Struct TreeItem 

pub struct TreeItem { /* private fields */ }

One row of a tree: a label at a depth, and optionally something before and after it.

TreeItem::new("Nettverk");
TreeItem::new("Wi-Fi").at_depth(1).with_trailing("på");
TreeItem::new("Ikke ferdig").at_depth(1).disabled();

Implementations

impl TreeItem

pub fn new(text: impl Into<String>) -> Self

A row at the top level, open, enabled.

Open by default because a tree that arrives entirely shut shows one row per top-level branch and nothing of what it is for.

pub fn at_depth(self, depth: u16) -> Self

How deep this row sits. 0 is the top level.

The hierarchy is this number: a row is a child of the nearest row above it with a smaller depth. See the note on Tree for why the rows are flat.

pub fn shut(self) -> Self

Starts this row shut, so what is under it is not drawn until it is opened.

pub fn with_leading(self, leading: impl Into<String>) -> Self

Puts a short run of text in a column before the label.

pub fn with_trailing(self, trailing: impl Into<String>) -> Self

Puts text at the trailing edge of the row: a value, a unit, a state.

pub fn disabled(self) -> Self

Makes the row unselectable: skipped by the keyboard, inert to the mouse.

A disabled row that has children still opens and shuts: what is under it may well be reachable even when it is not.

pub fn text(&self) -> &str

The row’s label.

pub fn leading(&self) -> &str

The text before the label.

pub fn trailing(&self) -> &str

The text at the trailing edge.

pub const fn depth(&self) -> u16

How deep this row sits.

pub const fn is_open(&self) -> bool

Whether what is under this row is drawn.

pub const fn is_enabled(&self) -> bool

Whether this row can be selected.

pub fn set_text(&mut self, text: impl Into<String>)

Replaces the label.

pub fn set_open(&mut self, open: bool)

Opens or shuts this row.

pub fn set_enabled(&mut self, enabled: bool)

Enables or disables this row.

Trait Implementations

impl Clone for TreeItem

fn clone(&self) -> TreeItem

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TreeItem

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

Formats the value using the given formatter.

impl Eq for TreeItem

impl From<&str> for TreeItem

fn from(text: &str) -> Self

Converts to this type from the input type.

impl From<String> for TreeItem

fn from(text: String) -> Self

Converts to this type from the input type.

impl PartialEq for TreeItem

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for TreeItem