Java tutorial
//package com.java2s; /* * #%L * VisBio application for visualization of multidimensional biological * image data. * %% * Copyright (C) 2002 - 2014 Board of Regents of the University of * Wisconsin-Madison. * %% * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as * published by the Free Software Foundation, either version 2 of the * License, or (at your option) any later version. * * This program 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 for more details. * * You should have received a copy of the GNU General Public * License along with this program. If not, see * <http://www.gnu.org/licenses/gpl-2.0.html>. * #L% */ import java.awt.Dimension; import java.net.URL; import javax.swing.ImageIcon; import javax.swing.JButton; public class Main { /** Constructs a JButton with an icon from the given file id. */ public static JButton makeButton(final Object owner, final String id, final String altText, final int wpad, final int hpad) { final URL url = owner.getClass().getResource(id); ImageIcon icon = null; if (url != null) icon = new ImageIcon(url); JButton button; if (icon == null) button = new JButton(altText); else { button = new JButton(icon); button.setPreferredSize(new Dimension(icon.getIconWidth() + wpad, icon.getIconHeight() + hpad)); } return button; } }