Module javafx.controls

Package javafx.scene.control.skin

Class ComboBoxListViewSkin<T>

java.lang.Object

javafx.scene.control.SkinBase<ComboBoxBase<T>>

javafx.scene.control.skin.ComboBoxBaseSkin<T>

javafx.scene.control.skin.ComboBoxPopupControl<T>

javafx.scene.control.skin.ComboBoxListViewSkin<T>

All Implemented Interfaces:

Skin<T>

public class ComboBoxListViewSkin<T>
extends ComboBoxPopupControl<T>

Default skin implementation for the ComboBox control.

Since:

9

See Also:

ComboBox

Property Summary

Properties

Type	Property	Description
BooleanProperty	hideOnClick	By default this skin hides the popup whenever the ListView is clicked in.

Constructor Summary

Constructors

Constructor	Description
ComboBoxListViewSkin(ComboBox<T> control)	Creates a new ComboBoxListViewSkin instance, installing the necessary child nodes into the Control children list, as well as the necessary input mappings for handling key, mouse, etc events.

Method Summary

Modifier and Type	Method	Description
protected double	computeMaxHeight(double width, double topInset, double rightInset, double bottomInset, double leftInset)	Computes the maximum allowable height of the Skin, based on the provided width.
protected double	computeMaxWidth(double height, double topInset, double rightInset, double bottomInset, double leftInset)	Computes the maximum allowable width of the Skin, based on the provided height.
protected double	computeMinHeight(double width, double topInset, double rightInset, double bottomInset, double leftInset)	Computes the minimum allowable height of the Skin, based on the provided width.
protected double	computeMinWidth(double height, double topInset, double rightInset, double bottomInset, double leftInset)	Computes the minimum allowable width of the Skin, based on the provided height.
protected double	computePrefHeight(double width, double topInset, double rightInset, double bottomInset, double leftInset)	Calculates the preferred height of this SkinBase.
protected double	computePrefWidth(double height, double topInset, double rightInset, double bottomInset, double leftInset)	Calculates the preferred width of this SkinBase.
void	dispose()	Called by a Skinnable when the Skin is replaced on the Skinnable.
protected StringConverter<T>	getConverter()	Subclasses are responsible for getting the converter.
Node	getDisplayNode()	This method should return a Node that will be positioned within the ComboBox 'button' area.
protected TextField	getEditor()	Subclasses are responsible for getting the editor.
Node	getPopupContent()	This method should return the Node that will be displayed when the user clicks on the ComboBox 'button' area.
BooleanProperty	hideOnClickProperty()	By default this skin hides the popup whenever the ListView is clicked in.
boolean	isHideOnClick()	Gets the value of the property hideOnClick.
protected void	layoutChildren(double x, double y, double w, double h)	Called during the layout pass of the scenegraph.
Object	queryAccessibleAttribute(AccessibleAttribute attribute, Object... parameters)	This method is called by the assistive technology to request the value for an attribute.
void	setHideOnClick(boolean value)	Sets the value of the property hideOnClick.

Methods inherited from class javafx.scene.control.skin.ComboBoxBaseSkin

computeBaselineOffset

Methods inherited from class javafx.scene.control.skin.ComboBoxPopupControl

hide, show

Methods inherited from class java.lang.Object

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

Methods inherited from class javafx.scene.control.SkinBase

consumeMouseEvents, executeAccessibleAction, getChildren, getClassCssMetaData, getCssMetaData, getNode, getSkinnable, layoutInArea, layoutInArea, layoutInArea, positionInArea, positionInArea, pseudoClassStateChanged, registerChangeListener, snappedBottomInset, snappedLeftInset, snappedRightInset, snappedTopInset, snapPosition, snapPositionX, snapPositionY, snapSize, snapSizeX, snapSizeY, snapSpace, snapSpaceX, snapSpaceY, unregisterChangeListeners

Property Detail

hideOnClick

public final BooleanProperty hideOnClickProperty

By default this skin hides the popup whenever the ListView is clicked in. By setting hideOnClick to false, the popup will not be hidden when the ListView is clicked in. This is beneficial in some scenarios (for example, when the ListView cells have checkboxes).

