Struct gtk4::Widget

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#[repr(transparent)]
pub struct Widget { /* private fields */ }

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pub const NONE: Option<&'static Widget> = None

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pub fn default_direction() -> TextDirection

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pub fn set_default_direction(dir: TextDirection)

Trait Implementations§

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fn clone(&self) -> Self

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

Formats the value using the given formatter. Read more

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

Formats the value using the given formatter. Read more

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fn hash<H>(&self, state: &mut H)where H: Hasher,

Feeds this value into the given Hasher. Read more

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fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more

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fn class_init(class: &mut Class<Self>)

Override the virtual methods of this class for the given subclass and do other class initialization. Read more

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fn instance_init(instance: &mut InitializingObject<T>)

Instance specific initialization. Read more

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fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other. Read more

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fn max(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the maximum of two values. Read more

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fn min(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the minimum of two values. Read more

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fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval. Read more

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fn eq(&self, other: &OT) -> bool

This method tests for self and other values to be equal, and is used by ==.

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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

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fn partial_cmp(&self, other: &OT) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more

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fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more

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fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more

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fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more

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fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more

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fn static_type() -> Type

Returns the type identifier of Self.

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impl IsA<Widget> for ColorDialogButton

Available on crate feature v4_10 only.

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impl IsA<Widget> for ColumnView

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impl IsA<Widget> for ComboBoxText

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impl IsA<Widget> for DrawingArea

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impl IsA<Widget> for EditableLabel

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impl IsA<Widget> for EmojiChooser

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impl IsA<Widget> for FileChooserDialog

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impl IsA<Widget> for FileChooserWidget

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impl IsA<Widget> for FlowBoxChild

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impl IsA<Widget> for FontButton

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impl IsA<Widget> for FontChooserDialog

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impl IsA<Widget> for FontChooserWidget

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impl IsA<Widget> for FontDialogButton

Available on crate feature v4_10 only.

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impl IsA<Widget> for HeaderBar

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impl IsA<Widget> for Inscription

Available on crate feature v4_8 only.

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impl IsA<Widget> for LinkButton

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impl IsA<Widget> for ListBoxRow

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impl IsA<Widget> for LockButton

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impl IsA<Widget> for MediaControls

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impl IsA<Widget> for MenuButton

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impl IsA<Widget> for MessageDialog

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impl IsA<Widget> for PageSetupUnixDialog

Available on Linux only.

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impl IsA<Widget> for PasswordEntry

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impl IsA<Widget> for PopoverMenu

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impl IsA<Widget> for PopoverMenuBar

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impl IsA<Widget> for PrintUnixDialog

Available on Linux only.

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impl IsA<Widget> for ProgressBar

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impl IsA<Widget> for ScaleButton

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impl IsA<Widget> for Scrollbar

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impl IsA<Widget> for ScrolledWindow

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impl IsA<Widget> for SearchBar

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impl IsA<Widget> for SearchEntry

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impl IsA<Widget> for Separator

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impl IsA<Widget> for ShortcutLabel

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impl IsA<Widget> for ShortcutsGroup

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impl IsA<Widget> for ShortcutsSection

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impl IsA<Widget> for ShortcutsShortcut

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impl IsA<Widget> for ShortcutsWindow

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impl IsA<Widget> for SpinButton

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impl IsA<Widget> for StackSidebar

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impl IsA<Widget> for StackSwitcher

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impl IsA<Widget> for Statusbar

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impl IsA<Widget> for ToggleButton

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impl IsA<Widget> for TreeExpander

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impl IsA<Widget> for VolumeButton

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impl IsA<Widget> for WindowControls

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impl IsA<Widget> for WindowHandle

Auto Trait Implementations§

Blanket Implementations§

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fn update_property(&self, properties: &[Property<'_>])

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fn update_relation(&self, relations: &[Relation<'_>])

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fn update_state(&self, states: &[State])

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

Mutably borrows from an owned value. Read more

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fn upcast<T>(self) -> Twhere T: ObjectType, Self: IsA<T>,

Upcasts an object to a superclass or interface T. Read more

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fn upcast_ref<T>(&self) -> &Twhere T: ObjectType, Self: IsA<T>,

Upcasts an object to a reference of its superclass or interface T. Read more

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fn downcast<T>(self) -> Result<T, Self>where T: ObjectType, Self: CanDowncast<T>,

Tries to downcast to a subclass or interface implementor T. Read more

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fn downcast_ref<T>(&self) -> Option<&T>where T: ObjectType, Self: CanDowncast<T>,

Tries to downcast to a reference of its subclass or interface implementor T. Read more

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fn dynamic_cast<T>(self) -> Result<T, Self>where T: ObjectType,

Tries to cast to an object of type T. This handles upcasting, downcasting and casting between interface and interface implementors. All checks are performed at runtime, while downcast and upcast will do many checks at compile-time already. Read more

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fn dynamic_cast_ref<T>(&self) -> Option<&T>where T: ObjectType,

Tries to cast to reference to an object of type T. This handles upcasting, downcasting and casting between interface and interface implementors. All checks are performed at runtime, while downcast and upcast will do many checks at compile-time already. Read more

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unsafe fn unsafe_cast<T>(self) -> Twhere T: ObjectType,

Casts to T unconditionally. Read more

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unsafe fn unsafe_cast_ref<T>(&self) -> &Twhere T: ObjectType,

Casts to &T unconditionally. Read more

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fn from(t: T) -> T

Returns the argument unchanged.

