Struct ToolbarCommand 

pub struct ToolbarCommand {
    pub label: String,
    pub icon: Option<Icon>,
    pub swatch: Option<AlphaColor<Srgb>>,
    pub active: Option<bool>,
    pub accessible_name: Option<String>,
    pub enabled: bool,
    pub dot: bool,
    pub priority: i32,
    pub menu: Option<Vec<MenuItem>>,
    pub joined: bool,
    pub on_click: Box<dyn FnMut()>,
    /* private fields */
}

One command of a toolbar and what it carries.

Fields

label: String

The command’s visible label, or the accessible name and tooltip of an icon-only command.

icon: Option<Icon>

Shown instead of the label when present.

swatch: Option<AlphaColor<Srgb>>

A colour well shown instead of a label or icon (the colour the next mark takes); the label is its accessible name and tooltip.

active: Option<bool>

Some for a toggle; Some(true) paints the lift.

accessible_name: Option<String>

What assistive technology and the More menu call it, when that differs from the label (a toggle labelled “Aa” is “Match case”).

enabled: bool

A disabled command is dimmed, announced as disabled and inert.

dot: bool

A dot at the command’s corner: something new behind it.

priority: i32

Higher stays visible longer when the row is too narrow; equal priorities give way from the end.

menu: Option<Vec<MenuItem>>

Some opens a menu anchored to the command instead of running it.

joined: bool

Goes with the command before it: the two (zoom out, zoom in) give way to the More menu together, never one without the other.

on_click: Box<dyn FnMut()>