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java.awt
Class Component.AccessibleAWTComponent  view Component.AccessibleAWTComponent download Component.AccessibleAWTComponent.java

java.lang.Object
  extended byjavax.accessibility.AccessibleContext
      extended byjava.awt.Component.AccessibleAWTComponent
All Implemented Interfaces:
javax.accessibility.AccessibleComponent, java.io.Serializable
Direct Known Subclasses:
Button.AccessibleAWTButton, Canvas.AccessibleAWTCanvas, Checkbox.AccessibleAWTCheckbox, Choice.AccessibleAWTChoice, Container.AccessibleAWTContainer, Label.AccessibleAWTLabel, List.AccessibleAWTList, List.AccessibleAWTList.AccessibleAWTListChild, Scrollbar.AccessibleAWTScrollBar, TextComponent.AccessibleAWTTextComponent
Enclosing class:
Component
protected abstract class Component.AccessibleAWTComponent
extends javax.accessibility.AccessibleContext
implements java.io.Serializable, javax.accessibility.AccessibleComponent

This class provides accessibility support for subclasses of container.

Since:
1.3

Nested Class Summary
protected  class Component.AccessibleAWTComponent.AccessibleAWTComponentHandler
          Converts component changes into property changes.
protected  class Component.AccessibleAWTComponent.AccessibleAWTFocusHandler
          Converts focus changes into property changes.
 
Field Summary
protected  java.awt.event.ComponentListener accessibleAWTComponentHandler
          Converts show/hide events to PropertyChange events, and is registered as a component listener on this component.
protected  java.awt.event.FocusListener accessibleAWTFocusHandler
          Converts focus events to PropertyChange events, and is registered as a focus listener on this component.
private static long serialVersionUID
          Compatible with JDK 1.3+.
 
Fields inherited from 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
protected Component.AccessibleAWTComponent()
          The default constructor.
 
Method Summary
 void addFocusListener(java.awt.event.FocusListener l)
          Adds a focus listener.
 void addPropertyChangeListener(java.beans.PropertyChangeListener l)
          Adds a global property change listener to the accessible component.
 boolean contains(Point p)
          Tests if the point is contained in this component.
 javax.accessibility.Accessible getAccessibleAt(Point p)
          Returns the Accessible child at a point relative to the coordinate system of this component, if one exists, or null.
 javax.accessibility.Accessible getAccessibleChild(int i)
          Returns the ith accessible child.
 int getAccessibleChildrenCount()
          Returns the number of children of this component which implement Accessible.
 javax.accessibility.AccessibleComponent getAccessibleComponent()
          Returns this, since it is an accessible component.
 java.lang.String getAccessibleDescription()
          Returns a brief description of this accessible context.
 int getAccessibleIndexInParent()
          Returns the index of this component in its accessible parent.
 java.lang.String getAccessibleName()
          Returns the accessible name of this component.
 javax.accessibility.Accessible getAccessibleParent()
          Returns the parent of this component, if it is accessible.
 javax.accessibility.AccessibleRole getAccessibleRole()
          Returns the role of this component.
 javax.accessibility.AccessibleStateSet getAccessibleStateSet()
          Returns a state set describing this component's state.
 Color getBackground()
          Gets the background color.
 Rectangle getBounds()
          Gets the bounds of this component, or null if it is not on screen.
 Cursor getCursor()
          Gets the cursor.
 Font getFont()
          Gets the font.
 FontMetrics getFontMetrics(Font f)
          Gets the font metrics for a font.
 Color getForeground()
          Gets the foreground color.
 java.util.Locale getLocale()
          Returns the locale of this component.
 Point getLocation()
          Returns the location of this object relative to its parent's coordinate system, or null if it is not showing.
 Point getLocationOnScreen()
          Returns the location of this object on the screen, or null if it is not showing.
 Dimension getSize()
          Gets the size of this component, or null if it is not showing.
 boolean isEnabled()
          Tests if the component is enabled.
 boolean isFocusTraversable()
          Tests whether this component can accept focus.
 boolean isShowing()
          Tests if the component is showing.
 boolean isVisible()
          Test whether the component is visible (not necesarily showing).
 void removeFocusListener(java.awt.event.FocusListener l)
          Removes a focus listener.
 void removePropertyChangeListener(java.beans.PropertyChangeListener l)
          Removes a global property change listener from this accessible component.
 void requestFocus()
          Requests focus for this component.
 void setBackground(Color c)
          Sets the background color.
 void setBounds(Rectangle r)
          Sets the bounds of this component.
 void setCursor(Cursor cursor)
          Sets the cursor.
 void setEnabled(boolean b)
          Set whether the component is enabled.
 void setFont(Font f)
          Sets the font.
 void setForeground(Color c)
          Sets the foreground color.
 void setLocation(Point p)
          Sets the location of this relative to its parent's coordinate system.
 void setSize(Dimension d)
          Sets the size of this component.
 void setVisible(boolean b)
          Sets the visibility of this component.
 
