Struct zng::font::CaretIndex

pub struct CaretIndex {
    pub index: usize,
    pub line: usize,
}

Defines an insert offset in a shaped text.

Fields

index: usize

Char byte offset in the full text.

This index can be computed using the SegmentedText.

line: usize

Line index in the shaped text.

This value is only used to disambiguate between the end of a wrap and the start of the next, the text itself does not have any line break but visually the user interacts with two lines. Note that this counts wrap lines, and that this value is not required to define a valid CaretIndex.

This index can be computed using the ShapedText::snap_caret_line.

Implementations

impl CaretIndex

pub const ZERO: CaretIndex = _

First position.

Trait Implementations

impl Clone for CaretIndex

fn clone(&self) -> CaretIndex

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CaretIndex

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for CaretIndex

fn deserialize<__D>( __deserializer: __D, ) -> Result<CaretIndex, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Ord for CaretIndex

fn cmp(&self, other: &CaretIndex) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq for CaretIndex

fn eq(&self, other: &CaretIndex) -> 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 PartialOrd for CaretIndex

fn partial_cmp(&self, other: &CaretIndex) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for CaretIndex

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for CaretIndex

impl Eq for CaretIndex