Class List.AccessibleAWTList.AccessibleAWTListChild
java.lang.Object
javax.accessibility.AccessibleContext
java.awt.Component.AccessibleAWTComponent
java.awt.List.AccessibleAWTList.AccessibleAWTListChild
- All Implemented Interfaces:
Serializable
,Accessible
,AccessibleComponent
- Enclosing class:
List.AccessibleAWTList
protected class List.AccessibleAWTList.AccessibleAWTListChild
extends Component.AccessibleAWTComponent
implements Accessible
This class implements accessibility support for
List children. It provides an implementation of the
Java Accessibility API appropriate to list children
user-interface elements.
- Since:
- 1.3
- See Also:
-
Nested Class Summary
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 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
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Constructor Summary
ConstructorDescriptionAccessibleAWTListChild
(List parent, int indexInParent) Constructs newAccessibleAWTListChild
with the given parentList
and 0-based index of this object in the parent. -
Method Summary
Modifier and TypeMethodDescriptionvoid
Adds the specified focus listener to receive focus events from this component.boolean
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.Returns theAccessible
child, if one exists, contained at the local coordinatePoint
.getAccessibleChild
(int i) Return the specified Accessible child of the object.int
Returns the number of accessible children of the object.Gets the AccessibleContext for this object.int
Get the 0-based index of this object in its accessible parent.Get the role of this object.Get the state set of this object.Get the background color of this object.Gets the bounds of this object in the form of a Rectangle object.Get the Cursor of this object.getFont()
Get the Font of this object.Get the FontMetrics of this object.Get the foreground color of this object.Gets the locale of the component.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.Returns the location of the object on the screen.getSize()
Returns the size of this object in the form of a Dimension object.boolean
Determine if the object is enabled.boolean
Returns whether this object can accept focus or not.boolean
Determine if the object is showing.boolean
Determine if the object is visible.void
Removes the specified focus listener so it no longer receives focus events from this component.void
Requests focus for this object.void
Set the background color of this object.void
Sets the bounds of this object in the form of a Rectangle object.void
Set the Cursor of this object.void
setEnabled
(boolean b) Set the enabled state of the object.void
Set the Font of this object.void
Set the foreground color of this object.void
setLocation
(Point p) Sets the location of the object relative to the parent.void
Resizes this object so that it has width and height.void
setVisible
(boolean b) Set the visible state of the object.Methods declared in class java.awt.Component.AccessibleAWTComponent
addPropertyChangeListener, getAccessibleComponent, getAccessibleDescription, getAccessibleName, getAccessibleParent, removePropertyChangeListener
Methods declared in class javax.accessibility.AccessibleContext
firePropertyChange, getAccessibleAction, getAccessibleEditableText, getAccessibleIcon, getAccessibleRelationSet, getAccessibleSelection, getAccessibleTable, getAccessibleText, getAccessibleValue, setAccessibleDescription, setAccessibleName, setAccessibleParent
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Constructor Details
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AccessibleAWTListChild
Constructs newAccessibleAWTListChild
with the given parentList
and 0-based index of this object in the parent.- Parameters:
parent
- the parentList
indexInParent
- the index in the parent
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Method Details
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getAccessibleContext
Gets the AccessibleContext for this object. In the implementation of the Java Accessibility API for this class, return this object, which acts as its own AccessibleContext.- Specified by:
getAccessibleContext
in interfaceAccessible
- Returns:
- this object
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getAccessibleRole
Get the role of this object.- Overrides:
getAccessibleRole
in classComponent.AccessibleAWTComponent
- Returns:
- an instance of AccessibleRole describing the role of the object
- See Also:
-
getAccessibleStateSet
Get the state set of this object. The AccessibleStateSet of an object is composed of a set of unique AccessibleState's. A change in the AccessibleStateSet of an object will cause a PropertyChangeEvent to be fired for the ACCESSIBLE_STATE_PROPERTY property.- Overrides:
getAccessibleStateSet
in classComponent.AccessibleAWTComponent
- Returns:
- an instance of AccessibleStateSet containing the current state set of the object
- See Also:
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getLocale
Gets the locale of the component. If the component does not have a locale, then the locale of its parent is returned.- Overrides:
getLocale
in classComponent.AccessibleAWTComponent
- Returns:
- This component's locale. If this component does not have a locale, the locale of its parent is returned.
- Throws:
IllegalComponentStateException
- If the Component does not have its own locale and has not yet been added to a containment hierarchy such that the locale can be determined from the containing parent.
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getAccessibleIndexInParent
public int getAccessibleIndexInParent()Get the 0-based index of this object in its accessible parent.- Overrides:
getAccessibleIndexInParent
in classComponent.AccessibleAWTComponent
- Returns:
- the 0-based index of this object in its parent; -1 if this object does not have an accessible parent.
