Java™ Platform
Standard Ed. 6

javax.swing
Class JList.AccessibleJList.AccessibleJListChild

java.lang.Object
  extended by javax.accessibility.AccessibleContext
      extended by javax.swing.JList.AccessibleJList.AccessibleJListChild
All Implemented Interfaces:
Accessible, AccessibleComponent
Enclosing class:
JList.AccessibleJList

protected class JList.AccessibleJList.AccessibleJListChild
extends AccessibleContext
implements Accessible, AccessibleComponent

This class implements accessibility support appropriate for list children.


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
JList.AccessibleJList.AccessibleJListChild(JList parent, int indexInParent)
           
 
Method Summary
 void addFocusListener(FocusListener l)
          Adds the specified focus listener to receive focus events from this component.
 void addPropertyChangeListener(PropertyChangeListener l)
          Adds a PropertyChangeListener to the listener list.
 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.
 AccessibleAction getAccessibleAction()
          Gets the AccessibleAction associated with this object that supports one or more actions.
 Accessible getAccessibleAt(Point p)
          Returns the Accessible child, if one exists, contained at the local coordinate Point.
 Accessible getAccessibleChild(int i)
          Returns the specified Accessible child of the object.
 int getAccessibleChildrenCount()
          Returns the number of accessible children of the object.
 AccessibleComponent getAccessibleComponent()
          Get the AccessibleComponent associated with this object.
 AccessibleContext getAccessibleContext()
          Get the AccessibleContext for this object.
 String getAccessibleDescription()
          Gets the accessibleDescription property of this object.
 AccessibleIcon[] getAccessibleIcon()
          Returns the icon for the element renderer, as the only item of an array of AccessibleIcons or a null array if the renderer component contains no icons.
 int getAccessibleIndexInParent()
          Gets the 0-based index of this object in its accessible parent.
 String getAccessibleName()
          Gets the accessibleName property of this object.
 AccessibleRole getAccessibleRole()
          Gets the role of this object.
 AccessibleSelection getAccessibleSelection()
          Gets the AccessibleSelection associated with this object which allows its Accessible children to be selected.
 AccessibleStateSet getAccessibleStateSet()
          Gets the state set of this object.
 AccessibleText getAccessibleText()
          Gets the AccessibleText associated with this object presenting text on the display.
 AccessibleValue getAccessibleValue()
          Gets the AccessibleValue associated with this object that supports a Numerical value.
 Color getBackground()
          Gets the background color of this object.
 Rectangle getBounds()
          Gets the bounds of this object in the form of a Rectangle object.
 Cursor getCursor()
          Gets the Cursor of this object.
 Font getFont()
          Gets the Font of this object.
 FontMetrics getFontMetrics(Font f)
          Gets the FontMetrics of this object.
 Color getForeground()
          Gets the foreground color of this object.
 Locale getLocale()
          Gets the locale of the component.
 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.
 Point getLocationOnScreen()
          Returns the location of the object on the screen.
 Dimension getSize()
          Returns the size of this object in the form of a Dimension object.
 boolean isEnabled()
          Determines if the object is enabled.
 boolean isFocusTraversable()
          Returns whether this object can accept focus or not.
 boolean isShowing()
          Determines if the object is showing.
 boolean isVisible()
          Determines if the object is visible.
 void removeFocusListener(FocusListener l)
          Removes the specified focus listener so it no longer receives focus events from this component.
 void removePropertyChangeListener(PropertyChangeListener l)
          Removes a PropertyChangeListener from the listener list.
 void requestFocus()
          Requests focus for this object.
 void setAccessibleDescription(String s)
          Sets the accessible description of this object.
 void setAccessibleName(String s)
          Sets the localized accessible name of this object.
 void setBackground(Color c)
          Sets the background color of this object.
 void setBounds(Rectangle r)
          Sets the bounds of this object in the form of a Rectangle object.
 void setCursor(Cursor c)
          Sets the Cursor of this object.
 void setEnabled(boolean b)
          Sets the enabled state of the object.
 void setFont(Font f)
          Sets the Font of this object.
 void setForeground(Color c)
          Sets the foreground color of this object.
 void setLocation(Point p)
          Sets the location of the object relative to the parent.
 void setSize(Dimension d)
          Resizes this object so that it has width and height.
 void setVisible(boolean b)
          Sets the visible state of the object.
 
