Use this static method if you want to center and set its position compared to the size of the current users screen size. - Java Swing

Java examples for Swing:Screen

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Description

Use this static method if you want to center and set its position compared to the size of the current users screen size.

Demo Code

/*//w  w w  .ja  v  a 2 s .co m
 * 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 com.java2s;
import java.awt.Component;
import java.awt.Dimension;

public class Main {
    /**
     * 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();
    }
}

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