com.sun.dtv.lwuit.layouts
Class Layout

java.lang.Object
  com.sun.dtv.lwuit.layouts.Layout

Direct Known Subclasses:

BorderLayout, BoxLayout, CoordinateLayout, FlowLayout, GridLayout, GroupLayout

public abstract class Layout
extends Object

Abstract class that can be used to arrange components in a container using a predefined algorithm. This class may be implemented externally and is similar in spirit to the AWT/Swing layout managers.

Constructor Summary

Layout()

Method Summary

void	addLayoutComponent(Object value, Component comp, Container c) Some layouts can optionally track the addition of elements with meta-data that allows the user to "hint" on object positioning.
Object	getComponentConstraint(Component comp) Returns the component's constraint.
abstract Dimension	getPreferredSize(Container parent) Returns the container preferred size.
boolean	isOverlapSupported() This method returns true if the Layout allows Components to Overlap.
abstract void	layoutContainer(Container parent) Layout the given parent container children.
void	removeLayoutComponent(Component comp) Removes the component from the layout this operation is only useful if the layout maintains references to components within it.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Layout

public Layout()

Method Detail

layoutContainer

public abstract void layoutContainer(Container parent)

Layout the given parent container children.

Parameters:

parent - the given parent container

getPreferredSize

public abstract Dimension getPreferredSize(Container parent)

Returns the container preferred size.

Parameters:

parent - the parent container

Returns:

the container preferred size

addLayoutComponent

public void addLayoutComponent(Object value,
                               Component comp,
                               Container c)

Some layouts can optionally track the addition of elements with meta-data that allows the user to "hint" on object positioning.

Parameters:

value - optional meta data information, like alignment orientation

comp - the added component to the layout

c - the parent container

removeLayoutComponent

public void removeLayoutComponent(Component comp)

Removes the component from the layout this operation is only useful if the layout maintains references to components within it.

Parameters:

comp - the removed component from layout

getComponentConstraint

public Object getComponentConstraint(Component comp)

Returns the component's constraint.

Parameters:

comp - the component

Returns:

the component's constraint

isOverlapSupported

public boolean isOverlapSupported()

This method returns true if the Layout allows Components to Overlap.

Returns:

true if Components may intersect in this layout