Package org.gnome.gtk

Class CheckButton

java.lang.Object

io.github.jwharm.javagi.base.ProxyInstance

org.gnome.gobject.TypeInstance

org.gnome.gobject.GObject

org.gnome.gobject.InitiallyUnowned

org.gnome.gtk.Widget

org.gnome.gtk.CheckButton

All Implemented Interfaces:

Proxy, Accessible, Actionable, Buildable, ConstraintTarget

@Generated("io.github.jwharm.JavaGI")
public class CheckButton
extends Widget
implements Accessible, Actionable, Buildable, ConstraintTarget

A GtkCheckButton places a label next to an indicator.

A GtkCheckButton is created by calling either CheckButton() or withLabel(java.lang.String).

The state of a GtkCheckButton can be set specifically using setActive(boolean), and retrieved using getActive().

Inconsistent state
In addition to "on" and "off", check buttons can be an "in between" state that is neither on nor off. This can be used e.g. when the user has selected a range of elements (such as some text or spreadsheet cells) that are affected by a check button, and the current values in that range are inconsistent.

To set a GtkCheckButton to inconsistent state, use setInconsistent(boolean).

Grouping
Check buttons can be grouped together, to form mutually exclusive groups - only one of the buttons can be toggled at a time, and toggling another one will switch the currently toggled one off.

Grouped check buttons use a different indicator, and are commonly referred to as *radio buttons*.

To add a GtkCheckButton to a group, use setGroup(org.gnome.gtk.CheckButton).

When the code must keep track of the state of a group of radio buttons, it is recommended to keep track of such state through a stateful GAction with a target for each button. Using the toggled signals to keep track of the group changes and state is discouraged.

Shortcuts and Gestures
GtkCheckButton supports the following keyboard shortcuts:

• ␣ or Enter activates the button.

CSS nodes

 checkbutton[.text-button][.grouped]
 ├── check
 ╰── [label]
 

A GtkCheckButton has a main node with name checkbutton. If the Gtk.CheckButton:label or Gtk.CheckButton:child properties are set, it contains a child widget. The indicator node is named check when no group is set, and radio if the checkbutton is grouped together with other checkbuttons.

Accessibility
GtkCheckButton uses the AccessibleRole.CHECKBOX role.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	CheckButton.ActivateCallback	Functional interface declaration of the ActivateCallback callback.
static class	CheckButton.Builder<B extends CheckButton.Builder<B>>	Inner class implementing a builder pattern to construct a GObject with properties.
static class	CheckButton.CheckButtonClass
static interface	CheckButton.ToggledCallback	Functional interface declaration of the ToggledCallback callback.

Nested classes/interfaces inherited from class org.gnome.gtk.Widget

Widget.DestroyCallback, Widget.DirectionChangedCallback, Widget.HideCallback, Widget.KeynavFailedCallback, Widget.MapCallback, Widget.MnemonicActivateCallback, Widget.MoveFocusCallback, Widget.QueryTooltipCallback, Widget.RealizeCallback, Widget.ShowCallback, Widget.StateFlagsChangedCallback, Widget.UnmapCallback, Widget.UnrealizeCallback, Widget.WidgetClass, Widget.WidgetImpl

Nested classes/interfaces inherited from class org.gnome.gobject.InitiallyUnowned

InitiallyUnowned.InitiallyUnownedClass

Nested classes/interfaces inherited from class org.gnome.gobject.GObject

GObject.NotifyCallback, GObject.ObjectClass

Nested classes/interfaces inherited from interface org.gnome.gtk.Accessible

Accessible.AccessibleImpl, Accessible.AccessibleInterface

Nested classes/interfaces inherited from interface org.gnome.gtk.Actionable

Actionable.ActionableImpl, Actionable.ActionableInterface

Nested classes/interfaces inherited from interface org.gnome.gtk.Buildable

Buildable.BuildableIface, Buildable.BuildableImpl

Nested classes/interfaces inherited from interface org.gnome.gtk.ConstraintTarget

ConstraintTarget.ConstraintTargetImpl, ConstraintTarget.ConstraintTargetInterface

Constructor Summary

Constructors

Constructor	Description
CheckButton()	Creates a new GtkCheckButton.
CheckButton(MemorySegment address)	Create a CheckButton proxy instance for the provided memory address.

