Struct os2

pub struct os2 {

    pub version: uint16,
    pub xAvgCharWidth: int16,
    pub usWeightClass: uint16,
    pub usWidthClass: uint16,
    pub fsType: uint16,
    pub ySubscriptXSize: int16,
    pub ySubscriptYSize: int16,
    pub ySubscriptXOffset: int16,
    pub ySubscriptYOffset: int16,
    pub ySuperscriptXSize: int16,
    pub ySuperscriptYSize: int16,
    pub ySuperscriptXOffset: int16,
    pub ySuperscriptYOffset: int16,
    pub yStrikeoutSize: int16,
    pub yStrikeoutPosition: int16,
    pub sFamilyClass: int16,
    pub panose: Panose,
    pub ulUnicodeRange1: uint32,
    pub ulUnicodeRange2: uint32,
    pub ulUnicodeRange3: uint32,
    pub ulUnicodeRange4: uint32,
    pub achVendID: Tag,
    pub fsSelection: uint16,
    pub usFirstCharIndex: uint16,
    pub usLastCharIndex: uint16,
    pub sTypoAscender: int16,
    pub sTypoDescender: int16,
    pub sTypoLineGap: int16,
    pub usWinAscent: uint16,
    pub usWinDescent: uint16,
    pub ulCodePageRange1: Option<uint32>,
    pub ulCodePageRange2: Option<uint32>,
    pub sxHeight: Option<int16>,
    pub sCapHeight: Option<int16>,
    pub usDefaultChar: Option<uint16>,
    pub usBreakChar: Option<uint16>,
    pub usMaxContext: Option<uint16>,
    pub usLowerOpticalPointSize: Option<uint16>,
    pub usUpperOpticalPointSize: Option<uint16>,
}

Represents a font’s OS/2 (OS/2 and Windows Metrics) table

Fields

version: uint16

Table version (between 0 and 5)

xAvgCharWidth: int16

Average width (xMax-xMin) of all non-empty glyphs

usWeightClass: uint16

Visual weight class (0-1000)

usWidthClass: uint16

Visual width class (1=Ultra-Condensed <-> 9=Ultra-Expanded)

fsType: uint16

Font embedding permissions bit field

ySubscriptXSize: int16

Horizontal size of subscript glyphs

ySubscriptYSize: int16

Vertical size of subscript glyphs

ySubscriptXOffset: int16

Horizontal offset of subscript glyphs

ySubscriptYOffset: int16

Vertical offset of subscript glyphs

ySuperscriptXSize: int16

Horizontal size of superscript glyphs

ySuperscriptYSize: int16

Vertical size of superscript glyphs

ySuperscriptXOffset: int16

Horizontal offset of superscript glyphs

ySuperscriptYOffset: int16

Vertical offset of superscript glyphs

yStrikeoutSize: int16

Thickness of strikeout dash (usually same as em dash thickness)

yStrikeoutPosition: int16

Strikeout dash position above baseline

sFamilyClass: int16

IBM font class parameter. See https://docs.microsoft.com/en-us/typography/opentype/spec/ibmfc.

panose: Panose

PANOSE metrics. See https://monotype.github.io/panose/pan1.htm.

ulUnicodeRange1: uint32

Supported unicode range (bitfield)

ulUnicodeRange2: uint32

Supported unicode range (bitfield)

ulUnicodeRange3: uint32

Supported unicode range (bitfield)

ulUnicodeRange4: uint32

Supported unicode range (bitfield)

achVendID: Tag

Registered vendor ID. See https://docs.microsoft.com/en-gb/typography/vendors/.

fsSelection: uint16

Font selection bitfield

usFirstCharIndex: uint16

Minimum Unicode codepoint supported by font

usLastCharIndex: uint16

Maximum Unicode codepoint supported by font

sTypoAscender: int16

Typographic ascender

sTypoDescender: int16

Typographic descender

sTypoLineGap: int16

Typographic line gap

usWinAscent: uint16

Windows clipping region ascender

usWinDescent: uint16

Windows clipping region descender (Usually positive!)

ulCodePageRange1: Option<uint32>

Bitfield of supported codepages (Version >=1)

ulCodePageRange2: Option<uint32>

Bitfield of supported codepages (Version >=1)

sxHeight: Option<int16>

x-Height (Version >= 2)

sCapHeight: Option<int16>

Cap height (Version >= 2)

usDefaultChar: Option<uint16>

GID used for undefined glyph (Version >= 2)

usBreakChar: Option<uint16>

GID used for word break glyph (Version >= 2)

usMaxContext: Option<uint16>

Length of largest contextual lookup (Version >= 2)

usLowerOpticalPointSize: Option<uint16>

Lowest supported optical point size. Deprecated, use STAT instead (Version >= 5)

usUpperOpticalPointSize: Option<uint16>

Highest supported optical point size. Deprecated, use STAT instead (Version >= 5)

Implementations

impl os2

pub fn int_list_to_code_page_ranges(&mut self, bitlist: &[u8])

Populate ulCodePageRange fields using a

pub fn calc_code_page_ranges(&mut self, mapping: &BTreeMap<u32, u16>)

implementation based on ufo2ft: https://github.com/googlefonts/ufo2ft/blob/main/lib/ufo2ft/util.py#l307

Trait Implementations

impl Debug for os2

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Deserialize for os2

fn from_bytes(c: &mut ReaderContext) -> Result<Self, DeserializationError>

impl PartialEq for os2

fn eq(&self, other: &os2) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for os2

fn to_bytes(&self, data: &mut Vec<u8>) -> Result<(), SerializationError>

impl StructuralPartialEq for os2