Struct CompositionProperty 

pub struct CompositionProperty { /* private fields */ }

The identity of a property of a server-side composition object: what animations, expressions and change notifications refer to.

Properties are registered once per process and are plain data (ids, names and function pointers), so the UI thread and the render thread share them.

Implementations

impl CompositionProperty

pub fn id(&self) -> i32

pub fn name(&self) -> &'static str

pub fn owner(&self) -> TypeId

The type that declares the property: the generated property block of the server class.

pub fn owner_name(&self) -> &'static str

The name of the server class that declares the property.

pub fn get_variant(&self) -> Option<fn(&dyn IServerObject) -> ExpressionVariant>

Reads the property of an object as an expression variant; None for a property whose type has no variant form.

pub fn set_variant(&self) -> Option<fn(&dyn IServerObject, ExpressionVariant)>

Stores an expression variant into the field of the property, without any notification; None for a property that cannot be animated.

This is the type-erased form of set_field an animation uses to write the value it evaluated.

pub fn register<TOwner: Any, TField>( name: &'static str, owner_name: &'static str, get_field: fn(&dyn IServerObject) -> TField, set_field: fn(&dyn IServerObject, TField), get_variant: Option<fn(&dyn IServerObject) -> ExpressionVariant>, set_variant: Option<fn(&dyn IServerObject, ExpressionVariant)>, ) -> CompositionPropertyOf<TField>

Registers a property of the server class whose generated property block is TOwner.

Trait Implementations

impl Debug for CompositionProperty

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

Formats the value using the given formatter.

impl Eq for CompositionProperty

impl Hash for CompositionProperty

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 PartialEq for CompositionProperty

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

Equality operator ==.

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

Inequality operator !=.