See Also:

isHideOnClick(), setHideOnClick(boolean)

Constructor Detail

ComboBoxListViewSkin

public ComboBoxListViewSkin(ComboBox<T> control)

Creates a new ComboBoxListViewSkin instance, installing the necessary child nodes into the Control children list, as well as the necessary input mappings for handling key, mouse, etc events.

Parameters:

control - The control that this skin should be installed onto.

Method Detail

hideOnClickProperty

public final BooleanProperty hideOnClickProperty()

By default this skin hides the popup whenever the ListView is clicked in. By setting hideOnClick to false, the popup will not be hidden when the ListView is clicked in. This is beneficial in some scenarios (for example, when the ListView cells have checkboxes).

See Also:

isHideOnClick(), setHideOnClick(boolean)

isHideOnClick

public final boolean isHideOnClick()

Gets the value of the property hideOnClick.

Property description:

By default this skin hides the popup whenever the ListView is clicked in. By setting hideOnClick to false, the popup will not be hidden when the ListView is clicked in. This is beneficial in some scenarios (for example, when the ListView cells have checkboxes).

setHideOnClick

public final void setHideOnClick(boolean value)

Sets the value of the property hideOnClick.

Property description:

By default this skin hides the popup whenever the ListView is clicked in. By setting hideOnClick to false, the popup will not be hidden when the ListView is clicked in. This is beneficial in some scenarios (for example, when the ListView cells have checkboxes).

dispose

public void dispose()

Called by a Skinnable when the Skin is replaced on the Skinnable. This method allows a Skin to implement any logic necessary to clean up itself after the Skin is no longer needed. It may be used to release native resources. The methods Skin.getSkinnable() and Skin.getNode() should return null following a call to dispose. Calling dispose twice has no effect.

Specified by:

dispose in interface Skin<T>

Overrides:

dispose in class SkinBase<ComboBoxBase<T>>

getEditor

protected TextField getEditor()

Subclasses are responsible for getting the editor. This will be removed in FX 9 when the editor property is moved up to ComboBoxBase with JDK-8130354 Note: ComboBoxListViewSkin should return null if editable is false, even if the ComboBox does have an editor set.

Specified by:

getEditor in class ComboBoxPopupControl<T>

Returns:

the editor

getConverter

protected StringConverter<T> getConverter()

Subclasses are responsible for getting the converter. This will be removed in FX 9 when the converter property is moved up to ComboBoxBase with JDK-8130354.

Specified by:

getConverter in class ComboBoxPopupControl<T>

Returns:

the string converter

getDisplayNode

public Node getDisplayNode()

This method should return a Node that will be positioned within the ComboBox 'button' area.

Specified by:

getDisplayNode in class ComboBoxBaseSkin<T>

Returns:

the node that will be positioned within the ComboBox 'button' area

getPopupContent

public Node getPopupContent()

This method should return the Node that will be displayed when the user clicks on the ComboBox 'button' area.

Specified by:

getPopupContent in class ComboBoxPopupControl<T>

Returns:

the Node that will be displayed when the user clicks on the ComboBox 'button' area

computeMinWidth

protected double computeMinWidth(double height,
                                 double topInset,
                                 double rightInset,
                                 double bottomInset,
                                 double leftInset)

Computes the minimum allowable width of the Skin, based on the provided height.

Overrides:

computeMinWidth in class SkinBase<ComboBoxBase<T>>

Parameters:

height - The height of the Skin, in case this value might dictate the minimum width.

topInset - the pixel snapped top inset

rightInset - the pixel snapped right inset

bottomInset - the pixel snapped bottom inset

leftInset - the pixel snapped left inset

Returns:

A double representing the minimum width of this Skin.

computePrefWidth

protected double computePrefWidth(double height,
                                  double topInset,
                                  double rightInset,
                                  double bottomInset,
                                  double leftInset)

Calculates the preferred width of this SkinBase. The default implementation calculates this width as the width of the area occupied by its managed children when they are positioned at their current positions at their preferred widths.

