/*
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* Copyright 2011 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 SkAdvancedTypefaceMetrics_DEFINED
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#define SkAdvancedTypefaceMetrics_DEFINED
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#include "SkBitmaskEnum.h"
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#include "SkRect.h"
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#include "SkString.h"
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/** \class SkAdvancedTypefaceMetrics
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The SkAdvancedTypefaceMetrics class is used by the PDF backend to correctly
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embed typefaces. This class is created and filled in with information by
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SkTypeface::getAdvancedMetrics.
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*/
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struct SkAdvancedTypefaceMetrics {
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// The PostScript name of the font. See `FontName` and `BaseFont` in PDF standard.
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SkString fPostScriptName;
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SkString fFontName;
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// These enum values match the values used in the PDF file format.
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enum StyleFlags : uint32_t {
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kFixedPitch_Style = 0x00000001,
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kSerif_Style = 0x00000002,
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kScript_Style = 0x00000008,
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kItalic_Style = 0x00000040,
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kAllCaps_Style = 0x00010000,
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kSmallCaps_Style = 0x00020000,
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kForceBold_Style = 0x00040000
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};
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StyleFlags fStyle = (StyleFlags)0; // Font style characteristics.
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enum FontType : uint8_t {
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kType1_Font,
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kType1CID_Font,
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kCFF_Font,
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kTrueType_Font,
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kOther_Font,
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};
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// The type of the underlying font program. This field determines which
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// of the following fields are valid. If it is kOther_Font the per glyph
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// information will never be populated.
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FontType fType = kOther_Font;
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enum FontFlags : uint8_t {
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kMultiMaster_FontFlag = 0x01, //!<May be true for Type1, CFF, or TrueType fonts.
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kNotEmbeddable_FontFlag = 0x02, //!<May not be embedded.
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kNotSubsettable_FontFlag = 0x04, //!<May not be subset.
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};
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FontFlags fFlags = (FontFlags)0; // Global font flags.
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int16_t fItalicAngle = 0; // Counterclockwise degrees from vertical of the
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// dominant vertical stroke for an Italic face.
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// The following fields are all in font units.
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int16_t fAscent = 0; // Max height above baseline, not including accents.
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int16_t fDescent = 0; // Max depth below baseline (negative).
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int16_t fStemV = 0; // Thickness of dominant vertical stem.
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int16_t fCapHeight = 0; // Height (from baseline) of top of flat capitals.
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SkIRect fBBox = {0, 0, 0, 0}; // The bounding box of all glyphs (in font units).
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};
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namespace skstd {
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template <> struct is_bitmask_enum<SkAdvancedTypefaceMetrics::FontFlags> : std::true_type {};
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template <> struct is_bitmask_enum<SkAdvancedTypefaceMetrics::StyleFlags> : std::true_type {};
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}
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#endif
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