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- /*
- * 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 "include/core/SkRect.h"
- #include "include/core/SkString.h"
- #include "include/private/SkBitmaskEnum.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::getAdvancedMetrics.
- */
- struct SkAdvancedTypefaceMetrics {
- // The PostScript name of the font. See `FontName` and `BaseFont` in PDF standard.
- SkString fPostScriptName;
- SkString fFontName;
- // These enum values match the values used in the PDF file format.
- enum StyleFlags : uint32_t {
- kFixedPitch_Style = 0x00000001,
- kSerif_Style = 0x00000002,
- kScript_Style = 0x00000008,
- kItalic_Style = 0x00000040,
- kAllCaps_Style = 0x00010000,
- kSmallCaps_Style = 0x00020000,
- kForceBold_Style = 0x00040000
- };
- StyleFlags fStyle = (StyleFlags)0; // Font style characteristics.
- enum FontType : uint8_t {
- 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 = kOther_Font;
- enum FontFlags : uint8_t {
- kMultiMaster_FontFlag = 0x01, //!<May be true for Type1, CFF, or TrueType fonts.
- kNotEmbeddable_FontFlag = 0x02, //!<May not be embedded.
- kNotSubsettable_FontFlag = 0x04, //!<May not be subset.
- };
- FontFlags fFlags = (FontFlags)0; // Global font flags.
- int16_t fItalicAngle = 0; // Counterclockwise degrees from vertical of the
- // dominant vertical stroke for an Italic face.
- // The following fields are all in font units.
- int16_t fAscent = 0; // Max height above baseline, not including accents.
- int16_t fDescent = 0; // Max depth below baseline (negative).
- int16_t fStemV = 0; // Thickness of dominant vertical stem.
- int16_t fCapHeight = 0; // Height (from baseline) of top of flat capitals.
- SkIRect fBBox = {0, 0, 0, 0}; // The bounding box of all glyphs (in font units).
- };
- namespace skstd {
- template <> struct is_bitmask_enum<SkAdvancedTypefaceMetrics::FontFlags> : std::true_type {};
- template <> struct is_bitmask_enum<SkAdvancedTypefaceMetrics::StyleFlags> : std::true_type {};
- }
- #endif
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