Struct ScrollController

pub struct ScrollController {
    pub offset: [f64; 2],
    pub bounds: [f64; 4],
    pub area: [f64; 2],
    pub speed: f64,
    /* private fields */
}

Stores information for scrolling.

Fields

offset: [f64; 2]

The offset of visible area.

bounds: [f64; 4]

Visible bounds.

area: [f64; 2]

The size of the scrollable area.

speed: f64

The scroll speed.

Implementations

impl ScrollController

pub fn new( bounds: [f64; 4], area: [f64; 2], settings: &ScrollSettings, ) -> ScrollController

Creates a new ScrollController.

pub fn visible_area_rect(&self) -> [f64; 4]

Returns the visible rectangle that intersects with the area. This is used to find what part of the area the user is looking at.

pub fn rect_from_area_to_view(&self, rect: [f64; 4]) -> [f64; 4]

Transform a rectangle from area coordinates to view.

pub fn event<E: GenericEvent>(&mut self, e: &E)

Handles event.

Trait Implementations

impl Clone for ScrollController

fn clone(&self) -> ScrollController

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ScrollController

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

Formats the value using the given formatter.