javax.swing
Class JLabel.AccessibleJLabel

java.lang.Object
  extended by javax.accessibility.AccessibleContext
      extended by java.awt.Component.AccessibleAWTComponent
          extended by java.awt.Container.AccessibleAWTContainer
              extended by javax.swing.JComponent.AccessibleJComponent
                  extended by javax.swing.JLabel.AccessibleJLabel
All Implemented Interfaces:
Serializable, AccessibleComponent, AccessibleExtendedComponent, AccessibleText
Enclosing class:
JLabel

protected class JLabel.AccessibleJLabel
extends JComponent.AccessibleJComponent
implements AccessibleText, AccessibleExtendedComponent

Provides the accessibility features for the JLabel component.

See Also:
Serialized Form

Nested Class Summary
 
Nested classes/interfaces inherited from class javax.swing.JComponent.AccessibleJComponent
JComponent.AccessibleJComponent.AccessibleContainerHandler, JComponent.AccessibleJComponent.AccessibleFocusHandler
 
Nested classes/interfaces inherited from class java.awt.Component.AccessibleAWTComponent
Component.AccessibleAWTComponent.AccessibleAWTComponentHandler, Component.AccessibleAWTComponent.AccessibleAWTFocusHandler
 
Field Summary
 
Fields inherited from class javax.swing.JComponent.AccessibleJComponent
accessibleContainerHandler, accessibleFocusHandler
 
Fields inherited from class java.awt.Component.AccessibleAWTComponent
accessibleAWTComponentHandler, accessibleAWTFocusHandler
 
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
 
Fields inherited from interface javax.accessibility.AccessibleText
CHARACTER, SENTENCE, WORD
 
Constructor Summary
protected JLabel.AccessibleJLabel()
           
 
Method Summary
 String getAccessibleName()
          Returns the accessible name.
 AccessibleRole getAccessibleRole()
          Returns the accessible role for the JLabel component.
 String getAfterIndex(int part, int index)
          Returns the character, word or sentence after the specified index.
 String getAtIndex(int part, int index)
          Returns the character, word or sentence at the specified index.
 String getBeforeIndex(int part, int index)
          Returns the character, word or sentence before the specified index.
 int getCaretPosition()
          Returns the caret position.
 AttributeSet getCharacterAttribute(int index)
          Returns an AttributeSet that reflects the text attributes of the specified character.
 Rectangle getCharacterBounds(int index)
          Returns the bounding box of the character at the specified index.
 int getCharCount()
          Returns the number of characters that are displayed by the JLabel.
 int getIndexAtPoint(Point point)
          Returns the index of the character that is located at the specified point.
 String getSelectedText()
          Returns the selected text.
 int getSelectionEnd()
          Returns the end index of the selected text.
 int getSelectionStart()
          Returns the start index of the selected text.
 
Methods inherited from class javax.swing.JComponent.AccessibleJComponent
addPropertyChangeListener, getAccessibleChild, getAccessibleChildrenCount, getAccessibleDescription, getAccessibleKeyBinding, getAccessibleStateSet, getBorderTitle, getTitledBorderText, getToolTipText, removePropertyChangeListener
 
Methods inherited from class java.awt.Container.AccessibleAWTContainer
getAccessibleAt
 
Methods inherited from class java.awt.Component.AccessibleAWTComponent
addFocusListener, contains, getAccessibleComponent, getAccessibleIndexInParent, getAccessibleParent, getBackground, getBounds, getCursor, getFont, getFontMetrics, getForeground, getLocale, getLocation, getLocationOnScreen, getSize, isEnabled, isFocusTraversable, isShowing, isVisible, removeFocusListener, requestFocus, setBackground, setBounds, setCursor, setEnabled, setFont, setForeground, setLocation, setSize, setVisible
 
Methods inherited from class javax.accessibility.AccessibleContext
firePropertyChange, getAccessibleAction, getAccessibleEditableText, getAccessibleIcon, getAccessibleRelationSet, getAccessibleSelection, getAccessibleTable, getAccessibleText, getAccessibleValue, setAccessibleDescription, setAccessibleName, setAccessibleParent
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface javax.accessibility.AccessibleExtendedComponent
getAccessibleKeyBinding, getTitledBorderText, getToolTipText
 
Methods inherited from interface javax.accessibility.AccessibleComponent
addFocusListener, contains, getAccessibleAt, getBackground, getBounds, getCursor, getFont, getFontMetrics, getForeground, getLocation, getLocationOnScreen, getSize, isEnabled, isFocusTraversable, isShowing, isVisible, removeFocusListener, requestFocus, setBackground, setBounds, setCursor, setEnabled, setFont, setForeground, setLocation, setSize, setVisible
 

Constructor Detail

JLabel.AccessibleJLabel

protected JLabel.AccessibleJLabel()
Method Detail

getAccessibleName

public String getAccessibleName()
Returns the accessible name.

