Package ch.bailu.gtk.gtk

Class Root

java.lang.Object

ch.bailu.gtk.type.Type

ch.bailu.gtk.type.Pointer

ch.bailu.gtk.gobject.Object

ch.bailu.gtk.type.Interface

ch.bailu.gtk.gtk.Root

All Implemented Interfaces:

PointerInterface

public class Root
extends Interface

`GtkRoot` is the interface implemented by all widgets that can act as a toplevel
widget.

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 `GtkRoot` is `GtkWindow`.

To get the display to which a `GtkRoot` belongs, use
[method@Gtk.Root.get_display].

`GtkRoot` also maintains the location of keyboard focus inside its widget
hierarchy, with [method@Gtk.Root.set_focus] and [method@Gtk.Root.get_focus].

https://docs.gtk.org/gtk4/iface.Root.html

Nested Class Summary

Nested classes/interfaces inherited from class ch.bailu.gtk.gobject.Object

Object.OnBindingTransformFunc, Object.OnDestroyNotify, Object.OnDuplicateFunc, Object.OnNotify, Object.OnToggleNotify, Object.OnWeakNotify

Field Summary

Fields inherited from class ch.bailu.gtk.gobject.Object

SIGNAL_ON_NOTIFY

Fields inherited from class ch.bailu.gtk.type.Pointer

NULL

Constructor Summary

Constructors

Constructor	Description
Root(PointerContainer pointer)

Method Summary

Modifier and Type	Method	Description
static ClassHandler	getClassHandler()
Display	getDisplay()	Returns the display that this `GtkRoot` is on.
Widget	getFocus()	Retrieves the current focused widget within the root.
static int	getInstanceSize()
static long	getParentTypeID()
static TypeSystem.TypeSize	getParentTypeSize()
static long	getTypeID()
static TypeSystem.TypeSize	getTypeSize()
void	setFocus(Widget focus)	If @focus is not the current focus widget, and is focusable, sets it as the focus widget for the root.

Methods inherited from class ch.bailu.gtk.gobject.Object

addToggleRef, bindProperty, bindProperty, bindPropertyFull, bindPropertyFull, bindPropertyWithClosures, bindPropertyWithClosures, compatControl, connect, connect, disconnect, disconnect, dupData, dupData, dupQdata, forceFloating, freezeNotify, get, get, getData, getData, getProperty, getProperty, getQdata, interfaceFindProperty, interfaceInstallProperty, isFloating, notify, notify, notifyByPspec, onNotify, ref, refSink, removeToggleRef, replaceData, replaceData, replaceQdata, runDispose, set, set, setData, setData, setDataFull, setDataFull, setProperty, setProperty, setQdata, setQdataFull, stealData, stealData, stealQdata, takeRef, thawNotify, unref, watchClosure, weakRef, weakUnref

Methods inherited from class ch.bailu.gtk.type.Pointer

asCPointer, cast, connectSignal, disconnectSignals, disconnectSignals, equals, hashCode, throwIfNull, throwNullPointerException, toString, unregisterCallbacks, unregisterCallbacks

Methods inherited from class ch.bailu.gtk.type.Type

asCPointer, asCPointer, asCPointerNotNull, asJnaPointer, asJnaPointer, asPointer, asPointer, cast, cast, throwIfNull

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface ch.bailu.gtk.type.PointerInterface

asCPointerNotNull, asJnaPointer, asPointer, isNotNull, isNull

Constructor Details

Root

public Root(PointerContainer pointer)

Method Details

getClassHandler

public static ClassHandler getClassHandler()

getDisplay

public Display getDisplay()

Returns the display that this `GtkRoot` is on.

Returns:

the display of @root

getFocus

public Widget getFocus()

Retrieves the current focused widget within the root.

Note that this is the widget that would have the focus
if the root is active; if the root is not focused then
`gtk_widget_has_focus (widget)` will be %FALSE for the
widget.

Returns:

the currently focused widget

setFocus

public void setFocus(@Nullable
 Widget focus)

If @focus is not the current focus widget, and is focusable, sets
it as the focus widget for the root.

If @focus is %NULL, unsets the focus widget for the root.

To set the focus to a particular widget in the root, it is usually
more convenient to use [method@Gtk.Widget.grab_focus] instead of
this function.

Parameters:

focus - widget to be the new focus widget, or %NULL to unset the focus widget

getTypeID

public static long getTypeID()

getParentTypeID

public static long getParentTypeID()

getTypeSize

public static TypeSystem.TypeSize getTypeSize()

getParentTypeSize

public static TypeSystem.TypeSize getParentTypeSize()

getInstanceSize

public static int getInstanceSize()