java.awt
class List.AccessibleAWTList.AccessibleAWTListChild

java.lang.Object javax.accessibility.AccessibleContext java.awt.Component.AccessibleAWTComponent java.awt.List.AccessibleAWTList.AccessibleAWTListChild

All Implemented Interfaces:

Serializable, Accessible, AccessibleComponent

Enclosing class:

List.AccessibleAWTList

protected class List.AccessibleAWTList.AccessibleAWTListChild
extends Component.AccessibleAWTComponent
implements Accessible

This class implements accessibility support for List children. It provides an implementation of the Java Accessibility API appropriate to list children user-interface elements.

List.AccessibleAWTList.AccessibleAWTListChild

public List.AccessibleAWTList.AccessibleAWTListChild(List parent,
                                                     int indexInParent)

Parameters:

parent

indexInParent

addFocusListener

public void addFocusListener(FocusListener l)

Adds the specified focus listener to receive focus events from this component.

Overrides:

addFocusListener in class Component.AccessibleAWTComponent

Parameters:

l - the focus listener

contains

public boolean contains(Point p)

Checks whether the specified point is within this object's bounds, where the point's x and y coordinates are defined to be relative to the coordinate system of the object.

Overrides:

contains in class Component.AccessibleAWTComponent

Parameters:

p - the Point relative to the coordinate system of the object

Returns:

true if object contains Point; otherwise false

getAccessibleAt

public Accessible getAccessibleAt(Point p)

Returns the Accessible child, if one exists, contained at the local coordinate Point.

Overrides:

getAccessibleAt in class Component.AccessibleAWTComponent

Parameters:

p - the point relative to the coordinate system of this object

Returns:

the Accessible, if it exists, at the specified location; otherwise null

getAccessibleChild

public Accessible getAccessibleChild(int i)

Return the specified Accessible child of the object. The Accessible children of an Accessible object are zero-based, so the first child of an Accessible child is at index 0, the second child is at index 1, and so on.

Overrides:

getAccessibleChild in class Component.AccessibleAWTComponent

Parameters:

i - zero-based index of child

Returns:

the Accessible child of the object

getAccessibleChildrenCount

public int getAccessibleChildrenCount()

Returns the number of accessible children of the object.

Overrides:

getAccessibleChildrenCount in class Component.AccessibleAWTComponent

Returns:

the number of accessible children of the object.

getAccessibleContext

public AccessibleContext getAccessibleContext()

Gets the AccessibleContext for this object. In the implementation of the Java Accessibility API for this class, return this object, which acts as its own AccessibleContext.

Returns:

this object

getAccessibleIndexInParent

public int getAccessibleIndexInParent()

Get the 0-based index of this object in its accessible parent.

Overrides:

getAccessibleIndexInParent in class Component.AccessibleAWTComponent

Returns:

the 0-based index of this object in its parent; -1 if this object does not have an accessible parent.

getAccessibleRole

public AccessibleRole getAccessibleRole()

Get the role of this object.

Overrides:

getAccessibleRole in class Component.AccessibleAWTComponent

Returns:

an instance of AccessibleRole describing the role of the object

getAccessibleStateSet

public AccessibleStateSet getAccessibleStateSet()

Get the state set of this object. The AccessibleStateSet of an object is composed of a set of unique AccessibleState's. A change in the AccessibleStateSet of an object will cause a PropertyChangeEvent to be fired for the ACCESSIBLE_STATE_PROPERTY property.

Overrides:

getAccessibleStateSet in class Component.AccessibleAWTComponent

Returns:

an instance of AccessibleStateSet containing the current state set of the object

getBackground

public Color getBackground()

Get the background color of this object.

Overrides:

getBackground in class Component.AccessibleAWTComponent

Returns:

the background color, if supported, of the object; otherwise, null

getBounds

public Rectangle getBounds()

Gets the bounds of this object in the form of a Rectangle object. The bounds specify this object's width, height, and location relative to its parent.

Overrides:

getBounds in class Component.AccessibleAWTComponent

Returns:

A rectangle indicating this component's bounds; null if this object is not on the screen.

getCursor

public Cursor getCursor()

Get the Cursor of this object.

Overrides:

getCursor in class Component.AccessibleAWTComponent

Returns:

the Cursor, if supported, of the object; otherwise, null

getFont

public Font getFont()

Get the Font of this object.

Overrides:

getFont in class Component.AccessibleAWTComponent

Returns:

the Font,if supported, for the object; otherwise, null

getFontMetrics

public FontMetrics getFontMetrics(Font f)

Get the FontMetrics of this object.

Overrides:

getFontMetrics in class Component.AccessibleAWTComponent

Parameters:

f - the Font

Returns:

the FontMetrics, if supported, the object; otherwise, null

getForeground

public Color getForeground()

Get the foreground color of this object.

Overrides:

getForeground in class Component.AccessibleAWTComponent

Returns:

the foreground color, if supported, of the object; otherwise, null

getLocale

public Locale getLocale()

Gets the locale of the component. If the component does not have a locale, then the locale of its parent is returned.

