Struct DropdownView 

pub struct DropdownView {
    pub anchor: [f32; 4],
    pub options: Vec<String>,
    pub selected: usize,
    pub first: usize,
    pub hovered: Option<usize>,
    pub screen: Option<AssetId>,
    pub font: Option<FontHandle>,
    pub scale: f32,
    pub color: [f32; 3],
}

What GraphicsSystem needs to draw an open dropdown list: the anchor control rect (reference space), the option labels top-to-bottom, the selected + hovered OPTION indices to highlight, the scroll position (first, the top shown option of a list longer than the layout window), and the row value label’s font / scale / color so the list text matches the row it drops from.

Fields

anchor: [f32; 4]

Anchor control rect in reference space.

options: Vec<String>

Option labels, top to bottom.

selected: usize

Index of the selected option.

first: usize

Index of the top shown option, for a scrolled list.

hovered: Option<usize>

Index of the hovered option, if any.

screen: Option<AssetId>

The screen the row belongs to, when it belongs to one.

font: Option<FontHandle>

Font of the row’s value label, so list text matches it.

scale: f32

Text scale of the row’s value label.

color: [f32; 3]

Linear RGB text colour of the row’s value label.

Trait Implementations

impl Clone for DropdownView

fn clone(&self) -> DropdownView

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DropdownView

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

Formats the value using the given formatter.