Struct Renderer 

pub struct Renderer<K: Clone + Ord + Send + Sync + 'static> { /* private fields */ }

Renderer stores widget content, lays it out, and draws it to a terminal.

Implementations

impl<K: Clone + Ord + Send + Sync + 'static> Renderer<K>

pub fn try_new() -> Result<Self>

pub async fn try_new_with_graphemes<I, G>(init: I, draw: bool) -> Result<Self>

where I: IntoIterator<Item = (K, G)>, G: Into<CreatedGraphemes>,

pub fn update<I, G>(&self, items: I) -> &Self

where I: IntoIterator<Item = (K, G)>, G: Into<CreatedGraphemes>,

pub fn remove<I>(&self, items: I) -> &Self

where I: IntoIterator<Item = K>,

pub fn hit_test(&self, position: ScreenPosition) -> Option<WidgetPosition<K>>

Returns the content position under a terminal screen position.

This always uses the layout from the most recently completed render.

pub fn screen_position( &self, position: WidgetPosition<K>, ) -> Option<ScreenPosition>

Returns the screen position for a widget content position when it is visible.

pub async fn render(&self) -> Result<()>

Lays out all current widget outputs and renders their visible viewports.

Viewport offsets persist by item key. They remain stable while a cursor is visible, move only when it crosses a viewport edge, and are clamped when content or terminal dimensions shrink.