Struct ScrollManager 

pub struct ScrollManager { /* private fields */ }

Manages scroll regions for all scrollable widgets.

Implementations

impl ScrollManager

pub fn new() -> Self

Create a new scroll manager.

pub fn register( &mut self, widget_id: WidgetId, content_width: u16, content_height: u16, viewport_width: u16, viewport_height: u16, )

Register a scrollable region for a widget.

pub fn scroll_by(&mut self, widget_id: WidgetId, dx: i16, dy: i16)

Scroll by a relative offset, clamping to valid range.

pub fn scroll_to(&mut self, widget_id: WidgetId, x: u16, y: u16)

Scroll to an absolute position, clamping to valid range.

pub fn get(&self, widget_id: WidgetId) -> Option<&ScrollState>

Get the scroll state for a widget.

pub fn can_scroll_x(&self, widget_id: WidgetId) -> bool

Check if a widget can scroll horizontally.

pub fn can_scroll_y(&self, widget_id: WidgetId) -> bool

Check if a widget can scroll vertically.

pub fn visible_rect(&self, widget_id: WidgetId) -> Option<Rect>

Get the visible content rectangle for a scrollable widget.

pub fn remove(&mut self, widget_id: WidgetId)

Remove a scroll region.

Trait Implementations

impl Default for ScrollManager

fn default() -> Self

Returns the “default value” for a type.