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unsafe fn from_glib_none_num_as_vec( ptr: *const GList, num: usize ) -> Vec<T, Global>

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unsafe fn from_glib_container_num_as_vec( _: *const GList, _: usize ) -> Vec<T, Global>

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unsafe fn from_glib_full_num_as_vec(_: *const GList, _: usize) -> Vec<T, Global>

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unsafe fn from_glib_none_num_as_vec( ptr: *const GPtrArray, num: usize ) -> Vec<T, Global>

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unsafe fn from_glib_container_num_as_vec( _: *const GPtrArray, _: usize ) -> Vec<T, Global>

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unsafe fn from_glib_full_num_as_vec( _: *const GPtrArray, _: usize ) -> Vec<T, Global>

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unsafe fn from_glib_none_num_as_vec( ptr: *const GSList, num: usize ) -> Vec<T, Global>

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unsafe fn from_glib_container_num_as_vec( _: *const GSList, _: usize ) -> Vec<T, Global>

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unsafe fn from_glib_full_num_as_vec( _: *const GSList, _: usize ) -> Vec<T, Global>

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unsafe fn from_glib_none_num_as_vec( ptr: *mut GList, num: usize ) -> Vec<T, Global>

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unsafe fn from_glib_container_num_as_vec( ptr: *mut GList, num: usize ) -> Vec<T, Global>

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unsafe fn from_glib_full_num_as_vec( ptr: *mut GList, num: usize ) -> Vec<T, Global>

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unsafe fn from_glib_none_num_as_vec( ptr: *mut GPtrArray, num: usize ) -> Vec<T, Global>

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unsafe fn from_glib_container_num_as_vec( ptr: *mut GPtrArray, num: usize ) -> Vec<T, Global>

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unsafe fn from_glib_full_num_as_vec( ptr: *mut GPtrArray, num: usize ) -> Vec<T, Global>

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unsafe fn from_glib_none_num_as_vec( ptr: *mut GSList, num: usize ) -> Vec<T, Global>

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unsafe fn from_glib_container_num_as_vec( ptr: *mut GSList, num: usize ) -> Vec<T, Global>

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unsafe fn from_glib_full_num_as_vec( ptr: *mut GSList, num: usize ) -> Vec<T, Global>

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unsafe fn from_glib_none_as_vec(ptr: *const GList) -> Vec<T, Global>

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unsafe fn from_glib_container_as_vec(_: *const GList) -> Vec<T, Global>

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unsafe fn from_glib_full_as_vec(_: *const GList) -> Vec<T, Global>

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unsafe fn from_glib_none_as_vec(ptr: *const GPtrArray) -> Vec<T, Global>

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unsafe fn from_glib_container_as_vec(_: *const GPtrArray) -> Vec<T, Global>

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unsafe fn from_glib_full_as_vec(_: *const GPtrArray) -> Vec<T, Global>

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unsafe fn from_glib_none_as_vec(ptr: *const GSList) -> Vec<T, Global>

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unsafe fn from_glib_container_as_vec(_: *const GSList) -> Vec<T, Global>

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unsafe fn from_glib_full_as_vec(_: *const GSList) -> Vec<T, Global>

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unsafe fn from_glib_none_as_vec(ptr: *mut GList) -> Vec<T, Global>

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unsafe fn from_glib_container_as_vec(ptr: *mut GList) -> Vec<T, Global>

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unsafe fn from_glib_full_as_vec(ptr: *mut GList) -> Vec<T, Global>

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unsafe fn from_glib_none_as_vec(ptr: *mut GPtrArray) -> Vec<T, Global>

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unsafe fn from_glib_container_as_vec(ptr: *mut GPtrArray) -> Vec<T, Global>

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unsafe fn from_glib_full_as_vec(ptr: *mut GPtrArray) -> Vec<T, Global>

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unsafe fn from_glib_none_as_vec(ptr: *mut GSList) -> Vec<T, Global>

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unsafe fn from_glib_container_as_vec(ptr: *mut GSList) -> Vec<T, Global>

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unsafe fn from_glib_full_as_vec(ptr: *mut GSList) -> Vec<T, Global>

const: unstable · source§

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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fn parent_class_init<T>(class: &mut Class)where T: ObjectSubclass, ::Parent: IsSubclassable<T>,

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fn parent_instance_init<T>(instance: &mut InitializingObject<T>)where T: ObjectSubclass, ::Parent: IsSubclassable<T>,

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fn is(&self) -> boolwhere U: StaticType,

Returns true if the object is an instance of (can be cast to) T.

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fn type_(&self) -> Type

Returns the type of the object.

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fn object_class(&self) -> &Class<Object>

Returns the ObjectClass of the object. Read more

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fn class(&self) -> &Class<T>where T: IsClass,

Returns the class of the object.

