Class JSlider.AccessibleJSlider

java.lang.Object

javax.accessibility.AccessibleContext

java.awt.Component.AccessibleAWTComponent

java.awt.Container.AccessibleAWTContainer

javax.swing.JComponent.AccessibleJComponent

javax.swing.JSlider.AccessibleJSlider

All Implemented Interfaces:

Serializable, EventListener, AccessibleAction, AccessibleComponent, AccessibleExtendedComponent, AccessibleValue, ChangeListener

Enclosing class:

JSlider

protected class JSlider.AccessibleJSlider
extends JComponent.AccessibleJComponent
implements AccessibleValue, ChangeListener, AccessibleAction

This class implements accessibility support for the JSlider class. It provides an implementation of the Java Accessibility API appropriate to slider 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 has been added to the java.beans package. Please see XMLEncoder.

Since:

1.2

Nested Class Summary

Nested classes/interfaces declared in class javax.swing.JComponent.AccessibleJComponent

JComponent.AccessibleJComponent.AccessibleContainerHandler, JComponent.AccessibleJComponent.AccessibleFocusHandler

Nested classes/interfaces declared in class java.awt.Component.AccessibleAWTComponent

Component.AccessibleAWTComponent.AccessibleAWTComponentHandler, Component.AccessibleAWTComponent.AccessibleAWTFocusHandler

Field Summary

Fields declared in class javax.swing.JComponent.AccessibleJComponent

accessibleFocusHandler

Fields declared in class java.awt.Container.AccessibleAWTContainer

accessibleContainerHandler

Fields declared in class java.awt.Component.AccessibleAWTComponent

accessibleAWTComponentHandler, accessibleAWTFocusHandler

Fields declared in 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 declared in interface javax.accessibility.AccessibleAction

CLICK, DECREMENT, INCREMENT, TOGGLE_EXPAND, TOGGLE_POPUP

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AccessibleJSlider()	constructs an AccessibleJSlider

Method Summary

Modifier and Type	Method	Description
boolean	doAccessibleAction(int i)	Performs the specified Action on the object
AccessibleAction	getAccessibleAction()	Gets the AccessibleAction associated with this object that supports one or more actions.
int	getAccessibleActionCount()	Returns the number of accessible actions available in this object If there are more than one, the first one is considered the "default" action of the object.
String	getAccessibleActionDescription(int i)	Returns a description of the specified action of the object.
AccessibleRole	getAccessibleRole()	Get the role of this object.
AccessibleStateSet	getAccessibleStateSet()	Get the state set of this object.
AccessibleValue	getAccessibleValue()	Get the AccessibleValue associated with this object.
Number	getCurrentAccessibleValue()	Get the accessible value of this object.
Number	getMaximumAccessibleValue()	Get the maximum accessible value of this object.
Number	getMinimumAccessibleValue()	Get the minimum accessible value of this object.
boolean	setCurrentAccessibleValue(Number n)	Set the value of this object as a Number.
void	stateChanged(ChangeEvent e)	Invoked when the target of the listener has changed its state.

Methods declared in class javax.swing.JComponent.AccessibleJComponent

addPropertyChangeListener, getAccessibleChild, getAccessibleChildrenCount, getAccessibleDescription, getAccessibleKeyBinding, getAccessibleName, getBorderTitle, getTitledBorderText, getToolTipText, removePropertyChangeListener

Methods declared in class java.awt.Container.AccessibleAWTContainer

getAccessibleAt

Methods declared in 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 declared in class javax.accessibility.AccessibleContext

firePropertyChange, getAccessibleEditableText, getAccessibleIcon, getAccessibleRelationSet, getAccessibleSelection, getAccessibleTable, getAccessibleText, setAccessibleDescription, setAccessibleName, setAccessibleParent

Methods declared in class java.lang.Object

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

Methods declared in 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 Details

AccessibleJSlider

protected AccessibleJSlider()

constructs an AccessibleJSlider

Method Details

getAccessibleStateSet

public 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

stateChanged

public void stateChanged(ChangeEvent e)

Invoked when the target of the listener has changed its state.

Specified by:

stateChanged in interface ChangeListener

Parameters:

e - a ChangeEvent object. Must not be null

Throws:

NullPointerException - if the parameter is null

Since:

16

getAccessibleRole

public AccessibleRole getAccessibleRole()

Get the role of this object.

Overrides:

getAccessibleRole in class JComponent.AccessibleJComponent

Returns:

an instance of AccessibleRole describing the role of the object

See Also:

• AccessibleRole

getAccessibleValue

public 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.

Overrides:

getAccessibleValue in class AccessibleContext

Returns:

this object

See Also:

• AccessibleValue

getCurrentAccessibleValue

public Number getCurrentAccessibleValue()

Get the accessible value of this object.

Specified by:

getCurrentAccessibleValue in interface AccessibleValue

Returns:

The current value of this object.

See Also:

• AccessibleValue.setCurrentAccessibleValue(java.lang.Number)

setCurrentAccessibleValue

public boolean setCurrentAccessibleValue(Number n)

Set the value of this object as a Number.

Specified by:

setCurrentAccessibleValue in interface AccessibleValue

Parameters:

n - the number to use for the value

Returns:

True if the value was set.

See Also:

• AccessibleValue.getCurrentAccessibleValue()

getMinimumAccessibleValue

public Number getMinimumAccessibleValue()

Get the minimum accessible value of this object.

Specified by:

getMinimumAccessibleValue in interface AccessibleValue

Returns:

The minimum value of this object.

See Also:

• AccessibleValue.getMaximumAccessibleValue()

getMaximumAccessibleValue

public Number getMaximumAccessibleValue()

Get the maximum accessible value of this object.

Specified by:

getMaximumAccessibleValue in interface AccessibleValue

Returns:

The maximum value of this object.

See Also:

• AccessibleValue.getMinimumAccessibleValue()

getAccessibleAction

public AccessibleAction getAccessibleAction()

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

getAccessibleActionCount

public int getAccessibleActionCount()

Returns the number of accessible actions available in this object If there are more than one, the first one is considered the "default" action of the object. Two actions are supported: AccessibleAction.INCREMENT which increments the slider value and AccessibleAction.DECREMENT which decrements the slider value

Specified by:

getAccessibleActionCount in interface AccessibleAction

Returns:

the zero-based number of Actions in this object

Since:

17

getAccessibleActionDescription

public String getAccessibleActionDescription(int i)

Returns a description of the specified action of the object.

Specified by:

getAccessibleActionDescription in interface AccessibleAction

Parameters:

i - zero-based index of the actions

Returns:

a String description of the action

Since:

17

See Also:

• getAccessibleActionCount()

doAccessibleAction

public boolean doAccessibleAction(int i)

Performs the specified Action on the object

Specified by:

doAccessibleAction in interface AccessibleAction

Parameters:

i - zero-based index of actions. The first action (index 0) is AccessibleAction.INCREMENT and the second action (index 1) is AccessibleAction.DECREMENT.

Returns:

true if the action was performed, otherwise false

Since:

17

See Also:

• getAccessibleActionCount()