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.Component; import java.awt.Container; import java.awt.Cursor; import javax.swing.JDialog; import javax.swing.JFrame; public class Main { /** * Toggles the cursor for the given component and all child components between * the wait cursor and the normal one. */ public static void setWaitCursor(final Component c, final boolean wait) { setCursor(c, wait ? Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR) : null); } /** * Sets the cursor for the given component and all child components to the * given cursor. */ public static void setCursor(final Component c, final Cursor cursor) { if (c == null) return; c.setCursor(cursor); if (c instanceof JFrame) setCursor(((JFrame) c).getContentPane(), cursor); else if (c instanceof JDialog) { setCursor(((JDialog) c).getContentPane(), cursor); } else if (c instanceof Container) { final Container contain = (Container) c; final Component[] sub = contain.getComponents(); for (int i = 0; i < sub.length; i++) setCursor(sub[i], cursor); } } }