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Java™ Platform Standard Ed. 6 |
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java.lang.Object javax.accessibility.AccessibleContext java.awt.Component.AccessibleAWTComponent
protected abstract class Component.AccessibleAWTComponent
Inner class of Component used to provide default support for accessibility. This class is not meant to be used directly by application developers, but is instead meant only to be subclassed by component developers.
The class used to obtain the accessible role for this object.
Nested Class Summary | |
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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 | |
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protected ComponentListener |
accessibleAWTComponentHandler
|
protected FocusListener |
accessibleAWTFocusHandler
|
Constructor Summary | |
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protected |
Component.AccessibleAWTComponent()
Though the class is abstract, this should be called by all sub-classes. |
Method Summary | |
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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. |
AccessibleRole |
getAccessibleRole()
Gets the role of this object. |
AccessibleStateSet |
getAccessibleStateSet()
Gets the state 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 inherited from class javax.accessibility.AccessibleContext |
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firePropertyChange, getAccessibleAction, getAccessibleEditableText, getAccessibleIcon, getAccessibleRelationSet, getAccessibleSelection, getAccessibleTable, getAccessibleText, getAccessibleValue, setAccessibleDescription, setAccessibleName, setAccessibleParent |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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protected ComponentListener accessibleAWTComponentHandler
protected FocusListener accessibleAWTFocusHandler
Constructor Detail |
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protected Component.AccessibleAWTComponent()
Method Detail |
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public void addPropertyChangeListener(PropertyChangeListener listener)
PropertyChangeListener
to the listener list.
addPropertyChangeListener
in class AccessibleContext
listener
- the property change listener to be addedAccessibleContext.ACCESSIBLE_NAME_PROPERTY
,
AccessibleContext.ACCESSIBLE_DESCRIPTION_PROPERTY
,
AccessibleContext.ACCESSIBLE_STATE_PROPERTY
,
AccessibleContext.ACCESSIBLE_VALUE_PROPERTY
,
AccessibleContext.ACCESSIBLE_SELECTION_PROPERTY
,
AccessibleContext.ACCESSIBLE_TEXT_PROPERTY
,
AccessibleContext.ACCESSIBLE_VISIBLE_DATA_PROPERTY
public void removePropertyChangeListener(PropertyChangeListener listener)
removePropertyChangeListener
in class AccessibleContext
listener
- The PropertyChangeListener to be removedpublic String getAccessibleName()
java.awt.Component.getName()
,
as that generally isn't a localized name,
and doesn't have meaning for the user. If the
object is fundamentally a text object (e.g. a menu item), the
accessible name should be the text of the object (e.g. "save").
If the object has a tooltip, the tooltip text may also be an
appropriate String to return.
getAccessibleName
in class AccessibleContext
null
if this
object does not have a nameAccessibleContext.setAccessibleName(java.lang.String)
public String getAccessibleDescription()
getAccessibleDescription
in class AccessibleContext
null
if this object does not have a descriptionAccessibleContext.setAccessibleDescription(java.lang.String)
public AccessibleRole getAccessibleRole()
getAccessibleRole
in class AccessibleContext
AccessibleRole
describing the role of the objectAccessibleRole
public AccessibleStateSet getAccessibleStateSet()
getAccessibleStateSet
in class AccessibleContext
AccessibleStateSet
containing the current state set of the objectAccessibleState
public Accessible getAccessibleParent()
Accessible
parent of this object.
If the parent of this object implements Accessible
,
this method should simply return getParent
.
getAccessibleParent
in class AccessibleContext
Accessible
parent of this
object -- can be null
if this
object does not have an Accessible
parentpublic int getAccessibleIndexInParent()
getAccessibleIndexInParent
in class AccessibleContext
getAccessibleParent()
public int getAccessibleChildrenCount()
Accessible
,
then this method should return the number of children of this object.
getAccessibleChildrenCount
in class AccessibleContext
public Accessible getAccessibleChild(int i)
Accessible
child of the object.
getAccessibleChild
in class AccessibleContext
i
- zero-based index of child
Accessible
child of the objectAccessibleContext.getAccessibleChildrenCount()
public Locale getLocale()
getLocale
in class AccessibleContext
public AccessibleComponent getAccessibleComponent()
AccessibleComponent
associated
with this object if one exists.
