Main.java Source code

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Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright (c) 2005-2016 Vincent Vandenschrick. All rights reserved.
 *
 *  This file is part of the Jspresso framework.
 *
 *  Jspresso 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.
 *
 *  Jspresso 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 Jspresso.  If not, see <http://www.gnu.org/licenses/>.
 */

import java.awt.Component;
import java.awt.Container;

import javax.swing.JComponent;

public class Main {
    /**
     * Retrieves the first contained component of a certain type.
     *
     * @param component
     *          the component to start from.
     * @param childComponentType
     *          the type of the component to look for.
     * @return the first contained component of the looked for type or null if
     *         none.
     */
    public static Component getFirstChildComponentOfType(Component component,
            Class<? extends JComponent> childComponentType) {
        if (childComponentType.isAssignableFrom(component.getClass())) {
            return component;
        }
        if (component instanceof Container) {
            Component[] children = ((Container) component).getComponents();
            for (Component child : children) {
                Component childResult = getFirstChildComponentOfType(child, childComponentType);
                if (childResult != null) {
                    return childResult;
                }
            }
        }
        return null;
    }
}