Methods inherited from class javax.accessibility.AccessibleContext
firePropertyChange, getAccessibleEditableText, getAccessibleParent, getAccessibleRelationSet, getAccessibleTable, setAccessibleParent
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

JList.AccessibleJList.AccessibleJListChild

public JList.AccessibleJList.AccessibleJListChild(JList parent,
                                                  int indexInParent)
Method Detail

getAccessibleContext

public AccessibleContext getAccessibleContext()
Get the AccessibleContext for this object. In the implementation of the Java Accessibility API for this class, returns this object, which is its own AccessibleContext.

Specified by:
getAccessibleContext in interface Accessible
Returns:
this object

getAccessibleName

public String getAccessibleName()
Description copied from class: AccessibleContext
Gets the accessibleName property of this object. The accessibleName property of an object is a localized String that designates the purpose of the object. For example, the accessibleName property of a label or button might be the text of the label or button itself. In the case of an object that doesn't display its name, the accessibleName should still be set. For example, in the case of a text field used to enter the name of a city, the accessibleName for the en_US locale could be 'city.'

Overrides:
getAccessibleName in class AccessibleContext
Returns:
the localized name of the object; null if this object does not have a name
See Also:
AccessibleContext.setAccessibleName(java.lang.String)

setAccessibleName

public void setAccessibleName(String s)
Description copied from class: AccessibleContext
Sets the localized accessible name of this object. Changing the name will cause a PropertyChangeEvent to be fired for the ACCESSIBLE_NAME_PROPERTY property.

Overrides:
setAccessibleName in class AccessibleContext
Parameters:
s - the new localized name of the object.
See Also:
AccessibleContext.getAccessibleName(), AccessibleContext.addPropertyChangeListener(java.beans.PropertyChangeListener)

getAccessibleDescription

public String getAccessibleDescription()
Description copied from class: AccessibleContext
Gets the accessibleDescription property of this object. The accessibleDescription property of this object is a short localized phrase describing the purpose of the object. For example, in the case of a 'Cancel' button, the accessibleDescription could be 'Ignore changes and close dialog box.'

Overrides:
getAccessibleDescription in class AccessibleContext
Returns:
the localized description of the object; null if this object does not have a description
See Also:
AccessibleContext.setAccessibleDescription(java.lang.String)

setAccessibleDescription

public void setAccessibleDescription(String s)
Description copied from class: AccessibleContext
Sets the accessible description of this object. Changing the name will cause a PropertyChangeEvent to be fired for the ACCESSIBLE_DESCRIPTION_PROPERTY property.

Overrides:
setAccessibleDescription in class AccessibleContext
Parameters:
s - the new localized description of the object
See Also:
AccessibleContext.setAccessibleName(java.lang.String), AccessibleContext.addPropertyChangeListener(java.beans.PropertyChangeListener)

getAccessibleRole

public AccessibleRole getAccessibleRole()
Description copied from class: AccessibleContext
Gets the role of this object. The role of the object is the generic purpose or use of the class of this object. For example, the role of a push button is AccessibleRole.PUSH_BUTTON. The roles in AccessibleRole are provided so component developers can pick from a set of predefined roles. This enables assistive technologies to provide a consistent interface to various tweaked subclasses of components (e.g., use AccessibleRole.PUSH_BUTTON for all components that act like a push button) as well as distinguish between sublasses that behave differently (e.g., AccessibleRole.CHECK_BOX for check boxes and AccessibleRole.RADIO_BUTTON for radio buttons).

Note that the AccessibleRole class is also extensible, so custom component developers can define their own AccessibleRole's if the set of predefined roles is inadequate.

Specified by:
getAccessibleRole in class AccessibleContext
Returns:
an instance of AccessibleRole describing the role of the object
See Also:
AccessibleRole

getAccessibleStateSet

public AccessibleStateSet getAccessibleStateSet()
Description copied from class: AccessibleContext
Gets the state set of this object. The AccessibleStateSet of an object is composed of a set of unique AccessibleStates. A change in the AccessibleStateSet of an object will cause a PropertyChangeEvent to be fired for the ACCESSIBLE_STATE_PROPERTY property.

Specified by:
getAccessibleStateSet in class AccessibleContext
Returns:
an instance of AccessibleStateSet containing the current state set of the object
See Also:
AccessibleStateSet, AccessibleState, AccessibleContext.addPropertyChangeListener(java.beans.PropertyChangeListener)

getAccessibleIndexInParent

public int getAccessibleIndexInParent()
Description copied from class: AccessibleContext
Gets the 0-based index of this object in its accessible parent.