Overrides:

computePrefWidth in class ComboBoxBaseSkin<T>

Parameters:

height - the height that should be used if preferred width depends on it

topInset - the pixel snapped top inset

rightInset - the pixel snapped right inset

bottomInset - the pixel snapped bottom inset

leftInset - the pixel snapped left inset

Returns:

the calculated preferred width

computeMaxWidth

protected double computeMaxWidth(double height,
                                 double topInset,
                                 double rightInset,
                                 double bottomInset,
                                 double leftInset)

Computes the maximum allowable width of the Skin, based on the provided height.

Overrides:

computeMaxWidth in class ComboBoxBaseSkin<T>

Parameters:

height - The height of the Skin, in case this value might dictate the maximum width.

topInset - the pixel snapped top inset

rightInset - the pixel snapped right inset

bottomInset - the pixel snapped bottom inset

leftInset - the pixel snapped left inset

Returns:

A double representing the maximum width of this Skin.

computeMinHeight

protected double computeMinHeight(double width,
                                  double topInset,
                                  double rightInset,
                                  double bottomInset,
                                  double leftInset)

Computes the minimum allowable height of the Skin, based on the provided width.

Overrides:

computeMinHeight in class SkinBase<ComboBoxBase<T>>

Parameters:

width - The width of the Skin, in case this value might dictate the minimum height.

topInset - the pixel snapped top inset

rightInset - the pixel snapped right inset

bottomInset - the pixel snapped bottom inset

leftInset - the pixel snapped left inset

Returns:

A double representing the minimum height of this Skin.

computePrefHeight

protected double computePrefHeight(double width,
                                   double topInset,
                                   double rightInset,
                                   double bottomInset,
                                   double leftInset)

Calculates the preferred height of this SkinBase. The default implementation calculates this height as the height of the area occupied by its managed children when they are positioned at their current positions at their preferred heights.

Overrides:

computePrefHeight in class ComboBoxBaseSkin<T>

Parameters:

width - the width that should be used if preferred height depends on it

topInset - the pixel snapped top inset

rightInset - the pixel snapped right inset

bottomInset - the pixel snapped bottom inset

leftInset - the pixel snapped left inset

Returns:

the calculated preferred height

computeMaxHeight

protected double computeMaxHeight(double width,
                                  double topInset,
                                  double rightInset,
                                  double bottomInset,
                                  double leftInset)

Computes the maximum allowable height of the Skin, based on the provided width.

Overrides:

computeMaxHeight in class ComboBoxBaseSkin<T>

Parameters:

width - The width of the Skin, in case this value might dictate the maximum height.

topInset - the pixel snapped top inset

rightInset - the pixel snapped right inset

bottomInset - the pixel snapped bottom inset

leftInset - the pixel snapped left inset

Returns:

A double representing the maximum height of this Skin.

layoutChildren

protected void layoutChildren(double x,
                              double y,
                              double w,
                              double h)

Called during the layout pass of the scenegraph.

Overrides:

layoutChildren in class ComboBoxBaseSkin<T>

Parameters:

x - the x position

y - the y position

w - the width

h - the height

queryAccessibleAttribute

public Object queryAccessibleAttribute(AccessibleAttribute attribute,
                                       Object... parameters)

This method is called by the assistive technology to request the value for an attribute.

This method is commonly overridden by subclasses to implement attributes that are required for a specific role.
If a particular attribute is not handled, the superclass implementation must be called.

Overrides:

queryAccessibleAttribute in class SkinBase<ComboBoxBase<T>>

Parameters:

attribute - the requested attribute

parameters - optional list of parameters

Returns:

the value for the requested attribute

See Also:

AccessibleAttribute, Node.queryAccessibleAttribute(javafx.scene.AccessibleAttribute, java.lang.Object...)