- See Also:
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getAccessibleChildrenCount
public int getAccessibleChildrenCount()Returns the number of accessible children of the object.- Overrides:
getAccessibleChildrenCount
in classComponent.AccessibleAWTComponent
- Returns:
- the number of accessible children of the object.
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getAccessibleChild
Return the specified Accessible child of the object. The Accessible children of an Accessible object are zero-based, so the first child of an Accessible child is at index 0, the second child is at index 1, and so on.- Overrides:
getAccessibleChild
in classComponent.AccessibleAWTComponent
- Parameters:
i
- zero-based index of child- Returns:
- the Accessible child of the object
- See Also:
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getBackground
Get the background color of this object.- Specified by:
getBackground
in interfaceAccessibleComponent
- Overrides:
getBackground
in classComponent.AccessibleAWTComponent
- Returns:
- the background color, if supported, of the object; otherwise, null
- See Also:
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setBackground
Set the background color of this object.- Specified by:
setBackground
in interfaceAccessibleComponent
- Overrides:
setBackground
in classComponent.AccessibleAWTComponent
- Parameters:
c
- the new Color for the background- See Also:
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getForeground
Get the foreground color of this object.- Specified by:
getForeground
in interfaceAccessibleComponent
- Overrides:
getForeground
in classComponent.AccessibleAWTComponent
- Returns:
- the foreground color, if supported, of the object; otherwise, null
- See Also:
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setForeground
Set the foreground color of this object.- Specified by:
setForeground
in interfaceAccessibleComponent
- Overrides:
setForeground
in classComponent.AccessibleAWTComponent
- Parameters:
c
- the new Color for the foreground- See Also:
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getCursor
Get the Cursor of this object.- Specified by:
getCursor
in interfaceAccessibleComponent
- Overrides:
getCursor
in classComponent.AccessibleAWTComponent
- Returns:
- the Cursor, if supported, of the object; otherwise, null
- See Also:
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setCursor
Set the Cursor of this object.The method may have no visual effect if the Java platform implementation and/or the native system do not support changing the mouse cursor shape.
- Specified by:
setCursor
in interfaceAccessibleComponent
- Overrides:
setCursor
in classComponent.AccessibleAWTComponent
- Parameters:
cursor
- the new Cursor for the object- See Also:
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getFont
Get the Font of this object.- Specified by:
getFont
in interfaceAccessibleComponent
- Overrides:
getFont
in classComponent.AccessibleAWTComponent
- Returns:
- the Font, if supported, for the object; otherwise, null
- See Also:
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setFont
Set the Font of this object.- Specified by:
setFont
in interfaceAccessibleComponent
- Overrides:
setFont
in classComponent.AccessibleAWTComponent
- Parameters:
f
- the new Font for the object- See Also:
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getFontMetrics
Get the FontMetrics of this object.- Specified by:
getFontMetrics
in interfaceAccessibleComponent
- Overrides:
getFontMetrics
in classComponent.AccessibleAWTComponent
- Parameters:
f
- the Font- Returns:
- the FontMetrics, if supported, the object; otherwise, null
- See Also:
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isEnabled
public boolean isEnabled()Determine if the object is enabled. Objects that are enabled will also have the AccessibleState.ENABLED state set in their AccessibleStateSet.- Specified by:
isEnabled
in interfaceAccessibleComponent
- Overrides:
isEnabled
in classComponent.AccessibleAWTComponent
- Returns:
- true if object is enabled; otherwise, false
- See Also:
-
setEnabled
public void setEnabled(boolean b) Set the enabled state of the object.- Specified by:
setEnabled
in interfaceAccessibleComponent
- Overrides:
setEnabled
in classComponent.AccessibleAWTComponent
- Parameters:
b
- if true, enables this object; otherwise, disables it- See Also:
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isVisible
public boolean isVisible()Determine if the object is visible. Note: this means that the object intends to be visible; however, it may not be showing on the screen because one of the objects that this object is contained by is currently not visible. To determine if an object is showing on the screen, use isShowing().Objects that are visible will also have the AccessibleState.VISIBLE state set in their AccessibleStateSet.
