gtk4::subclass::widget

Struct TemplateChild

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

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impl<T> TemplateChild<T>

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pub fn get(&self) -> T

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pub fn is_bound(&self) -> bool

Determines if the child has been bound. This is primarily useful for implementing the Buildable interface.

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pub fn try_get(&self) -> Option<T>

Returns Some(child) if the widget has been bound.

Trait Implementations§

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impl<T> Debug for TemplateChild<T>

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

Formats the value using the given formatter. Read more
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impl<T> Default for TemplateChild<T>

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl<T> Deref for TemplateChild<T>

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type Target = T

The resulting type after dereferencing.
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fn deref(&self) -> &Self::Target

Dereferences the value.
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impl<T> Downgrade for TemplateChild<T>

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type Weak = <T as Downgrade>::Weak

Weak reference type.
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fn downgrade(&self) -> Self::Weak

Downgrade to a weak reference.
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impl<T> PartialEq for TemplateChild<T>

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fn eq(&self, other: &TemplateChild<T>) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<T> Property for TemplateChild<T>

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impl<T> PropertyGet for TemplateChild<T>

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type Value = T

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fn get<R, F: Fn(&Self::Value) -> R>(&self, f: F) -> R

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impl<T> Eq for TemplateChild<T>

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impl<T> StructuralPartialEq for TemplateChild<T>

Auto Trait Implementations§

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impl<T> Freeze for TemplateChild<T>

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impl<T> RefUnwindSafe for TemplateChild<T>

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impl<T> !Send for TemplateChild<T>

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impl<T> !Sync for TemplateChild<T>

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impl<T> Unpin for TemplateChild<T>

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impl<T> UnwindSafe for TemplateChild<T>

Blanket Implementations§

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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> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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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<P, T> Receiver for P
where P: Deref<Target = T> + ?Sized, T: ?Sized,

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type Target = T

🔬This is a nightly-only experimental API. (arbitrary_self_types)
The target type on which the method may be called.
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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.