Struct ScrollBarRenderState 

#[non_exhaustive]
pub struct ScrollBarRenderState {
    pub vertical: bool,
    pub logical_offset: Pixels,
    pub max_offset: Pixels,
    pub viewport_size: Pixels,
    pub content_size: Pixels,
    pub percentage: f64,
    pub thumb_ratio: f64,
    pub dragging: bool,
    pub focused: bool,
    pub opacity: f32,
}

Snapshot of scroll bar state passed to a custom renderer.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

vertical: bool

Whether the scroll bar is vertical.

logical_offset: Pixels

The current logical scroll offset, expressed as a positive distance from the start.

max_offset: Pixels

The maximum logical scroll offset.

viewport_size: Pixels

The size of the visible viewport along the scrolling axis.

content_size: Pixels

The total content size along the scrolling axis.

percentage: f64

Current thumb position expressed as a value between 0.0 and 1.0.

thumb_ratio: f64

Thumb size expressed as a fraction of the track length.

dragging: bool

Whether the scroll bar is currently being dragged.

focused: bool

Whether the scroll bar currently owns keyboard focus.

opacity: f32

Visual opacity of the scroll bar (0.0 = hidden, 1.0 = fully visible).

Implementations

impl ScrollBarRenderState

pub fn thumb_bounds(&self, bounds: Bounds<Pixels>) -> Bounds<Pixels>

Compute thumb bounds inside the provided scroll bar bounds.

Trait Implementations

impl Clone for ScrollBarRenderState

fn clone(&self) -> ScrollBarRenderState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ScrollBarRenderState

impl Debug for ScrollBarRenderState

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

Formats the value using the given formatter.