Method Summary

Modifier and Type	Method	Description
protected void	activate()
protected CheckButton	asParent()	Returns this instance as if it were its parent type.
static CheckButton.Builder<? extends CheckButton.Builder>	builder()	A CheckButton.Builder object constructs a CheckButton with the specified properties.
void	emitActivate()	Emits the "activate" signal.
void	emitToggled()	Emits the "toggled" signal.
boolean	getActive()	Returns whether the check button is active.
Widget	getChild()	Gets the child widget of this CheckButton or NULL if CheckButton:label is set.
boolean	getInconsistent()	Returns whether the check button is in an inconsistent state.
String	getLabel()	Returns the label of the check button or NULL if CheckButton:child is set.
static MemoryLayout	getMemoryLayout()	The memory layout of the native struct.
static Type	getType()	Get the GType of the CheckButton class
boolean	getUseUnderline()	Returns whether underlines in the label indicate mnemonics.
SignalConnection<CheckButton.ActivateCallback>	onActivate(CheckButton.ActivateCallback handler)	Emitted to when the check button is activated.
SignalConnection<CheckButton.ToggledCallback>	onToggled(CheckButton.ToggledCallback handler)	Emitted when the buttons's Gtk.CheckButton:active property changes.
void	setActive(boolean setting)	Changes the check buttons active state.
void	setChild(@Nullable Widget child)	Sets the child widget of this CheckButton.
void	setGroup(@Nullable CheckButton group)	Adds this CheckButton to the group of group.
void	setInconsistent(boolean inconsistent)	Sets the GtkCheckButton to inconsistent state.
void	setLabel(@Nullable String label)	Sets the text of this CheckButton.
void	setUseUnderline(boolean setting)	Sets whether underlines in the label indicate mnemonics.
protected void	toggled()
static CheckButton	withLabel(@Nullable String label)	Creates a new GtkCheckButton with the given text.
static CheckButton	withMnemonic(@Nullable String label)	Creates a new GtkCheckButton with the given text and a mnemonic.

Methods inherited from class org.gnome.gtk.Widget

actionSetEnabled, activateActionIfExists, activateDefault, activateWidget, addController, addCssClass, addMnemonicLabel, addTickCallback, allocate, childFocus, computeBounds, computeExpand, computeExpand, computePoint, computeTransform, contains, createPangoContext, createPangoLayout, cssChanged, directionChanged, disposeTemplate, dragCheckThreshold, emitDestroy, emitDirectionChanged, emitHide, emitKeynavFailed, emitMap, emitMnemonicActivate, emitMoveFocus, emitQueryTooltip, emitRealize, emitShow, emitStateFlagsChanged, emitUnmap, emitUnrealize, errorBell, focus, getAllocatedBaseline, getAllocatedHeight, getAllocatedWidth, getAllocation, getAncestor, getBaseline, getCanFocus, getCanTarget, getChildVisible, getClipboard, getColor, getCssClasses, getCssName, getCursor, getDefaultDirection, getDirection, getDisplay, getFirstChild, getFocusable, getFocusChild, getFocusOnClick, getFontMap, getFontOptions, getFrameClock, getHalign, getHasTooltip, getHeight, getHexpand, getHexpandSet, getLastChild, getLayoutManager, getMapped, getMarginBottom, getMarginEnd, getMarginStart, getMarginTop, getName, getNative, getNextSibling, getOpacity, getOverflow, getPangoContext, getParent, getPreferredSize, getPrevSibling, getPrimaryClipboard, getRealized, getReceivesDefault, getRequestMode, getRoot, getScaleFactor, getSensitive, getSettings, getSize, getSizeRequest, getStateFlags, getStyleContext, getTemplateChild, getTooltipMarkup, getTooltipText, getValign, getVexpand, getVexpandSet, getVisible, getWidth, grabFocus, hasCssClass, hasDefault, hasFocus, hasVisibleFocus, hide, inDestruction, initTemplate, insertActionGroup, insertAfter, insertBefore, isAncestor, isDrawable, isFocus, isSensitive, isVisible, keynavFailed, listMnemonicLabels, map, measure, mnemonicActivate, moveFocus, observeChildren, observeControllers, onDestroy, onDirectionChanged, onHide, onKeynavFailed, onMap, onMnemonicActivate, onMoveFocus, onQueryTooltip, onRealize, onShow, onStateFlagsChanged, onUnmap, onUnrealize, pick, pick, queryTooltip, queueAllocate, queueDraw, queueResize, realize, removeController, removeCssClass, removeMnemonicLabel, removeTickCallback, root, setCanFocus, setCanTarget, setChildVisible, setCssClasses, setCursor, setCursorFromName, setDefaultDirection, setDirection, setFocusable, setFocusChild, setFocusOnClick, setFontMap, setFontOptions, setHalign, setHasTooltip, setHexpand, setHexpandSet, setLayoutManager, setMarginBottom, setMarginEnd, setMarginStart, setMarginTop, setName, setOpacity, setOverflow, setParent, setReceivesDefault, setSensitive, setSizeRequest, setStateFlags, setStateFlags, setTooltipMarkup, setTooltipText, setValign, setVexpand, setVexpandSet, setVisible, shouldLayout, show, sizeAllocate, sizeAllocate, snapshot, snapshotChild, stateFlagsChanged, systemSettingChanged, translateCoordinates, triggerTooltipQuery, unmap, unparent, unrealize, unroot, unsetStateFlags, unsetStateFlags

