Class Scrollbar.AccessibleAWTScrollBar

java.awt.Scrollbar.AccessibleAWTScrollBar

All Implemented Interfaces:: Serializable, AccessibleComponent, AccessibleValue

Enclosing class:: Scrollbar

protected class Scrollbar.AccessibleAWTScrollBar extends Component.AccessibleAWTComponent implements AccessibleValue

This class implements accessibility support for the Scrollbar class. It provides an implementation of the Java Accessibility API appropriate to scrollbar user-interface elements.

Since:

1.3

See Also:

Nested Class Summary

Nested classes/interfaces declared in class Component.AccessibleAWTComponent

Component.AccessibleAWTComponent.AccessibleAWTComponentHandler, Component.AccessibleAWTComponent.AccessibleAWTFocusHandler

Modifier and Type	Class	Description
`protected class`	`Component.AccessibleAWTComponent.AccessibleAWTComponentHandler`	Fire PropertyChange listener, if one is registered, when shown/hidden..
`protected class`	`Component.AccessibleAWTComponent.AccessibleAWTFocusHandler`	Fire PropertyChange listener, if one is registered, when focus events happen

Field Summary

Fields declared in class Component.AccessibleAWTComponent

accessibleAWTComponentHandler, accessibleAWTFocusHandler

Modifier and Type	Field	Description
`protected ComponentListener`	`accessibleAWTComponentHandler`	A component listener to track show/hide/resize events and convert them to PropertyChange events.
`protected FocusListener`	`accessibleAWTFocusHandler`	A listener to track focus events and convert them to PropertyChange events.

Fields declared in class 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

Modifier and Type	Field	Description
`static final String`	`ACCESSIBLE_ACTION_PROPERTY`	Constant used to indicate that the supported set of actions has changed.
`static final String`	`ACCESSIBLE_ACTIVE_DESCENDANT_PROPERTY`	Constant used to determine when the active descendant of a component has changed.
`static final String`	`ACCESSIBLE_CARET_PROPERTY`	Constant used to determine when the `accessibleText` caret has changed.
`static final String`	`ACCESSIBLE_CHILD_PROPERTY`	Constant used to determine when `Accessible` children are added/removed from the object.
`static final String`	`ACCESSIBLE_COMPONENT_BOUNDS_CHANGED`	`PropertyChangeEvent` which indicates that a change has occurred in a component's bounds.
`static final String`	`ACCESSIBLE_DESCRIPTION_PROPERTY`	Constant used to determine when the `AccessibleContext.accessibleDescription` property has changed.
`static final String`	`ACCESSIBLE_HYPERTEXT_OFFSET`	Constant used to indicate that a hypertext element has received focus.
`static final String`	`ACCESSIBLE_INVALIDATE_CHILDREN`	`PropertyChangeEvent` which indicates that a significant change has occurred to the children of a component like a tree or text.
`static final String`	`ACCESSIBLE_NAME_PROPERTY`	Constant used to determine when the `AccessibleContext.accessibleName` property has changed.
`static final String`	`ACCESSIBLE_SELECTION_PROPERTY`	Constant used to determine when the `accessibleSelection` has changed.
`static final String`	`ACCESSIBLE_STATE_PROPERTY`	Constant used to determine when the `accessibleStateSet` property has changed.
`static final String`	`ACCESSIBLE_TABLE_CAPTION_CHANGED`	Constant used to indicate that the table caption has changed.
`static final String`	`ACCESSIBLE_TABLE_COLUMN_DESCRIPTION_CHANGED`	Constant used to indicate that the column description has changed.
`static final String`	`ACCESSIBLE_TABLE_COLUMN_HEADER_CHANGED`	Constant used to indicate that the column header has changed.
`static final String`	`ACCESSIBLE_TABLE_MODEL_CHANGED`	Constant used to indicate that table data has changed.
`static final String`	`ACCESSIBLE_TABLE_ROW_DESCRIPTION_CHANGED`	Constant used to indicate that the row description has changed.
`static final String`	`ACCESSIBLE_TABLE_ROW_HEADER_CHANGED`	Constant used to indicate that the row header has changed.
`static final String`	`ACCESSIBLE_TABLE_SUMMARY_CHANGED`	Constant used to indicate that the table summary has changed.
`static final String`	`ACCESSIBLE_TEXT_ATTRIBUTES_CHANGED`	`PropertyChangeEvent` which indicates that text attributes have changed.
`static final String`	`ACCESSIBLE_TEXT_PROPERTY`	`PropertyChangeEvent` which indicates that text has changed.
`static final String`	`ACCESSIBLE_VALUE_PROPERTY`	Constant used to determine when the `accessibleValue` property has changed.
`static final String`	`ACCESSIBLE_VISIBLE_DATA_PROPERTY`	Constant used to determine when the visual appearance of the object has changed.
`protected String`	`accessibleDescription`	A localized String containing the description of the object.
`protected String`	`accessibleName`	A localized String containing the name of the object.
`protected Accessible`	`accessibleParent`	The accessible parent of this object.

