Struct SelectionState 

pub struct SelectionState {
    pub anchor: Option<usize>,
    pub cursor: usize,
}

Text selection state

Fields

anchor: Option<usize>

Selection anchor (where selection started)

cursor: usize

Current selection end (moves with cursor)

Implementations

impl SelectionState

pub fn range(&self) -> Option<(usize, usize)>

Get the normalized selection range (start, end)

pub fn has_selection(&self) -> bool

Check if there’s an active selection

pub fn clear(&mut self)

Clear the selection

pub fn start_selection(&mut self, pos: usize)

Start a new selection

pub fn update_selection(&mut self, pos: usize)

Update selection end

pub fn get_selected_text<'a>(&self, content: &'a str) -> Option<&'a str>

Get selected text from buffer

Trait Implementations

impl Component for SelectionState

where Self: Send + Sync + 'static,

const STORAGE_TYPE: StorageType = ::bevy::ecs::component::StorageType::Table

A constant indicating the storage type used for this component.

type Mutability = Mutable

A marker type to assist Bevy with determining if this component is mutable, or immutable. Mutable components will have Component<Mutability = Mutable>, while immutable components will instead have Component<Mutability = Immutable>.

fn register_required_components( _requiree: ComponentId, required_components: &mut RequiredComponentsRegistrator<'_, '_>, )

Registers required components.

fn clone_behavior() -> ComponentCloneBehavior

Called when registering this component, allowing to override clone function (or disable cloning altogether) for this component.

fn on_add() -> Option<for<'w> fn(DeferredWorld<'w>, HookContext)>

Gets the on_add ComponentHook for this Component if one is defined.

fn on_insert() -> Option<for<'w> fn(DeferredWorld<'w>, HookContext)>

Gets the on_insert ComponentHook for this Component if one is defined.

fn on_replace() -> Option<for<'w> fn(DeferredWorld<'w>, HookContext)>

Gets the on_replace ComponentHook for this Component if one is defined.

fn on_remove() -> Option<for<'w> fn(DeferredWorld<'w>, HookContext)>

Gets the on_remove ComponentHook for this Component if one is defined.

fn on_despawn() -> Option<for<'w> fn(DeferredWorld<'w>, HookContext)>

Gets the on_despawn ComponentHook for this Component if one is defined.

fn map_entities<E>(_this: &mut Self, _mapper: &mut E)

where E: EntityMapper,

Maps the entities on this component using the given EntityMapper. This is used to remap entities in contexts like scenes and entity cloning. When deriving Component, this is populated by annotating fields containing entities with #[entities]

impl Default for SelectionState

fn default() -> SelectionState

Returns the “default value” for a type.