Struct LayoutConstraints 

pub struct LayoutConstraints {

    pub width: Option<Length>,
    pub height: Option<Length>,
    pub min_width: Option<f32>,
    pub max_width: Option<f32>,
    pub min_height: Option<f32>,
    pub max_height: Option<f32>,
    pub padding: Option<Padding>,
    pub spacing: Option<f32>,
    pub align_items: Option<Alignment>,
    pub justify_content: Option<Justification>,
    pub align_self: Option<Alignment>,
    pub align_x: Option<Alignment>,
    pub align_y: Option<Alignment>,
    pub direction: Option<Direction>,
    pub position: Option<Position>,
    pub top: Option<f32>,
    pub right: Option<f32>,
    pub bottom: Option<f32>,
    pub left: Option<f32>,
    pub z_index: Option<i32>,
}

Layout constraints for widget sizing and positioning

Fields

width: Option<Length>

Primary sizing constraints

height: Option<Length>

min_width: Option<f32>

Size constraints in pixels

max_width: Option<f32>

min_height: Option<f32>

max_height: Option<f32>

padding: Option<Padding>

Inner spacing (padding)

spacing: Option<f32>

Gap between child widgets

align_items: Option<Alignment>

Alignment properties

justify_content: Option<Justification>

align_self: Option<Alignment>

align_x: Option<Alignment>

Direct alignment (for Container, Text, etc.)

align_y: Option<Alignment>

direction: Option<Direction>

Layout direction

position: Option<Position>

Positioning

top: Option<f32>

right: Option<f32>

bottom: Option<f32>

left: Option<f32>

z_index: Option<i32>

Implementations

impl LayoutConstraints

pub fn validate(&self) -> Result<(), String>

Validates constraint relationships

Returns an error if:

• min_width > max_width
• min_height > max_height
• spacing is negative
• padding values are negative
• fill_portion is not 1-255
• percentage is not 0.0-100.0

Trait Implementations

impl Clone for LayoutConstraints

fn clone(&self) -> LayoutConstraints

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LayoutConstraints

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

Formats the value using the given formatter.

impl Default for LayoutConstraints

fn default() -> LayoutConstraints

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for LayoutConstraints

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for LayoutConstraints

fn eq(&self, other: &LayoutConstraints) -> 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 Serialize for LayoutConstraints

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for LayoutConstraints