Specified by:
getAccessibleIndexInParent in class AccessibleContext
Returns:
the 0-based index of this object in its parent; -1 if this object does not have an accessible parent.
See Also:
AccessibleContext.getAccessibleParent(), AccessibleContext.getAccessibleChildrenCount(), AccessibleContext.getAccessibleChild(int)

getAccessibleChildrenCount

public int getAccessibleChildrenCount()
Description copied from class: AccessibleContext
Returns the number of accessible children of the object.

Specified by:
getAccessibleChildrenCount in class AccessibleContext
Returns:
the number of accessible children of the object.

getAccessibleChild

public Accessible getAccessibleChild(int i)
Description copied from class: AccessibleContext
Returns 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.

Specified by:
getAccessibleChild in class AccessibleContext
Parameters:
i - zero-based index of child
Returns:
the Accessible child of the object
See Also:
AccessibleContext.getAccessibleChildrenCount()

getLocale

public Locale getLocale()
Description copied from class: AccessibleContext
Gets the locale of the component. If the component does not have a locale, then the locale of its parent is returned.

Specified by:
getLocale in class AccessibleContext
Returns:
this component's locale. If this component does not have a locale, the locale of its parent is returned.

addPropertyChangeListener

public void addPropertyChangeListener(PropertyChangeListener l)
Description copied from class: AccessibleContext
Adds a PropertyChangeListener to the listener list. The listener is registered for all Accessible properties and will be called when those properties change.

Overrides:
addPropertyChangeListener in class AccessibleContext
Parameters:
l - The PropertyChangeListener to be added
See Also:
AccessibleContext.ACCESSIBLE_NAME_PROPERTY, AccessibleContext.ACCESSIBLE_DESCRIPTION_PROPERTY, AccessibleContext.ACCESSIBLE_STATE_PROPERTY, AccessibleContext.ACCESSIBLE_VALUE_PROPERTY, AccessibleContext.ACCESSIBLE_SELECTION_PROPERTY, AccessibleContext.ACCESSIBLE_TEXT_PROPERTY, AccessibleContext.ACCESSIBLE_VISIBLE_DATA_PROPERTY

removePropertyChangeListener

public void removePropertyChangeListener(PropertyChangeListener l)
Description copied from class: AccessibleContext
Removes a PropertyChangeListener from the listener list. This removes a PropertyChangeListener that was registered for all properties.

Overrides:
removePropertyChangeListener in class AccessibleContext
Parameters:
l - The PropertyChangeListener to be removed

getAccessibleAction

public AccessibleAction getAccessibleAction()
Description copied from class: AccessibleContext
Gets the AccessibleAction associated with this object that supports one or more actions.

Overrides:
getAccessibleAction in class AccessibleContext
Returns:
AccessibleAction if supported by object; else return null
See Also:
AccessibleAction

getAccessibleComponent

public AccessibleComponent getAccessibleComponent()
Get the AccessibleComponent associated with this object. In the implementation of the Java Accessibility API for this class, return this object, which is responsible for implementing the AccessibleComponent interface on behalf of itself.

Overrides:
getAccessibleComponent in class AccessibleContext
Returns:
this object
See Also:
AccessibleComponent

getAccessibleSelection

public AccessibleSelection getAccessibleSelection()
Description copied from class: AccessibleContext
Gets the AccessibleSelection associated with this object which allows its Accessible children to be selected.

Overrides:
getAccessibleSelection in class AccessibleContext
Returns:
AccessibleSelection if supported by object; else return null
See Also:
AccessibleSelection

getAccessibleText

public AccessibleText getAccessibleText()
Description copied from class: AccessibleContext
Gets the AccessibleText associated with this object presenting text on the display.

Overrides:
getAccessibleText in class AccessibleContext
Returns:
AccessibleText if supported by object; else return null
See Also:
AccessibleText

getAccessibleValue

public AccessibleValue getAccessibleValue()
Description copied from class: AccessibleContext
Gets the AccessibleValue associated with this object that supports a Numerical value.

Overrides:
getAccessibleValue in class AccessibleContext
Returns:
AccessibleValue if supported by object; else return null
See Also:
AccessibleValue

getBackground

public Color getBackground()
Description copied from interface: AccessibleComponent
Gets the background color of this object.

Specified by:
getBackground in interface AccessibleComponent
Returns:
the background color, if supported, of the object; otherwise, null
See Also:
AccessibleComponent.setBackground(java.awt.Color)

setBackground

public void setBackground(Color c)
Description copied from interface: AccessibleComponent
Sets the background color of this object.

