Struct Compositor 

pub struct Compositor { /* private fields */ }

The compositor collects widget layers and resolves overlapping regions.

Implementations

impl Compositor

pub fn new(width: u16, height: u16) -> Self

Creates a new compositor with the given screen dimensions.

pub fn clear(&mut self)

Removes all layers from the compositor.

pub fn add_layer(&mut self, layer: Layer)

Adds a layer to the compositor stack.

pub fn add_widget( &mut self, widget_id: u64, region: Rect, z_index: i32, lines: Vec<Vec<Segment>>, )

Convenience method that creates and adds a layer.

Creates a new layer from the given parameters and adds it to the stack.

pub fn layer_count(&self) -> usize

Returns the number of layers in the compositor.

pub fn screen_size(&self) -> Size

Returns the screen size.

pub fn resize(&mut self, width: u16, height: u16)

Resizes the compositor screen dimensions.

Clears all layers since they may no longer be valid for the new size.

pub fn layers(&self) -> &[Layer]

Returns a slice of all layers in the compositor.

pub fn compose(&self, buf: &mut ScreenBuffer)

Compose all layers and write the result to the screen buffer.

Processes each row by calling compose_line to resolve overlapping layers, then writes the resulting segments as cells to the buffer.