javax.swing
Class AbstractButton.AccessibleAbstractButton

java.lang.Object
  javax.accessibility.AccessibleContext
      java.awt.Component.AccessibleAWTComponent
          java.awt.Container.AccessibleAWTContainer
              javax.swing.JComponent.AccessibleJComponent
                  javax.swing.AbstractButton.AccessibleAbstractButton

All Implemented Interfaces:

javax.accessibility.AccessibleAction, javax.accessibility.AccessibleComponent, javax.accessibility.AccessibleExtendedComponent, javax.accessibility.AccessibleText, javax.accessibility.AccessibleValue, Serializable

Direct Known Subclasses:

JButton.AccessibleJButton, JMenuItem.AccessibleJMenuItem, JToggleButton.AccessibleJToggleButton

Enclosing class:

AbstractButton

protected abstract class AbstractButton.AccessibleAbstractButton

extends JComponent.AccessibleJComponent

implements javax.accessibility.AccessibleAction, javax.accessibility.AccessibleValue, javax.accessibility.AccessibleText, javax.accessibility.AccessibleExtendedComponent

This class implements accessibility support for the AbstractButton class. It provides an implementation of the Java Accessibility API appropriate to button and menu item user-interface elements.

Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeans^TM has been added to the java.beans package. Please see XMLEncoder.

See Also:

Serialized Form

Nested Class Summary

(package private) class

AbstractButton.AccessibleAbstractButton.ButtonKeyBinding

Nested classes inherited from class javax.swing.JComponent.AccessibleJComponent

JComponent.AccessibleJComponent.AccessibleContainerHandler, JComponent.AccessibleJComponent.AccessibleFocusHandler

Nested classes 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_DESCRIPTION_PROPERTY, ACCESSIBLE_HYPERTEXT_OFFSET, 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_PROPERTY, ACCESSIBLE_VALUE_PROPERTY, ACCESSIBLE_VISIBLE_DATA_PROPERTY, accessibleDescription, accessibleName, accessibleParent

Fields inherited from interface javax.accessibility.AccessibleText

CHARACTER, SENTENCE, WORD

Constructor Summary

protected

AbstractButton.AccessibleAbstractButton()

Method Summary

boolean	doAccessibleAction(int i) Perform the specified Action on the object
javax.accessibility.AccessibleAction	getAccessibleAction() Get the AccessibleAction associated with this object.
int	getAccessibleActionCount() Returns the number of Actions available in this object.
String	getAccessibleActionDescription(int i) Return a description of the specified action of the object.
(package private) javax.accessibility.AccessibleExtendedComponent	getAccessibleExtendedComponent() Returns the AccessibleExtendedComponent
javax.accessibility.AccessibleIcon[]	getAccessibleIcon() Get the AccessibleIcons associated with this object if one or more exist.
javax.accessibility.AccessibleKeyBinding	getAccessibleKeyBinding() Returns key bindings associated with this object
String	getAccessibleName() Returns the accessible name of this object.
javax.accessibility.AccessibleRelationSet	getAccessibleRelationSet() Get the AccessibleRelationSet associated with this object if one exists.
javax.accessibility.AccessibleStateSet	getAccessibleStateSet() Get the state set of this object.
javax.accessibility.AccessibleText	getAccessibleText()
javax.accessibility.AccessibleValue	getAccessibleValue() Get the AccessibleValue associated with this object.
String	getAfterIndex(int part, int index) Returns the String after a given index.
String	getAtIndex(int part, int index) Returns the String at a given index.
String	getBeforeIndex(int part, int index) Returns the String before a given index.
int	getCaretPosition() Return the zero-based offset of the caret.
AttributeSet	getCharacterAttribute(int i) Return the AttributeSet for a given character at a given index
Rectangle	getCharacterBounds(int i) Determine the bounding box of the character at the given index into the string.
int	getCharCount() Return the number of characters (valid indicies)
Number	getCurrentAccessibleValue() Get the value of this object as a Number.
int	getIndexAtPoint(Point p) Given a point in local coordinates, return the zero-based index of the character under that Point.
Number	getMaximumAccessibleValue() Get the maximum value of this object as a Number.
Number	getMinimumAccessibleValue() Get the minimum value of this object as a Number.
String	getSelectedText() Returns the portion of the text that is selected.
int	getSelectionEnd() Returns the end offset within the selected text.
int	getSelectionStart() Returns the start offset within the selected text.
private String	getText(int offset, int length)
private Rectangle	getTextRectangle()
String	getTitledBorderText() Returns the titled border text
String	getToolTipText() Returns the tool tip text
boolean	setCurrentAccessibleValue(Number n) Set the value of this object as a Number.

