JMeter example source code file (ComponentUtil.java)

This example JMeter source code file (ComponentUtil.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - JMeter tags/keywords

awt, component, component, componentutil, componentutil, dimension, dimension

The JMeter ComponentUtil.java source code

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.
 *
 */

package org.apache.jorphan.gui;

import java.awt.Component;
import java.awt.Dimension;

/**
 * This class is a Util for awt Component and could be used to place them in
 * center of an other.
 *
 * @version $Revision: 674365 $
 */
public final class ComponentUtil {
    /**
     * Use this static method if you want to center and set its position
     * compared to the size of the current users screen size. Valid percent is
     * between +-(0-100) minus is treated as plus, bigger than 100 is always set
     * to 100.
     *
     * @param component
     *            the component you want to center and set size on
     * @param percentOfScreen
     *            the percent of the current screensize you want the component
     *            to be
     */
    public static void centerComponentInWindow(Component component, int percentOfScreen) {
        if (percentOfScreen < 0) {
            centerComponentInWindow(component, -percentOfScreen);
            return;
        }
        if (percentOfScreen > 100) {
            centerComponentInWindow(component, 100);
            return;
        }
        double percent = percentOfScreen / 100.d;
        Dimension dimension = component.getToolkit().getScreenSize();
        component.setSize((int) (dimension.getWidth() * percent), (int) (dimension.getHeight() * percent));
        centerComponentInWindow(component);
    }

    /**
     * Use this static method if you want to center a component in Window.
     *
     * @param component
     *            the component you want to center in window
     */
    public static void centerComponentInWindow(Component component) {
        Dimension dimension = component.getToolkit().getScreenSize();

        component.setLocation((int) ((dimension.getWidth() - component.getWidth()) / 2),
                (int) ((dimension.getHeight() - component.getHeight()) / 2));
        component.validate();
        component.repaint();
    }

    /**
     * Use this static method if you want to center a component over another
     * component.
     *
     * @param parent
     *            the component you want to use to place it on
     * @param toBeCentered
     *            the component you want to center
     */
    public static void centerComponentInComponent(Component parent, Component toBeCentered) {
        toBeCentered.setLocation(parent.getX() + (parent.getWidth() - toBeCentered.getWidth()) / 2, parent.getY()
                + (parent.getHeight() - toBeCentered.getHeight()) / 2);

        toBeCentered.validate();
        toBeCentered.repaint();
    }

    /**
     * Private constructor to prevent instantiation.
     */
    private ComponentUtil() {
    }
}