Struct Line 

pub struct Line<'a> {
    pub style: Style,
    /* private fields */
}

Connected line-segment widget backed by a borrowed point slice.

The lifetime parameter ties the widget to its point storage. The widget never stores raw pointers and never copies the point slice.

Fields

style: Style

Style used for the line stroke.

border_color supplies the stroke color, border_width supplies the stroke width in pixels, and alpha modulates the final stroke alpha.

Implementations

impl<'a> Line<'a>

pub fn new(bounds: Rect, points: &'a [Point]) -> Self

Create a line widget with borrowed point storage.

The default stroke is one pixel wide using Style::default’s border color so a newly created line is visible without additional styling.

pub fn points(&self) -> &'a [Point]

Return the currently borrowed point slice.

pub fn set_points(&mut self, points: &'a [Point])

Replace the borrowed point slice.

pub fn set_y_invert(&mut self, y_invert: bool)

Enable or disable bottom-origin y coordinate mapping.

pub fn y_invert(&self) -> bool

Return whether bottom-origin y coordinate mapping is enabled.

Trait Implementations

impl<'a> Debug for Line<'a>

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

Formats the value using the given formatter.

impl Widget for Line<'_>

fn bounds(&self) -> Rect

Return the area this widget occupies relative to its parent.

fn draw(&self, renderer: &mut dyn Renderer)

Render the widget using the provided Renderer.

fn handle_event(&mut self, _event: &Event) -> bool

Handle an event and return true if it was consumed.

fn set_bounds(&mut self, bounds: Rect)

Called by the LPAR-10 layout pass to notify this widget of its layout-computed bounds.

fn clear_region(&mut self) -> Option<Rect>

Return a region (in draw/landscape coordinates) that should be restored from the pristine background copy, or None.

fn widget_font_mut(&mut self) -> Option<&mut WidgetFont>

Expose this widget’s font slot for cascade-driven font resolution (FONT-05 §5.B).