Enum gtk4::ConstraintAttribute

#[non_exhaustive]
pub enum ConstraintAttribute {
    None,
    Left,
    Right,
    Top,
    Bottom,
    Start,
    End,
    Width,
    Height,
    CenterX,
    CenterY,
    Baseline,
    // some variants omitted
}

The widget attributes that can be used when creating a Constraint.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

None

No attribute, used for constant relations

Left

The left edge of a widget, regardless of text direction

Right

The right edge of a widget, regardless of text direction

Top

The top edge of a widget

Bottom

The bottom edge of a widget

Start

The leading edge of a widget, depending on text direction; equivalent to Left for LTR languages, and Right for RTL ones

End

The trailing edge of a widget, depending on text direction; equivalent to Right for LTR languages, and Left for RTL ones

Width

The width of a widget

Height

The height of a widget

CenterX

The center of a widget, on the horizontal axis

CenterY

The center of a widget, on the vertical axis

Baseline

The baseline of a widget

Trait Implementations

impl Clone for ConstraintAttribute

fn clone(&self) -> ConstraintAttribute

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ConstraintAttribute

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

Formats the value using the given formatter.

impl Display for ConstraintAttribute

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

Formats the value using the given formatter.

impl<'a> FromValue<'a> for ConstraintAttribute

type Checker = GenericValueTypeChecker<ConstraintAttribute>

Value type checker.

unsafe fn from_value(value: &'a Value) -> Self

Get the contained value from a Value.

impl Hash for ConstraintAttribute

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)where
    H: Hasher,
    Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for ConstraintAttribute

fn cmp(&self, other: &ConstraintAttribute) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Selfwhere
    Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Selfwhere
    Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere
    Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval.

impl PartialEq<ConstraintAttribute> for ConstraintAttribute

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

This method tests for self and other values to be equal, and is used by ==.

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

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

impl PartialOrd<ConstraintAttribute> for ConstraintAttribute

fn partial_cmp(&self, other: &ConstraintAttribute) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

This method tests less than (for self and other) and is used by the < operator.

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

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

This method tests greater than (for self and other) and is used by the > operator.

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

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl StaticType for ConstraintAttribute

fn static_type() -> Type

Returns the type identifier of Self.

impl ToValue for ConstraintAttribute

fn to_value(&self) -> Value

Convert a value to a Value.

fn value_type(&self) -> Type

Returns the type identifer of self.

impl ValueType for ConstraintAttribute

type Type = ConstraintAttribute

Type to get the Type from.

impl Copy for ConstraintAttribute

impl Eq for ConstraintAttribute

impl StructuralEq for ConstraintAttribute

impl StructuralPartialEq for ConstraintAttribute