org.netbeans.validation.api.ui

Class ComponentDecorator

java.lang.Object

org.netbeans.validation.api.ui.ComponentDecorator

public class ComponentDecorator
extends java.lang.Object

Class which can decorate a component when it has errors. Decoration is done through providing a border that can be applied to a component.

Author:

Tim Boudreau

Constructor Summary

Constructors

Constructor and Description
ComponentDecorator()

Method Summary

Methods

Modifier and Type	Method and Description
javax.swing.border.Border	createProblemBorder(java.awt.Component c, javax.swing.border.Border originalBorder, Severity severity) Create a border to apply to the component which shows an error.
static ComponentDecorator	noOpComponentDecorator()

Methods inherited from class java.lang.Object

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

Constructor Detail

ComponentDecorator

public ComponentDecorator()

Method Detail

createProblemBorder

public javax.swing.border.Border createProblemBorder(java.awt.Component c,
                                            javax.swing.border.Border originalBorder,
                                            Severity severity)

Create a border to apply to the component which shows an error. A useful way to create custom borders is to wrap the original border and paint it, then paint over it. If the insets of the border returned by this method are different than the insets of the original border, then the UI layout will "jump".

Severity.color() and Severity.image() are handy here.

Parameters:

c - The component

originalBorder - The original border of the component

severity - The severity of the problem

Returns:

A border. May not be null. To have no effect, simply return the original border.

noOpComponentDecorator

public static final ComponentDecorator noOpComponentDecorator()