Class Component.AccessibleAWTComponent

Method Details

• addPropertyChangeListener

  public void addPropertyChangeListener(PropertyChangeListener listener)

  Adds a PropertyChangeListener to the listener list.

  Overrides:

  addPropertyChangeListener in class AccessibleContext

  Parameters:

  listener - the property change listener to be added

  See Also:

  • AccessibleContext.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

• removePropertyChangeListener

  public void removePropertyChangeListener(PropertyChangeListener listener)

  Remove a PropertyChangeListener from the listener list. This removes a PropertyChangeListener that was registered for all properties.

  Overrides:

  removePropertyChangeListener in class AccessibleContext

  Parameters:

  listener - The PropertyChangeListener to be removed

• getAccessibleName

  public String getAccessibleName()

  Gets the accessible name of this object. This should almost never return 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.

  Overrides:

  getAccessibleName in class AccessibleContext

  Returns:

  the localized name of the object -- can be null if this object does not have a name

  See Also:

  • AccessibleContext.setAccessibleName(java.lang.String)

• getAccessibleDescription

  public String getAccessibleDescription()

  Gets the accessible description of this object. This should be a concise, localized description of what this object is - what is its meaning to the user. If the object has a tooltip, the tooltip text may be an appropriate string to return, assuming it contains a concise description of the object (instead of just the name of the object - e.g. a "Save" icon on a toolbar that had "save" as the tooltip text shouldn't return the tooltip text as the description, but something like "Saves the current text document" instead).

  Overrides:

  getAccessibleDescription in class AccessibleContext

  Returns:

  the localized description of the object -- can be null if this object does not have a description

  See Also:

  • AccessibleContext.setAccessibleDescription(java.lang.String)

• getAccessibleRole

  public AccessibleRole getAccessibleRole()

  Gets the role of this object.

  Specified by:

  getAccessibleRole in class AccessibleContext

  Returns:

  an instance of AccessibleRole describing the role of the object

  See Also:

  • AccessibleRole

• getAccessibleStateSet

  public AccessibleStateSet getAccessibleStateSet()

  Gets the state of this object.

  Specified by:

  getAccessibleStateSet in class AccessibleContext

  Returns:

  an instance of AccessibleStateSet containing the current state set of the object

  See Also:

  • AccessibleState

• getAccessibleParent

  public Accessible getAccessibleParent()

  Gets the Accessible parent of this object. If the parent of this object implements Accessible, this method should simply return getParent.

  Overrides:

  getAccessibleParent in class AccessibleContext

  Returns:

  the Accessible parent of this object -- can be null if this object does not have an Accessible parent

• getAccessibleIndexInParent

  public int getAccessibleIndexInParent()

  Gets the index of this object in its accessible parent.

  Specified by:

  getAccessibleIndexInParent in class AccessibleContext

  Returns:

  the index of this object in its parent; or -1 if this object does not have an accessible parent

  See Also:

  • getAccessibleParent()

• getAccessibleChildrenCount

  public int getAccessibleChildrenCount()

  Returns the number of accessible children in the object. If all of the children of this object implement Accessible, then this method should return the number of children of this object.

  Specified by:

  getAccessibleChildrenCount in class AccessibleContext

  Returns:

  the number of accessible children in the object

• getAccessibleChild

  public Accessible getAccessibleChild(int i)

  Returns the nth Accessible child of the object.

  Specified by:

  getAccessibleChild in class AccessibleContext

  Parameters:

  i - zero-based index of child

  Returns:

  the nth Accessible child of the object

  See Also:

  • AccessibleContext.getAccessibleChildrenCount()

• getLocale

  public Locale getLocale()

  Returns the locale of this object.

  Specified by:

  getLocale in class AccessibleContext

  Returns:

  the locale of this object

• getAccessibleComponent

  public AccessibleComponent getAccessibleComponent()

  Gets the AccessibleComponent associated with this object if one exists. Otherwise return null.

  Overrides:

  getAccessibleComponent in class AccessibleContext

  Returns:

  the component

  See Also:

  • AccessibleComponent

• getBackground

  public Color getBackground()

  Gets the background color of this object.

  Specified by:

  getBackground in interface AccessibleComponent

  Returns:

  the background color, if supported, of the object; otherwise, null

  See Also:

  • AccessibleComponent.setBackground(java.awt.Color)

• setBackground

  public void setBackground(Color c)

  Sets the background color of this object. (For transparency, see isOpaque.)

  Specified by:

  setBackground in interface AccessibleComponent

  Parameters:

  c - the new Color for the background

  See Also:

  • Component.isOpaque()

• getForeground

  public Color getForeground()

  Gets the foreground color of this object.

  Specified by:

  getForeground in interface AccessibleComponent

  Returns:

  the foreground color, if supported, of the object; otherwise, null

  See Also:

  • AccessibleComponent.setForeground(java.awt.Color)

• setForeground

  public void setForeground(Color c)

  Sets the foreground color of this object.

  Specified by:

  setForeground in interface AccessibleComponent

  Parameters:

  c - the new Color for the foreground

  See Also:

  • AccessibleComponent.getForeground()

• getCursor

  public Cursor getCursor()

  Gets the Cursor of this object.

  Specified by:

  getCursor in interface AccessibleComponent

  Returns:

  the Cursor, if supported, of the object; otherwise, null

  See Also:

  • AccessibleComponent.setCursor(java.awt.Cursor)

• setCursor

  public void setCursor(Cursor cursor)

  Sets 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 interface AccessibleComponent

  Parameters:

  cursor - the new Cursor for the object

  See Also:

  • AccessibleComponent.getCursor()

• getFont

  public Font getFont()

  Gets the Font of this object.

