javafx.scene.control.skin

Class NestedTableColumnHeader

java.lang.Object

Region

javafx.scene.control.skin.TableColumnHeader

javafx.scene.control.skin.NestedTableColumnHeader

public class NestedTableColumnHeader
extends TableColumnHeader

This class is used to construct the header of a TableView. We take the approach that every TableView header is nested - even if it isn't. This allows for us to use the same code for building a single row of TableColumns as we would with a heavily nested sequences of TableColumns. Because of this, the TableHeaderRow class consists of just one instance of a NestedTableColumnHeader.

Since:

9

See Also:

TableColumnHeader, TableHeaderRow, TableColumnBase

Property Summary

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

tableColumnProperty

Field Summary

Fields

Modifier and Type	Field and Description
private <any>	columnHeaders
private <any>	columns Represents the actual columns directly contained in this nested column.
private <any>	columnsListener * Listeners * *
(package private) static java.lang.String	DEFAULT_STYLE_CLASS * Static Fields * *
private static int	DRAG_RECT_WIDTH
private double	dragAnchorX
private java.util.Map<<any>,Rectangle>	dragRects
private TableColumnHeader	label
private double	lastX
private static <any>	rectCursorChangeListener
private static <any>	rectMouseDragged
private static <any>	rectMousePressed
private static <any>	rectMouseReleased
private static java.lang.String	TABLE_COLUMN_HEADER_KEY
private static java.lang.String	TABLE_COLUMN_KEY
private <any>	unmodifiableColumnHeaders
(package private) boolean	updateColumns
private WeakListChangeListener	weakColumnsListener

Fields inherited from class javafx.scene.control.skin.TableColumnHeader

changeListenerHandler, columnIndex, columnReorderLine, DEFAULT_COLUMN_WIDTH, isLastVisibleColumn, sortPos

Constructor Summary

Constructors

Constructor and Description
NestedTableColumnHeader(TableColumnBase tc) Creates a new NestedTableColumnHeader instance to visually represent the given TableColumnBase instance.

Method Summary

Modifier and Type	Method and Description
private void	checkState()
private void	columnResizing(TableColumnBase col, MouseEvent me)
private void	columnResizingComplete(TableColumnBase col, MouseEvent me)
private void	columnResizingStarted(double startX)
protected double	computePrefHeight(double width)
protected double	computePrefWidth(double height)
private TableColumnHeader	createColumnHeader(TableColumnBase col)
protected TableColumnHeader	createTableColumnHeader(TableColumnBase col) Creates a new TableColumnHeader instance for the given TableColumnBase instance.
(package private) void	dispose()
<any>	getColumnHeaders() Returns an unmodifiable list of the TableColumnHeader instances that are children of this NestedTableColumnHeader.
(package private) <any>	getColumns()
(package private) double	getDragRectHeight()
(package private) void	initStyleClasses() * Private Implementation * *
private boolean	isColumnResizingEnabled() * Private Implementation: Column Resizing * *
protected void	layoutChildren()
private void	rebuildDragRects()
(package private) boolean	represents(<any> column)
(package private) void	setColumns(<any> newColumns)
(package private) void	setHeadersNeedUpdate()
(package private) void	setParentHeader(NestedTableColumnHeader parentHeader)
(package private) void	setTableHeaderRow(TableHeaderRow header)
private void	updateContent()
(package private) void	updateTableColumnHeaders()

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

columnReordering, columnReorderingComplete, columnReorderingStarted, computeMinHeight, getClassCssMetaData, getCssMetaData, getNestedColumnHeader, getParentHeader, getTableColumn, getTableHeaderRow, getTableSkin, installTableColumnStyleClassListener, moveColumn, queryAccessibleAttribute, setNestedColumnHeader, tableColumnProperty

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_STYLE_CLASS

static final java.lang.String DEFAULT_STYLE_CLASS

* Static Fields * *

See Also:

Constant Field Values

DRAG_RECT_WIDTH

private static final int DRAG_RECT_WIDTH

See Also:

Constant Field Values

TABLE_COLUMN_KEY

private static final java.lang.String TABLE_COLUMN_KEY

See Also:

Constant Field Values

TABLE_COLUMN_HEADER_KEY

private static final java.lang.String TABLE_COLUMN_HEADER_KEY

See Also:

Constant Field Values

columns

private <any> columns

Represents the actual columns directly contained in this nested column. It does NOT include ANY of the children of these columns, if any exist.

label

private TableColumnHeader label

columnHeaders

private <any> columnHeaders

unmodifiableColumnHeaders

private <any> unmodifiableColumnHeaders

lastX

private double lastX

dragAnchorX

private double dragAnchorX

dragRects

private java.util.Map<<any>,Rectangle> dragRects

updateColumns

boolean updateColumns

columnsListener

private final <any> columnsListener

* Listeners * *

weakColumnsListener

private final WeakListChangeListener weakColumnsListener

rectMousePressed

private static final <any> rectMousePressed

rectMouseDragged

private static final <any> rectMouseDragged

rectMouseReleased

private static final <any> rectMouseReleased

rectCursorChangeListener

private static final <any> rectCursorChangeListener

Constructor Detail

NestedTableColumnHeader

public NestedTableColumnHeader(TableColumnBase tc)

Creates a new NestedTableColumnHeader instance to visually represent the given TableColumnBase instance.

Parameters:

tc - The table column to be visually represented by this instance.

Method Detail

dispose

void dispose()

Overrides:

dispose in class TableColumnHeader

getColumnHeaders

public final <any> getColumnHeaders()

Returns an unmodifiable list of the TableColumnHeader instances that are children of this NestedTableColumnHeader.

Returns:

the unmodifiable list of TableColumnHeader of this NestedTableColumnHeader

layoutChildren

protected void layoutChildren()

Overrides:

layoutChildren in class TableColumnHeader

computePrefWidth

protected double computePrefWidth(double height)

Overrides:

computePrefWidth in class TableColumnHeader

computePrefHeight

protected double computePrefHeight(double width)

Overrides:

computePrefHeight in class TableColumnHeader

createTableColumnHeader

protected TableColumnHeader createTableColumnHeader(TableColumnBase col)

Creates a new TableColumnHeader instance for the given TableColumnBase instance. The general pattern for implementing this method is as follows:

• If the given TableColumnBase instance is null, has no child columns, or if the given TableColumnBase instance equals the TableColumnBase instance returned by calling TableColumnHeader.getTableColumn(), then it is suggested to return a TableColumnHeader instance comprised of the given column.
• Otherwise, we can presume that the given TableColumnBase instance has child columns, and in this case it is suggested to return a NestedTableColumnHeader instance instead.

Note: In most circumstances this method should not be overridden, but in some circumstances it makes sense (e.g. testing, or when extreme customization is desired).

Parameters:

col - the table column

Returns:

A new TableColumnHeader instance.

initStyleClasses

void initStyleClasses()

* Private Implementation * *

Overrides:

initStyleClasses in class TableColumnHeader

setTableHeaderRow

void setTableHeaderRow(TableHeaderRow header)

Overrides:

setTableHeaderRow in class TableColumnHeader

setParentHeader

void setParentHeader(NestedTableColumnHeader parentHeader)

Overrides:

setParentHeader in class TableColumnHeader

getColumns

<any> getColumns()

setColumns

void setColumns(<any> newColumns)

updateTableColumnHeaders

void updateTableColumnHeaders()

represents

boolean represents(<any> column)

Overrides:

represents in class TableColumnHeader

getDragRectHeight

double getDragRectHeight()

Overrides:

getDragRectHeight in class TableColumnHeader

setHeadersNeedUpdate

void setHeadersNeedUpdate()

updateContent

private void updateContent()

rebuildDragRects

private void rebuildDragRects()

checkState

private void checkState()

createColumnHeader

private TableColumnHeader createColumnHeader(TableColumnBase col)

isColumnResizingEnabled

private boolean isColumnResizingEnabled()

* Private Implementation: Column Resizing * *

columnResizingStarted

private void columnResizingStarted(double startX)

columnResizing

private void columnResizing(TableColumnBase col,
                            MouseEvent me)

columnResizingComplete

private void columnResizingComplete(TableColumnBase col,
                                    MouseEvent me)