Java tutorial
//package com.java2s; /* * Copyright 2013 Simon Thiel * * This file is part of SitJar. * * SitJar is free software: you can redistribute it and/or modify * it under the terms of the GNU LESSER GENERAL PUBLIC LICENSE as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * SitJar 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 Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with SitJar. If not, see <http://www.gnu.org/licenses/lgpl.txt>. * */ import java.awt.Component; import java.awt.Dialog; import java.awt.Frame; import java.awt.Window; import javax.swing.JDialog; import javax.swing.SwingUtilities; public class Main { public static JDialog getNewDialogForParentComponent(Component parent, String title, boolean modal) { return getNewDialogForParentComponent(parent, title, modal ? Dialog.ModalityType.APPLICATION_MODAL : Dialog.ModalityType.MODELESS); } public static JDialog getNewDialogForParentComponent(Component parent, String title, Dialog.ModalityType modal) { Frame frame = getParentFrameForCompomponent(parent); if (frame != null) { return new JDialog(frame, title, modal); } //else Dialog dialog = getParentDialogForCompomponent(parent); if (dialog != null) { return new JDialog(dialog, title, modal); } //else throw new RuntimeException("Parent window of component is neither a frame nor a dialog!"); } public static Frame getParentFrameForCompomponent(Component comp) { Window window = getParentWindowForComponent(comp); // or pass 'this' if you are inside the panel Frame parentFrame = null; if (window instanceof Frame) { parentFrame = (Frame) window; } return parentFrame; } public static Dialog getParentDialogForCompomponent(Component comp) { Window window = getParentWindowForComponent(comp); // or pass 'this' if you are inside the panel Dialog dialog = null; if (window instanceof Dialog) { dialog = (Dialog) window; } return dialog; } public static Window getParentWindowForComponent(Component comp) { return SwingUtilities.windowForComponent(comp); } }