Methods inherited from class javax.accessibility.AccessibleContext
firePropertyChange, getAccessibleAction, getAccessibleEditableText, getAccessibleIcon, getAccessibleRelationSet, getAccessibleSelection, getAccessibleTable, getAccessibleText, getAccessibleValue, setAccessibleDescription, setAccessibleName, setAccessibleParent
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

serialVersionUID

private static final long serialVersionUID
Compatible with JDK 1.3+.

See Also:
Constant Field Values

accessibleAWTComponentHandler

protected java.awt.event.ComponentListener accessibleAWTComponentHandler
Converts show/hide events to PropertyChange events, and is registered as a component listener on this component.

accessibleAWTFocusHandler

protected java.awt.event.FocusListener accessibleAWTFocusHandler
Converts focus events to PropertyChange events, and is registered as a focus listener on this component.

Constructor Detail

Component.AccessibleAWTComponent

protected Component.AccessibleAWTComponent()
The default constructor.

Method Detail

addPropertyChangeListener

public void addPropertyChangeListener(java.beans.PropertyChangeListener l)
Adds a global property change listener to the accessible component.

removePropertyChangeListener

public void removePropertyChangeListener(java.beans.PropertyChangeListener l)
Removes a global property change listener from this accessible component.

getAccessibleName

public java.lang.String getAccessibleName()
Returns the accessible name of this component. It is almost always wrong to return getName(), since it is not localized. In fact, for things like buttons, this should be the text of the button, not the name of the object. The tooltip text might also be appropriate.

getAccessibleDescription

public java.lang.String getAccessibleDescription()
Returns a brief description of this accessible context. This should be localized.

getAccessibleRole

public javax.accessibility.AccessibleRole getAccessibleRole()
Returns the role of this component.

getAccessibleStateSet

public javax.accessibility.AccessibleStateSet getAccessibleStateSet()
Returns a state set describing this component's state.

getAccessibleParent

public javax.accessibility.Accessible getAccessibleParent()
Returns the parent of this component, if it is accessible.

getAccessibleIndexInParent

public int getAccessibleIndexInParent()
Returns the index of this component in its accessible parent.

getAccessibleChildrenCount

public int getAccessibleChildrenCount()
Returns the number of children of this component which implement Accessible. Subclasses must override this if they can have children.

getAccessibleChild

public javax.accessibility.Accessible getAccessibleChild(int i)
Returns the ith accessible child. Subclasses must override this if they can have children.

getLocale

public java.util.Locale getLocale()
Returns the locale of this component.

getAccessibleComponent

public javax.accessibility.AccessibleComponent getAccessibleComponent()
Returns this, since it is an accessible component.

getBackground

public Color getBackground()
Gets the background color.

Specified by:
getBackground in interface javax.accessibility.AccessibleComponent

setBackground

public void setBackground(Color c)
Sets the background color.

Specified by:
setBackground in interface javax.accessibility.AccessibleComponent

getForeground

public Color getForeground()
Gets the foreground color.

Specified by:
getForeground in interface javax.accessibility.AccessibleComponent

setForeground

public void setForeground(Color c)
Sets the foreground color.

Specified by:
setForeground in interface javax.accessibility.AccessibleComponent

getCursor

public Cursor getCursor()
Gets the cursor.

