Struct zng::render::FrameValueKey

pub struct FrameValueKey<T> { /* private fields */ }

Unique key of an updatable value in the view-process frame.

Implementations

impl<T> FrameValueKey<T>

pub fn new_unique() -> FrameValueKey<T>

Generates a new unique ID.

pub fn to_wr(self) -> FrameValueId

To view key.

pub fn to_wr_child(self, child_index: u32) -> FrameValueId

To view key with an extra index modifier.

pub fn bind(self, value: T, animating: bool) -> FrameValue<T>

Create a binding with this key.

The animating flag controls if the binding will propagate to webrender, if true webrender frame updates are generated for

pub fn bind_child( self, child_index: u32, value: T, animating: bool, ) -> FrameValue<T>

Like bind but the key is modified to include the child_index.

pub fn update(self, value: T, animating: bool) -> FrameValueUpdate<T>

Create a value update with this key.

pub fn update_child( self, child_index: u32, value: T, animating: bool, ) -> FrameValueUpdate<T>

Like update but the key is modified to include the child_index.

pub fn bind_var<VT>( self, var: &impl Var<VT>, map: impl FnOnce(&VT) -> T, ) -> FrameValue<T>

where VT: VarValue,

Create a binding with this key and var.

The map must produce a copy or clone of the frame value.

pub fn bind_var_child<VT>( self, child_index: u32, var: &impl Var<VT>, map: impl FnOnce(&VT) -> T, ) -> FrameValue<T>

where VT: VarValue,

Like bind_var but the key is modified to include the child_index.

pub fn bind_var_mapped<VT>(&self, var: &impl Var<VT>, value: T) -> FrameValue<T>

where VT: VarValue,

Create a binding with this key, var and already mapped value.

pub fn bind_var_mapped_child<VT>( &self, child_index: u32, var: &impl Var<VT>, value: T, ) -> FrameValue<T>

where VT: VarValue,

Like bind_var_mapped but the key is modified to include the child_index.

pub fn update_var<VT>( self, var: &impl Var<VT>, map: impl FnOnce(&VT) -> T, ) -> Option<FrameValueUpdate<T>>

where VT: VarValue,

Create a value update with this key and var.

pub fn update_var_child<VT>( self, child_index: u32, var: &impl Var<VT>, map: impl FnOnce(&VT) -> T, ) -> Option<FrameValueUpdate<T>>

where VT: VarValue,

Like update_var but the key is modified to include the child_index.

pub fn update_var_mapped<VT>( self, var: &impl Var<VT>, value: T, ) -> Option<FrameValueUpdate<T>>

where VT: VarValue,

Create a value update with this key, var and already mapped value.

pub fn update_var_mapped_child<VT>( self, child_index: u32, var: &impl Var<VT>, value: T, ) -> Option<FrameValueUpdate<T>>

where VT: VarValue,

Like update_var_mapped but the key is modified to include the child_index.

Trait Implementations

impl<T> Clone for FrameValueKey<T>

fn clone(&self) -> FrameValueKey<T>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T> Debug for FrameValueKey<T>

where T: Debug,

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

Formats the value using the given formatter.

impl From<FrameValueKey<PxTransform>> for ReferenceFrameId

fn from(value: FrameValueKey<PxTransform>) -> ReferenceFrameId

Converts to this type from the input type.

impl<T> PartialEq for FrameValueKey<T>

fn eq(&self, other: &FrameValueKey<T>) -> 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<T> Copy for FrameValueKey<T>

impl<T> Eq for FrameValueKey<T>