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Interface java.awt.accessibility.AccessibleLayout

public interface AccessibleLayout

The AccessibleLayout interface should be implemented by all objects that support layouts of multiple children. It is designed to be used by assistive technologies that need to know the relative locations of objects on the screen.

NOTE: This is a preliminary draft. The methods and name may change in future beta releases.

See Also:
LayoutManager, Container

Variable Index

o LOGICAL_FIRST
Constant used to locate the first logical object in the container.
o LOGICAL_LAST
Constant used to locate the last logical object in the container.
o LOGICAL_NEXT
Constant used to locate the object logically next of the object passed in.
o LOGICAL_PREVIOUS
Constant used to locate the object logically previous of the object passed in.
o POSITION_ABOVE
Constant used to locate the object physically above the object passed in.
o POSITION_BELOW
Constant used to locate the object physically below the object passed in.
o POSITION_FIRST
Constant used to locate the first physical object in the Container
o POSITION_LAST
Constant used to locate the last physical object in the Container
o POSITION_LEFT
Constant used to locate the object physically left of the object passed in.
o POSITION_RIGHT
Constant used to locate the object physically right of the object passed in.

Method Index

o getFocusTraversable(Component, int)
Determine the focusable object in the given relative focus direction from the Component passed in.
o getFocusTraversable(int)
Determine the first or last object in the Container that accepts focus.
o locate(Component, int)
Determine the object in the given relative direction from the Component passed in.
o locate(int)
Determine the first or last object in the Container.
o locate(Point, int)
Determine the object in the given relative direction from the Point passed in.

Variables

o LOGICAL_PREVIOUS 
public static final int LOGICAL_PREVIOUS
Constant used to locate the object logically previous of the object passed in.

o LOGICAL_NEXT 
public static final int LOGICAL_NEXT
Constant used to locate the object logically next of the object passed in.

o LOGICAL_FIRST 
public static final int LOGICAL_FIRST
Constant used to locate the first logical object in the container.

o LOGICAL_LAST 
public static final int LOGICAL_LAST
Constant used to locate the last logical object in the container.

o POSITION_ABOVE 
public static final int POSITION_ABOVE
Constant used to locate the object physically above the object passed in.

o POSITION_BELOW 
public static final int POSITION_BELOW
Constant used to locate the object physically below the object passed in.

o POSITION_LEFT 
public static final int POSITION_LEFT
Constant used to locate the object physically left of the object passed in.

o POSITION_RIGHT 
public static final int POSITION_RIGHT
Constant used to locate the object physically right of the object passed in.

o POSITION_FIRST 
public static final int POSITION_FIRST
Constant used to locate the first physical object in the Container

o POSITION_LAST 
public static final int POSITION_LAST
Constant used to locate the last physical object in the Container

Methods

o locate 
public abstract Component locate(Component comp,
                                 int direction)
Determine the object in the given relative direction from the Component passed in.

Parameters:
comp - the Component
direction - the direction to look in
Returns:
Component else null
o locate 
public abstract Component locate(Point p,
                                 int direction)
Determine the object in the given relative direction from the Point passed in.

Parameters:
p - Point in screen coordinates
direction - the direction to look in
Returns:
Component else null
o locate 
public abstract Component locate(int pos)
Determine the first or last object in the Container.

Parameters:
pos - -- either POSITION_FIRST, POSITION_LAST, LOGICAL_FIRST, or LOGICAL_LAST
Returns:
Component else null
o getFocusTraversable 
public abstract Component getFocusTraversable(Component comp,
                                              int direction)
Determine the focusable object in the given relative focus direction from the Component passed in. Note that this follows focus traversing rules, not the physical location of the Component itself.

Parameters:
comp - the Component
pos - -- either POSITION_PREVIOUS, POSITION_NEXT, LOGICAL_PREVIOUS, or LOGICAL_NEXT
Returns:
Component else null
o getFocusTraversable 
public abstract Component getFocusTraversable(int pos)
Determine the first or last object in the Container that accepts focus.

Parameters:
pos - -- either POSITION_FIRST, POSITION_LAST, LOGICAL_FIRST, or LOGICAL_LAST
Returns:
Component else null
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