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()	Creates and returns a copy of this object.
boolean	equals(Object obj)	Indicates whether some other object is "equal to" this one.
protected void	finalize()	Deprecated, for removal: This API element is subject to removal in a future version. Finalization is deprecated and subject to removal in a future release.
final Class<?>	getClass()	Returns the runtime class of this Object.
int	hashCode()	Returns a hash code value for this object.
final void	notify()	Wakes up a single thread that is waiting on this object's monitor.
final void	notifyAll()	Wakes up all threads that are waiting on this object's monitor.
String	toString()	Returns a string representation of the object.
final void	wait()	Causes the current thread to wait until it is awakened, typically by being notified or interrupted.
final void	wait(long timeoutMillis)	Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
final void	wait(long timeoutMillis, int nanos)	Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

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