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
.
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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
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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
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Constructor Summary
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Method Summary
Modifier and TypeMethodDescriptionboolean
doAccessibleAction
(int i) Performs the specified Action on the objectGets the AccessibleAction associated with this object that supports one or more actions.int
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.Returns a description of the specified action of the object.Get the role of this object.Get the state set of this object.Get the AccessibleValue associated with this object.Get the accessible value of this object.Get the maximum accessible value of this object.Get the minimum accessible value of this object.boolean
Set the value of this object as a Number.void
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
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Constructor Details
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AccessibleJSlider
protected AccessibleJSlider()constructs an AccessibleJSlider
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Method Details
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getAccessibleStateSet
Get the state set of this object.- Overrides:
getAccessibleStateSet
in classJComponent.AccessibleJComponent
- Returns:
- an instance of AccessibleState containing the current state of the object
- See Also:
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stateChanged
Invoked when the target of the listener has changed its state.- Specified by:
stateChanged
in interfaceChangeListener
- Parameters:
e
- aChangeEvent
object. Must not benull
- Throws:
NullPointerException
- if the parameter isnull
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getAccessibleRole
Get the role of this object.- Overrides:
getAccessibleRole
in classJComponent.AccessibleJComponent
- Returns:
- an instance of AccessibleRole describing the role of the object
- See Also:
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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 classAccessibleContext
- Returns:
- this object
- See Also:
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getCurrentAccessibleValue
Get the accessible value of this object.- Specified by:
getCurrentAccessibleValue
in interfaceAccessibleValue
- Returns:
- The current value of this object.
- See Also:
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setCurrentAccessibleValue
Set the value of this object as a Number.- Specified by:
setCurrentAccessibleValue
in interfaceAccessibleValue
- Parameters:
n
- the number to use for the value- Returns:
- True if the value was set.
- See Also:
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getMinimumAccessibleValue
Get the minimum accessible value of this object.- Specified by:
getMinimumAccessibleValue
in interfaceAccessibleValue
- Returns:
- The minimum value of this object.
- See Also:
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getMaximumAccessibleValue
Get the maximum accessible value of this object.- Specified by:
getMaximumAccessibleValue
in interfaceAccessibleValue
- Returns:
- The maximum value of this object.
- See Also:
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getAccessibleAction
Gets the AccessibleAction associated with this object that supports one or more actions.- Overrides:
getAccessibleAction
in classAccessibleContext
- Returns:
- AccessibleAction if supported by object; else return null
- See Also:
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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 interfaceAccessibleAction
- Returns:
- the zero-based number of Actions in this object
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getAccessibleActionDescription
Returns a description of the specified action of the object.- Specified by:
getAccessibleActionDescription
in interfaceAccessibleAction
- Parameters:
i
- zero-based index of the actions- Returns:
- a String description of the action
- See Also:
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doAccessibleAction
public boolean doAccessibleAction(int i) Performs the specified Action on the object- Specified by:
doAccessibleAction
in interfaceAccessibleAction
- 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
- See Also:
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