Struct AppearanceRule 

#[non_exhaustive]
pub struct AppearanceRule {
    pub id: String,
    pub target: AppearanceTarget,
    pub names: Vec<String>,
    pub context: AppearanceContext,
    pub criteria: Option<String>,
    pub priority: i32,
    pub font: Option<Tint>,
    pub back: Option<Tint>,
    pub bold: Option<bool>,
    pub enabled: Option<bool>,
    pub visible: Option<bool>,
    /* private fields */
}

Changes how things look or behave, for records that meet a condition. It is about looks: it does not protect data, which is what permissions are for.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

id: String

What it is known by.

target: AppearanceTarget

The kind of thing it changes.

names: Vec<String>

The names of those things, where * stands for any text. A list that starts with a lone * means all but the names after it.

context: AppearanceContext

Where it applies.

criteria: Option<String>

The expression a record has to meet. With none, and no function, it always applies.

priority: i32

Whichever is higher wins, for what both change.

font: Option<Tint>

The color of the text.

back: Option<Tint>

The color behind it.

bold: Option<bool>

Heavier text.

enabled: Option<bool>

Whether it can be used.

visible: Option<bool>

Whether it shows.

Implementations

impl AppearanceRule

pub fn new( id: impl Into<String>, names: impl IntoIterator<Item = impl Into<String>>, ) -> Self

A rule about fields with these names, as * or open*.

pub fn target(self, target: AppearanceTarget) -> Self

About this kind of thing.

pub fn context(self, context: AppearanceContext) -> Self

Only in these views.

pub fn criteria(self, expression: impl Into<String>) -> Self

For records that meet this expression.

pub fn when(self, condition: impl Fn(&Object) -> bool + 'static) -> Self

For records this says yes to.

pub fn priority(self, priority: i32) -> Self

Whichever is higher wins.

pub fn font(self, tint: Tint) -> Self

The color of the text.

pub fn back(self, tint: Tint) -> Self

The color behind it.

pub fn bold(self) -> Self

Heavier text.

pub fn enabled(self, enabled: bool) -> Self

Whether it can be used.

pub fn visible(self, visible: bool) -> Self

Whether it shows.

Trait Implementations

impl Clone for AppearanceRule

fn clone(&self) -> AppearanceRule

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AppearanceRule

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

Formats the value using the given formatter.

impl PartialEq for AppearanceRule

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.