Struct Area

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pub struct Area { /* private fields */ }
Expand description

An area on the screen that can be moved by dragging.

This forms the base of the Window container.

egui::Area::new("my_area")
    .fixed_pos(egui::pos2(32.0, 32.0))
    .show(ctx, |ui| {
        ui.label("Floating text!");
    });

The previous rectangle used by this area can be obtained through crate::Memory::area_rect().

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impl Area

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pub fn new(id: impl Into<Id>) -> Area

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pub fn id(self, id: Id) -> Area

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pub fn layer(&self) -> LayerId

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pub fn enabled(self, enabled: bool) -> Area

If false, no content responds to click and widgets will be shown grayed out. You won’t be able to move the window. Default: true.

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pub fn movable(self, movable: bool) -> Area

moveable by dragging the area?

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pub fn is_enabled(&self) -> bool

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pub fn is_movable(&self) -> bool

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pub fn interactable(self, interactable: bool) -> Area

If false, clicks goes straight through to what is behind us. Good for tooltips etc.

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pub fn order(self, order: Order) -> Area

order(Order::Foreground) for an Area that should always be on top

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pub fn default_pos(self, default_pos: impl Into<Pos2>) -> Area

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pub fn fixed_pos(self, fixed_pos: impl Into<Pos2>) -> Area

Positions the window and prevents it from being moved

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pub fn constrain(self, constrain: bool) -> Area

Constrains this area to the screen bounds.

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pub fn constrain_to(self, constrain_rect: Rect) -> Area

Constraint the movement of the window to the given rectangle.

For instance: .constrain_to(ctx.screen_rect()).

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pub fn drag_bounds(self, constrain_rect: Rect) -> Area

👎Deprecated: Use constrain_to instead
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pub fn pivot(self, pivot: Align2) -> Area

Where the “root” of the area is.

For instance, if you set this to Align2::RIGHT_TOP then Self::fixed_pos will set the position of the right-top corner of the area.

Default: Align2::LEFT_TOP.

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pub fn current_pos(self, current_pos: impl Into<Pos2>) -> Area

Positions the window but you can still move it.

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pub fn anchor(self, align: Align2, offset: impl Into<Vec2>) -> Area

Set anchor and distance.

An anchor of Align2::RIGHT_TOP means “put the right-top corner of the window in the right-top corner of the screen”.

The offset is added to the position, so e.g. an offset of [-5.0, 5.0] would move the window left and down from the given anchor.

Anchoring also makes the window immovable.

It is an error to set both an anchor and a position.

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impl Area

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pub fn show<R>( self, ctx: &Context, add_contents: impl FnOnce(&mut Ui) -> R, ) -> InnerResponse<R>

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pub fn show_open_close_animation( &self, ctx: &Context, frame: &Frame, is_open: bool, )

Trait Implementations§

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impl Clone for Area

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fn clone(&self) -> Area

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Area

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

Formats the value using the given formatter. Read more
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impl Copy for Area

Auto Trait Implementations§

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impl Freeze for Area

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impl RefUnwindSafe for Area

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impl Send for Area

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impl Sync for Area

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impl Unpin for Area

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impl UnwindSafe for Area

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impl<T> Any for T
where 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 T
where 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 T
where 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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> Content for T
where T: Copy,

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type Owned = T

A type that holds a sized version of the content.
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unsafe fn read<F, E>(size: usize, f: F) -> Result<T, E>
where F: FnOnce(&mut T) -> Result<(), E>,

Prepares an output buffer, then turns this buffer into an Owned. User-provided closure F must only write to and not read from &mut Self.
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fn get_elements_size() -> usize

Returns the size of each element.
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fn to_void_ptr(&self) -> *const ()

Produces a pointer to the data.
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fn ref_from_ptr<'a>(ptr: *mut (), size: usize) -> Option<*mut T>

Builds a pointer to this type from a raw pointer.
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fn is_size_suitable(size: usize) -> bool

Returns true if the size is suitable to store a type like this.
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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<S> FromSample<S> for S

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fn from_sample_(s: S) -> S

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impl<T, U> Into<U> for T
where 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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<F, T> IntoSample<T> for F
where T: FromSample<F>,

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fn into_sample(self) -> T

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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<SS, SP> SupersetOf<SS> for SP
where SS: SubsetOf<SP>,

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fn to_subset(&self) -> Option<SS>

The inverse inclusion map: attempts to construct self from the equivalent element of its superset. Read more
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fn is_in_subset(&self) -> bool

Checks if self is actually part of its subset T (and can be converted to it).
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fn to_subset_unchecked(&self) -> SS

Use with care! Same as self.to_subset but without any property checks. Always succeeds.
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fn from_subset(element: &SS) -> SP

The inclusion map: converts self to the equivalent element of its superset.
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> ToSample<U> for T
where U: FromSample<T>,

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fn to_sample_(self) -> U

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impl<T, U> TryFrom<U> for T
where 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 T
where 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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impl<S, T> Duplex<S> for T
where T: FromSample<S> + ToSample<S>,

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impl<T> ErasedDestructor for T
where T: 'static,

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impl<T> SerializableAny for T
where T: 'static + Any + Clone + for<'a> Send + Sync,