TextAffinity enum

Whether a TextPosition is visually upstream or downstream of its offset.

For example, when a text position exists at a line break, a single offset has two visual positions, one prior to the line break (at the end of the first line) and one after the line break (at the start of the second line). A text affinity disambiguates between those cases. (Something similar happens with between runs of bidirectional text.)

Constants

downstream → const TextAffinity

The position has affinity for the downstream side of the text position.

For example, if the offset of the text position is a line break, the position represents the start of the second line.

const TextAffinity(1)
upstream → const TextAffinity

The position has affinity for the upstream side of the text position.

For example, if the offset of the text position is a line break, the position represents the end of the first line.

const TextAffinity(0)
values → const List<TextAffinity>

A constant List of the values in this enum, in order of their declaration.

const List<TextAffinity>

Properties

index → int

The integer index of this enum.

final
hashCode → int
The hash code for this object. [...]
read-only, inherited
runtimeType → Type
A representation of the runtime type of the object.
read-only, inherited

Methods

toString() → String
Returns a string representation of this object.
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
inherited

Operators

operator ==(dynamic other) → bool
The equality operator. [...]
inherited