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fn class_of(&self) -> Option<&Class>where U: IsClass,

Returns the class of the object in the given type T. Read more

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fn interface(&self) -> Option<InterfaceRef<'_, U>>where U: IsInterface,

Returns the interface T of the object. Read more

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fn set_property<V>(&self, property_name: &str, value: V)where V: ToValue,

Sets the property property_name of the object to value value. Read more

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fn set_property_from_value(&self, property_name: &str, value: &Value)

Sets the property property_name of the object to value value. Read more

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fn set_properties(&self, property_values: &[(&str, &dyn ToValue)])

Sets multiple properties of the object at once. Read more

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fn set_properties_from_value(&self, property_values: &[(&str, Value)])

Sets multiple properties of the object at once. Read more

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fn property<V>(&self, property_name: &str) -> Vwhere V: for<'b> FromValue<'b> + 'static,

Gets the property property_name of the object and cast it to the type V. Read more

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fn property_value(&self, property_name: &str) -> Value

Gets the property property_name of the object. Read more

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fn has_property(&self, property_name: &str, type_: Option<Type>) -> bool

Check if the object has a property property_name of the given type_. Read more

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fn property_type(&self, property_name: &str) -> Option<Type>

Get the type of the property property_name of this object. Read more

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fn find_property(&self, property_name: &str) -> Option<ParamSpec>

Get the ParamSpec of the property property_name of this object.

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fn list_properties(&self) -> PtrSlice<ParamSpec>

Return all ParamSpec of the properties of this object.

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fn freeze_notify(&self) -> PropertyNotificationFreezeGuard

Freeze all property notifications until the return guard object is dropped. Read more

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unsafe fn set_qdata<QD>(&self, key: Quark, value: QD)where QD: 'static,

Set arbitrary data on this object with the given key. Read more

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unsafe fn qdata<QD>(&self, key: Quark) -> Option<NonNull<QD>>where QD: 'static,

Return previously set arbitrary data of this object with the given key. Read more

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unsafe fn steal_qdata<QD>(&self, key: Quark) -> Option<QD>where QD: 'static,

Retrieve previously set arbitrary data of this object with the given key. Read more

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unsafe fn set_data<QD>(&self, key: &str, value: QD)where QD: 'static,

Set arbitrary data on this object with the given key. Read more

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unsafe fn data<QD>(&self, key: &str) -> Option<NonNull<QD>>where QD: 'static,

Return previously set arbitrary data of this object with the given key. Read more

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unsafe fn steal_data<QD>(&self, key: &str) -> Option<QD>where QD: 'static,

Retrieve previously set arbitrary data of this object with the given key. Read more

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fn block_signal(&self, handler_id: &SignalHandlerId)

Block a given signal handler. Read more

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fn unblock_signal(&self, handler_id: &SignalHandlerId)

Unblock a given signal handler.

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fn stop_signal_emission(&self, signal_id: SignalId, detail: Option<Quark>)

Stop emission of the currently emitted signal.

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fn stop_signal_emission_by_name(&self, signal_name: &str)

Stop emission of the currently emitted signal by the (possibly detailed) signal name.

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fn connect<F>( &self, signal_name: &str, after: bool, callback: F ) -> SignalHandlerIdwhere F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static,

Connect to the signal signal_name on this object. Read more

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fn connect_id<F>( &self, signal_id: SignalId, details: Option<Quark>, after: bool, callback: F ) -> SignalHandlerIdwhere F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static,

Connect to the signal signal_id on this object. Read more

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fn connect_local<F>( &self, signal_name: &str, after: bool, callback: F ) -> SignalHandlerIdwhere F: Fn(&[Value]) -> Option<Value> + 'static,

Connect to the signal signal_name on this object. Read more

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fn connect_local_id<F>( &self, signal_id: SignalId, details: Option<Quark>, after: bool, callback: F ) -> SignalHandlerIdwhere F: Fn(&[Value]) -> Option<Value> + 'static,

Connect to the signal signal_id on this object. Read more

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unsafe fn connect_unsafe<F>( &self, signal_name: &str, after: bool, callback: F ) -> SignalHandlerIdwhere F: Fn(&[Value]) -> Option<Value>,

Connect to the signal signal_name on this object. Read more

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unsafe fn connect_unsafe_id<F>( &self, signal_id: SignalId, details: Option<Quark>, after: bool, callback: F ) -> SignalHandlerIdwhere F: Fn(&[Value]) -> Option<Value>,

Connect to the signal signal_id on this object. Read more

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fn connect_closure( &self, signal_name: &str, after: bool, closure: RustClosure ) -> SignalHandlerId

Connect a closure to the signal signal_name on this object. Read more

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fn connect_closure_id( &self, signal_id: SignalId, details: Option<Quark>, after: bool, closure: RustClosure ) -> SignalHandlerId

Connect a closure to the signal signal_id on this object. Read more

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fn watch_closure(&self, closure: &impl AsRef<Closure>)

Limits the lifetime of closure to the lifetime of the object. When the object’s reference count drops to zero, the closure will be invalidated. An invalidated closure will ignore any calls to invoke_with_values, or invoke when using Rust closures.

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