javax.swing

Class JTable.AccessibleJTable.AccessibleJTableCell

java.lang.Object

javax.accessibility.AccessibleContext

javax.swing.JTable.AccessibleJTable.AccessibleJTableCell

All Implemented Interfaces:

javax.accessibility.Accessible, javax.accessibility.AccessibleComponent

Enclosing class:

JTable.AccessibleJTable

protected class JTable.AccessibleJTable.AccessibleJTableCell
extends javax.accessibility.AccessibleContext
implements javax.accessibility.Accessible, javax.accessibility.AccessibleComponent

Provides accessibility support for table cells.

Field Summary

Fields inherited from class javax.accessibility.AccessibleContext

ACCESSIBLE_ACTION_PROPERTY, ACCESSIBLE_ACTIVE_DESCENDANT_PROPERTY, ACCESSIBLE_CARET_PROPERTY, ACCESSIBLE_CHILD_PROPERTY, ACCESSIBLE_COMPONENT_BOUNDS_CHANGED, ACCESSIBLE_DESCRIPTION_PROPERTY, ACCESSIBLE_HYPERTEXT_OFFSET, ACCESSIBLE_INVALIDATE_CHILDREN, ACCESSIBLE_NAME_PROPERTY, ACCESSIBLE_SELECTION_PROPERTY, ACCESSIBLE_STATE_PROPERTY, ACCESSIBLE_TABLE_CAPTION_CHANGED, ACCESSIBLE_TABLE_COLUMN_DESCRIPTION_CHANGED, ACCESSIBLE_TABLE_COLUMN_HEADER_CHANGED, ACCESSIBLE_TABLE_MODEL_CHANGED, ACCESSIBLE_TABLE_ROW_DESCRIPTION_CHANGED, ACCESSIBLE_TABLE_ROW_HEADER_CHANGED, ACCESSIBLE_TABLE_SUMMARY_CHANGED, ACCESSIBLE_TEXT_ATTRIBUTES_CHANGED, ACCESSIBLE_TEXT_PROPERTY, ACCESSIBLE_VALUE_PROPERTY, ACCESSIBLE_VISIBLE_DATA_PROPERTY, accessibleDescription, accessibleName, accessibleParent

Constructor Summary

Constructors

Constructor and Description
JTable.AccessibleJTable.AccessibleJTableCell(JTable t, int r, int c, int i) Creates a new AccessibleJTableCell.

Method Summary

Methods

Modifier and Type	Method and Description
void	addFocusListener(java.awt.event.FocusListener listener) Adds a focus listener to this cell.
boolean	contains(java.awt.Point point) Returns true if this table cell contains the location at point, false otherwise.
javax.accessibility.Accessible	getAccessibleAt(java.awt.Point point) Table cells have no children, so we return null here.
javax.accessibility.Accessible	getAccessibleChild(int i) Returns the accessible child at index i.
int	getAccessibleChildrenCount() Returns the number of children of this object.
javax.accessibility.AccessibleContext	getAccessibleContext() Returns the accessible context of this table cell.
int	getAccessibleIndexInParent() Returns the index of this cell in the parent object.
javax.accessibility.AccessibleRole	getAccessibleRole() Returns the accessible row for the table cell.
javax.accessibility.AccessibleStateSet	getAccessibleStateSet() Returns the accessible state set of this accessible table cell.
java.awt.Color	getBackground() Returns the background color of this cell.
java.awt.Rectangle	getBounds() Returns the bounds of the cell relative to its table.
java.awt.Cursor	getCursor() Returns the cursor for this table cell.
java.awt.Font	getFont() Returns the font of the table cell.
java.awt.FontMetrics	getFontMetrics(java.awt.Font font) Returns the font metrics for a specified font.
java.awt.Color	getForeground() Returns the foreground color of the table cell.
java.util.Locale	getLocale() Returns the locale setting for this accessible table cell.
java.awt.Point	getLocation() Returns the location of this cell relative to the table's bounds.
java.awt.Point	getLocationOnScreen() Returns the screen location of the table cell.
java.awt.Dimension	getSize() Returns the size of the table cell.
boolean	isEnabled() Returns true if this table cell is enabled, false otherwise.
boolean	isFocusTraversable() Returns true if this table cell is focus traversable, false otherwise.
boolean	isShowing() Returns true if this table cell is currently showing on screen.
boolean	isVisible() Returns true if this cell is visible, false otherwise.
void	removeFocusListener(java.awt.event.FocusListener listener) Removes a focus listener from the cell.
void	requestFocus() Requests that this table cell gets the keyboard focus.
void	setBackground(java.awt.Color color) Sets the background of the cell.
void	setBounds(java.awt.Rectangle rectangle) The bounds of the table cells cannot be manipulated directly, so this method does nothing.
void	setCursor(java.awt.Cursor cursor) Sets the cursor of the cell.
void	setEnabled(boolean b) Table cells cannot be disabled or enabled individually, so this method does nothing.
void	setFont(java.awt.Font font) Sets the font of the cell.
void	setForeground(java.awt.Color color) Sets the foreground of the cell.
void	setLocation(java.awt.Point point) The location of the table cells cannot be manipulated directly, so this method does nothing.
void	setSize(java.awt.Dimension dimension) The size cannot be set on table cells directly, so this method does nothing.
void	setVisible(boolean b) The visibility cannot be set on individual table cells, so this method does nothing.

