Here you can find the source of hasParentScrollPane(JComponent component)
private static boolean hasParentScrollPane(JComponent component)
//package com.java2s; /*//ww w. j a va 2 s. c o m * Copyright 2002-2006 the original author or authors. * * Licensed under the Apache License, Version 2.0 (the "License"); you may not * use this file except in compliance with the License. You may obtain a copy of * the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations under * the License. */ import javax.swing.JComponent; import javax.swing.JScrollPane; import javax.swing.JViewport; public class Main { private static boolean hasParentScrollPane(JComponent component) { return component.getParent() != null && component.getParent() instanceof JViewport && component.getParent().getParent() instanceof JScrollPane; } }