Specified by:
setBackground in interface AccessibleComponent
Parameters:
c - the new Color for the background
See Also:
AccessibleComponent.setBackground(java.awt.Color)

getForeground

public Color getForeground()
Description copied from interface: AccessibleComponent
Gets the foreground color of this object.

Specified by:
getForeground in interface AccessibleComponent
Returns:
the foreground color, if supported, of the object; otherwise, null
See Also:
AccessibleComponent.setForeground(java.awt.Color)

setForeground

public void setForeground(Color c)
Description copied from interface: AccessibleComponent
Sets the foreground color of this object.

Specified by:
setForeground in interface AccessibleComponent
Parameters:
c - the new Color for the foreground
See Also:
AccessibleComponent.getForeground()

getCursor

public Cursor getCursor()
Description copied from interface: AccessibleComponent
Gets the Cursor of this object.

Specified by:
getCursor in interface AccessibleComponent
Returns:
the Cursor, if supported, of the object; otherwise, null
See Also:
AccessibleComponent.setCursor(java.awt.Cursor)

setCursor

public void setCursor(Cursor c)
Description copied from interface: AccessibleComponent
Sets the Cursor of this object.

Specified by:
setCursor in interface AccessibleComponent
Parameters:
c - the new Cursor for the object
See Also:
AccessibleComponent.getCursor()

getFont

public Font getFont()
Description copied from interface: AccessibleComponent
Gets the Font of this object.

Specified by:
getFont in interface AccessibleComponent
Returns:
the Font,if supported, for the object; otherwise, null
See Also:
AccessibleComponent.setFont(java.awt.Font)

setFont

public void setFont(Font f)
Description copied from interface: AccessibleComponent
Sets the Font of this object.

Specified by:
setFont in interface AccessibleComponent
Parameters:
f - the new Font for the object
See Also:
AccessibleComponent.getFont()

getFontMetrics

public FontMetrics getFontMetrics(Font f)
Description copied from interface: AccessibleComponent
Gets the FontMetrics of this object.

Specified by:
getFontMetrics in interface AccessibleComponent
Parameters:
f - the Font
Returns:
the FontMetrics, if supported, the object; otherwise, null
See Also:
AccessibleComponent.getFont()

isEnabled

public boolean isEnabled()
Description copied from interface: AccessibleComponent
Determines if the object is enabled. Objects that are enabled will also have the AccessibleState.ENABLED state set in their AccessibleStateSets.

Specified by:
isEnabled in interface AccessibleComponent
Returns:
true if object is enabled; otherwise, false
See Also:
AccessibleComponent.setEnabled(boolean), AccessibleContext.getAccessibleStateSet(), AccessibleState.ENABLED, AccessibleStateSet

setEnabled

public void setEnabled(boolean b)
Description copied from interface: AccessibleComponent
Sets the enabled state of the object.

Specified by:
setEnabled in interface AccessibleComponent
Parameters:
b - if true, enables this object; otherwise, disables it
See Also:
AccessibleComponent.isEnabled()

isVisible

public boolean isVisible()
Description copied from interface: AccessibleComponent
Determines 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 AccessibleStateSets.

Specified by:
isVisible in interface AccessibleComponent
Returns:
true if object is visible; otherwise, false
See Also:
AccessibleComponent.setVisible(boolean), AccessibleContext.getAccessibleStateSet(), AccessibleState.VISIBLE, AccessibleStateSet

setVisible

public void setVisible(boolean b)
Description copied from interface: AccessibleComponent
Sets the visible state of the object.

Specified by:
setVisible in interface AccessibleComponent
Parameters:
b - if true, shows this object; otherwise, hides it
See Also:
AccessibleComponent.isVisible()

isShowing

public boolean isShowing()
Description copied from interface: AccessibleComponent
Determines if the object is showing. This is determined by checking the visibility of the object and its ancestors. Note: this will return true even if the object is obscured by another (for example, it is underneath a menu that was pulled down).

Specified by:
isShowing in interface AccessibleComponent
Returns:
true if object is showing; otherwise, false

contains

public boolean contains(Point p)
Description copied from interface: AccessibleComponent
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.

Specified by:
contains in interface AccessibleComponent
Parameters:
p - the Point relative to the coordinate system of the object
Returns:
true if object contains Point; otherwise false
See Also:
AccessibleComponent.getBounds()

getLocationOnScreen

public Point getLocationOnScreen()
Description copied from interface: AccessibleComponent
Returns the location of the object on the screen.