Methods inherited from class javax.accessibility.AccessibleContext

addPropertyChangeListener, firePropertyChange, getAccessibleAction, getAccessibleComponent, getAccessibleDescription, getAccessibleEditableText, getAccessibleIcon, getAccessibleName, getAccessibleParent, getAccessibleRelationSet, getAccessibleSelection, getAccessibleTable, getAccessibleText, getAccessibleValue, removePropertyChangeListener, setAccessibleDescription, setAccessibleName, setAccessibleParent

Methods inherited from class java.lang.Object

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

Constructor Detail

JTable.AccessibleJTable.AccessibleJTableCell

public JTable.AccessibleJTable.AccessibleJTableCell(JTable t,
                                            int r,
                                            int c,
                                            int i)

Creates a new AccessibleJTableCell.

Parameters:

t - the table

r - the row

c - the column

i - the index of this cell inside the accessible table parent

Method Detail

getAccessibleRole

public javax.accessibility.AccessibleRole getAccessibleRole()

Returns the accessible row for the table cell.

Specified by:

getAccessibleRole in class javax.accessibility.AccessibleContext

Returns:

the accessible row for the table cell

See Also:

AccessibleRole

getAccessibleStateSet

public javax.accessibility.AccessibleStateSet getAccessibleStateSet()

Returns the accessible state set of this accessible table cell.

Specified by:

getAccessibleStateSet in class javax.accessibility.AccessibleContext

Returns:

the accessible state set of this accessible table cell

See Also:

AccessibleState, AccessibleStateSet, AccessibleContext.addPropertyChangeListener(PropertyChangeListener)

getAccessibleIndexInParent

public int getAccessibleIndexInParent()

Returns the index of this cell in the parent object.

Specified by:

getAccessibleIndexInParent in class javax.accessibility.AccessibleContext

Returns:

the index of this cell in the parent object

See Also:

AccessibleContext.getAccessibleParent(), AccessibleContext.getAccessibleChildrenCount(), AccessibleContext.getAccessibleChild(int)

getAccessibleChildrenCount

public int getAccessibleChildrenCount()

Returns the number of children of this object. Table cells cannot have children, so we return 0 here.

Specified by:

getAccessibleChildrenCount in class javax.accessibility.AccessibleContext

Returns:

0

See Also:

AccessibleContext.getAccessibleChild(int)

getAccessibleChild

public javax.accessibility.Accessible getAccessibleChild(int i)

Returns the accessible child at index i. Table cells don't have children, so we return null here.

Specified by:

getAccessibleChild in class javax.accessibility.AccessibleContext

Parameters:

i - the 0-based index to get

Returns:

null

See Also:

AccessibleContext.getAccessibleChildrenCount()

getLocale

public java.util.Locale getLocale()

Returns the locale setting for this accessible table cell.

Specified by:

getLocale in class javax.accessibility.AccessibleContext

Returns:

the locale setting for this accessible table cell

getAccessibleContext

public javax.accessibility.AccessibleContext getAccessibleContext()

Returns the accessible context of this table cell. Since accessible table cells are their own accessible context, we return this.