  Specified by:

  getFont in interface AccessibleComponent

  Returns:

  the Font, if supported, for the object; otherwise, null

  See Also:

  • AccessibleComponent.setFont(java.awt.Font)

• setFont

  public void setFont(Font f)

  Sets the Font of this object.

  Specified by:

  setFont in interface AccessibleComponent

  Parameters:

  f - the new Font for the object

  See Also:

  • AccessibleComponent.getFont()

• getFontMetrics

  public FontMetrics getFontMetrics(Font f)

  Gets the FontMetrics of this object.

  Specified by:

  getFontMetrics in interface AccessibleComponent

  Parameters:

  f - the Font

  Returns:

  the FontMetrics, if supported, the object; otherwise, null

  See Also:

  • getFont()

• isEnabled

  public boolean isEnabled()

  Determines if the object is enabled.

  Specified by:

  isEnabled in interface AccessibleComponent

  Returns:

  true if object is enabled; otherwise, false

  See Also:

  • AccessibleComponent.setEnabled(boolean)
  • AccessibleContext.getAccessibleStateSet()
  • AccessibleState.ENABLED
  • AccessibleStateSet

• setEnabled

  public void setEnabled(boolean b)

  Sets the enabled state of the object.

  Specified by:

  setEnabled in interface AccessibleComponent

  Parameters:

  b - if true, enables this object; otherwise, disables it

  See Also:

  • AccessibleComponent.isEnabled()

• isVisible

  public boolean isVisible()

  Determines if the object is visible. Note: this means that the object intends to be visible; however, it may not in fact be showing on the screen because one of the objects that this object is contained by is not visible. To determine if an object is showing on the screen, use isShowing.

  Specified by:

  isVisible in interface AccessibleComponent

  Returns:

  true if object is visible; otherwise, false

  See Also:

  • AccessibleComponent.setVisible(boolean)
  • AccessibleContext.getAccessibleStateSet()
  • AccessibleState.VISIBLE
  • AccessibleStateSet

• setVisible

  public void setVisible(boolean b)

  Sets the visible state of the object.

  Specified by:

  setVisible in interface AccessibleComponent

  Parameters:

  b - if true, shows this object; otherwise, hides it

  See Also:

  • AccessibleComponent.isVisible()

• isShowing

  public boolean isShowing()

  Determines if the object is showing. This is determined by checking the visibility of the object and ancestors of the object. Note: this will return true even if the object is obscured by another (for example, it happens to be underneath a menu that was pulled down).

  Specified by:

  isShowing in interface AccessibleComponent

  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 interface AccessibleComponent

  Parameters:

  p - the Point relative to the coordinate system of the object

  Returns:

  true if object contains Point; otherwise false

  See Also:

  • AccessibleComponent.getBounds()

• getLocationOnScreen

  public Point getLocationOnScreen()

  Returns the location of the object on the screen.

  Specified by:

  getLocationOnScreen in interface AccessibleComponent

  Returns:

  location of object on screen -- can be null if this object is not on the screen

  See Also:

  • AccessibleComponent.getBounds()
  • AccessibleComponent.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 interface AccessibleComponent

  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:

  • AccessibleComponent.getBounds()
  • AccessibleComponent.getLocationOnScreen()

• setLocation

  public void setLocation(Point p)

  Sets the location of the object relative to the parent.

  Specified by:

  setLocation in interface AccessibleComponent

  Parameters:

  p - the coordinates of the object

  See Also:

  • AccessibleComponent.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 interface AccessibleComponent

  Returns:

  a rectangle indicating this component's bounds; null if this object is not on the screen

  See Also:

  • AccessibleComponent.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 interface AccessibleComponent

  Parameters:

  r - a rectangle indicating this component's bounds

  See Also:

  • AccessibleComponent.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 interface AccessibleComponent

  Returns:

  a Dimension object that indicates the size of this component; null if this object is not on the screen

  See Also:

  • AccessibleComponent.setSize(java.awt.Dimension)

• setSize

  public void setSize(Dimension d)

  Resizes this object so that it has width and height.

  Specified by:

  setSize in interface AccessibleComponent

  Parameters:

  d - the dimension specifying the new size of the object

  See Also:

  • AccessibleComponent.getSize()

• getAccessibleAt

  public Accessible getAccessibleAt(Point p)

  Returns the Accessible child, if one exists, contained at the local coordinate Point. Otherwise returns null.

  Specified by:

  getAccessibleAt in interface AccessibleComponent

  Parameters:

  p - the point defining the top-left corner of the Accessible, given in the coordinate space of the object's parent

  Returns:

  the Accessible, if it exists, at the specified location; else null

• isFocusTraversable

  public boolean isFocusTraversable()

  Returns whether this object can accept focus or not.

  Specified by:

  isFocusTraversable in interface AccessibleComponent

  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.

  Specified by:

  requestFocus in interface AccessibleComponent

  See Also:

  • AccessibleComponent.isFocusTraversable()

• addFocusListener

  public void addFocusListener(FocusListener l)

  Adds the specified focus listener to receive focus events from this component.

  Specified by:

  addFocusListener in interface AccessibleComponent

  Parameters:

  l - the focus listener

  See Also:

  • AccessibleComponent.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 interface AccessibleComponent

  Parameters:

  l - the focus listener

  See Also:

  • AccessibleComponent.addFocusListener(java.awt.event.FocusListener)