Enum bevy::ui::ZIndex

pub enum ZIndex {
    Local(i32),
    Global(i32),
}

Indicates that this Node entity’s front-to-back ordering is not controlled solely by its location in the UI hierarchy. A node with a higher z-index will appear on top of other nodes with a lower z-index.

UI nodes that have the same z-index will appear according to the order in which they appear in the UI hierarchy. In such a case, the last node to be added to its parent will appear in front of its siblings.

Internally, nodes with a global z-index share the stacking context of root UI nodes (nodes that have no parent). Because of this, there is no difference between using ZIndex::Local(n) and ZIndex::Global(n) for root nodes.

Nodes without this component will be treated as if they had a value of ZIndex::Local(0).

Variants

Local(i32)

Indicates the order in which this node should be rendered relative to its siblings.

Global(i32)

Indicates the order in which this node should be rendered relative to root nodes and all other nodes that have a global z-index.

Trait Implementations

impl Clone for ZIndex

fn clone(&self) -> ZIndex

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Component for ZIndexwhere ZIndex: Send + Sync + 'static,

type Storage = TableStorage

A marker type indicating the storage type used for this component. This must be either TableStorage or SparseStorage.

impl Debug for ZIndex

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

Formats the value using the given formatter.

impl Default for ZIndex

fn default() -> ZIndex

Returns the “default value” for a type.

impl Enum for ZIndexwhere i32: FromReflect + TypePath,

fn field(&self, __name_param: &str) -> Option<&(dyn Reflect + 'static)>

Returns a reference to the value of the field (in the current variant) with the given name.

fn field_at(&self, __index_param: usize) -> Option<&(dyn Reflect + 'static)>

Returns a reference to the value of the field (in the current variant) at the given index.

fn field_mut( &mut self, __name_param: &str ) -> Option<&mut (dyn Reflect + 'static)>

Returns a mutable reference to the value of the field (in the current variant) with the given name.

fn field_at_mut( &mut self, __index_param: usize ) -> Option<&mut (dyn Reflect + 'static)>

Returns a mutable reference to the value of the field (in the current variant) at the given index.

fn index_of(&self, __name_param: &str) -> Option<usize>

Returns the index of the field (in the current variant) with the given name.

fn name_at(&self, __index_param: usize) -> Option<&str>

Returns the name of the field (in the current variant) with the given index.

fn iter_fields(&self) -> VariantFieldIter<'_>

Returns an iterator over the values of the current variant’s fields.

fn field_len(&self) -> usize

Returns the number of fields in the current variant.

fn variant_name(&self) -> &str

The name of the current variant.

fn variant_index(&self) -> usize

The index of the current variant.

fn variant_type(&self) -> VariantType

The type of the current variant.

fn clone_dynamic(&self) -> DynamicEnum

fn is_variant(&self, variant_type: VariantType) -> bool

Returns true if the current variant’s type matches the given one.

fn variant_path(&self) -> String

Returns the full path to the current variant.

impl FromReflect for ZIndexwhere i32: FromReflect + TypePath,

fn from_reflect(__param0: &(dyn Reflect + 'static)) -> Option<ZIndex>

Constructs a concrete instance of Self from a reflected value.

fn take_from_reflect( reflect: Box<dyn Reflect, Global> ) -> Result<Self, Box<dyn Reflect, Global>>

Attempts to downcast the given value to Self using, constructing the value using from_reflect if that fails.

impl GetTypeRegistration for ZIndexwhere i32: FromReflect + TypePath,

fn get_type_registration() -> TypeRegistration

impl Reflect for ZIndexwhere i32: FromReflect + TypePath,

fn get_represented_type_info(&self) -> Option<&'static TypeInfo>

Returns the TypeInfo of the type represented by this value.

fn into_any(self: Box<ZIndex, Global>) -> Box<dyn Any, Global>

Returns the value as a Box<dyn Any>.

fn as_any(&self) -> &(dyn Any + 'static)

Returns the value as a &dyn Any.

fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Returns the value as a &mut dyn Any.

fn into_reflect(self: Box<ZIndex, Global>) -> Box<dyn Reflect, Global>

Casts this type to a boxed reflected value.

fn as_reflect(&self) -> &(dyn Reflect + 'static)

Casts this type to a reflected value.

fn as_reflect_mut(&mut self) -> &mut (dyn Reflect + 'static)

Casts this type to a mutable reflected value.

fn clone_value(&self) -> Box<dyn Reflect, Global>

Clones the value as a Reflect trait object.

fn set( &mut self, __value_param: Box<dyn Reflect, Global> ) -> Result<(), Box<dyn Reflect, Global>>

Performs a type-checked assignment of a reflected value to this value.

fn apply(&mut self, __value_param: &(dyn Reflect + 'static))

Applies a reflected value to this value.

fn reflect_ref(&self) -> ReflectRef<'_>

Returns an enumeration of “kinds” of type.

fn reflect_mut(&mut self) -> ReflectMut<'_>

Returns a mutable enumeration of “kinds” of type.

fn reflect_owned(self: Box<ZIndex, Global>) -> ReflectOwned

Returns an owned enumeration of “kinds” of type.

fn reflect_hash(&self) -> Option<u64>

Returns a hash of the value (which includes the type).

fn reflect_partial_eq(&self, value: &(dyn Reflect + 'static)) -> Option<bool>

Returns a “partial equality” comparison result.

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

Debug formatter for the value.

fn serializable(&self) -> Option<Serializable<'_>>

Returns a serializable version of the value.

fn is_dynamic(&self) -> bool

Indicates whether or not this type is a dynamic type.

impl TypePath for ZIndexwhere i32: FromReflect + TypePath,

fn type_path() -> &'static str

Returns the fully qualified path of the underlying type.

fn short_type_path() -> &'static str

Returns a short, pretty-print enabled path to the type.

fn type_ident() -> Option<&'static str>

Returns the name of the type, or None if it is anonymous.

fn crate_name() -> Option<&'static str>

Returns the name of the crate the type is in, or None if it is anonymous.

fn module_path() -> Option<&'static str>

Returns the path to the module the type is in, or None if it is anonymous.

impl Typed for ZIndexwhere i32: FromReflect + TypePath,

fn type_info() -> &'static TypeInfo

Returns the compile-time info for the underlying type.

impl Copy for ZIndex