Struct Prepared 

struct Prepared {

    id: Id,
    state: State,
    auto_shrink: Vec2b,
    direction_enabled: Vec2b,
    show_bars_factor: Vec2,
    current_bar_use: Vec2,
    scroll_bar_visibility: ScrollBarVisibility,
    scroll_bar_rect: Option<Rect>,
    inner_rect: Rect,
    content_ui: Ui,
    viewport: Rect,
    scroll_source: ScrollSource,
    wheel_scroll_multiplier: Vec2,
    stick_to_end: Vec2b,
    saved_scroll_target: [Option<ScrollTarget>; 2],
    animated: bool,
}

Fields

id: Id

state: State

auto_shrink: Vec2b

direction_enabled: Vec2b

Does this ScrollArea have horizontal/vertical scrolling enabled?

show_bars_factor: Vec2

Smoothly interpolated boolean of whether or not to show the scroll bars.

current_bar_use: Vec2

How much horizontal and vertical space are used up by the width of the vertical bar, and the height of the horizontal bar?

This is always zero for floating scroll bars.

Note that this is a yx swizzling of Self::show_bars_factor times the maximum bar with. That’s because horizontal scroll uses up vertical space, and vice versa.

scroll_bar_visibility: ScrollBarVisibility

scroll_bar_rect: Option<Rect>

inner_rect: Rect

Where on the screen the content is (excludes scroll bars).

content_ui: Ui

viewport: Rect

Relative coordinates: the offset and size of the view of the inner UI. viewport.min == ZERO means we scrolled to the top.

scroll_source: ScrollSource

wheel_scroll_multiplier: Vec2

stick_to_end: Vec2b

saved_scroll_target: [Option<ScrollTarget>; 2]

If there was a scroll target before the ScrollArea was added this frame, it’s not for us to handle so we save it and restore it after this ScrollArea is done.

animated: bool

Implementations

impl Prepared

fn end(self, ui: &mut Ui) -> (Vec2, State)

Returns content size and state