javafx.scene.control.skin

Class TreeViewSkin<T>

java.lang.Object

<any>

javafx.scene.control.skin.VirtualContainerBase<<any>,<any>>

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

public class TreeViewSkin<T>
extends VirtualContainerBase<<any>,<any>>

Default skin implementation for the TreeView control.

Since:

9

See Also:

TreeView

Field Summary

Fields

Modifier and Type	Field and Description
private <any>	behavior
private VirtualFlow<<any>>	flow * Private fields * *
private static boolean	IS_PANNABLE * Static fields * *
private <any>	propertiesMapListener * Listeners * *
private <any>	rootListener
private java.lang.ref.WeakReference<<any>>	weakRoot
private <any>	weakRootListener

Constructor Summary

Constructors

Constructor and Description
TreeViewSkin(TreeView 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)
protected double	computePrefWidth(double height, double topInset, double rightInset, double bottomInset, double leftInset)
private <any>	createCell(VirtualFlow<<any>> flow) * Private implementation * *
private <any>	createDefaultCellImpl()
void	dispose()
protected void	executeAccessibleAction(AccessibleAction action, java.lang.Object... parameters)
protected int	getItemCount() Returns the total number of items in this container, including those that are currently hidden because they are out of view.
private <any>	getRoot()
protected void	layoutChildren(double x, double y, double w, double h)
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 java.lang.Object	queryAccessibleAttribute(AccessibleAttribute attribute, java.lang.Object... parameters)
private void	setRoot(<any> newRoot)
protected void	updateItemCount() This method is called when it is possible that the item count has changed (i.e.

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

checkState, createVirtualFlow, getMaxCellWidth, getVirtualFlow, getVirtualFlowPreferredHeight, markItemCountDirty, requestRebuildCells

Methods inherited from class java.lang.Object

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

Field Detail

IS_PANNABLE

private static final boolean IS_PANNABLE

* Static fields * *

flow

private final VirtualFlow<<any>> flow

* Private fields * *

weakRoot

private java.lang.ref.WeakReference<<any>> weakRoot

behavior

private final <any> behavior

propertiesMapListener

private <any> propertiesMapListener

* Listeners * *

rootListener

private <any> rootListener

weakRootListener

private <any> weakRootListener

Constructor Detail

TreeViewSkin

public TreeViewSkin(TreeView 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 - The control that this skin should be installed onto.

Method Detail

dispose

public void dispose()

computePrefWidth

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

computePrefHeight

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

layoutChildren

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

Overrides:

layoutChildren in class VirtualContainerBase<<any>,<any>>

queryAccessibleAttribute

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

executeAccessibleAction

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

createCell

private <any> createCell(VirtualFlow<<any>> flow)

* Private implementation * *

getRoot

private <any> getRoot()

setRoot

private void setRoot(<any> newRoot)

getItemCount

protected int getItemCount()

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

Specified by:

getItemCount in class VirtualContainerBase<<any>,<any>>

Returns:

the total number of items in this container

updateItemCount

protected void 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 VirtualContainerBase.getItemCount() method.

Specified by:

updateItemCount in class VirtualContainerBase<<any>,<any>>

createDefaultCellImpl

private <any> createDefaultCellImpl()

onFocusPreviousCell

private void onFocusPreviousCell()

onFocusNextCell

private void onFocusNextCell()

onSelectPreviousCell

private void onSelectPreviousCell()

onSelectNextCell

private void onSelectNextCell()

onMoveToFirstCell

private void onMoveToFirstCell()

onMoveToLastCell

private void onMoveToLastCell()

onScrollPageDown

private int onScrollPageDown(boolean isFocusDriven)

Function used to scroll the container down by one 'page'.

onScrollPageUp

private int onScrollPageUp(boolean isFocusDriven)

Function used to scroll the container up by one 'page'.