Struct Layers 

pub struct Layers<S> { /* private fields */ }

What is painted under a text, in its offsets: washes (a highlight, a find match, a comment) and a selection, each in the shape S its painter draws it in. A painter draws Layers::painted and overdraws reads the same order.

Implementations

impl<S> Layers<S>

pub fn new() -> Self

pub fn wash(self, range: Range<usize>, color: Hsla, shape: S) -> Self

A wash over range, painted over the washes before it.

pub fn select(self, range: Range<usize>, color: Hsla, shape: S) -> Self

The selection, replacing any before it.

pub fn painted(&self) -> impl Iterator<Item = (&Range<usize>, Hsla, &S)>

In the order they are painted: the selection, then the washes in the order given.

pub fn surface(&self, page: Hsla, piece: &Range<usize>) -> Hsla

What the text over piece was coloured for: the washes covering it over the opaque page.

pub fn plate(&self, page: Hsla, piece: &Range<usize>) -> Option<Hsla>

Everything Self::painted covering piece, over the opaque page, or None where nothing does.

pub fn clipped(&self, span: &Range<usize>) -> Self

where S: Clone,

These layers cut to span of the text, in its offsets.

Trait Implementations

impl<S: Clone> Clone for Layers<S>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<S: Debug> Debug for Layers<S>

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

Formats the value using the given formatter.

impl<S> Default for Layers<S>

fn default() -> Self

Returns the “default value” for a type.