Overrides:
getAccessibleName in class JComponent.AccessibleJComponent
Returns:
The accessible name.
See Also:
AccessibleContext.setAccessibleName(String)

getAccessibleRole

public AccessibleRole getAccessibleRole()
Returns the accessible role for the JLabel component.

Overrides:
getAccessibleRole in class JComponent.AccessibleJComponent
Returns:
AccessibleRole.LABEL.
See Also:
AccessibleRole

getSelectedText

public String getSelectedText()
Returns the selected text. This is null since JLabels are not selectable.

Specified by:
getSelectedText in interface AccessibleText
Returns:
null because JLabels cannot have selected text

getSelectionStart

public int getSelectionStart()
Returns the start index of the selected text.

Specified by:
getSelectionStart in interface AccessibleText
Returns:
the start index of the selected text

getSelectionEnd

public int getSelectionEnd()
Returns the end index of the selected text.

Specified by:
getSelectionEnd in interface AccessibleText
Returns:
the end index of the selected text

getCharacterAttribute

public AttributeSet getCharacterAttribute(int index)
Returns an AttributeSet that reflects the text attributes of the specified character. We return an empty AttributeSet here, because JLabels don't support text attributes (at least not yet).

Specified by:
getCharacterAttribute in interface AccessibleText
Parameters:
index - the index of the character
Returns:
an AttributeSet that reflects the text attributes of the specified character

getAtIndex

public String getAtIndex(int part,
                         int index)
Returns the character, word or sentence at the specified index. The part parameter determines what is returned, the character, word or sentence after the index.

Specified by:
getAtIndex in interface AccessibleText
Parameters:
part - one of AccessibleText.CHARACTER, AccessibleText.WORD or AccessibleText.SENTENCE, specifying what is returned
index - the index
Returns:
the character, word or sentence after index

getAfterIndex

public String getAfterIndex(int part,
                            int index)
Returns the character, word or sentence after the specified index. The part parameter determines what is returned, the character, word or sentence after the index.

Specified by:
getAfterIndex in interface AccessibleText
Parameters:
part - one of AccessibleText.CHARACTER, AccessibleText.WORD or AccessibleText.SENTENCE, specifying what is returned
index - the index
Returns:
the character, word or sentence after index

getBeforeIndex

public String getBeforeIndex(int part,
                             int index)
Returns the character, word or sentence before the specified index. The part parameter determines what is returned, the character, word or sentence before the index.

Specified by:
getBeforeIndex in interface AccessibleText
Parameters:
part - one of AccessibleText.CHARACTER, AccessibleText.WORD or AccessibleText.SENTENCE, specifying what is returned
index - the index
Returns:
the character, word or sentence before index

getCaretPosition

public int getCaretPosition()
Returns the caret position. This method returns -1 because JLabel don't have a caret.

Specified by:
getCaretPosition in interface AccessibleText
Returns:
the caret position

getCharCount

public int getCharCount()
Returns the number of characters that are displayed by the JLabel.

Specified by:
getCharCount in interface AccessibleText
Returns:
the number of characters that are displayed by the JLabel

getCharacterBounds

public Rectangle getCharacterBounds(int index)
Returns the bounding box of the character at the specified index.

Specified by:
getCharacterBounds in interface AccessibleText
Parameters:
index - the index of the character that we return the bounds for
Returns:
the bounding box of the character at the specified index

getIndexAtPoint

public int getIndexAtPoint(Point point)
Returns the index of the character that is located at the specified point.

Specified by:
getIndexAtPoint in interface AccessibleText
Parameters:
point - the location that we lookup the character for
Returns:
the index of the character that is located at the specified point