center Window - Java java.awt

Java examples for java.awt:Window

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Description

center Window

Demo Code

/*//from ww w. j  a  v  a  2  s .  c o  m
 * Copyright (c) 2014, Richard Simpson
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * * Redistributions of source code must retain the above copyright notice, this
 *   list of conditions and the following disclaimer.
 *
 * * Redistributions in binary form must reproduce the above copyright notice,
 *   this list of conditions and the following disclaimer in the documentation
 *   and/or other materials provided with the distribution.
 *
 * * Neither the name of the {organization} nor the names of its
 *   contributors may be used to endorse or promote products derived from
 *   this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
//package com.java2s;
import java.awt.*;

public class Main {
    public static void centerDialog(final Window dialog) {
        final GraphicsConfiguration config = GraphicsEnvironment
                .getLocalGraphicsEnvironment().getDefaultScreenDevice()
                .getDefaultConfiguration();

        final Rectangle screenBounds = config.getBounds();
        final Insets insets = Toolkit.getDefaultToolkit().getScreenInsets(
                config);

        screenBounds.x = screenBounds.x + insets.left;
        screenBounds.y = screenBounds.y + insets.top;
        screenBounds.width = screenBounds.width
                - (insets.left + insets.right);
        screenBounds.height = screenBounds.height
                - (insets.top + insets.bottom);

        // remember that casting doubles to int's always rounds down.
        dialog.setLocation(
                ((screenBounds.width / 2) + screenBounds.x - (dialog
                        .getWidth() / 2)), ((screenBounds.height / 2)
                        + screenBounds.y - (dialog.getHeight() / 2)));
    }
}

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