[−][src]Struct druid::UpdateCtx
A mutable context provided to data update methods of widgets.
Widgets should call invalidate whenever a data change causes a change
in the widget's appearance, to schedule a repaint.
Methods
impl<'a, 'b> UpdateCtx<'a, 'b>[src]
pub fn invalidate(&mut self)[src]
Invalidate.
See EventCtx::invalidate for
more discussion.
pub fn text(&mut self) -> &mut Text<'b>[src]
Get an object which can create text layouts.
pub fn window(&self) -> &WindowHandle[src]
Returns a reference to the current WindowHandle.
Note: For the most part we're trying to migrate WindowHandle
functionality to WinCtx, but the update flow is the exception, as
it's shared across multiple windows.
pub fn window_id(&self) -> WindowId[src]
Get the window id.
Auto Trait Implementations
impl<'a, 'b> !RefUnwindSafe for UpdateCtx<'a, 'b>
impl<'a, 'b> !Send for UpdateCtx<'a, 'b>
impl<'a, 'b> !Sync for UpdateCtx<'a, 'b>
impl<'a, 'b> Unpin for UpdateCtx<'a, 'b> where
'b: 'a,
'b: 'a,
impl<'a, 'b> !UnwindSafe for UpdateCtx<'a, 'b>
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized, [src]
T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized, [src]
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized, [src]
T: ?Sized,
fn borrow_mut(&mut self) -> &mut T[src]
impl<T> From<T> for T[src]
impl<T, U> Into<U> for T where
U: From<T>, [src]
U: From<T>,
impl<T> RoundFrom<T> for T
fn round_from(x: T) -> T
impl<T, U> RoundInto<U> for T where
U: RoundFrom<T>,
U: RoundFrom<T>,
fn round_into(self) -> U
impl<T, U> TryFrom<U> for T where
U: Into<T>, [src]
U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]
impl<T, U> TryInto<U> for T where
U: TryFrom<T>, [src]
U: TryFrom<T>,