Package ch.bailu.gtk.gtk

Class ObjectExpression

java.lang.Object

ch.bailu.gtk.type.Type

ch.bailu.gtk.type.Pointer

ch.bailu.gtk.gtk.Expression

ch.bailu.gtk.gtk.ObjectExpression

All Implemented Interfaces:

PointerInterface

public class ObjectExpression
extends Expression

A `GObject` value in a `GtkExpression`.

https://docs.gtk.org/gtk4/class.ObjectExpression.html

Nested Class Summary

Nested classes/interfaces inherited from class ch.bailu.gtk.gtk.Expression

Expression.OnDestroyNotify, Expression.OnExpressionNotify

Field Summary

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

NULL

Constructor Summary

Constructors

Constructor	Description
ObjectExpression(Object object)	Creates an expression evaluating to the given `object` with a weak reference.
ObjectExpression(PointerContainer pointer)

Method Summary

Modifier and Type	Method	Description
static ClassHandler	getClassHandler()
static int	getInstanceSize()
Object	getObject()	Gets the object that the expression evaluates to.
static long	getParentTypeID()
static TypeSystem.TypeSize	getParentTypeSize()
static long	getTypeID()
static TypeSystem.TypeSize	getTypeSize()

Methods inherited from class ch.bailu.gtk.gtk.Expression

bind, bind, evaluate, getValueType, isStatic, ref, unref, watch

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

ObjectExpression

public ObjectExpression(PointerContainer pointer)

ObjectExpression

public ObjectExpression(@Nonnull
 Object object)

Creates an expression evaluating to the given `object` with a weak reference.

Once the `object` is disposed, it will fail to evaluate.

This expression is meant to break reference cycles.

If you want to keep a reference to `object`, use [ctor@Gtk.ConstantExpression.new].

Parameters:

object - object to watch

Method Details

getClassHandler

public static ClassHandler getClassHandler()

getObject

public Object getObject()

Gets the object that the expression evaluates to.

Returns:

the object, or `NULL`

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()