JavaFX 27 · javafx.scene.control.skin.TreeViewSkin · APIdia, the JavaDoc alternative

Modifier and Type	Field and Description
private final TreeViewBehavior<T>	behavior
private final VirtualFlow<TreeCell<T>>	flow Hides javafx.scene.control.skin.VirtualContainerBase.flow.
private static final boolean	IS_PANNABLE
private MapChangeListener<Object, Object>	propertiesMapListener
private EventHandler<TreeItem.TreeModificationEvent<T>>	rootListener
private WeakReference<TreeItem<T>>	weakRoot
private WeakEventHandler<TreeItem.TreeModificationEvent<T>>	weakRootListener

Access	Constructor and Description
public	TreeViewSkin(final TreeView<T> The control that this skin should be installed onto. control) Creates a new TreeViewSkin 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 and Description
protected double	computePrefHeight(double width, double topInset, double rightInset, double bottomInset, double leftInset) Overrides javafx.scene.control.SkinBase.computePrefHeight. Calculates the preferred height of this `SkinBase`.
protected double	computePrefWidth(double height, double topInset, double rightInset, double bottomInset, double leftInset) Overrides javafx.scene.control.SkinBase.computePrefWidth. Calculates the preferred width of this `SkinBase`.
private TreeCell<T>	createCell(VirtualFlow<TreeCell<T>> flow)
private TreeCell<T>	createDefaultCellImpl()
public void	dispose() Overrides javafx.scene.control.skin.VirtualContainerBase.dispose. Implements javafx.scene.control.Skin.dispose. Called when a previously installed skin is about to be removed from its associated control.
protected void	executeAccessibleAction(AccessibleAction action, Object... parameters) Overrides javafx.scene.control.SkinBase.executeAccessibleAction. This method is called by the assistive technology to request the action indicated by the argument should be executed.
protected int	getItemCount() Implements abstract javafx.scene.control.skin.VirtualContainerBase.getItemCount. Returns the total number of items in this container, including those that are currently hidden because they are out of view.
private TreeItem<T>	getRoot()
private void	horizontalUnitScroll(boolean right)
protected void	layoutChildren(final double x, final double y, final double w, final double h) Overrides javafx.scene.control.skin.VirtualContainerBase.layoutChildren. Called during the layout pass of the scenegraph.
private void	onFocusNextCell()
private void	onFocusPreviousCell()
private void	onMoveToFirstCell()
private void	onMoveToLastCell()
private int	onScrollPageDown(boolean isFocusDriven) Function used to scroll the container down by one 'page'.
private int	onScrollPageUp(boolean isFocusDriven) Function used to scroll the container up by one 'page'.
private void	onSelectNextCell()
private void	onSelectPreviousCell()
protected Object	queryAccessibleAttribute(AccessibleAttribute attribute, Object... parameters) Overrides javafx.scene.control.SkinBase.queryAccessibleAttribute. This method is called by the assistive technology to request the value for an attribute.
private void	setRoot(TreeItem<T> newRoot)
protected void	updateItemCount() Implements abstract javafx.scene.control.skin.VirtualContainerBase.updateItemCount. This method is called when it is possible that the item count has changed (i.e. scrolling has occurred, the control has resized, etc).
private void	verticalUnitScroll(boolean down)

Inherited from javafx.scene.control.skin.VirtualContainerBase:: checkState createVirtualFlow getMaxCellWidth getVirtualFlow getVirtualFlowPreferredHeight markItemCountDirty requestRebuildCells requestRecreateCells

behavior	back to summary
private final TreeViewBehavior<T> behavior

flow	back to summary
private final VirtualFlow<TreeCell<T>> flow Hides javafx.scene.control.skin.VirtualContainerBase.flow.

IS_PANNABLE	back to summary
private static final boolean IS_PANNABLE

propertiesMapListener	back to summary
private MapChangeListener<Object, Object> propertiesMapListener

rootListener	back to summary
private EventHandler<TreeItem.TreeModificationEvent<T>> rootListener

weakRoot	back to summary
private WeakReference<TreeItem<T>> weakRoot

weakRootListener	back to summary
private WeakEventHandler<TreeItem.TreeModificationEvent<T>> weakRootListener

TreeViewSkin	back to summary
public TreeViewSkin(final TreeView<T> control) Creates a new TreeViewSkin 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:TreeView<T> The control that this skin should be installed onto.

Method Detail

computePrefHeight back to summary

computePrefHeight	back to summary
protected double computePrefHeight(double width, double topInset, double rightInset, double bottomInset, double leftInset) Overrides javafx.scene.control.SkinBase.computePrefHeight. Doc from javafx.scene.control.SkinBase.computePrefHeight. 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. Annotations @Override

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

Overrides javafx.scene.control.SkinBase.computePrefHeight.

Doc from javafx.scene.control.SkinBase.computePrefHeight.

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.

Annotations

@Override

computePrefWidth back to summary

computePrefWidth	back to summary
protected double computePrefWidth(double height, double topInset, double rightInset, double bottomInset, double leftInset) Overrides javafx.scene.control.SkinBase.computePrefWidth. Doc from javafx.scene.control.SkinBase.computePrefWidth. 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. Annotations @Override

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

Overrides javafx.scene.control.SkinBase.computePrefWidth.

Doc from javafx.scene.control.SkinBase.computePrefWidth.

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.