Overrides:

getLocale in class Component.AccessibleAWTComponent

Returns:

This component's locale. If this component does not have a locale, the locale of its parent is returned.

getLocation

public Point getLocation()

Gets the location of the object relative to the parent in the form of a point specifying the object's top-left corner in the screen's coordinate space.

Overrides:

getLocation in class Component.AccessibleAWTComponent

Returns:

An instance of Point representing the top-left corner of the objects's bounds in the coordinate space of the screen; null if this object or its parent are not on the screen

getLocationOnScreen

public Point getLocationOnScreen()

Returns the location of the object on the screen.

Overrides:

getLocationOnScreen in class Component.AccessibleAWTComponent

Returns:

location of object on screen; null if this object is not on the screen

getSize

public Dimension getSize()

Returns the size of this object in the form of a Dimension object. The height field of the Dimension object contains this objects's height, and the width field of the Dimension object contains this object's width.

Overrides:

getSize in class Component.AccessibleAWTComponent

Returns:

A Dimension object that indicates the size of this component; null if this object is not on the screen

isEnabled

public boolean isEnabled()

Determine if the object is enabled. Objects that are enabled will also have the AccessibleState.ENABLED state set in their AccessibleStateSet.

Overrides:

isEnabled in class Component.AccessibleAWTComponent

Returns:

true if object is enabled; otherwise, false

isFocusTraversable

public boolean isFocusTraversable()

Returns whether this object can accept focus or not. Objects that can accept focus will also have the AccessibleState.FOCUSABLE state set in their AccessibleStateSet.

Overrides:

isFocusTraversable in class Component.AccessibleAWTComponent

Returns:

true if object can accept focus; otherwise false

isShowing

public boolean isShowing()

Determine if the object is showing. This is determined by checking the visibility of the object and visibility of the object ancestors. Note: this will return true even if the object is obscured by another (for example, it to object is underneath a menu that was pulled down).

Overrides:

isShowing in class Component.AccessibleAWTComponent

Returns:

true if object is showing; otherwise, false

isVisible

public boolean isVisible()

Determine if the object is visible. Note: this means that the object intends to be visible; however, it may not be showing on the screen because one of the objects that this object is contained by is currently not visible. To determine if an object is showing on the screen, use isShowing().

Objects that are visible will also have the AccessibleState.VISIBLE state set in their AccessibleStateSet.

Overrides:

isVisible in class Component.AccessibleAWTComponent

Returns:

true if object is visible; otherwise, false

removeFocusListener

public void removeFocusListener(FocusListener l)

Removes the specified focus listener so it no longer receives focus events from this component.

Overrides:

removeFocusListener in class Component.AccessibleAWTComponent

Parameters:

l - the focus listener

requestFocus

public void requestFocus()

Requests focus for this object. If this object cannot accept focus, nothing will happen. Otherwise, the object will attempt to take focus.

Overrides:

requestFocus in class Component.AccessibleAWTComponent

setBackground

public void setBackground(Color c)

Set the background color of this object.

Overrides:

setBackground in class Component.AccessibleAWTComponent

Parameters:

c - the new Color for the background

setBounds

public void setBounds(Rectangle r)

Sets the bounds of this object in the form of a Rectangle object. The bounds specify this object's width, height, and location relative to its parent.

Overrides:

setBounds in class Component.AccessibleAWTComponent

Parameters:

r - rectangle indicating this component's bounds

setCursor

public void setCursor(Cursor cursor)

Set the Cursor of this object.

The method may have no visual effect if the Java platform implementation and/or the native system do not support changing the mouse cursor shape.

Overrides:

setCursor in class Component.AccessibleAWTComponent

Parameters:

cursor - the new Cursor for the object

setEnabled

public void setEnabled(boolean b)

Set the enabled state of the object.

Overrides:

setEnabled in class Component.AccessibleAWTComponent

Parameters:

b - if true, enables this object; otherwise, disables it

setFont

public void setFont(Font f)

Set the Font of this object.

Overrides:

setFont in class Component.AccessibleAWTComponent

Parameters:

f - the new Font for the object

setForeground

public void setForeground(Color c)

Set the foreground color of this object.

Overrides:

setForeground in class Component.AccessibleAWTComponent

Parameters:

c - the new Color for the foreground

setLocation

public void setLocation(Point p)

Sets the location of the object relative to the parent.

Overrides:

setLocation in class Component.AccessibleAWTComponent

Parameters:

p - the new position for the top-left corner

setSize

public void setSize(Dimension d)

Resizes this object so that it has width and height.

Overrides:

setSize in class Component.AccessibleAWTComponent

Parameters:

d - - The dimension specifying the new size of the object.

setVisible

public void setVisible(boolean b)

Set the visible state of the object.

Overrides:

setVisible in class Component.AccessibleAWTComponent

Parameters:

b - if true, shows this object; otherwise, hides it