pub struct Window(/* private fields */);
Expand description

This type represents a window towards the windowing system, that’s used to render the scene of a component. It provides API to control windowing system specific aspects such as the position on the screen.

Implementations§

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impl Window

pub fn new(window_adapter_weak: Weak<dyn WindowAdapter>) -> Window

Create a new window from a window adapter

You only need to create the window yourself when you create a [WindowAdapter] from Platform::create_window_adapter

Since the window adapter must own the Window, this function is meant to be used with Rc::new_cyclic

Example
use std::rc::Rc;
use slint::platform::{WindowAdapter, Renderer};
use slint::{Window, PhysicalSize};
struct MyWindowAdapter {
    window: Window,
    //...
}
impl WindowAdapter for MyWindowAdapter {
   fn window(&self) -> &Window { &self.window }
   fn size(&self) -> PhysicalSize { unimplemented!() }
   fn renderer(&self) -> &dyn Renderer { unimplemented!() }
}

fn create_window_adapter() -> Rc<dyn WindowAdapter> {
   Rc::<MyWindowAdapter>::new_cyclic(|weak| {
       MyWindowAdapter {
          window: Window::new(weak.clone()),
          //...
       }
   })
}

pub fn show(&self) -> Result<(), PlatformError>

Shows the window on the screen. An additional strong reference on the associated component is maintained while the window is visible.

Call Self::hide() to make the window invisible again, and drop the additional strong reference.

pub fn hide(&self) -> Result<(), PlatformError>

Hides the window, so that it is not visible anymore. The additional strong reference on the associated component, that was created when Self::show() was called, is dropped.

pub fn set_rendering_notifier( &self, callback: impl FnMut(RenderingState, &GraphicsAPI<'_>) + 'static ) -> Result<(), SetRenderingNotifierError>

This function allows registering a callback that’s invoked during the different phases of rendering. This allows custom rendering on top or below of the scene.

pub fn on_close_requested( &self, callback: impl FnMut() -> CloseRequestResponse + 'static )

This function allows registering a callback that’s invoked when the user tries to close a window. The callback has to return a CloseRequestResponse.

pub fn request_redraw(&self)

This function issues a request to the windowing system to redraw the contents of the window.

pub fn scale_factor(&self) -> f32

This function returns the scale factor that allows converting between logical and physical pixels.

pub fn position(&self) -> PhysicalPosition

Returns the position of the window on the screen, in physical screen coordinates and including a window frame (if present).

pub fn set_position(&self, position: impl Into<WindowPosition>)

Sets the position of the window on the screen, in physical screen coordinates and including a window frame (if present). Note that on some windowing systems, such as Wayland, this functionality is not available.

pub fn size(&self) -> PhysicalSize

Returns the size of the window on the screen, in physical screen coordinates and excluding a window frame (if present).

pub fn set_size(&self, size: impl Into<WindowSize>)

Resizes the window to the specified size on the screen, in physical pixels and excluding a window frame (if present).

pub fn dispatch_event(&self, event: WindowEvent)

Dispatch a window event to the scene.

Use this when you’re implementing your own backend and want to forward user input events.

Any position fields in the event must be in the logical pixel coordinate system relative to the top left corner of the window.

pub fn has_active_animations(&self) -> bool

Returns true if there is an animation currently active on any property in the Window; false otherwise.

pub fn is_visible(&self) -> bool

Returns the visibility state of the window. This function can return false even if you previously called show() on it, for example if the user minimized the window.

Trait Implementations§

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impl WinitWindowAccessor for Window

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fn has_winit_window(&self) -> bool

Returns true if a [winit::window::Window] exists for this window. This is the case if the window is backed by this winit backend.
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fn with_winit_window<T>(&self, callback: impl FnOnce(&Window) -> T) -> Option<T>

Invokes the specified callback with a reference to the [winit::window::Window] that exists for this Slint window and returns Some(T); otherwise None.

Auto Trait Implementations§

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impl !RefUnwindSafe for Window

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impl !Send for Window

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impl !Sync for Window

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impl Unpin for Window

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impl !UnwindSafe for Window

Blanket Implementations§

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impl<T> Any for Twhere T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> Downcast for Twhere T: Any,

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fn into_any(self: Box<T>) -> Box<dyn Any>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.
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fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.
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fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for Twhere U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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fn vzip(self) -> V

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more