Specified by:
getCursor in interface javax.accessibility.AccessibleComponent

setCursor

public void setCursor(Cursor cursor)
Sets the cursor.

Specified by:
setCursor in interface javax.accessibility.AccessibleComponent

getFont

public Font getFont()
Gets the font.

Specified by:
getFont in interface javax.accessibility.AccessibleComponent

setFont

public void setFont(Font f)
Sets the font.

Specified by:
setFont in interface javax.accessibility.AccessibleComponent

getFontMetrics

public FontMetrics getFontMetrics(Font f)
Gets the font metrics for a font.

Specified by:
getFontMetrics in interface javax.accessibility.AccessibleComponent

isEnabled

public boolean isEnabled()
Tests if the component is enabled.

Specified by:
isEnabled in interface javax.accessibility.AccessibleComponent

setEnabled

public void setEnabled(boolean b)
Set whether the component is enabled.

Specified by:
setEnabled in interface javax.accessibility.AccessibleComponent

isVisible

public boolean isVisible()
Test whether the component is visible (not necesarily showing).

Specified by:
isVisible in interface javax.accessibility.AccessibleComponent

setVisible

public void setVisible(boolean b)
Sets the visibility of this component.

Specified by:
setVisible in interface javax.accessibility.AccessibleComponent

isShowing

public boolean isShowing()
Tests if the component is showing.

Specified by:
isShowing in interface javax.accessibility.AccessibleComponent

contains

public boolean contains(Point p)
Tests if the point is contained in this component.

Specified by:
contains in interface javax.accessibility.AccessibleComponent

getLocationOnScreen

public Point getLocationOnScreen()
Returns the location of this object on the screen, or null if it is not showing.

Specified by:
getLocationOnScreen in interface javax.accessibility.AccessibleComponent

getLocation

public Point getLocation()
Returns the location of this object relative to its parent's coordinate system, or null if it is not showing.

Specified by:
getLocation in interface javax.accessibility.AccessibleComponent

setLocation

public void setLocation(Point p)
Sets the location of this relative to its parent's coordinate system.

Specified by:
setLocation in interface javax.accessibility.AccessibleComponent

getBounds

public Rectangle getBounds()
Gets the bounds of this component, or null if it is not on screen.

Specified by:
getBounds in interface javax.accessibility.AccessibleComponent

setBounds

public void setBounds(Rectangle r)
Sets the bounds of this component.

Specified by:
setBounds in interface javax.accessibility.AccessibleComponent

getSize

public Dimension getSize()
Gets the size of this component, or null if it is not showing.

Specified by:
getSize in interface javax.accessibility.AccessibleComponent

setSize

public void setSize(Dimension d)
Sets the size of this component.

Specified by:
setSize in interface javax.accessibility.AccessibleComponent

getAccessibleAt

public javax.accessibility.Accessible getAccessibleAt(Point p)
Returns the Accessible child at a point relative to the coordinate system of this component, if one exists, or null. Since components have no children, subclasses must override this to get anything besides null.

Specified by:
getAccessibleAt in interface javax.accessibility.AccessibleComponent

isFocusTraversable

public boolean isFocusTraversable()
Tests whether this component can accept focus.

Specified by:
isFocusTraversable in interface javax.accessibility.AccessibleComponent

requestFocus

public void requestFocus()
Requests focus for this component.

Specified by:
requestFocus in interface javax.accessibility.AccessibleComponent

addFocusListener

public void addFocusListener(java.awt.event.FocusListener l)
Adds a focus listener.

Specified by:
addFocusListener in interface javax.accessibility.AccessibleComponent

removeFocusListener

public void removeFocusListener(java.awt.event.FocusListener l)
Removes a focus listener.

Specified by:
removeFocusListener in interface javax.accessibility.AccessibleComponent
Overview  Package   Class  Use  Deprecated  Index 
Home >> All >> java >> [ awt overview ]  PREV CLASS  NEXT CLASS
SUMMARY: JavaDoc of java.awt.Component JAVADOC | Sourc code of java.awt.Component SOURCE | Download java.awt.Component DOWNLOAD | NESTED | FIELD | CONSTR | METHOD DETAIL: FIELD | CONSTR | METHOD