Module javafx.controls

Package javafx.scene.control.skin

Class TreeCellSkin<T>

java.lang.Object

javafx.scene.control.SkinBase<C>

javafx.scene.control.skin.LabeledSkinBase<C>

javafx.scene.control.skin.CellSkinBase<TreeCell<T>>

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

All Implemented Interfaces:

Skin<TreeCell<T>>

public class TreeCellSkin<T>
extends CellSkinBase<TreeCell<T>>

Default skin implementation for the TreeCell control.

Since:

9

See Also:

TreeCell

Property Summary

Properties

Type	Property	Description
DoubleProperty	indent	The amount of space to multiply by the treeItem.level to get the left margin for this tree cell.

Properties inherited from class javafx.scene.control.skin.CellSkinBase

cellSize

Constructor Summary

Constructors

Constructor	Description
TreeCellSkin(TreeCell<T> control)	Creates a new TreeCellSkin 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	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	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.
static List<CssMetaData<? extends Styleable,?>>	getClassCssMetaData()	Returns the CssMetaData associated with this class, which may include the CssMetaData of its superclasses.
List<CssMetaData<? extends Styleable,?>>	getCssMetaData()	This method should delegate to Node.getClassCssMetaData() so that a Node's CssMetaData can be accessed without the need for reflection.
double	getIndent()	Gets the value of the property indent.
DoubleProperty	indentProperty()	The amount of space to multiply by the treeItem.level to get the left margin for this tree cell.
protected void	layoutChildren(double x, double y, double w, double h)	The Layout algorithm works like this: - Get the labeled w/h, graphic w/h, text w/h - Compute content w/h based on graphicVPos, graphicHPos, graphicTextGap, and graphic w/h and text w/h - (Note that the text content has been pre-truncated where necessary) - compute content x/y based on content w/h and labeled w/h and the labeled's hpos and vpos - position the graphic and text
void	setIndent(double value)	Sets the value of the property indent.
protected void	updateChildren()	Updates the children managed by LabeledSkinBase, which can be the Labeled graphic and/or a Text node.

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

cellSizeProperty, getCellSize

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

computeBaselineOffset, computeMaxWidth, computeMinWidth, layoutLabelInArea, layoutLabelInArea, queryAccessibleAttribute

Methods inherited from class javafx.scene.control.SkinBase

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

Methods inherited from class java.lang.Object

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

Property Details

indent

public final DoubleProperty indentProperty

The amount of space to multiply by the treeItem.level to get the left margin for this tree cell. This is settable from CSS

See Also:

getIndent(), setIndent(double)

Constructor Details

TreeCellSkin

public TreeCellSkin(TreeCell<T> control)

Creates a new TreeCellSkin 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 Details

setIndent

public final void setIndent(double value)

Sets the value of the property indent.

Property description:

The amount of space to multiply by the treeItem.level to get the left margin for this tree cell. This is settable from CSS

getIndent

public final double getIndent()

Gets the value of the property indent.

Property description:

The amount of space to multiply by the treeItem.level to get the left margin for this tree cell. This is settable from CSS

indentProperty

public final DoubleProperty indentProperty()

The amount of space to multiply by the treeItem.level to get the left margin for this tree cell. This is settable from CSS

See Also:

getIndent(), setIndent(double)

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<TreeCell<T>>

updateChildren

protected void updateChildren()

Updates the children managed by LabeledSkinBase, which can be the Labeled graphic and/or a Text node. Only those nodes which actually must be used are used. For example, with a ContentDisplay of GRAPHIC_ONLY the text node is not added, and with a ContentDisplay of TEXT_ONLY, the graphic is not added.

Overrides:

updateChildren in class LabeledSkinBase<TreeCell<T>>

layoutChildren

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

The Layout algorithm works like this: - Get the labeled w/h, graphic w/h, text w/h - Compute content w/h based on graphicVPos, graphicHPos, graphicTextGap, and graphic w/h and text w/h - (Note that the text content has been pre-truncated where necessary) - compute content x/y based on content w/h and labeled w/h and the labeled's hpos and vpos - position the graphic and text

Overrides:

layoutChildren in class LabeledSkinBase<TreeCell<T>>

Parameters:

x - the x position

y - the y position

w - the width

h - the height

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 LabeledSkinBase<TreeCell<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 LabeledSkinBase<TreeCell<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 LabeledSkinBase<TreeCell<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.

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 LabeledSkinBase<TreeCell<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

getClassCssMetaData

public static List<CssMetaData<? extends Styleable,?>> getClassCssMetaData()

Returns the CssMetaData associated with this class, which may include the CssMetaData of its superclasses.

Returns:

the CssMetaData associated with this class, which may include the CssMetaData of its superclasses

getCssMetaData

public List<CssMetaData<? extends Styleable,?>> getCssMetaData()

This method should delegate to Node.getClassCssMetaData() so that a Node's CssMetaData can be accessed without the need for reflection.

Overrides:

getCssMetaData in class CellSkinBase<TreeCell<T>>

Returns:

The CssMetaData associated with this node, which may include the CssMetaData of its superclasses.