Struct OptionU8 

pub struct OptionU8 {
    pub value: Option<u8>,
}

Wrapper for optional numeric values with style fallback.

This struct provides a convenient way to handle optional numeric parameters in widgets, such as corner radius and border width. When a value is not explicitly set, it falls back to corresponding value from the global style configuration.

Example

use matrix_gui::prelude::*;

// Create with no value set
let mut value = OptionU8::none();

// Set a specific value
value.set_value(5);

Fields

value: Option<u8>

The optional numeric value.

Implementations

impl OptionU8

pub const fn none() -> Self

Creates a new OptionU8 with no value set.

Returns

A new OptionU8 instance with value set to None.

pub const fn set_value(&mut self, value: u8)

Sets the numeric value.

Arguments

• value - The value to set.

pub fn corner_radius<COL: PixelColor>(&self, style: &Style<COL>) -> u32

Returns the corner radius, falling back to the style default if not set.

Type Parameters

• COL - The pixel color type implementing PixelColor

Arguments

• style - Reference to the style configuration.

Returns

The set value if present, otherwise style.corner_radius as u32.

pub fn border_width<COL: PixelColor>(&self, style: &Style<COL>) -> u32

Returns the border width, falling back to the style default if not set.

Type Parameters

• COL - The pixel color type implementing PixelColor

Arguments

• style - Reference to the style configuration.

Returns

The set value if present, otherwise style.border_width as u32.

Trait Implementations

impl Debug for OptionU8

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

Formats the value using the given formatter.

impl From<Option<u8>> for OptionU8

Converts an Option<u8> into an OptionU8.

fn from(value: Option<u8>) -> Self

Converts to this type from the input type.