Make SkAdvancedTypefaceMetrics private.

include/core/SkAdvancedTypefaceMetrics.h

-
-/*
- * Copyright 2011 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-
-#ifndef SkAdvancedTypefaceMetrics_DEFINED
-#define SkAdvancedTypefaceMetrics_DEFINED
-
-#include "SkRect.h"
-#include "SkRefCnt.h"
-#include "SkString.h"
-#include "SkTDArray.h"
-#include "SkTemplates.h"
-
-/** \class SkAdvancedTypefaceMetrics
-
-    The SkAdvancedTypefaceMetrics class is used by the PDF backend to correctly
-    embed typefaces. This class is created and filled in with information by
-    SkTypeface::getAdvancedTypefaceMetrics.
-*/
-
-class SkAdvancedTypefaceMetrics : public SkRefCnt {
-public:
-    SK_DECLARE_INST_COUNT(SkAdvancedTypefaceMetrics)
-
-    SkString fFontName;
-
-    enum FontType {
-        kType1_Font,
-        kType1CID_Font,
-        kCFF_Font,
-        kTrueType_Font,
-        kOther_Font,
-    };
-    // The type of the underlying font program.  This field determines which
-    // of the following fields are valid.  If it is kOther_Font the per glyph
-    // information will never be populated.
-    FontType fType;
-
-    enum FontFlags {
-        kEmpty_FontFlag          = 0x0,  //!<No flags set
-        kMultiMaster_FontFlag    = 0x1,  //!<May be true for Type1 or CFF fonts.
-        kNotEmbeddable_FontFlag  = 0x2,  //!<May not be embedded.
-        kNotSubsettable_FontFlag = 0x4,  //!<May not be subset.
-    };
-    // Global font flags.
-    FontFlags fFlags;
-
-    uint16_t fLastGlyphID; // The last valid glyph ID in the font.
-    uint16_t fEmSize;  // The size of the em box (defines font units).
-
-    // These enum values match the values used in the PDF file format.
-    enum StyleFlags {
-        kFixedPitch_Style  = 0x00001,
-        kSerif_Style       = 0x00002,
-        kScript_Style      = 0x00008,
-        kItalic_Style      = 0x00040,
-        kAllCaps_Style     = 0x10000,
-        kSmallCaps_Style   = 0x20000,
-        kForceBold_Style   = 0x40000
-    };
-    uint16_t fStyle;        // Font style characteristics.
-    int16_t fItalicAngle;   // Counterclockwise degrees from vertical of the
-                            // dominant vertical stroke for an Italic face.
-    // The following fields are all in font units.
-    int16_t fAscent;       // Max height above baseline, not including accents.
-    int16_t fDescent;      // Max depth below baseline (negative).
-    int16_t fStemV;        // Thickness of dominant vertical stem.
-    int16_t fCapHeight;    // Height (from baseline) of top of flat capitals.
-
-    SkIRect fBBox;  // The bounding box of all glyphs (in font units).
-
-    // The type of advance data wanted.
-    enum PerGlyphInfo {
-      kNo_PerGlyphInfo         = 0x0, // Don't populate any per glyph info.
-      kHAdvance_PerGlyphInfo   = 0x1, // Populate horizontal advance data.
-      kVAdvance_PerGlyphInfo   = 0x2, // Populate vertical advance data.
-      kGlyphNames_PerGlyphInfo = 0x4, // Populate glyph names (Type 1 only).
-      kToUnicode_PerGlyphInfo  = 0x8  // Populate ToUnicode table, ignored
-                                      // for Type 1 fonts
-    };
-
-    template <typename Data>
-    struct AdvanceMetric {
-        enum MetricType {
-            kDefault,  // Default advance: fAdvance.count = 1
-            kRange,    // Advances for a range: fAdvance.count = fEndID-fStartID
-            kRun       // fStartID-fEndID have same advance: fAdvance.count = 1
-        };
-        MetricType fType;
-        uint16_t fStartId;
-        uint16_t fEndId;
-        SkTDArray<Data> fAdvance;
-        SkAutoTDelete<AdvanceMetric<Data> > fNext;
-    };
-
-    struct VerticalMetric {
-        int16_t fVerticalAdvance;
-        int16_t fOriginXDisp;  // Horiz. displacement of the secondary origin.
-        int16_t fOriginYDisp;  // Vert. displacement of the secondary origin.
-    };
-    typedef AdvanceMetric<int16_t> WidthRange;
-    typedef AdvanceMetric<VerticalMetric> VerticalAdvanceRange;
-
-    // This is indexed by glyph id.
-    SkAutoTDelete<WidthRange> fGlyphWidths;
-    // Only used for Vertical CID fonts.
-    SkAutoTDelete<VerticalAdvanceRange> fVerticalMetrics;
-
-    // The names of each glyph, only populated for postscript fonts.
-    SkAutoTDelete<SkAutoTArray<SkString> > fGlyphNames;
-
-    // The mapping from glyph to Unicode, only populated if
-    // kToUnicode_PerGlyphInfo is passed to GetAdvancedTypefaceMetrics.
-    SkTDArray<SkUnichar> fGlyphToUnicode;
-
-private:
-    typedef SkRefCnt INHERITED;
-};
-
-namespace skia_advanced_typeface_metrics_utils {
-
-template <typename Data>
-void resetRange(SkAdvancedTypefaceMetrics::AdvanceMetric<Data>* range,
-                       int startId);
-
-template <typename Data>
-SkAdvancedTypefaceMetrics::AdvanceMetric<Data>* appendRange(
-        SkAutoTDelete<SkAdvancedTypefaceMetrics::AdvanceMetric<Data> >* nextSlot,
-        int startId);
-
-template <typename Data>
-void finishRange(
-        SkAdvancedTypefaceMetrics::AdvanceMetric<Data>* range,
-        int endId,
-        typename SkAdvancedTypefaceMetrics::AdvanceMetric<Data>::MetricType
-                type);
-
-/** Retrieve advance data for glyphs. Used by the PDF backend. It calls
-    underlying platform dependent API getAdvance to acquire the data.
-    @param num_glyphs    Total number of glyphs in the given font.
-    @param glyphIDs      For per-glyph info, specify subset of the font by
-                         giving glyph ids.  Each integer represents a glyph
-                         id.  Passing NULL means all glyphs in the font.
-    @param glyphIDsCount Number of elements in subsetGlyphIds. Ignored if
-                         glyphIDs is NULL.
-*/
-template <typename Data, typename FontHandle>
-SkAdvancedTypefaceMetrics::AdvanceMetric<Data>* getAdvanceData(
-        FontHandle fontHandle,
-        int num_glyphs,
-        const uint32_t* glyphIDs,
-        uint32_t glyphIDsCount,
-        bool (*getAdvance)(FontHandle fontHandle, int gId, Data* data));
-
-} // namespace skia_advanced_typeface_metrics_utils
-
-#endif