Otherwise return null
.
getAccessibleComponent
in class AccessibleContext
AccessibleComponent
public Color getBackground()
getBackground
in interface AccessibleComponent
null
AccessibleComponent.setBackground(java.awt.Color)
public void setBackground(Color c)
isOpaque
.)
setBackground
in interface AccessibleComponent
c
- the new Color
for the backgroundComponent.isOpaque()
public Color getForeground()
getForeground
in interface AccessibleComponent
null
AccessibleComponent.setForeground(java.awt.Color)
public void setForeground(Color c)
setForeground
in interface AccessibleComponent
c
- the new Color
for the foregroundAccessibleComponent.getForeground()
public Cursor getCursor()
Cursor
of this object.
getCursor
in interface AccessibleComponent
Cursor
, if supported,
of the object; otherwise, null
AccessibleComponent.setCursor(java.awt.Cursor)
public void setCursor(Cursor cursor)
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.
setCursor
in interface AccessibleComponent
cursor
- the new Cursor
for the objectAccessibleComponent.getCursor()
public Font getFont()
Font
of this object.
getFont
in interface AccessibleComponent
Font
, if supported,
for the object; otherwise, null
AccessibleComponent.setFont(java.awt.Font)
public void setFont(Font f)
Font
of this object.
setFont
in interface AccessibleComponent
f
- the new Font
for the objectAccessibleComponent.getFont()
public FontMetrics getFontMetrics(Font f)
FontMetrics
of this object.
getFontMetrics
in interface AccessibleComponent
f
- the Font
FontMetrics
, if supported,
the object; otherwise, null
getFont()
public boolean isEnabled()
isEnabled
in interface AccessibleComponent
AccessibleComponent.setEnabled(boolean)
,
AccessibleContext.getAccessibleStateSet()
,
AccessibleState.ENABLED
,
AccessibleStateSet
public void setEnabled(boolean b)
setEnabled
in interface AccessibleComponent
b
- if true, enables this object; otherwise, disables itAccessibleComponent.isEnabled()
public boolean isVisible()
isShowing
.
isVisible
in interface AccessibleComponent
AccessibleComponent.setVisible(boolean)
,
AccessibleContext.getAccessibleStateSet()
,
AccessibleState.VISIBLE
,
AccessibleStateSet
public void setVisible(boolean b)
setVisible
in interface AccessibleComponent
b
- if true, shows this object; otherwise, hides itAccessibleComponent.isVisible()
public boolean isShowing()
isShowing
in interface AccessibleComponent
public boolean contains(Point p)
contains
in interface AccessibleComponent
p
- the Point
relative to the
coordinate system of the object
Point
; otherwise falseAccessibleComponent.getBounds()
public Point getLocationOnScreen()
getLocationOnScreen
in interface AccessibleComponent
null
if this object is not on the screenAccessibleComponent.getBounds()
,
AccessibleComponent.getLocation()
public Point getLocation()
getLocation
in interface AccessibleComponent
null
if this object or its parent are not on the screenAccessibleComponent.getBounds()
,
AccessibleComponent.getLocationOnScreen()
public void setLocation(Point p)
setLocation
in interface AccessibleComponent
p
- the coordinates of the objectAccessibleComponent.getLocation()
public Rectangle getBounds()
getBounds
in interface AccessibleComponent
null
if this object is not on the screenAccessibleComponent.contains(java.awt.Point)
public void setBounds(Rectangle r)
Rectangle
object.
The bounds specify this object's width, height, and location
relative to its parent.
setBounds
in interface AccessibleComponent
r
- a rectangle indicating this component's boundsAccessibleComponent.getBounds()
public Dimension getSize()
Dimension
object. The height field of the
Dimension
object contains this objects's
height, and the width field of the Dimension
object contains this object's width.
getSize
in interface AccessibleComponent
Dimension
object that indicates
the size of this component; null
if
this object is not on the screenAccessibleComponent.setSize(java.awt.Dimension)
public void setSize(Dimension d)
setSize
in interface AccessibleComponent
d
- - the dimension specifying the new size of the objectAccessibleComponent.getSize()
public Accessible getAccessibleAt(Point p)
Accessible
child,
if one exists, contained at the local
coordinate Point
. Otherwise returns
null
.
getAccessibleAt
in interface AccessibleComponent
p
- the point defining the top-left corner of
the Accessible
, given in the
coordinate space of the object's parent
Accessible
, if it exists,
at the specified location; else null
public boolean isFocusTraversable()
isFocusTraversable
in interface AccessibleComponent
AccessibleContext.getAccessibleStateSet()
,
AccessibleState.FOCUSABLE
,
AccessibleState.FOCUSED
,
AccessibleStateSet
public void requestFocus()
requestFocus
in interface AccessibleComponent
AccessibleComponent.isFocusTraversable()
public void addFocusListener(FocusListener l)
addFocusListener
in interface AccessibleComponent
l
- the focus listenerAccessibleComponent.removeFocusListener(java.awt.event.FocusListener)
public void removeFocusListener(FocusListener l)
removeFocusListener
in interface AccessibleComponent
l
- the focus listenerAccessibleComponent.addFocusListener(java.awt.event.FocusListener)
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Java™ Platform Standard Ed. 6 |
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