Methods inherited from class javax.swing.JComponent.AccessibleJComponent

addPropertyChangeListener, getAccessibleChild, getAccessibleChildrenCount, getAccessibleDescription, getAccessibleRole, getBorderTitle, 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, getAccessibleEditableText, getAccessibleSelection, getAccessibleTable, 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.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

AbstractButton.AccessibleAbstractButton

protected AbstractButton.AccessibleAbstractButton()

Method Detail

getAccessibleName

public String getAccessibleName()

Returns the accessible name of this object.

Overrides:

getAccessibleName in class JComponent.AccessibleJComponent

Returns:

the localized name of the object -- can be null if this object does not have a name

See Also:

AccessibleContext.setAccessibleName(java.lang.String)

getAccessibleIcon

public javax.accessibility.AccessibleIcon[] getAccessibleIcon()

Get the AccessibleIcons associated with this object if one or more exist. Otherwise return null.

getAccessibleStateSet

public javax.accessibility.AccessibleStateSet getAccessibleStateSet()

Get the state set of this object.

Overrides:

getAccessibleStateSet in class JComponent.AccessibleJComponent

Returns:

an instance of AccessibleState containing the current state of the object

See Also:

AccessibleState

getAccessibleRelationSet

public javax.accessibility.AccessibleRelationSet getAccessibleRelationSet()

Get the AccessibleRelationSet associated with this object if one exists. Otherwise return null.

See Also:

AccessibleRelation

getAccessibleAction

public javax.accessibility.AccessibleAction getAccessibleAction()

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

Returns:

this object

getAccessibleValue

public javax.accessibility.AccessibleValue getAccessibleValue()

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

Returns:

this object

getAccessibleActionCount

public int getAccessibleActionCount()

Returns the number of Actions available in this object. The default behavior of a button is to have one action - toggle the button.

Specified by:

getAccessibleActionCount in interface javax.accessibility.AccessibleAction

Returns:

1, the number of Actions in this object

getAccessibleActionDescription

public String getAccessibleActionDescription(int i)

Return a description of the specified action of the object.

Specified by:

getAccessibleActionDescription in interface javax.accessibility.AccessibleAction

Parameters:

i - zero-based index of the actions

doAccessibleAction

public boolean doAccessibleAction(int i)

Perform the specified Action on the object

Specified by:

doAccessibleAction in interface javax.accessibility.AccessibleAction

Parameters:

i - zero-based index of actions

Returns:

true if the the action was performed; else false.

getCurrentAccessibleValue

public Number getCurrentAccessibleValue()

Get the value of this object as a Number.

Specified by:

getCurrentAccessibleValue in interface javax.accessibility.AccessibleValue

Returns:

An Integer of 0 if this isn't selected or an Integer of 1 if this is selected.

See Also:

AbstractButton.isSelected()

setCurrentAccessibleValue

public boolean setCurrentAccessibleValue(Number n)

Set the value of this object as a Number.

Specified by:

setCurrentAccessibleValue in interface javax.accessibility.AccessibleValue

Returns:

True if the value was set.

getMinimumAccessibleValue

public Number getMinimumAccessibleValue()

Get the minimum value of this object as a Number.

Specified by:

getMinimumAccessibleValue in interface javax.accessibility.AccessibleValue

Returns:

an Integer of 0.

getMaximumAccessibleValue

public Number getMaximumAccessibleValue()

Get the maximum value of this object as a Number.

Specified by:

getMaximumAccessibleValue in interface javax.accessibility.AccessibleValue

Returns:

An Integer of 1.

getAccessibleText

public javax.accessibility.AccessibleText getAccessibleText()

getIndexAtPoint

public int getIndexAtPoint(Point p)

Given a point in local coordinates, return the zero-based index of the character under that Point. If the point is invalid, this method returns -1. Note: the AbstractButton must have a valid size (e.g. have been added to a parent container whose ancestor container is a valid top-level window) for this method to be able to return a meaningful value.

Specified by:

getIndexAtPoint in interface javax.accessibility.AccessibleText

Parameters:

p - the Point in local coordinates

Returns:

the zero-based index of the character under Point p; if Point is invalid returns -1.

getCharacterBounds

public Rectangle getCharacterBounds(int i)

Determine the bounding box of the character at the given index into the string. The bounds are returned in local coordinates. If the index is invalid an empty rectangle is returned. Note: the AbstractButton must have a valid size (e.g. have been added to a parent container whose ancestor container is a valid top-level window) for this method to be able to return a meaningful value.

