Struct Root

pub struct Root { /* private fields */ }

An interface for widgets that can act as the root of a widget hierarchy.

The root widget takes care of providing the connection to the windowing system and manages layout, drawing and event delivery for its widget hierarchy.

The obvious example of a Root is Window.

To get the display to which a Root belongs, use RootExt::display().

Root also maintains the location of keyboard focus inside its widget hierarchy, with RootExt::set_focus() and RootExt::focus().

Implements

RootExt, NativeExt, WidgetExt, [trait@glib::ObjectExt], AccessibleExt, BuildableExt, ConstraintTargetExt, WidgetExtManual, AccessibleExtManual

GLib type: GObject with reference counted clone semantics.

Implementations

impl Root

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

Trait Implementations

impl Clone for Root

fn clone(&self) -> Self

Makes a clone of this shared reference.

This increments the strong reference count of the object. Dropping the object will decrement it again.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Root

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

Formats the value using the given formatter.

impl HasParamSpec for Root

type ParamSpec = ParamSpecObject

type SetValue = Root

Preferred value to be used as setter for the associated ParamSpec.

type BuilderFn = fn(_: &str) -> ParamSpecObjectBuilder<'_, Root>

fn param_spec_builder() -> Self::BuilderFn

impl Hash for Root

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

where H: Hasher,

Hashes the memory address of this object.

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

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Root

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

Comparison for two GObjects.

Compares the memory addresses of the provided objects.

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

where Self: Sized,

Compares and returns the maximum of two values.

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

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl<OT: ObjectType> PartialEq<OT> for Root

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

Equality for two GObjects.

Two GObjects are equal if their memory addresses are equal.

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

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

impl<OT: ObjectType> PartialOrd<OT> for Root

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

Partial comparison for two GObjects.

Compares the memory addresses of the provided objects.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StaticType for Root

fn static_type() -> Type

Returns the type identifier of Self.

impl Eq for Root

impl IsA<Accessible> for Root

impl IsA<Buildable> for Root

impl IsA<ConstraintTarget> for Root

impl IsA<Native> for Root

impl IsA<Root> for AboutDialog

impl IsA<Root> for AppChooserDialog

impl IsA<Root> for ApplicationWindow

impl IsA<Root> for Assistant

impl IsA<Root> for ColorChooserDialog

impl IsA<Root> for Dialog

impl IsA<Root> for DragIcon

impl IsA<Root> for FileChooserDialog

impl IsA<Root> for FontChooserDialog

impl IsA<Root> for MessageDialog

impl IsA<Root> for PageSetupUnixDialog

Available on Linux only.

impl IsA<Root> for PrintUnixDialog

Available on Linux only.

impl IsA<Root> for ShortcutsWindow

impl IsA<Root> for Window

impl IsA<Widget> for Root