Annotations

@Override

createCell	back to summary
private TreeCell<T> createCell(VirtualFlow<TreeCell<T>> flow)

createDefaultCellImpl	back to summary
private TreeCell<T> createDefaultCellImpl()

dispose back to summary

dispose	back to summary
public void dispose() Overrides javafx.scene.control.skin.VirtualContainerBase.dispose. Implements javafx.scene.control.Skin.dispose. Doc from javafx.scene.control.skin.VirtualContainerBase.dispose. Called when a previously installed skin is about to be removed from its associated control. This allows the skin to do clean up, like removing listeners and bindings, and undo any changes to the control's properties. After this method completes, `getSkinnable()` and `getNode()` should return `null`. Calling `dispose()` more than once has no effect. Overridden to remove EventHandler. Annotations @Override

public void dispose()

Overrides javafx.scene.control.skin.VirtualContainerBase.dispose.

Implements javafx.scene.control.Skin.dispose.

Doc from javafx.scene.control.skin.VirtualContainerBase.dispose.

Called when a previously installed skin is about to be removed from its associated control. This allows the skin to do clean up, like removing listeners and bindings, and undo any changes to the control's properties. After this method completes, getSkinnable() and getNode() should return null.

Calling dispose() more than once has no effect.

Overridden to remove EventHandler.

Annotations

@Override

executeAccessibleAction	back to summary
protected void executeAccessibleAction(AccessibleAction action, Object... parameters) Overrides javafx.scene.control.SkinBase.executeAccessibleAction. Doc from javafx.scene.control.SkinBase.executeAccessibleAction. This method is called by the assistive technology to request the action indicated by the argument should be executed. This method is commonly overridden by subclasses to implement action that are required for a specific role. If a particular action is not handled, the superclass implementation must be called. Annotations @Override

executeAccessibleAction

back to summary

protected void executeAccessibleAction(AccessibleAction action, Object... parameters)

Overrides javafx.scene.control.SkinBase.executeAccessibleAction.

Doc from javafx.scene.control.SkinBase.executeAccessibleAction.

This method is called by the assistive technology to request the action indicated by the argument should be executed.

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

Annotations

@Override

getItemCount	back to summary
protected int getItemCount() Implements abstract javafx.scene.control.skin.VirtualContainerBase.getItemCount. Doc from javafx.scene.control.skin.VirtualContainerBase.getItemCount. Returns the total number of items in this container, including those that are currently hidden because they are out of view. Annotations @Override

getItemCount

back to summary

protected int getItemCount()

Implements abstract javafx.scene.control.skin.VirtualContainerBase.getItemCount.

Doc from javafx.scene.control.skin.VirtualContainerBase.getItemCount.

Returns the total number of items in this container, including those that are currently hidden because they are out of view.

Annotations

@Override

getRoot	back to summary
private TreeItem<T> getRoot()

horizontalUnitScroll	back to summary
private void horizontalUnitScroll(boolean right)

layoutChildren	back to summary
protected void layoutChildren(final double x, final double y, final double w, final double h) Overrides javafx.scene.control.skin.VirtualContainerBase.layoutChildren. Doc from javafx.scene.control.skin.VirtualContainerBase.layoutChildren. Called during the layout pass of the scenegraph. Annotations @Override

layoutChildren

back to summary

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

Overrides javafx.scene.control.skin.VirtualContainerBase.layoutChildren.

Doc from javafx.scene.control.skin.VirtualContainerBase.layoutChildren.

Called during the layout pass of the scenegraph.

Annotations

@Override

onFocusNextCell	back to summary
private void onFocusNextCell()

onFocusPreviousCell	back to summary
private void onFocusPreviousCell()

onMoveToFirstCell	back to summary
private void onMoveToFirstCell()

onMoveToLastCell	back to summary
private void onMoveToLastCell()

onScrollPageDown	back to summary
private int onScrollPageDown(boolean isFocusDriven) Function used to scroll the container down by one 'page'.

onScrollPageUp	back to summary
private int onScrollPageUp(boolean isFocusDriven) Function used to scroll the container up by one 'page'.

onSelectNextCell	back to summary
private void onSelectNextCell()

onSelectPreviousCell	back to summary
private void onSelectPreviousCell()

queryAccessibleAttribute	back to summary
protected Object queryAccessibleAttribute(AccessibleAttribute attribute, Object... parameters) Overrides javafx.scene.control.SkinBase.queryAccessibleAttribute. Doc from javafx.scene.control.SkinBase.queryAccessibleAttribute. 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. Annotations @Override

queryAccessibleAttribute

back to summary

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

Overrides javafx.scene.control.SkinBase.queryAccessibleAttribute.

Doc from javafx.scene.control.SkinBase.queryAccessibleAttribute.

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.

Annotations

@Override

setRoot	back to summary
private void setRoot(TreeItem<T> newRoot)

updateItemCount back to summary

updateItemCount	back to summary
protected void updateItemCount() Implements abstract javafx.scene.control.skin.VirtualContainerBase.updateItemCount. Doc from javafx.scene.control.skin.VirtualContainerBase.updateItemCount. This method is called when it is possible that the item count has changed (i.e. scrolling has occurred, the control has resized, etc). This method should recalculate the item count and store that for future use by the `getItemCount` method. Annotations @Override

protected void updateItemCount()

Implements abstract javafx.scene.control.skin.VirtualContainerBase.updateItemCount.

Doc from javafx.scene.control.skin.VirtualContainerBase.updateItemCount.

This method is called when it is possible that the item count has changed (i.e. scrolling has occurred, the control has resized, etc). This method should recalculate the item count and store that for future use by the getItemCount method.

Annotations

@Override

verticalUnitScroll	back to summary
private void verticalUnitScroll(boolean down)

public Class TreeViewSkin<T>

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail