Struct Shadow 

pub struct Shadow {
    pub dx: f32,
    pub dy: f32,
    pub blur: f32,
    pub color: Color,
}

阴影(文字与图片共用):偏移 + 软化半径 + 颜色,尺寸皆逻辑像素。 不参与布局(不撑大占位),溢出块界照画。

Fields

dx: f32

水平偏移(右正)。

dy: f32

垂直偏移(下正)。

blur: f32

软化半径(0 = 实边)。

color: Color

颜色(含 alpha,通常用半透明)。

Trait Implementations

impl Clone for Shadow

fn clone(&self) -> Shadow

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Shadow

impl Debug for Shadow

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

Formats the value using the given formatter.

impl Default for Shadow

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for Shadow

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for Shadow