Methods inherited from class org.gnome.gobject.GObject

addToggleRef, addWeakPointer, bindProperty, bindProperty, bindProperty, bindPropertyFull, bindPropertyFull, bindPropertyWithClosures, bindPropertyWithClosures, compatControl, connect, connect, connect, constructed, disconnect, dispatchPropertiesChanged, dispose, dupData, dupQdata, emit, emitNotify, finalize_, forceFloating, freezeNotify, get, getData, getProperty, getProperty, getProperty, getQdata, getv, interfaceFindProperty, interfaceInstallProperty, interfaceListProperties, isFloating, newInstance, newInstance, newInstance, newInstance, newv, notify_, notify_, notifyByPspec, onNotify, ref, refSink, removeToggleRef, removeWeakPointer, replaceData, replaceQdata, runDispose, set, setData, setDataFull, setProperty, setProperty, setProperty, setQdata, setQdataFull, setv, stealData, stealQdata, takeRef, thawNotify, unref, watchClosure, weakRef, weakUnref, withProperties

Methods inherited from class org.gnome.gobject.TypeInstance

callParent, callParent, getPrivate, readGClass, writeGClass

Methods inherited from class io.github.jwharm.javagi.base.ProxyInstance

equals, handle, hashCode

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.gnome.gtk.Accessible

announce, getAccessibleParent, getAccessibleRole, getAtContext, getBounds, getFirstAccessibleChild, getNextAccessibleSibling, getPlatformState, resetProperty, resetRelation, resetState, setAccessibleParent, updateNextAccessibleSibling, updateProperty, updateRelation, updateState

Methods inherited from interface org.gnome.gtk.Actionable

getActionName, getActionTargetValue, setActionName, setActionTarget, setActionTargetValue, setDetailedActionName

Methods inherited from interface org.gnome.gtk.Buildable

getBuildableId

Methods inherited from interface io.github.jwharm.javagi.base.Proxy

handle

Constructor Details

CheckButton

public CheckButton(MemorySegment address)

Create a CheckButton proxy instance for the provided memory address.

Parameters:

address - the memory address of the native object

CheckButton

public CheckButton()

Creates a new GtkCheckButton.

Method Details

getType

public static Type getType()

Get the GType of the CheckButton class

Returns:

the GType

getMemoryLayout

public static MemoryLayout getMemoryLayout()

The memory layout of the native struct.

Returns:

the memory layout

asParent

protected CheckButton asParent()

Returns this instance as if it were its parent type. This is mostly synonymous to the Java super keyword, but will set the native typeclass function pointers to the parent type. When overriding a native virtual method in Java, "chaining up" with super.methodName() doesn't work, because it invokes the overridden function pointer again. To chain up, call asParent().methodName(). This will call the native function pointer of this virtual method in the typeclass of the parent type.

Overrides:

asParent in class Widget

withLabel

public static CheckButton withLabel(@Nullable
 @Nullable String label)

Creates a new GtkCheckButton with the given text.

Parameters:

label - the text for the check button.

Returns:

a new GtkCheckButton

withMnemonic

public static CheckButton withMnemonic(@Nullable
 @Nullable String label)

Creates a new GtkCheckButton with the given text and a mnemonic.

