Enumerations

Namespace: PinataLabs.Typography, unless stated otherwise. The first value in each table is the default of the matching TextOptions property, unless stated otherwise.

Layout

LayoutMode

Value	Description
HorizontalTopBottom	Horizontal lines, from top to bottom.
HorizontalBottomTop	Horizontal lines, from bottom to top.
VerticalLeftRight	Vertical columns, from left to right. All glyphs upright.
VerticalRightLeft	Vertical columns, from right to left. All glyphs upright.
VerticalMixedLeftRight	Vertical columns, from left to right. Horizontal glyphs turned 90° clockwise.
VerticalMixedRightLeft	Vertical columns, from right to left. Horizontal glyphs turned 90° clockwise.

LayoutModeExtensions adds IsHorizontal(), IsVertical() and IsVerticalMixed().

TextDirection

Default: Auto.

Value	Description
Auto	Find the base direction from the first strong character, as HTML dir="auto" does.
LeftToRight	Use a left-to-right base direction, as CSS direction: ltr does.
RightToLeft	Use a right-to-left base direction, as CSS direction: rtl does.

All three apply the Unicode Bidirectional Algorithm, so each run of text keeps its own direction.

TextAlignment

Value	Description
Start	At the start of the line: left for left-to-right text, right for right-to-left text.
End	At the end of the line.
Center	In the centre of the line.

TextJustification

Value	Description
None	Do not justify.
InterWord	Add space between words.
InterCharacter	Add space between characters.

HorizontalAlignment

Value	Description
Left	The left edge of the text box is at the origin.
Right	The right edge of the text box is at the origin.
Center	The centre of the text box is at the origin.

VerticalAlignment

Value	Description
Top	The top edge of the text box is at the origin.
Center	The centre of the text box is at the origin.
Bottom	The bottom edge of the text box is at the origin.

WordBreaking

Value	Description
Standard	Break only where the line-breaking rules allow.
BreakAll	Break between any two characters, except in Chinese, Japanese and Korean text.
KeepAll	Do not break inside Chinese, Japanese and Korean words.
BreakWord	Use Standard, then break words that still do not fit.

Glyphs and fonts

KerningMode

Value	Description
Standard	Apply kerning.
None	Do not apply kerning.
Auto	Apply kerning when the layout engine chooses. At present the same as Standard.

HintingMode

Value	Description
None	Do not hint.
Standard	Apply TrueType hinting.

ColorFontSupport

Default: MicrosoftColrFormat.

Value	Description
None	Do not use color glyphs.
MicrosoftColrFormat	Use COLR and CPAL color glyphs.

TextAttributes

Default for a TextRun: None.

Value	Description
None	Normal text.
Subscript	Smaller, below the baseline.
Superscript	Smaller, above the baseline.

TextDecorations

A flags enumeration. Default for a TextRun: None.

Value	Description
None	No lines.
Underline	A line under the text.
Strikeout	A line through the text.
Overline	A line over the text.

GlyphType

Value	Description
Fallback	No font had a glyph for the code point. This is the missing-glyph box.
Standard	An ordinary glyph.
ColrLayer	One layer of a color glyph.

GlyphLayoutMode

Value	Description
Horizontal	The glyph is in horizontal text.
Vertical	The glyph is upright in vertical text.
VerticalRotated	The glyph is turned 90° clockwise in vertical text.

OpenType tags

Namespace: PinataLabs.Typography.Tables.AdvancedTypographic.

Tag

public readonly struct Tag : IEquatable<Tag>

A four-letter OpenType tag.

Member	Description
Tag(uint value)	A tag from its 32-bit value.
static Parse(string value)	A tag from its four letters, for example Tag.Parse("ss01").
Value	The 32-bit value.
ToString()	The four letters.
implicit conversion from FeatureTags	Use a FeatureTags value where a Tag is needed.
implicit conversion from uint	Use a 32-bit value where a Tag is needed.

FeatureTags

public enum FeatureTags : uint

The registered OpenType layout features, by name, for example SmallCapitals (smcp), OldstyleFigures (onum), TabularFigures (tnum), Fractions (frac), DiscretionaryLigatures (dlig) and Kerning (kern). Each value is the 32-bit value of its tag. See OpenType features for the common ones, and the OpenType feature registry for what each feature does.

GlyphClassDef

The glyph classes of the GDEF table: BaseGlyph, LigatureGlyph, MarkGlyph and ComponentGlyph.