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:
- Serialized Form
Nested Class Summary
Nested classes/interfaces declared in class java.awt.Component.AccessibleAWTComponent
Component.AccessibleAWTComponent.AccessibleAWTComponentHandler, Component.AccessibleAWTComponent.AccessibleAWTFocusHandler
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
Constructor Summary
Constructor | Description |
---|---|
AccessibleAWTListChild(List parent,
int indexInParent) | Constructs new |
Method Summary
Modifier and Type | Method | Description |
---|---|---|
void | addFocusListener(FocusListener l) | Adds the specified focus listener to receive focus events from this component. |
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 | getAccessibleChild(int i) | Return the specified Accessible child of the object. |
int | getAccessibleChildrenCount() | Returns the number of accessible children of the object. |
AccessibleContext | getAccessibleContext() | Gets the AccessibleContext for this object. |
int | getAccessibleIndexInParent() | Get the 0-based index of this object in its accessible parent. |
AccessibleRole | getAccessibleRole() | Get the role of this object. |
AccessibleStateSet | getAccessibleStateSet() | Get the state set of this object. |
Color | getBackground() | Get the background color of this object. |
Rectangle | getBounds() | Gets the bounds of this object in the form of a Rectangle object. |
Cursor | getCursor() | Get the Cursor of this object. |
Font | getFont() | Get the Font of this object. |
FontMetrics | getFontMetrics(Font f) | Get the FontMetrics of this object. |
Color | getForeground() | Get the foreground color of this object. |
Locale | getLocale() | Gets the locale of the component. |
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() | Determine if the object is enabled. |
boolean | isFocusTraversable() | Returns whether this object can accept focus or not. |
boolean | isShowing() | Determine if the object is showing. |
boolean | isVisible() | Determine 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 | requestFocus() | Requests focus for this object. |
void | setBackground(Color c) | Set 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) | Set the Cursor of this object. |
void | setEnabled(boolean b) | Set the enabled state of the object. |
void | setFont(Font f) | Set the Font of this object. |
void | setForeground(Color c) | Set 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) | 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
Methods declared in class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Constructor Detail
AccessibleAWTListChild
public AccessibleAWTListChild(List parent, int indexInParent)
Constructs new AccessibleAWTListChild
with the given parent List
and 0-based index of this object in the parent.
- Parameters:
-
parent
- the parentList
-
indexInParent
- the index in the parent
Method Detail
getAccessibleContext
public AccessibleContext 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
getAccessibleRole
public AccessibleRole 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:
AccessibleRole
getAccessibleStateSet
public AccessibleStateSet 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:
-
AccessibleStateSet
,AccessibleState
,Component.AccessibleAWTComponent.addPropertyChangeListener(java.beans.PropertyChangeListener)
getLocale
public Locale 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.
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:
-
Component.AccessibleAWTComponent.getAccessibleParent()
,getAccessibleChildrenCount()
,getAccessibleChild(int)
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.
getAccessibleChild
public Accessible getAccessibleChild(int i)
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:
getAccessibleChildrenCount()
getBackground
public Color 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:
setBackground(java.awt.Color)
setBackground
public void setBackground(Color c)
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:
setBackground(java.awt.Color)
getForeground
public Color 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:
setForeground(java.awt.Color)
setForeground
public void setForeground(Color c)
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:
getForeground()
getCursor
public Cursor 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:
setCursor(java.awt.Cursor)
setCursor
public void setCursor(Cursor cursor)
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:
getCursor()
getFont
public Font 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:
setFont(java.awt.Font)
setFont
public void setFont(Font f)
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:
getFont()
getFontMetrics
public FontMetrics getFontMetrics(Font f)
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:
getFont()
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(boolean)
,AccessibleContext.getAccessibleStateSet()
,AccessibleState.ENABLED
,AccessibleStateSet
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:
isEnabled()
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:
-
setVisible(boolean)
,AccessibleContext.getAccessibleStateSet()
,AccessibleState.VISIBLE
,AccessibleStateSet
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:
isVisible()
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
contains
public 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.
- 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:
getBounds()
getLocationOnScreen
public Point 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:
-
getBounds()
,getLocation()
getLocation
public 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.
- 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:
-
getBounds()
,getLocationOnScreen()
setLocation
public void setLocation(Point p)
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:
getLocation()
getBounds
public Rectangle 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:
contains(java.awt.Point)
setBounds
public void setBounds(Rectangle r)
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:
getBounds()
getSize
public Dimension 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:
setSize(java.awt.Dimension)
setSize
public void setSize(Dimension d)
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:
getSize()
getAccessibleAt
public Accessible getAccessibleAt(Point p)
Returns the Accessible
child, if one exists, contained at the local coordinate Point
.
- 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
isFocusTraversable
public boolean isFocusTraversable()
Returns whether this object can accept focus or not. Objects that can accept focus will also have the AccessibleState.FOCUSABLE
state set in their AccessibleStateSet
.
- Specified by:
-
isFocusTraversable
in interfaceAccessibleComponent
- Overrides:
-
isFocusTraversable
in classComponent.AccessibleAWTComponent
- Returns:
- true if object can accept focus; otherwise false
- See Also:
-
AccessibleContext.getAccessibleStateSet()
,AccessibleState.FOCUSABLE
,AccessibleState.FOCUSED
,AccessibleStateSet
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:
isFocusTraversable()
addFocusListener
public void addFocusListener(FocusListener l)
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:
removeFocusListener(java.awt.event.FocusListener)
removeFocusListener
public void removeFocusListener(FocusListener l)
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:
addFocusListener(java.awt.event.FocusListener)