Parameters:

label - The text of the button, with an underscore in front of the mnemonic character

Returns:

a new GtkCheckButton

getActive

public boolean getActive()

Returns whether the check button is active.

Returns:

whether the check button is active

getChild

public Widget getChild()

Gets the child widget of this CheckButton or NULL if CheckButton:label is set.

Returns:

the child widget of this CheckButton

getInconsistent

public boolean getInconsistent()

Returns whether the check button is in an inconsistent state.

Returns:

true if this CheckButton is currently in an inconsistent state

getLabel

public String getLabel()

Returns the label of the check button or NULL if CheckButton:child is set.

Returns:

The label this CheckButton shows next to the indicator. If no label is shown, null will be returned.

getUseUnderline

public boolean getUseUnderline()

Returns whether underlines in the label indicate mnemonics.

Returns:

The value of the Gtk.CheckButton:use-underline property. See setUseUnderline(boolean) for details on how to set a new value.

setActive

public void setActive(boolean setting)

Changes the check buttons active state.

Parameters:

setting - the new value to set

setChild

public void setChild(@Nullable
 @Nullable Widget child)

Sets the child widget of this CheckButton.

Note that by using this API, you take full responsibility for setting up the proper accessibility label and description information for this CheckButton. Most likely, you'll either set the accessibility label or description for this CheckButton explicitly, or you'll set a labelled-by or described-by relations from child to this CheckButton.

Parameters:

child - the child widget

setGroup

public void setGroup(@Nullable
 @Nullable CheckButton group)

Adds this CheckButton to the group of group.

In a group of multiple check buttons, only one button can be active at a time. The behavior of a checkbutton in a group is also commonly known as a *radio button*.

Setting the group of a check button also changes the css name of the indicator widget's CSS node to 'radio'.

Setting up groups in a cycle leads to undefined behavior.

Note that the same effect can be achieved via the Actionable API, by using the same action with parameter type and state type 's' for all buttons in the group, and giving each button its own target value.

Parameters:

group - another GtkCheckButton to form a group with

setInconsistent

public void setInconsistent(boolean inconsistent)

Sets the GtkCheckButton to inconsistent state.

You should turn off the inconsistent state again if the user checks the check button. This has to be done manually.

Parameters:

inconsistent - true if state is inconsistent

setLabel

public void setLabel(@Nullable
 @Nullable String label)

Sets the text of this CheckButton.

If Gtk.CheckButton:use-underline is true, an underscore in label is interpreted as mnemonic indicator, see setUseUnderline(boolean) for details on this behavior.

Parameters:

label - The text shown next to the indicator, or null to show no text

setUseUnderline

public void setUseUnderline(boolean setting)

Sets whether underlines in the label indicate mnemonics.

If setting is true, an underscore character in this CheckButton's label indicates a mnemonic accelerator key. This behavior is similar to Gtk.Label:use-underline.

Parameters:

setting - the new value to set

activate

protected void activate()

toggled

protected void toggled()

onActivate

public SignalConnection<CheckButton.ActivateCallback> onActivate(CheckButton.ActivateCallback handler)

Emitted to when the check button is activated.

The ::activate signal on GtkCheckButton is an action signal and emitting it causes the button to animate press then release.

Applications should never connect to this signal, but use the Gtk.CheckButton::toggled signal.

The default bindings for this signal are all forms of the ␣ and Enter keys.

Parameters:

handler - the signal handler

Returns:

a signal handler ID to keep track of the signal connection

See Also:

• CheckButton.ActivateCallback.run()

emitActivate

public void emitActivate()

Emits the "activate" signal. See onActivate(org.gnome.gtk.CheckButton.ActivateCallback).

onToggled

public SignalConnection<CheckButton.ToggledCallback> onToggled(CheckButton.ToggledCallback handler)

Emitted when the buttons's Gtk.CheckButton:active property changes.

Parameters:

handler - the signal handler

Returns:

a signal handler ID to keep track of the signal connection

See Also:

• CheckButton.ToggledCallback.run()

emitToggled

public void emitToggled()

Emits the "toggled" signal. See onToggled(org.gnome.gtk.CheckButton.ToggledCallback).

builder

public static CheckButton.Builder<? extends CheckButton.Builder> builder()

A CheckButton.Builder object constructs a CheckButton with the specified properties. Use the various set...() methods to set properties, and finish construction with CheckButton.Builder.build().