Specified by:
getLocationOnScreen in interface AccessibleComponent
Returns:
the location of the object on screen; null if this object is not on the screen
See Also:
AccessibleComponent.getBounds(), AccessibleComponent.getLocation()

getLocation

public Point getLocation()
Description copied from interface: AccessibleComponent
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.

Specified by:
getLocation in interface AccessibleComponent
Returns:
An instance of Point representing the top-left corner of the object's bounds in the coordinate space of the screen; null if this object or its parent are not on the screen
See Also:
AccessibleComponent.getBounds(), AccessibleComponent.getLocationOnScreen()

setLocation

public void setLocation(Point p)
Description copied from interface: AccessibleComponent
Sets the location of the object relative to the parent.

Specified by:
setLocation in interface AccessibleComponent
Parameters:
p - the new position for the top-left corner
See Also:
AccessibleComponent.getLocation()

getBounds

public Rectangle getBounds()
Description copied from interface: AccessibleComponent
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.

Specified by:
getBounds in interface AccessibleComponent
Returns:
A rectangle indicating this component's bounds; null if this object is not on the screen.
See Also:
AccessibleComponent.contains(java.awt.Point)

setBounds

public void setBounds(Rectangle r)
Description copied from interface: AccessibleComponent
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.

Specified by:
setBounds in interface AccessibleComponent
Parameters:
r - rectangle indicating this component's bounds
See Also:
AccessibleComponent.getBounds()

getSize

public Dimension getSize()
Description copied from interface: AccessibleComponent
Returns the size of this object in the form of a Dimension object. The height field of the Dimension object contains this object's height, and the width field of the Dimension object contains this object's width.

Specified by:
getSize in interface AccessibleComponent
Returns:
A Dimension object that indicates the size of this component; null if this object is not on the screen
See Also:
AccessibleComponent.setSize(java.awt.Dimension)

setSize

public void setSize(Dimension d)
Description copied from interface: AccessibleComponent
Resizes this object so that it has width and height.

Specified by:
setSize in interface AccessibleComponent
Parameters:
d - The dimension specifying the new size of the object.
See Also:
AccessibleComponent.getSize()

getAccessibleAt

public Accessible getAccessibleAt(Point p)
Description copied from interface: AccessibleComponent
Returns the Accessible child, if one exists, contained at the local coordinate Point.

Specified by:
getAccessibleAt in interface AccessibleComponent
Parameters:
p - The point relative to the coordinate system of this object.
Returns:
the Accessible, if it exists, at the specified location; otherwise null

isFocusTraversable

public boolean isFocusTraversable()
Description copied from interface: AccessibleComponent
Returns whether this object can accept focus or not. Objects that can accept focus will also have the AccessibleState.FOCUSABLE state set in their AccessibleStateSets.

Specified by:
isFocusTraversable in interface AccessibleComponent
Returns:
true if object can accept focus; otherwise false
See Also:
AccessibleContext.getAccessibleStateSet(), AccessibleState.FOCUSABLE, AccessibleState.FOCUSED, AccessibleStateSet

requestFocus

public void requestFocus()
Description copied from interface: AccessibleComponent
Requests focus for this object. If this object cannot accept focus, nothing will happen. Otherwise, the object will attempt to take focus.

Specified by:
requestFocus in interface AccessibleComponent
See Also:
AccessibleComponent.isFocusTraversable()

addFocusListener

public void addFocusListener(FocusListener l)
Description copied from interface: AccessibleComponent
Adds the specified focus listener to receive focus events from this component.

Specified by:
addFocusListener in interface AccessibleComponent
Parameters:
l - the focus listener
See Also:
AccessibleComponent.removeFocusListener(java.awt.event.FocusListener)

removeFocusListener

public void removeFocusListener(FocusListener l)
Description copied from interface: AccessibleComponent
Removes the specified focus listener so it no longer receives focus events from this component.

Specified by:
removeFocusListener in interface AccessibleComponent
Parameters:
l - the focus listener
See Also:
AccessibleComponent.addFocusListener(java.awt.event.FocusListener)

getAccessibleIcon

public AccessibleIcon[] getAccessibleIcon()
Returns the icon for the element renderer, as the only item of an array of AccessibleIcons or a null array if the renderer component contains no icons.

Overrides:
getAccessibleIcon in class AccessibleContext
Returns:
an array containing the accessible icon or a null array if none
Since:
1.3
See Also:
AccessibleIcon

Java™ Platform
Standard Ed. 6

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