/*
 * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */
package javax.swing.border;

import java.awt.Graphics;
import java.awt.Insets;
import java.awt.Rectangle;
import java.awt.Component;
import java.io.Serializable;
import java.beans.ConstructorProperties;

A class which provides an empty, transparent border which takes up space but does no drawing.

Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeans has been added to the java.beans package. Please see XMLEncoder.

Author:David Kloba
/** * A class which provides an empty, transparent border which * takes up space but does no drawing. * <p> * <strong>Warning:</strong> * Serialized objects of this class will not be compatible with * future Swing releases. The current serialization support is * appropriate for short term storage or RMI between applications running * the same version of Swing. As of 1.4, support for long term storage * of all JavaBeans * has been added to the <code>java.beans</code> package. * Please see {@link java.beans.XMLEncoder}. * * @author David Kloba */
@SuppressWarnings("serial") public class EmptyBorder extends AbstractBorder implements Serializable {
The left inset of the border.
/** * The left inset of the border. */
protected int left;
The right inset of the border.
/** * The right inset of the border. */
protected int right;
The top inset of the border.
/** * The top inset of the border. */
protected int top;
The bottom inset of the border.
/** * The bottom inset of the border. */
protected int bottom;
Creates an empty border with the specified insets.
Params:
  • top – the top inset of the border
  • left – the left inset of the border
  • bottom – the bottom inset of the border
  • right – the right inset of the border
/** * Creates an empty border with the specified insets. * @param top the top inset of the border * @param left the left inset of the border * @param bottom the bottom inset of the border * @param right the right inset of the border */
public EmptyBorder(int top, int left, int bottom, int right) { this.top = top; this.right = right; this.bottom = bottom; this.left = left; }
Creates an empty border with the specified insets.
Params:
  • borderInsets – the insets of the border
/** * Creates an empty border with the specified insets. * @param borderInsets the insets of the border */
@ConstructorProperties({"borderInsets"}) public EmptyBorder(Insets borderInsets) { this.top = borderInsets.top; this.right = borderInsets.right; this.bottom = borderInsets.bottom; this.left = borderInsets.left; }
Does no drawing by default.
/** * Does no drawing by default. */
public void paintBorder(Component c, Graphics g, int x, int y, int width, int height) { }
Reinitialize the insets parameter with this Border's current Insets.
Params:
  • c – the component for which this border insets value applies
  • insets – the object to be reinitialized
/** * Reinitialize the insets parameter with this Border's current Insets. * @param c the component for which this border insets value applies * @param insets the object to be reinitialized */
public Insets getBorderInsets(Component c, Insets insets) { insets.left = left; insets.top = top; insets.right = right; insets.bottom = bottom; return insets; }
Returns the insets of the border.
Returns:an Insets object containing the insets from top, left, bottom and right
Since:1.3
/** * Returns the insets of the border. * * @return an {@code Insets} object containing the insets from top, left, * bottom and right * @since 1.3 */
public Insets getBorderInsets() { return new Insets(top, left, bottom, right); }
Returns whether or not the border is opaque. Returns false by default.
/** * Returns whether or not the border is opaque. * Returns false by default. */
public boolean isBorderOpaque() { return false; } }