net.miginfocom.layout

类 LayoutCallback

java.lang.Object

net.miginfocom.layout.LayoutCallback

public abstract class LayoutCallback
extends Object

A class to extend if you want to provide more control over where a component is placed or the size of it.

Note! Returned arrays from this class will never be altered. This means that caching of arrays in these methods is OK.

构造器概要

构造器

构造器和说明
LayoutCallback()

方法概要

限定符和类型	方法和说明
void	correctBounds(ComponentWrapper comp) A last minute change of the bounds.
UnitValue[]	getPosition(ComponentWrapper comp) Returns a position similar to the "pos" the component constraint.
BoundSize[]	getSize(ComponentWrapper comp) Returns a size similar to the "width" and "height" in the component constraint.

从类继承的方法 java.lang.Object

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

构造器详细资料

LayoutCallback

public LayoutCallback()

方法详细资料

getPosition

public UnitValue[] getPosition(ComponentWrapper comp)

Returns a position similar to the "pos" the component constraint.

参数:

comp - The component wrapper that holds the actual component (JComponent is Swing and Control in SWT). Should not be altered.

返回:

The [x, y, x2, y2] as explained in the documentation for "pos". If null is returned nothing is done and this is the default.

另请参阅:

UnitValue, ConstraintParser.parseUnitValue(String, boolean)

getSize

public BoundSize[] getSize(ComponentWrapper comp)

Returns a size similar to the "width" and "height" in the component constraint.

参数:

comp - The component wrapper that holds the actual component (JComponent is Swing and Control in SWT). Should not be altered.

返回:

The [width, height] as explained in the documentation for "width" and "height". If null is returned nothing is done and this is the default.

另请参阅:

BoundSize, ConstraintParser.parseBoundSize(String, boolean, boolean)

correctBounds

public void correctBounds(ComponentWrapper comp)

A last minute change of the bounds. The bound for the layout cycle has been set and you can correct there after any set of rules you like.

参数:

comp - The component wrapper that holds the actual component (JComponent is Swing and Control in SWT).