Constructor Summary

AccessibleAWTScrollBar()

Modifier	Constructor	Description
`protected`	Constructs an `AccessibleAWTScrollBar`.

Method Summary

Modifier and Type	Method	Description
`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.

Methods declared in class Component.AccessibleAWTComponent

addFocusListener, addPropertyChangeListener, contains, getAccessibleAt, getAccessibleChild, getAccessibleChildrenCount, getAccessibleComponent, getAccessibleDescription, getAccessibleIndexInParent, getAccessibleName, getAccessibleParent, getBackground, getBounds, getCursor, getFont, getFontMetrics, getForeground, getLocale, getLocation, getLocationOnScreen, getSize, isEnabled, isFocusTraversable, isShowing, isVisible, removeFocusListener, removePropertyChangeListener, requestFocus, setBackground, setBounds, setCursor, setEnabled, setFont, setForeground, setLocation, setSize, setVisible

Modifier and Type	Method	Description
`void`	`addFocusListener(FocusListener l)`	Adds the specified focus listener to receive focus events from this component.
`void`	`addPropertyChangeListener(PropertyChangeListener listener)`	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.
`Accessible`	`getAccessibleAt(Point p)`	Returns the `Accessible` child, if one exists, contained at the local coordinate `Point`.
`Accessible`	`getAccessibleChild(int i)`	Returns the nth `Accessible` child of the object.
`int`	`getAccessibleChildrenCount()`	Returns the number of accessible children in the object.
`AccessibleComponent`	`getAccessibleComponent()`	Gets the `AccessibleComponent` associated with this object if one exists.
`String`	`getAccessibleDescription()`	Gets the accessible description of this object.
`int`	`getAccessibleIndexInParent()`	Gets the index of this object in its accessible parent.
`String`	`getAccessibleName()`	Gets the accessible name of this object.
`Accessible`	`getAccessibleParent()`	Gets the `Accessible` parent of this object.
`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()`	Returns the locale of this object.
`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 listener)`	Remove a PropertyChangeListener from the listener list.
`void`	`requestFocus()`	Requests focus for 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 cursor)`	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 declared in class AccessibleContext

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

Modifier and Type	Method	Description
`void`	`firePropertyChange(String propertyName, Object oldValue, Object newValue)`	Support for reporting bound property changes.
`AccessibleAction`	`getAccessibleAction()`	Gets the `AccessibleAction` associated with this object that supports one or more actions.
`AccessibleEditableText`	`getAccessibleEditableText()`	Gets the `AccessibleEditableText` associated with this object presenting editable text on the display.
`AccessibleIcon[]`	`getAccessibleIcon()`	Gets the `AccessibleIcons` associated with an object that has one or more associated icons.
`AccessibleRelationSet`	`getAccessibleRelationSet()`	Gets the `AccessibleRelationSet` associated with an object.
`AccessibleSelection`	`getAccessibleSelection()`	Gets the `AccessibleSelection` associated with this object which allows its `Accessible` children to be selected.
`AccessibleTable`	`getAccessibleTable()`	Gets the `AccessibleTable` associated with an object.
`AccessibleText`	`getAccessibleText()`	Gets the `AccessibleText` associated with this object presenting text on the display.
`void`	`setAccessibleDescription(String s)`	Sets the accessible description of this object.
`void`	`setAccessibleName(String s)`	Sets the localized accessible name of this object.
`void`	`setAccessibleParent(Accessible a)`	Sets the `Accessible` parent of this object.

Methods declared in class Object

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

Modifier and Type	Method	Description
`protected Object`	`clone()`	Creates and returns a copy of this object.
`boolean`	`equals(Object obj)`	Indicates whether some other object is "equal to" this one.
`protected void`	`finalize()`	Deprecated, for removal: This API element is subject to removal in a future version. Finalization is deprecated and subject to removal in a future release.
`final Class<?>`	`getClass()`	Returns the runtime class of this `Object`.
`int`	`hashCode()`	Returns a hash code value for this object.
`final void`	`notify()`	Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()`	Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()`	Returns a string representation of the object.
`final void`	`wait()`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted.
`final void`	`wait(long timeoutMillis)`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait(long timeoutMillis, int nanos)`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

Constructor Details

AccessibleAWTScrollBar

protected AccessibleAWTScrollBar()

Constructs an AccessibleAWTScrollBar.

Method Details

getAccessibleStateSet

public AccessibleStateSet getAccessibleStateSet()

Get the state set of this object.

Overrides:

getAccessibleStateSet in class Component.AccessibleAWTComponent

Returns:

an instance of AccessibleState containing the current state of the object

See Also:

getAccessibleRole

public AccessibleRole getAccessibleRole()

Get the role of this object.

Overrides:

getAccessibleRole in class Component.AccessibleAWTComponent

Returns:

an instance of AccessibleRole describing the role of the object

See Also:

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:

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:

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:

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:

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:

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