Struct kas::layout::SizeRules

pub struct SizeRules { /* fields omitted */ }

Widget sizing information

Return value of kas::Layout::size_rules.

This struct conveys properties such as the minimum size and preferred size of the widgets being queried.

Methods

impl SizeRules

pub const EMPTY: Self

Empty (zero size)

pub fn fixed(size: u32) -> Self

A fixed size

pub fn new(min: u32, ideal: u32, stretch: StretchPolicy) -> Self

Construct with custom rules

Region size should meet the given min-imum size and has a given ideal size, plus a given stretch policy.

Required: ideal >= min (if not, ideal is clamped to min).

pub fn max(self, rhs: Self) -> SizeRules

Use the maximum size of self and rhs.

pub fn min_size(self) -> u32

Get the minimum size

pub fn ideal_size(self) -> u32

Get the ideal size

pub fn set_at_least_op_sub(&mut self, x: Self, y: Self)

Like self = self.max(x - y) but handling negative values correctly

pub fn reduce_min_to(&mut self, min: u32)

Reduce the minimum size

If min is greater than the current minimum size, this has no effect.

Trait Implementations

impl Add<SizeRules> for SizeRules

type Output = Self

The resulting type after applying the + operator.

fn add(self, rhs: SizeRules) -> Self::Output

Performs the + operation.

impl Add<u32> for SizeRules

type Output = Self

The resulting type after applying the + operator.

fn add(self, rhs: u32) -> Self::Output

Performs the + operation.

impl AddAssign<SizeRules> for SizeRules

fn add_assign(&mut self, rhs: Self)

Performs the += operation.

impl Clone for SizeRules

fn clone(&self) -> SizeRules

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for SizeRules

impl Debug for SizeRules

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

Formats the value using the given formatter.

impl Default for SizeRules

fn default() -> SizeRules

Returns the "default value" for a type.

impl Mul<u32> for SizeRules

type Output = Self

The resulting type after applying the * operator.

fn mul(self, rhs: u32) -> Self::Output

Performs the * operation.