javafx.scene.control

Class TreeTableView.TreeTableViewFocusModel<S>

java.lang.Object

javafx.scene.control.FocusModel<T>

javafx.scene.control.TableFocusModel<TreeItem<S>,TreeTableColumn<S,?>>

javafx.scene.control.TreeTableView.TreeTableViewFocusModel<S>

Enclosing class:

TreeTableView<S>

public static class TreeTableView.TreeTableViewFocusModel<S>
extends TableFocusModel<TreeItem<S>,TreeTableColumn<S,?>>

A FocusModel with additional functionality to support the requirements of a TableView control.

Since:

JavaFX 8.0

See Also:

TableView

Property Summary

Type	Property and Description
ReadOnlyObjectProperty<TreeTablePosition<S,?>>	focusedCell The position of the current item in the TableView which has the focus.

Properties inherited from class javafx.scene.control.FocusModel

focusedIndex, focusedItem

Constructor Summary

Constructors

Constructor and Description
TreeTableViewFocusModel(TreeTableView<S> treeTableView) Creates a default TableViewFocusModel instance that will be used to manage focus of the provided TableView control.

Method Summary

Modifier and Type	Method and Description
void	focus(int index) Causes the item at the given index to receive the focus.
void	focus(int row, TreeTableColumn<S,?> column) Causes the item at the given index to receive the focus.
void	focus(TreeTablePosition<S,?> pos) Convenience method for setting focus on a particular row or cell using a TablePosition.
void	focusAboveCell() Attempts to move focus to the cell above the currently focused cell.
void	focusBelowCell() Attempts to move focus to the cell below the currently focused cell.
ReadOnlyObjectProperty<TreeTablePosition<S,?>>	focusedCellProperty() The position of the current item in the TableView which has the focus.
void	focusLeftCell() Attempts to move focus to the cell to the left of the currently focused cell.
void	focusNext() Attempts to give focus to the row after to the currently focused row.
void	focusPrevious() Attempts to give focus to the row previous to the currently focused row.
void	focusRightCell() Attempts to move focus to the cell to the right of the the currently focused cell.
TreeTablePosition<S,?>	getFocusedCell() Gets the value of the property focusedCell.
protected int	getItemCount() Returns the number of items in the data model that underpins the control.
protected TreeItem<S>	getModelItem(int index) Returns the item at the given index.
boolean	isFocused(int row, TreeTableColumn<S,?> column) Tests whether the row / cell at the given location currently has the focus within the TableView.

Methods inherited from class javafx.scene.control.FocusModel

focusedIndexProperty, focusedItemProperty, getFocusedIndex, getFocusedItem, isFocused

Methods inherited from class java.lang.Object

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

Property Detail

focusedCell

public final ReadOnlyObjectProperty<TreeTablePosition<S,?>> focusedCellProperty

The position of the current item in the TableView which has the focus.

See Also:

getFocusedCell()

Constructor Detail

TreeTableViewFocusModel

public TreeTableViewFocusModel(TreeTableView<S> treeTableView)

Creates a default TableViewFocusModel instance that will be used to manage focus of the provided TableView control.

Parameters:

treeTableView - The tableView upon which this focus model operates.

Throws:

NullPointerException - The TableView argument can not be null.

Method Detail

getItemCount

protected int getItemCount()

Returns the number of items in the data model that underpins the control. An example would be that a ListView focus model would likely return listView.getItems().size(). The valid range of focusable indices is between 0 and whatever is returned by this method.

Specified by:

getItemCount in class FocusModel<TreeItem<S>>

getModelItem

protected TreeItem<S> getModelItem(int index)

Returns the item at the given index. An example using ListView would be listView.getItems().get(index).

Specified by:

getModelItem in class FocusModel<TreeItem<S>>

Parameters:

index - The index of the item that is requested from the underlying data model.

Returns:

Returns null if the index is out of bounds, or an element of type T that is related to the given index.

focusedCellProperty

public final ReadOnlyObjectProperty<TreeTablePosition<S,?>> focusedCellProperty()

The position of the current item in the TableView which has the focus.

See Also:

getFocusedCell()

getFocusedCell

public final TreeTablePosition<S,?> getFocusedCell()

Gets the value of the property focusedCell.

Property description:

The position of the current item in the TableView which has the focus.

focus

public void focus(int row,
                  TreeTableColumn<S,?> column)

Causes the item at the given index to receive the focus.

Specified by:

focus in class TableFocusModel<TreeItem<S>,TreeTableColumn<S,?>>

Parameters:

row - The row index of the item to give focus to.

column - The column of the item to give focus to. Can be null.

focus

public void focus(TreeTablePosition<S,?> pos)

Convenience method for setting focus on a particular row or cell using a TablePosition.

Parameters:

pos - The table position where focus should be set.

isFocused

public boolean isFocused(int row,
                         TreeTableColumn<S,?> column)

Tests whether the row / cell at the given location currently has the focus within the TableView.

Specified by:

isFocused in class TableFocusModel<TreeItem<S>,TreeTableColumn<S,?>>

focus

public void focus(int index)

Causes the item at the given index to receive the focus. This does not cause the current selection to change. Updates the focusedItem and focusedIndex properties such that focusedIndex = -1 unless

0 <= index < model size< code>

.

Overrides:

focus in class FocusModel<TreeItem<S>>

Parameters:

index - The index of the item to get focus.

focusAboveCell

public void focusAboveCell()

Attempts to move focus to the cell above the currently focused cell.

Specified by:

focusAboveCell in class TableFocusModel<TreeItem<S>,TreeTableColumn<S,?>>

focusBelowCell

public void focusBelowCell()

Attempts to move focus to the cell below the currently focused cell.

Specified by:

focusBelowCell in class TableFocusModel<TreeItem<S>,TreeTableColumn<S,?>>

focusLeftCell

public void focusLeftCell()

Attempts to move focus to the cell to the left of the currently focused cell.

Specified by:

focusLeftCell in class TableFocusModel<TreeItem<S>,TreeTableColumn<S,?>>

focusRightCell

public void focusRightCell()

Attempts to move focus to the cell to the right of the the currently focused cell.

Specified by:

focusRightCell in class TableFocusModel<TreeItem<S>,TreeTableColumn<S,?>>

focusPrevious

public void focusPrevious()

Attempts to give focus to the row previous to the currently focused row. If the current focus owner is the first row, or is -1 (representing that there is no current focus owner), calling this method will have no result.

Overrides:

focusPrevious in class FocusModel<TreeItem<S>>

focusNext

public void focusNext()

Attempts to give focus to the row after to the currently focused row. If the current focus owner is the last row, calling this method will have no result.

Overrides:

focusNext in class FocusModel<TreeItem<S>>