50 
     51     bool populate(const SkPDFGlyphSet* subset);
     52     bool addFontDescriptor(int16_t defaultWidth,
     53                            const SkTDArray<uint32_t>* subset);
     54 };
     55 
     56 class SkPDFType1Font final : public SkPDFFont {
     57 public:
     58     virtual ~SkPDFType1Font();
     59     virtual bool multiByteGlyphs() const { return false; }
     60 
     61 private:
     62     friend class SkPDFFont;  // to access the constructor
     63 
     64     SkPDFType1Font(const SkAdvancedTypefaceMetrics* info,
     65                    SkTypeface* typeface,
     66                    uint16_t glyphID,
     67                    SkPDFDict* relatedFontDescriptor);
     68 
     69     bool populate(int16_t glyphID);
     70     bool addFontDescriptor(int16_t defaultWidth);
     71     void addWidthInfoFromRange(int16_t defaultWidth,
     72         const SkAdvancedTypefaceMetrics::WidthRange* widthRangeEntry);
     73 };
     74 
     75 class SkPDFType3Font final : public SkPDFFont {
     76 public:
     77     virtual ~SkPDFType3Font();
     78     virtual bool multiByteGlyphs() const { return false; }
     79 
     80 private:
     81     friend class SkPDFFont;  // to access the constructor
     82 
     83     SkPDFType3Font(const SkAdvancedTypefaceMetrics* info,
     84                    SkTypeface* typeface,
     85                    uint16_t glyphID);
     86 
     87     bool populate(uint16_t glyphID);
     88 };
     89 
     90 #endif
     91