- Specified by:
isVisible
in interfaceAccessibleComponent
- Overrides:
isVisible
in classComponent.AccessibleAWTComponent
- Returns:
- true if object is visible; otherwise, false
- See Also:
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setVisible
public void setVisible(boolean b) Set the visible state of the object.- Specified by:
setVisible
in interfaceAccessibleComponent
- Overrides:
setVisible
in classComponent.AccessibleAWTComponent
- Parameters:
b
- if true, shows this object; otherwise, hides it- See Also:
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isShowing
public boolean isShowing()Determine if the object is showing. This is determined by checking the visibility of the object and visibility of the object ancestors. Note: this will return true even if the object is obscured by another (for example, it to object is underneath a menu that was pulled down).- Specified by:
isShowing
in interfaceAccessibleComponent
- Overrides:
isShowing
in classComponent.AccessibleAWTComponent
- Returns:
- true if object is showing; otherwise, false
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contains
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.- Specified by:
contains
in interfaceAccessibleComponent
- Overrides:
contains
in classComponent.AccessibleAWTComponent
- Parameters:
p
- the Point relative to the coordinate system of the object- Returns:
- true if object contains Point; otherwise false
- See Also:
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getLocationOnScreen
Returns the location of the object on the screen.- Specified by:
getLocationOnScreen
in interfaceAccessibleComponent
- Overrides:
getLocationOnScreen
in classComponent.AccessibleAWTComponent
- Returns:
- location of object on screen; null if this object is not on the screen
- See Also:
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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.- Specified by:
getLocation
in interfaceAccessibleComponent
- Overrides:
getLocation
in classComponent.AccessibleAWTComponent
- Returns:
- An instance of Point representing the top-left corner of the object's bounds in the coordinate space of the screen; null if this object or its parent are not on the screen
- See Also:
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setLocation
Sets the location of the object relative to the parent.- Specified by:
setLocation
in interfaceAccessibleComponent
- Overrides:
setLocation
in classComponent.AccessibleAWTComponent
- Parameters:
p
- the new position for the top-left corner- See Also:
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getBounds
Gets the bounds of this object in the form of a Rectangle object. The bounds specify this object's width, height, and location relative to its parent.- Specified by:
getBounds
in interfaceAccessibleComponent
- Overrides:
getBounds
in classComponent.AccessibleAWTComponent
- Returns:
- A rectangle indicating this component's bounds; null if this object is not on the screen.
- See Also:
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setBounds
Sets the bounds of this object in the form of a Rectangle object. The bounds specify this object's width, height, and location relative to its parent.- Specified by:
setBounds
in interfaceAccessibleComponent
- Overrides:
setBounds
in classComponent.AccessibleAWTComponent
- Parameters:
r
- rectangle indicating this component's bounds- See Also:
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getSize
Returns the size of this object in the form of a Dimension object. The height field of the Dimension object contains this object's height, and the width field of the Dimension object contains this object's width.- Specified by:
getSize
in interfaceAccessibleComponent
- Overrides:
getSize
in classComponent.AccessibleAWTComponent
- Returns:
- A Dimension object that indicates the size of this component; null if this object is not on the screen
- See Also:
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setSize
Resizes this object so that it has width and height.- Specified by:
setSize
in interfaceAccessibleComponent
- Overrides:
setSize
in classComponent.AccessibleAWTComponent
- Parameters:
d
- The dimension specifying the new size of the object.- See Also:
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getAccessibleAt
Returns theAccessible
child, if one exists, contained at the local coordinatePoint
.- Specified by:
getAccessibleAt
in interfaceAccessibleComponent
- Overrides:
getAccessibleAt
in classComponent.AccessibleAWTComponent
- Parameters:
p
- the point relative to the coordinate system of this object- Returns:
- the
Accessible
, if it exists, at the specified location; otherwisenull
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isFocusTraversable
public boolean isFocusTraversable()Returns whether this object can accept focus or not. Objects that can accept focus will also have theAccessibleState.FOCUSABLE
state set in theirAccessibleStateSet
.- Specified by:
isFocusTraversable
in interfaceAccessibleComponent
- Overrides:
isFocusTraversable
in classComponent.AccessibleAWTComponent
- Returns:
- true if object can accept focus; otherwise false
- See Also:
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requestFocus
public void requestFocus()Requests focus for this object. If this object cannot accept focus, nothing will happen. Otherwise, the object will attempt to take focus.- Specified by:
requestFocus
in interfaceAccessibleComponent
- Overrides:
requestFocus
in classComponent.AccessibleAWTComponent
- See Also:
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addFocusListener
Adds the specified focus listener to receive focus events from this component.- Specified by:
addFocusListener
in interfaceAccessibleComponent
- Overrides:
addFocusListener
in classComponent.AccessibleAWTComponent
- Parameters:
l
- the focus listener- See Also:
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removeFocusListener
Removes the specified focus listener so it no longer receives focus events from this component.- Specified by:
removeFocusListener
in interfaceAccessibleComponent
- Overrides:
removeFocusListener
in classComponent.AccessibleAWTComponent
- Parameters:
l
- the focus listener- See Also:
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