Specified by:

getAccessibleContext in interface javax.accessibility.Accessible

Returns:

the accessible context of this table cell

getBackground

public java.awt.Color getBackground()

Returns the background color of this cell.

Specified by:

getBackground in interface javax.accessibility.AccessibleComponent

Returns:

the background color of this cell

See Also:

AccessibleComponent.setBackground(Color)

setBackground

public void setBackground(java.awt.Color color)

Sets the background of the cell. Since table cells cannot have individual background colors, this method does nothing. Set the background directly on the table instead.

Specified by:

setBackground in interface javax.accessibility.AccessibleComponent

Parameters:

color - not used

See Also:

AccessibleComponent.getBackground()

getForeground

public java.awt.Color getForeground()

Returns the foreground color of the table cell.

Specified by:

getForeground in interface javax.accessibility.AccessibleComponent

Returns:

the foreground color of the table cell

See Also:

AccessibleComponent.setForeground(Color)

setForeground

public void setForeground(java.awt.Color color)

Sets the foreground of the cell. Since table cells cannot have individual foreground colors, this method does nothing. Set the foreground directly on the table instead.

Specified by:

setForeground in interface javax.accessibility.AccessibleComponent

Parameters:

color - not used

See Also:

AccessibleComponent.getForeground()

getCursor

public java.awt.Cursor getCursor()

Returns the cursor for this table cell.

Specified by:

getCursor in interface javax.accessibility.AccessibleComponent

Returns:

the cursor for this table cell

See Also:

AccessibleComponent.setCursor(Cursor)

setCursor

public void setCursor(java.awt.Cursor cursor)

Sets the cursor of the cell. Since table cells cannot have individual cursors, this method does nothing. Set the cursor directly on the table instead.

Specified by:

setCursor in interface javax.accessibility.AccessibleComponent

Parameters:

cursor - not used

See Also:

AccessibleComponent.getCursor()

getFont

public java.awt.Font getFont()

Returns the font of the table cell.

Specified by:

getFont in interface javax.accessibility.AccessibleComponent

Returns:

the font of the table cell

See Also:

AccessibleComponent.setFont(Font)

setFont

public void setFont(java.awt.Font font)

Sets the font of the cell. Since table cells cannot have individual fonts, this method does nothing. Set the font directly on the table instead.

Specified by:

setFont in interface javax.accessibility.AccessibleComponent

Parameters:

font - not used

See Also:

AccessibleComponent.getFont()

getFontMetrics

public java.awt.FontMetrics getFontMetrics(java.awt.Font font)

Returns the font metrics for a specified font.

Specified by:

getFontMetrics in interface javax.accessibility.AccessibleComponent

Parameters:

font - the font for which we return the metrics

Returns:

the font metrics for a specified font

See Also:

AccessibleComponent.getFont()

isEnabled

public boolean isEnabled()

Returns true if this table cell is enabled, false otherwise.

Specified by:

isEnabled in interface javax.accessibility.AccessibleComponent

Returns:

true if this table cell is enabled, false otherwise

See Also:

AccessibleComponent.setEnabled(boolean), AccessibleContext.getAccessibleStateSet(), AccessibleState.ENABLED

setEnabled

public void setEnabled(boolean b)

Table cells cannot be disabled or enabled individually, so this method does nothing. Set the enabled flag on the table itself.

Specified by:

setEnabled in interface javax.accessibility.AccessibleComponent

Parameters:

b - not used here

See Also:

AccessibleComponent.isEnabled()

isVisible

public boolean isVisible()

Returns true if this cell is visible, false otherwise.

Specified by:

isVisible in interface javax.accessibility.AccessibleComponent

Returns:

true if this cell is visible, false otherwise

See Also:

AccessibleComponent.setVisible(boolean), AccessibleContext.getAccessibleStateSet(), AccessibleState.VISIBLE

setVisible

public void setVisible(boolean b)

The visibility cannot be set on individual table cells, so this method does nothing. Set the visibility on the table itself.

Specified by:

setVisible in interface javax.accessibility.AccessibleComponent

Parameters:

b - not used

See Also:

AccessibleComponent.isVisible()

isShowing

public boolean isShowing()

Returns true if this table cell is currently showing on screen.

