Class DefaultMenuLayout

java.lang.Object

javax.swing.BoxLayout

javax.swing.plaf.basic.DefaultMenuLayout

All Implemented Interfaces:

LayoutManager, LayoutManager2, Serializable, UIResource

public class DefaultMenuLayout
extends BoxLayout
implements UIResource

The default layout manager for Popup menus and menubars. This class is an extension of BoxLayout which adds the UIResource tag so that pluggable L&Fs can distinguish it from user-installed layout managers on menus.

Field Summary

Fields declared in class BoxLayout

LINE_AXIS, PAGE_AXIS, X_AXIS, Y_AXIS

Modifier and Type	Field	Description
static final int	LINE_AXIS	Specifies that components should be laid out in the direction of a line of text as determined by the target container's ComponentOrientation property.
static final int	PAGE_AXIS	Specifies that components should be laid out in the direction that lines flow across a page as determined by the target container's ComponentOrientation property.
static final int	X_AXIS	Specifies that components should be laid out left to right.
static final int	Y_AXIS	Specifies that components should be laid out top to bottom.

Constructor Summary

Constructors

Constructor	Description
DefaultMenuLayout(Container target, int axis)	Constructs a new instance of DefaultMenuLayout.

Method Summary

Methods declared in class BoxLayout

addLayoutComponent, addLayoutComponent, getAxis, getLayoutAlignmentX, getLayoutAlignmentY, getTarget, invalidateLayout, layoutContainer, maximumLayoutSize, minimumLayoutSize, preferredLayoutSize, removeLayoutComponent

Modifier and Type	Method	Description
void	addLayoutComponent(Component comp, Object constraints)	Not used by this class.
void	addLayoutComponent(String name, Component comp)	Not used by this class.
final int	getAxis()	Returns the axis that was used to lay out components.
float	getLayoutAlignmentX(Container target)	Returns the alignment along the X axis for the container.
float	getLayoutAlignmentY(Container target)	Returns the alignment along the Y axis for the container.
final Container	getTarget()	Returns the container that uses this layout manager.
void	invalidateLayout(Container target)	Indicates that a child has changed its layout related information, and thus any cached calculations should be flushed.
void	layoutContainer(Container target)	Called by the AWT when the specified container needs to be laid out.
Dimension	maximumLayoutSize(Container target)	Returns the maximum dimensions the target container can use to lay out the components it contains.
Dimension	minimumLayoutSize(Container target)	Returns the minimum dimensions needed to lay out the components contained in the specified target container.
Dimension	preferredLayoutSize(Container target)	Returns the preferred dimensions for this layout, given the components in the specified target container.
void	removeLayoutComponent(Component comp)	Not used by this class.

Methods declared in class Object

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

Modifier and Type	Method	Description
protected Object	clone()	Answers a new instance of the same class as the receiver, whose slots have been filled in with the values in the slots of the receiver.
boolean	equals(Object o)	Compares the argument to the receiver, and answers true if they represent the same object using a class specific comparison.
protected void	finalize()	Deprecated, for removal: This API element is subject to removal in a future version. May cause performance issues, deadlocks and hangs.
final Class<? extends Object>	getClass()	Answers the unique instance of java.lang.Class which represents the class of the receiver.
int	hashCode()	Answers an integer hash code for the receiver.
final void	notify()	Causes one thread which is waiting on the receiver to be made ready to run.
final void	notifyAll()	Causes all threads which are waiting on the receiver to be made ready to run.
String	toString()	Answers a string containing a concise, human-readable description of the receiver.
final void	wait()	Causes the thread which sent this message to be made not ready to run pending some change in the receiver (as indicated by notify or notifyAll).
final void	wait(long time)	Causes the thread which sent this message to be made not ready to run either pending some change in the receiver (as indicated by notify or notifyAll) or the expiration of the timeout.
final void	wait(long time, int frac)	Causes the thread which sent this message to be made not ready to run either pending some change in the receiver (as indicated by notify or notifyAll) or the expiration of the timeout.

Constructor Details

DefaultMenuLayout

public DefaultMenuLayout(Container target,
 int axis)

Constructs a new instance of DefaultMenuLayout.

Parameters:

target - the container that needs to be laid out

axis - the axis to lay out components along. Can be one of: BoxLayout.X_AXIS, BoxLayout.Y_AXIS, BoxLayout.LINE_AXIS or BoxLayout.PAGE_AXIS