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

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

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