Specified by:

getCharacterBounds in interface javax.accessibility.AccessibleText

Parameters:

i - the index into the String

Returns:

the screen coordinates of the character's the bounding box, if index is invalid returns an empty rectangle.

getCharCount

public int getCharCount()

Return the number of characters (valid indicies)

Specified by:

getCharCount in interface javax.accessibility.AccessibleText

Returns:

the number of characters

getCaretPosition

public int getCaretPosition()

Return the zero-based offset of the caret. Note: That to the right of the caret will have the same index value as the offset (the caret is between two characters).

Specified by:

getCaretPosition in interface javax.accessibility.AccessibleText

Returns:

the zero-based offset of the caret.

getAtIndex

public String getAtIndex(int part,
                         int index)

Returns the String at a given index.

Specified by:

getAtIndex in interface javax.accessibility.AccessibleText

Parameters:

part - the AccessibleText.CHARACTER, AccessibleText.WORD, or AccessibleText.SENTENCE to retrieve

index - an index within the text >= 0

Returns:

the letter, word, or sentence, null for an invalid index or part

getAfterIndex

public String getAfterIndex(int part,
                            int index)

Returns the String after a given index.

Specified by:

getAfterIndex in interface javax.accessibility.AccessibleText

Parameters:

part - the AccessibleText.CHARACTER, AccessibleText.WORD, or AccessibleText.SENTENCE to retrieve

index - an index within the text >= 0

Returns:

the letter, word, or sentence, null for an invalid index or part

getBeforeIndex

public String getBeforeIndex(int part,
                             int index)

Returns the String before a given index.

Specified by:

getBeforeIndex in interface javax.accessibility.AccessibleText

Parameters:

part - the AccessibleText.CHARACTER, AccessibleText.WORD, or AccessibleText.SENTENCE to retrieve

index - an index within the text >= 0

Returns:

the letter, word, or sentence, null for an invalid index or part

getCharacterAttribute

public AttributeSet getCharacterAttribute(int i)

Return the AttributeSet for a given character at a given index

Specified by:

getCharacterAttribute in interface javax.accessibility.AccessibleText

Parameters:

i - the zero-based index into the text

Returns:

the AttributeSet of the character

getSelectionStart

public int getSelectionStart()

Returns the start offset within the selected text. If there is no selection, but there is a caret, the start and end offsets will be the same.

Specified by:

getSelectionStart in interface javax.accessibility.AccessibleText

Returns:

the index into the text of the start of the selection

getSelectionEnd

public int getSelectionEnd()

Returns the end offset within the selected text. If there is no selection, but there is a caret, the start and end offsets will be the same.

Specified by:

getSelectionEnd in interface javax.accessibility.AccessibleText

Returns:

the index into teh text of the end of the selection

getSelectedText

public String getSelectedText()

Returns the portion of the text that is selected.

Specified by:

getSelectedText in interface javax.accessibility.AccessibleText

Returns:

the String portion of the text that is selected

getText

private String getText(int offset,
                       int length)
                throws BadLocationException

Throws:

BadLocationException

getTextRectangle

private Rectangle getTextRectangle()

getAccessibleExtendedComponent

javax.accessibility.AccessibleExtendedComponent getAccessibleExtendedComponent()

Returns the AccessibleExtendedComponent

Overrides:

getAccessibleExtendedComponent in class JComponent.AccessibleJComponent

Returns:

the AccessibleExtendedComponent

getToolTipText

public String getToolTipText()

Returns the tool tip text

Specified by:

getToolTipText in interface javax.accessibility.AccessibleExtendedComponent

Overrides:

getToolTipText in class JComponent.AccessibleJComponent

Returns:

the tool tip text, if supported, of the object; otherwise, null

getTitledBorderText

public String getTitledBorderText()

Returns the titled border text

Specified by:

getTitledBorderText in interface javax.accessibility.AccessibleExtendedComponent

Overrides:

getTitledBorderText in class JComponent.AccessibleJComponent

Returns:

the titled border text, if supported, of the object; otherwise, null

getAccessibleKeyBinding

public javax.accessibility.AccessibleKeyBinding getAccessibleKeyBinding()

Returns key bindings associated with this object

Specified by:

getAccessibleKeyBinding in interface javax.accessibility.AccessibleExtendedComponent

Overrides:

getAccessibleKeyBinding in class JComponent.AccessibleJComponent

Returns:

the key bindings, if supported, of the object; otherwise, null

See Also:

AccessibleKeyBinding