Specified by:

isShowing in interface javax.accessibility.AccessibleComponent

Returns:

true if this table cell is currently showing on screen

See Also:

AccessibleComponent.isVisible(), AccessibleComponent.setVisible(boolean), AccessibleContext.getAccessibleStateSet(), AccessibleState.SHOWING

contains

public boolean contains(java.awt.Point point)

Returns true if this table cell contains the location at point, false otherwise. point is interpreted as relative to the coordinate system of the table cell.

Specified by:

contains in interface javax.accessibility.AccessibleComponent

Parameters:

point - the Point to locate

Returns:

true if this table cell contains the location at point, false otherwise

See Also:

AccessibleComponent.getBounds()

getLocationOnScreen

public java.awt.Point getLocationOnScreen()

Returns the screen location of the table cell.

Specified by:

getLocationOnScreen in interface javax.accessibility.AccessibleComponent

Returns:

the screen location of the table cell

See Also:

AccessibleComponent.getBounds(), AccessibleComponent.getLocation()

getLocation

public java.awt.Point getLocation()

Returns the location of this cell relative to the table's bounds.

Specified by:

getLocation in interface javax.accessibility.AccessibleComponent

Returns:

the location of this cell relative to the table's bounds

See Also:

AccessibleComponent.getBounds(), AccessibleComponent.getLocationOnScreen(), AccessibleComponent.setLocation(Point)

setLocation

public void setLocation(java.awt.Point point)

The location of the table cells cannot be manipulated directly, so this method does nothing.

Specified by:

setLocation in interface javax.accessibility.AccessibleComponent

Parameters:

point - not used

See Also:

AccessibleComponent.getLocation()

getBounds

public java.awt.Rectangle getBounds()

Returns the bounds of the cell relative to its table.

Specified by:

getBounds in interface javax.accessibility.AccessibleComponent

Returns:

the bounds of the cell relative to its table

See Also:

AccessibleComponent.contains(Point)

setBounds

public void setBounds(java.awt.Rectangle rectangle)

The bounds of the table cells cannot be manipulated directly, so this method does nothing.

Specified by:

setBounds in interface javax.accessibility.AccessibleComponent

Parameters:

rectangle - not used

getSize

public java.awt.Dimension getSize()

Returns the size of the table cell.

Specified by:

getSize in interface javax.accessibility.AccessibleComponent

Returns:

the size of the table cell

See Also:

AccessibleComponent.setSize(Dimension)

setSize

public void setSize(java.awt.Dimension dimension)

The size cannot be set on table cells directly, so this method does nothing.

Specified by:

setSize in interface javax.accessibility.AccessibleComponent

Parameters:

dimension - not used

See Also:

AccessibleComponent.getSize()

getAccessibleAt

public javax.accessibility.Accessible getAccessibleAt(java.awt.Point point)

Table cells have no children, so we return null here.

Specified by:

getAccessibleAt in interface javax.accessibility.AccessibleComponent

Parameters:

point - the location within this component's coordinate system

Returns:

null

isFocusTraversable

public boolean isFocusTraversable()

Returns true if this table cell is focus traversable, false otherwise.

Specified by:

isFocusTraversable in interface javax.accessibility.AccessibleComponent

Returns:

true if this table cell is focus traversable, false otherwise

See Also:

AccessibleContext.getAccessibleStateSet(), AccessibleState.FOCUSABLE, AccessibleState.FOCUSED

requestFocus

public void requestFocus()

Requests that this table cell gets the keyboard focus.

Specified by:

requestFocus in interface javax.accessibility.AccessibleComponent

See Also:

AccessibleComponent.isFocusTraversable(), AccessibleState.FOCUSED

addFocusListener

public void addFocusListener(java.awt.event.FocusListener listener)

Adds a focus listener to this cell. The focus listener is really added to the table, so there is no way to find out when an individual cell changes the focus.

Specified by:

addFocusListener in interface javax.accessibility.AccessibleComponent

Parameters:

listener - the focus listener to add

See Also:

AccessibleComponent.removeFocusListener(FocusListener)

removeFocusListener

public void removeFocusListener(java.awt.event.FocusListener listener)

Removes a focus listener from the cell. The focus listener is really removed from the table.

Specified by:

removeFocusListener in interface javax.accessibility.AccessibleComponent

Parameters:

listener - the listener to remove

See Also:

AccessibleComponent.addFocusListener(FocusListener)