com.sun.javafx.scene.control.skin

Class TreeViewSkin<T>

java.lang.Object

javafx.scene.control.SkinBase<C>

com.sun.javafx.scene.control.skin.BehaviorSkinBase<C,B>

com.sun.javafx.scene.control.skin.VirtualContainerBase<TreeView<T>,TreeViewBehavior<T>,TreeCell<T>>

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

All Implemented Interfaces:

Skin<TreeView<T>>

public class TreeViewSkin<T>
extends VirtualContainerBase<TreeView<T>,TreeViewBehavior<T>,TreeCell<T>>

Field Summary

Fields

Modifier and Type	Field and Description
private static boolean	IS_PANNABLE
private boolean	needCellsRebuilt
private boolean	needCellsReconfigured
private MapChangeListener<java.lang.Object,java.lang.Object>	propertiesMapListener
static java.lang.String	RECREATE
private EventHandler<TreeItem.TreeModificationEvent<T>>	rootListener
private java.lang.ref.WeakReference<TreeItem<T>>	weakRoot
private WeakEventHandler<TreeItem.TreeModificationEvent<T>>	weakRootListener

Fields inherited from class com.sun.javafx.scene.control.skin.VirtualContainerBase

flow, rowCountDirty

Fields inherited from class com.sun.javafx.scene.control.skin.BehaviorSkinBase

IS_TOUCH_SUPPORTED

Constructor Summary

Constructors

Constructor and Description
TreeViewSkin(TreeView treeView)

Method Summary

Modifier and Type	Method and Description
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.
TreeCell<T>	createCell() Returns a Cell available to be used in the virtual flow.
private TreeCell<T>	createDefaultCellImpl()
protected void	executeAccessibleAction(AccessibleAction action, java.lang.Object... parameters)
int	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()
protected void	handleControlPropertyChanged(java.lang.String p) Skin subclasses will override this method to handle changes in corresponding control's properties.
protected void	layoutChildren(double x, double y, double w, double h) Called during the layout pass of the scenegraph.
private void	onFocusNextCell()
private void	onFocusPreviousCell()
private void	onMoveToFirstCell()
private void	onMoveToLastCell()
int	onScrollPageDown(boolean isFocusDriven) Function used to scroll the container down by one 'page'.
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(TreeItem<T> newRoot)
protected void	updateRowCount()

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

checkState, createVirtualFlow, getMaxCellWidth, getVirtualFlowPreferredHeight

Methods inherited from class com.sun.javafx.scene.control.skin.BehaviorSkinBase

dispose, getBehavior, registerChangeListener, unregisterChangeListener

Methods inherited from class javafx.scene.control.SkinBase

computeBaselineOffset, computeMaxHeight, computeMaxWidth, computeMinHeight, computeMinWidth, consumeMouseEvents, getChildren, getClassCssMetaData, getCssMetaData, getNode, getSkinnable, layoutInArea, layoutInArea, layoutInArea, positionInArea, positionInArea, pseudoClassStateChanged, snappedBottomInset, snappedLeftInset, snappedRightInset, snappedTopInset, snapPosition, snapSize, snapSpace

Methods inherited from class java.lang.Object

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

Field Detail

RECREATE

public static final java.lang.String RECREATE

See Also:

Constant Field Values

IS_PANNABLE

private static final boolean IS_PANNABLE

needCellsRebuilt

private boolean needCellsRebuilt

needCellsReconfigured

private boolean needCellsReconfigured

propertiesMapListener

private MapChangeListener<java.lang.Object,java.lang.Object> propertiesMapListener

rootListener

private EventHandler<TreeItem.TreeModificationEvent<T>> rootListener

weakRootListener

private WeakEventHandler<TreeItem.TreeModificationEvent<T>> weakRootListener

weakRoot

private java.lang.ref.WeakReference<TreeItem<T>> weakRoot

Constructor Detail

TreeViewSkin

public TreeViewSkin(TreeView treeView)

Method Detail

handleControlPropertyChanged

protected void handleControlPropertyChanged(java.lang.String p)

Description copied from class: BehaviorSkinBase

Skin subclasses will override this method to handle changes in corresponding control's properties.

Overrides:

handleControlPropertyChanged in class BehaviorSkinBase<TreeView<T>,TreeViewBehavior<T>>

getRoot

private TreeItem<T> getRoot()

setRoot

private void setRoot(TreeItem<T> newRoot)

getItemCount

public int getItemCount()

Description copied from class: VirtualContainerBase

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<TreeView<T>,TreeViewBehavior<T>,TreeCell<T>>

updateRowCount

protected void updateRowCount()

Specified by:

updateRowCount in class VirtualContainerBase<TreeView<T>,TreeViewBehavior<T>,TreeCell<T>>

createCell

public TreeCell<T> createCell()

Description copied from class: VirtualContainerBase

Returns a Cell available to be used in the virtual flow. This means you may return either a previously used, but now unrequired cell, or alternatively create a new Cell instance. Preference is obviously given to reusing cells whenever possible, to keep performance costs down.

Specified by:

createCell in class VirtualContainerBase<TreeView<T>,TreeViewBehavior<T>,TreeCell<T>>

createDefaultCellImpl

private TreeCell<T> createDefaultCellImpl()

computePrefWidth

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

Description copied from class: SkinBase

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 SkinBase<TreeView<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

computePrefHeight

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

Description copied from class: SkinBase

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 SkinBase<TreeView<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

layoutChildren

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

Description copied from class: SkinBase

Called during the layout pass of the scenegraph.

Overrides:

layoutChildren in class VirtualContainerBase<TreeView<T>,TreeViewBehavior<T>,TreeCell<T>>

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

public int onScrollPageDown(boolean isFocusDriven)

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

onScrollPageUp

public int onScrollPageUp(boolean isFocusDriven)

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

queryAccessibleAttribute

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

Overrides:

queryAccessibleAttribute in class SkinBase<TreeView<T>>

See Also:

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

executeAccessibleAction

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

Overrides:

executeAccessibleAction in class SkinBase<TreeView<T>>

See Also:

Node.executeAccessibleAction(javafx.scene.AccessibleAction, java.lang.Object...)